CN114278867A - Multiphase flow mixing and conveying device - Google Patents
Multiphase flow mixing and conveying device Download PDFInfo
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- CN114278867A CN114278867A CN202011641904.4A CN202011641904A CN114278867A CN 114278867 A CN114278867 A CN 114278867A CN 202011641904 A CN202011641904 A CN 202011641904A CN 114278867 A CN114278867 A CN 114278867A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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Abstract
The application provides a multiphase flow mixing and conveying device, which comprises a first tank body, a second tank body and a reversing mechanism; the reversing mechanism comprises a first power mechanism and a second power mechanism, and the first power mechanism and the second power mechanism alternately switch to operate when liquid flows in a reversing mode between the first tank body and the second tank body. Compared with the existing multiphase flow mixing and conveying device, the reversing mechanism does not need to be provided with an electromagnetic valve group or an electromagnetic reversing valve to switch the flow direction of an inlet and an outlet of a power pump, and the controllability and the stability of the multiphase flow mixing and conveying device can be obviously improved.
Description
Technical Field
The application relates to the technical field of fluid conveying, in particular to a multiphase flow mixed conveying device.
Background
The crude oil product is mainly a mixture of oil, water and gas, and also contains a small amount of silt, and is a multiphase mixture. The traditional process for oil and gas production and transportation in oil fields is to separate oil, gas and water and then respectively transport the separated oil, gas and water by using an oil pump, a water pump and a compressor, and has the defects of complex process flow, high investment, difficult operation and maintenance and the like.
The multiphase flow mixed transportation technology is an efficient and economic pumping technology developed in recent years and is a development trend of oil field mining and transportation technologies at home and abroad. Multiphase flow delivery has very high requirements on the stability of the equipment and needs to be able to operate stably for a long time. Chinese patent CN109114433A discloses a multiphase flow mixing and transporting device, which uses a power pump and an electromagnetic valve set or an electromagnetic directional valve to cooperate to drive liquid to circulate back and forth, and in the working process, the opening and closing of the electromagnetic valve set or the electromagnetic directional valve need to be controlled to automatically switch the flow direction of the inlet and the outlet of the power pump to realize reversing and continuous transportation. Because the electromagnetic valve bank or the electromagnetic reversing valve needs to bear larger liquid impact in the reversing process, the requirements on the quality and the control precision of the electromagnetic valve bank or the electromagnetic reversing valve are higher, and the problems of poor controllability and stability of the multiphase flow mixing and conveying device are caused.
Disclosure of Invention
The application provides a multiphase flow mixed transportation device, which can solve the problems that an electromagnetic valve bank or an electromagnetic reversing valve needs to bear large liquid impact when the existing multiphase flow mixed transportation device is reversed, and the requirements on the quality and the control precision of the electromagnetic valve bank or the electromagnetic reversing valve are high, so that the controllability and the stability of the multiphase flow mixed transportation device are not ideal.
The application provides a multiphase flow mixing and conveying device, which comprises a first tank body, a second tank body and a reversing mechanism;
the reversing mechanism drives the liquid in the first tank body and the second tank body to circulate in a reciprocating manner, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity, and the continuous mixing and conveying of liquid, gas or a gas-liquid mixture is realized;
the reversing mechanism comprises a first power mechanism and a second power mechanism, and the first power mechanism and the second power mechanism alternately switch to operate when liquid flows in a reversing mode between the first tank body and the second tank body.
In a possible implementation manner of the present application, the first power mechanism and the second power mechanism are independently and parallel connected between the first tank and the second tank, respectively.
In one possible implementation manner of the present application, the first power mechanism pumps the liquid in the first tank body to the second tank body when operating, and the second power mechanism pumps the liquid in the second tank body to the first tank body when operating.
In a possible implementation manner of the present application, the first power mechanism includes a first power pump, a first pipeline, and a first control valve, the first pipeline is communicated with the first tank, the second tank, and the first power pump, and the first control valve is disposed on the first pipeline and used for turning on or off the first pipeline.
In a possible implementation manner of the present application, the second power mechanism includes a second power pump, a second pipeline, and a second control valve, the second pipeline communicates with the first tank, the second tank, and the second power pump, and the second control valve is disposed on the second pipeline, and is configured to open or close the second pipeline.
In one possible implementation manner of the present application, the first pipeline is turned on, the second pipeline is turned off, and the first power pump pumps the liquid in the first tank to the second tank; or
The first pipeline is closed, the second pipeline is communicated, and the second power pump pumps the liquid in the second tank body to the first tank body.
In a possible implementation manner of the present application, a first circulating liquid inlet and a first circulating liquid outlet are provided on the first tank, and a height difference between the first circulating liquid inlet and the first circulating liquid outlet is greater than zero;
a second circulating liquid inlet and a second circulating liquid outlet are formed in the second tank body, and the height difference between the second circulating liquid inlet and the second circulating liquid outlet is larger than zero;
the inlet of the first pipeline is communicated with the first circulating liquid outlet, and the outlet of the first pipeline is communicated with the second circulating liquid inlet; the inlet of the second pipeline is communicated with the second circulating liquid outlet, and the outlet of the second pipeline is communicated with the first circulating liquid inlet.
In one possible implementation manner of the present application, the number of the first control valves is one, and the first control valves are disposed between the first power pump and the second circulating liquid inlet;
the number of the second control valves is one, and the second control valves are arranged between the second power pump and the first circulating liquid inlet.
In one possible implementation of the present application, the first power pump and/or the second power pump is a variable frequency pump.
In one possible implementation of the present application, the first control valve and the second control valve are pneumatic valves or electric valves.
In one possible implementation manner of the present application, the multiphase flow mixing and conveying device further includes a control system and a liquid level sensor;
the liquid level sensor is used for acquiring liquid level heights in the first tank body and the second tank body;
the control system is respectively in communication connection with the liquid level sensor and the reversing mechanism and controls the reversing mechanism to reverse.
In a possible implementation manner of the present application, the first tank and the second tank are both provided with a fluid inlet, the multiphase fluid mixing and transporting device further includes an input structure, the input structure includes an inlet manifold, and the fluid inlets on the first tank and the second tank are respectively connected to the inlet manifold through inlet check valves.
In a possible implementation manner of the present application, the first tank and the second tank are both provided with a fluid outlet, and the multiphase fluid mixing and transporting device further includes an output structure; the output structure comprises an outlet manifold, and the fluid outlets on the first tank body and the second tank body are respectively connected with the outlet manifold through outlet one-way valves.
The application provides a multiphase flow mixing and conveying device, which comprises a first tank body, a second tank body and a reversing mechanism; the reversing mechanism drives the liquid in the first tank body and the second tank body to circulate in a reciprocating manner, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity, and the continuous mixing and conveying of liquid, gas or a gas-liquid mixture is realized; the reversing mechanism comprises a first power mechanism and a second power mechanism, and the first power mechanism and the second power mechanism alternately switch to operate when liquid flows in a reversing mode between the first tank body and the second tank body. Compared with the existing multiphase flow mixing and conveying device, the reversing mechanism does not need to be provided with an electromagnetic valve group or an electromagnetic reversing valve to switch the flow direction of an inlet and an outlet of a power pump, and the controllability and the stability of the multiphase flow mixing and conveying device can be obviously improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a multiphase flow mixing and conveying device provided by the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a multiphase flow mixing and conveying apparatus provided in the present application. The embodiment of the application provides a multiphase flow mixing and conveying device, which comprises a first tank body 1, a second tank body 2 and a reversing mechanism. The reversing mechanism drives the liquid in the first tank body 1 and the second tank body 2 to circulate in a reciprocating mode, so that the first tank body 1 and the second tank body 2 alternately form a vacuum suction cavity and/or a compression discharge cavity, and continuous mixing and conveying of liquid, gas or a gas-liquid mixture are achieved.
It should be noted that, in the present application, the volume of the first tank 1 and the volume of the second tank 2 may be set according to specific needs, and the volumes are larger, for example, the volume of the first tank 1 and the volume of the second tank 2 are 20m3To 40m3In the meantime.
Furthermore, the volume of the first tank body 1 is equal to that of the second tank body 2, so that the multiphase flow mixing and conveying device occupies a smaller area and has higher conveying efficiency.
When the multiphase flow mixing and conveying device works, a certain amount of liquid needs to be discharged into the first tank 1 and/or the second tank 2 in advance, wherein one possible way is to fill the first tank 1 and the second tank 2 with liquid to discharge air in the first tank 1 and the second tank 2, so as to prevent explosion caused by chemical reaction between oxygen in the air and natural gas.
In the embodiment of the present application, the reversing mechanism includes a first power mechanism and a second power mechanism, and the first power mechanism and the second power mechanism alternately switch to operate when liquid flows in a reversing manner between the first tank 1 and the second tank 2. It should be noted that, in the embodiment of the present application, the reversing mechanism can make the liquid in the first tank 1 flow into the second tank 2, or make the liquid in the second tank 2 flow into the first tank 1 when in operation.
This application through set up first power unit and second power unit in the reversing mechanism, first power unit with the operation is switched in turn when liquid is in first jar of body 1 with the second jar of body 2 is the switching flow makes first jar of body with the second jar of body forms vacuum suction chamber and/or compression discharge chamber in turn, compares current multiphase flow thoughtlessly defeated device, and its switching-over in-process need not set up the inlet and outlet flow direction of solenoid valve group or the switching-over valve switching power pump, can show improvement multiphase flow thoughtlessly defeated device's controllability and stability.
Further, the first power mechanism pumps the liquid in the first tank body 1 into the second tank body 2 when in operation, and the second power mechanism pumps the liquid in the second tank body 2 into the first tank body 1 when in operation. For example, when the first power mechanism operates and the second power mechanism does not operate, the liquid flows into the second tank body 2 from the first tank body 1; when the flow direction of the liquid between the first tank body 1 and the second tank body 2 needs to be switched, namely, the liquid flows into the first tank body 1 from the second tank body 2, the flow direction of the liquid between the first tank body 1 and the second tank body 2 can be realized by switching and operating the first power mechanism and the second power mechanism, namely, the first power mechanism stops operating, and the second power mechanism operates. According to the multiphase flow mixing and conveying device, the flow direction of liquid between the first tank body 1 and the second tank body 2 can be switched only by switching the running states of the first power mechanism and the second power mechanism, the operation and the control are simple, and the controllability and the stability of the multiphase flow mixing and conveying device can be obviously improved.
Specifically, the first power mechanism includes a first power pump 1-11, a first pipeline (not labeled in the figure), and a first control valve 2-10, the first pipeline communicates the first tank 1, the second tank 2, and the first power pump 1-11, and the first control valve 2-10 is disposed on the first pipeline and is used for turning on or off the first pipeline.
In other embodiments of the present application, the first power mechanism may also include only the first power pump 1-11 and the first line.
It can be understood that when the first power pump 1-11 is operated, the first power pump 1-11 pumps the liquid in the first tank 1 into the second tank 2, and the volume of the liquid in the first tank 1 is reduced, so that a vacuum suction cavity is formed in the first tank 1; meanwhile, as the liquid in the first tank 1 is pumped into the second tank 2, the volume of the liquid in the second tank 2 is correspondingly increased, thereby forming a compression discharge chamber in the second tank 2.
In other embodiments of the present application, the first power mechanism may also be other mechanisms that can drive the liquid to flow in the preset direction, which are disclosed in the prior art, and are not limited herein.
Specifically, the second power mechanism includes a second power pump 2-11, a second pipeline (not shown in the figure), and a second control valve 1-10, the second pipeline communicates with the first tank 1, the second tank 2, and the second power pump 2-11, and the second control valve 1-10 is disposed on the second pipeline and is configured to open or close the second pipeline.
In other embodiments of the present application, the second power mechanism may also comprise only the second power pump 2-11 and the second line.
It can be understood that when the second power pump 2-11 is operated, the second power pump 2-11 pumps the liquid in the second tank 2 into the first tank 1, and the volume of the liquid in the second tank 2 is reduced, so that a vacuum suction cavity is formed in the second tank 2; meanwhile, as the liquid in the second tank 2 is pumped into the first tank 1, the volume of the liquid in the first tank 1 is increased accordingly, thereby forming a compression discharge chamber in the first tank 1.
In other embodiments of the present application, the second power mechanism may also be other mechanisms that can drive the liquid to flow in the preset direction, which are disclosed in the prior art, and are not limited herein.
Further, the first control valve 2-10 is opened, the first pipeline is conducted, the second control valve 2-10 is closed, the second pipeline is closed, and the first power pump 1-11 pumps the liquid in the first tank 1 to the second tank 2; or the first control valve 2-10 is closed, the first pipeline is closed, the second control valve 1-10 is opened, the second pipeline is conducted, and the second power pump 2-11 pumps the liquid in the second tank body 2 into the first tank body 1. Further, the first power pump 1-11 pumps the liquid in the first tank 1 to the second tank 2 at a rated rotation speed.
Further, the second power pump 2-11 pumps the liquid in the second tank 2 to the first tank 1 at a rated rotation speed.
Further, the first power pump 1-11 is switched to operate at the rated rotational speed and between 5% and 30% of the rated rotational speed. The second power pump 2-11 is switched between a rated speed and 5% to 30% of the rated speed. For example, when liquid flows from the first tank 1 into the second tank 2, the first power pump 1-11 is operated at a rated rotational speed, and the second power pump 2-11 is operated at 5% to 30% of the rated rotational speed. When the multiphase flow mixing and conveying device needs to be reversed, namely liquid flows into the first tank body 1 from the second tank body 2, the first power pump 1-11 which originally operates at the rated rotating speed is switched to operate between 5% and 30% of the rated rotating speed, and the second power pump 2-11 which originally operates between 5% and 30% of the rated rotating speed is switched to operate at the rated rotating speed.
It should be emphasized that, through the above arrangement, the liquid impact generated by the multiphase flow mixing and conveying device in the reversing process can be reduced, the pressure difference between the two ends of the first control valve 2-10 and the second control valve 1-10 in the reversing process can be reduced, and the operability and stability of the first control valve 2-10 and the second control valve 1-10 can be improved, thereby being beneficial to improving the stability of the multiphase flow mixing and conveying device.
Furthermore, the time for switching the first power pump 1-11 between the rated rotating speed and 5% -30% of the rated rotating speed is equal to the time for reversing the multiphase flow mixing and conveying device, which is beneficial to further improving the stability of the multiphase flow mixing and conveying device.
Furthermore, the time for switching the second power pump 2-11 between the rated rotating speed and 5% -30% of the rated rotating speed is equal to the time for reversing the multiphase flow mixing and conveying device, which is beneficial to further improving the stability of the multiphase flow mixing and conveying device.
Further, the first power pump 1-11 is switched to operate between the rated rotational speed and 10% of the rated rotational speed. The second power pump 2-11 is switched between a nominal speed and 10% of the nominal speed.
Furthermore, the first power pump 1-11 and the second power pump 2-11 are centrifugal pumps, which is beneficial to further improving the stability of the multiphase flow mixing and conveying device.
Further, the first power pump 1-11 and the second power pump 2-11 are variable frequency pumps. It can be understood that the first power pump 1-11 and the second power pump 2-11 are frequency conversion pumps, and the reversing flow of the liquid between the first tank and the second tank can be realized by controlling the working frequency of the first power pump 1-11 and the second power pump 2-11, so that the controllability of the multiphase flow mixing and conveying device in reversing is further improved; meanwhile, the pumping flow rates of the first power pump 1-11 and the second power pump 2-11 can be controlled, so that liquid impact generated in the reversing process is reduced, and the stability of the multiphase flow mixing and conveying device is further improved.
Further, the first line is turned on, the second line is turned off, the first power pump 1-11 is operated at rated power, the second power pump 2-11 is operated at low power, for example, 5% to 30% of rated power, and the first power pump 1-11 pumps the liquid in the first tank 1 into the second tank 2.
Further, the second line is turned on, the first line is turned off, the second power pump 2-11 is operated at rated power, the first power pump 1-11 is operated at low power, for example, 5% to 30% of rated power, and the second power pump 2-11 pumps the liquid in the second tank 2 into the first tank 1.
Further, the rated power of the first power pump 1-11 and the rated power of the second power pump 2-11 are the same, the first power pump 1-11 is operated at the rated power, the second power pump 2-11 is operated at 10% of the rated power, the first power pump 1-11 pumps the liquid in the first tank body 1 into the second tank body 2, or the second power pump 2-11 is operated at the rated power, the first power pump 1-11 is operated at 10% of the rated power, and the second power pump 2-11 pumps the liquid in the second tank body 2 into the first tank body 1.
In other embodiments of the present application, the first line is on, the first power pump 1-11 is operating at rated power or speed, the second power pump 2-11 is not operating, and the first power pump 1-11 pumps the liquid located in the first tank 1 into the second tank 2.
In other embodiments of the present application, the second line is on, the second power pump 2-11 is operating at rated power or speed, the first power pump 1-11 is not operating, and the second power pump 2-11 pumps liquid located in the second tank 2 into the first tank 1.
In the embodiment of the present application, the first power mechanism and the second power mechanism are respectively and independently connected in parallel between the first tank 1 and the second tank 2. That is, the first power mechanism is connected with the first tank body 1 and the second tank body 2, the second power mechanism is connected with the first tank body 1 and the second tank body 2, and the first power mechanism and the second power mechanism respectively and independently operate without mutual influence.
Specifically, the first pipeline communicates the first tank 1, the second tank 2 and the first power pump 1 to 11, and the first control valve 2 to 10 is provided on the first pipeline. The second pipeline is communicated with the first tank body 1, the second tank body 2 and the second power pump 2-11, and the second control valve 1-10 is arranged on the second pipeline. The first pipeline and the second pipeline are arranged in parallel, and the first power pump 1-11 and the second power pump 2-11 respectively operate independently.
In other embodiments of the present disclosure, the first power mechanism is connected to the first tank 1 and the second tank 2, the second power mechanism is connected to the first tank 1 and the second tank 2, and a connection pipeline of the first power valve and the second power valve is connected together through a four-way valve, that is, the first pipeline and the second pipeline are communicated through a four-way valve.
In some embodiments of this application, be equipped with first circulation liquid entry and first circulation liquid export on the first jar of body 1 lateral wall, just first circulation liquid entry with the difference in height of first circulation liquid export is greater than zero, promptly first circulation liquid entry sets up the top of first circulation liquid export, the resistance when being convenient for reduce the feed liquor and make the flowing back more convenient. It can also be understood that the upper part of the second tank body 2 is provided with a second circulating liquid inlet and a second circulating liquid outlet, and the height difference between the second circulating liquid inlet and the first circulating liquid outlet is more than zero.
In some embodiments of the present application, a maintenance valve 1-2 and a maintenance valve 2-1 are disposed on the first pipeline, the maintenance valve 1-2 is disposed at the first circulation liquid outlet, and the maintenance valve 2-1 is disposed at the second circulation liquid inlet. And a maintenance valve 1-1 and a maintenance valve 2-2 are arranged on the second pipeline, the maintenance valve 1-1 is arranged at the first circulating liquid inlet, and the maintenance valve 2-2 is arranged at the second circulating liquid outlet. The maintenance valves 1-2, 2-1, 1-1 and 2-2 are mainly used for closing the first pipeline and the second pipeline during maintenance, and the maintenance valves are in a normally open state when the device operates.
Specifically, the inlet of the first pipeline is communicated with the first circulating liquid outlet, and the outlet of the first pipeline is communicated with the second circulating liquid inlet; the liquid in the first tank body 1 enters the second tank body 2 through a first circulating liquid outlet, a first pipeline inlet, a maintenance valve 1-2, a first power pump 1-11, a first control valve 2-10, a maintenance valve 2-1, a first pipeline outlet and a second circulating liquid inlet. The inlet of the second pipeline is communicated with the second circulating liquid outlet, and the outlet of the second pipeline is communicated with the first circulating liquid inlet; and liquid in the second tank body 2 enters the first tank body 1 through a second circulating liquid outlet, a second pipeline inlet, a maintenance valve 2-2, a second power pump 2-11, a second control valve 1-10, a maintenance valve 1-1, a second pipeline outlet and a first circulating liquid inlet.
In this embodiment, the number of the first control valves 2 to 10 is one, and the first control valves are arranged between the first power pumps 1 to 11 and the second circulating liquid inlet; the number of the second control valves 1 to 10 is one, and the second control valves are arranged between the second power pumps 2 to 11 and the first circulating liquid inlet.
It is understood that the first control valve 2-10 and the second control valve 1-10 can be pneumatic valves or electric valves, and of course, other valve bodies that can function to open and close the pipeline can be used, and are not limited herein.
In some embodiments of the present application, the multiphase flow mixing and transportation device further includes a control system 3, the first tank 1 is provided with a first liquid level sensor 1-7, and the second tank 2 is provided with a second liquid level sensor 2-7. The first and second level sensors 1-7 and 2-7 collect the liquid level heights in the first and second tanks 1 and 2. The control system 3 is respectively in communication connection with the liquid level sensors 1-7, the second liquid level sensors 2-7 and the reversing mechanism and controls the reversing mechanism to reverse.
It will be appreciated that the provision of the control system 3 and a level sensor 1-7 and a second level sensor 2-7 in the multiphase flow device facilitates an increased degree of automation of the multiphase flow device. Of course, in other embodiments of the present application, the multiphase flow mixing and conveying device may further include a pressure sensor (not shown in the drawings), and the pressure sensor collects pressure values in the first tank 1 and the second tank 2, which is beneficial to improving the safety of the multiphase flow mixing and conveying device.
Specifically, the control system 3 is respectively connected with a first power pump 1-11, a second power pump 2-11, a first control valve 2-10 and a second control valve 1-10 through control lines, controls the first tank 1 and the second tank 2 to be conducted or closed by controlling the opening or closing of the first control valve 2-10 and the second control valve 1-10, and controls the liquid in the first tank 1 to be pumped to the second tank 2 or the liquid in the second tank 2 to be pumped to the first tank 1 by controlling the opening or closing of the first power pump 1-11 and the second power pump 2-11. For example, when the first liquid level sensor 1-7 detects that the liquid level in the first tank 1 reaches the top dead center position (the top of the tank), the first liquid level sensor 1-7 transmits a liquid level signal to the control system 3, the control system 3 sends a control command to open the first control valve 2-10 according to the liquid level signal, open the first power pump 1-11, and the liquid in the first tank 1 is discharged into the second tank under the action of the first power pump 1-11.
At this time, in the multiphase flow mixing and conveying device, the first tank 1 is in a suction state, and the second tank 2 is in a discharge state. Under the action of negative pressure at the inlet of the first power pump 1-11, the liquid level in the first tank body 1 begins to descend, the upper part of the first tank body 1 forms vacuum, and under the action of positive pressure at the outlet of the first power pump 1-11, the liquid level in the second tank body 2 rises. When the liquid level in the first tank body 1 is lowered to the bottom dead center position (the first circulating liquid outlet), the first liquid level sensor 1-7 transmits a liquid level signal to the control system 3, the control system 3 sends a control instruction according to the liquid level signal to open the second control valve 1-10 and open the second power pump 2-11, and the liquid in the second tank body 2-is discharged into the first tank body 1 under the action of the second power pump 2-11.
At this time, in the multiphase flow mixing and conveying device, the first tank 1 is in a discharge state, and the second tank 2 is in a suction state. Under the action of negative pressure at an inlet of the second power pump 2-11, the liquid level in the second tank body 2 begins to descend, vacuum is formed at the upper part in the second tank body 2, under the action of positive pressure at an outlet of the second power pump 2-11, the liquid level in the first tank body 1 rises until the liquid level in the second tank body 2 begins to descend to a bottom dead center position (a second circulating liquid outlet) and begins to change direction for the next time, and thus continuous mixing and conveying of liquid, gas or gas-liquid mixture are repeatedly realized.
In some embodiments of the present application, the first tank 1 and the second tank 2 are both provided with a fluid inlet and a fluid outlet, and further, the multiphase fluid mixing and transporting device further includes an input structure and an output structure, the input structure includes an inlet manifold 4, and the fluid inlets on the first tank 1 and the second tank 2 are respectively connected with the inlet manifold 4 through a first inlet check valve 1-5 and a second inlet check valve 2-5; the output structure comprises an outlet manifold 5, and the fluid outlets on the first tank body 1 and the second tank body 2 are respectively connected with the outlet manifold 5 through a first outlet one-way valve 1-6 and a second outlet one-way valve 2-6. Of course, in other embodiments of the present application, an opening may be provided only on the upper portion of the first tank 1 and the upper portion of the second tank 2 for fluid to flow into or out of the respective tanks, and the openings may be connected to the input structure and the output structure through a two-way valve, respectively, without being limited thereto.
In other embodiments of the present application, the input structure is provided with a maintenance valve 1-3 and a maintenance valve 2-3, the maintenance valve 1-3 is disposed at the fluid inlet of the first tank, and the maintenance valve 2-3 is disposed at the fluid inlet of the second tank. And the output structure is provided with a maintenance valve 1-4 and a maintenance valve 2-4, the maintenance valve 1-4 is arranged at the fluid outlet of the first tank, and the maintenance valve 2-4 is arranged at the fluid outlet of the second tank. The maintenance valves 1-3, 2-3, 1-4 and 2-4 are mainly used for closing the input structure and the output structure during maintenance, and are in a normally open state when the device operates.
It will be appreciated that when the first tank 1 forms a vacuum suction chamber and the second tank 2 forms a pressure discharge chamber, the first inlet check valve 1-5 between the fluid inlet and the inlet header 4 is open, the first outlet check valve 1-6 between the fluid outlet and the outlet header 5 is closed, the second outlet check valve 2-6 between the fluid outlet and the outlet header 5 is open, and the second inlet check valve 2-5 between the fluid inlet and the inlet header 4 is closed.
At this time, the fluid in the inlet manifold 4 is sucked into the first tank 1, the fluid is separated from the gas after being in the first tank 1, the gas is gathered at the top of the first tank 1, and the liquid moves downwards along with the liquid level; the liquid level in the second tank 2 rises and the compressed gas or liquid in the second tank 2 is discharged into an outlet header 5 through a maintenance valve 2-4 and a second outlet check valve 2-6 under the action of a first power pump 1-11. When the second tank 2 forms a vacuum suction chamber and the first tank 1 forms a compression discharge chamber, the first inlet check valve 1-5 between the fluid inlet and the inlet header 4 is closed, the first outlet check valve 1-6 between the fluid outlet and the outlet header 5 is opened, the second outlet check valve 2-6 between the fluid outlet and the outlet header 5 is closed, and the second inlet check valve 2-5 between the fluid inlet and the inlet header 4 is opened.
At this time, the fluid in the inlet header 4 is sucked into the second tank 2, after the fluid is in the second tank 2, the liquid and the gas are separated, the gas is gathered at the top of the second tank 2, and the liquid moves downwards along with the liquid level; the liquid level in the first tank 1 rises and the compressed gas or liquid in the first tank 1 is discharged into an outlet header 5 through a maintenance valve 1-4 and a first outlet check valve 1-6 under the action of a second power pump 2-11.
In some embodiments of the present application, the inlet header 4 and the outlet header 5 are connected by a maintenance valve 6, and when the multiphase flow mixing and transportation device fails, the maintenance valve 6 is opened, the maintenance valves 1-3, 1-4, 2-3 and 2-4 are closed, and the mixed fluid can be directly discharged through the outlet header 5.
In some embodiments of the present application, the first tank 1 and the second tank 2 are respectively provided with a first vent valve 1-9 and a second vent valve 2-9, and the first vent valve 1-9 and the second vent valve 2-9 are arranged at the upper parts of the first tank 1 and the second tank 2 for venting gas in the tanks; the first tank body 1 and the second tank body 2 are also respectively provided with a first liquid discharge valve 1-8 and a second liquid discharge valve 2-8, and the first liquid discharge valve 1-8 and the second liquid discharge valve 2-8 are arranged at the lower parts of the first tank body 1 and the second tank body 2 and are used for discharging liquid in the tank bodies.
The multiphase flow mixing and conveying device provided by the embodiment of the present application is described in detail above, and the principle and the embodiment of the present invention are explained in the present application by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (13)
1. A multiphase flow mixing and conveying device is characterized by comprising a first tank body, a second tank body and a reversing mechanism;
the reversing mechanism drives the liquid in the first tank body and the second tank body to circulate in a reciprocating manner, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity, and the continuous mixing and conveying of liquid, gas or a gas-liquid mixture is realized;
the reversing mechanism comprises a first power mechanism and a second power mechanism, and the first power mechanism and the second power mechanism alternately switch to operate when liquid flows in a reversing mode between the first tank body and the second tank body.
2. The multiphase flow mixing and conveying device as claimed in claim 1, wherein the first power mechanism and the second power mechanism are independently connected in parallel between the first tank and the second tank, respectively.
3. A multiphase flow commingling and delivery device of claim 1, wherein said first power mechanism is operable to pump fluid from said first tank to said second tank, and wherein said second power mechanism is operable to pump fluid from said second tank to said first tank.
4. A multiphase flow mixing and conveying device according to claim 3, wherein the first power mechanism comprises a first power pump, a first pipeline and a first control valve, the first pipeline is communicated with the first tank body, the second tank body and the first power pump, and the first control valve is arranged on the first pipeline and is used for conducting or closing the first pipeline.
5. The multiphase flow mixing and conveying device according to claim 4, wherein the second power mechanism comprises a second power pump, a second pipeline and a second control valve, the second pipeline is communicated with the first tank body, the second tank body and the second power pump, and the second control valve is arranged on the corresponding second pipeline and used for conducting or closing the second pipeline.
6. The multiphase flow commingling and conveying device of claim 5, wherein the first pipeline is open, the second pipeline is closed, and the first power pump pumps the liquid in the first tank to the second tank; or
The first pipeline is closed, the second pipeline is communicated, and the second power pump pumps the liquid in the second tank body to the first tank body.
7. A multiphase flow mixing and conveying device according to claim 5, wherein the first tank body is provided with a first circulating liquid inlet and a first circulating liquid outlet, and the height difference between the first circulating liquid inlet and the first circulating liquid outlet is larger than zero;
a second circulating liquid inlet and a second circulating liquid outlet are formed in the second tank body, and the height difference between the second circulating liquid inlet and the second circulating liquid outlet is larger than zero;
the inlet of the first pipeline is communicated with the first circulating liquid outlet, and the outlet of the first pipeline is communicated with the second circulating liquid inlet; the inlet of the second pipeline is communicated with the second circulating liquid outlet, and the outlet of the second pipeline is communicated with the first circulating liquid inlet.
8. The multiphase flow mixing and conveying device according to claim 7, wherein the number of the first control valves is one, and the first control valves are arranged between the first power pump and the second circulating liquid inlet;
the number of the second control valves is one, and the second control valves are arranged between the second power pump and the first circulating liquid inlet.
9. A multiphase flow commingling and transportation device of claim 5, wherein said first power pump and/or said second power pump is a variable frequency pump.
10. The multiphase flow commingling and conveying device of claim 5, wherein said first control valve and said second control valve are pneumatic valves or electric valves.
11. The multiphase flow mixing and conveying device as recited in claim 1, further comprising a control system and a liquid level sensor;
the liquid level sensor is used for acquiring liquid level heights in the first tank body and the second tank body;
the control system is respectively in communication connection with the liquid level sensor and the reversing mechanism and controls the reversing mechanism to reverse.
12. The multiphase fluid mixing and transportation device as claimed in any one of claims 1 to 11, wherein each of the first tank and the second tank is provided with a fluid inlet, the multiphase fluid mixing and transportation device further comprises an input structure, the input structure comprises an inlet manifold, and the fluid inlets of the first tank and the second tank are respectively connected with the inlet manifold through inlet check valves.
13. The multiphase fluid mixing and transportation device as claimed in any one of claims 1 to 11, wherein each of the first tank and the second tank is provided with a fluid outlet, and the multiphase fluid mixing and transportation device further comprises an output structure; the output structure comprises an outlet manifold, and the fluid outlets on the first tank body and the second tank body are respectively connected with the outlet manifold through outlet one-way valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011641904.4A CN114278867A (en) | 2020-12-31 | 2020-12-31 | Multiphase flow mixing and conveying device |
| PCT/CN2021/141859 WO2022143593A1 (en) | 2020-12-31 | 2021-12-28 | Multi-phase flow mixing and delivering device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011641904.4A CN114278867A (en) | 2020-12-31 | 2020-12-31 | Multiphase flow mixing and conveying device |
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| CN202011641904.4A Pending CN114278867A (en) | 2020-12-31 | 2020-12-31 | Multiphase flow mixing and conveying device |
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Cited By (1)
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| CN114754292A (en) * | 2022-05-05 | 2022-07-15 | 济南林青铸造技术有限公司 | Intelligent control liquid continuous accurate quantitative output system and operation method thereof |
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| JP4450934B2 (en) * | 2000-03-24 | 2010-04-14 | 日本炭酸瓦斯株式会社 | Barometric pressure control device |
| CN102230461B (en) * | 2011-06-09 | 2014-01-01 | 刘庆明 | Vacuum extraction method and device |
| CN105604921A (en) * | 2015-10-26 | 2016-05-25 | 杭州普普科技有限公司 | Multi-medium non-contact type continuous conveying device |
| CN206830145U (en) * | 2017-06-09 | 2018-01-02 | 山东泰克立德能源工程有限公司 | Well casing gas recovery device |
| CN109114433A (en) * | 2018-10-31 | 2019-01-01 | 官天日 | Two-chamber liquid back and forth drives multi-phase pipeline method and device thereof |
| CN212130752U (en) * | 2020-04-26 | 2020-12-11 | 潍坊胜利石化机械有限公司 | Reciprocating type diaphragm oil-gas mixed transportation device |
| CN214306517U (en) * | 2020-12-28 | 2021-09-28 | 官天日 | Multiphase flow mixing and conveying device |
| CN112747251A (en) * | 2020-12-28 | 2021-05-04 | 广东管辅能源科技有限公司 | Multiphase flow mixing and conveying device |
| CN214171960U (en) * | 2020-12-31 | 2021-09-10 | 广东管辅能源科技有限公司 | Multiphase flow mixing and conveying device |
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2020
- 2020-12-31 CN CN202011641904.4A patent/CN114278867A/en active Pending
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| CN114754292A (en) * | 2022-05-05 | 2022-07-15 | 济南林青铸造技术有限公司 | Intelligent control liquid continuous accurate quantitative output system and operation method thereof |
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