CN114321718A - Oil-gas mixed transportation integrated device not prone to blockage - Google Patents
Oil-gas mixed transportation integrated device not prone to blockage Download PDFInfo
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- CN114321718A CN114321718A CN202111588246.1A CN202111588246A CN114321718A CN 114321718 A CN114321718 A CN 114321718A CN 202111588246 A CN202111588246 A CN 202111588246A CN 114321718 A CN114321718 A CN 114321718A
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Abstract
The invention relates to the field of oil-gas mixed transportation, in particular to an oil-gas mixed transportation integrated device which is not easy to block, comprising a prying frame welding main body, an oil inlet pipeline and an oil outlet pipeline, wherein the oil inlet pipeline and the oil outlet pipeline are arranged on the prying frame welding main body; the right end of the oil outlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a safety valve and an output pipeline; the right end of the oil inlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a filtering group and a flow dividing pipe; at least one group of oil-gas mixed transportation pump set is connected between the output pipeline and the shunt pipe, and the filtering set comprises a filtering structure and a cleaning structure. The invention reduces complex pipelines, and meanwhile, by arranging the automatic cleaning mechanism, the automatic cleaning can be realized without stopping the machine, so the blockage is not easy to happen.
Description
Technical Field
The invention relates to the field of oil-gas mixed transportation, in particular to an oil-gas mixed transportation integrated device not easy to block.
Background
The oil-gas mixed transportation technology is developed rapidly in recent years, is a new technology for directly transporting crude oil products to a united station by mixing and pressurizing, can reduce oil-gas separation equipment and a gas transmission pipeline compared with the traditional oil production technology, and can reduce the platform area of an offshore oil field. The oil-gas mixed transportation technology can greatly reduce the engineering investment, has very important significance for realizing the oil-gas fully-closed gathering and transportation of the oil field, realizing the complete recovery of the casing gas and the associated gas and prolonging the gathering and transportation radius, can reduce the wellhead back pressure, increase the yield of crude oil and natural gas, and has very considerable economic and social benefits.
In the present existing oil-gas mixed transportation integrated device, the pipeline of the skid body is too complex, the cold transportation effect is poor, because the crude oil and the associated gas flow along the pipe, which mainly belongs to the gas-liquid two-phase flow, the oil well product often contains water and sand, the gas-liquid and the impurities are transported together, the pipeline is easy to be blocked, and simultaneously the associated gas in the crude oil can increase the viscosity of the crude oil, so that the crude oil has a large amount of energy loss in the transportation process, in order to solve the technical problems, in the prior art, the patent number is 201821955983.4, the patent name is an oil-gas collecting transportation filtering device, in the utility model, the distance of the crude oil circulation is increased in the limited space, solid particles in the crude oil are further filtered out through the shell and the filtering plate, the water in the crude oil is removed through the macromolecular water-absorbent resin in the shell, and then the associated gas in the crude oil is discharged through the inner baffle plate, therefore, the crude oil is comprehensively filtered, dewatered and degassed in a limited space, the viscosity of the crude oil is reduced, the pipeline blockage is avoided, and the energy loss in the conveying process is reduced. Although filtration has been realized to a certain extent in above-mentioned technique, because its filtration structural design only adopts traditional filter plate structure, need the manual work to clear up or change it after the deposit filth on the filter board, and also need halt the transport to crude oil this moment, work efficiency also can receive the influence simultaneously.
Disclosure of Invention
The invention aims to provide an oil-gas mixed transportation integrated device, which solves the problems that the pipeline of the existing oil-gas mixed transportation integrated device is complex and the filtering structure is difficult to operate continuously.
