CN112791869B

CN112791869B - Automatic throughput type flow division ratio self-adjusting hydraulic cyclone separation device

Info

Publication number: CN112791869B
Application number: CN202011619192.6A
Authority: CN
Inventors: 邢雷; 蒋明虎; 赵立新; 刘海龙; 赵嵘厂; 王思淇
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-08-30
Anticipated expiration: 2040-12-30
Also published as: CN112791869A

Abstract

An automatic throughput type flow-dividing ratio self-adjusting hydraulic cyclone separation device. The method is characterized in that: the automatic throughput type split ratio self-adjusting hydraulic cyclone separation device comprises a cyclone separation module, an overflow flow control module, an overflow secondary separation module, a bottom flow split control module and a bottom flow secondary separation module; after being separated by the cyclone separation module, the liquid flows out from the overflow port/underflow port, flows into the liquid flow guide cylinder inlet of the liquid flow guide module to enable the liquid flow in a stable pressure state to flow into the liquid flow collection module through the flow dividing control module, the liquid flow in a high pressure state flows into the overflow/underflow secondary separation module after being subjected to secondary separation through the overflow/underflow flow control module after being subjected to pressure reduction, flows into the liquid flow collection module, and finally flows out of the system to collect the liquid flow. The automatic throughput type flow-dividing ratio self-adjusting hydraulic cyclone separation device can automatically control the flow-dividing ratio of the cyclone, so that the cyclone always works under the condition of the preset flow-dividing ratio, and the influence of irregular liquid pulse impact on the flow-dividing effect is reduced.

Description

Automatic throughput type flow division ratio self-adjusting hydraulic cyclone separation device

Technical Field

The invention relates to an automatic throughput type flow splitting ratio self-adjusting hydraulic cyclone separation device.

Background

During the operation of the cyclone, the characteristics of the fluid are random and unstable, especially the characteristics of the flow rate, the speed and the like of the fluid, and the sudden change of the quantities can change the flow dividing ratio (the ratio of overflow flow rate to inlet flow rate) of the cyclone separator, wherein the flow dividing ratio is an important influence factor, not only the separation efficiency of the cyclone separator is influenced, but also the pressure drop has certain influence. For the cyclone with determined structural parameters, the split ratio is the calculated optimal split ratio, and the sudden change of the split ratio means that incompletely separated heavy dispersed phase liquid may exist in the light dispersed phase flowing out of the overflow port, which indirectly causes the reduction of the separation efficiency, so that the sudden change of the pressure is required to be controlled, the liquid is separated again, the stability of the split ratio is ensured, the cyclone can operate efficiently all the time, and the liquid separation requirement is met.

Disclosure of Invention

In order to solve the technical problems mentioned in the background technology, the invention provides a novel automatic throughput type flow division ratio self-adjusting hydraulic cyclone separation device, which can control the pressure intensity of sudden change and separate liquid again, ensures the stability of the flow division ratio, ensures that a cyclone always operates efficiently and meets the requirement of liquid separation.

The technical scheme of the invention is as follows: the automatic throughput type flow-dividing ratio self-adjusting hydraulic cyclone separation device is provided with a cyclone separation module, an overflow flow-dividing control module, an overflow secondary separation module, a bottom flow-dividing control module, a bottom flow secondary separation module and a hose, and is characterized in that:

the cyclone separation module comprises an overflow pipe, a separation pipe, a sealing gasket, a separation blade, a hexagonal flange face locking bolt and a hexagonal flange face locking nut; the overflow pipe is a cylindrical pipeline with flanges at two ends, namely a blade sealing flange and an overflow port fixing flange; the main structure of the separation pipe is provided with a connecting flange pulp inlet pipe, a cylinder, a conical cylinder and a bottom flow port; the slurry inlet pipe is a cylindrical pipeline with a flange at one end and is connected to a cylinder on the separation pipe through welding; the cylinder is a cylindrical cylinder, one end of the cylinder is connected with the connecting flange, and the other end of the cylinder is connected with the conical cylinder; the conical cylinder is a conical cylinder, and the large diameter of the conical cylinder is connected with the conical cylinder; the underflow port is arranged at the tail end of the conical cylinder and is provided with a flange connected with the underflow shunting control module; the separation blade is a helical blade with a fixed pitch, the outline of the end of the blade is hemispherical, the other end of the blade is provided with a positioning flange, and the separation blade is positioned and connected through a hexagonal flange face locking bolt and a hexagonal flange face locking nut according to the sequence of a connecting flange in a separation pipe, a sealing gasket, the positioning flange in the separation blade and a blade sealing flange in an overflow pipe.

The overflow split-flow control module comprises an overflow input flange cylinder, an overflow-spring support, an overflow-trapezoidal plug return spring, an overflow-high-pressure-preventing trapezoidal plug, an overflow-buffer rubber sleeve and an overflow collecting cylinder; the main structure of the overflow input flange cylinder comprises an overflow port flange, a first spring support screwing screw channel, a high-pressure shunting port and a rubber sleeve fixing ring; wherein the high-pressure shunt port is provided with threads; the main structure of the overflow-spring support comprises a lower spring fixing support leg and four screwing fixing support legs; the main mechanism of the overflow-high pressure prevention trapezoidal plug comprises a spring upper fixing support leg; the overflow collecting cylinder is structurally characterized by comprising a trapezoidal diameter reduction part, a pure liquid collecting cylinder, an overflow recovery pipe, an underflow recovery pipe and a rubber fixing ring; wherein the overflow recovery pipe and the underflow recovery pipe are provided with threads; an overflow port flange on the overflow input flange cylinder is connected with an overflow port fixing flange on an overflow pipe in the cyclone separation module through a hexagonal flange surface locking bolt and a hexagonal flange surface locking nut; the overflow-spring support is screwed with a spring support screwing screw channel on the overflow input flange barrel through four screwing fixing feet; the overflow-trapezoidal plug return spring is fixed between the overflow-spring support and the overflow-high pressure prevention trapezoidal plug through the lower spring fixing support leg on the overflow-spring support and the upper spring fixing support leg on the overflow-high pressure prevention trapezoidal plug. The overflow-buffer rubber sleeve is sleeved on the rubber sleeve fixing ring on the overflow input flange cylinder and the rubber fixing ring on the overflow collecting cylinder; the rubber can be locked and sealed by a hose clamp at the fixing ring;

