CN112983776A

CN112983776A - Funnel pump

Info

Publication number: CN112983776A
Application number: CN201911307956.5A
Authority: CN
Inventors: 周承岗
Original assignee: Pan Tianteng Shenzhen Technology Co ltd
Current assignee: Pan Tianteng Shenzhen Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2021-06-18

Abstract

The funnel pump is a reciprocating pump using a same-direction serial conical funnel as a pumping component, the funnel can be used less or not at all due to different forward and reverse flow field characteristics due to the shape of the funnel, and the funnel has the characteristics of a power pump.

Description

Funnel pump

Technical Field

The present invention relates to a pump.

Background

The pump is used as an energy-consuming machine for conveying fluid or pressurizing fluid, and is widely applied to production and life, the pump is almost operated in places where fluid flows, and the whole quantity is quite large, so that the technical level of the pump has obvious influence on the aim of realizing energy conservation and emission reduction of the whole human society. The pump is divided according to the movement mode of the pumping assembly, mainly comprises a rotary pump and a reciprocating pump, and most motors and internal combustion engines are used as prime movers no matter which type, the assembly is provided with a complete prime mover structure, the degree of integration with other assemblies is low, the occupied space is large, and the weight of the assembly also influences the overall power density to a great extent. Compared with other types of pumps, the reciprocating pump has the advantages of high efficiency, large discharge pressure and the like, but has the problems of large occupied space and heavy weight of a prime motor, and also needs a special motion mechanism to convert circular motion into reciprocating motion; the multi-cylinder structure is generally only suitable for adopting a parallel connection mode, is provided with an inlet check valve and an outlet check valve which are independent respectively, has more easily damaged parts, or needs a central flow distribution device such as a flow distribution disc, a flow distribution shaft and the like, has a more complex structure and is easy to wear; when the suction and discharge of the working process are switched, the pressure of fluid is suddenly changed in a closed environment, so that impact is easily brought to the valve, and the valve is usually required to work at a lower speed for avoiding the problem.

Disclosure of Invention

The invention mainly aims to provide a reciprocating pump taking conical funnels connected in series in the same direction as a pumping component, and the reciprocating pump can use few or no one-way valves due to different forward and reverse flow field characteristics caused by the shape of the funnels and has the characteristics of a power pump.

The funnel pump comprises a cylinder body, a pumping element and a power device, and is characterized in that the pumping element comprises more than two conical funnels which are connected in series in the same axial direction, the large ends of the conical funnels are respectively fixedly connected with the cylinder body in a sealing way or movably connected with the cylinder body in a sealing way to form a variable volume space with an opening facing to the center, and the central holes of the small ends are communicated to form a central channel; under the action of the power device, the conical funnels can approach or separate from each other, so that the volume of the variable volume space is changed; when the conical funnels are close to each other, fluid in the variable volume space can flow to the central hole in an accelerated mode, and flows to the direction guided by the small end along the central channel, and when the conical funnels are separated from each other, the fluid is sucked into the variable volume space from the direction of the central channel or from the one-way valve arranged in the direction of the outer edge.

The power device of the invention comprises a magnet or a magnetic-electric induction device with mutual action of magnetic poles, a conical funnel is directly driven to move axially by magnetic force or ampere force, and a control device is arranged to change the current magnitude or frequency so as to change the output power.

The cone-shaped hopper is divided into a fixed cone hopper and a movable cone hopper which are arranged at intervals, the movable cone hoppers can work when moving towards the front direction and the rear direction, and a plurality of movable cone hoppers are distributed in a balanced mode at different phases so as to reduce vibration and output pulsation.

The one-way valve arranged in the outer edge direction is an annular valve, and is a movable ring valve integrating a valve and a sealing ring or a fixed ring valve fixed on a cylinder body.

The central hole of the conical funnel is provided with a tail end flow guide structure, so that the incident angle or the flow direction sectional area of fluid to the central channel can be changed, or a flexible ring which can play a role of a one-way valve is arranged.

The invention has the advantages that the guide rod is connected with the conical funnel, so that the relative guide length of the axial movement of the conical funnel can be increased, and the axial movement is smoother.

The guide rod of the invention has a long and narrow cross section, or the conical surface of the conical funnel is distributed with guide reinforcing ribs which can enhance the structural rigidity and can guide the fluid to flow straightly or whirlly centripetally to reduce the eddy current loss.

The inner cavity of the cylinder body is provided with a self-lubricating material layer capable of reducing the motion resistance, the main body structure of the conical funnel is made of light high-strength materials, and the surface of the conical funnel is provided with an anti-friction and anti-wear material layer.

The inner cavity of the cylinder body of the invention is provided with a plurality of conical funnel combinations which are connected in series and are connected in parallel transversely.

The present invention has a "three-chamber one-nozzle" structure to be a jet pump or, alternatively, to be used as a power propeller for jetting water or air streams.

Drawings

FIG. 1 is a block diagram of an embodiment of a magnetically actuated distributed suction;

FIG. 2 is a schematic fluid flow diagram;

FIG. 3 is a structure of an embodiment of the suction method with concentration and distribution;

FIG. 4 is a block diagram of an embodiment of a reluctance accelerating coil drive;

FIG. 5 is a view of the movable ring valve;

FIG. 6 is a view of the fixed ring valve;

FIG. 7 is a view of a central bore flex ring;

FIG. 8 is a view showing a connection structure of a guide bar;

fig. 9 is a view showing the structure of the radial flow guide device.

Detailed Description

Referring to fig. 1, the cylinder body 3 has a straight cylinder working section, which can be a continuous whole or formed by splicing in sections; the pumping element comprises more than two conical hoppers which are connected in series in the same axial direction and are divided into a fixed conical hopper 4 and a movable conical hopper 7, the shapes of the conical hoppers are similar but can have different appearance parameters, composition structures or installation modes, and the straight cylinder working section of the cylinder body 3 is fixedly connected with the large end of the fixed conical hopper 4 in a sealing way and is movably connected with the movable conical hopper 7 in a sealing way; the fixed cone hopper 4 and the movable cone hopper 7 can generate relative displacement in the axial direction to jointly form a semi-closed axial variable volume space with an opening facing to the center, and central holes of small ends of the fixed cone hopper and the movable cone hopper are communicated to form an axial central channel; a coil 5 is embedded in the fixed cone hopper 4, and an axial magnetic field can be generated after the fixed cone hopper is electrified; a magnet 6 which can generate magnetic pole attraction or repulsion with the coil 5 is embedded in the movable cone 7; when the coil 5 is introduced with single-phase alternating current, the direction of a generated magnetic field changes along with the continuous change of the direction of the current, so that the coil 5 and the magnet 6 are alternately attracted or repelled and are conducted to the fixed cone hopper 4 and the movable cone hopper 7 to make the fixed cone hopper and the movable cone hopper reciprocate relatively, and the volume of a variable volume space changes to discharge or suck fluid; a control device such as a switch, a contactor, or a frequency converter is connected to the coil 5, and the output power can be controlled by changing the current level or frequency of the coil 5. The cylinder body 3 is provided with a channel 9, the outer edge of the movable cone bucket 7 is provided with a movable ring valve 8 communicated with the channel 9, and the movable ring valve 8 is a resistance-reducing sealing device of the movable cone bucket 7 and is a one-way valve which is opened in the suction stroke and closed in the compression stroke; when the fixed cone hopper 4 and the movable cone hopper 7 are close to each other, the fluid in the fixed cone hopper 4 can only flow to the central hole, the flow is accelerated due to the fact that the cross section area is gradually reduced along the flowing direction, and finally the fluid flows to the direction of the outlet 1 guided by the small end along the central channel, when the fixed cone hopper 4 and the movable cone hopper 7 are separated from each other, the fluid mainly enters the variable volume space from the channel 9, a part of the fluid is sucked from the direction of the central channel, and when the fluid flows in the central channel, the fluid outside is driven to be sucked from the inlet 10, and the whole flow direction is as shown in. The technical links are not limited to the exemplified types, and other alternatives can be adopted, for example, the fixed cone hopper 4 and the movable cone hopper 7 can be connected with the cylinder body 3 in a dynamic sealing manner, and both sides can move actively during work; the power device can also adopt a reluctance type accelerating coil or other types of magnetoelectric linear reciprocating drive devices, or a push-pull rod, a flexible belt and other devices are connected with the moving cone bucket 7 and driven by traditional manpower, a motor or an engine; the split combination of the movable ring valve 8 and the channel 9 can also be replaced by an integrated one-way valve; in order to simplify the structure, the channel 9 is not needed, the variable volume space only sucks fluid from the central channel, and the fluid flows from the inlet 10 to the outlet 1 in total amount due to the fact that the forward flow of the central channel is larger than the reverse flow; the distributed suction mode can also be replaced by a centralized suction mode and then a distributed suction mode, for example, as shown in fig. 3, an outer cover 11 is added on the basis of fig. 1, and fluid is sucked from an inlet 12 in a centralized mode and then is sucked into the cylinder 3 from each inlet on the inner layer in a scattered mode; the conical funnels can be arranged linearly or in a curve, and the movement mode can be translation or front-back swing; the cone-shaped funnels can also be hermetically connected by adopting soft membrane materials to form a wholly telescopic variable-volume structure similar to an accordion structure.

