Multiphase flow intelligent control mixed transportation system

Abstract

The utility model discloses a multiphase flow intelligent control mixed transportation system which comprises a suction and extraction tank, a separation pressurization mixed transportation tank, an intelligent control cabinet, a pump body, a variable frequency motor, a transmission mechanism and at least one group of continuous suction and extraction units, an inlet and a plurality of outlets are formed in the surface of the pump body, and the suction and extraction tank is connected with the inlet of the pump body through a first pipeline; the separation pressurization mixed conveying tank is connected with a plurality of outlets of the pump body through a plurality of second pipelines, the intelligent control cabinet is electrically connected with the variable frequency motor, the continuous suction and extraction unit comprises two suction and extraction assemblies, and the variable frequency motor is connected with the continuous suction and extraction unit through a transmission mechanism; and when one of the suction and extraction assemblies discharges the medium into the separation and pressurization mixed transportation tank, the other suction and extraction assembly sucks and extracts the medium in the suction and extraction tank when the other suction and extraction assembly discharges the medium into the separation and pressurization mixed transportation tank. The device is simple and reliable in structure, can realize efficient and continuous conveying of gas, solid and liquid mixtures, and can be used for absorption and recovery as well as reinjection.

Description

TECHNICAL FIELD

[0001] The utility model relates to medium conveying device technical field, especially a kind of multiphase flow intelligent control mixed transport system. BACKGROUND

[0002] In oil exploitation, oil well production often accompanies with a certain amount of natural gas, water and solid particles. In order to realize the purpose of reducing wellhead back pressure, increasing crude oil production, improving development economic benefit and achieving oil and gas closed conveying, oil and gas mixed transport technology is more and more widely applied to oil and gas development.

[0003] Oil and gas mixed transport technology is a new technology that mixes and pressurizes crude oil production and directly transports it to the joint station. Compared with the traditional oil production process, it can build less gas pipeline and reduce oil and gas separation equipment. For offshore oilfield, it can reduce platform area. Oil and gas mixed transport technology can not only make full use of energy, but also improve environmental conditions, and its economic and social benefits are very considerable.

[0004] The utility model patent with application number CN202023351253.3 discloses a multiphase flow mixed transport device, which includes 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 reciprocate and circulate, so that the first tank body and the second tank body alternately form a vacuum suction cavity and / or a compression discharge cavity to realize continuous transportation of liquid, gas or gas-liquid mixture. In actual use, the structure has the following defects: (1) first, the reversing mechanism drives the liquid in the first tank body and the second tank body to reciprocate and circulate, which not only has a complex structure, but also cannot perform vacuum suction and compression discharge simultaneously, with low efficiency; (2) it is only suitable for transportation of liquid, gas or gas-liquid mixture, and is not suitable for gas-solid-liquid mixed transportation.

[0005] Therefore, it is necessary to develop a multiphase flow intelligent control mixed transport system that can realize continuous transportation of gas, solid and liquid mixture. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a multiphase flow intelligent control mixed transport system. The utility model not only has a simple and reliable structure, but also can be applied to severe conditions of gas-solid-liquid multiphase flow medium output, pressurization, separation and mixed transport, realize efficient continuous transportation of gas, solid and liquid single or mixture, can be sucked and collected, and can also be injected back.

[0007] To achieve the above object, the utility model provides the following technical scheme: Multi -phase flow intelligent control mixes and transports the system, including the suction tank, the separation pressure boost mixes and transports the jar, the intelligent control cabinet, the pump body, the frequency conversion motor, the transmission mechanism and at least one group of setting in the continuous suction unit of pump body, be equipped with suction import on the suction tank, the separation pressure boost mixes and transports the jar from top to bottom and be equipped with gas export, liquid export and solid export in proper order, the pump body surface is equipped with import and a plurality of exports, the suction tank is connected with the import of pump body through the first pipeline, the separation pressure boost mixes and transports the jar is connected with a plurality of exports of pump body through a plurality of second pipelines, the intelligent control cabinet is connected with frequency conversion motor through wire, the continuous suction unit includes two groups of suction components, the frequency conversion motor is connected with the continuous suction unit linkage through the transmission mechanism, when one group of suction components absorbs the medium in the suction tank, another group of suction components discharges the medium to the separation pressure boost mixes and transports the jar, and when one group of suction components discharges the medium to the separation pressure boost mixes and transports the jar, another group of suction components absorbs the medium in the suction tank.

[0008] Through adopt above technical scheme, when carrying out the suction operation, can realize the continuous uninterrupted suction operation, that is, the discharge of medium while suction, significantly improve the medium conveying efficiency, it can suction, also can back injection, can carry out gas, solid, liquid mixed continuous conveying, also can carry out the conveying of gas, solid, liquid any two mixtures, also can carry out the conveying of gas, solid, liquid any single medium, can be applicable to gas, solid, liquid multiphase flow medium output, pressure boost, separation, mixed conveying severe working condition.

[0009] The utility model further provides, the suction component includes cylinder body, piston, suction valve ear, discharge valve ear and output pipe, the pump body is separated with transmission cavity and medium cavity through the baffle in, the import and a plurality of exports of pump body surface are linked together with medium cavity, the cylinder body is installed in the baffle corresponding transmission cavity's one side, the piston is movably arranged in the cylinder body, and the piston is equipped with the piston rod connected with the transmission mechanism, the output pipe is installed in the baffle corresponding medium cavity's one side and is linked together with corresponding export, the baffle is equipped with the suction mouth that links together medium cavity with the inside of cylinder body and the discharge port that links together the cylinder body with output pipe, the suction valve ear and discharge valve ear are installed on the suction mouth and discharge port respectively, when the piston moves towards the direction away from the baffle, the suction valve ear opens the suction mouth, and the discharge valve ear closes the discharge port, when the piston moves towards the direction close to the baffle, the suction valve ear closes the suction mouth, and the discharge valve ear opens the discharge port.

[0010] Through adopt above technical scheme, adopt the piston type structure and realize the multi -phase flow, that is, the efficient continuous conveying of gas, solid, liquid mixture, overcome the extreme requirement of gas, solid, liquid mixture to pump valve.

[0011] The utility model further sets up, the suction valve ear includes with the transmission mechanism matched suction valve stem, sets up on the suction valve stem suction valve petal and is used for driving the first elastic piece of suction valve stem and suction valve petal reset, the discharge valve ear includes with the transmission mechanism matched discharge valve stem, sets up on the discharge valve stem discharge valve petal and is used for driving the second elastic piece of discharge valve stem and discharge valve petal reset.

[0012] Through adopting the technical scheme, the suction valve ear and the discharge valve stem cooperate with the piston structure to open and close, the medium suction and discharge are realized, and the structure is stable and reliable.

[0013] The utility model further sets up, the transmission mechanism includes driving crankshaft and driven crankshaft, driving crankshaft and driven crankshaft rotation sets up in the pump body, and driving crankshaft and driven crankshaft are linked through transmission piece, the variable frequency motor is linked with driving crankshaft and is used for driving driving crankshaft rotation, driving crankshaft is provided with a plurality of main shaft cam along the axial direction, and the direction of every adjacent two main shaft cams is opposite, the main shaft cam is connected with corresponding piston rod and is used for pushing and pulling piston and moves along the cylinder body axial displacement, driven crankshaft is provided with a plurality of from shaft cam along the axial direction, and the direction of every adjacent two from shaft cams is opposite, and suction valve stem and discharge valve stem are matched with adjacent two from shaft cams respectively.

[0014] Through adopting the technical scheme, driving crankshaft and driven crankshaft are connected through transmission piece, that is, when the variable frequency motor drives driving crankshaft to rotate, driven crankshaft rotates simultaneously, realizes the movement of piston, and corresponding suction valve ear and discharge valve ear carry out opening and closing action, only one variable frequency motor can realize the linkage of multiple structures, not only the cost is lower, and the structure stability is better.

[0015] The utility model further sets up, the transmission piece is gear transmission assembly or chain transmission assembly or belt transmission assembly.

[0016] Through adopting the technical scheme, it is multiple setting mode of transmission piece, can realize the linkage of driving crankshaft and driven crankshaft.

[0017] The utility model further sets up, the piston outer circle face is equipped with the sealing ring for constituting sealed cooperation with the cylinder body inner circle face.

[0018] Through adopting the technical scheme, the sealing property between the two can be realized, and the medium leakage from the gap between the two is avoided.

[0019] The utility model further sets up, the first check valve only allowing medium to enter the inside of pump body is equipped at the import of pump body, and the second check valve only allowing medium to discharge pump body outside is equipped at the export of pump body.

[0020] By adopting the technical scheme, the first check valve and the second check valve not only prevent backflow, but also have the effects of reducing noise and breaking tail flow.

[0021] The utility model further sets up, be equipped with the lubricating oil groove in the pump body for delivering lubricating oil to every lubricating point.

[0022] By adopting the technical scheme, the lubricating oil is delivered to every lubricating point by the oil pump, every transmission component in the pump body can be precisely lubricated, the wear of parts is reduced, and the overall service life is improved.

[0023] The utility model further sets up, multiple continuous suction unit all are arranged in the same side of driving crankshaft, and evenly distribute along driving crankshaft axial.

[0024] By adopting the technical scheme, it is the first kind of setting mode of continuous suction unit, has the advantage of efficient transmission.

[0025] The utility model further sets up, multiple continuous suction unit all are arranged in the driving crankshaft both sides, and the continuous suction unit of both sides evenly distributes along driving crankshaft axial.

[0026] By adopting the technical scheme, it is the second kind of setting mode of continuous suction unit, and the mixing efficiency can be further improved.

[0027] The utility model further sets up, the separation pressure boost mixed transport tank is personally experienced sth, and every second pipeline inner end position is equipped with the porous baffle, and the bottom position of porous baffle is equipped with the discharge gate.

[0028] By adopting the technical scheme, not only can the pressure relief effect be achieved, but also the medium impact on the inner wall of the tank can be avoided, the separation pressure boost mixed transport tank can be protected, and the noise can be reduced.

[0029] The utility model further sets up, be equipped with suction liquid level sensor interface and suction pressure frequency conversion sensor interface on the suction tank, first liquid level sensor and first pressure frequency conversion sensor are respectively installed on suction liquid level sensor interface and suction pressure frequency conversion sensor interface, be equipped with mixed transport liquid level sensor interface and mixed transport pressure frequency conversion sensor interface on the separation pressure boost mixed transport tank, second liquid level sensor and second pressure frequency conversion sensor are respectively installed on mixed transport liquid level sensor interface and mixed transport pressure frequency conversion sensor interface, be equipped with the detection element for detecting the temperature and pressure and flow in the cylinder body, first liquid level sensor, first pressure frequency conversion sensor, second liquid level sensor, second pressure frequency conversion sensor, detection element all are electrically connected through wire with intelligent control cabinet.

[0030] By adopting the technical scheme, the internal important data information (such as pressure, liquid level, temperature, etc.) of the suction tank, the separation and pressurization mixed transport tank and the cylinder body can be acquired in real time by the sensors, so that the intelligent control cabinet can control the working state (such as start-stop, rotating speed, etc.) of the variable frequency motor in real time and accurately.

[0031] The utility model further is provided with, be equipped with the suction safety valve interface on the suction tank, be equipped with the first safety valve on the suction safety valve interface, be equipped with the mixed transport safety valve interface on the separation and pressurization mixed transport tank, be equipped with the second safety valve on the mixed transport safety valve interface.

[0032] By adopting the technical scheme, the internal important data information (such as pressure, liquid level, temperature, etc.) of the suction tank, the separation and pressurization mixed transport tank and the cylinder body can be acquired in real time by the sensors, so that the intelligent control cabinet can control the working state (such as start-stop, rotating speed, etc.) of the variable frequency motor in real time and accurately. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the first visual angle structural schematic drawing of the utility model whole;

[0034] Figure 2 It is the structure schematic drawing of the utility model continuous suction unit;

[0035] Figure 3 It is the second visual angle structural schematic drawing of the utility model whole.

[0036] In the drawing:

[0037] 1, suction tank; 2, separation booster mixed transport tank; 3, intelligent control cabinet; 4, pump body; 5, variable frequency motor; 7, transmission mechanism; 8, continuous suction unit; 9, suction inlet; 10, gas outlet; 11, liquid outlet; 12, solid outlet; 13, inlet; 14, outlet; 15, first pipeline; 16, second pipeline; 17, suction assembly; 18, cylinder body; 19, piston; 20, suction valve lug; 21, discharge valve lug; 22, output pipe; 23, partition; 24, transmission cavity; 25, medium cavity; 26, piston rod; 27, suction port; 28, discharge port; 29, suction valve stem; 30, suction valve flap; 31, first elastic member; 32, discharge valve stem; 33, discharge valve flap; 34, second elastic member; 35, driving crankshaft; 36, driven crankshaft; 37, transmission member; 38, main shaft cam; 39, from shaft cam; 40, first check valve; 41, second check valve; 42, lubricating oil groove; 43, perforated baffle; 44, blanking port; 45, suction liquid level sensor interface; 46, suction pressure frequency conversion sensor interface; 47, first liquid level sensor; 48, first pressure frequency conversion sensor; 49, mixed transport liquid level sensor interface; 50, mixed transport pressure frequency conversion sensor interface; 51, second liquid level sensor; 52, second pressure frequency conversion sensor; 53, detection element; 54, suction safety valve interface; 55, first safety valve; 56, mixed transport safety valve interface; 57, second safety valve. DETAILED DESCRIPTION

[0038] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Embodiment: as shown in the accompanying drawings Figures 1-3The illustrated multiphase flow intelligent control mixed conveying system comprises a suction tank 1, a separation and pressurization mixed conveying tank 2, an intelligent control cabinet 3, a pump body 4, a variable frequency motor 5 (the variable frequency motor 5 can be speed-adjusted according to the working condition, and high frequency is used to realize pressurization, pressure conveying flow and safety requirements), a transmission mechanism 7 and at least one set of continuous suction units 8 arranged in the pump body 4. The suction tank 1 is provided with a suction inlet 9. The separation and pressurization mixed conveying tank 2 is sequentially provided with a gas outlet 10, a liquid outlet 11 and a solid outlet 12 from top to bottom. The pump body 4 is provided with an inlet 13 and a plurality of outlets 14. The suction tank 1 is connected with the inlet 13 of the pump body 4 through a first pipeline 15. The separation and pressurization mixed conveying tank 2 is connected with the plurality of outlets 14 of the pump body 4 through a plurality of second pipelines 16. The intelligent control cabinet 3 is electrically connected with the variable frequency motor 5 through wires. The continuous suction unit 8 comprises two sets of suction assemblies 17. The variable frequency motor 5 is connected with the continuous suction unit 8 through the transmission mechanism 7, so that when one set of suction assemblies 17 sucks the medium in the suction tank 1, the other set of suction assemblies 17 discharges the medium into the separation and pressurization mixed conveying tank 2, and when one set of suction assemblies 17 discharges the medium into the separation and pressurization mixed conveying tank 2, the other set of suction assemblies 17 sucks the medium in the suction tank 1. The multiphase flow can be a mixture composed of oil, natural gas, water and mortar. During the suction operation, continuous and uninterrupted suction operation can be realized, that is, the medium is discharged while being sucked, which significantly improves the medium conveying efficiency. The system can suck, inject, continuously convey gas, solid and liquid mixtures, convey any two mixtures of gas, solid and liquid, convey any single medium of gas, solid and liquid, and be suitable for output, pressurization, separation and mixed conveying of multiphase flow medium.

[0040] As shown in the accompanying Figure 1 and the accompanying Figure 2As shown, the suction assembly 17 includes a cylinder 18, a piston 19, a suction valve lug 20, a discharge valve lug 21 and an output pipe 22; the pump body 4 is divided by a partition 23 into a transmission cavity 24 and a medium cavity 25, the inlet 13 and the plurality of outlets 14 on the surface of the pump body 4 are in communication with the medium cavity 25, the cylinder 18 is installed on the side of the partition 23 corresponding to the transmission cavity 24, and the internal space of the cylinder 18 is separated from the medium cavity 25, the piston 19 is movably arranged in the cylinder 18, and the piston 19 is provided with a piston rod 26 connected with the transmission mechanism 7, the output pipe 22 is installed on the side of the partition 23 corresponding to the medium cavity 25 and is in communication with the corresponding outlet 14, the partition 23 is provided with a suction port 27 connecting the medium cavity 25 with the internal space of the cylinder 18 and a discharge port 28 connecting the cylinder 18 with the output pipe 22, and the suction valve lug 20 and the discharge valve lug 21 are respectively installed on the suction port 27 and the discharge port 28; when the piston 19 moves away from the partition 23, the suction valve lug 20 opens the suction port 27 and the discharge valve lug 21 closes the discharge port 28, and when the piston 19 moves towards the partition 23, the suction valve lug 20 closes the suction port 27 and the discharge valve lug 21 opens the discharge port 28. The piston 19 type structure is adopted to realize multiphase flow, that is, to realize efficient and continuous conveying of gas, solid and liquid mixture, and the extreme requirements of the gas, solid and liquid mixture on the pump valve are overcome.

[0041] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, the suction valve lug 20 includes a suction valve rod 29 matched with the transmission mechanism 7, a suction valve flap 30 arranged on the suction valve rod 29 and a first elastic member 31 for driving the suction valve rod 29 and the suction valve flap 30 to reset, and the discharge valve lug 21 includes a discharge valve rod 32 matched with the transmission mechanism 7, a discharge valve flap 33 arranged on the discharge valve rod 32 and a second elastic member 34 for driving the discharge valve rod 32 and the discharge valve flap 33 to reset, wherein the suction valve flap 30 and the discharge valve flap 33 both have a first conical sealing surface, the suction port 27 and the discharge port 28 both have a second conical sealing surface, the first elastic member 31 and the second elastic member 34 can adopt springs, one end of the first elastic member 31 is relatively fixed and can be fixedly connected in the cylinder 18, the other end is fixedly connected with the suction valve flap 30 or the suction valve rod 29, and the second elastic member 34 is the same. The suction valve lug 20 and the discharge valve rod 32 cooperate with the piston 19 structure to realize one opening and one closing, so as to realize the suction and discharge of the medium, and the structure is stable and reliable.

[0042] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2As shown, the transmission mechanism 7 includes a driving crankshaft 35 and a driven crankshaft 36, which are rotatably arranged on the pump body 4 and are connected in linkage through a transmission member 37. The variable frequency motor 5 is connected in linkage with the driving crankshaft 35 for driving the driving crankshaft 35 to rotate. The driving crankshaft 35 is axially provided with a plurality of main shaft cams 38, each adjacent two of which are oppositely directed, and in this embodiment, are arranged left and right. The main shaft cams 38 are connected with corresponding piston rods 26 for pushing and pulling the pistons 19 to axially displace along the cylinder body 18. The driven crankshaft 36 is axially provided with a plurality of driven shaft cams 39, each adjacent two of which are oppositely directed, and in this embodiment, are arranged left and right. The suction valve rod 29 and the discharge valve rod 32 are respectively matched with adjacent two driven shaft cams 39. The driving crankshaft 35 and the driven crankshaft 36 are connected through the transmission member 37, that is, when the variable frequency motor 5 drives the driving crankshaft 35 to rotate, the driven crankshaft 36 is simultaneously rotated, so that the pistons 19 move while the corresponding suction valve ears 20 and discharge valve ears 21 are opened and closed. Only one variable frequency motor 5 can realize linkage of multiple structures, which is not only lower in cost, but also better in structural stability.

[0043] More specifically, the transmission member 37 is a gear transmission assembly, a chain transmission assembly or a belt transmission assembly. (1) The gear transmission assembly includes a driving gear arranged on the driving crankshaft 35 and a driven gear arranged on the driven crankshaft 36, which are engaged with each other. (2) The chain transmission assembly includes a driving sprocket arranged on the driving crankshaft 35 and a driven sprocket arranged on the driven crankshaft 36, which are engaged with each other through a chain. (3) The belt transmission assembly includes a driving pulley arranged on the driving crankshaft 35 and a driven pulley arranged on the driven crankshaft 36, which are covered with a belt. These are various arrangement modes of the transmission member 37, which can realize linkage of the driving crankshaft 35 and the driven crankshaft 36.

[0044] The outer circumferential surface of the piston 19 is provided with a sealing ring for sealing cooperation with the inner circumferential surface of the cylinder body 18, so as to realize sealing between the two and avoid leakage of the medium from the gap therebetween.

[0045] As shown in the accompanying drawings, Figure 1 As shown, the inlet 13 of the pump body 4 is provided with a first check valve 40 allowing only the medium to enter the inside of the pump body 4, and the outlet 14 of the pump body 4 is provided with a second check valve 41 allowing only the medium to be discharged to the outside of the pump body 4. The first check valve 40 and the second check valve 41 not only prevent backflow, but also have the effects of noise reduction and breaking of tail flow.

[0046] As shown in the accompanying drawings, Figure 1As shown, the pump body 4 is provided with a lubricating oil groove 42 for delivering lubricating oil to each lubricating point. By delivering lubricating oil to each lubricating point through the oil pump, each transmission component in the pump body 4 can be precisely lubricated, reducing the wear of parts and improving the overall service life.

[0047] As an extension, multiple continuous suction units 8 are arranged on the same side of the driving crankshaft 35 and uniformly distributed along the axial direction of the driving crankshaft 35. This is the first arrangement of the continuous suction unit 8, which has the advantage of efficient transmission.

[0048] As a further extension, multiple continuous suction units 8 are arranged on both sides of the driving crankshaft 35, and the continuous suction units 8 on both sides are uniformly distributed along the axial direction of the driving crankshaft 35. In this scheme, the corresponding piston rods 26 on both sides can share a rod or be two separate rods, and in this scheme, one driving crankshaft 35 drives and two driven crankshafts 36 are driven. This is the second arrangement of the continuous suction unit 8, which can further improve the mixing and conveying efficiency.

[0049] As shown in the accompanying Figure 1 As shown, the separation and pressurization mixing tank 2 is provided with a perforated baffle 43 corresponding to the position of the inner end of each second pipeline 16, and a discharge port 44 is provided at the bottom position of the perforated baffle 43. This design not only has a pressure reduction effect, but also can avoid medium impact on the inner wall of the tank, thereby protecting the separation and pressurization mixing tank 2 and reducing noise.

[0050] As shown in the accompanying Figure 1 As shown, the suction tank 1 is provided with a suction liquid level sensor interface 45 and a suction pressure frequency conversion sensor interface 46, and the suction liquid level sensor interface 45 and the suction pressure frequency conversion sensor interface 46 are respectively provided with a first liquid level sensor 47 and a first pressure frequency conversion sensor 48; the separation and pressurization mixing tank 2 is provided with a mixing liquid level sensor interface 49 and a mixing pressure frequency conversion sensor interface 50, and the mixing liquid level sensor interface 49 and the mixing pressure frequency conversion sensor interface 50 are respectively provided with a second liquid level sensor 51 and a second pressure frequency conversion sensor 52; the cylinder body 18 is provided with a detection element 53, which can be a temperature and pressure sensor and a flow sensor, and the first liquid level sensor 47, the first pressure frequency conversion sensor 48, the second liquid level sensor 51, the second pressure frequency conversion sensor 52 and the detection element 53 are electrically connected to the intelligent control cabinet 3 through wires. The arrangement of various sensors can obtain important data information (such as pressure, liquid level, temperature, etc.) of the suction tank 1, the separation and pressurization mixing tank 2 and the cylinder body 18 in real time, so that the intelligent control cabinet 3 can control the working state (such as start and stop, speed, etc.) of the frequency conversion motor 5 in real time and accurately.

[0051] As shown in the accompanying Figure 1As shown, the suction tank 1 is provided with a suction safety valve interface 54, the first safety valve 55 is connected to the suction safety valve interface 54, the separation pressurized mixing tank 2 is provided with a mixing safety valve interface 56, the second safety valve 57 is connected to the mixing safety valve interface 56, the first safety valve 55 and the second safety valve 57 are both commercially available conventional components, and thus the specific structure thereof will not be described in detail herein. The safety valve structure is provided on the suction tank 1 and the separation pressurized mixing tank 2, and when the pressure in any tank body is too large, the corresponding safety valve can be used for pressure relief, so as to avoid the occurrence of safety accidents.

[0052] Working principle: during the suction operation, the sensor data signals are transmitted to the intelligent control cabinet 3, the intelligent control cabinet 3 controls the start-stop and rotating speed of the variable frequency motor 5, the variable frequency motor 5 drives the driving crankshaft 35 to rotate, the driving crankshaft 35 drives the driven crankshaft 36 to rotate through the transmission member 37, the main shaft cam 38 on the driving crankshaft 35 cooperates with the corresponding piston rod 26, and the driven crankshaft 36 cooperates with the corresponding suction valve ear 20 or discharge valve ear 21; taking a group of continuous suction units 8 as an example, the piston 19 of one group of suction assemblies 17 is pulled by the piston rod 26 of the driving crankshaft 35, so that the internal space of the cylinder body 18 generates negative pressure, at the same time, the suction port 27 of the suction valve ear 20 corresponding to the structure of the piston 19 is opened under the action of the corresponding shaft cam 39 of the driven crankshaft 36, and the discharge port 28 corresponding to the structure of the piston 19 is closed under the action of the second elastic member 34, at this time, the suction assembly 17 performs the suction process, and then the piston 19 of the suction assembly 17 is pushed by the piston rod 26 of the driving crankshaft 35, so that the internal space of the cylinder body 18 generates compression, at the same time, the suction port 27 corresponding to the structure of the piston 19 is closed under the action of the first elastic member 31, and the discharge port 28 corresponding to the structure of the piston 19 is opened under the action of the corresponding shaft cam 39 of the driven crankshaft 36, so as to realize the action of one suction and one discharge; the adjacent group of suction assemblies 17 performs the opposite work, that is, one discharge and one suction, so as to transport the medium in the suction tank 1 to the separation pressurized mixing tank 2; the solid, liquid and gas media in the separation pressurized mixing tank 2 will be stratified in the tank body due to the different densities, and are discharged through the gas outlet 10, the liquid outlet 11 and the solid outlet 12 respectively; similarly, it can also transport any two mixtures of gas, solid and liquid, or any single medium of gas, solid and liquid. Similarly, the continuous suction unit 8 can be provided with multiple groups according to the needs, so as to further improve the mixing efficiency. In addition, by reversing the first check valve 40 and the second check valve 41, the suction can also be performed.

[0053] The multiphase flow intelligent control mixing system can be applied to the following fields:

[0054] 1. Oil and gas industry - In oil or gas extraction, "intelligent control of multiphase flow mixing and delivery system" can refer to a system for extracting underground oil and gas resources and delivering the oil and gas mixture to processing facilities. This system is usually used for complex oil and gas field development, especially in the case of safe mixing and delivery of multiphase flow (oil, gas, water and sand mixture).

[0055] 2. Medical field - In medical devices, "intelligent control of multiphase flow mixing and delivery system" can refer to a device for extracting body fluids (such as sputum or blood), collecting samples and mixing and delivering them. For example, some medical devices can perform sputum suction and infusion operations simultaneously, producing mixed delivery media for pharmaceutical processes.

[0056] 3. Chemical or industrial field - In chemical or industrial production, this system can be used to extract raw materials, collect and mix multiple substances and deliver them to the next production link.

[0057] For example, in liquid mixing or reaction processes, different components may need to be mixed in proportion and delivered.

[0058] Such as used as delivery pumps for various acid-base salt solutions and resins, pigments, inks, paints, glycerol, paraffin;

[0059] Oil refinery: used for delivering various heated oils, asphalt oils, tars, latex solutions, asphalt and various oil products used as oil delivery, oil pool tanker trucks.

[0060] 4. Environmental protection or sewage treatment - In the field of environmental protection, "intelligent control of multiphase flow mixing and delivery system" can be used to extract sewage or sludge, collect samples and mix and deliver them for further processing or analysis.

[0061] Core functions:

[0062] (1) Suction and collection: Suction of liquids, gases or solid particles and collection of samples.

[0063] (2) Mixing and delivery: mixing of multiple substances and delivering them to a designated location.

[0064] 5. Shipbuilding - used as ship loading pump, warehouse cleaning pump, ship ballast pump, main engine lubricating oil pump, fuel delivery pump, fuel injection pump, cargo oil pump, etc.

[0065] v. Thermal power plant - used as heavy oil and crude oil delivery pump, heavy oil fuel pump, etc.

[0066] 6. Food - used in wineries, food factories, sugar refineries, canneries, to deliver alcohol, honey, sugar juice, toothpaste, milk, cream, soy sauce, vegetable oil, animal oil, etc.

Claims

1. A multiphase flow intelligent control multiphase pumping system, characterized in that: The application relates to a continuous suction unit, which comprises a suction tank (1), a separation-pressurization mixed conveying tank (2), an intelligent control cabinet (3), a pump body (4), a variable frequency motor (5), a transmission mechanism (7) and at least one set of continuous suction units (8) arranged in the pump body (4). The suction tank (1) is provided with a suction inlet (9), the separation-pressurization mixed conveying tank (2) is sequentially provided with a gas conveying outlet (10), a liquid conveying outlet (11) and a solid conveying outlet (12) from top to bottom, the pump body (4) is provided with an inlet (13) and a plurality of outlets (14), the suction tank (1) is connected with the inlet (13) of the pump body (4) through a first pipeline (15), the separation-pressurization mixed conveying tank (2) is connected with the plurality of outlets (14) of the pump body (4) through a plurality of second pipelines (16), the intelligent control cabinet (3) is electrically connected with the variable frequency motor (5) through wires, the continuous suction unit (8) comprises two sets of suction assemblies (17), the variable frequency motor (5) is connected with the continuous suction unit (8) through the transmission mechanism (7), so that one set of suction assemblies (17) sucks the medium in the suction tank (1) and the other set of suction assemblies (17) discharges the medium into the separation-pressurization mixed conveying tank (2), and one set of suction assemblies (17) discharges the medium into the separation-pressurization mixed conveying tank (2) and the other set of suction assemblies (17) sucks the medium in the suction tank (1).

2. The multiphase flow intelligent control mixing system of claim 1, wherein: The suction assembly (17) comprises a cylinder body (18), a piston (19), a suction valve lug (20), a discharge valve lug (21) and an output pipe (22); the pump body (4) is divided into a transmission cavity (24) and a medium cavity (25) by a partition plate (23), the inlet (13) and the plurality of outlets (14) on the surface of the pump body (4) are connected with the medium cavity (25), the cylinder body (18) is installed on one side of the partition plate (23) corresponding to the transmission cavity (24), the piston (19) is movably arranged in the cylinder body (18), the piston (19) is provided with a piston rod (26) connected with the transmission mechanism (7), the output pipe (22) is installed on one side of the partition plate (23) corresponding to the medium cavity (25) and connected with the corresponding outlet (14), the partition plate (23) is provided with a suction port (27) connecting the medium cavity (25) with the inside of the cylinder body (18) and a discharge port (28) connecting the cylinder body (18) with the output pipe (22), the suction valve lug (20) and the discharge valve lug (21) are respectively installed on the suction port (27) and the discharge port (28); when the piston (19) moves away from the partition plate (23), the suction valve lug (20) opens the suction port (27) and the discharge valve lug (21) closes the discharge port (28), when the piston (19) moves towards the partition plate (23), the suction valve lug (20) closes the suction port (27) and the discharge valve lug (21) opens the discharge port (28).

3. The multiphase flow intelligent control mixing system of claim 2, wherein: The suction valve lug (20) comprises a suction valve rod (29) matched with the transmission mechanism (7), a suction valve flap (30) arranged on the suction valve rod (29), and a first elastic member (31) for driving the suction valve rod (29) and the suction valve flap (30) to reset; the discharge valve lug (21) comprises a discharge valve rod (32) matched with the transmission mechanism (7), a discharge valve flap (33) arranged on the discharge valve rod (32), and a second elastic member (34) for driving the discharge valve rod (32) and the discharge valve flap (33) to reset.

4. The multiphase flow intelligent control mixing system of claim 3, wherein: The transmission mechanism (7) comprises a driving crankshaft (35) and a driven crankshaft (36), the driving crankshaft (35) and the driven crankshaft (36) are arranged on the pump body (4) and are connected in linkage through a transmission member (37), the variable frequency motor (5) is connected in linkage with the driving crankshaft (35) for driving the driving crankshaft (35) to rotate, the driving crankshaft (35) is arranged with a plurality of main shaft cams (38) in the axial direction, every two adjacent main shaft cams (38) are opposite in direction, the main shaft cams (38) are connected with corresponding piston rods (26) for pushing and pulling the piston (19) to move along the cylinder body (18) in the axial direction, the driven crankshaft (36) is arranged with a plurality of driven shaft cams (39) in the axial direction, every two adjacent driven shaft cams (39) are opposite in direction, the suction valve rod (29) and the discharge valve rod (32) are matched with two adjacent driven shaft cams (39) respectively.

5. The multiphase flow intelligent control mixing system of claim 2, wherein: The first check valve (40) allowing only the medium to enter the inside of the pump body (4) is arranged at the inlet (13) of the pump body (4), and the second check valve (41) allowing only the medium to be discharged to the outside of the pump body (4) is arranged at the outlet (14) of the pump body (4).

6. The multiphase flow intelligent control mixing system of claim 1, wherein: The lubricating oil groove (42) for delivering lubricating oil to each lubricating point is arranged in the pump body (4).

7. The multiphase flow intelligent control mixing system of claim 4, wherein: The plurality of continuous suction units (8) are arranged on the same side of the driving crankshaft (35) and are uniformly distributed along the axial direction of the driving crankshaft (35); or the plurality of continuous suction units (8) are arranged on both sides of the driving crankshaft (35), and the continuous suction units (8) on both sides are uniformly distributed along the axial direction of the driving crankshaft (35).

8. The multiphase flow intelligent control mixing system of claim 1, wherein: The porous baffle (43) is arranged at the position corresponding to the inner end of each second pipeline (16), and the bottom of the porous baffle (43) is provided with a discharge port (44).

9. The multiphase flow intelligent control mixing system of claim 2, wherein: The suction tank (1) is provided with a suction liquid level sensor interface (45) and a suction pressure frequency conversion sensor interface (46), the suction liquid level sensor interface (45) and the suction pressure frequency conversion sensor interface (46) are respectively provided with a first liquid level sensor (47) and a first pressure frequency conversion sensor (48); the separation pressurization mixed transport tank (2) is provided with a mixed transport liquid level sensor interface (49) and a mixed transport pressure frequency conversion sensor interface (50), the mixed transport liquid level sensor interface (49) and the mixed transport pressure frequency conversion sensor interface (50) are respectively provided with a second liquid level sensor (51) and a second pressure frequency conversion sensor (52); the cylinder (18) is provided with a detection element (53) for detecting the internal temperature and pressure and flow of the cylinder (18), the first liquid level sensor (47), the first pressure frequency conversion sensor (48), the second liquid level sensor (51), the second pressure frequency conversion sensor (52) and the detection element (53) are electrically connected with the intelligent control cabinet (3) through wires.

10. The multiphase flow intelligent control mixing system of claim 2, wherein: The suction tank (1) is provided with a suction safety valve interface (54), the suction safety valve interface (54) is connected with a first safety valve (55), the separation pressurization mixed transport tank (2) is provided with a mixed transport safety valve interface (56), the mixed transport safety valve interface (56) is connected with a second safety valve (57).

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