CN203944160U - A kind of online degasser of pipeline fluid - Google Patents
A kind of online degasser of pipeline fluid Download PDFInfo
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- CN203944160U CN203944160U CN201420167211.XU CN201420167211U CN203944160U CN 203944160 U CN203944160 U CN 203944160U CN 201420167211 U CN201420167211 U CN 201420167211U CN 203944160 U CN203944160 U CN 203944160U
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- top cap
- guidance device
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Abstract
The utility model relates to a kind of online degasser of pipeline fluid, comprises that equipment such as importing and exporting flange, spiral stream guidance device, umbrella top cap, venturi playpipe, gas diversion tube, minute flow container and tapping valve forms.Device design of the present utility model is ingenious, volume is small and exquisite, can be directly connected in pipeline, and the conveying of gassiness fluid is played to energy-saving and cost-reducing effect, can be widely used in each fluid delivery process of petrochemical industry.
Description
Technical field
The utility model relates to the online degasser of a kind of pipeline fluid, relates in particular to a kind ofly to utilize centrifugal force and venturi to spray flash distillation effect pipeline fluid is carried out to online degasser.
Background technology
In industries such as petrochemical industry, Coal Chemical Industry, food, water treatment, oil recoveries, have the process of a large amount of liquid degassings, efficient, economic Degassing Technology plays an important role to efficient, the safety of device and long-term operation.And pipeline is as the carrier of carrying fluid transport, liquid in course of conveying with pressure due to pipeline pressure drop (as elbow, portal frame, convergent flaring tube coupling) cause liquid in solution gas separate out, can produce the problems such as vapour lock, local corrosion, become a problem of fluid line course of conveying.
At present, the major technique of liquid degassing is divided into physics and two kinds of modes of chemistry, to be Henry's law (in water the solubility of gas and this gas of solution surface be divided into direct ratio) equal to form the summation of the dividing potential drop of this mist with the stagnation pressure of Dalton's law (of partial pressures) gas on the principle basis of physical method, in mist the dividing potential drop of various components again the molar fraction shared to it be directly proportional), by changing dividing potential drop and gas component content and then removing depressing dissolved gas in this minute in liquid, as technology such as blowing-type, vacuum-pumping type, film separate types.Chemical formula is mainly in liquid, to add sorbing material, depresses reacting of solution gas in liquid by sorbing material and this minute, and plays degassed object.Because needing air blast, vavuum pump and degassing tower (tank) to be used in combination just, blowing-type, vacuum-pumping type can reach degassed object, floor space is large, running cost is relatively high, and the scope of application is normal pressure or low pressure operating mode substantially, has certain application limitation; Film separation be inner external differential gas can be by film liquid can not be undertaken by the principle of film degassedly, be not suitable for containing solid impurity and mesohigh liquid degassing process.In recent years along with the continuous progress of science and technology, also occurred adopting the ultrasonic cyclone technique that involves to carry out degassed method, ultrasonic technology utilizes the cavitation of ultrasonic oscillation, diameter and the rate of climb of the microbubble in fluid are constantly increased, finally rise to liquid level, from exhaust outlet, discharge, thereby eliminated the micro-bubble existing in fluid; Cyclone technique utilizes liquid gas two-phase density contrast in centrifugal field, to realize removing of minimum gas in liquid.
Method based on above, for the liquid of gassiness, carry at present, employing adopts the degassed rear recycling pump of step-down that fluid is increased to inlet pipe road to liquid and carries, and the degassed repressurize of step-down is carried again after carrying a segment distance, the method exists that energy consumption is large, during-operation service cost is high and take up an area the problems such as large.And the also most quick Degassing Technology based on realizing liquid after step-down of the method for studying, as eddy flow Degassing Technology.This technology is to be applied to and mesohigh degasification process degassed containing solid-liquid, as oil extraction in oil field process crude oil eddy flow takes off husky degassed three phase separator and adopts certain structure-reinforced eddy flow degasifying effect, as adopt back taper structure the (Zhang Yujie such as to be optimized to eddy flow degasser structure, Jiang Minghu, Zhao Lixin etc. the flow field analysis of three phase separation cyclone and structure optimization based on CFD. chemical machinery .2010; Liu Xiaomin, Jiang Minghu, Zhao Lixin etc. the development of gas-liquid cyclone separation device and feasibility test. fluid machinery .2004; Wang Hanlun, often levies, Xu Lei etc. degassed desanding Integral cyclone device pressure characteristic and stalling characteristic research. and chemical equipment technology .2010; Jiang Minghu, Han Long, Zhao Lixin etc. internal cone type three-phase cyclone separator Separate Efficiency Study. chemical machinery .2011).Application number is that 201310036308.7 patent discloses the degassed method and apparatus of a kind of acid water, what adopt is that the degassed core pipe of the built-in many eddy flows of equipment is realized removing of acidic liquid, complex structure and equipment volume are larger, are not suitable for the online degasification process fast of pipeline.Application number is that 201310037577.5 patents disclose a kind of device that utilizes eddy flow or centrifugal field and the coupling of barometric gradient field to carry out liquid degassing, but this equipment only can be applied to the degassed researcher of the degree of depth of liquid to be pointed out, this technical equipment is applied under the sparkling applying working condition of micro-amounts of liquids, applying working condition when inapplicable air content is larger is mainly used in the concentrated advanced treating of liquid, is not also suitable for the degassed fast online of pipeline fluid.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of and utilizes centrifugal force and venturi injection flash distillation effect to carry out online rapidly and efficiently degasser to pipeline fluid.Concrete technical scheme is as follows:
An online degasser for pipeline fluid, described online degasser comprises that suction flange, outlet(discharge) flange, shell, one-level spiral stream guidance device, one-level gas diversion tube, one-level umbrella top cap, venturi-type eductors, higher level's disengagement chamber, secondary gas mozzle, secondary umbrella top cap, minute flow container and tapping valve form;
Described suction flange is arranged on outside one end of described shell, and described outlet(discharge) flange is arranged on the outside other end of described shell;
Described one-level spiral stream guidance device, one-level gas diversion tube, one-level umbrella top cap, venturi-type eductors, higher level's disengagement chamber, secondary gas mozzle, secondary umbrella top cap are placed in described enclosure;
Described one-level gas diversion tube is installed on the center of described one-level spiral stream guidance device, the length of going deep into the described one-level gas diversion tube of described one-level spiral stream guidance device is pipe diameter 0.5～2 times;
Described one-level spiral stream guidance device is connected by described one-level gas diversion tube with described minute flow container;
Described venturi-type eductors has deuterostrophies air deflector, and described secondary gas mozzle runs through the center of described deuterostrophies air deflector, and expose at described deuterostrophies air deflector two ends equal in length of described secondary gas mozzle or not etc.;
Described one-level umbrella top cap is placed on described secondary gas mozzle, and with the distance of described one-level gas diversion tube be pipe diameter 0.3～1.8 times;
Described venturi-type eductors is connected by central airway with described higher level's disengagement chamber, and described higher level's disengagement chamber is connected by described secondary gas mozzle with described minute flow container;
Described higher level's disengagement chamber is the cavity between described one-level spiral stream guidance device and described deuterostrophies air deflector;
Described tapping valve is positioned at the outlet bottom of described minute flow container.
Described venturi-type eductors has import converging transition, and described import converging transition is the degassed liquid outlet section of one-level.
Described deuterostrophies air deflector is installed on trunnion or the terminal position of described venturi-type eductors.
Described one-level gas diversion tube and described secondary gas mozzle are set to contrary with liquid flow direction or identical.
The inner edge wall of described one-level umbrella top cap and described shell forms annular space, and the area of described annular space is 1～3 times of circulation area of described one-level spiral stream guidance device; The area of the annular space that the inner edge wall of described secondary umbrella top cap and described shell forms is 1～3 times of circulation area of described deuterostrophies air deflector.
The center of described one-level gas diversion tube is provided with vortex breaker, to reduce gas phase the carrying secretly liquid that rotatablely move.
Utilize the online degasser of above-mentioned pipeline fluid to carry out online degassed step, be exemplified below;
(1) by one-level spiral stream guidance device, changing the rectilinear motion of described pipeline fluid into rotating flow moves, under the effect of centrifugal force, realize the quick separation of entrained liquids in fluid, isolated the first gas phase and the first micro-liquid phase enter a minute flow container by one-level gas diversion tube, and remaining liquid phase is gone next step;
(2) liquid phase of step (1) enters the venturi-type eductors that trunnion place is provided with deuterostrophies air deflector, utilize micro-negative pressure of the outlet area formation of described venturi-type eductors to realize separating out of bubble and growing up of existing microbubble in described liquid phase, utilize centrifugal power after the strengthening of described deuterostrophies air deflector to realize the quick separation of liquid gas simultaneously, isolated the second gas phase and the second micro-liquid phase enter described minute flow container by secondary gas mozzle after central airway enters higher level's disengagement chamber, and scavenging solution exports let-off gear(stand) mutually by scavenging solution;
(3) the clean gas phase that the gas phase in described minute flow container and micro-liquid phase obtain after separation is discharged from the top of described minute flow container, and liquid enters described purification liquid-phase outlet by the unidirectional tapping valve in bottom.
Described gas phase is the summation of first gas phase of collecting by step (1) and second gas phase of collecting by step (2), and described micro-liquid phase is the summation of the first micro-liquid phase of collecting by step (1) and the second micro-liquid phase of collecting by step (2).
Gas volume percentage composition in described pipeline fluid is 0～50% and is not 0, and fluid pressure is 0.05～100MPa.
Through step (1) and the degassed pressure loss of step (2), be 0.005～0.1MPa.
After described one-level spiral stream guidance device and described deuterostrophies air deflector, the linear velocity of liquid is 3～30m/s.
The beneficial effects of the utility model are: this technology is built in the centrifugal degassed centrifugation Degassing Technology of being combined with injection flash distillation of rotating flow in pipeline, and apply by the optimum organization of device structure and associated components, realized pipeline fluid efficiently, degassed fast, and comparing other degassing equipment has the clear superiority that installation is simple, volume is little, can be widely used in pipeline fluid degasification process.
Accompanying drawing explanation
Fig. 1 is the structural representation of online degasser of the present utility model;
Fig. 2 is the annular space schematic diagram that the inner edge wall of umbrella top cap and shell forms;
Fig. 3 is the applicating flow chart of the degasser of prior art;
Fig. 4 is the applicating flow chart of online degasser of the present utility model.
Symbol description:
1 entrance sleeve flange; 2 one-level wireways; 3 vortex breakers; 4 one-level spiral stream guidance devices;
5 one-level umbrella top caps; 6 venturi-type eductors; 7 deuterostrophies air deflectors;
8 secondary wireways; 9 secondary umbrella top caps; 10 shells; 11 discharge connection flanges;
12 one-way guide flow valves; 13 minutes flow containers; 14 desulfurizing towers; 15 rich solution degassing tanks;
16 rich solution booster pump A/B; 17,22 conveyance conduits; 18,25 rich solutions are concentrated regenerating unit;
19 gases reclaim; 20 desulfurizing towers; 21, the online degasser of 23 tubular type amine liquid;
24 gases reclaim.
The specific embodiment
Below in conjunction with embodiment, further illustrate content of the present utility model, but these embodiment do not limit protection domain of the present utility model.
Embodiment 1
As shown in Figure 1, the online degasser of the present embodiment comprises entrance sleeve flange 1, one-level wireway 2, vortex breaker 3, one-level spiral stream guidance device 4, one-level umbrella top cap 5, venturi-type eductors 6, deuterostrophies air deflector 7, secondary wireway 8, secondary umbrella top cap 9, shell 10, discharge connection flange 11, one-way guide flow valve 12, minute flow container 13.
Wherein, suction flange 1 is arranged on outside one end of shell 10, and outlet(discharge) flange 11 is arranged on the outside other end of shell 10;
One-level spiral stream guidance device 4, one-level wireway 2, one-level umbrella top cap 5, venturi-type eductors 6, higher level's disengagement chamber (cavity between one-level spiral stream guidance device 4 and deuterostrophies air deflector 7), secondary wireway 8, secondary umbrella top cap 9 are placed in the inside of shell 10;
One-level wireway 2 is installed on the center of one-level spiral stream guidance device 4, the length of going deep into the one-level wireway 2 of one-level spiral stream guidance device 4 is pipe diameter 0.5～2 times;
One-level spiral stream guidance device 4 is connected by one-level wireway 2 with a minute flow container 13;
Venturi-type eductors 6 has deuterostrophies air deflector 7, and secondary wireway 8 runs through the center of deuterostrophies air deflector 7, and expose at deuterostrophies air deflector 7 two ends equal in length of secondary wireway 8 or not etc.;
One-level umbrella top cap 5 is placed on secondary wireway 8, and with the distance of one-level wireway 2 be pipe diameter 0.3～1.8 times;
Venturi-type eductors 6 is connected by central airway with higher level's disengagement chamber, and higher level's disengagement chamber is connected by secondary wireway 8 with a minute flow container 13;
One-way guide flow valve 12 is positioned at the outlet bottom of minute flow container 13.
Venturi-type eductors 6 has import converging transition, and import converging transition is the degassed liquid outlet section of one-level.
Deuterostrophies air deflector 7 is installed on trunnion or the terminal position of venturi-type eductors 6.
One-level wireway 2 and secondary wireway are set to contrary with liquid flow direction or identical.
The annular space that one-level umbrella top cap 5 and outside wall form (as shown in Figure 2, the part that dashed middle line surrounds is the projection of umbrella crown, annulus between outside solid line and dashed middle line is the annular space of the inner edge wall formation of umbrella top cap and shell) area is 1～3 times of circulation area of one-level spiral stream guidance device 4, the area between secondary umbrella top cap 9 and outside wall spacing is 1～3 times of circulation area of deuterostrophies air deflector 7.
The center of one-level wireway 2 is provided with vortex breaker 3, to reduce gas phase the carrying secretly liquid that rotatablely move.
It is 50t/h that the rich amine liquid that certain oil plant hydrogenation plant desulfurizing tower produces is sent flow outside, and pressure is 0.6～0.8MPa, and temperature is 40～60 ℃, and oil content is 150～500mg/L.In order to overcome rich amine liquid, send the problems such as the pipeline local corrosion that causes due to gas sucking-offs such as pipeline pressure drop dissolved hydrogen sulfide, lighter hydrocarbons in process, vapour lock outside, and pipeline is climbed the vapour lock of a plurality of portal frame processes in sending process outside, therefore former flow process is that first this richness amine liquid to be carried out to step-down degassed, and then by the supercharging of rich amine liquid pump, delivers to rich solution and concentrate regenerating unit.To this acid water, to send the row that advances outside centrifugal degassed, the acid water after degassed is delivered to acidic water stripping device outward, as shown in Figure 3.
On the basis of above-mentioned existing procedure, the present embodiment has been cancelled original degassing tank, rich amine liquid booster pump, the install pipeline that exports out at desulfurizing tower rich solution an online degasser of tubular type rich solution, at hydrogenation plant and rich solution, concentrate the centre of regenerating unit to be provided with an online degasser of tubular type rich solution, the online degasser of described tubular type rich solution has foregoing structure, met the requirement that rich solution is sent outside, flow process as shown in Figure 4:
(1) by one-level spiral stream guidance device, changing the rectilinear motion of pipeline fluid into rotating flow moves, under the effect of centrifugal force, realize the quick separation of entrained liquids in fluid, isolated the first gas phase and the first micro-liquid phase enter a minute flow container by one-level gas diversion tube, and remaining liquid phase is gone next step;
(2) liquid phase of step (1) enters venturi-type eductors, utilize micro-negative pressure of the outlet area formation of venturi-type eductors to realize separating out of bubble and growing up of existing microbubble in liquid phase, utilize centrifugal power after deuterostrophies air deflector strengthening to realize the quick separation of liquid gas simultaneously, isolated the second gas phase and the second micro-liquid phase enter a minute flow container by secondary gas mozzle after central airway enters higher level's disengagement chamber, and scavenging solution exports let-off gear(stand) mutually by scavenging solution;
(3) divide the clean gas phase that gas phase in flow container and micro-liquid phase obtain after separation to discharge from the top of minute flow container, liquid enters purification liquid-phase outlet by the unidirectional tapping valve in bottom.
Gas volume percentage composition in pipeline fluid is 0～50% and is not 0, and fluid pressure is 0.05～100MPa.
Through step (1) and the degassed pressure loss of step (2), be 0.005～0.1MPa.
After one-level spiral stream guidance device and deuterostrophies air deflector, the linear velocity of liquid is 3～30m/s.
Implementation result: adopt this technology to realize with the gas removal recovery of original flow process and send effect outside with rich solution problem, compare with former flow process:
Cancel degassing tank, reduced floor space and raw-material investment;
Cancelled 2 of rich solution booster pumps, reduced investment and reduced plant maintenance operating cost and personnel cost, and having eliminated the safety problem that motivation tool equipment brings.
Be only the preferred embodiment of utility model in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modify, all should be technology category of the present utility model.
Claims (6)
1. the online degasser of a pipeline fluid, it is characterized in that, described online degasser comprises that suction flange, outlet(discharge) flange, shell, one-level spiral stream guidance device, one-level gas diversion tube, one-level umbrella top cap, venturi-type eductors, higher level's disengagement chamber, secondary gas mozzle, secondary umbrella top cap, minute flow container and tapping valve form;
Described suction flange is arranged on outside one end of described shell, and described outlet(discharge) flange is arranged on the outside other end of described shell;
Described one-level spiral stream guidance device, one-level gas diversion tube, one-level umbrella top cap, venturi-type eductors, higher level's disengagement chamber, secondary gas mozzle, secondary umbrella top cap are placed in described enclosure;
Described one-level gas diversion tube is installed on the center of described one-level spiral stream guidance device, the length of going deep into the described one-level gas diversion tube of described one-level spiral stream guidance device is pipe diameter 0.5～2 times;
Described one-level spiral stream guidance device is connected by described one-level gas diversion tube with described minute flow container;
Described venturi-type eductors has deuterostrophies air deflector, and described secondary gas mozzle runs through the center of described deuterostrophies air deflector, and expose at described deuterostrophies air deflector two ends equal in length of described secondary gas mozzle or not etc.;
Described one-level umbrella top cap is placed on described secondary gas mozzle, and with the distance of described one-level gas diversion tube be pipe diameter 0.3～1.8 times;
Described venturi-type eductors is connected by central airway with described higher level's disengagement chamber, and described higher level's disengagement chamber is connected by described secondary gas mozzle with described minute flow container;
Described higher level's disengagement chamber is the cavity between described one-level spiral stream guidance device and described deuterostrophies air deflector;
Described tapping valve is positioned at the outlet bottom of described minute flow container.
2. online degasser according to claim 1, is characterized in that, described venturi-type eductors has import converging transition, and described import converging transition is the degassed liquid outlet section of one-level.
3. online degasser according to claim 1, is characterized in that, described deuterostrophies air deflector is installed on trunnion or the terminal position of described venturi-type eductors.
4. online degasser according to claim 1, is characterized in that, described one-level gas diversion tube and described secondary gas mozzle are set to contrary with liquid flow direction or identical.
5. online degasser according to claim 1, is characterized in that, the inner edge wall of described one-level umbrella top cap and described shell forms annular space, and the area of described annular space is 1～3 times of circulation area of described one-level spiral stream guidance device; The area of the annular space that the inner edge wall of described secondary umbrella top cap and described shell forms is 1～3 times of circulation area of described deuterostrophies air deflector.
6. online degasser according to claim 1, is characterized in that, the center of described one-level gas diversion tube is provided with vortex breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167211.XU CN203944160U (en) | 2014-04-08 | 2014-04-08 | A kind of online degasser of pipeline fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167211.XU CN203944160U (en) | 2014-04-08 | 2014-04-08 | A kind of online degasser of pipeline fluid |
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| CN203944160U true CN203944160U (en) | 2014-11-19 |
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| CN201420167211.XU Withdrawn - After Issue CN203944160U (en) | 2014-04-08 | 2014-04-08 | A kind of online degasser of pipeline fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877752A (en) * | 2014-04-08 | 2014-06-25 | 华东理工大学 | Online degassing method and device of pipeline fluid |
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2014
- 2014-04-08 CN CN201420167211.XU patent/CN203944160U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877752A (en) * | 2014-04-08 | 2014-06-25 | 华东理工大学 | Online degassing method and device of pipeline fluid |
| CN103877752B (en) * | 2014-04-08 | 2015-12-09 | 华东理工大学 | A kind of online degas method of pipeline fluid and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20151209 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |