CN1027394C - Storaging and filling system of liquefied petroleum gas - Google Patents
Storaging and filling system of liquefied petroleum gas Download PDFInfo
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- CN1027394C CN1027394C CN 90110092 CN90110092A CN1027394C CN 1027394 C CN1027394 C CN 1027394C CN 90110092 CN90110092 CN 90110092 CN 90110092 A CN90110092 A CN 90110092A CN 1027394 C CN1027394 C CN 1027394C
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Abstract
The present invention relates to a storing and filling system for liquefied petroleum gas. The present invention is characterized in that a liquid phase valve set is arranged in a liquid phase pipeline which is communicated with a storing tank, a pump, an unloading platform and a liquid distributing jar; the liquid distributing jar is additionally arranged between a liquefied gas filling pipeline and a high pressure outlet valve of the liquid phase valve set; a residual liquid valve set is additionally arranged between a gas phase valve set and a residual liquid jar; a reflux controller is installed among a liquefied gas pump, an outlet pipe and an inlet pipe of the liquid distributing jar in order to eliminate the vibration of equipment and the pipelines, which is caused by that the inflow quantity is more than the outflow quantity. A gas phase balancing device is connected between an outlet pipe and an inlet pipe of a compressor. The present invention can eliminate the vibration of the equipment and the pipelines to guarantee safe filling, so that centralized control is convenient, and an accident section is cut off; the present invention which has convenient operation and maintenance avoids the environmental pollution which is caused by leakage and discharge.
Description
The invention belongs to liquefied petroleum gas (LPG) is unloaded, storage, the designed process flow system of can.
At present, the design of storaging and filling system of liquefied petroleum gas is: the gas phase pipe on the unloading deck connects gas-liquid separator through the gas phase valve sets, be compressed into pressurized gas through gas separated by compressor, utilize pressurized gas that the liquid phase in the lng tanker is pressed into liquid phase pipeline and enters basin, when needs fill steel cylinder, by compressor or pump liquid gas is pressed and delivered to the separatory pipeline, fills steel cylinder by the rifle that fills that is connected on the separatory pipeline at last.This design system exists following major defect: (12 meters of the liquefied gas pump rates of discharge when 1. filling
3/ hour to close the per minute flow be 200 liters), be far longer than and fill the total discharge (the actual total discharge that charges into steel cylinder of per minute has only 71 liters) that rifle charges into steel cylinder, when liquid phase can not all be exported, can make liquefied gas pump and pipeline that powerful vibrations take place, flow velocity has surpassed 1.5 meter per seconds in addition, flow between middle pipeline, pump and the valve, rub between the liquid gas molecule, can produce electrostatic pressure, thus possibility breaking out of fire and explosive accident up to the 7000-8000 volt; 2. the liquid phase in the liquid-phase tube of unloading deck is subjected to the influence of temperature, and can produce very high pressure summer, usually is higher than tank car pressure, is unfavorable for loading and unloading, and the liquid phase of about 1-2 ton is discharged in when maintenance need be with pipeline, promptly wastes dangerous again.Winter, the sump pressure of tank car was just different owing to liquid gas component difference, and it is very difficult to fill, unload with pump in this case, must just can make the pump proper functioning through pressure treatment; 3. do not have auxiliary safety device in the flow process of compressor, pump, malfunctioning or maintenance the time can not be operated when safety valve, and equipment and pipeline are easy to generate powerful vibrations; 4. the liquefied gas residue before filling in the steel cylinder is all thrown away, and befouling environment is dangerous again; 5. lack in the system each position liquid phase stream of centralized control to control gear, be unfavorable for that modular repair operation and accident section cut off.Lack effective safety control on the basin; 6. stop valve is adopted at a lot of controls position in the system, and switching speed is slow, and valve packing does not very easily leak because of corrosion-resistant, also gets the switch direction when having an accident easily wrong.
The objective of the invention is to overcome existing shortcomings and deficiencies in the said system, design a kind of can safe storage, fill and unload liquid gas, be convenient to control and the storaging and filling system of liquefied petroleum gas of cut-out accident and hidden danger position, convenient for maintaining.