the overflow secondary separation module comprises a bent pipe, an overflow one-way valve, an overflow secondary separation blade and an overflow secondary separation sleeve, wherein the overflow one-way valve mainly structurally comprises threads at interfaces at two ends, a one-way valve core and a valve core pressure spring; the main structure of the overflow-secondary separation blade comprises a fixed-pitch separation blade, a blade fixing bridge, a sealing baffle cover and a threaded ring; the main structure of the overflow-secondary separation sleeve comprises a sealing thread, a separation main item pipe and a separation auxiliary item pipe; wherein the interior of the main separating collar is provided with a screw thread; the elbow is connected with a high-pressure flow dividing port on the overflow input flange barrel through threads, and the other end of the elbow is connected with the overflow one-way valve through threads; one side of a valve core of the overflow one-way valve is connected with the bent pipe, and the other end of the valve core of the overflow one-way valve is connected with the overflow-secondary separation blade through threads; the threaded ring on the overflow-secondary separation blade is connected with the sealing thread of the overflow-secondary separation sleeve and is sealed by the sealing baffle cover on the overflow-secondary separation blade; the internal thread of the main separating item pipe on the secondary separating sleeve is connected with another bent pipe through threads, and the other end of the bent pipe is connected with an underflow recovery pipe on an overflow collecting cylinder in the flow dividing control module through threads;

the underflow split-flow control module comprises an underflow input flange cylinder, an underflow-spring support, an underflow-trapezoidal plug return spring, an underflow-high-pressure-proof trapezoidal plug and an underflow-buffer rubber sleeve underflow collecting cylinder; the underflow input flange barrel mainly comprises an underflow port flange, a spring support screwing screw channel, a high-pressure shunting port and a rubber sleeve fixing ring; wherein the high-pressure shunt opening is provided with a thread; the underflow-spring support comprises a main structure of a spring lower fixing support leg and four screwing fixing legs; the main mechanism of the bottom flow-high pressure prevention trapezoidal plug comprises a spring upper fixing support leg; the structure of the underflow collecting cylinder comprises a trapezoidal diameter reduction, a pure liquid collecting cylinder, an underflow recycling pipe, an overflow recycling pipe and a rubber fixing ring; wherein the underflow recovery pipe and the overflow recovery pipe are provided with threads; a bottom flow port flange on the bottom flow input flange cylinder is connected with a bottom flow port on a separation pipe in the cyclone separation module through a hexagonal flange face locking bolt and a hexagonal flange face locking nut; the underflow-spring support is screwed with the spring support screwing screw channel on the underflow input flange barrel through four screwing fixing feet; the bottom flow-trapezoidal plug return spring is fixed between the bottom flow-spring support and the bottom flow-high pressure prevention trapezoidal plug through a bottom flow-spring support and a top spring fixing support leg on the bottom flow-high pressure prevention trapezoidal plug. The underflow-buffer rubber sleeve is sleeved on a rubber sleeve fixing ring on the underflow input flange cylinder and a rubber fixing ring on the underflow collecting cylinder; the rubber can be locked and sealed by a hose clamp at the fixing ring;

the underflow secondary separation module comprises an elbow, an underflow one-way valve, an underflow-secondary separation blade, an underflow-secondary separation sleeve and an underflow elbow; the underflow one-way valve mainly comprises threads at the interfaces at two ends, a one-way valve core and a valve core pressure spring; the underflow-secondary separation blade mainly comprises a fixed-pitch separation blade, a blade fixing bridge, a sealing baffle cover and a threaded ring; the underflow-secondary separation sleeve mainly comprises a sealing thread, a separation main item pipe and a separation auxiliary item pipe; wherein the interior of the main separating collar is provided with a screw thread; the main structure of the underflow elbow comprises a connecting sealing thread and a fixed bridge; the elbow is connected with a high-pressure shunt port on the underflow input flange cylinder through threads, and the other end of the elbow is connected with the underflow one-way valve through threads; one side of a valve core of the one-way valve of the bottom flow is connected with the bent pipe, and the other end of the valve core of the one-way valve of the bottom flow is connected with the bottom flow-secondary separation blade through threads; the thread ring on the underflow-secondary separation blade is connected with the sealing thread of the underflow-secondary separation sleeve and is sealed by the sealing retaining cover on the underflow-secondary separation blade; the internal thread of the separation main item pipe on the secondary separation sleeve is connected with the connecting sealing thread on the underflow elbow pipe through threads, and the other end of the underflow elbow pipe is connected with the overflow recovery pipe on the underflow collection cylinder in the flow dividing control module through threads;

the heavy-phase medium hose is a rubber hose and can be connected between a main separation item pipe on the overflow-secondary separation sleeve and an overflow recovery pipe on the underflow collection cylinder through a hoop, and the light-phase medium hose is a rubber hose and can be connected between the underflow recovery pipe on the overflow collection cylinder and a main separation item pipe on the underflow-secondary separation sleeve through the hoop.