In order to solve the technical problems, the technical means of the oil-gas mixed transportation integrated device which is not easy to block is as follows: the oil outlet pipeline and the oil inlet pipeline are arranged on the prying frame welding main body, and a first high-pressure electric valve is connected between the oil outlet pipeline and the oil inlet pipeline; the right end of the oil outlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a safety valve and an output pipeline; the right end of the oil inlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a filtering group and a flow dividing pipe, and the inlet of the oil inlet pipeline is connected with a heater;
at least one group of oil-gas mixed transportation pump set is connected between the output pipeline and the flow dividing pipe, the oil-gas mixed transportation pump set comprises a first gate valve, a check valve, an energy accumulator, an eccentric oil mixed transportation pump and a second high-pressure electric valve which are sequentially connected, and the inlet end of the second high-pressure electric valve is connected with the flow dividing pipe;
the filter group comprises a filter structure and a cleaning structure, the filter structure comprises a shell and a filter screen, the filter screen is arranged in the shell, the space in the filter screen is a first space, the space between the filter screen and the shell is a second space, the shell is provided with an inlet and an outlet, the inlet is directly communicated with the first space, and the outlet is directly communicated with the second space; the clearance structure includes the blow off pipe and is used for driving the drive arrangement that the blow off pipe goes up and down, the blow off pipe includes the standpipe and violently manages, the standpipe with violently manage inside intercommunication and the two rotates and be connected, the standpipe stretches out outside the casing after first space and second space in proper order, the part that the standpipe stretched out outside the casing is equipped with the drain, the tip of violently managing is equipped with the soil pick-up mouth of uncovered form.
The oil-gas mixed transportation integrated device which is not easy to block and adopts the technical scheme has the following technical advantages: according to the invention, the filtering group is arranged to remove larger particles in the crude oil, and the natural gas associated with the crude oil and the particles contained in the natural gas are uniformly distributed in a liquid phase through the oil-gas mixed transportation pump group, so that a foam-liquid mixture is formed to reduce wax precipitation and solidification of the natural gas, fine particles are wrapped well to prevent the fine particles from being precipitated, and the oil-gas mixed transportation and cold transportation effects are better improved. Through the connection distribution of the components, redundant pipelines are reduced, the original conveying pipe diameter is reduced, the skid body can be better connected with a petroleum conveying pipeline, the whole capacity of the skid body pipeline is reduced, the conveying time of liquid flow in the skid body is reduced under the same conveying pressure, the phase splitting of a gas-liquid mixture in the skid is also reduced, and the oil-gas mixed conveying and cold conveying effects are better realized.
The continuous operation of the filtering structure is realized by opening the drain outlet, and because the crude oil is continuously conveyed, the pressure in the shell is far greater than the external pressure of the drain outlet, so that the dirt on the filter screen is sucked into the transverse pipe and the vertical pipe through the dirt suction port and finally discharged from the drain outlet; simultaneously, because the filth deposit is at the inner wall of filter screen, under the great condition of casing internal pressure, the liquid in second space also can be reverse to flow towards the direction of soil pick-up mouth, consequently also realizes the backwash to the filter screen, can reach better clearance effect. The vertical pipe is communicated with the inside of the horizontal pipe and is rotationally connected with the horizontal pipe, and the horizontal pipe is uniformly distributed in a fan-blade shape along the circumferential direction of the vertical pipe; the driving device drives the standpipe and drives the moving down of violently managing, then can realize the thorough clearance to filth in the filter screen in the direction of height simultaneously, just accomplish a complete clearance until violently managing and moving to the position that the filter screen bottom is close to the import, later violently move on the pipe in reverse drive, also realize once more the clearance to the filter screen inner wall when realizing violently managing the reduction in return, can reach better clearance effect, this technical scheme can realize the clearance to the filter screen automatically, need not artifical clearance, and at the clearance in-process, need not the transport of pause crude oil, can guarantee work efficiency.
As a preferred scheme, the shell is fixed between two second gate valves through a flange plate, and the two ends of the shell are provided with the second gate valves and communicated through the flange plate; the filter group has two places, and two sets of filter groups are parallelly connected between oil inlet pipe and shunt tubes, and the shut down maintenance that leads to when two places filter group can avoid the filter group to break down, when meetting the more condition of impurity in addition, also can move simultaneously to promote filterable efficiency.
As the preferred scheme, still be connected with the return line on the pipeline between eccentric oil mischarge pump and the second high pressure motorised valve, the exit end and the shunt tubes of return line are connected, still are equipped with the ball valve on the return line.
According to a preferable scheme, a communication structure is arranged at the position where the vertical pipe is rotationally connected with the transverse pipe, the communication structure comprises a rotating sleeve rotationally connected with the vertical pipe, an annular groove formed in the vertical pipe, a first communication hole communicated with the interior of the vertical pipe and a second communication hole communicated with the interior of the transverse pipe, the transverse pipe is arranged on the rotating sleeve, the first communication hole is located in the annular groove, the second communication hole is arranged on the rotating sleeve, and at least two transverse pipes are uniformly distributed along the circumferential direction of the rotating sleeve; along with violently the rotation of pipe, first through-hole and second through-hole direct intercommunication appear in turn and through annular groove 82 and the indirect connection in clearance of rotating sleeve 81, under these two kinds of circumstances, the route and the cross-section of intercommunication all can change to make the process of suction filth take place regular vibration, this kind of vibration is compared in steady suction, drives filth from the filter screen more easily and gets off
Preferably, in order to achieve uniform cleaning effect, the filter screen is coaxially arranged in the housing, and the standpipe is located in the middle of the filter screen, namely, in the middle of the first space and the second space.
As the preferred scheme, in order to reach better dirt suction effect, the venturi effect can be used, so that the dirt suction port is opposite to the inner side wall of the filter screen, and the dirt suction port is close to the inner wall of the filter screen. The suction dirty mouth has less clearance with the filter screen inner wall, guarantee can not influence violently the pipe the rotation can, the oil gas liquid of the suction dirty mouth of flowing through this moment can accelerate and take away the granule of adhesion on the filter screen under the venturi effect.
Preferably, the cross pipes are of a blade-shaped flat pipe structure and are at least two, the cross pipes are uniformly distributed in a fan-blade shape along the circumferential direction of the vertical pipe, and the fan-blade-shaped cross pipes have certain lift angles and can be driven by liquid flow to rotate automatically.
Drawings
Fig. 1 is a schematic top view of a mixing and transporting integrated device according to an embodiment of the invention;
fig. 2 is a schematic diagram of a right-view structure of a mixing and transporting integrated device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a filter device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a filter device according to an embodiment of the present invention in a clean state;
fig. 5 is a schematic structural view of a joint between a horizontal pipe and a vertical pipe in the filtering apparatus according to the embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the oil-gas mixture transportation integrated device which is not easy to block comprises a pry frame welding main body 1, and an oil inlet pipeline 22 and an oil outlet pipeline 21 which are installed on the pry frame welding main body 1, wherein a first high-pressure electric valve 16 is connected between the oil outlet pipeline 21 and the oil inlet pipeline 22, and the oil outlet pipeline 21, the oil inlet pipeline 22 and the first high-pressure electric valve 16 are connected through flange plates. A heater is preferably arranged at the inlet of the oil inlet pipeline 22 to preheat the crude oil, improve the flowability of the crude oil in the oil-gas mixed transportation device and reduce the resistance in subsequent filtration.
The right end of the oil outlet pipeline 21 is also connected with another first high-pressure electric valve 16, and is sequentially connected with a safety valve 10 and an output pipeline 20, and the safety valve 10 is provided with a pressure relief pipeline; the right end of the oil outlet pipeline 21 is connected with one end of the first high-pressure electric valve 16 through a flange, the other end of the first high-pressure electric valve 16 is connected with the safety valve 10 through a flange, the outlet end of the safety valve 10 is connected with the output pipeline 20 through a flange, and the pressure relief end of the safety valve 10 is fixedly connected with the pressure relief pipeline.
The right end of the oil inlet pipeline 22 is also connected with another first high-pressure electric valve 16, and is sequentially connected with a filtering group and a flow dividing pipe; the filtering group comprises a filtering device 7 and two second gate valves 9.
The filtering device 7 is fixed between the two second gate valves through a flange, preferably two groups of filtering groups are arranged, and the two groups of filtering groups are connected between the oil inlet pipeline 22 and the shunt pipe in parallel; the split-flow pipes are divided into a plurality of sections, the number of the sections of the split-flow pipes is one more than that of the groups of the oil-gas mixed transportation pump groups, the leftmost end of the split-flow pipe is a connecting section connected with the filtering group, the two sections on the right are mixed transportation sections connected with the oil-gas mixed transportation pump groups, and a split-flow control plate 17 is arranged between the split-flow pipes of each section, so that the split-flow control plate is convenient to control and access one group, two groups and a plurality of groups of oil-gas mixed transportation pump groups to work. A return pipeline is also connected to the pipeline between the eccentric oil mixing and delivering pump 4 and the second high-pressure electric valve 18, the outlet end of the return pipeline is connected with the shunt pipe, and a ball valve is arranged on the return pipeline.
At least one group of oil-gas mixed transportation pump sets is connected between the output pipeline 20 and the shunt pipe, in this embodiment, two groups of oil-gas mixed transportation pump sets are preferred, each group of oil-gas mixed transportation pump sets comprises a first gate valve 6, a check valve 8, an energy accumulator 14, an eccentric oil mixed transportation pump 4 and a second high-pressure electric valve 18 which are connected in sequence, wherein an inlet end of the second high-pressure electric valve 18 is connected with the corresponding mixed transportation section of the shunt pipe. The first gate valve 6, the check valve 8, the accumulator 14, the eccentric oil mixing and transportation pump 4 and the second high-pressure electric valve 18 are connected in sequence by flange plates; the eccentric oil mixed transportation pump 4 is also connected with a horizontal anti-explosion speed reducer 2, a protective cover 3 is arranged at the joint of the horizontal anti-explosion speed reducer 2 and the eccentric oil mixed transportation pump 4, the protective cover 3 can prevent external objects from being drawn into the joint and shield rainwater, meanwhile, the safety of workers during shutdown maintenance detection is protected, and the eccentric oil mixed transportation pump 4 is fixed on the prying frame welding main body 1 through a base 5 arranged.
The oil outlet pipeline 21, the oil inlet pipeline 22, the output pipeline 20 and the shunt pipes are installed and fixed on the prying frame welding main body 1 by adopting pipeline brackets. A pressure gauge 11, a pressure transmitter 12 and a temperature transmitter 19 are also arranged on the oil outlet pipeline 21 and the shunt pipe. A temperature transmitter 19 is arranged on the pipeline behind the first high-pressure electric valve 16 connected with the right end of the oil outlet pipeline 21; the pressure gauge 11 and the pressure transmitter 12 are arranged on the pipeline of the shunt pipe connected with the first group of oil-gas mixed transportation pumps, and the temperature transmitter 19 is arranged on the pipeline connected with the second group of oil-gas mixed transportation pumps; the pressure gauge 11 is preferably 0-6MPa, the pressure transmitter 12 is preferably vibration-proof PN4, and the temperature transmitter 19 is preferably ST 20.
The working principle and the process thereof are as follows: as shown in fig. 1, after being heated by the heater, the oil gas sequentially enters the oil inlet pipeline 22, the first high-pressure electric valve 16 and the filter unit (the filter unit includes the second gate valve 9, the basket filter 7 and the second gate valve 9 which are sequentially connected), passes through the filter unit, passes through the flow dividing pipe, passes through the oil-gas mixed transportation pump unit (the oil-gas mixed transportation pump unit includes the second high-pressure electric valve 18, the eccentric oil-gas mixed transportation pump 4, the energy storage pump 14, the check valve 8 and the first gate valve 6 which are sequentially connected), is pressurized, and finally passes through the output pipeline 20, the safety valve 10 and the first high-pressure electric valve 16, and finally is output from the oil outlet pipeline 21.
As shown in fig. 3, 4 and 5, the filtering device 7 includes a filtering structure and a cleaning structure, the filtering structure includes a housing 71 and a filter screen 72, the filter screen 72 is disposed in the housing 71, a space in the filter screen 72 is a first space 73, a space between the filter screen 72 and the housing 71 is a second space 74, the housing 71 has an inlet 75 and an outlet 76, the inlet 75 is directly communicated with the first space 73, and the outlet 76 is directly communicated with the second space 74; the clearance structure includes the blow off pipe and is used for driving the drive arrangement 86 that the blow off pipe goes up and down, the blow off pipe includes standpipe 77 and violently pipe 78, standpipe 77 with violently pipe 78 inside intercommunication and the two rotate and be connected, standpipe 77 stretches out outside casing 71 after passing through first space 73 and second space 74 in proper order, the part that standpipe 77 stretches out outside casing 71 is equipped with drain 79, it is specific, violently pipe 78 carries out the in-process that removes at first space 73, drain 79 is located the casing 71 outside all the time, drive arrangement 86 is cylinder or flexible motor, the drive end of cylinder or flexible motor is connected with the upper end of standpipe 77, realize the lift drive of standpipe 77, drain 79 establishes in the position that is close to standpipe 77 upper end, in order to realize the control to drain 79, drain 79 department is equipped with the control valve. The end of the transverse pipe 78 is provided with a sewage suction port 80, the sewage suction port 80 is open, in order to achieve a better sewage suction effect, the sewage suction port 80 is over against the inner side wall of the filter screen 72, and the sewage suction port 80 is close to the inner wall of the filter screen 72. The dirt suction port 80 has a certain clearance with the inner wall of the filter screen 72, so that the rotation of the transverse pipe 78 cannot be influenced. The horizontal pipes 78 are blade-shaped flat pipe structures, and at least two horizontal pipes 78 are fan-shaped and evenly distributed along the circumferential direction of the vertical pipe 77.
The lower end of the filter screen 72 is open, the inlet 75 is directly communicated with the first space 73, crude oil enters the first space 73 from the inlet 75, then is filtered by the filter screen 72, enters the second space 74 through the filtered crude oil, and finally is discharged through the outlet 76, so that the crude oil is filtered in the crude oil conveying process.
In order to achieve a uniform cleaning effect, the screen 72 is arranged coaxially within the housing 71, and the standpipe 77 is located in the middle of the screen 72, i.e. in the middle of the first space 73 and the second space 74. For the rotational connection of the vertical tube 77 and the horizontal tube 78 and the internal communication therebetween, a communication structure is provided at the position where the vertical tube 77 is rotationally connected with the horizontal tube 78. The communicating structure comprises a rotating sleeve 81 which is rotatably connected with the vertical pipe 77, an annular groove 82 which is arranged on the vertical pipe 77, a first communicating hole 83 which is communicated with the vertical pipe 77, and a second communicating hole 84 which is communicated with the horizontal pipe 78, the horizontal pipe 78 is arranged on the rotating sleeve 81, the first communicating hole 83 is positioned in the annular groove 82, the second communicating hole 84 is arranged on the rotating sleeve 81, the annular groove 82 enables the first communicating hole 83 and the second communicating hole 84 to be connected in real time, blocking is avoided, and dirt can not be sucked, of course, more importantly, along with the rotation of the horizontal pipe, the first communicating hole 83 and the second communicating hole 84 are directly communicated and indirectly connected through a gap between the annular groove 82 and the rotating sleeve 81 alternately, under the two conditions, the communicated path can be changed, so that the process of sucking dirt generates vibration which is compared with stable suction, the dirt can be more easily driven from the filter net, for better rotation, the number of the cross tubes 78 is at least two and the cross tubes 78 are evenly distributed along the circumference of the rotating sleeve 81, and two cross tubes 78 are provided in this embodiment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a difficult oil-gas mixture transportation integrated device who blocks up that is difficult for, its characterized in that: the oil outlet pipeline and the oil inlet pipeline are arranged on the prying frame welding main body, and a first high-pressure electric valve is connected between the oil outlet pipeline and the oil inlet pipeline;
the right end of the oil outlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a safety valve and an output pipeline;
the right end of the oil inlet pipeline is also connected with a first high-pressure electric valve, and is sequentially connected with a filtering group and a flow dividing pipe, and the inlet of the oil inlet pipeline is connected with a heater;
at least one group of oil-gas mixed transportation pump set is connected between the output pipeline and the flow dividing pipe, the oil-gas mixed transportation pump set comprises a first gate valve, a check valve, an energy accumulator, an eccentric oil mixed transportation pump and a second high-pressure electric valve which are sequentially connected, and the inlet end of the second high-pressure electric valve is connected with the flow dividing pipe;
the filter group comprises a filter structure and a cleaning structure, the filter structure comprises a shell and a filter screen, the filter screen is arranged in the shell, the space in the filter screen is a first space, the space between the filter screen and the shell is a second space, the shell is provided with an inlet and an outlet, the inlet is directly communicated with the first space, and the outlet is directly communicated with the second space;
the clearance structure includes the blow off pipe and is used for driving the drive arrangement that the blow off pipe goes up and down, the blow off pipe includes the standpipe and violently manages, the standpipe with violently manage inside intercommunication and the two rotates and be connected, the standpipe stretches out outside the casing after first space and second space in proper order, the part that the standpipe stretched out outside the casing is equipped with the drain, the tip of violently managing is equipped with the soil pick-up mouth of uncovered form.
2. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: two ends of the shell are provided with second gate valves which are communicated through a flange plate; the two filter groups are connected in parallel between the oil inlet pipeline and the flow dividing pipe.
3. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: and a return pipeline is also connected to a pipeline between the eccentric oil mixed delivery pump and the second high-pressure electric valve, the outlet end of the return pipeline is connected with the flow dividing pipe, and a ball valve is also arranged on the return pipeline.
4. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: the position that the standpipe rotates to be connected with violently the pipe is equipped with the connectivity, the connectivity includes rotates the cover of rotation of being connected with the standpipe, sets up the ring channel on the standpipe, with the inside first intercommunicating hole of standpipe, with violently the inside second intercommunicating hole that communicates of pipe, violently the pipe sets up and sheathes in rotating, first intercommunicating hole is located the ring channel, the second intercommunicating hole sets up and sheathes in rotating, violently the pipe is two at least and along rotating cover circumference evenly distributed.
5. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: the filter screen is coaxially arranged in the shell.
6. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: the sewage suction port is opposite to the inner side wall of the filter screen, and the sewage suction port is close to the inner wall of the filter screen.
7. The integrated device for oil-gas mixture transportation not prone to being blocked according to claim 1, characterized in that: the horizontal pipes are of blade-shaped flat pipe structures and are at least two, and the horizontal pipes are uniformly distributed along the circumferential direction of the vertical pipe in a fan blade shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588246.1A CN114321718A (en) | 2021-12-23 | 2021-12-23 | Oil-gas mixed transportation integrated device not prone to blockage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111588246.1A CN114321718A (en) | 2021-12-23 | 2021-12-23 | Oil-gas mixed transportation integrated device not prone to blockage |
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| CN114321718A true CN114321718A (en) | 2022-04-12 |
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| CN202111588246.1A Pending CN114321718A (en) | 2021-12-23 | 2021-12-23 | Oil-gas mixed transportation integrated device not prone to blockage |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974151A (en) * | 2011-09-02 | 2013-03-20 | 镇江市科能电力设备有限公司 | Suction-type self-cleaning filter |
| CN109340570A (en) * | 2018-11-25 | 2019-02-15 | 西安大漠石油能源科技工程有限公司 | Skid-mounted oil-gas mixed transportation device |
| CN109603323A (en) * | 2018-12-25 | 2019-04-12 | 西安近代化学研究所 | A kind of cleaner and its method |
| CN209193901U (en) * | 2018-11-26 | 2019-08-02 | 许延军 | A kind of oil-gas gathering and transportation filter device |
| EP3685902A1 (en) * | 2019-01-23 | 2020-07-29 | Rolf Schlicht GmbH | Filter assembly |
| CN214425681U (en) * | 2020-12-31 | 2021-10-19 | 天津海科瑞德科技有限公司 | Oil, gas and water integrated distribution device |
-
2021
- 2021-12-23 CN CN202111588246.1A patent/CN114321718A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974151A (en) * | 2011-09-02 | 2013-03-20 | 镇江市科能电力设备有限公司 | Suction-type self-cleaning filter |
| CN109340570A (en) * | 2018-11-25 | 2019-02-15 | 西安大漠石油能源科技工程有限公司 | Skid-mounted oil-gas mixed transportation device |
| CN209193901U (en) * | 2018-11-26 | 2019-08-02 | 许延军 | A kind of oil-gas gathering and transportation filter device |
| CN109603323A (en) * | 2018-12-25 | 2019-04-12 | 西安近代化学研究所 | A kind of cleaner and its method |
| EP3685902A1 (en) * | 2019-01-23 | 2020-07-29 | Rolf Schlicht GmbH | Filter assembly |
| CN214425681U (en) * | 2020-12-31 | 2021-10-19 | 天津海科瑞德科技有限公司 | Oil, gas and water integrated distribution device |
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