To achieve these goals, the technology used in the present invention measure is: in the liquid phase pipeline that leads to basin, pump, unloading deck and branch fluid cylinder the liquid phase valve sets is set, set up the branch fluid cylinder between the high-pressure outlet valve of lpg filling pipeline and liquid phase valve sets, the low-pressure inlet of liquid phase valve sets joins with the reflow pipe that divides fluid cylinder, its high-pressure outlet termination separatory cylinder inlet.The low tension outlet valve of liquid phase valve sets links to each other with the inlet of pump, and the high pressure entry valve of liquid phase valve sets is connected with delivery side of pump.The gas phase pipe of unloading deck and the high-pressure outlet valve of gas phase valve sets join, and the unloading deck liquid-phase tube is connected with the high pressure entry valve of liquid phase valve sets.Increased the raffinate valve sets between gas phase valve sets and residual liquid tank, the high pressure valve outlet of gas phase valve sets links to each other with the high pressure vapor inlet of raffinate valve sets, and the low pressure liquid phase outlet of raffinate valve sets connects residual liquid tank.Liquid phase valve group is connected unloading deck and basin respectively when being unloaded by tank car, when filling liquid gas by basin through gas phase valve sets, gas-liquid separator, compressor, separation voltage stabilizer, be connected with dividing fluid cylinder through the liquid phase valve sets again.
In order to eliminate owing to influx shakes greater than equipment and the pipeline that discharge causes, between the gateway pipe of liquefied gas pump, branch fluid cylinder, recirculation control device is housed, between the pipe of the gateway of compressor, be connected to the gas-liquid equilibrium device.
Because Emergeny Cutoff Valves is too fast or meet the protective action that can play automatic cut-out when fire heats up at flow velocity, on basin 11 gas, liquid outlet ball valve, Emergeny Cutoff Valves 40 is housed and is connected in series pump valve winding oil pump by oil pipe with pump valve group 4.When the oil pressure that oil pump is got when filling liquid gas reached 3MPa, the tank bottom emergency cut-off was opened, and filled to close oil pump after finishing, and had just cut off the liquefaction gas circuit in the basin.In the time of can not entering the basin district as the breaking out of fire of basin district and blast and people, as long as Emergeny Cutoff Valves can cut out automatically because of the fusible plug fusing of the inside in the time of 75 ± 5 ℃.
Because the tank car liquid-phase tube is higher than the unloading deck liquid-phase tube, liquid in pipe can not emptying, and easy splash is facial and cause frostbite on one's body when unloading unloading deck and take over.For the ease of safety operation, should make the unloading deck height reach 1.1-1.3 rice, guarantee that promptly the unloading deck position is higher than tank car gas, the liquid phase height of nozzle.
The recirculation control device of liquefied gas pump, branch fluid cylinder, between the gas-liquid equilibrium pipe of compressor and the control valve on the gas liquid-phase tube of unloading deck all change the outfit and be spherical valve, gas phase valve sets, liquid phase valve sets, the valve that the raffinate valve sets is connected between high-voltage tube and low-voltage tube is a ball valve, because of the filler in the ball valve is teflon, corrosion-resistant, open rapidly, per minute is 5 on switch at least, direction is single, and opening and closing angle is 90 °, good seal.Be added with Piping Safety Valves on the liquid pipe in the middle of between basin district and compression, when summer during exposure in sunshine intraluminal fluid gasification superpressure, highly pressurised liquid is drained automatically through safety valve.
Below by accompanying drawing the present invention is made a detailed description.
Fig. 1 always schemes for technological process of the present invention.
Fig. 2 is the unloading deck process flow diagram.
Fig. 3 is for dividing the fluid cylinder process flow diagram.
Fig. 4 is the process flow diagram of liquefied gas pump.
Fig. 5 is the compressor process flow diagram.
Fig. 6 is a raffinate valve sets schematic representation.
Fig. 7 is a liquid phase valve sets schematic representation.
Fig. 8 is a gas phase valve sets schematic representation.
See Fig. 1, the gas of basin 11, the liquid phase valve connects the Low pressure valve inlet of gas phase valve sets 7 and the high pressure valve g outlet of liquid phase valve sets 8 respectively, the low pressure valve D outlet and the gas-liquid separator 2 of gas phase valve sets, compressor 23 in the compressor flow process 3, separating voltage stabilizer 50 is connected, the high pressure valve G of gas phase valve sets links to each other with the high pressure vapor of raffinate valve sets 6 inlet 29, the low pressure liquid phase outlet 28 of raffinate valve sets connects residual liquid tank 10, gas phase pipe 12 in the unloading deck 1 is connected in the high pressure valve outlet of gas phase valve sets, liquid-phase tube 13 is connected with the high pressure valve inlet of liquid phase valve sets, the outlet of gas-liquid separator 2 is connected with the suction port of compressor, compressor outlet communicates with the high pressure valve G inlet of gas phase valve sets through separating voltage stabilizer 50, the inlet of pump 21 is communicated with the low pressure valve d inlet of liquid phase valve sets 8 in the pump technique flow process 5, the outlet of pump 21 is connected in the high pressure valve inlet of liquid phase valve sets, and the high pressure valve outlet of liquid phase valve sets is communicated with dividing fluid cylinder 9.On the gas phase of basin 11, the liquid phase outlet valve Emergeny Cutoff Valves 40 is housed, just disconnected valve is connected in series with pump valve group 4 mutually by oil pipe.
Fig. 2 is the unloading deck process flow diagram.
Fig. 3 is for dividing the cylinder process flow diagram.
Divide fluid cylinder 9 inlets to connect the high pressure valve outlet of liquid phase valve sets 8, divide the can outlet 20 of fluid cylinder to be connected with steel cylinder 30 by the liquid pipeline, on the inlet duct of branch fluid cylinder control valve 45 is housed, control valve is a ball valve, between the outer pipe that leads to liquid phase valve sets low-pressure inlet valve and branch fluid cylinder, be connected to manual reflow pipe 16, manually be connected to safety check 18 and manual backflow ball valve 43 on the reflow pipe, the automatic reflow pipe 17 of cross-over connection between minute fluid cylinder 9 and manual reflow pipe, automatically on the reflow pipe relief valve 19 is housed, ball valve 15 is equipped with in the relief valve bottom, divides on the fluid cylinder pressure gauge and pressure meter valve also are housed.When filling liquefied petroleum gas (LPG), will enter the mouth control ball valve 45, pressure meter valve and relief valve are opened, and will wait to fill steel cylinder 30 then and be connected in the can outlet 20 of branch fluid cylinder.When the delivery side of pump flow when filling flow, as long as open ball valve 15 below the relief valve, unnecessary liquid gas can be back to liquified gas container or return the inlet of pump by relief valve, safety check 18, makes pump guarantee to run well.In case relief valve breaks down or during the vibrations of malfunctioning generation pipeline, pump, as long as hand-driven return-flow valve 43 is opened, vibrations will disappear, and guarantee that liquid gas safety fills at once.
Fig. 4 is the process flow diagram of liquefied gas pump.
The Low pressure valve pipe 32 low pressure valve d outlet of the inlet of pump 21 and liquid phase valve sets is joined, and delivery side of pump connects the high pressure valve g inlet of liquid phase valve sets high pressure valve pipe 31.Control valve is equipped with in inlet outlet port at pump, access valve 45 on the inlet duct ', exit ball valve 44 on the outer pipe ', between two ball valves, be connected to manual reflow pipe 16 and manually backflow ball valve 43 ', the automatic reflow pipe 17 of cross-over connection between delivery side of pump pipe and manual reflow pipe ', relief valve 19 ' and backflow ball valve 42 automatically automatically is housed on the reflow pipe, the delivery side of pump pipe with export ball valve 44 ' be equipped with pressure gauge.By tank car when basin unloads liquid gas, after unloading deck gas phase pipe is connected with the gateway ball valve 44 of pump ', 45 ' and automatically reflow pipe 17 ' on ball valve 42 open, if the basin internal pressure is higher than tank car pressure, unnecessary pressure returns from relief valve 19, in case relief valve is malfunctioning, pump produces vibrations again, if the ball valve 43 that at this moment will manually reflux ' open a bit, just vibrations can disappear.
