CN202576374U - Natural gas liquid removing and desulfurizing device - Google Patents
Natural gas liquid removing and desulfurizing device Download PDFInfo
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- CN202576374U CN202576374U CN 201220228065 CN201220228065U CN202576374U CN 202576374 U CN202576374 U CN 202576374U CN 201220228065 CN201220228065 CN 201220228065 CN 201220228065 U CN201220228065 U CN 201220228065U CN 202576374 U CN202576374 U CN 202576374U
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Abstract
The utility model provides a natural gas liquid removing and desulfurizing device and belongs to the technical field of chemical industry. The natural gas liquid removing and desulfurizing device comprises a natural gas conveying pipeline, a gas-liquid separation tank and a desulfurizing device, a liquid collection plate and an inverted U-shaped pipe are arranged at the bottom of the gas-liquid separation tank, liquids separated from the gas-liquid separation tank are slowly dropped into a hollow chamber arranged below the liquid collection plate through the inverted U-shaped pipe, then desulfurized natural gas is returned to the hollow chamber arranged below the gas-liquid separation tank, and the liquids are atomized through a high flow of natural gas and returned into a main natural gas pipeline together with the desulfurized natural gas. According to the natural gas liquid removing and desulfurizing device, the desulfurizing device is used for performing desulfurization for the natural gas, and the desulfurizing device has the advantages that the cost is low, the desulfurization process is environment-friendly, and resources are saved.
Description
Technical field
The utility model relates to a kind of natural qi exhaustion liquid desulfurizer, belongs to chemical technology field.
Background technology
Contain hydrogen sulfide, thio-alcohol material, heavy hydrocarbon gas, saturation water and other impurity in the Sweet natural gas, the hydrogen sulfide in the Sweet natural gas is met water and is formed weak acid, and the faintly acid existence can cause equipment and corrosion of pipe such as steel.In addition, if will contain the Sweet natural gas of hydrogen sulfide and use the time, can contain sulfide in the discharging waste gas that produces behind the combustion of natural gas, and sulfide pollutes the environment also, harm people's health as domestic fuel.Therefore, splitting the Sweet natural gas of extraction at first need be with hydrogen sulfide stripping wherein, to satisfy the request for utilization of plant produced and civilian commodity gas.
At present, the sulfur method that domestic Sweet natural gas adopts mainly contains wet processing and dry process, and wet desulphurization is meant that through the solution-air contact hydrogen sulfide in the Sweet natural gas is transferred to liquid phase, and Sweet natural gas is purified, and then doctor solution is carried out reprocessing cycle and uses.Dry desulfurization is meant virgin gas with certain air speed and through gas-solid contact exchange, the hydrogen sulfide in the gas phase is adsorbed onto on the sweetening agent, thereby reaches the purpose that purifies virgin gas through the fixed bed of solid desulfurating agent is housed.
In the prior art, especially, at first need carry out gas-liquid separation to Sweet natural gas for the dry desulfurization of Sweet natural gas, remove the liquid-solid impurity in the Sweet natural gas after, again Sweet natural gas is carried out desulfurization and handles.This is that the liquid-solid impurity that contains in the Sweet natural gas can cover the sweetening agent surface because when Sweet natural gas is carried out desulfurization, thereby reduces the sweetening effectiveness of sweetening agent.Chinese patent document CN101037630B discloses a kind of oil gas field natural gas high gravity desulfurization method, is specially gas well natural gas after separator is handled, and Sweet natural gas gets into the high gravity desulfurization machine; With the sweetening agent counter current contact that pumps into from the lean solution jar in the high gravity desulfurization machine; Remove the hydrogen sulfide in the Sweet natural gas, isolated Sweet natural gas gets into gas transmission line, and the solution that removes hydrogen sulfide is through subsequent disposal; Make sweetening agent regeneration, prepare elemental sulfur simultaneously.
In the above-mentioned technology, adopt the high gravity desulfurization machine equipment, Sweet natural gas removed hydrogen sulfide treatment, and the solution that removes hydrogen sulfide has been carried out the recovery of sweetening agent regeneration and elemental sulfur, have technology simply, production run and the low advantage of desulphurization cost.But in the above-mentioned technology, when gas well natural gas is carried out separating treatment, be directly from the gas well extraction owing to carry out the gas well natural gas of gas-liquid separation; Has very big pressure; When getting in the gas-liquid separator, cause also to have very high pressure in the gas-liquid separator, after gas well natural gas is handled through gas-liquid separator; Isolated gas is easy under the effect of pressure, discharge with isolated liquid; Cause gas-liquid separation incomplete like this, and can cause the amount of the Sweet natural gas of follow-up desulfurization processing to reduce, caused the wasting of resources.In addition; The treatment station in gas field, oil field basically all is arranged on the field; Selexol process for extraction also carries out in the open air, and when guaranteeing intemperance, the waste liquid that Sweet natural gas is carried out obtaining after the gas-liquid separation does not freeze; Usually need thermal insulation layer be set to waste liquid waste gas storage tank after the gas-liquid separation, so also can cause the cost of liquid waste treating apparatus significantly to increase.
In the prior art, carried out broad research to the incomplete problem of gas-liquid separation in the gas-liquid separation process.Chinese patent document CN201783230U discloses a kind of gas-liquid separation device, comprises a separating pipe, is arranged to be basically perpendicular to ground, gas passage that this separating pipe comprises a gas-liquid dividing point, make progress from the gas-liquid dividing point and downward fluid passage; Connect this fluid passage with the end in horizontal S bend pipe road, this S bend pipe road, and between the top in this end and S bend pipe road collected liquid, to form a fluid-tight end, the other end in this S bend pipe road is drawn the liquid that overflows from this fluid-tight section.Above-mentioned gas-liquid separation device carries out gas-liquid separation through simple structure to containing liquid gas, can remedy the halfway problem of gas-liquid separation in the existing gas-liquid separation equipment vent gas.In addition; Japanese documentation P2003-126631A also discloses a kind of gas-liquid separator, and said gas-liquid separation is made up of upper container and bottom container, and upper container is communicated with bottom container; The sidewall of bottom container is provided with liquid outlet; Perhaps bottom container can also be arranged to a horizontal S bend pipe road, and an end in said S bend pipe road is communicated with upper container, and the other end in S bend pipe road is as liquid outlet.Said gas-liquid separator also is in bottom container, to form fluid-tight, when carrying out gas-liquid separation to containing liquid gas, can avoid the halfway problem of gas-liquid separation in the existing gas-liquid separation equipment vent gas.
In the above-mentioned technology; Described gas-liquid separator all is to solve the halfway problem of gas-liquid separation through simple fluid-tight is set; But; When using above-mentioned technology and carrying out gas-liquid separation, the problem of thermal insulation layer need be set when not solving intemperance to the waste tank after the Sweet natural gas gas-liquid separation, so also cause the cost of liquid waste treating apparatus significantly to increase.In addition; When the Sweet natural gas to extraction adopts above-mentioned technology to carry out gas-liquid separation; Owing to also contain some solid impurities simultaneously in the Sweet natural gas of extraction, and the existence of solid impurity line clogging when causing liquid to discharge easily, and after the line clogging; Liquid can not in time be discharged, and causes security incident easily.
Summary of the invention
The technical problem that the utility model solved is when in the prior art Sweet natural gas being carried out the gas-liquid separation before the desulfurization; Need thermal insulation layer be set to the waste tank after the gas-liquid separation; Caused cost significantly to increase, contained solid impurity in the liquid after gas-liquid separation in addition, if directly liquid is discharged; Also can cause the liquid discharge tube road to stop up; Cause security incident easily, and then provide a kind of and need not thermal insulation layer be set to waste tank and keep automatically that waste liquid does not freeze in the waste tank, and can effectively handle the natural qi exhaustion liquid desulfurizer of solid impurity in the waste liquid after the gas-liquid separation.
In order to solve the problems of the technologies described above; The utility model provides a kind of natural qi exhaustion liquid desulfurizer; Comprise knockout drum, in said knockout drum, be provided with gas-liquid separator, said gas-liquid separator is divided into collection chamber and liquid collecting room with the internal space of said knockout drum; Said collection chamber is positioned at the top of said gas-liquid separator, and said liquid collecting room is positioned at the bottom of said gas-liquid separator;
Said knockout drum is provided with the first Sweet natural gas import, and the said first Sweet natural gas import is communicated with said gas-liquid separator; Be provided with first gas outlet at the top of said knockout drum, be provided with liquid exit in the bottom of said knockout drum;
Also comprise sweetener, the gas feed of said sweetener is connected with said first gas outlet;
In said liquid collecting room, be provided with liquid collecting plate, said liquid collecting plate is divided into top liquid collecting cavity and lower bank sap cavity with said liquid collecting room;
In said liquid collecting cavity, be provided with the inverted u-shaped pipe, an end of said inverted u-shaped pipe places the top of liquid collecting plate, and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate and extends in the said exhaust chamber;
Said inverted u-shaped pipe top also is provided with the vertical pipeline with U type pipe internal communication, and the top of said vertical pipeline is positioned at the top of said liquid collecting cavity liquid level;
The sidewall of said knockout drum is provided with the desulphurised natural gas import that is communicated with said exhaust chamber, and said desulphurised natural gas import is connected with the pneumatic outlet of said sweetener.
Said gas-liquid separator is the sub-gas-liquid separator of eddy flow.
Also be provided with the coalescence jar, the second Sweet natural gas import that is provided with on first gas outlet of said knockout drum and the coalescence pot sidewall is connected, and the coalescence inner core that is provided with in the said second Sweet natural gas import and the said coalescence jar is connected; Be provided with second gas outlet at said coalescence pot sidewall or top, said second gas outlet is connected with the gas feed of said sweetener; Said coalescence pot bottom is provided with liquid exit.
Inner at said coalescence jar, the bottom that is positioned at said coalescence jar is provided with liquid collecting plate, and said liquid collecting plate is divided into top liquid collecting cavity and lower bank sap cavity with the liquid collecting space of said coalescence jar bottom; In said liquid collecting cavity, be provided with the inverted u-shaped pipe, an end of said inverted u-shaped pipe places the top of liquid collecting plate, and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate and extends in the said exhaust chamber; Said inverted u-shaped pipe top also is provided with the vertical pipeline with U type pipe internal communication, and the top of said vertical pipeline is positioned at the top of said liquid collecting cavity liquid level.
The bore of said inverted u-shaped pipe is 1 ~ 6mm, is preferably 1.5 ~ 3mm.
The end that said inverted u-shaped pipe extends in the said exhaust chamber is provided with trap.
Said inverted u-shaped pipe top also is provided with the vertical pipeline with U type pipe internal communication, and the top of said vertical pipeline is positioned at the top of said liquid collecting cavity liquid level.
Said liquid collecting plate is obliquely installed, and angle of inclination a is 10 ~ 15 °.
Said liquid collecting plate top also is provided with slag-drip opening, is used for the artificial removal of solid impurity on the liquid collecting plate.
Said knockout drum and coalescence jar bottom also are provided with the connecting pipeline that is used to be communicated with said liquid collecting cavity and said exhaust chamber, and said connecting pipeline is provided with and is used to control the valve that said connecting pipeline opens and closes.
Between said coalescence jar and said sweetener, also be provided with at least one surge tank, the Sweet natural gas import that is provided with on the gas outlet of said coalescence jar and the surge tank is connected, and the gas outlet of said surge tank is connected with said sweetener.
In addition, in the liquid collecting cavity of said knockout drum and coalescence jar, can also be provided with liquidometer, the top in the said collection chamber in said knockout drum can also be provided with mist eliminator.
The utility model technical scheme is compared prior art and is had following advantage:
(1) in the said natural qi exhaustion liquid desulfurizer of the utility model,, liquid collecting plate is belonged to the space be divided into top liquid collecting cavity and lower bank sap cavity through in knockout drum and coalescence jar, liquid collecting plate being set; Liquid after natural gas via gas-liquid separation or the coarse separation falls on the liquid collecting plate; The inverted u-shaped pipe is set on the liquid collecting plate, the vertical pipeline with inverted u-shaped pipe internal communication is set on said inverted u-shaped pipe top, the top of said vertical pipeline is positioned at the top of said liquid collecting cavity liquid level; Liquid is assembled in liquid collecting cavity like this; When the height of liquid collecting intracavity liquid was lower than inverted u-shaped pipe top height, liquid that can not was discharged from, and plays the fluid-tight effect; The Sweet natural gas of prevention after gas-liquid separation or coarse separation discharged with isolated liquid, improves gas-liquid separation effect; When the height of liquid on the liquid collecting plate was higher than inverted u-shaped pipe top height, said liquid got into the exhaust chamber of liquid collecting plate below under pressure through the inverted u-shaped pipe, realize the automatic discharge of liquid; And liquid is on liquid collecting plate in the accumulative process, and the solid impurity that contains in the liquid can be deposited on the liquid collecting plate along with action of gravity on the liquid collecting plate, realizes solid-liquid separation, thereby having avoided solid impurity to get into U type pipe causes U type pipe plug plug; Sweet natural gas after the last desulfurization gets into the exhaust chamber in the knockout drum, carries the liquid that is pressed in the exhaust chamber through the inverted u-shaped pipe and from knockout drum, discharges.Because the Sweet natural gas after the desulfurization has certain temperature,, thereby can guarantee that the liquid that gets in the exhaust chamber can not freeze yet under the condition of cold usually greater than >=30 ℃.The said natural qi exhaustion liquid desulfurizer of the utility model has made full use of the heat of Sweet natural gas self; Reached and to have added thermal insulation layer and can realize that liquid does not freeze; And the purpose that can discharge automatically; The problem of having avoided frequent needs artificially the liquid in the knockout drum to be discharged has the advantage that cost is low, system is stable.
(2) in the said natural qi exhaustion liquid desulfurizer of the utility model; Can also between said knockout drum and said sweetener, the coalescence jar be set; Knockout drum is connected with the coalescence jar earlier; Be connected the fluent meterial that so further contains in the effective elimination Sweet natural gas, the gas-liquid separation effect of raising Sweet natural gas again with sweetener.And at least one surge tank can also be set between coalescence jar and sweetener again, after the natural gas via surge tank buffered after the gas-liquid separation, get into again and carry out the desulfurization processing in the sweetener.
(3) in the said natural qi exhaustion liquid desulfurizer of the utility model; The lower space of coalescence inner core also is provided with liquid collecting plate in the coalescence jar; And the vertical pipeline that the inverted u-shaped pipe is set on liquid collecting plate and is communicated with the inverted u-shaped pipe; Also has the function with the same automatic drain of knockout drum like this in the coalescence jar, the problem of having avoided frequent needs artificially the liquid in the knockout drum to be discharged.
(3) in the said natural qi exhaustion liquid desulfurizer of the utility model; The bore that further limits the inverted u-shaped pipe is 1 ~ 6mm, is preferably 1.5 ~ 3mm, because caliber is less; Can make that to get into the flow velocity of liquid of exhaust chamber through the inverted u-shaped pipe very low; Be generally 3 ~ 100g/min, be preferably 8 ~ 30g/min, and the flow velocity of Sweet natural gas reaches 6480m in the pipeline
3/ hr; The Sweet natural gas that can guarantee to take off the high flow rate after the liquid desulfurization like this gets into the atomization of liquid that flow velocity is very low in the exhaust chamber of knockout drum; Liquid mixing after the atomizing is taken knockout drum out of with Sweet natural gas in taking off the liquid desulphurised natural gas, and returns the Sweet natural gas main pipe line.Because the flow rate of liquid that gets in the exhaust chamber is very low; The amount of discharge opeing intracavity liquid seldom in unit time; So through the Sweet natural gas behind the exhaust chamber, the amount of the liquid that is atomized that it contains seldom can not impact the quality of taking off the liquid desulphurised natural gas in the unit time.The said natural qi exhaustion liquid desulfurizer of the utility model can be realized automatic drain and the processing of liquid in knockout drum, the problem of having avoided frequent needs artificially the liquid in the knockout drum to be discharged.
Description of drawings
For the content that makes the utility model is understood more easily, the utility model will combine following accompanying drawing and embodiment that the content of the utility model is further explained;
Fig. 1 is the johning knot composition of natural qi exhaustion liquid desulfurizer described in the embodiment 1;
Fig. 2 for be connected with among the embodiment 2 the coalescence jar the johning knot composition of natural qi exhaustion liquid desulfurizer;
Fig. 3 is for being provided with the johning knot composition of the natural qi exhaustion liquid desulfurizer of inverted u-shaped pipe in the coalescence jar among the embodiment 3
Fig. 4 is the johning knot composition of the tilted-putted natural qi exhaustion liquid desulfurizer of liquid collecting plate in the knockout drum described in the embodiment 4;
Fig. 5 is the johning knot composition of the natural qi exhaustion liquid desulfurizer that liquid collecting plate is obliquely installed in the coalescence jar described in the embodiment 5;
Fig. 6 is the embodiment 6 said johning knot compositions that are connected with the natural qi exhaustion liquid desulfurizer of a surge tank;
Fig. 7 embodiment 7 said johning knot compositions that are connected with the natural qi exhaustion liquid desulfurizer of two surge tanks;
Wherein, Reference numeral is:
1. knockout drum; 2. gas-liquid separator; 3. inverted u-shaped pipe; 4. liquid collecting plate; 5. mist eliminator; 6. the first Sweet natural gas import; 7. first gas outlet; 8. pipeline; 9. pipeline; 10. desulphurised natural gas import; 11. connecting pipeline; 12. liquidometer; 13. SV; 14. pressure warning unit; 15. trap; 16. vertical pipeline; 17. pipeline; 18. coalescence jar; 19. the second Sweet natural gas import; 20. coalescence inner core; 21. second gas outlet; 22. pipeline; 23. surge tank; 24 pipelines; 25. surge tank; 26 pipelines.
Embodiment
Natural qi exhaustion liquid desulfurizer; Comprise knockout drum 1; In said knockout drum 1, be provided with gas-liquid separator 2, said gas-liquid separator 2 is selected cyclonic separator, and said cyclonic separator is divided into collection chamber and liquid collecting room with the internal space of said knockout drum 1; Said collection chamber is positioned at the top of said cyclonic separator, and said liquid collecting room is positioned at the bottom of said cyclonic separator; Be provided with the first Sweet natural gas import 6 at said knockout drum 1 middle part, the said first Sweet natural gas import 6 is communicated with said cyclonic separator; Be provided with first gas outlet 7 at the top of said knockout drum 1, be provided with liquid exit in the bottom of said knockout drum 1; Said natural qi exhaustion liquid desulfurizer also comprises thionizer, and the gas feed of said thionizer is connected with said first gas outlet 7 through pipeline 8; In said liquid collecting room, be provided with liquid collecting plate 4, said liquid collecting plate 4 is divided into top liquid collecting cavity and lower bank sap cavity with said liquid collecting room; In said liquid collecting cavity, being provided with internal diameter is the inverted u-shaped pipe 3 of 15mm, and an end of said inverted u-shaped pipe 3 places the top of liquid collecting plate 4, and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate 4 and extends in the said exhaust chamber; Said inverted u-shaped pipe 3 tops also are provided with the vertical pipeline 16 with U type pipe internal communication; The internal diameter of said vertical pipeline 16 is 15mm; The top of said vertical pipeline 16 is positioned at the top of said liquid collecting cavity liquid level; The sidewall of said knockout drum 1 is provided with the desulphurised natural gas import 10 that is communicated with said exhaust chamber, and said desulphurised natural gas import 10 is connected with the pneumatic outlet of said thionizer through pipeline 9.
In the present embodiment; Said natural qi exhaustion liquid desulfurizer in use; Sweet natural gas gets in the gas-liquid separator through the gas feed at knockout drum middle part, and after gas-liquid separation, Sweet natural gas upwards gets into collection chamber; Pneumatic outlet by the gas-liquid separation tank top is discharged, and gets into thionizer and carries out the desulfurization processing; Liquid gets into liquid collecting cavity; Accumulate on the liquid collecting plate that is provided with in the liquid collecting cavity; When accumulative liquid levels on the liquid collecting plate was higher than inverted u-shaped pipe top, said liquid got into the exhaust chamber of liquid collecting plate below under pressure with the flow velocity of 300g/min through the inverted u-shaped pipe; Sweet natural gas after the thionizer desulfurization is handled returns in the exhaust chamber of knockout drum below; After the atomization of liquid in the exhaust chamber; The liquid that carries after the atomizing in the exhaust chamber is discharged from the liquid exit of gas-liquid separation pot bottom, gets into the Sweet natural gas main pipe lines through pipeline 26.
