CN212246204U - Gas-liquid separation device for storage tank pipeline - Google Patents
Gas-liquid separation device for storage tank pipeline Download PDFInfo
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- CN212246204U CN212246204U CN202021954847.0U CN202021954847U CN212246204U CN 212246204 U CN212246204 U CN 212246204U CN 202021954847 U CN202021954847 U CN 202021954847U CN 212246204 U CN212246204 U CN 212246204U
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Abstract
The utility model provides a gas-liquid separation device for storage tank pipeline, its characterized in that: including buffer tank, feed liquor pipe, drain pipe and outlet duct, feed liquor pipe one end and buffer tank lower part intercommunication, feed liquor pipe other one end when using with defeated oil pipe line intercommunication, drain pipe one end and buffer tank lower part intercommunication, when using with the storage tank intercommunication, the outlet duct lower extreme communicates with buffer tank upper portion, is equipped with reciprocating motion's float from top to bottom in the buffer tank, can seal the outlet duct when the float shifts up, can seal the drain pipe when the float moves down. The utility model has the advantages that: the liquid medium and the gas medium in the pipeline can be automatically separated during the production operation of the wharf tank field, the liquid medium enters the storage tank from the infusion pipeline, the gas medium is discharged from the upper part of the gas outlet pipe, the volatilization of the liquid is effectively reduced, the damage of the floating roof is avoided, the resources are saved, the environmental pollution is reduced, and meanwhile, the structure is simple and the manual operation is not needed.
Description
Technical Field
The utility model relates to a gas-liquid separation device.
In particular to a gas-liquid separation device of a storage tank pipeline.
Background
The liquid petrochemical of groove ship gets into the storage tank in rear tank field through the conveying line after connecing unloading, and the length of conveying line generally is several hundred meters to several kilometers, and during the operation of unloading the ship, the gas that seals up in the pipeline gets into the storage tank from the storage tank lower part, discharges from storage tank upper portion, and this process has increaseed the liquid volatilization of storage tank, and the storage tank annotates the liquid process and is called the storage tank heavy respiration. After the ship unloading operation is finished, liquid media in pipelines need to be swept, the sweeping media are generally water or compressed gas, the compressed gas is adopted as the sweeping media, the pressure of the compressed gas is 0.4-0.7 Mpa, the sweeping gas enters the storage tank, the storage tank is at a high liquid level, the generated volatilization amount is larger, more serious, an inner floating roof is installed in the volatile liquid storage tank, the compressed sweeping line gas rapidly expands and moves upwards after entering the storage tank, the inner floating roof is damaged, and the damage of the inner floating roof caused by sweeping is dozens of times every year domestically.
At present, no corresponding technology is available for solving the problems: for example, the gas sealed in the pipeline and the gas swept from the pipeline enter the storage tank during production operation, so that a large amount of stored liquid volatilizes, resource waste and environmental pollution are caused, and the damage to the floating roof in the anti-volatilization equipment in the tank is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a storage tank pipeline gas-liquid separation equipment that reduces storage liquid and volatilize.
The purpose of the utility model is achieved through the following technical measures:
gas-liquid separation equipment for storage tank pipeline, its characterized in that: including buffer tank, feed liquor pipe, drain pipe and outlet duct, feed liquor pipe one end and buffer tank lower part intercommunication, feed liquor pipe other one end when using with defeated oil pipe line intercommunication, drain pipe one end and buffer tank lower part intercommunication, when using with the storage tank intercommunication, the outlet duct lower extreme communicates with buffer tank upper portion, is equipped with reciprocating motion's float from top to bottom in the buffer tank, can seal the outlet duct when the float shifts up, can seal the drain pipe when the float moves down.
According to the specific optimization scheme, the guide piece is fixedly arranged in the buffer tank and is a guide rod, the number of the guide rods is one, the center of the floater is provided with a through hole matched with the guide rod, a guide sealing piece is arranged between the upper part and/or the lower part of the floater and the guide rod, and the floater is in contact with the drain pipe for sealing when moving downwards.
The utility model provides a concrete optimization scheme, the fixed guide that is equipped with in the buffer tank, the guide be the guide bar, and the quantity of guide bar is a plurality of, and a plurality of guide bars distribute along float circumference, float and guide bar sliding connection, in the drain pipe stretches into the buffer tank, the float moves down the time and the drain pipe contact is sealed.
The utility model provides a concrete optimization scheme, the fixed guide that is equipped with in the buffer tank, the guide is the uide bushing, the quantity of uide bushing is one, the uide bushing is interior to cup joint with the float periphery, uide bushing and drain pipe fixed connection, be equipped with the inlet that is linked together with the feed liquor pipe on the uide bushing, be equipped with the liquid outlet that is linked together with the drain pipe on the uide bushing, still be equipped with a plurality of feed liquor holes with the buffer tank intercommunication on the uide bushing, the drain pipe stretches into in the buffer tank, the float moves down the time with the drain pipe contact.
According to a specific optimization scheme, the floater is in a hollow structure or the density of materials of the floater is less than 500Kg/m, the cross section of the floater is circular or rectangular or polygonal, and the perimeter of the end part of the floater far away from the middle part is gradually reduced.
The utility model provides a specific optimization scheme still includes row's raffinate device, arranges the raffinate device and includes connecting pipe and tubing pump, and connecting pipe one end and buffer tank bottom intercommunication, the other one end of connecting pipe and drain pipe or storage tank intercommunication are equipped with the check valve on the connecting pipe.
The utility model provides a specific optimization scheme, row raffinate device still includes first level sensor, second level sensor and controller, and first level sensor sets up in buffer tank upper portion, and the second level sensor sets up in the buffer tank lower part, and the controller is connected with first level sensor, second level sensor and pipeline pump electricity respectively.
The utility model provides a concrete optimization scheme, be equipped with in the buffer tank with feed liquor pipe matched with keep off the liquid board and/or be equipped with the check valve on the drain pipe and/or be equipped with the manhole on the buffer tank.
In a specific optimization scheme, a demister and/or a flame arrester is arranged on the gas outlet pipe.
According to a specific optimization scheme, an air outlet sealing piece is arranged on the upper portion of a floater or the lower portion of an air outlet pipe, the air outlet sealing piece is a nonmetal sealing piece, the shape of the air outlet sealing piece is circular or conical, and an air outlet end of the air outlet pipe is communicated with a waste gas collecting pipe network of a storage tank or the air outlet pipe is communicated with the waste gas collecting pipe network.
Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that:
the liquid medium and the gas medium in the pipeline can be automatically separated during the production operation of the wharf tank field, the liquid medium enters the storage tank from the infusion pipeline, the gas medium is discharged from the upper part of the gas outlet pipe, the volatilization of the liquid is effectively reduced, the damage of the floating roof is avoided, the resources are saved, the environmental pollution is reduced, and meanwhile, the structure is simple and the manual operation is not needed.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
FIG. 1 is a schematic structural diagram of the storage tank pipeline gas-liquid separation device of the present invention.
Fig. 2 is a schematic structural view of the float and the guide of the present invention.
Fig. 3 is a schematic structural view of a float and a guide according to another embodiment of the present invention.
Fig. 4 is a schematic structural view of a float and a guide according to another embodiment of the present invention.
In the figure: the device comprises a liquid inlet pipe 1, a liquid baffle plate 2, a buffer tank 3, a floater 4, a guide rod 5, a gas outlet sealing piece 6, a gas outlet pipe 7, a demister 8, a flame arrester 9, a manhole 10, a liquid outlet pipe 11, a check valve 12, a pipeline pump 13, a check valve 14, a storage tank 15, an oil pipeline 16, a guide sealing piece 17, a through hole 18 and a guide seat 19; 20 guide sleeve.
Detailed Description
Example 1: as shown in the attached drawing 1-2, gas-liquid separation device for 15 pipelines of storage tank, including buffer tank 3, feed liquor pipe 1, drain pipe 11 and outlet duct 7, 1 one end of feed liquor pipe communicates with 3 lower parts of buffer tank, communicate with 16 pipelines of oil pipeline when 1 other one end of feed liquor pipe uses, feed liquor pipe 1 also can weld both peripheries each other with 16 accessible flange connections of oil pipeline, 11 one end of drain pipe communicate with 3 lower parts of buffer tank, communicate with storage tank 15 when 11 other one ends of drain pipe use, 7 lower extremes of outlet duct communicate with 3 upper portions of buffer tank, be equipped with reciprocal float 4 that can move from top to bottom in the buffer tank 3, can seal outlet duct 7 when float 4 moves up, can seal drain pipe 11 when float 4 moves down.
Feed liquor pipe 1 and buffer tank 3 welding, drain pipe 11 and buffer tank 3 welding. In addition, other fixing connection modes such as integral casting and the like can also be selected.
