CN208595263U - A kind of tail pipe air-lock device of extractant purification recovery system - Google Patents
A kind of tail pipe air-lock device of extractant purification recovery system Download PDFInfo
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- CN208595263U CN208595263U CN201821078477.1U CN201821078477U CN208595263U CN 208595263 U CN208595263 U CN 208595263U CN 201821078477 U CN201821078477 U CN 201821078477U CN 208595263 U CN208595263 U CN 208595263U
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- 238000011084 recovery Methods 0.000 title claims abstract description 47
- 238000000746 purification Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 17
- 208000002925 dental caries Diseases 0.000 claims description 6
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- 238000001727 in vivo Methods 0.000 claims 1
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- 238000004821 distillation Methods 0.000 abstract description 7
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- 230000005494 condensation Effects 0.000 abstract 1
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- 238000000605 extraction Methods 0.000 description 6
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- 238000009434 installation Methods 0.000 description 3
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- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
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Abstract
A kind of tail pipe air-lock device of extractant purification recovery system of the utility model, belong to drilling engineering field oil-contained drilling cuttings distillation processing tail gas safe safeguard, the tail pipe air-lock device of this extractant purification recovery system provided by the utility model, flexible isolating is carried out using aqueous medium, when system evaporation rate is less than condensation rate, inlet chamber can generate negative pressure, the intracorporal water of outlet plenum can partially enter inlet chamber to compensate volume differences, balance the pressure of both ends cavity, since the intracorporal water of outlet plenum is by calculating, it will not be all drawn onto inlet chamber, the oxygen in air is prevented to be inhaled into system from tail pipe, caused by safety accident.
Description
Technical field
The utility model belongs to drilling engineering field, and in particular to a kind of tail pipe lock gas dress of extractant purification recovery system
It sets.
Background technique
Oil-contained drilling cuttings or oil-containing material are extracted using solvent extraction technology, then pass through high temperature distillation for extractant
Distillation separation and recovery is carried out with oil, but since common extractant belongs to inflammable explosive article, to reduce operation field security risk,
It often is being distilled to recover installation air-lock device at system offgas duct, is preventing the oxygen in air from entering distillation recovery system.
Traditional tail pipe air-lock device is to install frequency conversion fan in tailpipe, and this device is prevented empty by generating negative pressure
Gas enters recovery system, high to the sealing requirements of blower, at the same also easily will uncooled flammable tail gas extraction, operating risk compared with
Height, isolation effect are poor.
Tail pipe is inserted directly into sink by another way, and liquid level is more than tailpipe exit, and shortcoming is to work as recovery system
When being cooled down, it may appear that suck-back, tail pipe need to be there are enough vertical heights, and mounting height is higher, hidden with certain safety
Suffer from.
Utility model content
The utility model provides a kind of tail pipe air-lock device of extractant purification recovery system, and the first purpose is to be to solve
Certainly above-mentioned defect existing in the prior art；The second purpose be overcome existing equipment processing air in oxygen suck-back there are leakproofness
There is security risk in insufficient, operating risk height.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of tail pipe air-lock device of extractant purification recovery system, comprising: water tank, water tank are interior by being fixed on water tank cavity
Water tank is divided into two cavitys of left and right by the partition at top, and two cavity bottom communicates to form linker, two cavity of left and right
Top is respectively equipped with being in charge of of being connected to inlet tube, and oxygen sensor is provided in inlet tube, wherein setting at the top of right chamber body
Outlet, being in charge of for being connect at the top of right chamber body with inlet tube are additionally provided with short valve；It is provided with water compensating valve at the top of right chamber body, it is right
Cavity side is also connected with water level limit valve, and the level height of water level limit valve is higher than the level height that two cavity bottoms communicate place
Degree.
Self-sealing overflowing bent pipe is provided on the water level limit valve of the right chamber body；Self-sealing overflow in right chamber body
The cavity volume formed between level height locating for level height locating for bend pipe and water level limit valve with the side wall of right chamber body is equal to
In right chamber body level height locating for water level limit valve and two cavity bottom communicate between level height locating for position with right chamber
The cavity volume that the side wall of body is formed.
Cavity volume in the left chamber body on the position of water level limit valve level height, greater than twice, right chamber
Level height locating for the internal water level limit valve and two cavity bottom communicate between level height locating for position with right chamber
The cavity volume that body sidewall is formed.
In the left chamber body, level height locating for water level limit valve and two cavity bottom communicate the height of level locating for position
The cavity volume formed between degree with left chamber body sidewall is equal in right chamber body, level height locating for water level limit valve and two chamber
Body bottom communicates the cavity volume formed between level height locating for position with right chamber body sidewall.
It further include main control board, power supply, the short valve is electrically-controlled valve, and the main control board and power supply, oxygen are visited
Survey device, short valve electrical connection.
It further include liquidometer, water tank side-walls are provided with liquidometer.
The liquid level is calculated as two connected vessels type liquidometers, is respectively arranged at left chamber body and right chamber body.
Discharge outlet is arranged in the water tank bottom, and waterproof silk plug is arranged in the discharge outlet.
It further include supporting leg, at least three supporting legs are arranged in water tank bottom.
It is described to be in charge of for metal hose.
The outlet is L shape bend pipe, and outlet exit is provided with downward groove.
The utility model has the beneficial effects that using aqueous medium carries out flexible isolating, when system evaporation rate is less than cold
When solidifying speed, inlet chamber can generate negative pressure, and the intracorporal water of outlet plenum can partially enter inlet chamber to compensate volume differences, with water
To balance the pressure isolation air of both ends cavity, it is therefore prevented that the oxygen in air is inhaled into system from tail pipe, caused by safety
Accident, present apparatus structure is simple, and possesses autostart function, simple and convenient, convenient to carry out, securely and reliably.
Detailed description of the invention
Fig. 1 is the utility model static structure schematic diagram
Fig. 2 is the utility model positive pressure ventilation status diagram
Fig. 3 is that the utility model negative pressure locks gaseity schematic diagram
Fig. 4 is that the utility model moisture evaporation liquid level declines status diagram
In the figure, it is marked as 1, water tank；2, inlet tube；3, oxygen sensor；4, short valve；5, metal hose；6, outlet；
7, water compensating valve；8, liquidometer；9, self-sealing spilling water bend pipe；10, water level limit valve；11, partition；12, discharge water silk plug；13, supporting leg.
Specific embodiment
Embodiment 1
A kind of tail pipe air-lock device of extractant purification recovery system, comprising: water tank 1, water tank 1 are interior by being fixed on water tank 1
Water tank is divided into two cavitys of left and right by the partition 11 of inner cavity top, and two cavity bottom communicates to form linker, the left and right
It is respectively equipped at the top of two cavitys and is in charge of with what inlet tube 2 was connected to, oxygen sensor 3 is provided in inlet tube 2, wherein right chamber body
Outlet 6 is arranged in top, and being in charge of for connecting at the top of right chamber body with inlet tube 2 is additionally provided with short valve 4；Setting at the top of right chamber body
There is water compensating valve 7, right chamber body side is also connected with water level limit valve 10, and the level height of water level limit valve 10 is higher than two cavity bottoms
Communicate the level height at place.
In the present embodiment, as shown in Figure 1 using a water tank as water container, and water tank is divided by left and right two with partition
Cavity, two cavity bottoms communicate, and form linker, left chamber body and right chamber body upper end and are in charge of equipped with what is be connected with inlet tube, point
Pipe and water tank are connected using flange seal, same as inlet tube to be tightly connected；It is open to atmosphere that one company is set at the top of right chamber body
Outlet is in charge of one short valve of upper setting in right chamber body, closes for controlling the connection that right chamber body is in charge of with inlet tube,
Water compensating valve is set at the top of right chamber body, and one water level limit valve of setting is used to control water compensating valve feed-water vessel on the connection position of bottom
The height of water level of interior water filling；
In use, two cavitys of left and right are connected with atmosphere, water compensating valve fills the water device, and opens water level limit valve, until
Until water level limit valve is discharged, water level face height is water level valve height, right if the liquid level of Fig. 1 left chamber body at this time is B area
The liquid level of cavity is the region C, since water level limit valve is higher than bottom connectivity part, so two cavity bottoms are by water-stop, this
When by device with purification recovery system connect, then work can be trusted by purifying recovery system.
After purification recovery system will work and generate tail gas, short valve is opened, tail gas can be from inlet tube through short valve, through being in charge of
Into right chamber body, it is discharged from outlet.
When purification recovery system will stop working, short valve is closed, purification recovery system will continue to work and generate tail gas,
Tail gas can enter left chamber body, and positive pressure is generated in left chamber body, and hydraulic pressure in left chamber body to right chamber body is depressed into bottom to water and connected by positive pressure
When logical place, the gas for going successively to left chamber body can enter right chamber body from two cavity connectivity part of left cavity bottom or so, then from
Outlet discharge；
Tail gas is generated after recovery system work to be purified is progressively reduced until no tail gas, purification recovery system cooling
Afterwards, internal cavity generates negative pressure due to gas shrinkage, then in left chamber body also can same negative pressure, it is left due to the effect of linker
Cavity is that can improve the liquid level of water in left chamber body with atmospheric isolation, negative pressure at this time, is higher than right chamber body fluid face, the water of right chamber body
Left chamber body can be entered from water tank bottom connectivity part, after liquid level rises certain altitude, purification is supplemented by the volume of water in left chamber body
The volume of recovery system negative pressure and the liquid level of water offset a part of negative pressure, so that water rises the pressure after certain liquid height
It establishes by force and balances with pressure in purification recovery system, at this point, purification recovery system is purified it and isolated from atmosphere by water-stop
Oxygen will not be entered in recovery system, until etc. in recovery system to be purified reactive material drop to safe temperature.
Wherein, it is when reacting in order to prevent that oxygen sensor is provided in inlet tube, and no tail gas generation causes in air
Oxygen enters purification recovery system, and monitoring personnel can understand whether purification recovery system working condition pacifies by oxygen sensor
Entirely.
Note: water level limit valve communicates the height at place relative to bottom, due in purification by liquid extraction system, purification by liquid extraction device type
Number different, cavity volume is also not quite similar, so, according to the purification by liquid extraction device of different model, selected the utility model one
The tail pipe air-lock device of kind extractant purification recovery system, the standard of selection is the internal volume according to purification by liquid extraction device；It is right
It answers, volume (the i.e. region C that the water level limit valve horizontal position of the utility model communicates place horizontal position with bottom and cavity is formed
Volume)；Optionally, C Domain Volume is equal to the internal volume of purification by liquid extraction device.
About the actual volume in the region C, calculated by volume expansion formula:
When gas temperature changes 1 degree Celsius, the variation of volume and its ratio between volume at 0 DEG C are called " volume expansion
Coefficient ".Symbol is indicated with α.The volume of substance is V when being located at 0 DEG C0, the volume at t DEG C is Vt, volume expansion formula are as follows:
Vt=V0(1+ α t) ... ... ... ... ... (1)
According to formula (1) gas temperature by t2It is down to t1When gas volume variation obtain:
△V=V2-V1=V1α (t2-t1) ... ... ... ... ... (2)
And the actual volume V in the region CC>△V
Embodiment 2
On the basis of embodiment 1, to be provided with self-sealing overflow on the water level limit valve 10 of the right chamber body curved
Pipe 9；In right chamber body between level height locating for level height locating for self-sealing overflowing bent pipe 9 and water level limit valve 10 with right chamber body
The cavity volume that is formed of side wall be equal to level height and two cavity bottom locating for water level limit valve 10 in right chamber body and communicate
The cavity volume formed between level height locating for position with the side wall of right chamber body.
In the present embodiment, since the utility model is placed in purification recovery system tail portion, tail gas is by the present apparatus, and this dress
Setting inner sealing medium is water, so more or less can take away a part of vapor when tail gas passes through, purifies recovery system work
Make the time it is longer when, the water in the present apparatus can be reduced, as shown in figure 4, after purifying recovery system power cut-off, water in the present apparatus
Very few, water is sufficient to compensate for left chamber body and generates water required for negative pressure in right chamber body, so being needed at this time to supplementing water in device
Point, if short valve has been switched off, it is in positive pressure ventilation state, water level limit valve cannot be opened and be balanced moisturizing, at this time
Need to be arranged self-sealing overflowing bent pipe, self-sealing overflowing bent pipe is designed according to water level limit valve, and moisturizing is limited with water level
Valve is that the water level of standard is equal.So self-sealing overflowing bent pipe is set on water level limit valve, and is set in same cavity
It is placed in the volume at water level limit valve level height and communication port between level height with the formation of right chamber body sidewall equal to self-styled
The position equal with the volume that right chamber side wall is formed between horizontal plane locating for horizontal plane locating for formula overflowing bent pipe and water level limit valve,
That is the region D in Fig. 2.
If short valve has been switched off when needing moisturizing in positive pressure ventilation state (Fig. 2 be positive pressure gaseity), open
Water compensating valve water filling, until self-sealing spilling water bend pipe water outlet until, at this time quantity of water in water tank with pass through water level limit valve in atmospheric pressure
Lower balance moisturizing supplement water phase etc., can effective moisturizing by self-sealing spilling water bend pipe.
Wherein, self-sealing overflowing bent pipe is U-bend, and sewer trap is similar in bend pipe and is designed, can be in bend pipe
Certain water is stored, a lock gas effect is played, so that tail gas is unlikely to be discharged out of bend pipe, to pollute workshop condition.
Embodiment 3
On the basis of embodiment 1 or embodiment 2, in the left chamber body in the position of 10 level height of water level limit valve it
On cavity volume, greater than twice, level height locating for the water level limit valve 10 and two cavity bottom in right chamber body
Communicate the cavity volume formed between level height locating for position with right chamber body sidewall.In the left chamber body, water level limit valve 10
Locating level height and two cavity bottom communicate the cavity body formed between level height locating for position with left chamber body sidewall
Product is equal in right chamber body, level height locating for water level limit valve 10 and two cavity bottom communicate level height locating for position it
Between with right chamber body sidewall formed cavity volume.
In the present embodiment, such as Fig. 1, Fig. 2, shown in Fig. 3, it is contemplated that cost problem, when purification recovery system temperature drops to foot
When enough low, in intracavitary gas volume can also drop to sufficiently low, have oxygen at this time into will not cause the accident, but water enters purification
Recovery system will lead to extracting solution water mixing, be unfavorable for Purification next time, water removal is time-consuming and laborious, so in device in left chamber body
Devising the maximum height of water rising, i.e., in left chamber body, water more than linker connectivity part level height fully enters left chamber body,
Entire cavity (i.e. a-quadrant+B area) will not be full of, water be made in cavity to enter in purification recovery system, thus in left chamber body in
Cavity volume on the position of 10 level height of water level limit valve, greater than twice, in right chamber body locating for water level limit valve 10
Level height and two cavity bottoms communicate the cavity volume formed between level height locating for position with right chamber body sidewall；That is Va
> 2Vc.The volume design of a-quadrant is because under positive pressure ventilation state, when moisturizing there is no the volume for being equal to the region C, it is possible to
When closing the moisturizing of water level limit valve, left chamber body is in the initial stage under positive pressure ventilation state, and the water of supplement can be twice
C regional water, occur so being designed as Va > 2Vc to prevent worst situation, increase the safety of system.Two cavity volumes of left and right
It is too big to be unable to difference, so level height locating for water level limit valve 10 and two cavity bottom communicate position institute in left chamber body
Locate the cavity volume formed between level height with left chamber body sidewall；Equal in right chamber body, level locating for water level limit valve 10 is high
Degree and two cavity bottom communicate the cavity volume formed between level height locating for position with right chamber body sidewall.
Embodiment 4
It further include main control board, power supply, the short valve 4 on the basis of embodiment 1 or embodiment 2 or embodiment 3
For electrically-controlled valve, the main control board and power supply, oxygen sensor 3, short valve 4 are electrically connected.
In this implementation, oxygen sensor is installed at inlet tube as shown in Figure 1, short valve uses electrically-controlled valve, then can be with
The case where entering inlet tube according to air automatically control short valve unlatching, thus reach it is unattended also can automatic work.This
In embodiment, the main control board that electrical control mechanism is integrated by single-chip microcontroller, power supply, oxygen sensor, short valve and master control borad
Connection, oxygen sensor collect present position oxygen content information, implement casting oxygen content data and are transmitted to main control board,
Main control board receives the left corresponding actions of oxygen content, and when oxygen content is normal value, short valve is set on state, when
When oxygen content increases, short valve is automatically closed, system is made to enter lock gaseity, realizes and monitors in real time, the purpose of real-time control,
Effectively save manpower.
Embodiment 5
It further include liquidometer 8,1 side wall of water tank on the basis of embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4
Place is provided with liquidometer 8, and the liquidometer 8 is two connected vessels type liquidometers, is respectively arranged at left chamber body and right chamber body.It is described
Discharge outlet is arranged in 1 bottom of water tank, and waterproof silk plug 12 is arranged in the discharge outlet.It further include supporting leg 13,1 bottom of water tank is arranged at least
Three supporting legs 13.It is described to be in charge of for metal hose 5.The outlet 6 is L shape bend pipe, and 6 exit of outlet is provided with to descending
Mouthful.
In the present embodiment, liquidometer is the liquid level in order to obtain two cavitys of left and right, whether has confirmed that left and right cavity
Water shortage can also recognize that extractant purifies recovery system if moisture can be replenished in time according to liquidometer in water shortage according to liquidometer
Tail pipe air-lock device working condition at this time；Preferred two liquidometer uses communication type liquidometer, can more intuitively see
Liquid level in device.The discharge outlet of device water tank bottom when not used can drain in time, exclude moisture, avoiding device is prolonged not to be had to
Cause to get rusty, influence secondary use, metal hose can effectively save installation cost, facilitate installation, and outlet exit is set as 90
Degree elbow adds downward bevel, can not only reduce resistance but also can prevent rainwater from entering.
In conclusion the utility model is connected to extractant purification recovery system, i.e., on the tail pipe of distillation condenser system.?
Distillation condenser system will stop, and when tail gas still has fixed gas after closing short valve, be in the area inlet chamber A of the utility model
Positive pressure, as shown in Fig. 1, the fixed gas in the area A will push the water in the area B to enter the area C, until the water in the area B is all pressed into the area C, gas
Body will emerge from bottom to top along outlet cavity, be discharged along outlet, inlet chamber and outlet plenum body is made to re-establish pressure
Equilibrium relation；When the tail gas for distilling condenser system is discharged without fixed gas or when distillation amount is reduced, the temperature in condenser can drop
Low, the volume of fixed gas can reduce, then being negative pressure, as shown in Fig. 3, right chamber body in the area inlet chamber A of the utility model
Logical atmosphere, the water in the area C can enter the area B under the promotion of atmospheric pressure to make up above-mentioned fixed gas volume due to caused by cooling
Variation, until inlet chamber and outlet cavity both sides re-establish pressure balance relationship, since the initial volume in the area C is by calculating
Set i.e. Va > 2Vc will not all be sucked the area B, keep ensure that water will not blow back into extractant and mention while sealing state
Pure recovery system, it is therefore prevented that the air in the area D enters the area A when extractant purification recovery system high temperature, plays positive pressure release, locks gas
Effect has sealing effect good, the high feature of safe coefficient.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used for solving in the present embodiment
It releases in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if this is specific
When posture changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. is used for description purposes only, it is not understood to indicate or imply
Its relative importance or the quantity for implicitly indicating indicated technical characteristic.The spy of " first ", " second " is defined as a result,
Sign can explicitly or implicitly include at least one of the features.
Technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.
Claims (10)
1. a kind of tail pipe air-lock device of extractant purification recovery system characterized by comprising water tank (1), water tank (1) are interior
Water tank is divided into two cavitys of left and right by the partition (11) by being fixed on water tank (1) inner cavity top, and two cavity bottom communicates shape
It at linker, is respectively equipped at the top of two cavity of left and right and is in charge of with what inlet tube (2) was connected to, be provided in inlet tube (2)
Wherein outlet (6) are arranged at the top of right chamber body in oxygen sensor (3), and what is connect at the top of right chamber body with inlet tube (2) is in charge of also
It is provided with short valve (4)；It is provided with water compensating valve (7) at the top of right chamber body, right chamber body side is also connected with water level limit valve (10), water
The level height of position limit valve (10) is higher than the level height that two cavity bottoms communicate place.
2. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that the right chamber
Self-sealing overflowing bent pipe (9) are provided on the water level limit valve (10) of body；Self-sealing overflowing bent pipe (9) institute in right chamber body
The cavity volume for locating to be formed between level height locating for level height and water level limit valve (10) with the side wall of right chamber body is equal to the right side
In cavity level height locating for water level limit valve (10) and two cavity bottom communicate between level height locating for position with the right side
The cavity volume that the side wall of cavity is formed.
3. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that the left chamber
Cavity volume on the position of water level limit valve (10) level height in vivo, greater than twice, the water level in right chamber body
Level height locating for limit valve (10) and two cavity bottom communicate between level height locating for position with right chamber body sidewall shape
At cavity volume.
4. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that the left chamber
Level height locating for internal water level limit valve (10) and two cavity bottom communicate between level height locating for position with left chamber
The cavity volume that body sidewall is formed is equal to level height and the two cavity bottoms phase locating for water level limit valve (10) in right chamber body
The cavity volume formed between level height locating for logical position with right chamber body sidewall.
5. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that further include master
Circuit board, power supply are controlled, the short valve (4) is electrically-controlled valve, the main control board and power supply, oxygen sensor (3), short valve
(4) it is electrically connected.
6. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that further include liquid
Position meter (8), water tank (1) side-walls are provided with liquidometer (8), and the liquidometer (8) is two connected vessels type liquidometers, are set respectively
It is placed in left chamber body and right chamber body.
7. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that the water tank
(1) discharge outlet is arranged in bottom, and waterproof silk plug (12) are arranged in the discharge outlet.
8. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that further include branch
At least three supporting legs (13) are arranged in leg (13), water tank (1) bottom.
9. a kind of tail pipe air-lock device of extractant purification recovery system as described in claim 1, which is characterized in that described to be in charge of
For metal hose (5).
10. the tail pipe air-lock device of a kind of extractant purification recovery system as described in claim 1, which is characterized in that it is described go out
Mouth pipe (6) is L shape bend pipe, and outlet (6) exit is provided with downward groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821078477.1U CN208595263U (en) | 2018-07-09 | 2018-07-09 | A kind of tail pipe air-lock device of extractant purification recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821078477.1U CN208595263U (en) | 2018-07-09 | 2018-07-09 | A kind of tail pipe air-lock device of extractant purification recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679268A (en) * | 2018-07-09 | 2018-10-19 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of the tail pipe air-lock device and method of extractant purification recovery system |
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2018
- 2018-07-09 CN CN201821078477.1U patent/CN208595263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679268A (en) * | 2018-07-09 | 2018-10-19 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of the tail pipe air-lock device and method of extractant purification recovery system |
| CN108679268B (en) * | 2018-07-09 | 2024-04-30 | 中国石油天然气集团有限公司 | Tail pipe air locking device and method of extractant purifying and recycling system |
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Effective date of registration: 20201120 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710018 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building Patentee before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |