CN209508175U - A kind of horizontal ingress filtering separator suitable for high-pressure natural gas field - Google Patents
A kind of horizontal ingress filtering separator suitable for high-pressure natural gas field Download PDFInfo
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- CN209508175U CN209508175U CN201822167979.8U CN201822167979U CN209508175U CN 209508175 U CN209508175 U CN 209508175U CN 201822167979 U CN201822167979 U CN 201822167979U CN 209508175 U CN209508175 U CN 209508175U
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- ingress filtering
- filtering separator
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Abstract
The utility model relates to ingress filtering separator fields, disclose a kind of ingress filtering separator, including ingress filtering separator main body and surge tank, ingress filtering separator main body is installed aloft, surge tank installation site relative low points, at the top of surge tank and ingress filtering separator main body disengagement chamber passes through the progress pressure balance of pressure stabilizing pipeline, after the filtering chamber of ingress filtering separator main body and split cavity liquid phase come out from respective outlet at bottom pipeline respectively, by pressure difference and gravity, first vertical certain distance down, then individually enter surge tank again, realize that fluid-tight acts on using U-tube principle and difference in height.The ingress filtering separator comes when being not only able to satisfy natural gas low processing capacity in the less situation of liquid measure, meet the needs of natural gas processing technique, and it is able to satisfy the requirement of the Liquid level adjusting valve drain under High Pressure Difference, reduce natural gas gas string problem, suitable for high-pressure natural gas field, have the advantages that convenient for safeguarding, safe and reliable, environmentally protective.
Description
Technical field
The utility model relates in oil and gas development technique field, the gas-liquid separation being dehydrated to natural gas is filled
It sets, more particularly in natural gas dehydration process, especially when handling high-pressure natural gas, can guarantee that bottoms level is adjusted
Valve is under the conditions of High Pressure Difference, a kind of horizontal ingress filtering separator with good regulating effect.
Background technique
In offshore natural gas field dewatering process commonplace at present, natural gas is after supercooling into ingress filtering point
From device.Solid impurity in moisture is filtered separation first by the horizontal ingress filtering separator (such as Fig. 1) of tradition, is then being divided
From coarse separation is carried out in chamber, heavy hydrocarbon component, free water droplet are separated with natural gas, under finally natural gas after separation enters
It is dehydrated in trip triethylene glycol contact tower.The substance separated in ingress filtering separator respectively enters two and collects chamber
(filter chamber and disengagement chamber) is controlled by the Liquid level adjusting valve of 2 liquid collecting chambers, carries out recycling into high pressure flare liquid separation tank and follow
Ring processing.In traditional device, respectively there are a liquidometer and the low low switch of liquid level in filter chamber liquid collecting room and disengagement chamber liquid collecting room,
Disengagement chamber liquid collecting room is additionally provided with the high Gao Kaiguan of liquid level simultaneously, and safeguards system operates normally.
There are following deficiencies for traditional design:
Firstly, Liquid level adjusting valve fails, causes a large amount of natural gas strings to high pressure flare system, increase greenhouse gas emission.
Because the upstream of the Liquid level adjusting valve of ingress filtering separator is the high-pressure natural gas of up to 10MPa, and downstream is then normal pressure
High pressure flare liquid separation tank, the pressure difference that control valve is born is more than 100 times of atmospheric pressures, while containing corrosive substance in liquid, right
The spool of high pressure Liquid level adjusting valve has very strong erosion and corrosiveness, causes regulation valve core erosion, reduces the close of regulating valve
Feng Xing causes spool to be broken when serious, and regulating valve is made to lose adjustment effect.
Secondly, pipeline falls into the automatic de-plugging of icing frozen block-- frozen block circulation, and tracer line larger vibration, spiral shell is easily caused
Bolt absent-mindedness and the deformation of pipeline stress fatigue cause natural gas leaking.Because of Liquid level adjusting valve High Pressure Difference throttling action, control valve downstream
Line temperature sharply declines, when valves leakage to a certain extent when, line temperature continues to decline, and eventually leads to and generates water in pipeline
Close object, blocking pipeline；Then under amount of heat exchange, line temperature rises, and the automatic de-plugging of pipeline, a large amount of natural gases pass through control
Valve processed causes pipeline judder.
Finally, instrument signal is isolated for a long time, safeguard protection failure.The failure of the Liquid level adjusting valve of ingress filtering separator,
So that filtering and isolated liquid collecting chamber is lost fluid-tight, needs to bypass height of liquid level shutdown logical signal, lead to the automation of system
Lower with security level, if emergency occurs, cannot timely automated shutdown isolation, there are some potential safety problems, reduction works
Process system safety.
Utility model content
The technical problem to be solved by the present invention is in view of the above-mentioned drawbacks in the prior art, provide a kind of be applicable in
Horizontal ingress filtering separator in high-pressure natural gas field.
The utility model solves thinking used by its technical problem: filter chamber liquid collecting room and disengagement chamber liquid collecting room close two
For one (referred to as surge tank, with hereafter identical), and separated with ingress filtering separator main body；Novel ingress filtering separator main body
Aloft, surge tank installation site relative low points, surge tank top and ingress filtering separator main body disengagement chamber pass through surely for installation
Pressure pipeline carries out pressure balance, and the filtering chamber of ingress filtering separator main body and split cavity liquid phase go out from respective bottom respectively
After mouth pipeline comes out, by pressure difference and gravity, first vertical certain distance down, then individually enters surge tank again,
It realizes that fluid-tight acts on using U-tube principle and the difference in height of ingress filtering separator main body and surge tank, filter chamber can be made
Gas string does not occur for room and split cavity.Surge tank liquid level is controlled by the Liquid level adjusting valve of its bottom.
Have in horizontal ingress filtering separator filtering chamber and split cavity liquid-phase outlet pipeline double isolating valves and
Check valve.
According to above-mentioned thinking, the technical side of the novel horizontal ingress filtering separator suitable for high-pressure natural gas field
Case is as follows:
The horizontal ingress filtering separator includes ingress filtering separator main body, and ingress filtering separator main body includes
Filter chamber and disengagement chamber, ingress filtering separator main body are equipped with the filter chamber outlet being connected to filter chamber and connect with disengagement chamber
Logical disengagement chamber outlet, further includes surge tank, and the position of ingress filtering separator main body is higher than surge tank；
Filter chamber outlet and disengagement chamber outlet pass through filter chamber outlet line and disengagement chamber outlet line and surge tank respectively
Connection, filter chamber outlet at bottom are higher than the communicating position of filter chamber outlet line and surge tank, and disengagement chamber outlet at bottom, which is higher than, to be divided
Communicating position from chamber outlet line and surge tank, filter chamber outlet line and disengagement chamber outlet line are exported from filter chamber respectively
It first walks downward with the junction of disengagement chamber outlet, then laterally walks to be connected to surge tank, so as to go out from ingress filtering separator main body
The liquid for entering surge tank by filter chamber outlet line and disengagement chamber pipeline come forms fluid-tight；
Surge tank is equipped with for the surge tank outlet line with external high pressure flare system connectivity, surge tank outlet
Line is equipped with Liquid level adjusting valve and manual angle valve, and surge tank is equipped with the pressure stabilizing pipeline being connected to ingress filtering separator main body,
The link position of pressure stabilizing pipeline and surge tank is higher than disengagement chamber outlet line, filter chamber outlet line and surge tank outlet line
With the link position of surge tank.
Preferably, pressure stabilizing pipeline and surge tank are connected to the top of surge tank, pressure stabilizing pipeline and ingress filtering separator master
Body is connected to the top of ingress filtering separator main body.
Preferably, filter chamber outlet line is equipped with for preventing liquid reflux to the first of ingress filtering separator main body
Check valve.
Preferably, disengagement chamber outlet line is equipped with for preventing liquid reflux to the second of ingress filtering separator main body
Check valve.
Preferably, pressure stabilizing pipeline is equipped with for preventing gas backstreaming unidirectional to the third of ingress filtering separator main body
Valve.
Preferably, filter chamber outlet line, disengagement chamber outlet line and/or pressure stabilizing pipeline are equipped with isolating valve.
Preferably, surge tank outlet line is equipped with the isolating valve in parallel with Liquid level adjusting valve.
Preferably, surge tank outlet line is equipped with the second emergency shutdown valve.
Preferably, which further includes the medium inlet being connected to filter chamber and and medium
The medium inlet pipeline for being connected to external natural Gas Cooler of entrance connection, it is tight that medium inlet pipeline is equipped with first
Anxious shut-off valve.
Implement the technical solution of the utility model, at least has below the utility model has the advantages that the horizontal ingress filtering separator
Come in the less situation of liquid measure when being not only able to satisfy natural gas low processing capacity, meets the needs of natural gas processing technique, Er Qieneng
Meet the requirement of Liquid level adjusting valve drain under High Pressure Difference, reduce natural gas gas string problem, be suitable for high-pressure natural gas field, has just
In maintenance, safe and reliable, environmentally protective advantage.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structure chart of horizontal ingress filtering separator in the prior art.
Fig. 2 is the horizontal ingress filtering separator suitable for high-pressure natural gas field in one preferred embodiment of the utility model
The structure chart of device.
Label in figure indicates: 1. ingress filtering separator main bodies, 11. filter chambers, 111. medium inlets, 12. disengagement chambers,
121. media outlet, 13. medium inlet pipelines, 131. first emergency shutdown valves, 14. filter chamber outlet lines, 141. first is single
To valve, 15. disengagement chamber outlet lines, 151. second one-way valves, 16. media outlet pipelines, 2. surge tanks, 21. pressure stabilizing pipelines,
211. third check valves, 22. surge tank outlet lines, 221. Liquid level adjusting valves, 222. angle valves, 223. second emergency shutdown valves,
3. isolating valve, 4. high pressure flare systems.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Fig. 2, the horizontal entrance suitable for high-pressure natural gas field in one preferred embodiment of the utility model
Filter separator device, including ingress filtering separator main body 1, ingress filtering separator main body 1 include filter chamber 11 and separation
Chamber 12, ingress filtering separator main body 1 are equipped with the filter chamber that be connected to filter chamber 11 and export and be connected to disengagement chamber 12
Disengagement chamber outlet, the horizontal ingress filtering separator further include surge tank 2, and the position of ingress filtering separator main body 1 is high
In surge tank 2.
Surge tank 2 is equipped with the surge tank outlet line 22 for being connected to external high pressure flare system 4, and surge tank goes out
Mouth pipeline 22 is equipped with Liquid level adjusting valve 221 and angle valve 222, and Liquid level adjusting valve 221 is located at the bottom of surge tank 2,2 liquid of surge tank
Position is controlled by the Liquid level adjusting valve of the bottom.Surge tank 2 is equipped with the pressure stabilizing being connected to ingress filtering separator main body 1
Pipeline 21, the link position of pressure stabilizing pipeline 21 and surge tank 2 be higher than disengagement chamber outlet line 15, filter chamber outlet line 14 and
The link position of surge tank outlet line 22 and surge tank 2.Wherein, angle valve 222 shuts off for being depressured, and can be manual angle valve,
It is also possible to electrically driven or Electromagnetically-operating formula angle valve, the specific structure and working principle of these angle valves are the prior art, no longer
It repeats.
Filter chamber outlet and disengagement chamber outlet by filter chamber outlet line 14 and disengagement chamber outlet line 15 and are delayed respectively
The connection of tank 2 is rushed, the position of ingress filtering separator main body 1 is higher than surge tank 2, and filter chamber outlet is made to be higher than filter chamber outlet line
14 are higher than the communicating position of disengagement chamber outlet line 15 and surge tank 2, filter with the communicating position of surge tank 2, disengagement chamber outlet
Chamber outlet line 14 and disengagement chamber outlet line 15 first walk downward from the junction that filter chamber outlet and disengagement chamber export respectively, so
It laterally walks to be connected to surge tank 2 afterwards.In this way, ingress filtering separator main body 1 filter chamber 11 and disengagement chamber 12 liquid respectively into
After entering filter chamber outlet line 14 and disengagement chamber outlet line 15, by pressure difference and gravity, first vertical certain distance down,
Then subsequently into surge tank 2, filter chamber outlet line 14, disengagement chamber outlet line 15 and surge tank 2 are equivalent to form U
Type pipe, the liquid levels etc. according to U-tube principle, in filter chamber outlet line 14, disengagement chamber outlet line 15 and surge tank 2
Height can make filter chamber 11 and disengagement chamber 12 that has channeling not occur to form fluid-tight.Wherein, in the present embodiment, ingress filtering
The filter chamber 11 and disengagement chamber 12 of separator main body 1, it is real with the filter chamber and disengagement chamber of traditional horizontal ingress filtering separator
Now filtering is the prior art, details are not described herein as the structure of separation function；In other embodiments, ingress filtering point
Filter chamber 11 and disengagement chamber 12 from device main body 1, can using existing other kinds of ingress filtering separator filter chamber and
The structure of disengagement chamber needs to make the position of ingress filtering separator main body 1 to be higher than surge tank 2, and filter chamber outlet is made to be higher than filtering
The communicating position of chamber outlet line 14 and surge tank 2, disengagement chamber outlet are higher than the connection of disengagement chamber outlet line 15 and surge tank 2
Position, setting in addition to this is as the present embodiment.
Specifically, the setting of the relative altitude of ingress filtering separator main body 1 and surge tank 2 can be as follows, surge tank 2 is set
On deck plane, surge tank 2 distance from top deck plane, 2 meters of height；1 oneself height of ingress filtering separator main body is 1 meter, top
There are 2.5 meters of height at the top of surge tank 2, the high pressure flare liquid separation tank and surge tank 2 of high pressure flare system 4 are in same deck plane.
The horizontal ingress filtering separator comes in the less situation of liquid when being not only able to satisfy natural gas low processing capacity, meets
The needs of natural gas processing technique, and it is able to satisfy the requirement of Liquid level adjusting valve drain under High Pressure Difference, reduce natural gas gas string
Problem, avoids the washed out situation of Liquid level adjusting valve 221, and Liquid level adjusting valve 221 is able to maintain good leakproofness, buffering
Tank is able to maintain fluid-tight, and pipeline will not fall into the circulation and vibration of the automatic de-plugging-frozen block of icing frozen block-.Also, relative to
Traditional technology, it is low which reduces a set of Liquid level adjusting valve, a set of liquidometer and a liquid level
Switch, reduces the maintenance and spare parts consumption amount of instrumentation.Its angle valve 222 used can reduce pressure before and after Liquid level adjusting valve
Difference extends Liquid level adjusting valve spool service life.And gas string occurs due to avoiding, so reducing natural air cooling emptying row
It puts, reduces the pollution to environment.So the horizontal ingress filtering separator is suitable for high-pressure natural gas field, has and be convenient for
Maintenance, safe and reliable, environmentally protective advantage.
Wherein, surge tank 2 is preferably vertical buffering tank 2, because its longitudinal volume is larger, is gathered in surge tank 2 convenient for liquid
Collection and formation fluid-tight.
Preferably, automatic control mode of the Liquid level adjusting valve 221 using " ON-OFF ", " ON-OFF " mould of Liquid level adjusting valve
Formula control range is big, can reduce and adjust the valve events frequency, reduces operation difficulty.
Preferably, pressure stabilizing pipeline 21 is connected to the top of surge tank 2, pressure stabilizing pipeline 21 and ingress filtering separator main body 1
It is connected to the top of ingress filtering separator main body 1.
Further, filter chamber outlet line 14 is equipped with for preventing liquid reflux to ingress filtering separator main body 1
First check valve 141.
Further, disengagement chamber outlet line 15 is equipped with for preventing liquid reflux to ingress filtering separator main body 1
Second one-way valve 151.
Further, pressure stabilizing pipeline 21 is equipped with for preventing gas backstreaming to the third list of ingress filtering separator main body 1
To valve 211.
Further, filter chamber outlet line 14, disengagement chamber outlet line 15 and/or pressure stabilizing pipeline 21 are equipped with isolating valve 3,
Surge tank outlet line 22 is equipped with the isolating valve 3 in parallel with Liquid level adjusting valve 221, when horizontal ingress filtering separator needs
When repairing, it can be blinded off a line by isolating valve 4, in order to repair.Wherein, the isolating valve 3 on above-mentioned each pipeline is specific
Ball valve, such as Fig. 2 can be used, two ball valves are used on filter chamber outlet line 14 and disengagement chamber outlet line 15, in high pressure work
Sufficient buffer action is played under the conditions of work.
Further, surge tank outlet line 22 is equipped with the second emergency shutdown valve 223.The horizontal ingress filtering separator dress
Set further includes the medium inlet 111 being connected to filter chamber 11 and being used for of being connected to medium inlet 111 and external natural gas
The medium inlet pipeline 13 of cooler connection, medium inlet pipeline 13 are equipped with the first emergency shutdown valve 131.When accident occurs
When, emergency shutdown valve quick closedown avoids the generation of accident；The specific structure and working principle of emergency shutdown valve are existing
Technology repeats no more.
The horizontal ingress filtering separator further includes the media outlet 121 being connected to disengagement chamber 12 and goes out with medium
The media outlet pipelines 16 for being connected to external contact tower of 121 connection of mouth.
When using the horizontal ingress filtering separator, the natural gas from natural Gas Cooler enters ingress filtering point
From device main body 1, the liquid assembled into disengagement chamber 12 and filter chamber 11 is gone out by disengagement chamber outlet line 15 and filter chamber respectively
Mouth pipeline 14 enters 2 bottom of surge tank, and disengagement chamber outlet line 15 and filter chamber outlet line 14 are equipped with check valve, prevent liquid
Body reflux.The liquid of surge tank 2 is discharged by the surge tank outlet line 22 of bottom.It is equipped on surge tank outlet line 22
Liquid level adjusting valve 221 controls liquid level in surge tank 2, and when liquid level reaches setting high point, Liquid level adjusting valve 221 is fully opened, tank
Interior liquid is by Liquid level adjusting valve 221, after the decompression of angle valve 222, into high pressure flare system 4；When liquid level arrival setting is low
When point, Liquid level adjusting valve 221 is completely closed, and liquid stops flowing, keeps liquid level in tank.Finally natural gas after separation enters
Dehydration (being the prior art into the technology being dehydrated in the contact tower in downstream, repeat no more) in the contact tower in downstream.
Compared with traditional technology, the advantages of horizontal ingress filtering separator of the utility model is: (1) this is horizontal
Ingress filtering separator comes when being not only able to satisfy natural gas low processing capacity in the less situation of liquid, meets natural gas processing technique
Needs, and be able to satisfy the requirement of Liquid level adjusting valve drain under High Pressure Difference, reduce natural gas gas string problem, avoid liquid level
The washed out situation of regulating valve 221, Liquid level adjusting valve 221 are able to maintain good leakproofness, and surge tank is able to maintain fluid-tight,
Pipeline will not fall into the circulation and vibration of the automatic de-plugging-frozen block of icing frozen block-；(2) a set of Liquid level adjusting valve, a set of is reduced
Liquidometer and the low low switch of a liquid level, reduce the maintenance and spare parts consumption amount of instrumentation；(3) flange connecting point is reduced,
Reduce potential risk of leakage；(4) its angle valve 222 used can reduce pressure difference before and after regulating valve, extend Liquid level adjusting valve spool
Service life；(5) it avoids entrance separator liquid phase that gas string occurs, reduces natural air cooling emptying discharge, reduce the pollution to environment.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model can have various changes, combination and variation.It is all the utility model spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should be included in the utility model scope of the claims it
It is interior.
Claims (9)
1. a kind of horizontal ingress filtering separator, including ingress filtering separator main body (1), the ingress filtering separator
Main body (1) includes filter chamber (11) and disengagement chamber (12), which is characterized in that the ingress filtering separator main body (1) is equipped with
The filter chamber outlet being connected to the filter chamber (11) and the disengagement chamber outlet being connected to the disengagement chamber (12), it is described horizontal
Ingress filtering separator further includes surge tank (2), and the position of the ingress filtering separator main body (1) is higher than the buffering
Tank (2)；
The filter chamber outlet and disengagement chamber outlet pass through filter chamber outlet line (14) and disengagement chamber outlet line respectively
(15) it is connected to the surge tank (2), the filter chamber outlet is higher than the filter chamber outlet line (14) and the surge tank
(2) communicating position, the disengagement chamber outlet are higher than the connection position of the disengagement chamber outlet line (15) and the surge tank (2)
It sets, the filter chamber outlet line (14) and the disengagement chamber outlet line (15) are respectively from filter chamber outlet and described point
Junction from chamber outlet is first walked downward, and then laterally walks to be connected to the surge tank (2), so that from the ingress filtering separator
What main body (1) came out enters the surge tank (2) by the filter chamber outlet line (14) and the disengagement chamber (12) pipeline
Liquid formed fluid-tight；
The surge tank (2) is equipped with the surge tank outlet line (22) for being connected to external high pressure flare system (4), institute
Surge tank outlet line (22) are stated equipped with Liquid level adjusting valve (221) and angle valve (222), the surge tank (2) is equipped with and institute
State the pressure stabilizing pipeline (21) of ingress filtering separator main body (1) connection, the company of the pressure stabilizing pipeline (21) and the surge tank (2)
Position is connect higher than the disengagement chamber outlet line (15), the filter chamber outlet line (14) and surge tank outlet line (22)
With the link position of the surge tank (2).
2. horizontal ingress filtering separator according to claim 1, characterized in that the pressure stabilizing pipeline (21) and institute
State the top that surge tank (2) is connected to the surge tank (2), the pressure stabilizing pipeline (21) and the ingress filtering separator main body
(1) it is connected to the top of the ingress filtering separator main body (1).
3. horizontal ingress filtering separator according to claim 1, characterized in that the filter chamber outlet line
(14) it is equipped with for preventing liquid reflux to the first check valve (141) of ingress filtering separator main body (1).
4. horizontal ingress filtering separator according to claim 1, characterized in that the disengagement chamber outlet line
(15) it is equipped with for preventing liquid reflux to the second one-way valve (151) of ingress filtering separator main body (1).
5. horizontal ingress filtering separator according to claim 1, characterized in that set on the pressure stabilizing pipeline (21)
There is the third check valve (211) for preventing gas backstreaming to the ingress filtering separator main body (1).
6. horizontal ingress filtering separator according to claim 1, characterized in that the filter chamber outlet line
(14), the disengagement chamber outlet line (15) and/or the pressure stabilizing pipeline (21) are equipped with isolating valve (3).
7. horizontal ingress filtering separator according to claim 1, characterized in that the surge tank outlet line
(22) it is equipped with the isolating valve (3) in parallel with the Liquid level adjusting valve (221).
8. horizontal ingress filtering separator according to claim 1, characterized in that the surge tank outlet line
(22) the second emergency shutdown valve (223) are equipped with.
9. horizontal ingress filtering separator according to claim 1, characterized in that including with the filter chamber (11)
The medium inlet (111) of connection and be connected to the medium inlet (111) for being connected to external natural Gas Cooler
Medium inlet pipeline (13), the medium inlet pipeline (13) be equipped with the first emergency shutdown valve (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167979.8U CN209508175U (en) | 2018-12-21 | 2018-12-21 | A kind of horizontal ingress filtering separator suitable for high-pressure natural gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167979.8U CN209508175U (en) | 2018-12-21 | 2018-12-21 | A kind of horizontal ingress filtering separator suitable for high-pressure natural gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209508175U true CN209508175U (en) | 2019-10-18 |
Family
ID=68196445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822167979.8U Active CN209508175U (en) | 2018-12-21 | 2018-12-21 | A kind of horizontal ingress filtering separator suitable for high-pressure natural gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209508175U (en) |
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2018
- 2018-12-21 CN CN201822167979.8U patent/CN209508175U/en active Active
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