CN106221726A - A kind of containing dust high-temperature oil gas wash cooling device and wash cooling method - Google Patents
A kind of containing dust high-temperature oil gas wash cooling device and wash cooling method Download PDFInfo
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- CN106221726A CN106221726A CN201610654782.XA CN201610654782A CN106221726A CN 106221726 A CN106221726 A CN 106221726A CN 201610654782 A CN201610654782 A CN 201610654782A CN 106221726 A CN106221726 A CN 106221726A
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- oil
- scrubbing tower
- temperature
- conduit
- wash cooling
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/06—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/04—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas with liquid absorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of containing dust high-temperature oil gas wash cooling device and wash cooling method, including scrubbing tower, the sidewall of described scrubbing tower connects and has washing gas ingress pipe；Being provided with grid in it is characterized in that described scrubbing tower, the inner chamber of described scrubbing tower is divided into the scrubbing section of bottom and the spray district on top by described grid；Described ingress pipe connects described scrubbing section；Being provided with spray equipment in described spray district, the entrance of described spray equipment connects out-of-bounds spray liquid pipeline；It is arranged over demister at described spray equipment in described spray district；The bottom of described scrubbing tower connects oil-drain pipe, and the top of described scrubbing tower connects light oil feed channel.Apparatus of the present invention utilize the light oil circulated sprinkling cooling high temperature coal-tar gas of coal tar Oil-gas Separation gained, reach the condition that downstream separates further, during need not add extractant, simplify the reactions steps of separation, reduce the dust burdening of oil gas, reduce corrosion of equipment degree, reduce separation costs.
Description
Technical field
The present invention relates to a kind of high-temperature oil gas washing system and washing methods, refer specifically to a kind of high temperature oil air purge Han dust
Wash chiller and wash cooling method.
Background technology
For some chemical plant installations, such as coal hydrogenation pyrolysis, its product is the high-temperature oil gas simultaneously containing coal ash；At present this
The separation of class mixture is a difficult problem.
In current high temperature coal-tar gas mixture isolation technics, it is the most all to be carried out by the various solvents of increase
Separate, but owing to the addition of solvent had both added the side reaction in equipment, add again difficulty and the expense of separation, and bring and set
Standby etching problem, simultaneously because high temperature coal-tar gas dust burdening is big, easily makes equipment result in blockage.
Summary of the invention
The technical problem to be solved is that the present situation for prior art provides a kind of oil gas ash three to separate effect
Fruit good and energy-saving and cost-reducing containing dust high-temperature oil gas wash cooling device.
To be solved by this invention another technical problem is that the present situation for prior art provides a kind of oil gas ash three
Good separating effect and energy-saving and cost-reducing containing dust high-temperature oil gas wash cooling method.
The present invention solves the technical scheme that above-mentioned technical problem used: this contains dust high-temperature oil gas wash cooling dress
Put, including scrubbing tower, the sidewall of described scrubbing tower connects and has washing gas ingress pipe；
Being provided with grid in it is characterized in that described scrubbing tower, the inner chamber of described scrubbing tower is divided into bottom by described grid
The spray district on scrubbing section and top；Described ingress pipe connects described scrubbing section；
Being provided with spray equipment in described spray district, the entrance of described spray equipment connects out-of-bounds spray liquid pipeline；
It is arranged over demister at described spray equipment in described spray district；
The bottom of described scrubbing tower connects oil-drain pipe, and the top of described scrubbing tower connects light oil feed channel.
Described spray equipment has multiple, arranges along described spray district short transverse interval；
Described spray piping is provided with the first regulation valve for regulating spray rate-of flow；
The first thermal detector it is provided with in described scrubbing section；
Described first regulation valve and described first thermal detector are all connected with control system.
Preferably, relief valve can be provided with and for detecting described scrubbing tower tower top pressure at the tower top of described scrubbing tower
Manograph；
Described light oil feed channel is provided with the second thermodetector；
Described relief valve, manograph and described second thermodetector are all connected with control system.
For improving washing separating effect further, it is to avoid falsity water level and the appearance of liquid flooding when gaseous mixture enters cleaning mixture, anti-
Only equipment vibrations, described ingress pipe can include the conduit for connecting gaseous mixture to be washed, and described conduit is positioned at described washing
Being arranged with sleeve pipe outside part pipeline in district, the lower port of described sleeve pipe is less than the lower port of described conduit；Described sleeve pipe upper
Port is contained in end socket；Described end socket is connected on the periphery wall of described conduit, and the diameter of the lower port of described end socket
Diameter more than described sleeve pipe；Described end socket is not connected to described sleeve pipe；
Gap between described conduit and described sleeve pipe is formed and purifies gas passage.
The ora terminalis of the lower port of described conduit is zigzag.Crushed the bubble carried secretly in scrubbing stream to be washed by sawtooth, keep away
Exempt from cleaning mixture and produce " false boiling " phenomenon, improve liquid level measurement precision.
As improvement, it is also possible to being interval with polylith gusset in described purification gas passage, the thickness of each described gusset is equal
Width less than described purification gas passage.The bubble being designed in crushing purifying gas of gusset, it is to avoid entrained liquid, increases gas
Liquid separating effect.
Preferably, described gusset has two groups, is separately positioned on the position of the lower port near described conduit and near described
Purify the position of the upper port of gas passage.
For avoiding the vibrations of conduit and sleeve pipe further, it is also possible between the inwall of described sleeve pipe and described tower, described
It is respectively connected with gripper shoe between the inwall of end socket and described tower.
The bottom of described tower can be pyramidal structure, effectively to stop slag inclusion heavy oil to be piled up in bottom of device, drops further
The probability of low device blocking, and facilitate the discharge of slag inclusion heavy oil, the second regulation valve can be provided with on described oil-drain pipe；
It is provided with liquidometer in described scrubbing section；
Described second regulation valve and liquidometer are all connected with control system.
Use the above-mentioned wash cooling method containing dust high-temperature oil gas wash cooling device, it is characterised in that include following step
Rapid:
First drive before, using heavy oil that ambient temperature is 100～150 DEG C from described conduit 22 be injected in scrubbing section as
Cleaning mixture, when the lower ora terminalis of a little higher than conduit of heavy oil liquid level 22, stops oiling；
System is driven, the high temperature oil that the temperature that upstream device is sent here is 500 DEG C～600 DEG C, pressure is 3.0～3.5MPaG
Gas by 3500～4500Nm3/h flow via described conduit with bubbling in the way of enter in cleaning mixture, tentatively lowering the temperature, washing
After washing, the oil product that density containing solid dirt is bigger sinks at the bottom of tower, remaining gas mixture then leave cleaning mixture along described only
Activating QI passage rises, after the grid in the middle part of scrubbing tower, and the light oil that temperature is 35～45 DEG C sprayed out by spray equipment
Carry out spraying cooling, washing；
Part heavy oil is washed out and falls after rise at the bottom of tower with washing light oil, and the gas phase not being washed out continues to rise, and passes through
After the liquid phase entrained by gas phase isolated by demister, discharge from described light oil feed channel；Control the oil in described light oil feed channel
Temperature is 250～350 DEG C；
When depositing liquid level in described scrubbing section and exceeding normal level, the data detected are delivered to control by described liquidometer
System processed, control system increases the valve opening of described second regulation valve, and the heavy oil washed out is discharged via described oil-drain pipe；
Controlling the heavy oil temperature in described oil-drain pipe is 360～460 DEG C；
When the liquid level in scrubbing section is less than normal level, the data detected are delivered to control system by described liquidometer
System, control system reduces the valve opening of described second regulation valve；
During wash cooling, described control system is according to the first regulation valve described in the Data Control of described first thermal detector
Aperture.
Apparatus of the present invention utilize the light oil circulated sprinkling cooling high temperature coal-tar gas of coal tar Oil-gas Separation gained so that it is reach
The condition that downstream separates further, during need not add extractant, simplify the reactions steps of separation, reduce containing of oil gas
Ash quantity, reduces corrosion of equipment degree, reduces separation costs.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of embodiment of the present invention assembling structure；
Fig. 2 is the sectional view of ingress pipe in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, this contains dust high-temperature oil gas wash cooling device and includes:
Scrubbing tower 1, is provided with grid 4 in the middle part of it, the inner chamber of scrubbing tower 1 is divided into scrubbing section 11 and the spray on top of bottom
Drench district 13.
Spray is provided with spray equipment 3 in district 13, and the entrance of described spray equipment 3 connects out-of-bounds spray liquid pipeline 31；This reality
Execute the spray equipment in example and have three, arrange along short transverse interval, spray district.Spray equipment can be selected existing as required
Any one in technology.
Spray piping 31 is provided with the first regulation valve 32 for regulating spray rate-of flow；Accordingly, at scrubbing section 11
Inside it is provided with the first thermal detector 12；First regulation valve 32 and the first thermal detector 12 are all connected with control system (not shown)；According to
The temperature of the first thermal detector 12, the aperture of regulation the first regulation valve 32, regulate light oil spray flux, thus control scrubbing section heavy oil and go out
Mouth temperature.
The tower top of scrubbing tower is provided with relief valve 19 and for detecting the manograph 10 of scrubbing tower tower top pressure；Scrubbing tower 1
Top connects has light oil feed channel 15, light oil feed channel 15 to be provided with the second thermodetector 18.
Manograph 10 and the second thermodetector 18 are all connected with control system.
Demister, is arranged in spray district, is positioned at the top of spray equipment 3, for isolating the liquid carried secretly in light oil gas
Drip.
Scrubbing section 11, its underpart is pyramidal structure；The bottom of scrubbing tower 1 connects has oil-drain pipe 14, on oil-drain pipe 14
It is provided with the second regulation valve 17；Being provided with liquidometer 16 in scrubbing section 11, control system controls according to the detection data of liquidometer 16
The aperture of the second regulation valve 17, thus control the liquid level of cleaning mixture.
Second regulation valve 17 and liquidometer 16 are all connected with control system (not shown), the liquid that liquidometer 16 will detect
Bit data passes to control system, and when liquid level is higher than normal level, control system increases the valve opening of the second regulation valve 17；
When in scrubbing section, liquid level is less than normal level, control system reduces the valve opening of the second regulation valve 17.
Ingress pipe 2, including conduit 22, for treating that washing separates the conveyance conduit of gaseous mixture, is used for connecting gaseous mixture to be washed
Source, its lower port is inserted under the liquid level of scrubbing section 11；The ora terminalis of lower port is zigzag；Its upper port 222 is by elbow 223
Connect the mouth of pipe of scrubbing tower 1.Sleeve pipe 23 it is arranged with outside conduit 22；The caliber of sleeve pipe 23 is more than the caliber of conduit 22, between the two
Gap formed purify gas passage 211；The lower port 231 of sleeve pipe is less than the lower port 221 of conduit.During use, the lower end of sleeve pipe
Mouth 231 is positioned at the bottom of liquid level, and the lower port 221 of conduit 22 is then positioned at the lower section of lower liquid level liquid level and near lower liquid level.
The upper port 232 of sleeve pipe 23 is contained in end socket 24.End socket 24 is connected on the periphery wall of conduit 22, end socket 24 times
The diameter of port, more than the diameter of sleeve pipe 23, is not connected between end socket 24 and sleeve pipe 23；End socket is positioned at the top of high level.
Between the inwall of sleeve pipe 23 and scrubbing tower 1, between end socket 24 and the inwall of scrubbing tower 1, it is respectively connected with gripper shoe 26.
Being interval with polylith gusset 25 in purifying gas passage 211, the thickness of each gusset 25 is respectively less than and purifies gas passage 211
Width.In the present embodiment, gusset 25 is divided into two groups, and often group has four pieces, is connected on the outer wall of conduit 22 and along outside conduit 22
Perisporium is evenly arranged；Two groups of gussets are separately positioned near the position of conduit lower port 221 with near purifying gas passage 211 upper end
The position of mouth.
The quantity of gusset 25 can be able to be such as two pieces according to the dimensions of scrubbing tower and be actually needed setting,
Three pieces or more polylith.
Wash cooling method containing dust high-temperature oil gas wash cooling device comprises the steps:
First drive before, using heavy oil that ambient temperature is 100～150 DEG C from described conduit 22 be injected in scrubbing section as
Cleaning mixture, when the lower ora terminalis of a little higher than conduit of heavy oil liquid level 22, stops oiling；
System is driven, the high temperature oil that the temperature that upstream device is sent here is 500 DEG C～600 DEG C, pressure is 3.0～3.5MPaG
Gas by 3500～4500Nm3/h flow via described conduit 22 with bubbling in the way of enter in cleaning mixture, preliminary cooling,
After washing, the oil product that density containing solid dirt is bigger sinks at the bottom of tower, and remaining gas mixture then leaves cleaning mixture along described
Purifying gas passage 211 to rise, after the grid in the middle part of scrubbing tower, the temperature sprayed out by spray equipment is 35～45 DEG C
Light oil carries out spraying cooling, washing；
Part heavy oil is washed out and falls after rise at the bottom of tower with washing light oil, and the gas phase not being washed out continues to rise, and passes through
After the liquid phase entrained by gas phase isolated by demister, discharge from light oil feed channel 15；Control the oil in described light oil feed channel 15
Temperature is 250～350 DEG C；
When depositing liquid level in described scrubbing section and exceeding normal level, the data detected are delivered to control by liquidometer 16
System, control system increases the valve opening of the second regulation valve 17, and heavy oil output increases；
Controlling the heavy oil temperature in described oil-drain pipe is 360～460 DEG C；
When the liquid level in scrubbing section is less than normal level, the data detected are delivered to control system by liquidometer 16,
Control system reduces the valve opening of the second regulation valve 17, and heavy oil output reduces.
During wash cooling, described control system is according to the first regulation described in the Data Control of described first thermal detector 12
The aperture of valve 32.
Compared with prior art, the present invention uses the method cooling down light oil spray washing in the external world to high-temperature oil gas mixture
Carry out refrigerated separation, it is to avoid the addition of various solvents, thus be effectively prevented solvent and side reaction occurs in a device, reduce and divide
From difficulty, reduce separation expense.
Claims (10)
1. a high-temperature oil gas wash cooling device Han dust, including scrubbing tower (1), the sidewall of described scrubbing tower (1) connects
There is washing gas ingress pipe (2)；
Being provided with grid (4) in it is characterized in that described scrubbing tower, the inner chamber of described scrubbing tower (1) is divided into by described grid (4)
The scrubbing section (11) of bottom and the spray district (13) on top；Described ingress pipe (2) connects described scrubbing section (11)；
Being provided with spray equipment (3) in described spray district (13), the entrance of described spray equipment (3) connects out-of-bounds spray liquid pipeline
31；
It is arranged over demister (5) at described spray equipment (3) in described spray district；
The bottom of described scrubbing tower (1) connects oil-drain pipe (14), and the top of described scrubbing tower (1) connects light oil feed channel
(15)。
The most according to claim 1 containing dust high-temperature oil gas wash cooling device, it is characterised in that described spray equipment (3)
Have multiple, arrange along described spray district short transverse interval；
Described spray piping (31) is provided with the first regulation valve (32) for regulating spray rate-of flow；
The first thermal detector (12) it is provided with in described scrubbing section (11)；
Described first regulation valve (32) and described first thermal detector (12) are all connected with control system.
The most according to claim 2 containing dust high-temperature oil gas wash cooling device, it is characterised in that the tower of described scrubbing tower
Top is provided with relief valve (19) and for detecting the manograph (10) of described scrubbing tower tower top pressure；
Described light oil feed channel (15) is provided with the second thermodetector (18)；
Described manograph (10) and described second thermodetector (18) are all connected with control system.
4. according to described in claims 1 to 3 any claim containing dust high-temperature oil gas wash cooling device, it is characterised in that
Described ingress pipe (2) includes the conduit (22) for connecting gaseous mixture to be washed, and described conduit (22) is positioned at described scrubbing section
Part pipeline outside be arranged with sleeve pipe (23), the lower port (231) of described sleeve pipe is less than the lower port (221) of described conduit；Institute
The upper port (232) stating sleeve pipe (23) is contained in end socket (24)；Described end socket (24) is connected to the periphery of described conduit (22)
On wall, and the diameter of the lower port of described end socket (24) is more than the diameter of described sleeve pipe (23)；Described end socket (24) is not connected to
Described sleeve pipe (23)；
Gap between described conduit (22) and described sleeve pipe (23) is formed and purifies gas passage (211).
The most according to claim 4 containing dust high-temperature oil gas wash cooling device, it is characterised in that the lower end of described conduit
The ora terminalis of mouth (231) is zigzag.
The most according to claim 5 containing dust high-temperature oil gas wash cooling device, it is characterised in that described purification gas passage
(211) being interval with polylith gusset (25) in, each described gusset (25) is connected on the outer wall of described conduit (22) and with described
Sleeve pipe has gap between (23).
The most according to claim 6 containing dust high-temperature oil gas wash cooling device, it is characterised in that described gusset (25) has
Two groups, it is separately positioned on the position of the lower port (221) near described conduit and near the upper end of described purification gas passage (211)
The position of mouth.
The most according to claim 7 containing dust high-temperature oil gas wash cooling device, it is characterised in that described sleeve pipe (23) with
Between the inwall of described scrubbing tower (1), between described end socket (24) and the inwall of described scrubbing tower (1), it is respectively connected with gripper shoe
(26)。
The most according to claim 8 containing dust high-temperature oil gas wash cooling device, it is characterised in that described scrubbing tower (1)
Bottom is pyramidal structure, and described oil-drain pipe (14) is provided with the second regulation valve (17)；
Liquidometer (16) it is provided with in described scrubbing section (11)；
Described second regulation valve (17) and liquidometer (16) are all connected with control system.
10. use the washing containing dust high-temperature oil gas wash cooling device as described in claim 1 to 9 any claim cold
But method, it is characterised in that comprise the steps:
Before first driving, the heavy oil that ambient temperature is 100～150 DEG C is injected in scrubbing section as washing from described conduit 22
Liquid, when the lower ora terminalis of a little higher than conduit of heavy oil liquid level 22, stops oiling；
System is driven, the temperature that upstream device is sent here is 500 DEG C～600 DEG C, pressure be 3.0～3.5MPaG high-temperature oil gas with
The flow of 3500～4500Nm3/h enters in cleaning mixture via described conduit (22) in the way of bubbling, is tentatively lowering the temperature, is washing
After washing, the oil product that density containing solid dirt is bigger sinks at the bottom of tower, remaining gas mixture then leave cleaning mixture along described only
Activating QI passage (211) rises, and after the grid in the middle part of scrubbing tower, the temperature sprayed out by spray equipment is 35～45 DEG C
Light oil carries out spraying cooling, washing；
Part heavy oil is washed out and falls after rise at the bottom of tower with washing light oil, and the gas phase not being washed out continues to rise, and passes through foam removal
After the liquid phase entrained by gas phase isolated by device, discharge from described light oil feed channel (15)；Control in described light oil feed channel (15)
Oil gas temperature be 250～350 DEG C；
When in described scrubbing section, liquid level is higher than normal level, the data detected are delivered to control system by described liquidometer 16
System, control system increases the valve opening of described second regulation valve (17), and the heavy oil washed out is via described oil-drain pipe (14)
Output, increases；
Controlling the heavy oil temperature in described oil-drain pipe is 360～460 DEG C；
When the liquid level in scrubbing section is less than normal level, the data detected are delivered to control system by described liquidometer (16)
System, control system reduces the valve opening of described second regulation valve (17), reduces heavy oil output；
During wash cooling, described control system is according to the first regulation valve described in the Data Control of described first thermal detector (12)
(32) aperture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610654782.XA CN106221726A (en) | 2016-08-09 | 2016-08-09 | A kind of containing dust high-temperature oil gas wash cooling device and wash cooling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610654782.XA CN106221726A (en) | 2016-08-09 | 2016-08-09 | A kind of containing dust high-temperature oil gas wash cooling device and wash cooling method |
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Cited By (4)
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| CN108387115A (en) * | 2018-03-02 | 2018-08-10 | 济南大学 | A kind of hypergravity heat exchanger and its application method |
| CN110090510A (en) * | 2018-01-29 | 2019-08-06 | 神华集团有限责任公司 | Gu de- be fixedly mounted with of oil gas sets and its applies, consolidates oil gas de-solid method |
| CN113750725A (en) * | 2021-10-09 | 2021-12-07 | 陕西延长石油（集团）有限责任公司 | High-temperature gas washing and purifying equipment |
| CN113893637A (en) * | 2021-10-09 | 2022-01-07 | 陕西延长石油（集团）有限责任公司 | Device and method for on-line sampling of multi-phase components in high-temperature gas |
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Application publication date: 20161214 |