Fig. 5 is the compressor process flow diagram.
The inlet of compressor 23 is communicated with the low pressure valve outlet of gas phase valve sets 7 mesolow valve tubes 37, compressor outlet links to each other with the high pressure valve inlet of gas phase valve sets mesohigh valve tube 38, control valve is equipped with in compressor outlet and ingress, access port ball valve 45 on the inlet duct "; take on mouthful ball valve 44 on the outer pipe ", cross-over connection gas-liquid equilibrium pipe 48 and manual backflow ball valve 43 between outlet valve 44 " and inlet valve 45 " ", safety valve 22 is housed, safety valve bottom dress ball valve 15 on the balance tube ".Manual backflow ball valve 43 " and inlet ball valve 45 " has been arranged, when the malfunctioning generation vibrations of safety valve, as long as open manual backflow ball valve 43 "; just vibrations can disappear; safety valve testing does not influence return-flow system work yet, safety valve 22 can cut out during check, avoids air to enter system by compressor.
Fig. 6 is a raffinate valve sets schematic representation.
The high pressure vapor inlet 29 of raffinate valve sets joins with the high pressure valve outlet of gas phase valve sets, and the low pressure liquid phase outlet 28 of raffinate valve sets connects residual liquid tank 10.Raffinate valve sets 6 comprises low pressure liquid-phase tube 24 and high pressure vapor pipe 25, be connected to one group of residual-gas valve 27 on the low-voltage tube 24, be connected to one group of gas valve 26 on the high-voltage tube 25, between residual-gas valve 27 and gas valve 26, outlet valve 49 is housed, be connected with the gas line on the middle adapter of connection residual-gas valve and gas valve, gas line and steel cylinder 30 join.When reclaiming raffinate, the steel cylinder that will have raffinate links to each other with the gas line, open the gas valve 26 on the high-voltage tube 25, pressurized gas enter steel cylinder and gradually with the system pressure balance, pressure is closed gas valve 26 when equating, steel cylinder is overturn the end up, open the residual-gas valve 27 on the low-voltage tube, make raffinate flow into raffinate basin 10, close residual-gas valve 27 along middle adapter, open outlet valve 49 again and make the unnecessary gas discharge of steel cylinder mesohigh outdoor, shut outlet valve 49 and get final product.
Fig. 7 is a liquid phase valve sets schematic representation.
Fig. 8 is a gas phase valve sets schematic representation.
Low-voltage tube 32 inlets 34 of liquid phase valve sets connect the inlet of pump by the low pressure valve outlet, high-voltage tube 31 outlets 35 of liquid phase valve sets connect delivery side of pump by the high pressure valve inlet, the liquid phase valve sets is by Low pressure valve pipe 32, high pressure valve pipe 31 and high pressure valve g, low pressure valve d forms, low-voltage tube 32 links to each other with high-voltage tube 31 by middle adapter and the high pressure valve g low pressure valve d that is connected on the middle adapter, the outlet of liquid phase valve sets respectively with basin, divide fluid cylinder, unloading deck, pump to be connected by valve separately.
Low pressure valve pipe 37 outlet 39 of gas phase valve sets is connected with the inlet of gas-liquid separator 2, the inlet 36 of the high pressure valve pipe 38 of gas phase valve sets is communicated with the outlet of compressor, valve tube 38 is by the middle adapter of high low pressure valve tube, connect the high pressure vapor inlet of raffinate valve sets 6, gas phase valve sets 7 is made up of Low pressure valve pipe 37, high pressure valve pipe 38, high pressure valve G, low pressure valve D, and high pressure valve pipe 38 connects Low pressure valve pipe 37 by middle adapter and the high pressure valve G, the low pressure valve D that are connected on the pipe.
On the high and low pressure valve tube of gas phase valve sets, liquid phase valve sets, pressure gauge 33 ' 33 is housed ".For the high and low pressure valve tube end that makes gas phase, liquid phase valve sets and raffinate valve sets stressed evenly, height pressure pipe two ends be ellipse pipe cap 41,41 '.
Utilize the present invention to unload, fill and to reclaim the working procedure of raffinate as follows:
1. adopt compressor to unload, fill cylinder for liquefied gas:
Gas phase with tank car, the liquid phase high-voltage tube is connected with the gas liquid-phase tube of unloading deck, open the emergency shutoff device of tank car and basin, open the gas phase valve of basin and lead to the low pressure valve of gas phase valve sets, gas phase in the basin enters gas-liquid separator by Low pressure valve, carry out gas-liquid separation, gas after the separation enters compressor, compressed pressurized gas flow to voltage stabilizing separator 50, make the gas storage voltage stabilizing, to reach required pressure, pressurized gas enter the high pressure valve group pipe of gas valve door group after voltage stabilizing separates, and enter tank car through the high pressure valve that the gas phase pipe of unloading deck is gone to tank car, pressurized gas are pressed into high pressure valve and low pressure valve middle adapter in the liquid phase valve sets with the liquid phase of tank car through the liquid-phase tube of unloading deck, open liquid phase valve sets high pressure valve and basin high pressure valve, and this moment, liquid gas flowed into basin.
When needs during with the lpg filling steel cylinder, the Low pressure valve of the gentle phase valve sets of gas phase valve of one of them basin is opened, gas enters gas-liquid separator through gas phase valve sets low pressure valve, compressed again machine, the voltage stabilizing separator, pressurized gas enter another basin through the high pressure valve of gas phase valve sets after reaching required pressure, the valve that this basin is led to the liquid phase valve sets is opened, liquid phase is through the middle adapter of liquid phase valve sets high pressure and low pressure valve, open high pressure valve, open again and lead to the high pressure valve that divides fluid cylinder, liquid phase flows into the separatory cylinder, by the rifle that fills that is connected on the branch fluid cylinder on the many ram's hornss steel cylinder is filled.
2. adopt liquefied gas pump to unload, fill cylinder for liquefied gas.
Gas phase, the liquid phase of tank car are connected with the gas liquid-phase tube of unloading deck with high-voltage tube, open the emergency cut-off of tank car basin, liquid phase in the tank car is taken over through low pressure valve and high pressure valve that the unloading deck liquid-phase tube enters in the liquid phase valve sets, open low pressure valve, liquid phase is in Low pressure valve group pipe inflow pump, the high pressure and the Low pressure valve that enter the liquid phase valve sets through the highly pressurised liquid that pressurizes are taken over, and open high pressure valve, and liquid flows into basin through high pressure valve group pipe and basin liquid phase valve.
When filling steel cylinder, open the liquid phase outlet valve of basin, liquid phase enters the high low pressure valve middle adapter of liquid phase valve sets, open low pressure valve, liquid phase enters pump through liquid phase valve sets pipe, and the highly pressurised liquid that is flowed out by pump enters the high pressure valve of liquid phase valve sets, opens high pressure valve and divides the fluid cylinder inlet valve, liquid phase enters the branch fluid cylinder, and fills rifle through liquide separating tube steel cylinder is filled.
3. utilize the raffinate recovering device that the steel cylinder raffinate is reclaimed:
Open the gas valve of basin, gas phase is through the low pressure valve of gas phase valve sets, gas-liquid separator, compressor, the voltage stabilizing separator enters gas phase valve sets high pressure valve then, enter the middle adapter of gas phase high pressure valve 26 with the residual-gas valve 27 of raffinate valve sets again, the gas line of middle adapter links to each other with steel cylinder, open gas phase high pressure valve 26 and cylinder angle valve, make pressurized gas enter steel cylinder, when steel cylinder and system's equipressure, close high pressure valve 36, steel cylinder is overturn base up, open residual-gas valve 27, raffinate enters residual liquid tank by steel cylinder.Open outlet valve 49 at last, it is outdoor that unnecessary gas is discharged, and closes outlet valve 49.
