CN108331729A - A kind of micro-high-pressure pump - Google Patents

Abstract

The invention discloses a kind of micro-high-pressure pumps, including semiconductor control, high pressure generator and pipe-line system；There are two high pressure generator is total, it is separately positioned on the both sides of semiconductor control；The semiconductor control includes semiconductor heat exchanger fin, insulation heat exchanger plates and coordination electrode；The high pressure generator includes hydrogen container, fluid reservoir, reaction warehouse, heat conductivity heat-insulating wall, heat conductive rod, hydrogen bearing alloy reaction bed body, strainer, cylinder piston, piston ring, piston rod and liquid cylinder piston；The pipe-line system includes inlet, leakage fluid dram, feed liquor reversal valve, drain reversal valve, inlet tube and drain pipe.The present invention realizes that fluid pumps using the suction hydrogen release gas characteristic band piston of hydrogen bearing alloy, and compact is simple in structure, no running noise, can be with portable use.Meanwhile the present invention avoids the rotation abrasion of conventional high-tension pump, not only reduces the maintenance cost of equipment, also substantially increase the operational efficiency of high-pressure pump without any rotating mechanism.

Description

A micro high pressure pump

technical field

The invention relates to the technical field of fluid delivery, in particular to a miniature high-pressure pump.

Background technique

The high-pressure pump is mainly used to transport fluid or pressurize the fluid. It can make the output fluid have a strong impact. It is widely used in various occasions that require high-pressure fluid and high pulse requirements in the process. With the rapid development of my country's pump industry, high-pressure pumps are used more and more frequently. At present, there are high-pressure plunger pumps, high-pressure reciprocating pumps, high-pressure electric test pumps and so on.

Most of the existing high-pressure pumps use motors or other rotating devices as the main driving mechanism. Due to the existence of the rotating structure, the volume of this type of high-pressure pump cannot be made small, the operating noise is large, and mechanical wear requires daily maintenance. The operating efficiency of the pump It will also be affected by the rotating equipment and cause some wear and tear. In addition, the high-pressure pump with rotating parts has a complex mechanical structure, high manufacturing process requirements, high cost, and troublesome maintenance.

Contents of the invention

The object of the present invention is to provide a micro-high pressure pump to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A miniature high-pressure pump, including a semiconductor controller, a high-voltage generator and a pipeline system; there are two high-voltage generators, which are respectively arranged on both sides of the semiconductor controller; the semiconductor controller includes a semiconductor heat exchange sheet, an insulating heat exchange Plate and control electrode, the semiconductor heat exchange fins are placed vertically, and an insulating heat exchange plate is installed on the left and right sides of the semiconductor heat exchange fins, and the insulating heat exchange plates are closely attached to the semiconductor heat exchange fins; the high-voltage generator includes a hydrogen storage tank, Liquid storage tank, reaction chamber, heat conduction insulation wall, heat conduction rod, hydrogen storage alloy reaction bed, filter screen, cylinder piston, piston ring, piston connecting rod and liquid cylinder piston, the liquid storage tank is installed above the hydrogen storage tank, and the liquid storage The tank and the hydrogen storage tank are connected in the middle, the liquid cylinder piston is installed in the liquid storage tank, the air cylinder piston is installed in the hydrogen storage tank, the liquid cylinder piston and the air cylinder piston are connected by the piston connecting rod; the liquid cylinder piston divides the liquid storage tank into a liquid chamber And the upper protective gas chamber, the cylinder piston divides the upper part of the hydrogen storage tank into the lower protective gas chamber and the hydrogen chamber; the reaction chamber is located at the bottom of the hydrogen storage tank, and the reaction chamber is equipped with a hydrogen storage alloy reaction bed and a heat conduction rod. There is a filter screen at the connection between the upper part and the hydrogen tank, and the thermal insulation wall is tightly wrapped around the reaction chamber of the hydrogen storage tank. Both ends of each thermal rod are connected to the thermal insulation wall; the pipeline system includes One end of the liquid inlet is connected to the liquid source, and the other end is connected to the inlet of the liquid inlet reversing valve. The liquid inlet reversing valve The two outlets of the outlet are respectively connected with two inlet pipes to the inlet ports of the liquid storage tanks of the two high-pressure generators, one end of the liquid discharge port outputs high-pressure liquid, and the other end is connected to the outlet of the liquid discharge reversing valve, and the two ends of the liquid discharge reversing valve Each inlet is respectively connected with two discharge pipes to the outlet ports of the liquid storage tanks of the two high-pressure generators.

As a further solution of the present invention: the upper end and the lower end of the piston of the cylinder are both sleeved with piston rings, and the piston rings are in seamless contact with the inner wall of the hydrogen storage tank.

As a further solution of the present invention: both the upper protective gas chamber and the lower protective gas chamber are injected with carbon dioxide gas.

As a further solution of the present invention: multiple heat conducting rods evenly arranged horizontally are installed in the reaction chamber, and the hydrogen storage alloy reaction bed is wrapped around the heat conducting rods.

As a further solution of the present invention: the heat-conducting heat-preservation wall is closely attached to the two insulating heat-exchanging plates on both sides of the semiconductor controller.

Compared with the prior art, the beneficial effect of the present invention is that the present invention utilizes the hydrogen absorption and release characteristics of the hydrogen storage alloy to drive the piston to realize fluid pumping, has small size, simple structure, no running noise, and can be used portablely. At the same time, the miniature high-pressure pump of the present invention has no rotating mechanism, avoids the rotational wear of the traditional high-pressure pump, not only reduces the maintenance cost of the equipment, but also greatly improves the operating efficiency of the high-pressure pump.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1-liquid inlet, 2-discharge port, 3-inlet reversing valve, 4-discharge reversing valve, 5-inlet pipe, 6-discharge pipe, 7-insulated heat exchange plate, 8-control electrode, 9-hydrogen storage tank, 10-liquid storage tank, 11-reaction chamber, 12-heat conduction insulation wall, 13-heat conduction rod, 14-hydrogen storage alloy reaction bed, 15-filter, 16-hydrogen Storehouse, 17-cylinder piston, 18-piston ring, 19-lower protective gas storehouse, 20-piston connecting rod, 21-upper protective gas storehouse, 22-liquid cylinder piston, 23-liquid storehouse, 24-semiconductor heat exchanger.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, a kind of miniature high-pressure pump, comprises semiconductor controller, high-voltage generator and pipeline system; There are two high-pressure generators, are respectively arranged on both sides of semiconductor controller; Said semiconductor controller includes semiconductor heat exchange sheet 24, insulating heat exchange plate 7 and control electrode 8, the semiconductor heat exchange sheet 24 is placed vertically, and an insulating heat exchange plate 7 is installed on the left and right sides of the semiconductor heat exchange sheet 24, and the insulating heat exchange plate 7 is closely connected with the semiconductor heat exchange sheet 24 Fitting; the high-pressure generator includes a hydrogen storage tank 9, a liquid storage tank 10, a reaction chamber 11, a heat conduction insulation wall 12, a heat conduction rod 13, a hydrogen storage alloy reaction bed body 14, a filter screen 15, a cylinder piston 17, and a piston ring 18. The piston connecting rod 20 and the liquid cylinder piston 22, the liquid storage tank 10 is installed above the hydrogen storage tank 9, the liquid storage tank 10 and the hydrogen storage tank 9 are connected in the middle, the liquid cylinder piston 22 is installed in the liquid storage tank 10, and the cylinder piston 17 is installed in the hydrogen storage tank 9, the liquid cylinder piston 22 and the cylinder piston 17 are connected by the piston connecting rod 20; The top of the hydrogen tank 9 is divided into a lower protective gas chamber 19 and a hydrogen chamber 16; the reaction chamber 11 is located at the bottom of the hydrogen storage tank 9, and a hydrogen storage alloy reaction bed 14 and a heat conduction rod 13 are installed in the reaction chamber 11. Above the reaction chamber 11 A filter screen 15 is arranged at the communication place between the hydrogen storage tank 16, which can effectively filter the hydrogen storage alloy powder in the hydrogen gas. The heat conduction insulation wall 12 is tightly wrapped around the reaction chamber 11 of the hydrogen storage tank 9, and the two sides of each heat conduction rod 13 Both ends are connected with the heat conduction insulation wall 12; the pipeline system includes a liquid inlet 1, a liquid outlet 2, a liquid inlet reversing valve 3, a liquid discharge reversing valve 4, a liquid inlet pipe 5 and a liquid discharge pipe 6, and One end of the liquid port 1 is connected to the liquid source, and the other end is connected to the inlet of the liquid inlet reversing valve 3. The two outlets of the liquid inlet reversing valve 3 are respectively connected to the two inlet pipes 5 and the inlets of the liquid storage tanks 10 of the two high-pressure generators. One end of the liquid discharge port 2 outputs high-pressure liquid, and the other end is connected to the outlet of the liquid discharge reversing valve 4, and the two inlets of the liquid discharge reversing valve 4 are respectively connected to two liquid discharge pipes 6 to the liquid storage of the two high-pressure generators Tank 10 outlet end.

Further, the upper end and the lower end of the cylinder piston 17 of the present invention are provided with a piston ring 18, and the piston ring 18 is in seamless contact with the inner wall of the hydrogen storage tank 9, and is used for the space sealing of the hydrogen storage tank 9; the liquid cylinder A sealing ring is provided on the outside of the piston 22 for space sealing of the liquid storage tank 10 .

Further, the upper protective gas chamber 21 and the lower protective gas chamber 19 of the present invention are both injected with carbon dioxide gas to ensure the safety during the use of hydrogen.

Further, the reaction chamber 11 of the present invention is equipped with a plurality of evenly arranged heat conducting rods 13 horizontally, and the hydrogen storage alloy reaction bed 14 is wrapped around the heat conducting rods 13 to enhance heat exchange and reaction efficiency.

Further, the heat conduction insulation wall 12 of the present invention is closely attached to the two insulating heat exchange plates 7 on both sides of the semiconductor controller, and the two high voltage generators are installed on the left and right sides of the semiconductor controller.

The working principle of the present invention is:

Each high-pressure generator of the micro high-pressure pump has two working modes: high-temperature pressurization mode and low-temperature self-priming mode. By controlling the two working modes of the two high-pressure generators to reciprocate and alternately, the delivery and increase of fluid can be realized. pressure.

High-temperature pressurization mode of the high-pressure generator: When the heat-conducting and insulating wall 12 is in a high-temperature heating state, the heat-conducting and insulating wall 12 transfers heat to the heat-conducting rod 13 in the reaction chamber 11, thereby heating the hydrogen storage alloy reaction bed 14 and storing hydrogen The alloy reaction bed 14 releases a large amount of hydrogen quickly after absorbing heat, and a large amount of hydrogen immediately enters the hydrogen chamber 16, and the high-pressure hydrogen pushes the cylinder piston 17 to move upward, making the volume of the hydrogen chamber 16 gradually increase, and then pushes the liquid cylinder piston 22 to squeeze the liquid upward chamber 23, so that the volume of the liquid chamber 23 gradually decreases, and the liquid stored in the liquid chamber 23 will be squeezed out of the liquid storage tank 10 by high pressure.

Low-temperature self-priming mode of the high-pressure generator: When the heat-conducting and insulating wall 12 is in a low-temperature cooling state, the heat-conducting and insulating wall 12 will absorb heat from the heat-conducting rod 13 in the reaction chamber 11, thereby cooling the hydrogen-storage alloy reaction bed 14 and storing hydrogen The alloy reaction bed body 14 quickly absorbs a large amount of hydrogen after releasing heat, and the hydrogen in the hydrogen chamber 16 is sucked into the reaction chamber 11 in large quantities, and the negative pressure generated drives the cylinder piston 17 to move downward, making the volume of the hydrogen chamber 16 gradually smaller, and then The piston 22 of the liquid cylinder is driven to move downwards, so that the volume of the liquid chamber 23 gradually increases. At this time, the negative pressure generated by the liquid chamber 23 will suck the external liquid into the liquid storage tank 10 .

The liquid inlet 1 of the micro high-pressure pump is connected to the liquid source, and the liquid discharge port 2 outputs high-pressure liquid. The control electrode 8 of the semiconductor controller is connected to the control power supply. , the left side is heated, the left insulating heat exchange plate 7 that is closely attached to it is in a high-temperature heating state, and the right insulating heat exchange plate 7 is in a low-temperature cooling state. Through heat conduction, the heat conduction heat preservation wall 12 of the left high-voltage generator In the high temperature heating state, the heat conduction insulation wall 12 of the right high pressure generator is in the low temperature cooling state. At this time, the left high pressure generator works in the high temperature pressurization mode, and the right high pressure generator works in the low temperature self-priming mode to control the liquid intake The outlet of the reversing valve 3 is switched to the right inlet pipe 5, the inlet of the discharge reversing valve 4 is switched to the left discharge pipe 6, and the liquid is sucked to the right side through the inlet 1 and the right inlet pipe 5 Liquid storage tank 10, the liquid stored in the left liquid storage tank 10 is transported out of the micro high-pressure pump at high pressure through the left liquid discharge pipe 6 and the liquid discharge port 2; The left side is cooled and the right side is heated. The right insulating heat exchange plate 7 that is closely attached to it is in a high-temperature heating state, and the left insulating heat exchange plate 7 is in a low-temperature cooling state. Through heat conduction, the right high-voltage generator The heat conduction insulation wall 12 is in a high temperature heating state, and the heat conduction insulation wall 12 of the left high pressure generator is in a low temperature cooling state. At this time, the right high pressure generator works in a high temperature pressurization mode, and the left high pressure generator works in a low temperature self-priming mode , control the outlet of the liquid inlet reversing valve 3 to switch to the left liquid inlet pipe 5, and the inlet of the liquid discharge reversing valve 4 to switch to the right liquid discharge pipe 6, and the liquid is discharged through the liquid inlet 1 and the left liquid inlet pipe 5 It is sucked into the left side liquid storage tank 10, and the stored liquid in the right side liquid storage tank 10 is delivered out of the micro high-pressure pump at high pressure through the right side liquid discharge pipe 6 and liquid discharge port 2.

By controlling the polarity change of the external DC power supply, the two working modes of the two high-voltage generators can be reciprocated and alternated, so as to realize the continuous high-voltage delivery of the fluid. By controlling the current of the DC power supply, the heating and cooling temperatures of the semiconductor heat exchanger 24 can also be precisely controlled, thereby accurately adjusting the equilibrium hydrogen pressure inside the hydrogen storage tank 9 and realizing precise control of the output pressure of the micro high-pressure pump.

Hydrogen storage alloys can absorb hydrogen at low temperature and release hydrogen after heating. The pressure during hydrogen release can be as high as tens to hundreds of MPa, and the process of absorbing and releasing hydrogen is reversible and reciprocating. Using this feature can realize High pressure fluid pumping. At the same time, the hydrogen storage capacity of the hydrogen storage alloy is very strong, and a large amount of hydrogen can be stored with only a small amount of hydrogen storage alloy, which makes the device designed using the hydrogen storage alloy very compact without any rotating mechanism.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. a kind of micro-high-pressure pump, including semiconductor control, high pressure generator and pipe-line system；High pressure generator shares two It is a, it is separately positioned on the both sides of semiconductor control；It is characterized in that：The semiconductor control include semiconductor heat exchanger fin, Insulation heat exchanger plates and coordination electrode, semiconductor heat exchanger fin are disposed vertically, and semiconductor heat exchanger fin each side installs one piece of insulation Heat exchanger plates, insulation heat exchanger plates are fitted closely with semiconductor heat exchanger fin；The high pressure generator includes hydrogen container, fluid reservoir, reaction Storehouse, heat conductivity heat-insulating wall, heat conductive rod, hydrogen bearing alloy reaction bed body, strainer, cylinder piston, piston ring, piston rod and fluid cylinder are lived Plug, fluid reservoir are mounted on above hydrogen container, and unicom among fluid reservoir and hydrogen container, liquid cylinder piston is mounted in fluid reservoir, cylinder Piston is mounted in hydrogen container, and liquid cylinder piston is connected with cylinder piston by piston rod；Fluid reservoir is divided by liquid cylinder piston Liquid cabin and upper protective gas storehouse, cylinder piston will be divided into lower protective gas storehouse and hydrogen storehouse above hydrogen container；Reaction warehouse Positioned at the bottom of hydrogen container, hydrogen bearing alloy reaction bed body and heat conductive rod is installed in reaction warehouse, above reaction warehouse with hydrogen storehouse it Between connection position be provided with strainer, heat conductivity heat-insulating wall tight is at the reaction warehouse surrounding of hydrogen container, the both ends of every heat conductive rod It is connected with heat conductivity heat-insulating wall；The pipe-line system includes inlet, leakage fluid dram, feed liquor reversal valve, drain reversal valve, inlet tube And drain pipe, inlet one end connect fluid supply, the other end connects the import of feed liquor reversal valve, two outlets of feed liquor reversal valve Two inlet tubes are separately connected to the fluid reservoir input end of two high pressure generators, leakage fluid dram one end exports highly pressurised liquid, another The outlet of connected drainage reversal valve, two imports of drain reversal valve is held to be separately connected two drain pipes to two high pressure generators Fluid reservoir outlet end.

2. micro-high-pressure pump according to claim 1, it is characterised in that：The top and bottom of the cylinder piston are arranged There are piston ring, piston ring to be contacted with the interior wall seamless of hydrogen container.

3. micro-high-pressure pump according to claim 1, it is characterised in that：The upper protective gas storehouse and lower protective gas storehouse It is injected with carbon dioxide gas.

4. micro-high-pressure pump according to claim 1, it is characterised in that：More even levels are installed in the reaction warehouse The heat conductive rod of arrangement, hydrogen bearing alloy reaction bed body are wrapped in the surrounding of heat conductive rod.

5. micro-high-pressure pump according to claim 1, it is characterised in that：The heat conductivity heat-insulating wall and semiconductor control two Two insulation heat exchanger plates of side fit closely.