When the device is used, the gas-liquid separating device for the pipeline of the storage tank 15 is positioned at one end of the infusion pipeline close to the storage tank 15, and the shorter the distance between the gas-liquid separating device for the pipeline of the storage tank 15 and the storage tank 15 is, the more easily the liquid is prevented from being volatilized into gas, so that resource waste and environmental pollution are caused.
The buffer tank 3 is a cylindrical tank, the upper part of the buffer tank 3 is sealed by a seal head, and the lower part of the buffer tank 3 is sealed by a seal head.
The buffer tank 3 is internally and fixedly provided with a guide part, the guide part is a guide rod 5, the number of the guide rods 5 is one, the axis of the floater 4 is provided with a through hole 18 matched with the guide rod 5, the floater 4 is of a closed structure, guide sealing parts 17 are respectively arranged between the upper part and the lower part of the floater 4 and the guide rod 5, and the floater 4 is in contact sealing with the liquid outlet pipe 11 when moving downwards.
The float 4 is a hollow structure. Furthermore, when the density of the material of float 4 is lower than 500Kg/m, the float 4 may also be of solid construction. The cross section of the float 4 is circular, rectangular or polygonal, when the middle part of the float 4 is cylindrical, the two ends are conical, and the perimeter of the end part of the float 4 far from the middle part is gradually reduced. The shape of the floater 4 close to the liquid inlet pipe 1 is matched with that of the liquid inlet pipe 1 so as to realize contact sealing. For example, in the present embodiment, the outer side surface of one end of the liquid inlet pipe 1 close to the float 4 should be arranged in an arc shape; or, when the floater 4 is a rectangular body, the outer side surface of one end of the liquid inlet pipe 1 close to the floater 4 is set to be a plane, so that after the floater 4 falls down, the outer periphery of the liquid inlet pipe can completely block the liquid inlet port of the liquid inlet pipe 1.
When the liquid discharging device is used, the floater 4 moves up and down along the guide rod 5, the floater 4 moves down under the action of gravity and moves up under the action of liquid buoyancy, when the floater 4 is positioned at the lower part, the liquid discharging pipe 11 is sealed by the floater 4, and the air outlet at the upper part is in an open state; when the float 4 is in the upper position, the float 4 closes the gas outlet and the liquid outlet pipe 11 is in the open state.
The device further comprises a residual liquid discharging device, the residual liquid discharging device comprises a connecting pipe and a pipeline pump 13, one end of the connecting pipe is communicated with the bottom of the buffer tank 3, the other end of the connecting pipe is communicated with the liquid outlet pipe 11 or the storage tank 15, and a one-way valve 14 is arranged on the connecting pipe.
The residual liquid discharging device further comprises a first liquid level sensor, a second liquid level sensor and a controller, the first liquid level sensor is arranged on the upper portion of the buffer tank 3, the second liquid level sensor is arranged on the lower portion of the buffer tank 3, and the controller is electrically connected with the first liquid level sensor, the second liquid level sensor and the pipeline pump 13 respectively. The controller is a programmable controller or a common controller such as a CPU or an industrial personal computer, and the controller receives a sensor signal, compares the sensor signal with the sensor signal and controls the start and stop of the pump, which is a known technology and is not described herein.
A liquid baffle plate 2 matched with the liquid inlet pipe 1 is arranged in the buffer tank 3. The liquid baffle 2 is arranged in the buffer tank 3 and is positioned above the opening of the liquid inlet pipe 1. The liquid baffle 2 is obliquely arranged.
The liquid pipe is provided with a check valve 12. The check valve 12 functions to prevent the liquid in the storage tank 15 from flowing back into the buffer tank 3.
The buffer tank 3 is provided with a manhole 10.
A demister 8 is arranged on the air outlet pipe 7. A small amount of liquid droplets contained in the gas discharged from the gas outlet pipe 7 are blocked by the demister 8 and flow back to the buffer tank 3.
A flame arrester 9 is arranged on the gas outlet pipe 7, and the flame arrester 9 is positioned at one end of the demister 8 far away from the floater 4.
The upper part of the float 4 is provided with an air outlet sealing member 6, and the air outlet sealing member 6 can be fixed on the upper part of the float 4 and moves together with the float 4. In addition, the outlet seal 6 may be provided at a lower portion of the outlet pipe 7. The air outlet sealing piece 6 is a nonmetal sealing piece, and the shape of the air outlet sealing piece 6 is circular ring or conical.
The outlet end of the outlet pipe 7 is communicated with a waste gas collecting pipe network of the storage tank 15. In addition, the air outlet pipe 7 can also be directly connected to an exhaust gas collecting pipe network to treat exhaust gas.
Example 2: as shown in the attached drawing 3, gas-liquid separation device for 15 pipelines of storage tank, including buffer tank 3, feed liquor pipe 1, drain pipe 11 and outlet duct 7, 1 one end of feed liquor pipe communicates with 3 lower parts of buffer tank, communicate with defeated oil pipeline 16 when 1 other one end of feed liquor pipe is used, 11 one end of drain pipe communicates with 3 lower parts of buffer tank, communicate with storage tank 15 when 11 other one end of drain pipe is used, 7 lower extremes of outlet duct and 3 upper portions of buffer tank communicate, be equipped with reciprocating motion's float 4 from top to bottom in the buffer tank 3, can seal outlet duct 7 when float 4 moves up, drain pipe 11 when float 4 moves down can seal.
The rest is the same as in example 1.
Example 3: as shown in figure 4, gas-liquid separation device for 15 pipelines of storage tank, including buffer tank 3, feed liquor pipe 1, drain pipe 11 and outlet duct 7, 1 one end of feed liquor pipe communicates with 3 lower parts of buffer tank, communicate with defeated oil pipeline 16 when 1 other one end of feed liquor pipe is used, 11 one end of drain pipe communicates with 3 lower parts of buffer tank, communicate with storage tank 15 when 11 other one end of drain pipe is used, 7 lower extremes of outlet duct and 3 upper portions of buffer tank communicate, be equipped with reciprocating motion's float 4 from top to bottom in the buffer tank 3, can seal outlet duct 7 when float 4 moves up, drain pipe 11 when float 4 moves down can seal.
The rest is the same as in example 1.
The use method of the gas-liquid separation device for the pipeline of the storage tank 15 comprises the following steps:
the method comprises the following steps: exhausting: when ship unloading is started, gas sealed in an oil pipeline 16 enters the buffer tank 3 under the pushing of conveying liquid, at the moment, the floater 4 is positioned at the lower part of the buffer tank 3 and seals the liquid outlet pipe 11, the gas outlet pipe 7 is in an open state, and the gas is discharged from the gas outlet pipe 7 and cannot enter the storage tank 15;
step two: liquid drainage: after liquid in an oil pipeline 16 enters the buffer tank 3, the floater 4 gradually moves upwards under the action of buoyancy, the floater 4 leaves the liquid outlet pipe 11, the liquid outlet pipe 11 is gradually opened, the liquid enters the storage tank 15 from the liquid outlet pipe 11, after the buffer tank 3 is filled with the liquid and the floater 4 moves upwards to the top, the air outlet sealing piece 6 between the floater 4 and the air outlet is pressed tightly under the action of the buoyancy, the air outlet pipe 7 is completely sealed by the floater 4, and the liquid is continuously conveyed until ship unloading is finished.
Step three: gas purging: when the oil pipeline 16 is subjected to gas purging, after the purging gas reaches the buffer tank 3, the purging gas moves upwards in the buffer tank 3, the purging gas is filled in the buffer tank 3 from top to bottom gradually, the floater 4 moves downwards gradually along with the liquid level reduction caused by the reduction of the liquid in the buffer tank 3, the gas outlet pipe 7 is opened, the purging gas is discharged from the gas outlet pipe 7, when the liquid level in the buffer tank 3 is reduced to be close to the liquid outlet pipe 11, the floater 4 moves downwards to the bottommost part, the liquid outlet pipe 11 is completely sealed by the floater 4, the purging gas cannot enter the liquid outlet pipe 11, and gas-liquid separation is realized.
Step four: and (4) discharging residual liquid, opening a residual liquid discharging device, sending the reference liquid in the buffer tank 3 into a storage tank 15 by a pipeline pump 13, and closing the residual liquid discharging device after the residual liquid is discharged completely. This step may be performed manually or automatically.
The automatic mode comprises the following sub-steps:
the method comprises the following steps: the first liquid level sensor and the second liquid level sensor respectively monitor liquid level information in the buffer tank 3 and transmit signals to the controller;
step two is carried out: the controller receives the signals for comparison, and when the first liquid level sensor does not detect liquid and the second liquid level sensor detects that the state of the liquid is greater than one minute, the signals are transmitted to the pipeline pump 13 to control the pipeline pump 13 to start working until the pipeline pump 13 idles.
In the rest of the state, the line pump 13 is in a stopped state.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should fall within the patent coverage of the present invention.
Claims (10)
1. Gas-liquid separation equipment for storage tank pipeline, its characterized in that: including buffer tank, feed liquor pipe, drain pipe and outlet duct, feed liquor pipe one end and buffer tank lower part intercommunication, feed liquor pipe other one end when using with defeated oil pipe line intercommunication, drain pipe one end and buffer tank lower part intercommunication, when using with the storage tank intercommunication, the outlet duct lower extreme communicates with buffer tank upper portion, is equipped with reciprocating motion's float from top to bottom in the buffer tank, can seal the outlet duct when the float shifts up, can seal the drain pipe when the float moves down.
2. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the buffer tank is internally and fixedly provided with a guide piece which is a guide rod, the number of the guide rods is one, the center of the floater is provided with a through hole matched with the guide rod, a guide sealing piece is arranged between the upper part and/or the lower part of the floater and the guide rod, and the floater is contacted and sealed with the liquid outlet pipe when moving downwards.
3. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the fixed guide that is equipped with in the buffer tank, the guide be the guide bar, and the quantity of guide bar is a plurality of, and a plurality of guide bars distribute along float circumference, float and guide bar sliding connection, drain pipe stretch into in the buffer tank, and the float moves down the time and the drain pipe contact is sealed.
4. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the fixed guide that is equipped with in the buffer tank, the guide is the uide bushing, the quantity of uide bushing is one, the uide bushing is interior week and the float periphery cup joints, uide bushing and drain pipe fixed connection, be equipped with the inlet that is linked together with the feed liquor pipe on the uide bushing, be equipped with the liquid outlet that is linked together with the drain pipe on the uide bushing, still be equipped with a plurality of feed liquor holes with the buffer tank intercommunication on the uide bushing, the drain pipe stretches into in the buffer tank, the float moves down the time and is sealed with the drain pipe contact.
5. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the floater is in a hollow structure or the density of the material of the floater is less than 500Kg/m in a high-speed downward slope, the cross section of the floater is circular or rectangular or polygonal, and the perimeter of the end part of the floater far away from the middle part is gradually reduced.
6. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the device comprises a buffer tank, a liquid outlet pipe and a storage tank, and is characterized by further comprising a residual liquid discharging device, wherein the residual liquid discharging device comprises a connecting pipe and a pipeline pump, one end of the connecting pipe is communicated with the bottom of the buffer tank, the other end of the connecting pipe is communicated with the liquid outlet pipe or the storage tank, and a one-way valve is arranged on the connecting.
7. The vapor-liquid separation device for a storage tank line according to claim 6, characterized in that: the residual liquid discharging device further comprises a first liquid level sensor, a second liquid level sensor and a controller, the first liquid level sensor is arranged on the upper portion of the buffer tank, the second liquid level sensor is arranged on the lower portion of the buffer tank, and the controller is electrically connected with the first liquid level sensor, the second liquid level sensor and the pipeline pump respectively.
8. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: a liquid baffle matched with the liquid inlet pipe is arranged in the buffer tank, and/or a check valve is arranged on the liquid outlet pipe and/or a manhole is arranged on the buffer tank.
9. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: the gas outlet pipe is provided with a demister and/or a flame arrester.
10. The vapor-liquid separation device for a storage tank line according to claim 1, characterized in that: an air outlet sealing piece is arranged on the upper portion of the floater or the lower portion of the air outlet pipe, the air outlet sealing piece is a nonmetal sealing piece, the shape of the air outlet sealing piece is circular or conical, and the air outlet end of the air outlet pipe is communicated with a waste gas collecting pipe network of the storage tank or the air outlet pipe is communicated with a waste gas collecting pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021954847.0U CN212246204U (en) | 2020-09-09 | 2020-09-09 | Gas-liquid separation device for storage tank pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021954847.0U CN212246204U (en) | 2020-09-09 | 2020-09-09 | Gas-liquid separation device for storage tank pipeline |
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| Publication Number | Publication Date |
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| CN212246204U true CN212246204U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021954847.0U Active CN212246204U (en) | 2020-09-09 | 2020-09-09 | Gas-liquid separation device for storage tank pipeline |
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- 2020-09-09 CN CN202021954847.0U patent/CN212246204U/en active Active
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