The present invention and former liquefaction gas-reservoir can system relatively have the following advantages:
1. owing to installed the reflux that divides fluid cylinder and pump additional, at any time abatement apparatus and pipeline vibrations guarantee that liquefied gas fills safely.
2. installed the liquid phase valve sets additional, the safety controls such as emergency cut-off are convenient to centralized Control and accident section and are cut off convenient for maintaining.
3. on liquid pipe, raffinate pipeline, all be provided with safety valve and aux. control valve door, change ball valve into by original stop valve, made things convenient for operation, guaranteed safety.
4. be added with in-line relief valve in the basin district with the liquid pipe of compression in the middle of the room, when summer sunlight be exposed to the sun, automatically drain through safety valve during intraluminal fluid gas superpressure, avoid causing the accident because of seasonal variations.
5. reclaim raffinate, eliminated the environmental pollution that causes by discharging raffinate.
Claims (9)
1, storaging and filling system of liquefied petroleum gas, comprise unloading deck (1), gas-liquid separator (2), compressor set, the liquefied gas pump device, the raffinate recovering device, gas, liquid pipeline plant control unit and storage facility, the gas phase pipe (12) of unloading deck (1) joins with the high-pressure outlet valve of gas phase valve sets (7), the low pressure valve outlet of gas phase valve sets is through gas-liquid separator (2), compressor (23) with separate voltage stabilizer (50) inlet and be communicated with, separating the outlet of voltage stabilizer and the high pressure valve inlet of gas phase valve sets joins, the gas valve of basin (11) communicates with the low pressure valve of gas phase valve sets inlet, feature of the present invention is to lead to basin, pump, in the liquid phase pipeline of unloading deck and branch fluid cylinder liquid phase valve sets (8) is set, installing divides fluid cylinder (9) between the high-pressure outlet valve of lpg filling pipeline and liquid phase valve sets, the low-pressure inlet end of liquid phase valve sets joins with the reflux that divides fluid cylinder, its high-pressure outlet end, connect branch fluid cylinder inlet, the low tension outlet valve of liquid phase valve sets and the inlet of pump join, its high pressure entry valve is connected with the outlet of pump (21), the liquid-phase tube of unloading deck (13) is connected with the high pressure entry valve of liquid phase valve sets, the high pressure valve outlet of gas phase valve sets links to each other with the high pressure vapor inlet (29) of raffinate valve sets (6), the low pressure liquid phase outlet (28) of raffinate valve sets connects residual liquid tank (10), at liquefied gas pump, be provided with recirculation control device between the gateway pipe of branch fluid cylinder, be connected to the gas-liquid equilibrium device between the pipe of compressor gateway.
2,, it is characterized in that said recirculation control device is the control and the control that manually refluxes of refluxing automatically according to the described liquefied petroleum gas storage fill system of claim 1.
3, according to the described liquefied petroleum gas storage fill system of claim 2, it is characterized in that being connected to manual reflow pipe (16 ') and manual ball valve (43 ') between the control valve of inlet, outer pipe of pump, the automatic reflow pipe of cross-over connection (17 ') between delivery side of pump pipe and manual reflow pipe, relief valve of adorning on the reflow pipe (19) and backflow ball valve (42) automatically automatically.
4, according to the described liquefied petroleum gas storage fill system of claim 2, it is characterized in that on the inlet duct of branch fluid cylinder (9) control valve being housed, between the outer pipe that leads to liquid phase valve sets low-pressure inlet valve and branch fluid cylinder, be connected to manual reflow pipe (16), manually be connected to safety check (18) and manual backflow ball valve (43) on the reflow pipe, the automatic reflow pipe of cross-over connection (17) between minute fluid cylinder and manual reflow pipe, automatically on the reflow pipe relief valve (19) is housed, ball valve (15) is equipped with in the relief valve bottom.
5, according to the described liquefied petroleum gas storage can system of claim 1, it is characterized in that between the control valve of compressor gateway pipe cross-over connection gas-liquid equilibrium pipe (48) and manually the backflow ball valve (43 "); safety valve (22) and ball valve are housed on the balance tube are added with Piping Safety Valves on the liquid pipe of centre between basin district and compression.
6, according to the described liquefied petroleum gas storage fill system of claim 1, it is characterized in that cross-over connection has gas-liquid phase equilibrium pipe (14) between the control valve of unloading deck gas phase pipe and liquid-phase tube, the unloading deck height is 1.1～1.3 meters and is higher than the gas, liquid height of nozzle of tank car.
7, according to claim 1,3,4,5,6 described liquefied petroleum gas storage fill systems, it is characterized in that said control valve is a ball valve, high-voltage tube and the valve between low-voltage tube that gas phase valve sets, liquid phase valve sets, raffinate valve sets connect are ball valve.
8, according to the described liquefied petroleum gas storage fill system of claim 1, it is characterized in that storing the gas of filling, Emergeny Cutoff Valves (40) is equipped with in the liquid phase outlet port, and cut-off valve is connected in series with the pump valve group (4) of emergency shutoff device mutually by oil pipe, and the pump valve group is connected with oil pump.
9, according to the described liquefied petroleum gas storage fill system of claim 1, it is characterized in that the high-voltage tube (25) in the raffinate valve sets is connected with low-voltage tube (24) by gas valve (26), residual-gas valve (27), is connected to outlet valve (49) between gas valve (26) and residual-gas valve (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90110092 CN1027394C (en) | 1990-12-21 | 1990-12-21 | Storaging and filling system of liquefied petroleum gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90110092 CN1027394C (en) | 1990-12-21 | 1990-12-21 | Storaging and filling system of liquefied petroleum gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1053668A CN1053668A (en) | 1991-08-07 |
| CN1027394C true CN1027394C (en) | 1995-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90110092 Expired - Fee Related CN1027394C (en) | 1990-12-21 | 1990-12-21 | Storaging and filling system of liquefied petroleum gas |
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| CN (1) | CN1027394C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044515C (en) * | 1997-10-28 | 1999-08-04 | 童德明 | All functional storing and filling system for small liquid gas station |
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| KR101033702B1 (en) * | 2009-04-15 | 2011-05-09 | 주식회사 엔케이 | CNG refueling system and method with remaining gas compress apparatus |
| CN102192402A (en) * | 2010-03-06 | 2011-09-21 | 裴仁伟 | Spherical tank pressure control system |
| CN102312871A (en) * | 2011-07-11 | 2012-01-11 | 山西晋西压力容器有限责任公司 | Mechanical pressure conversion container |
| CN102826498A (en) * | 2012-07-25 | 2012-12-19 | 江苏永钢集团有限公司 | Filling device for liquid tank car |
| CN103332646B (en) * | 2013-07-02 | 2015-11-18 | 河南神马氯碱发展有限责任公司 | A kind of liquid-chlorine transportation filling-pipe |
| CN103486441B (en) * | 2013-09-25 | 2015-08-05 | 中国石油集团工程设计有限责任公司 | A kind of LPG low-temperature atmosphere-pressure stocking system and method |
| CN104197187B (en) * | 2014-09-23 | 2016-05-04 | 瓮福（集团）有限责任公司 | A kind of liquefied ammonia fills and the apparatus and method that unload |
| CN105299443B (en) * | 2015-11-23 | 2017-04-12 | 南通江天化学股份有限公司 | Liquefied gas filling and replacement method |
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-
1990
- 1990-12-21 CN CN 90110092 patent/CN1027394C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044515C (en) * | 1997-10-28 | 1999-08-04 | 童德明 | All functional storing and filling system for small liquid gas station |
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|---|---|
| CN1053668A (en) | 1991-08-07 |
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