The said natural qi exhaustion liquid desulfurizer of present embodiment; On the basis of embodiment 1; Select the sub-gas-liquid separator of eddy flow as the gas-liquid separator in the present embodiment; Between sub-gas-liquid separator of eddy flow and thionizer, also be provided with coalescence jar 18, first gas outlet 7 of said knockout drum 1 is connected through the Sweet natural gas import 19 that is provided with on pipeline 17 and coalescence jar 18 sidewalls, and the coalescence inner cores 20 that are provided with in said Sweet natural gas import 19 and the said coalescence jar 18 are connected; Be provided with gas outlet 21 at said coalescence jar 18 sidewalls, said gas outlet 21 is connected with the gas feed of said sweetener; Said coalescence jar 18 bottoms are provided with liquid exit.
In the present embodiment; Said natural qi exhaustion liquid desulfurizer in use, the Sweet natural gas after the sub-gas-liquid separator separates of eddy flow is introduced into the coalescence jar; In the coalescence jar after coarse separation is handled; The gas outlet of natural gas via coalescence pot sidewall setting gets into thionizer to carry out desulfurization and handles, and liquid is expelled to the vent line of gas-liquid separation pot bottom through the liquid exit of coalescence pot bottom, carries together after the atomizing of the Sweet natural gas after desulfurization is handled then and gets into the Sweet natural gas main pipe line.
The said natural qi exhaustion liquid desulfurizer of present embodiment on the basis of embodiment 2, is provided with liquid collecting plate 4 in said coalescence jar 18 bottoms, and said liquid collecting plate 4 is divided into top liquid collecting cavity and lower bank sap cavity with said coalescence jar 18 bottoms; In said liquid collecting cavity, being provided with internal diameter is the inverted u-shaped pipe 3 of 6mm, and an end of said inverted u-shaped pipe 3 places the top of liquid collecting plate 4, and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate 4 and extends in the said exhaust chamber; Said inverted u-shaped pipe 3 vertical middle parts also are provided with the vertical pipeline 16 with U type pipe internal communication, and the internal diameter of said vertical pipeline 16 is 6mm, and the top of said vertical pipeline 16 is positioned at the top of said liquid collecting cavity liquid level.
In the present embodiment; Said natural qi exhaustion liquid desulfurizer in use, Sweet natural gas carries out coarse separation in the coalescence jar after, liquid gets into liquid collecting cavity; Accumulate on the liquid collecting plate that is provided with in the liquid collecting cavity; When accumulative liquid levels on the liquid collecting plate was higher than inverted u-shaped pipe top, said liquid was the exhaust chamber of the inverted u-shaped pipe of 6mm with the flow velocity entering liquid collecting plate below of 100g/min through internal diameter under pressure, realizes the automatic drain function identical with knockout drum.
The said natural qi exhaustion liquid desulfurizer of present embodiment, on the basis of embodiment 3, the collection chamber top in said knockout drum 1 is provided with mist eliminator 5; Liquid collecting plate 4 in the said knockout drum is obliquely installed, and angle of inclination a is 10 °, and said liquid collecting plate 4 tops are provided with slag-drip opening, are used for the artificial removal of solid impurity on the liquid collecting plate; The bore of the inverted u-shaped pipe 3 in the said knockout drum is 1mm; Said inverted u-shaped pipe 3 tops also are provided with the vertical pipeline 16 with U type pipe internal communication; The internal diameter of said vertical pipeline 16 is 1mm; The top of said vertical pipeline 16 is positioned at the top of said liquid collecting cavity liquid level; Said knockout drum 1 bottom is provided with the connecting pipeline 11 that is used to be communicated with said liquid collecting cavity and said exhaust chamber, and said connecting pipeline 11 is provided with and is used to control the valve that said connecting pipeline 11 opens and closes; Said knockout drum 1 top also is provided with and is used to guarantee the stable SV of jar internal pressure 13, and the pressure warning unit 14 that is used to measure knockout drum 1 internal pressure; The end that said inverted u-shaped pipe 3 extends in the said exhaust chamber is provided with trap 15; Be provided with liquidometer 12 in the liquid collecting cavity in the said knockout drum 1.
In the present embodiment; Said natural qi exhaustion liquid desulfurizer in use; After the natural gas via knockout drum carries out gas-liquid separation; Gas gets into the collection chamber on knockout drum top, and entering coalescence jar carried out further coarse separation after the mist eliminator that is provided with in the process collection chamber was further removed the liquid foam of carrying secretly in the gas; Liquid gets into the liquid collecting cavity in the knockout drum; When knockout drum just starts; When the liquid on the liquid collecting plate did not reach the fluid-tight state, the trap that is provided with on the inverted u-shaped pipe can prevent that gas from getting in the exhaust chamber of liquid collecting plate below, when the liquid on the liquid collecting plate is higher than inverted u-shaped pipe top through the inverted u-shaped pipe that is communicated with; Liquid is that the U type pipe of 1mm is pressed in the exhaust chamber of liquid collecting plate bottom with the flow velocity of 3g/min through internal diameter under pressure, has realized the automatic drain function of knockout drum; When liquid was assembled on the liquid collecting plate of knockout drum tilt, the solid impurity that contains in the liquid can be discharged solid impurity through the slag-drip opening that is arranged on the liquid collecting plate top along with action of gravity accumulates in the lower of inclination liquid collecting plate then easily; When assembling on the liquid collecting plate of liquid in knockout drum; Can also observe the height of liquid level in the liquid collecting cavity through the liquidometer that is provided with on the gas-liquid separation pot sidewall; When the reading of liquidometer surpasses set(ting)value, show that the liquid level in the liquid collecting cavity surpasses set(ting)value, at this moment; Can open the valve on the connecting pipeline, the liquid in the liquid collecting cavity is got in the discharge opeing chamber through connecting pipeline; Can also measure the knockout drum internal pressure through the pressure warning unit that is arranged on said gas-liquid separation tank top in addition, when the pressure in the knockout drum is higher than set(ting)value, can open the safety-valve, discharge certain pressure, stable with the gas-liquid separation internal pressure that guarantees.