The invention has the following beneficial effects: the device utilizes the return spring of the shunt control module and the one-way valve in the trapezoidal plug and the secondary separation module, can realize automatic control of the split ratio, and carry out secondary separation on the mixed liquid which does not reach the optimal split ratio, innovatively designs a split ratio self-adjusting module before the unidirectional medium is collected at an overflow port and an underflow port, so that the relatively high-pressure mixed phase medium discharged when the liquid inlet flow of the cyclone is unstable is blocked by the trapezoidal plug and is not directly collected, the single-phase medium separated by the stable work of the cyclone can be directly collected through the gap between the trapezoidal plug and the liquid flow collecting cylinder, the mixed phase medium which is not collected flows through the one-way valve through the elbow pipe and is guided into the secondary separation module, and the single-phase medium after the secondary separation of the mixed phase medium is guided into the liquid flow collecting barrel through the bent pipe and then collected, and the other separated phase medium is connected with the liquid flow collecting barrel at the other end of the cyclone through the secondary top pipe on the secondary separation sleeve and collected.

The following is a detailed description:

firstly, the automatic throughput type flow dividing ratio self-adjusting hydraulic cyclone separation device is beautiful in appearance structure, innovative in functional practicability, capable of effectively solving the problem of flow dividing efficiency reduction caused by unstable liquid inlet flow in actual conditions, and capable of self-adaptively adjusting the whole process system without human intervention.

Secondly, the automatic throughput type split-flow ratio self-adjusting hydraulic cyclone separation device is simple in overall structure and high in reliability, and the overflow/underflow-split-flow control module adopts a rubber sleeve in the structure to absorb impact caused by liquid flow change, so that the system is more stable in the working process.

And thirdly, after the unstable liquid flow is guided into the secondary separation module for separation, the water separated at the overflow side is connected with the liquid flow collecting cylinder of the underflow, and the oil separated at the underflow side is connected with the liquid flow collecting cylinder of the overflow, so that the same medium can be collected simultaneously, and the oil can not be circulated in the system for many times, thereby playing the role of improving the separation efficiency.

Then, according to actual conditions, the automatic throughput type flow-splitting ratio self-adjusting hydraulic cyclone separation device automatically adjusts the flowing direction of liquid flow through the spring, and the one-way valve can ensure that the separated liquid flow does not flow back in the whole process, so that the separation efficiency is reduced.

Finally, the automatic throughput type flow splitting ratio self-adjusting hydraulic cyclone separation device can pre-adjust the elastic coefficient of the spring according to actual conditions, and adopts the spring base to be installed in the system, so that the device is convenient to disassemble and assemble and high in accuracy.

In summary, the automatic throughput type flow division ratio self-adjusting hydrocyclone separation device provided by the invention utilizes a dynamic balance system formed by the elastic force of the spring and the pressure of the overflow port and the underflow port of the cyclone to realize dynamic adjustment of the flow division ratio of the cyclone, so that the flow division effect of the cyclone at any moment is not changed by the change of the liquid inlet flow, the separation effect is deteriorated, and meanwhile, the device has high reliability, the rubber sleeve can absorb the impact caused by the change of the liquid flow in the working process, and the liquid flow after separation in the whole process is ensured not to flow back through the one-way valve. The device has the advantages of simple appearance structure, convenience in installation and innovativeness in practical application, can ensure that equipment has a constant flow split ratio in the operation process, does not need manual adjustment, and ensures the working stability of the whole system.

Drawings

Fig. 1 is an overall appearance view of an automatic throughout type flow dividing ratio self-adjusting hydrocyclone separation device.

Fig. 2 is an exploded view of an automatic throughput split ratio self-regulating hydrocyclone separation apparatus.

FIG. 3 is an appearance diagram of the cyclone separation module assembling body.

FIG. 4 is a sectional view of the cyclone separation module assembly.

Figure 5 is a view of the overflow tube.

FIG. 6 is a view showing the structure of a separation tube.

Fig. 7 is a view showing a structure of a separation blade.

FIG. 8 is a sectional view of a separator vane.

FIG. 9 is an external view of an assembly of the overflow diverting control module.

FIG. 10 is an exploded view of an overflow diverter control module assembly.

FIG. 11 is a cross-sectional view of an overflow diverter control module assembly.

FIG. 12 is a block diagram of an overflow-inlet flange cartridge.

Fig. 13 is a view showing a structure of a spiral flow passage of the spring holder.

FIG. 14 is a view of the relief-spring support structure.

FIG. 15 is a cross-sectional view of an overflow-anti-high pressure trapezoidal plug.

Fig. 16 is a view showing the structure of an overflow-collecting tank.

FIG. 17 is an appearance view of the assembly of the overflow secondary separation module.

Fig. 18 is an exploded view of an overflow secondary separation module assembly.

Figure 19 is a cross-sectional view of an overflow secondary separation module assembly.

FIG. 20 is a view showing the structure of the elbow.

Fig. 21 is a structural view of an overflow-secondary separating blade.

Fig. 22 is an internal structure view of an overflow-secondary separation blade.

Fig. 23 is an external view of an overflow secondary separation sleeve.

FIG. 24 is a detail view of the overflow-secondary separation sleeve.

FIG. 25 is an external view of the overflow flow control module and the overflow secondary separation module.

FIG. 26 is a cross-sectional view of a non-operational mode of the overflow flow control module and the overflow secondary separation module.

FIG. 27 is a sectional view of an overflow flow control module and an overflow secondary separation module in operating mode.

Fig. 28 is an external view of the underflow split control module assembly.

Fig. 29 is an exploded view of the underflow split control module assembly.

Fig. 30 is a cross-sectional view of an underflow split control module assembly.

Fig. 31 is a view showing the structure of the underflow-inlet flange cylinder.

FIG. 32 is a view showing a structure of a spiral flow path of a spring holder.

Fig. 33 is a view showing the structure of the underflow-spring support.

Fig. 34 is a cross-sectional view of an underflow-anti-high pressure trapezoidal plug.

Fig. 35 is a view showing the structure of the underflow-collecting tank.

Fig. 36 is an appearance view of the assembly body of the underflow secondary separation module.

Fig. 37 is an exploded view of an underflow secondary separation module assembly.

Fig. 38 is a cross-sectional view of an underflow secondary separation module assembly.

FIG. 39 is a view showing the structure of an elbow pipe.

Fig. 40 is a view showing the structure of the underflow-secondary separating blade.

Fig. 41 is an internal structure view of the underflow-secondary separation blade.

Fig. 42 is an external view of the underflow-secondary separation sleeve.

Fig. 43 is a detail view of the underflow-secondary separation sleeve.

Fig. 44 is a view of the underflow elbow.

Fig. 45 is an appearance view of the underflow split control module and the underflow secondary separation module.

Fig. 46 is a cross-sectional view of a non-operational mode of the underflow control module and the underflow secondary separation module.

Fig. 47 is a sectional view of the operation mode of the underflow control module and the underflow secondary separation module.

FIG. 48 is a schematic view of a hose connection.

In the figure, 1-a rotational flow separation module, 2-an overflow flow control module, 3-an overflow secondary separation module, 4-a bottom flow control module, 5-a bottom flow secondary separation module, 6-an overflow pipe, 601-a blade sealing flange, 602-an overflow port fixing flange, 7-a separation pipe, 701-a connecting flange, 702-a slurry inlet pipe, 703-a cylinder, 704-a cone, 705-a bottom flow port, 8-a sealing gasket, 9-a separation blade, 901-a positioning flange, 902-a reducing aperture, 10-a hexagonal flange face locking bolt, 11-a hexagonal flange face locking nut, 12-an overflow-input flange cylinder, 121-an overflow port flange, 122-a first spring support screwing screw channel, 123-a first high-pressure shunt port, 124-a first rubber sleeve fixing ring, 13-an overflow-spring support, 131-a lower spring fixing support leg, 132-four screwing fixing legs, 14-an overflow-trapezoidal plug return spring, 15-an overflow-high pressure prevention trapezoidal plug, 151-an upper spring fixing support leg, 16-an overflow-buffer rubber sleeve, 17-an overflow collecting cylinder, 171-a trapezoidal radial shrinkage, 172-a pure liquid collecting cylinder, 173-an overflow recycling pipe, 174-an underflow recycling pipe, 175-a rubber fixing ring, 18-a bent pipe, 19-an overflow one-way valve, 191-a one-way valve core, 192-a valve core pressure spring, 20-an overflow secondary separating blade, 201-a fixed pitch separating blade, 202-a blade fixing bridge, 203-a sealing baffle cover and 204-a threaded ring, 21-overflow secondary separation sleeve, 211-sealing thread, 212-first separation main item pipe, 213-second separation auxiliary item pipe, 22-underflow input flange cylinder, 221-underflow port flange, 222-second spring support screwing channel, 223-second high-pressure shunt port, 224-second rubber sleeve fixing ring, 23-underflow-spring support, 231-spring lower fixing support leg, 232-four screwing fixing legs, 24-underflow-trapezoidal plug return spring, 25-underflow-high pressure-proof trapezoidal plug, 251-spring upper fixing support leg, 26-underflow-buffer rubber sleeve, 27-underflow collection cylinder, 271-trapezoidal diameter shrinkage, 272-pure liquid collection cylinder, 273-underflow recovery pipe, 274-overflow recovery pipe, 275-rubber fixing ring, 28-elbow, 29-underflow check valve, 291-one-way valve core, 292-valve core pressure spring, 30-underflow secondary separation blade, 301-fixed pitch separation blade, 302-blade fixed bridge, 303-sealing baffle cover, 304-thread ring, 31-underflow secondary separation sleeve, 311-sealing thread, 312-second separation main item pipe, 313-second separation auxiliary item pipe, 32-underflow elbow, 321-connecting sealing thread, 322-fixed bridge, 33-heavy phase medium hose and 34-light phase medium hose.

Detailed Description

The invention is further described below with reference to the accompanying drawings: the overall appearance diagram of the automatic throughput type split ratio self-adjusting hydraulic cyclone separation device is shown in figure 1 and mainly comprises a cyclone separation module 1, an overflow split control module 2, an overflow secondary separation module 3, an underflow split control module 4 and an underflow secondary separation module 5. As shown in the overall explosion diagram of FIG. 2, the cyclone separation module 1 mainly comprises an overflow pipe 6, a separation pipe 7, a sealing gasket 8 and a separation blade 9. An appearance diagram of the assembly body of the cyclone separation module is shown in fig. 3, and a hexagonal flange face locking bolt 10 and a hexagonal flange face locking nut 11 are used for connecting and fixing the overflow flow distribution control module 2 and the underflow flow distribution control module 4. FIG. 4 is a sectional view of the cyclone separation module assembly. Fig. 5 is a structural view of the overflow pipe 6, and the separated overflow flows from the blade sealing flange 601 to the overflow port fixing flange 602. Fig. 6 is a structural diagram of a separation pipe 7, liquid enters a cyclone separation pipe from a slurry inlet pipe 702, the tangential velocity is increased through the rotational acceleration of a separation blade 9 in a cylinder 703, a mixed multiphase flow is rotationally separated in a cone 704, a component with high density simultaneously moves downwards along the axial direction under the action of a swirl field, moves outwards along the radial direction, moves downwards along the wall when reaching the cone section and is discharged from a bottom flow port 705, and a light phase medium is gathered in the center of the cone and is separated and discharged through an overflow pipe 6 connected with a connecting flange 701. Fig. 7 is a structural view of the separation blade 9, and a step is provided at a positioning flange 901 for positioning the gasket 8. Fig. 8 is a cross-sectional view from the vane 9 with a variable diameter bore 902 at the vane axis for the overflow discharge passage.

Fig. 9 is an overall external view of an assembly of the overflow distribution control module 2. Fig. 10 is an exploded view of the diversion control module 2, which is mainly composed of an overflow-input flange cylinder 12, an overflow-spring support 13, an overflow-trapezoidal plug return spring 14, an overflow-high pressure prevention trapezoidal plug 15, an overflow-buffer rubber sleeve 16 and an overflow collecting cylinder 17. Fig. 11 is an assembly cross-sectional view of the split control module 2. Fig. 12 is a structural diagram of an overflow-input flange cylinder 12, an overflow port flange 121 at the bottom is connected with an overflow port of a cyclone separation module 1 to collect separated liquid, a first high-pressure diversion port 123 plays a diversion guide role in the liquid collection process, when the pressure of liquid flow discharged from the overflow port is too large, the part of the liquid flow is guided to an overflow secondary separation module 3 through the first high-pressure diversion port 123, a first rubber sleeve fixing ring 124 at the upper part of the overflow-input flange cylinder 12 is connected with an overflow-buffer rubber sleeve 16 and can be locked with each other by a hose clamp, and when the pressure of the liquid changes, energy can be absorbed through elastic damping of the rubber sleeve, so that a water hammer phenomenon is avoided. Fig. 13 is a view showing the internal structure of the overflow/input flange 12, in which the first spring seat screwing passage 122 is embedded in the wall of the overflow/input flange 12. Fig. 14 is a block diagram of the overflow spring support 13, in which the lower spring fixing leg 131 mainly fixes the overflow trapezoidal plug return spring 14, and four screwing fixing legs 132 are screwed to the first spring support screwing channel 122. Fig. 15 is a cross-sectional view of the overflow-high pressure prevention trapezoidal plug 15, in which the fixing legs 151 on the spring are connected and fixed to the overflow-trapezoidal plug return spring 14, and when high-pressure liquid flows into the overflow-input flange barrel 12 during operation, the spring is not strong enough to resist the high-pressure impact of the liquid, so that the spring moves forward to block the forward direction of the liquid, and the liquid is led into the overflow secondary separation module 3 through the first high-pressure diversion port 123 for secondary separation. Fig. 16 is a structural diagram of the overflow collecting cylinder 17, in which a trapezoid reducer 171 is matched with the overflow-high pressure preventing trapezoid plug 15, and when the overflow-trapezoid plug return spring 14 works, the flow is blocked from advancing, and the flow which normally flows out of the overflow cylinder will flow through the gap between the overflow-trapezoid plug 15 and the trapezoid reducer 171 to reach a pure liquid collecting cylinder 172, so that single-phase medium recovery of light-phase medium can be performed. The overflow recycling pipe 173 collects the high-pressure liquid flow part of the overflow pipe after secondary separation, the underflow recycling pipe 174 collects the high-pressure liquid flow part of the underflow pipe after secondary separation, and 175 is a rubber fixing ring and is connected with the overflow-buffer rubber sleeve 16 to finally form a continuous pipeline.

Fig. 17 is an external view of an assembly of the overflow secondary separation module 3. Fig. 18 is an exploded view of the overflow secondary separation module 3, which is mainly composed of a bent pipe 18, an overflow check valve 19, an overflow-secondary separation blade 20, and an overflow-secondary separation sleeve 21. Fig. 19 is a sectional view of an assembly of the overflow secondary separation module 3, a check valve spool 191, and a spool pressure spring 192. Fig. 20 shows an elbow 18, both ends of which are connected to the transition overflow flow control module 2 and the overflow secondary separation module 3, and are connected to the overflow check valve 19 by screw threads, and the other end is connected to the flow control module 2 by screw threads. FIG. 21 is a view showing the construction of the overflow-secondary separation blade 20, which has an external structure comprising a fixed pitch separation blade 201, a sealing cover 203, and a screw ring 204. Fig. 22 is an internal structure view of the overflow-secondary separation blade 20, and a blade fixing bridge 202 fixes a fixed pitch separation blade 201 and ensures smooth flow of liquid. Fig. 23 is a structural diagram of the overflow-secondary separation sleeve 21, in which a sealing thread 211 is fixed to a threaded ring 204 through threaded connection and sealed by a sealing baffle cover 203 to ensure that liquid does not seep outwards, the connected whole is connected with the overflow check valve 19 through threads, and heavy phase media after secondary separation is discharged through a separation auxiliary top pipe 213 and collected by being connected with an underflow split flow control module. Fig. 24 is a structural view of the inside of the overflow-secondary separation sleeve 21, wherein the first main separation top pipe 212 is connected with the elbow 18 through threads, and the separated light-phase medium flows from the port to the overflow collection cylinder 17 through the elbow 18 to complete secondary separation.

Fig. 25 is an overall external view of an assembly in which the overflow flow control module 2 and the overflow secondary separation module 3 are combined. When the assembly body of the overflow flow control module 2 and the overflow secondary separation module 3 is not in operation, the cross-sectional view is shown in fig. 26, and after the liquid after overflow enters from the overflow-input flange cylinder 12, when the liquid flow pressure is weak, the gap between the trapezoidal diameter reduction 171 and the overflow-high-pressure-proof trapezoidal plug 15 is enough to allow the liquid flow to pass through, and the liquid directly flows into the overflow collection cylinder 17 to complete the collection of the overflow liquid of the cyclone. A cross-sectional view of the assembly of the overflow flow control module 2 in combination with the overflow secondary separation module 3 in operation is shown in figure 27, when the pressure of the liquid flow is increased sharply, the overflow-trapezoid plug return spring 14 is not enough to resist the impact of the liquid flow, so that the overflow-high pressure prevention trapezoid plug 15 moves forwards to block the inner space of the trapezoid reducer 171, and meanwhile, the high-pressure liquid flow flows from the elbow 18 to the overflow check valve 19, because of the sudden increase of liquid flow, the separated light phase medium is bound to carry a small part of heavy phase medium out, therefore, the one-way valve connects the overflow-secondary separation blade 20 with the overflow-secondary separation sleeve 21 to separate the heavy phase medium and discharge the heavy phase medium to the underflow through the separation secondary top pipe 213, and the separated light phase medium is guided back to the overflow recovery pipe 173 through the elbow 18 to complete the collection of the overflow liquid of the cyclone through the overflow collection cylinder 17.

Fig. 28 is an overall external view of an assembly of the underflow control module 4. Fig. 29 is an exploded view of the split control module 4, which mainly comprises an underflow-input flange cylinder 22, an underflow-spring support 23, an underflow-trapezoidal plug return spring 24, an underflow-high pressure-proof trapezoidal plug 25, an underflow-buffer rubber sleeve 26 and an underflow collection cylinder 27. Fig. 30 is an assembly cross-sectional view of the split control module 4. Fig. 31 is a structural diagram of the underflow-input flange cylinder 22, a underflow port flange 221 at the bottom is connected to the underflow port of the cyclone separation module 1 to collect the separated liquid, a second high-pressure diversion port 223 plays a diversion guiding role in the liquid collection process, when the pressure of the liquid flow discharged from the underflow port is too high, a part of the liquid flow is guided to the underflow secondary separation module 5 through the second high-pressure diversion port 223, a second rubber sleeve fixing ring 224 at the upper part of the underflow-input flange cylinder 22 is connected to the underflow-buffer rubber sleeve 26 and can be locked with each other by a hose clamp, and when the pressure of the liquid changes, the energy can be absorbed by elastic damping of the rubber sleeve to avoid the water hammer phenomenon. Fig. 32 is a view showing the internal structure of the underflow-

input flange casing

22, and 222 is a view showing a second spring support tightening screw channel embedded in the wall of the underflow-input flange casing 22. Fig. 33 is a structural view of the underflow spring support 23, wherein the spring lower fastening leg 231 mainly fastens the underflow trapezoidal plug return spring 33, and the four screwing fastening legs 232 are fastened to the second spring support screwing screw channel 222 by screwing. Fig. 34 is a sectional view of the underflow-high pressure preventing trapezoidal plug 25, in which the fixing legs 251 on the spring are connected and fixed to the underflow-trapezoidal plug return spring 24, and when a high-pressure liquid stream flows into the underflow-input flange cylinder 22 during operation, the spring is not strong enough to resist the high-pressure impact of the liquid stream, so that the spring can move forward to block the forward direction of the liquid stream, and the liquid stream is guided into the underflow secondary separation module 5 through the second high-pressure diversion port 223 for secondary separation. Fig. 35 is a structural diagram of the underflow collecting cylinder 27, in which the trapezoidal diameter reducer 271 is matched with the underflow-high pressure preventing trapezoidal plug 25, when the underflow-trapezoidal plug return spring 24 works, the liquid flow is blocked from advancing, and the liquid flow normally flowing out of the underflow cylinder flows through the gap between the underflow-trapezoidal plug 25 and the trapezoidal diameter reducer 271 to the pure liquid collecting cylinder 272, so that single-phase medium recovery of light phase medium can be performed. The underflow recycling pipe 273 is responsible for collecting the high-pressure liquid flow part of the underflow pipe after secondary separation, the overflow recycling pipe 274 is responsible for collecting the high-pressure liquid flow part of the overflow pipe after secondary separation, and 275 is a rubber fixing ring and is connected with the underflow-buffer rubber sleeve 26 to finally form a continuous pipeline.

Fig. 36 is an external view of an assembly of the underflow secondary separation module 5. Fig. 37 is an exploded view of the underflow secondary separation module 5, which is mainly composed of an elbow 28, an underflow check valve 29, underflow-secondary separation blades 30, an underflow-secondary separation sleeve 31, and an underflow elbow 32. Fig. 38 is a sectional view of an assembly of the underflow

secondary separation module

5, 291 is a valve core of a one-way valve, 292 is a pressure spring of the valve core, and fig. 39 is an elbow 28 responsible for connecting the transition underflow control module 4 and the underflow secondary separation module 5, and the elbow is mainly connected to the underflow one-way valve 29 through a thread, and the other end is connected to the split control module 4 through a thread. Fig. 40 shows the underflow-secondary separation blade 30, which has the main structure of a fixed pitch separation blade 301, a sealing cover 303, a threaded ring 304, and the fixed pitch separation blade 301 converting the axial speed into the tangential speed for the secondary separation. Fig. 41 is an internal structure view of the underflow-secondary separating blade 30, and a blade fixing bridge 302 fixes a fixed pitch separating blade 301 and ensures smooth flow of liquid. Fig. 42 is a structural diagram of the underflow-secondary separation sleeve 31, in which a sealing thread 311 is fixed to a threaded ring 304 through threaded connection and sealed by a sealing cover 303 to ensure that liquid does not seep outwards, the connected whole is connected to the underflow check valve 29 through a thread, and the light-phase medium after secondary separation is discharged through a second main separation main item pipe 312 and collected by being connected to an overflow split flow control module. Wherein connecting seal threads 321 on underflow elbow 32 will prevent the flow of light phase medium to underflow elbow 32. Fig. 43 is a view showing the internal structure of the underflow-secondary separation sleeve 31, and the second separation secondary intermediate pipe 313 is connected with the elbow 28 through screw threads, and the separated heavy phase medium flows from the opening to the underflow collecting cylinder 27 through the underflow elbow 32 to complete the secondary separation.

Fig. 45 shows an overall appearance of an assembly in which the underflow control module 4 and the underflow secondary separation module 5 are combined. When the assembly body combined by the underflow flow control module 4 and the underflow secondary separation module 5 is not in operation, the sectional view is shown in fig. 46, and after liquid after underflow enters from the underflow-input flange cylinder 22, when the liquid flow pressure is weak, the gap between the trapezoidal diameter reduction 271 and the underflow-high pressure prevention trapezoidal plug 25 is enough to allow the liquid flow to pass through, and the liquid flow directly flows into the underflow collection cylinder 27 to complete the collection of the underflow liquid of the cyclone. A cross-sectional cut-away view of the assembly of the underflow control module 4 in combination with the underflow secondary separation module 5 is shown in figure 47, when the pressure of the liquid flow is increased sharply, the return spring 24 of the underflow-trapezoid plug is not enough to resist the impact of the liquid flow, so that the underflow-high pressure prevention trapezoid plug 25 moves forwards to block the inner space of the trapezoid reducer 271, meanwhile, the high-pressure liquid flow flows from the elbow 28 to the underflow one-way valve 29, because of the sudden increase of liquid flow, the separated light phase medium is bound to carry a small part of heavy phase medium out, therefore, the one-way valve connects the underflow-secondary separation blade 30 and the underflow-secondary separation sleeve 31 to separate the light phase medium and discharge the light phase medium to the overflow through the separation secondary top pipe 313, and the separated heavy phase medium is guided back to the underflow recovery pipe 273 through the underflow elbow 32 and is collected by the underflow collection cylinder 27.

The hose connection schematic diagram is shown in fig. 48, the heavy-phase medium hose 33 is a rubber hose, and can be connected between the first main separation inlet pipe 212 on the overflow-secondary separation sleeve 21 and the overflow recovery pipe 274 on the underflow collection cylinder 27 through a clamp, and the heavy-phase medium separated from the overflow secondary separation sleeve 21 is introduced into the underflow collection cylinder 27 through the heavy-phase medium hose 33 and is discharged after being merged with the underflow phase. The light-phase medium hose 34 is a rubber hose, and can be connected between the underflow recovery pipe 174 on the overflow collecting cylinder 17 and the second main separating pipe 312 on the underflow-secondary separating sleeve 31 through a clamp, and the light-phase medium separated from the underflow-secondary separating sleeve 31 is introduced into the overflow collecting cylinder 17 through the light-phase medium hose 34, joins with the overflow oil phase, and is discharged.

Claims

1. An automatic throughput-type split ratio self-adjusting hydrocyclone separation device, having a hydrocyclone separation module (1), characterized in that: the device also comprises an overflow flow control module (2), an overflow secondary separation module (3), a bottom flow control module (4), a bottom flow secondary separation module (5) and a heavy phase medium hose (33);

the overflow flow distribution control module (2) comprises an overflow input flange cylinder (12), an overflow-spring support (13), an overflow-trapezoidal plug return spring (14), an overflow-high pressure prevention trapezoidal plug (15), an overflow-buffer rubber sleeve (16) and an overflow collecting cylinder (17); the overflow input flange barrel (12) comprises an overflow port flange (121), a first spring support screwing screw channel (122), a first high-pressure flow dividing port (123) and a first rubber sleeve fixing ring (124); the first high-pressure shunt port (123) is provided with a thread; the overflow spring support (13) comprises a lower spring fixing leg (131) and four screwing fixing legs (132); the overflow-high pressure prevention trapezoidal plug (15) comprises an upper spring fixing support leg (151); the overflow collecting cylinder (17) comprises a trapezoidal diameter reduction (171), a pure liquid collecting cylinder (172), an overflow recycling pipe (173), an underflow recycling pipe (174) and a rubber fixing ring (175); wherein the overflow recovery pipe (173) and the underflow recovery pipe (174) are provided with threads; an overflow port flange (121) on the overflow input flange cylinder (12) is connected with an overflow port fixing flange (502) on an overflow pipe (6) in the cyclone separation module (1) through a hexagonal flange surface locking bolt (10) and a hexagonal flange surface locking nut (11); the overflow-spring support (13) is screwed with a first spring support screwing channel (122) on the overflow input flange barrel (12) through four screwing fixing feet (132); the overflow-trapezoid plug return spring (14) is fixed between the overflow-spring support (13) and the overflow-high pressure prevention trapezoid plug (15) through a lower spring fixing support leg (131) on the overflow-spring support (13) and an upper spring fixing support leg (151) on the overflow-high pressure prevention trapezoid plug (15); a first rubber sleeve fixing ring (124) of the overflow input flange barrel (12) and a rubber fixing ring (175) of the overflow collecting barrel (17) are sleeved with an overflow-buffer rubber sleeve (16); the overflow-buffer rubber sleeve (16) is locked and sealed by a hose clamp at the fixed ring;

the overflow secondary separation module (3) comprises a bent pipe (18), an overflow one-way valve (19), an overflow secondary separation blade (20) and an overflow secondary separation sleeve (21); the overflow check valve (19) comprises threads at the interfaces of two ends, a check valve spool (191) and a spool pressure spring (192); the overflow secondary separation blade (20) comprises a fixed-pitch separation blade (201), a blade fixing bridge (202), a sealing baffle cover (203) and a threaded ring (204); the overflow secondary separation sleeve (21) comprises a sealing thread (211), a first separation main intermediate pipe (212) and a first separation auxiliary intermediate pipe (213); the first main separating collar (212) is internally provided with threads; one end of the elbow (18) is in threaded connection with a first high-pressure flow-dividing port (123) on the overflow input flange barrel (12), and the other end of the elbow is in threaded connection with an overflow one-way valve (19); one side of a check valve core (191) in the overflow check valve (19) is connected with the elbow (18), and the other end of the check valve core is connected with the overflow secondary separation blade (20) through threads; a threaded ring (204) on the overflow secondary separation blade (20) is connected with a sealing thread (211) of the overflow secondary separation sleeve (21) and is sealed by a sealing baffle cover (203) on the overflow secondary separation blade (20); the internal thread of a first main separation pipe (212) on the secondary separation sleeve (21) is connected with another elbow (18) through threads, wherein the other end of the elbow (18) is connected with an underflow recovery pipe (174) on an overflow collecting cylinder (17) in the split-flow control module (2) through threads;

the underflow flow control module (4) comprises an underflow input flange cylinder (22), an underflow spring support (23), an underflow trapezoidal plug return spring (24), an underflow high-pressure-proof trapezoidal plug (25), an underflow-buffer rubber sleeve (26) and an underflow collecting cylinder (27); the underflow input flange cylinder (22) comprises an underflow port flange (221), a second spring support screwing screw channel (222), a second high-pressure flow splitting port (223) and a second rubber sleeve fixing ring (224); the second high-pressure shunt port (223) is provided with threads; the underflow-spring support (23) comprises a lower spring fixing support leg (231) and four screwing fixing support legs (232); the underflow-high pressure prevention trapezoidal plug (25) comprises an upper spring fixing support leg (251); the underflow collecting cylinder (27) comprises a trapezoidal diameter reduction (271), a pure liquid collecting cylinder (272), an underflow recycling pipe (273), an overflow recycling pipe (274) and a rubber fixing ring (275); threads are arranged on the underflow recovery pipe (273) and the overflow recovery pipe (274); the underflow input flange cylinder (22) is provided with an underflow port flange (221) which is connected with an underflow port (705) on a separation pipe (7) in the cyclone separation module (1) through a hexagonal flange face locking bolt (10) and a hexagonal flange face locking nut (11); the underflow spring support (23) is screwed with a second spring support screwing screw channel (222) on the underflow input flange cylinder (22) through four screwing fixing feet (232); the underflow trapezoidal plug return spring (24) is fixed between the underflow-spring support (23) and the underflow-high pressure preventing trapezoidal plug (25) through a lower spring fixing support leg (231) on the underflow-spring support (23) and an upper spring fixing support leg (251) on the underflow-high pressure preventing trapezoidal plug (25); a second rubber sleeve fixing ring (224) sleeved on the underflow input flange cylinder (22) and a rubber fixing ring (275) arranged on the underflow collecting cylinder (27) are sleeved with an underflow-buffering rubber sleeve (26); the underflow-buffer rubber sleeve (26) is locked and sealed by a hose clamp at the fixed ring;

the underflow secondary separation module (5) comprises an elbow pipe (28), an underflow one-way valve (29), underflow secondary separation blades (30), an underflow secondary separation sleeve (31) and an underflow elbow pipe (32); the underflow one-way valve (29) comprises threads at the interfaces of two ends, a one-way valve spool (291) and a spool pressure spring (292); the underflow secondary separation blade (30) comprises a fixed-pitch separation blade (301), a blade fixing bridge (302), a sealing baffle cover (303) and a threaded ring (304); the underflow-secondary separation sleeve (31) comprises a sealing thread (311), a second separation main intermediate pipe (312) and a second separation auxiliary intermediate pipe (313); the second main separating pipe (312) is internally provided with threads; the underflow elbow (32) comprises a connecting sealing thread (321) and a fixed bridge (322); the elbow (28) is in threaded connection with a second high-pressure shunt port (223) on the underflow input flange cylinder (22), and the other end of the elbow is in threaded connection with an underflow one-way valve (29); one side of a check valve spool (291) in the underflow check valve (29) is connected with the elbow (28), and the other end of the check valve spool is connected with the underflow secondary separation blade (30) through threads; a threaded ring (304) on the underflow secondary separation blade (30) is connected with a sealing thread (311) of the underflow secondary separation sleeve (31) and is sealed by a sealing retaining cover (303) on the underflow secondary separation blade (30); the internal thread of a second separation main item pipe (312) on the secondary separation sleeve (31) is connected with a connecting sealing thread (321) on the underflow elbow (32) through a thread, and the other end of the underflow elbow (32) is connected with an overflow recovery pipe (274) on an underflow collection cylinder (27) in the flow dividing control module (4) through a thread;

the heavy phase medium hose (33) is a rubber hose and is connected between a first main separating pipe (212) on the overflow secondary separating sleeve (21) and an overflow recovery pipe (274) on the underflow collecting cylinder (27) through a hoop; the light phase medium hose (34) is a rubber hose and is connected between an underflow recovery pipe (174) on the overflow collecting cylinder (17) and a second main separation pipe (312) on the underflow-secondary separation sleeve (31) through a hoop;

the cyclone separation module (1) comprises an overflow pipe (6), a separation pipe (7), a sealing gasket (8), a separation blade (9), a hexagonal flange surface locking bolt (10) and a hexagonal flange surface locking nut (11); the overflow pipe (6) is a cylindrical pipeline with flanges at two ends, and the flanges at two ends are respectively a blade sealing flange (601) and an overflow port fixing flange (602); the separation pipe (7) comprises a connecting flange (701), a slurry inlet pipe (702), a cylinder (703), a conical cylinder (704) and an underflow port (705); wherein, the slurry inlet pipe (702) is a cylindrical pipeline with a flange at one end and is connected to a cylinder (703) on the separation pipe (7) by welding; the cylinder (703) is a cylindrical cylinder, one end of the cylinder is connected with the connecting flange (701), and the other end of the cylinder is connected with the conical cylinder (704); the conical cylinder (704) is a conical cylinder, and the large-diameter end of the conical cylinder (704) is connected with the cylinder (703); the bottom flow port (705) is provided with a flange at the tail end of the conical cylinder (704) and is connected with the bottom flow control module (4); the separation blade (9) is a helical blade with a fixed pitch, the outline of the end of the blade is hemispherical, the other end of the blade is provided with a positioning flange (901), the diameter of the shaft of the blade is provided with a reducing aperture (902), and the separation blade is positioned and connected through a hexagonal flange surface locking bolt (10) and a hexagonal flange surface locking nut (11) according to the sequence of a connecting flange (701) in a separation pipe (7), a sealing gasket (8), the positioning flange (901) in the separation blade (9) and a blade sealing flange (601) in an overflow pipe (6) in sequence.