In FIG. 1, a coil 5 is embedded in a fixed cone 4, and an axial magnetic field can be generated after the coil is electrified; a magnet 6 which can attract or repel the coil 5 is embedded in the movable cone 7 and is a permanent magnet or an electromagnet; when the coil 5 is electrified with single-phase alternating current, the direction of a generated magnetic field changes along with the continuous change of the direction of the current, the coil 5 and the magnet 6 are alternately attracted or repelled and are conducted to the fixed cone hopper 4 and the movable cone hopper 7 to enable the fixed cone hopper and the movable cone hopper to do relative reciprocating motion, and the volume of a variable volume space changes to discharge or suck fluid. As shown in FIG. 4, the structure using magnetic force as power is changed into the structure using ampere force as power on the basis of FIG. 2, each moving cone 7 has a corresponding reluctance accelerating coil 13 in the axial direction and is wound on an outer cover 11, an electric box cover 14 is arranged on the outer layer, each reluctance accelerating coil 13 consists of more than two independent solenoids and is distributed at different axial positions in the axial moving range of the corresponding moving cone 7, and different solenoids are controlled by a thyristor circuit or an automatic contactor to be sequentially powered on and powered off to form a magnetic traveling wave reciprocating in the axial direction, so that the magnet 6 made of soft magnetic material is magnetized and reciprocates under the action of the magnetic traveling wave. A control device such as a current controller or a frequency converter is connected to the coil 5 or the reluctance accelerating coil 13, and the output power can be controlled by changing the magnitude or frequency of the current.

Referring to fig. 1, the conical funnels connected in series in the same direction are divided into two types of fixed conical hoppers 4 and movable conical hoppers 7 which are arranged at intervals, the movable conical hoppers 7 can work in combination with the adjacent fixed conical hoppers 4 when moving in the front and back directions, 4 movable conical hoppers 7 are in balanced distribution at different phases, at the same time in the figure, the first conical hopper 7 moves from the left extreme to the right from the left, the last one is opposite, the second and the third move from the middle position to the opposite directions respectively, and therefore vibration and output pulsation are reduced, and in addition, an air bag 2 can be adopted to achieve the effect of reducing the output pulsation.

Referring to fig. 5, a channel 9 is arranged on the cylinder 3, and a valve ring 19 and a sealing ring 18 are arranged on the outer edge of the movable cone bucket 7 to form a movable ring valve; the valve ring 19 is fixedly connected with the movable cone bucket 7, the sealing ring 18 is sleeved on the conical surface of the valve ring 19 and can be in contact with or separated from the conical surface through relative axial displacement, and meanwhile, the peripheral surface of the sealing ring is in sealing movable connection with the inner wall of the cylinder body 3, so that the sealing ring is not only an axial movement anti-drag sealing device of the movable cone bucket 7, but also a one-way valve, works under axial fluid pressure, is opened in an intake stroke and is closed in a compression stroke; the valve ring 19 has sealing rings 18 on both axial sides, serving the front and rear adjacent two volume-changing spaces, respectively. The combination of the movable ring valve and the channel 9 can also be replaced by a fixed ring valve fixed on the cylinder 3, as shown in fig. 6, the inner wall of the cylinder 3 is provided with an annular trapezoidal groove 21, the channel is communicated with the outside of the cylinder 3, the working surface in the groove 21 is hermetically connected with the elastic sealing ring 20, the elastic sealing ring 20 deforms under the pressure of external fluid to open the channel in the suction stroke, and the elastic sealing ring 20 closes the channel under the action of self elasticity and the pressure of internal fluid in the compression stroke.

As shown in fig. 2, the central hole positions of the fixed cone hopper 4 and the movable cone hopper 7 are provided with end flow guide structures, so that the incident angle or the flow direction cross section area of the fluid to the central channel can be changed; the incident angle is an included angle between the flow direction and the normal direction of the central channel, and when the incident angle is increased, the turbulent flow generated by mutual collision of the side flows can be reduced, so that the flow line is smoother; the reduction in the cross-sectional flow area further accelerates the flow toward the outlet. In order to prevent the fluid in the central channel from being sucked into the variable volume space, as shown in fig. 7, a flexible ring 22 made of flexible sealing materials such as rubber films or coated fabrics is arranged on part of the fixed cone hopper 4 and the movable cone hopper 7, one end of the flexible ring is hermetically sleeved at the central hole positions of the fixed cone hopper 4 and the movable cone hopper 7, the other end of the flexible ring is a free end and extends out towards the outlet direction to separate the central channel from the variable volume space, and the free end can be contacted with or separated from the inner wall of the central hole of the front fixed cone hopper 4 or the movable cone hopper 7 under the action of fluid pressure, so that the flexible ring plays a role of a one-way valve in the variable volume space and can keep.

In the structure in fig. 1, the movable cone bucket 7 uses the inner side surface of the cylinder 3 as a guide surface, and the width is too large to easily block the movement, so that as shown in fig. 8, a guide rod 23 is arranged near the central hole, the middle section of the guide rod is connected with the movable cone bucket 7 in a sliding way to be used as a sliding guide surface, and two ends of the guide rod are respectively fixedly connected with two cone buckets 4 in front of and behind the movable cone bucket 7, so that the axial matching length of the sliding auxiliary shaft relative to the matching width can be increased, and the axial movement is smoother. The guide rods 23 can be arranged in opposite directions, or only one guide rod can be arranged at the center of the center hole and connected with the fixed cone hopper 4 and the movable cone hopper 7 through spokes.

In fig. 9, the guide rod 23 has a long and narrow cross section, or the conical surface of the moving cone bucket 7 is distributed with flow guide reinforcing ribs 24 which are distributed radially or spirally, so that the structural rigidity can be enhanced, and the fluid can be guided to flow radially or rotate radially inwards in order to reduce the eddy current loss.

In fig. 1, a self-lubricating material layer capable of reducing motion resistance is arranged in an inner cavity of a cylinder 3, and comprises but is not limited to nylon and teflon, main structures of a fixed cone hopper 4 and a fixed cone hopper 7 are made of light high-strength materials, and comprise but not limited to glass fiber reinforced plastics, carbon fiber and other composite materials, and a friction-reducing and wear-resisting material coating layer is arranged on the surface of the main structures.

The series combination shown in figure 1 is taken as a unit, the outlet 1 and the inlet 10 are respectively connected and are transversely connected in parallel to form a working group with higher power.

The structure shown in figure 1 is used as a fluidic device, and a three-chamber one-nozzle structure with a suction chamber, a mixing chamber, a pressure expansion chamber and a nozzle is connected to an outlet 1 to form a jet pump or be used as a power propeller for jetting water flow or air flow in mobile equipment such as submarines, ships, vehicles, airships and the like.

Claims

1. The funnel pump comprises a cylinder body, a pumping element and a power device, and is characterized in that the pumping element comprises more than two conical funnels which are connected in series in the same axial direction, the large ends of the conical funnels are respectively fixedly connected with the cylinder body in a sealing way or movably connected with the cylinder body in a sealing way to form a variable volume space with an opening facing to the center, and the central holes of the small ends are communicated to form a central channel; under the action of the power device, the conical funnels can approach or separate from each other, so that the volume of the variable volume space is changed; when the conical funnels are close to each other, fluid in the variable volume space can flow to the central hole in an accelerated mode, and flows to the direction guided by the small end along the central channel, and when the conical funnels are separated from each other, the fluid is sucked into the variable volume space from the direction of the central channel or from the one-way valve arranged in the direction of the outer edge.

2. The hopper pump according to claim 1, characterized in that the power means comprise magnets or magneto-electric induction means with magnetic poles interacting to directly drive the cone hopper in axial movement with magnetic or ampere force, there being control means to vary the current magnitude or frequency and thus the output power.

3. The hopper pump as claimed in claim 1 or 2, wherein the tapered hoppers are divided into two types of fixed cone hoppers and moving cone hoppers which are spaced apart from each other, the moving cone hoppers are operable to move in both forward and backward directions, and a plurality of moving cone hoppers are arranged in a balanced manner at different phases to reduce vibration and output pulsation.

4. The funnel pump of claim 3, wherein the one-way valve disposed in the direction of the outer edge is an annular valve, which is a movable ring valve with a valve and a sealing ring integrated into one, or a fixed ring valve fixed to the cylinder.

5. The funnel pump of claim 1, 2 or 4, wherein the central opening of the conical funnel is provided with a terminal flow directing structure to vary the angle of incidence or cross-sectional area of flow to the central passage, or with a flexible ring that acts as a one-way valve.

6. The funnel pump of claim 5 wherein a guide rod is attached to the conical funnel to increase the length of the axial movement of the conical funnel and allow smoother axial movement.

7. The pump as claimed in claim 1, 2, 4 or 6 wherein the guide rod has a narrow cross section, or the conical surface of the conical funnel has guide ribs distributed thereon, which can enhance the structural rigidity and guide the fluid to flow radially or to swirl radially to reduce the eddy current loss.

8. The funnel pump according to claim 7, wherein the inner cavity of the cylinder body is provided with a self-lubricating material layer capable of reducing the motion resistance, the main body structure of the conical funnel is made of a light high-strength material, and the surface of the conical funnel is provided with a friction-reducing and wear-resisting material layer.

9. The funnel pump of claims 1, 2, 4, 6 or 8 wherein a plurality of serially connected cone assemblies are connected in parallel in a transverse direction.

10. The hopper pump of claim 9, characterized by being provided with a "three-chamber one-nozzle" structure to be a jet pump or to be used as a power impeller for spraying water or air flow.