The said natural qi exhaustion liquid desulfurizer of present embodiment on the basis of embodiment 4, is obliquely installed the liquid collecting plate 4 in the said coalescence jar 18, and angle of inclination a is 10 °; Liquid collecting plate 4 tops in the said coalescence jar 18 are provided with slag-drip opening, are used for the artificial removal of solid impurity on the liquid collecting plate; The bore of the inverted u-shaped pipe 3 in the said coalescence jar 18 is 3mm, and the internal diameter of the vertical pipeline 16 that is communicated with said inverted u-shaped pipe 3 is 3mm, and the end that the said inverted u-shaped pipe 3 in the said coalescence jar extends in the said exhaust chamber is provided with trap 15; Said coalescence jar 18 bottoms are provided with and are used to be communicated with the interior liquid collecting cavity of said coalescence jar and the connecting pipeline 11 of exhaust chamber, and said connecting pipeline 11 is provided with and is used to control the valve that said connecting pipeline 11 opens and closes; Be provided with liquidometer 12 in the liquid collecting cavity in the said coalescence jar 18.
In the present embodiment, said natural qi exhaustion liquid desulfurizer in use, the Sweet natural gas after knockout drum separates advances the coalescence jar; After coarse separation; Liquid gets into the liquid collecting cavity in the coalescence jar, when starting at the beginning of the coalescence jar, when the liquid on the liquid collecting plate does not reach the fluid-tight state; The trap that is provided with on the inverted u-shaped pipe can prevent that gas from getting in the exhaust chamber of liquid collecting plate below through the inverted u-shaped pipe that is communicated with, and further improves gas-liquid separation effect; When the liquid in the said coalescence jar on the liquid collecting plate was higher than inverted u-shaped pipe overhead height, liquid got into exhaust chamber with the flow velocity of 30g/min through the inverted u-shaped pipe; When liquid was assembled on the liquid collecting plate of said coalescence jar tilt, the solid impurity that contains in the liquid can be discharged solid impurity through the slag-drip opening that is arranged on the liquid collecting plate top along with action of gravity accumulates in the lower of inclination liquid collecting plate then easily; When liquid is assembled on the liquid collecting plate in the coalescence jar; Can also observe the height of liquid level in the liquid collecting cavity through the liquidometer that is provided with on the coalescence pot sidewall; When the reading of liquidometer surpasses set(ting)value, show that the liquid level in the liquid collecting cavity surpasses set(ting)value, at this moment; Can open the valve on the connecting pipeline that is provided with on the coalescence pot sidewall, the liquid in the liquid collecting cavity is got in the discharge opeing chamber in the coalescence jar through connecting pipeline.
The said natural qi exhaustion liquid desulfurizer of present embodiment on the basis of embodiment 5, all is obliquely installed the liquid collecting plate 4 in said knockout drum and the said coalescence jar, and angle of inclination a is 15 °; The bore of the inverted u-shaped pipe 3 in said knockout drum and the said coalescence jar all is set to 1.5mm, and vertical pipeline 16 internal diameters that are communicated with said inverted u-shaped pipe 3 also all are set to 1.5mm; Between said coalescence jar 18 and said thionizer, also be provided with a surge tank 23; The gas outlet 21 of said coalescence jar 18 is connected through the Sweet natural gas import of pipeline 22 with surge tank 23 lower curtate settings, and the gas outlet that said surge tank 23 tops are provided with is connected with said thionizer through pipeline 8.
In the present embodiment, said natural qi exhaustion liquid desulfurizer in use, when the liquid on the liquid collecting plate was higher than inverted u-shaped pipe overhead height, liquid got into exhaust chamber with the flow velocity of 8g/min through the inverted u-shaped pipe; Sweet natural gas after knockout drum and coalescence jar separating treatment gets into surge tank, after buffered, gets into thionizer again and carries out the desulfurization processing.
The said natural qi exhaustion liquid desulfurizer of present embodiment on the basis of embodiment 3, selects the bore of the inverted u-shaped pipe 3 in said knockout drum and the said coalescence jar to be 4mm, and the vertical pipeline internal diameter at said inverted u-shaped pipe 3 tops also is set to 4mm; A surge tank 25 also is set between said surge tank 23 and said thionizer; The gas outlet that said surge tank 23 tops are provided with is connected with the Sweet natural gas import that said surge tank 25 tops are provided with through pipeline 24, and the gas outlet of said surge tank 25 lower curtate settings is connected with said thionizer.Said surge tank 25 tops also are provided with and are used to guarantee the stable SV of jar internal pressure 13, and the pressure warning unit 14 that is used to measure surge tank 25 internal pressures.
In the present embodiment; Said natural qi exhaustion liquid desulfurizer in use; When the liquid on the liquid collecting plate in said knockout drum and the said coalescence jar was higher than said inverted u-shaped pipe overhead height, liquid got into the exhaust chamber in said knockout drum and the said coalescence jar with the flow velocity of 60g/min respectively through the inverted u-shaped pipe; After natural gas via surge tank after said knockout drum and the institute's coalescence jar separating treatment 23 and surge tank 25 buffered, get into thionizer again and carry out the desulfurization processing.
In the foregoing description, the rated pressure of natural-gas desulfurizer is 6MPa, and the flow velocity of Sweet natural gas in natural-gas desulfurizer is 6480m
3/ h.
The inner content liquid of Sweet natural gas is 4.5g/m when getting into natural qi exhaustion liquid desulfurizer
3, when flow rate of liquid is 30g/min in the exhaust chamber, be 0.27g/m through the content that takes off liquid in the Sweet natural gas of liquid desulfurization processing back
3Can know from above-mentioned data,, can the content of liquid in the Sweet natural gas be reduced greatly, decrease by 94% through the described natural qi exhaustion liquid desulfurizer of the utility model.Though the discharge of final liquid need be through the Sweet natural gas after taking off the liquid desulfurization with its atomizing and carry discharge in the utility model; But because the flow velocity that the liquid after gas-liquid separator or the separation of coarse separation jar gets in the exhaust chamber is very low; The amount of discharge opeing intracavity liquid seldom in institute's unit time; So through the Sweet natural gas behind the exhaust chamber, the amount of the liquid that is atomized that it contains seldom can not impact the quality of taking off the liquid desulphurised natural gas in the unit time.Can find out significantly also that from above-mentioned data the content that carries liquid in the Sweet natural gas after liquid is discharged also has only 0.27g/m
3
The inner content liquid of Sweet natural gas is 4.5g/m when getting into natural qi exhaustion liquid desulfurizer
3, when flow rate of liquid is 60g/min in the exhaust chamber, be 0.55g/m through the content that takes off liquid in the Sweet natural gas of liquid desulfurization processing back
3Can know from above-mentioned data,, can the content of liquid in the Sweet natural gas be reduced greatly, decrease by 87.8% through the described natural qi exhaustion liquid desulfurizer of the utility model.Though the discharge of final liquid need be through the Sweet natural gas after taking off the liquid desulfurization with its atomizing and carry discharge in the utility model; But because the flow velocity that the liquid after gas-liquid separator or the separation of coarse separation jar gets in the exhaust chamber is very low; The amount of discharge opeing intracavity liquid seldom in institute's unit time; So through the Sweet natural gas behind the exhaust chamber, the amount of the liquid that is atomized that it contains seldom can not impact the quality of taking off the liquid desulphurised natural gas in the unit time.Can find out significantly also that from above-mentioned data the content that carries liquid in the Sweet natural gas after liquid is discharged also has only 0.55g/m
3
The inner content liquid of Sweet natural gas is 4.5g/m when getting into natural qi exhaustion liquid desulfurizer
3, when flow rate of liquid is 100g/min in the exhaust chamber, be 0.92g/m through the content that takes off liquid in the Sweet natural gas of liquid desulfurization processing back
3Can know from above-mentioned data,, can the content of liquid in the Sweet natural gas be reduced greatly, decrease by 79.5% through the described natural qi exhaustion liquid desulfurizer of the utility model.Though the discharge of final liquid need be through the Sweet natural gas after taking off the liquid desulfurization with its atomizing and carry discharge in the utility model; But because the flow velocity that the liquid after gas-liquid separator or the separation of coarse separation jar gets in the exhaust chamber is very low; The amount of discharge opeing intracavity liquid seldom in institute's unit time; So through the Sweet natural gas behind the exhaust chamber, the amount of the liquid that is atomized that it contains seldom can not impact the quality of taking off the liquid desulphurised natural gas in the unit time.Can find out significantly also that from above-mentioned data the content that carries liquid in the Sweet natural gas after liquid is discharged also has only 0.92g/m
3
Though the utility model has carried out detailed elaboration through above-mentioned specific embodiment; But; Any form that does not exceed the claim protection domain that will be appreciated by those skilled in the art that on this basis to be made and the variation of details all belong to the claimed scope of the utility model.
Claims (10)
1. natural qi exhaustion liquid desulfurizer; Comprise knockout drum (1); In said knockout drum (1), be provided with gas-liquid separator (2); Said gas-liquid separator (2) is divided into collection chamber and liquid collecting room with the internal space of said knockout drum (1), and said collection chamber is positioned at the top of said gas-liquid separator (2), and said liquid collecting room is positioned at the bottom of said gas-liquid separator (2);
Said knockout drum (1) is provided with the first Sweet natural gas import (6), and the said first Sweet natural gas import (6) is communicated with said gas-liquid separator (2); Be provided with first gas outlet (7) at the top of said knockout drum (1), be provided with liquid exit in the bottom of said knockout drum (1);
Also comprise sweetener, the gas feed of said sweetener is connected with said first gas outlet (7);
It is characterized in that,
In said liquid collecting room, be provided with liquid collecting plate (4), said liquid collecting plate (4) is divided into top liquid collecting cavity and lower bank sap cavity with said liquid collecting room;
In said liquid collecting cavity, be provided with inverted u-shaped pipe (3), an end of said inverted u-shaped pipe (3) places the top of liquid collecting plate (4), and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate (4) and extends in the said exhaust chamber;
Said inverted u-shaped pipe (3) top also is provided with the vertical pipeline (16) with U type pipe internal communication, and the top of said vertical pipeline (16) is positioned at the top of said liquid collecting cavity liquid level;
The sidewall of said knockout drum (1) is provided with the desulphurised natural gas import (10) that is communicated with said exhaust chamber, and said desulphurised natural gas import (10) is connected with the pneumatic outlet of said sweetener.
2. according to the said natural qi exhaustion liquid desulfurizer of claim 1, it is characterized in that said gas-liquid separator (2) is the sub-gas-liquid separator of eddy flow.
3. according to claim 1 or 2 said natural qi exhaustion liquid desulfurizers; It is characterized in that; Also be provided with coalescence jar (18); The second Sweet natural gas import (19) that is provided with on first gas outlet (7) of said knockout drum (1) and coalescence jar (18) sidewall is connected, and the coalescence inner core (20) that is provided with in the said second Sweet natural gas import (19) and the said coalescence jar (18) is connected; Be provided with second gas outlet (21) at said coalescence jar (18) sidewall or top, said second gas outlet (21) is connected with the gas feed of said sweetener; Said coalescence jar (18) bottom is provided with liquid exit.
4. according to the said natural qi exhaustion liquid desulfurizer of claim 3; It is characterized in that; In said coalescence jar (18) inside; The bottom that is positioned at said coalescence jar (18) is provided with liquid collecting plate (4), and said liquid collecting plate (4) is divided into top liquid collecting cavity and lower bank sap cavity with the liquid collecting space of said coalescence jar (18) bottom; In said liquid collecting cavity, be provided with inverted u-shaped pipe (3), an end of said inverted u-shaped pipe (3) places the top of liquid collecting plate (4), and is positioned at the below of liquid collecting cavity liquid level, and the other end runs through said liquid collecting plate (4) and extends in the said exhaust chamber; Said inverted u-shaped pipe (3) top also is provided with the vertical pipeline (16) with U type pipe internal communication, and the top of said vertical pipeline (16) is positioned at the top of said liquid collecting cavity liquid level.
5. according to claim 1 or 2 or 4 said natural qi exhaustion liquid desulfurizers, it is characterized in that the bore of said inverted u-shaped pipe (3) is 1 ~ 6mm.
6. according to the said natural qi exhaustion liquid desulfurizer of claim 5, it is characterized in that the bore of said inverted u-shaped pipe (3) is 1.5 ~ 3mm.
7. according to claim 1 or 2 or 4 or 6 said natural qi exhaustion liquid desulfurizers, it is characterized in that the end that said inverted u-shaped pipe (3) extends in the said exhaust chamber is provided with trap (15).
8. gas-liquid separation device according to claim 7 is characterized in that, said liquid collecting plate (4) is obliquely installed, and angle of inclination a is 10 ~ 15 °.
9. according to claim 1 or 2 or 4 or 6 or 8 said natural qi exhaustion liquid desulfurizers; It is characterized in that; Also be provided with the connecting pipeline (11) that is used to be communicated with said liquid collecting cavity and said exhaust chamber, said connecting pipeline (11) is provided with and is used to control the valve that said connecting pipeline (11) opens and closes; Said liquid collecting plate (4) top is provided with the slag-drip opening that is used to discharge solid impurity on the liquid collecting plate.
10. according to the said natural qi exhaustion liquid desulfurizer of claim 9; It is characterized in that; Between said coalescence jar (18) and said sweetener, also be provided with at least one surge tank (23); Second gas outlet (21) of said coalescence jar (18) is gone up the Sweet natural gas import that is provided with surge tank (23) and is connected, and the gas outlet of said surge tank (23) is connected with said sweetener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228065 CN202576374U (en) | 2012-05-18 | 2012-05-18 | Natural gas liquid removing and desulfurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228065 CN202576374U (en) | 2012-05-18 | 2012-05-18 | Natural gas liquid removing and desulfurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576374U true CN202576374U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220228065 Withdrawn - After Issue CN202576374U (en) | 2012-05-18 | 2012-05-18 | Natural gas liquid removing and desulfurizing device |
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| Country | Link |
|---|---|
| CN (1) | CN202576374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421564A (en) * | 2012-05-18 | 2013-12-04 | 北京三聚环保新材料股份有限公司 | Natural gas desulfuration and liquid-removing device and desulfuration technology thereof |
-
2012
- 2012-05-18 CN CN 201220228065 patent/CN202576374U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421564A (en) * | 2012-05-18 | 2013-12-04 | 北京三聚环保新材料股份有限公司 | Natural gas desulfuration and liquid-removing device and desulfuration technology thereof |
| CN103421564B (en) * | 2012-05-18 | 2015-10-14 | 北京三聚环保新材料股份有限公司 | A kind of natural qi exhaustion liquid desulfurizer and sulfur removal technology thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20151014 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |