CN112502924A

CN112502924A - Thermal power generation method and design of components contained in thermal power generation method

Info

Publication number: CN112502924A
Application number: CN202011114938.8A
Authority: CN
Inventors: 王峻峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-03-16

Abstract

A thermal power generation method and component design thereof. The power generation by hot water and the power generation by hot gas comprise: photothermal, boiler, smelting waste heat, geothermal, etc. The system is used for families, motor homes, energy consumption enterprises, frontier sentries and the like. The component includes: the system comprises a heat exchanger (cooler), an integrated liquid injection pump, a power generation pump, a power generator and a control system. The power generation principle is as follows: mixing butane pentane (propane for standby) and the like with lubricating oil, pumping the mixture into a heat exchanger (not reaching a high pressure level) through an integrated liquid injection pump, carrying the lubricating oil after gasification, flowing through a power generation pump, cooling, liquefying and recycling. Key to power generation efficiency 1: the vane pump (forced expansion work). Key to power generation efficiency 2: the internal consumption generates heat, and the heat can be returned to thermal power generation again through temperature compensation.

Description

Thermal power generation method and design of components contained in thermal power generation method

The technical field is as follows:

the power generation by hot water and the power generation by hot gas comprise: photothermal, boiler, smelting waste heat, geothermal, etc. If the verification is feasible, the method is applied to families, motor homes and ships, energy consumption enterprises, frontier sentries, multi-unit cluster power supply and the like.

Background art:

steam turbine, hydroelectric power generation, wind power generation, geothermal power generation, waste heat power generation, nuclear power, turboexpander of current thermal power generation, distinguish with this engine principle, in short: the method can be confirmed to be worthy of exploration only by referring to the current situation of the solar cell panel. An engine is constructed by adopting a steam turbine principle, a plunger pump is considered as the engine, and the gravity center is gradually turned to a vane pump as the engine principle: the vane pump (forced expansion work) is not provided by other air pumps.

The heat of vaporization such as butane pentane is about 200 times as high as the heat of vaporization because it is the heat of vaporization, and the temperature rises by 1 ℃. Namely, the proportion of heat exchange quantity occupied by liquefied heat dissipation is too large, but the liquefied heat dissipation is difficult to release through expansion work, and the liquefied heat dissipation is used for forcing the expansion work to release, so that the potential advantage of the power generation is realized.

Electricity, nuclear power, etc., [ environmental cost ], whether to be counted in 5 gross money per degree of electricity? If the batch casting is carried out, the technique is followed The technology develops that if the thermoelectric conversion exceeds 60 percent and the service life exceeds 20 years, the power can be supplied to the power grid, and the device is universal globally.

The power generation principle is as follows: mixing butane pentane (propane for standby) and the like with lubricating oil, pumping the mixture into a heat exchanger (not reaching a high pressure level) through an integrated liquid injection pump, carrying the lubricating oil after gasification, flowing through a power generation pump, cooling, liquefying and recycling.

The key of the power generation efficiency is as follows: the vane pump (forced expansion work).

Or because in the past each family has not had two tons of hot water per day; or high-precision tip due to pricking; scientific findings of the power generation principle have not been heard so far.

The thermal power generation is originated from the project of solar heating, thermal power generation and suburban villa, the solar heating is visited once, after two sets of heating experiments are completed, a hot water power generation exploration passion comes into being, a solar cooker in the solar heating can heat 2 tons of water and contains about 140-degree electric heat energy, and when the temperature is higher than 60 or 70 ℃, if the solar cooker collects 20-60-degree electric heat energy every day, the heat energy is idle and is too wasted.

The scheme has a failure risk, but is worthy of verification, and the risk is as follows: the telescopic performance and noise of the blade, the wear resistance, the corrosion resistance of the enameled wire, the air tightness and the internal consumption are too large, and whether the parameters can be supported and maintained by the qualification party when the parameters are not matched is judged.

The invention content is as follows:

the component includes: heat exchanger, integrated liquid filling pump, power generation pump, power generator, control system, explosion-proof valve and cut-off A valve, etc.

In the power generation method, the components except the generator are required to be innovatively designed to meet actual requirements.

And selecting a generator, preferably directly purchasing, and selecting a system again. When the electricity generation is feasible and the product is upgraded, further exploration is carried out on the principles of the generator (the coil, the magnet and the magnetizer are designed on the stator).

The invention is described in connection with the accompanying drawings:

fig. 1 is a schematic design temporarily prepared for [ realizing the power generation by the conventional vane pump principle ].

In the figure, the left side is the rhinoceros-shaped scheme and the right side is the cattle-shaped scheme. All parts are surface-preserved. Two options will be described later.

In the figure, the larger the heat exchanger power is, the larger the heat exchanger size is, the heat exchanger cannot be drawn to scale, but the reading understanding is not influenced.

In the figure, the shell is a cast insulating layer, and a silencer can be arranged in the insulating layer. The ox horn can be considered to be changed into an ox ear, and audio is collected to perform leakage self-checking.

In the drawing, the modeling of the bracket needs to be designed vividly, and the bracket is hollow and is used as a standby wiring pipe. A bullseye may use an LED, even if not very practical.

The figure shows the space of change of the caster driven by the motor, which can be used for the automatic robot in the field in the future, even vehicles, if the space is realized, or the ox nose is made into a power supply jack. Although the practicability does not always reach the standard, a space is reserved for design considerations.

In the figure, the filling valve exhaust valve of the [ integral filling pump ], etc., may be provided on the back side, i.e., the side surface for maintenance operation.

FIG. 2, a block diagram illustration of the thermal power generation system:

the implementation plan, namely the right block diagram in fig. 2 is selected, namely the hot water power generation verification design is firstly made: the heat removal exchanger is arranged in a hot water tank,

except the electric control system, other components are all arranged in the cold water tank. If the verification is passed, the left block diagram is tried again, namely, the cold water tank is removed.

The left block diagram in fig. 2 corresponds to 100% thermoelectric conversion efficiency, but the generated power is not necessarily ideal and further testing is required.

In FIG. 2, all of the valve housings, adjacent to the integrated infusion pump, are integral with the infusion pump.

When 20 square meters of upgraded solar cooker (high cost performance) is used for heating 2 tons of water to 80 ℃ (the high temperature region is used for generating electricity), when the cost is low, the electricity collected at 20-70 ℃ every sunny day in four seasons is converted by 100%, and the energy is not limited to 2 tons of hot water.

If the power generation is established, the heat stored in the hot water tank can be utilized by 100% in winter, because the cooling and heat exchange are completed indoors.

When the hot water power generation verification is passed, the improvement of the hot gas power generation potential is imperative.

The difference between the hot gas power generation system and fig. 2 is in [ heat source characteristics ] and [ heat exchanger structure ].

Heat source characteristics, four examples are illustrated: 1 black louver top. 2 the focal area of the parabolic solar cooker. 3 boiler. 4, a compartment heat collector, or a box body is designed into a solar heat collector (or the box body can be folded and unfolded, or the box body can be vertically ventilated and assembled to expand the area).

The hot gas generates electricity, the highest temperature or will exceed 100 ℃, and the shape of relevant component parameters must be changed.

The heat exchanger structure: the solar cooker coke area is different from the installation spaces of the black shutter top, the boiler and the heat exchanger.

Fig. 3, [ hot gas power generation heat exchanger ],

in the figure, the heat exchange tube 1 can be a common copper tube in an air conditioner, and if the safety coefficient of hydraulic blasting is low after the heat exchange tube is bent for 180 degrees (a subsequent integrated liquid injection pump can be used for a hydraulic blasting experiment), a 180-degree elbow can be added. The outer surface is made into a blackening process or sprayed with black paint or high-temperature paint.

There is similar radiator, the design has three because of being used for hot gas power generation, improves:

first, the withstand pressure is higher. Secondly, the surface is black.

Thirdly, because the heat exchange tube 1 in fig. 3 needs to avoid welding because of pressure bearing, when the heat exchange tube 1 is clamped with the heat exchange fins 2, two cold-drawn wires 4 penetrate through one group of heat exchange fins 2, then penetrate through a sleeve (or a heat shrink tube or a gasket) 3, penetrate through the next group of heat exchange fins, and then penetrate through the sleeve 3, that is, a plurality of pairs of heat exchange fins are connected and reinforced on the heat exchange tube through the two cold-drawn wires with the spacing limited by a plurality of sleeves.

If the temperature of the hot gas power generation does not affect the service life of the heat shrink tube, the sleeve 3 is preferably the heat shrink tube.

Fig. 4, [ hot water power generation heat exchanger ] (fig. 4 will be turned upside down when installed, see fig. 1. the reverse picture is easy to read.)

And (4) corrosion prevention of the outer surface. In the figure, the lower nozzle of the tee joint 3 is an inlet, and the upper nozzle of the tee joint is an exhaust valve. The pipe at the front section of the outlet is slightly U-shaped (the U shape is not needed at the U shape). A single-action electrogenic pump (see figure 9) or a rhinoceros-shaped feature, without the need of an explosion-proof filter rectifier 2.

When the mixed liquid power generation working medium is pumped into the heat exchanger, is heated and gasified, and then wraps up lubricating oil, and the lubricating oil passes through the explosion-proof filter rectifier (mainly used for uniformly distributing the lubricating oil of the double-acting vane pump) from high to low to enter the subsequent power generation pump to drive the power generation pump to rotate.

Fig. 4 is a schematic view of the heat exchanger when all the parts are placed in the hot water tank, and in fact, when the cold water tank is separated, the positions of the inlet and the outlet need to be adjusted to the outermost circle, and the position of the inlet and the outlet is placed in the center, so that the installation and maintenance operation is not facilitated.

Power of the heat exchanger: 1000w-10kw or even more.

An explosion-proof valve at the inlet of the heat exchanger is arranged in front of the inlet of the tee joint 3, and a filter rectifier is added at the outlet end, which is shown in figure 5.

FIG. 5, the explosion-proof valve and the explosion-proof filtering rectifier,

in fig. 5, the left side is an explosion-proof valve, and the right side is an explosion-proof filtering rectifier (the horizontal installation angle is adjustable).

Description of the principle of the explosion-proof valve: when the heat exchanger and the corresponding pipe 1 burst and are communicated with the atmospheric pressure, the beads 2 rapidly rush through the arc reed 3 and reach the right through hole of the explosion-proof valve core 4, and the leakage speed of the power generation working medium is restrained.

The rectification aims to ensure that the lubricating oil which is blown by airflow with different flow velocities and then generates lateral rotation inclination in the spiral pipe is restored to be horizontal, so that the lubricating oil is divided equally from left to right, and the lubricating supply and the stress of the double-acting power generation pump are balanced.

The explosion-proof principle in the explosion-proof filtering rectifier is the same as above, and the rectifying filtering and the lubricating oil are uniformly distributed, so that the arc reed is horizontally inverted, and in order to ensure the radial level of the arc reed and reduce the torrent rotation of the lubricating oil surface in the pipe, an external thread at the position A and the explosion-proof valve core are provided with positioning pins. If the airflow triggers whistle through the arc reed in the explosion-proof valve, the material of the reed needs to be replaced.

If the noise cannot be solved here, the one-way explosion-proof valve element 7 in fig. 6.1 can be considered.

The system is a fully sealed cycle, and similar designs of the sealing rings 5 are arranged at all the interfaces.

The lubricating oil is evenly distributed left and right through a filter screen 7 in the filter rectification shell 6, so that the symmetrical vane power generation pump works in a balanced mode.

The filter screen 7 can be closed when in maintenance, two manual shut-off

valves

4 and 10 in the integrated liquid injection pump in the figure 6 can be closed, the filter screen 7 can be taken out, and oil stains can be cleaned. But the anti-explosion valve is forbidden to be tested (a screw cap and a jackscrew corresponding to the disassembly and assembly of the filter screen), and the removal of the jackscrew in the screw cap under the pressure is unsafe.

Fig. 6, [ integral filling pump ] (for high pressure to do flaw detection, this part intention probably appeared earlier, but not combined with the electricity generation), in the electricity generation, [ integral filling pump ] (pressure boost, pressure-bearing, sealed, oil extraction, exhaust, notes liquid, stirring, explosion-proof, prevent down, dilatation, shutoff) function need to possess to reveal the self-checking, explain respectively below:

the integrated liquid injection pump can be used for pressurizing by a gear pump or a vane pump. A gear pump is selected in the figure.

And (3) integration description: the cross section profile of the shell can be polygonal or circular, the liquid injection pump is embedded into the bottom of the inner cavity of the shell, a plurality of deep blind holes are processed to be used as preset pipes, and a plurality of valves or electric control valves or pipe interfaces are arranged on the periphery of the shell and can be processed through the preset pipes. Fig. 6 shows that [ cuboid (standing) + blind hole in inner cavity +4 preset tubes ] is selected in combination with the power generation.

The reason for the integrated design is two:

first, pressure design requires no weak point in the shell wall thickness pipeline, and the valve and pipe interface also need pressure seal design.

Second, high pressure valve trains are expensive. On the basis of the preset pipe, the design is flexible, the processing is simple, and the cost performance is optimal.

In the top view, [ sludge zone 5 ] can prolong the service life of the system: corresponds to the space generated after the circular local excision of the upper end cover 1 of the gear pump. The end cover is provided with 4 fixing holes, 1 driving shaft hole, 1 liquid input hole and 2 bearing seats. In the figure, the gear pump input port 2 can be used for adding a section of perforated pipe and hooping a plurality of layers of filter screens after tapping, namely, the height of the inlet is increased, so that the oil sludge is precipitated in an oil sludge area.

[ motor chamber 11 ], the motor is fixed at the inner chamber top, and fixed mode needs because of the reality should according to the motor model selection, and the outer end cover of motor can be sealed with the casing up end and fasten. The motor wire is sealed on the outer end cover of the motor and led out, and the sealing method comprises the following steps: and a layer of cover is added below the end cover, the two cover wire holes are staggered, and sealing curing glue is filled between the two covers.

And the power generation, wherein the motor power is temporarily 60-100W, and after the size of the motor is determined, the installation mode of the motor and the sealing cover are determined.

Preventing falling: preferably the integral band is attached to the peripheral stabilizing object. Drilling blind holes for tapping and fixing the strip steel to prevent falling, and the preset pipe and the inner cavity need to be avoided.

Capacity expansion description: the power generation needs a certain amount of mixed working medium, and when the capacity of the inner cavity of the liquid injection pump is relatively insufficient, the volume can be expanded through the cooler (or the additional coil pipe), so that the integrated liquid injection pump can continuously supply the mixed working medium to the heat exchanger.

Description of oil extraction: in a section view of b-b, the oil discharge port 16 is communicated with a gear pump high-pressure cavity and a high-pressure output preset pipe (namely the preset pipe where the outlet manual shut-off explosion-proof valve 4 is positioned in a top view), and the oil discharge port 16 is used for reducing the mixing proportion of the lubricating oil in the power generation working medium. The oil discharge nozzle can be provided with a shallow narrow groove at the screw section of the sealing plug screw, and can slowly leak when being screwed out by a half.

Description of exhaust gas: in the section view of b-b, the pressure-limiting and flow-limiting exhaust valve 8 is used for adjusting the proportion of butane and pentane, etc., the oil is discharged according to the principle, and the oil is blocked by a sealing plug (see figure 6.1 and mark 1) at ordinary times. (air venting is illustrated in figure 4).

When butane is discharged, the gas is ignited under ventilation (namely, the gas stove interface is designed).

(Note: lubricating oil, denser than liquid butane pentane, gaseous butane pentane, denser than air.)

And (3) leakage detection: bubble sound detection is preferred in the water tank, and butane concentration detection may not be practical.

The sound detection, slight leakage should shake with sound such as stereo set, make frequency differentiation, the sensor should be installed in the horn mouth (or utilize two ox ears), collects directional sound wave. The voice control lamp is inexpensive, and the voice control sensor is also inexpensive.

Description of injection: because the pump case is totally sealed, thick organic glass is used as an observation window, the pump case is suitable for experimental observation after the working pressure is measured, and is not suitable for civil products. Therefore, the float 14 is added, and when the liquid level reaches, the float pulls the beads in the [ filling port + bead valve 6 ], so as to block the filling channel. When the injection is not needed, a sealing plug is used for plugging (an injection port and a bead valve 6).

Stirring function: because the power generation working medium is mixed liquid, the power generation working medium can be layered when standing and needs to be stirred. Only the metal strip sheet is fixed on a screw shaft (between two couplings) and is screwed into a propeller, namely a stirring paddle 15.

Manual shut-off function: the anti-explosion valve comprises an outlet manual cut-off anti-explosion valve 4 and a return opening manual cut-off anti-explosion valve 10, which are shown in figure 6.1, and the design of a valve core is illustrated by way of example. In fig. 6.1, only the sealing plug 1 has a complete shutoff function. In fig. 6.1, 1, the plug is sealed. And 2, manually and explosively shutting off the valve core at the outlet. And 3, returning to the manual explosion-proof shutoff valve core. And 4, normally and manually turning off the valve core. 5, the shutoff valve core can be discharged. And 6, inverting the return opening and manually switching off the valve core in an explosion-proof way. And 7, a one-way explosion-proof valve core. And 8, a spill valve core.

The explosion-proof function: when the system detects that the heat exchanger bursts and leaks, or detects that the current of the motor of the liquid injection pump is suddenly increased, the power supply of the liquid injection pump is stopped immediately, or the power supply is buffered by an overflow valve (see a mark 8 in figure 6.1), or a sealed plunger and a pressure spring are arranged in a preset pipe where an explosion-proof cavity buffer 3 is communicated with an explosion-proof buffer channel 7 and the gear pump outputs at high pressure to serve as cavity buffer.

The explosion-proof defect of reed: when the heat exchange tube bursts and the inlet and outlet shutoff valve is closed, the reed is explosion-proof and cannot be automatically reset. At this time, or if the normal use is not available, the gas-releasing combustion is needed, and the gas-releasing combustion can be considered [ 3 in fig. 6.1 ].

When the temperature of the water tank where the integrated liquid injection pump is located is too low, the air pressure in the cavity is too low, and the beads are probably difficult to jack up after the heat exchanger bursts, so the beads are probably not suitable to be selected by steel balls or aluminum conical sheets.

After similar fault protection design is arranged, the design is firstly verified (high-efficiency and high-power generation is achieved). If can not finish high The power generation, the product key is not over, the security design is perfect, and the method has no meaning, so long as some efforts are made, the experiment is ensured And (5) the method is safe.

Other descriptions: an outlet 13 (the position in the figure is lower) is connected with a short pipe, the other end of the short pipe is provided with an explosion-proof valve, and then the other end of the short pipe is connected with the input of a heat exchanger (a tee joint 3 in the figure 4). [ COUPLING 12 ] is connected with a screw shaft. Gear pump or vane pump 17 is the first choice. The beads (18) act as thrust bearings. [ RETURN OUTLET 9 ] is connected with a cooler (if the expansion is carried out by adding a coil pipe, the pipe orifice can be adjusted to be higher, otherwise, the pipe orifice needs to be adjusted to be lower).

The integrated liquid filling pump can also be used as an integrated booster pump which can be flexibly applied, and the capacity can be increased by an external pipeline. The pressure self-checking device can be used in a laboratory, can be used for performing water pressure blasting detection on other equipment, is provided with a pressure gauge on a preset pipe, and can independently complete pressure self-checking. Can be driven by hydraulic pressure. Can be used for multi-path high-pressure automatic supply. Because the housing is provided with a plurality of pre-positioned tubes, it can be reprocessed for use as a tube interface or for various high and low pressure valve designs, and the valve core, such as a tube bead spring screw nut, is a common and inexpensive material.

The casualties caused by the explosion of the pressure tank are many, and according to the information on the network, the water pressure explosion experiment of the thin-wall copper pipe with the diameter of 9.52 used for the air conditioner is more than 10 MPa. The design pressure of the gas tank is 1.8 MPa, and the wall thickness is about 2.5 mm.

The power generation working medium of the system is combustible and explosive, and has the defects that the pipeline is damaged by collision and the explosion and fall prevention treatment is needed.

The integrated liquid injection pump predicts that the hydraulic pressure explosion will exceed 20 MPa, and inevitably meets the safety condition of medium and low pressure design.

Description of the electric Power Pump: (note: the subsequent centrifugal force of the blades and the oil absorption of the root cavities of the blades are not accurate in expression but are not misunderstood.) the conventional vane pump is mostly used for liquid pressurization. Used as a power generation pump, i did not find it.

That is, the use of a vane pump as a power generation pump requires new consideration and design of numerous details within the pump.

The generating pump adopts the principle of a single-action vane pump and a double-action vane pump, is named as the single-action generating pump and the double-action generating pump respectively, and can be verified or can appear as the low-speed annular vane type generating pump.

FIG. 7: a rhinoceros-shaped electric generating pump is provided, and the positions of components are schematic.

1, inputting rhinoceros shape. 2 end cover valve plate. And 3, generating pump cavity. 4, a middle port plate. 5, a generator cavity.

And 6, a rear end cover. 7, cable pipes. And 8, outputting. And 9, an adjustable bracket. And 10, preventing the strip steel from falling.

In fig. 7, the adjustable support 9 can be adjusted and buffered by the elastic damping caster to prevent precession and reduce noise.

The bovine shape differs from the rhinoceros shape: the input position changes, and the explosion-proof rectification of entry and the part that flow equalizes change. The same as the above.

FIG. 8: [ rhinoceros-shaped double-acting electric generating pump ] three-dimensional schematic diagram:

the figure 8 design has the drawback: the blade is many, and the internal consumption is big. Here, the design concept can be explained as follows:

two rotor plugs 4 are connected with a hollow rotor 2 through a pin key 3 in the figure, so that the disassembly and the assembly are convenient for test.

The pin key 3 is removed during production, and the rotor plug, the rotor and the hollow shaft are welded into a whole by argon arc welding and the like.

Two pressure regulating rings 11 in the figure are fixed on an end cover valve plate 10 and a middle valve plate 13 in a mirror mode through positioning pins and screws, and during a test, the pressure regulating ring pressure increasing blocking angle is adjusted, and the oil absorption of a blade root cavity can be adjusted.

In the figure, a < rhinoceros shaped pump shell 1 > is hermetically connected with a < end cover valve plate 10 > and a < middle valve plate 13 > through a < sealing ring 14 >. The shell wall of the pump shell is provided with an access hole: two inlet holes are blind holes, and four outlet holes are through holes (two of the inlet holes are standby outlet holes of a test product, and only 2 outlet holes are reserved when the test product is not used and is plugged by a bar stock when the test product is produced).

The inlet hole is a deep blind hole, and a sealing ring is arranged between the inlet hole and the end cover valve plate (the inner diameter of the sealing ring is slightly larger than the aperture of the inlet hole).

The access holes are subdivided into a plurality of small holes with the diameter less than 2mm and communicated with the blade input cavity and the blade output cavity.

Penetrate [ the inlet hole flow equalizing screw 8 ] into the inlet hole. An outlet hole shunting rod 9 is inserted into the outlet hole.

The design of the fluid route of the system is combined with the design of (slotting on the end surface of the pump shell, arranging a shunt rod in an upper hole on the shell wall of the pump shell, arranging a hollow shaft, slotting or through holes of a valve plate, or layering an embedded boss of the valve plate) and the like, and can be flexible and changeable.

And (4) entering holes for flow equalization purpose: the input cavity (corresponding to the cavity 1 in fig. 9 and 10) can quickly generate a complete oil film, so that the stress of the blade is balanced. If the flow equalizing effect is poor, the thread pitch can be gradually changed and the groove can be axially milled or milled flatly. If the flow equalization is not needed, the flow equalization screw is removed.

The purpose of the outlet diversion is as follows: the output gas and liquid are separated through an end cover valve plate 10 and a hollow shaft 6 to supplement liquid for a hollow rotor 2, the lubricating oil deflects to the hollow outer diameter during rotation due to the slightly larger specific gravity of the lubricating oil, the mixed liquid supplements mixed liquid to a ring groove on the outer side of a rotor plug 4 through a through hole on the rotor plug (the proportion of the lubricating oil is higher at the moment), and the mixed liquid is used as an input supplement source for a booster pump formed by combining a pressure regulating ring 11 and a blade root cavity.

[ voltage regulating ring 11 ] has the following functions: ensure that the high pressure cavity blade can push the pump shell tightly. The double-acting power generation pump is provided with 4 gears on a voltage regulating ring, and two (initial gears) can be machined on a valve plate in a preferred test scheme.

The filter screen 7 (a three-dimensional section is made in the figure) is arranged in the hollow part of the hollow rotor 2, so that the sponge effect is achieved, and liquid can be supplied to the oil absorption area on the upper half part of the pressure regulating ring during low-speed power generation.

The purpose of the baffle ring (5) is to reduce the liquid flowing through the baffle ring from entering a generator cavity.

The hollow shaft 6 is used for gas-liquid separation and providing lubricating oil for the bearing, and a wave-shaped elastic cushion can be added on the outer side of the outer ring of the bearing.

An outlet 12 is arranged below the middle port plate, a blind hole (shown as a mark 10 in figure 9) is drilled on the generator side of the middle port plate and communicated with the outlet 12, mixed liquid leaked along a shaft and mixed liquid supplied for lubricating a bearing of a generator cavity along a hollow shaft can flow back through the blind hole.

A sealing ring is additionally arranged in the sealing ring groove 14. [ Assembly locating pin 15 ] ensures the position accuracy of the port plate and the pump shell.

Fig. 8 illustrates the principles of pressure regulation by the pressure regulating ring, the fluid path of the system, and the source of the driving torque of the vane, in detail with reference to fig. 9 and 10.

The power generation pump is the design of a power generation method and contained components (success and failure key).

The key points of the key points are [ the working principle of the power generation pump ] and [ the design ideas of all the details ].

When the power generation principle and the detailed design ideas are clear, the design drawing of related parts is simple.

Such as: beads are additionally arranged at two ends of the blade, a bead track is arranged on the valve plate, and the blade is forced to stretch and retract by the guidance of the beads.

Or a boss is fixed on the port plate and is used for guiding to force the blades to extend.

Such as: in order to reduce the kinetic energy internal consumption of the blade, reduce the weight of the blade and ensure the wear resistance, the steel-aluminum combined or hollow aluminum alloy blade is selected.

In the following, the terms are defined and the simple preconditions are explained by introducing the preferred scheme (preliminary drawing):

blade root cavity: the vanes extend out of the chamber between the vane slots. A blade cavity: a cavity between the two vanes.

Vane chamber front side vane: the direction of rotation is forward, as in [ front ] of [ angle of anteversion of blade ].

Low pressure of the system: the low pressure in the integrated liquid injection pump is approximately equal to the pressure of a cooler and approximately equal to the output pressure of a power generation pump.

High pressure of the system: the output pressure of the integrated liquid injection pump is approximately equal to the gasification pressure of the heat exchanger and approximately equal to the input pressure of the power generation pump.

The voltage regulating ring is switched instantly corresponding to high voltage and low voltage, the high voltage of the voltage regulating ring is not less than the high voltage of the system, and the low voltage of the voltage regulating ring is not more than the low voltage of the system.

In fig. 9 and 10, chamber 0 is isolated from the high pressure input and low pressure output. Chamber 1 is the high pressure input (entering through a row of small holes in the inner wall of the pump housing).

The cavity 2 and the cavity 3 are used for expanding, doing work and reducing temperature. The 4 cavities and the 5 cavities are used for forcing the expansion work to continue cooling. The temperature drop is not large due to the temperature compensation of the lubricating oil.

The 6-cavity 7-cavity (8-cavity 9-cavity) is a low-temperature compression semi-liquefaction cavity, and the liquefaction temperature rise is not too high due to lubricating oil.

The pressure difference between the low pressure of the system and the ultra-low pressure of the forced expansion cavity drives the blades in the forced expansion area to push out.

When the blade outwards released, many blades stretched out simultaneously during rotation, and many blade root chamber flows have complementarity, and are many times of the generating pump input flow, correspond the pressure regulating circulation groove, will deepen and widen.

The disadvantages of high-speed rotation are more: the abrasion between the blade and the pump shell is accelerated; the vanes may be difficult to push against the pump casing (demanding on the casing curve); the internal kinetic energy consumption of the blades is increased. Therefore, the maximum speed is temporarily around 1500 rpm.

(1500 or 3000 rpm, associated with the generator pole pair number and power frequency 50 hz. 3000 rpm, blade acceleration and displacement, kinetic energy change, shell wall curve, blade internal consumption, abrasion speed, and non-ideal comprehensive estimation, see the following calculation.)

Before mechanical design, the pressure values of liquid propane, butane and pentane at 80 ℃ and 30 ℃ respectively need to be measured.

Taking the pressure measured at the temperature of 80 ℃ of butane as a high-pressure parameter design reference; and taking the air pressure value at 30 ℃ as a design reference of low-pressure parameters of the system. (butane, mixed with propane and pentane series, system low pressure and system high pressure can be adjusted.)

After confirming above-mentioned high-low pressure, the originated gear of voltage regulating ring just can calculate: because when unsaturated power generation state, the heat exchanger can fully gasify the power generation working medium, gets into the generating pump this moment, when the inflation chamber, neglect the secondary gasification back of circulating liquid, satisfy PV ═ CT and calculate the prerequisite, supposing that 80 ℃ atmospheric pressure is n times of atmospheric pressure when 30 ℃, plan for the constant temperature inflation (because there is lubricating oil to do temperature compensation), confirms that the blade rotation accomplishes n times inflation angle, and this angle is the initial gear design reference. See fig. 10-8-9 for tap positions. When the pressure of the blade cavity is lower than the low pressure of the system, the blade cavity is separated from the high pressure of the pressure regulating ring through the starting gear, and the blade cavity enters the low-pressure oil suction area.

The pressure regulating ring pressurization gear calculation is related to oil absorption setting of each blade, the oil absorption is too large, the blade root cavity pressurization power consumption can excessively occupy the power generation efficiency, abrasion and friction resistance are increased, the oil absorption is too small, and when the blade is in a cavity 1-2 of an expansion working area (see a figure 9 and a figure 10), the risk of difficult ejection exists due to the forward rake angle and the resistance of the blade.

FIG. 9: a rhinoceros-shaped single-action power generation pump is one of the first trial schemes:

the single-action power generation pump has the advantages that: less blades, less internal consumption and high antiwear performance.

Single-action electric generating pump, the shortcoming: when the rotor works under full load, the roller bearings at the two ends of the rotor are stressed radially greatly.

Because the pressure regulating ring can be sleeved on the bearing and occupies the stressed thickness of the bearing seat, the pressure regulating ring is not suitable for independent manufacture in the experimental design of the single-action power generation pump and needs to be integrally processed with the thrust plate.

If the power generation verification is feasible, the single-action power generation pump can be divided into two parts, and the generator is clamped in the middle, namely two middle distribution plates are arranged. And 4 roller bearings are used for sharing the radial pressure of the bearing under the condition of ensuring the coaxial precision. (the design will deviate from the scheme in figure 1 at this time.)

Namely, the single-action electric generating pump, the pressure regulating ring and the valve plate are integrally processed, cannot be adjusted and need to calculate positions. The pressure regulating ring initial stop 14 slightly exceeds the angle of forced expansion work done calculated in the foregoing. And the pressure regulating ring pressurizing baffle 17 is positioned at the set oil absorption position.

When the power generation is feasible, if the pump shell inner wall 1 is not wear-resistant, the pump shell inner wall can be made into wear-resistant parts which are easy to replace.

And the sealing ring groove 2 is respectively arranged on the power generation pump shell and the valve plate, the groove is slightly chamfered, the section of the sealing ring is deformed and filled in the groove after the sealing ring is tightly installed, and the redundant volume of the sealing ring is filled in the chamfered part. In the test period, the sealing performance of whether the flexible glue is coated in the sealing groove or not can be compared.

And the pin key 3 is used for connecting the hollow rotor and the rotor plug, and is removed after the hollow shaft and the filter screen are rotationally matched during production, the hollow rotor and the rotor plug are fully welded by argon arc welding and the like, and then the hollow rotor and the rotor plug are processed.

The output hole of the valve plate is 4.1, the output hole of the pump shell is added with a flow dividing rod 4.2, and the two are selected from one. When the output hole is close to the boundary of the last cavity 8 and the cavity 0, more gaseous state is compressed and liquefied in the pump, when the output hole is far away from the boundary of the cavity 8 and the cavity 0, the liquefied amount in the pump is reduced, and residual gas is thoroughly evaporated in the coolerBottom liquefaction.When the output hole is far from the boundary, the blade elongation is larger at the moment of switching on low pressure, and the resisting moment is not necessary And decreases. It is therefore preferred to be close to the boundary and to be well away from the boundary if the liquefaction temperature or pressure is measured at this point too high.

The angle reaming adjustment of fig. 9-4.1-4.2 and fig. 10-2.1-2.2 relates to the output instantaneous blade cavity pressure and the system low pressure switching noise, the liquefaction effect in the pump, the output gas temperature and the driving resultant moment, and a preset hole is left during processing, so that the test comparison rhythm can be accelerated.

An inclined through hole 5 on the valve plate is communicated with a valve plate output hole 4.1 or a flow dividing rod 4.2 added on the output hole on the pump shell, a valve plate bearing seat and a hollow shaft. The two ends of the through hole are blocked by screw plugs or connected with a pressure gauge.

[ pressure-limiting groove 6 ] should be shallow and not deep, so that the oil absorption of the pressure-regulating ring is slightly large, and the high-pressure area of the pressure-regulating ring is slightly higher than the input high-pressure area And (4) pressure value.

[ locating pin 7 ] is used for the single-acting vane pump, and the rotor is stressed in a single direction, so that the locating pin is thickened.

[ blind hole 8 in pump casing ], here does not need to be made into the through-hole. The sealing ring is added only by communicating the inlet hole of the end cover valve plate, namely [ end cover valve plate rhinoceros angle input and pump case blind hole sealing ring 11 ].

The outlet 9 of the middle port plate is communicated with the return hole 10 of the generator cavity of the middle port plate.

[ hollow rotor inner filter screen 12 ] is for carrying lubricating oil, plays the sponge effect. The oil suction area of the upper pressure regulating ring is supplied with liquid state, and the oil-free supply can press (seemingly suck) gas into the blade root cavity, so that the pressure regulating ring is invalid.

A hollow rotor outer side blocking ring groove 13, a through hole 15 on the hollow rotor outer side blocking ring groove, a communicating groove 16 on a pressure regulating ring, an oil suction area of the pressure regulating ring, a hollow rotor hollow and a hollow shaft hollow are communicated.

[ pressure regulating ring is originated to be kept off 14 ] and [ pressure regulating ring pressure boost fender 17 ] will 360 divide into two, be less than the interval of 180 degrees for pressure regulating ring oil absorption district, oil absorption is the flexible difference of blade at two gears, pressure regulating ring oil absorption district intercommunication hollow shaft (see the section description), and then communicate the integration charge pump, promptly, oil absorption district pressure is approximately equal to the system low pressure value. The section of more than 180 degrees is a pressurizing area which is communicated with high-pressure input through a pressure limiting groove 6.

Voltage regulating ring, voltage regulating principle explains: the two pressure regulating rings are fixed on the valve plates at the two ends in a mirror image manner and are relatively static. The blade elongation corresponding to the pressure-regulating ring pressure-increasing gear position is greater than the blade elongation at the initial gear position, so that two gears form an oil-absorbing interval, the interval is a forced expansion work-doing interval, the pressure of a blade cavity is less than the low pressure of a system, the pressure of a blade root cavity is approximately equal to the low pressure of the system, and the pressure difference of the two cavities forms pressure oil (seemingly absorbing oil). (for example, let the blade be 3mm thick and 100mm long, i.e. 3cm of pressure bearing surface²When the pressure difference is 1 kilogram per square centimeter, the pressure difference applied to the blade is 3 kilograms. 1500 revolutions per minute, when selecting aluminium blade, under the effect of blade anteversion angle, the relative pressure difference of blade radial centrifugal force is very little, needs the pressure that comes from the blade root chamber to outside to push out the blade. )

When the blades rotate over the pressurizing baffle, the liquid in the root cavities of the blades is pressed, if the blade grooves absolutely have no leakage, the pressed liquid can only push the related blades to extend outwards, and the redundant amount (oil absorption) is leaked to the pressure limiting grooves 6. The blade groove leaks inevitably, the flow of the pressure limiting groove and the leakage of the blade groove form the power consumption of the booster pump corresponding to the root cavity of the blade, and the power consumption occupies the thermoelectric conversion efficiency and is in direct proportion to the oil absorption.

Electric generating pump, blade drive torque specification: the expansion chamber, and the forcing expansion chamber, are necessarily the external output driving force.

Sensibly, the inflation lumen is forced, requiring inflation lumen actuation. In fact, assuming that the compression zone behind the expansion chamber is forced to a vacuum, rather than forcing the expansion, the expansion does work. Therefore, [ forced expansion ] is defined relative to the non-vacuum of the compression zone. However, forcing expansion and compression to cancel each other according to the ideal gaseous equation PV ═ CT, [ expansion work ] and [ work required for compression ], and there is no output driving force? In fact, here PV — CT fails: because the gas in the blade cavity is easy to liquefy due to low temperature and low energy after the expansion is forced to do work, the gas is forced to be liquefied after the expansionAnd immediately compressing and liquefying, wherein the liquefied gas no longer meets the fixed amount of gas on the premise of an ideal gas equation.Note that: the compression liquefaction is performed for warming, the warming amount is not large, and the temperature of the lubricating oil is compensated because the temperature starting point is low And (6) compensating.

However, the pressure is still low after the temperature is raised by compression liquefaction. The input chamber is heated to a high pressure after gasification. I.e., the driving torque of the expansion section, will be greater than the resisting torque of the compression section. This is the key i think of being able to drive rotation. The key of the power generation efficiency is internal consumption, which is the amount of forcing expansion to do work and ensures that the liquefaction temperature rise is not high, namely, whether the energy of the part of liquefaction and heat dissipation can pass through the energy of the part of liquefaction and heat dissipation, the expansion work is forced to do drive power generation first? That is, the nature of [ force expansion work ], can be said to be true at all? When the temperature of hot water is reduced and 10 degrees of electric heat energy is consumed, if the electric heat energy is converted to more than 2 degrees of electricity, the fact that the expansion work is forced is established. Since 1kg of butane has a heat of liquefaction about 200 times the gaseous temperature rise of 1 degree. That is, with this principle, thermal power generation, liquefaction heat dissipation is the key. The temperature is set from 30 ℃ to 80 ℃, and the absorbed heat energy is 50/250-20% due to the gaseous temperature rise. That is, if the liquefied heat can not be converted into electric energy, the hot water consumes 10 degrees of heat energy and can only output 2 degrees of electricity at most under the ideal effect of no internal consumption. The following are estimated:

hydrothermal capacity 4200, (4200x1000)/(3600x1000) is 1.17 degrees electric. That is, 1 ton of water is heated by 1 degree until 1.17 degree of electricity is consumed. Namely, two tons of hot water consume 10 ℃ of electric heating energy, and the temperature drop is less than 5 ℃.

That is, when the temperature of 2 tons of hot water is reduced from 80 ℃ to 75 ℃ in a state that the heat dissipation of the heat-insulating layer is neglected, the electric heat energy of 11.7 ℃ is released. If the power generation exceeds 20% (namely 2.34 degrees), the expansion is forced to do work to generate power, and the method is effective. The expansion multiple of the power generation pump is designed to be more than 40 times (the expansion multiple is occupied by adding secondary cycle gasification in calculation), the temperature of gas in the cavity is reduced by more than 200 or 300 ℃ due to the heat energy corresponding to expansion work, and the temperature is reduced to minus 20 ℃ from 80 ℃ under the condition that the temperature is reduced by 100 ℃ under the temperature compensation of the secondary cycle and the pressure regulating ring, the blade groove is leaked and the lubricating oil is supplemented. While butane has a boiling point of-0.5 ℃. The boiling point of n-pentane is 36 ℃.

In effect, some of the heat energy extracted by the forced expansion work comes from the heated lubricant oil.

The part of thermoelectric conversion is completed by the temperature compensation combination of the power generation working medium and the lubricating oil, and does not belong to the heat energy absorbed by the power generation working medium in the heat exchanger. When the proportion of the lubricating oil is 50 percent, the heat absorption of the lubricating oil is about 20 percent relative to the liquefaction heat. Therefore, the proportion of the lubricating oil of the integrated liquid injection pump is adjustable. However, the proportion of the lubricating oil is too high, and the power consumption of the motor of the integrated booster pump is increased.

In the test period, various parameters are adjusted and tested to avoid negligence as much as possible, and the records are clear and correct, which can lead people to fatigue, so that the excitement can be caused only by breaking through 30 percent of thermoelectric conversion efficiency in the first test, and the persistent intention, namely the importance of first fighting and quickness, is ensured. If the blood is passed and then goes bad, the confidence is easy to be broken.

Therefore, the dilemma of diligence, the keen ability to seek the source and the flexibility of changing the idea are needed,

therefore, the method is welcomed for strict error correction, professional modeling calculation and extensive thinking, and positive suggestions are provided.

The lubricating oil proportion, the high pressure and the low pressure after the propane, butane and pentane proportion, the pressure regulating and gear testing and calculating, the blade groove clearance, the abrasion and the comprehensive matching of all parameters all influence the power generation efficiency, and the relevant modeling calculation is not satisfactory for some people.

The power generation system, [ fluid route ] throughout the description:

fluid is pumped into a heat exchanger by an integrated liquid injection pump to be heated and gasified, flows through a rhinoceros horn or a cattle shoulder pipe (the rhinoceros horn or the cattle shoulder pipe is an explosion-proof filtering rectifier), is pumped into a hole by a power generation pump to be uniformly and finely divided, enters a cavity of the power generation pump 1 to rotate along with blades, is expanded to apply work, then is forced to apply work, then is compressed and liquefied,through the output holes or output channels of the port plates on both sides (or through the inner wall of the shell) The holes are arranged and are divided by the flow dividing rods in the output holes) and divided into two paths (the double-acting power generation pump is divided into 4 paths), and one path is divided into two pathsEnters the outlet of the middle port plate, at least half of the flow enters the hollow shaft through the bearing seat on the end cover port plate for gas-liquid separation,at this time, there is a small amount The liquid flows through the hollow rotor, through the through hole on the rotor plug, through the annular groove on the outer side of the rotor plug, through the pressure regulating ring, enters the root cavity of the blade and is recycled And (4) a ring.More fluid flows to the outlet along the hollow shaft, when the fluid flows through the middle port plate, a small amount of gas and liquid (blades in the hollow shaft can increase the flow to cool the generator) flows through a bearing seat of a rear end cover (shown in figures 7-6) of the generator along the hollow shaft, flows through the bottom of a generator cavity, flows through a return hole (shown in figures 9-10) of a motor cavity of the middle port plate, is converged and flows through the outlet, flows through the cooler and returns to the integrated liquid injection pump.

FIG. 10: the second trial production scheme of the rhinoceros-shaped double-acting electric generating pump is as follows:

the double-acting electric generating pump has the advantages that: the stress is balanced. The disadvantages are as follows: the number of the blades is large.

According to the marks on the figure, the description is as follows:

if the power generation pump shell inner wall is not wear-resistant, the power generation is feasible, or the power generation pump shell inner wall is an easily-replaceable wear-resistant layer part independently.

(2.1) an output hole on the valve plate (2.2), and a flow dividing rod is added to the output hole on the pump shell.

(3) an inclined through hole on the valve plate communicates the output with the hollow shaft of the bearing seat, and both ends of the through hole are screwed plugs or connected with a pressure gauge.

[ 4 ] the assembly precision is ensured by a positioning pin.

And (5) inputting and communicating a blind hole on the end cover valve plate, and plugging the hole end by using a sealing plug after a filter screen is added into the blind hole. The function is the same as the filtering, rectifying and shunting in the explosion-proof filtering rectifier.

The (7) hollow rotor inner filter screen is arranged in the (6) hollow rotor.

(8, pressure regulating ring initial stop),during the test, two initial baffles and the valve plate are integrally processed.

[ 9 ] pressure regulating ring pressurization keeps off, during productization, pressure regulating ring and valve plate integrated processing.

(10) an outlet of the middle port plate, which is also a main outlet of the power generation pump.

[ 11 ] on the middle port plate, the oil return hole of the generator cavity.

[ 12, on the middle valve plate, stall bleeder valve ], double-acting generating pump stall back, liquid can be accumulated to the pump case bottom in the pump, if not let out, can lead to when starting next time, downside chamber resistance is too big. Therefore, by using the characteristic of the forced expansion zone (vane cavity < low pressure), the beads are horizontally arranged and communicated (10, outlet on the middle port plate) to lead the oil and the like out automatically. (lower limit 12 in the figure, lower than the inner wall of the shell).

[ 13 ] seal ring groove. (14, hollow rotor outer side through hole ring groove).

[ 15 ] the pressure-limiting groove on the port plate should be shallow and not deep. [ 16 ] Pump case blind hole seal. [ 17, cotter ].

[ 18 ] rhinoceros horn input, and an explosion-proof valve is arranged in the rhinoceros horn. [ 19 ] screw counter bores are fixed on the pressure regulating ring.

The electric generating pump has the following advantages that the principle and the defects of components are discussed:

1, wear resistance: the key is 1 chamber (1 chamber determines the expansion multiple corresponding to the input quantity), because the pressure limiting groove has communicated 1 chamber and blade root chamber high-pressure area, make the radial pressure difference of blade little, namely, 1 chamber blade is tight the power of pump case less, and each chamber lubricating oil is sufficient, namely, when the low-speed operation, 1 chamber wearing and tearing speed is slow, input chamber volume precision is relatively stable.

By controlling the wear resistance, maintenance costs and product life are controlled.

And 2, the electric generating pump has liquid working medium circulation and secondary gasification to occupy space, so that the expansion work is reduced, the liquefied heat dissipation capacity is increased, and the thermoelectric conversion efficiency is reduced. Containment protocols such as: wear is suppressed at low speed;

or the proportion of the lubricating oil thrown out after gas-liquid separation is enhanced by using a plurality of layers of hollow shaft inner filter screens;or the clearance between the rotor and the shell in the front half section of the 0 area is minimized, and the clearance in the rear half section is gradually increased to about 0.2, wherein the clearance is used for smooth input; or the oil absorption of the pressure regulating baffle is reduced, namely the flow of the pressure limiting groove is reduced.The pressure limiting groove influences expansion multiple, limits the high pressure value of the pressure regulating ring, and can make the wear of the 0 cavity and the 1 cavity casing slowest.The shell wall is continuously processed to increase the 1-cavity arc outer deflection angle, so that the kinetic moment can be increased. When the blade cavity is communicated with the backflow, the more the blade stretches outLarge, the greater the resistance. In the case of the drawback 2, the practice of comparing the quality and the quality, the profits and the refinement, the various processing verification of the related changes, the time consumption and the labor consumption are required.

The inlet position of the power generation pump is as follows: most preferably rhinoceros. When the design power is increased and the power generation pump shell is lengthened, the ox-shaped scheme can be returned.

The electric pump input is to ensure the high-pressure air tightness of the 1-cavity and the 2-cavity, and the oil film is critical at the position, so the bovine input is selected at the beginning.

The outlet position of the power generation pump is related to the flow direction of the lubricating oil, and the mechanical detail design is determined. Fig. 9 and 10 show two preferred solutions, in which the outlet is arranged at the lower end face of the intermediate port plate. Earlier design thought was to place it under the cow-shaped entrance.

Temperature and barometric physical properties of butane: the following table is derived from a color map, and the data is inaccurate and is for reference only.

Pressure unit: kilograms per square centimeter.

-0.5℃	0℃	10℃	20℃	30℃	40℃	50℃	60℃
								0	0.3	0.7	1.2	1.8	2.5	3.5	5.5

The parameter setting in the subsequent modeling calculation is an assumption made based on the physical property curve corresponding to the above table.

The physical property curve of the mixed gas needs self-experiment and cannot be aided by related professional design manuals.

The power generation working medium proportion: the mixing proportion of propane, butane, n-pentane/isopentane/neopentane, lubricating oil, and the like relates to the low pressure and the power generation performance of a system high-pressure system of the power generation principle; whether the related proportion tempering has organic chemical reaction influence on stable performance under the long-term action of an electromagnetic field; and the operating temperature of the lubricating oil, all correspond to risks.

Description of the alternative scheme:

originally thought of as a [ cone turbine or straight turbine engine ], the steam turbine was investigated later, and the idea is consistent, namely, the rotor is driven by differential pressure airflow, and the momentum direction of the airflow is reset by the stator turbine for a plurality of times: that is a major axis that has a plurality of shaft keys, the corresponding position of shaft key installation drive turbine rotor, is the reverse turbine stator between the shaft key, and the rotor stator assembles layer by layer, [ the integration outer lane of stator ] and [ casing sleeve ] are fixed through the jackscrew. The turbine principle of a steam turbine does not force expansion to do work and it is intended that the description herein is not hindered by later related patents. The innovative thinking is unexpected, so that even though the performance is considered to be poor in principle and dare not to be denied easily, the novel method is all possible and never thought.

Regarding the generator, in the existing brushless theory, the permanent magnet and the winding are arranged on the stator, the rotor only guides the magnetic flux to change, and the magnet is probably embedded into the rotor, so that the power generation efficiency is more favorable, and the change intensity of the magnetic field is increased.

Low-speed annular blade type electricity generating pump: the generation is verified to be feasible, or a circular solution is explored.

[ bead targeting ] in the alternative: and (4) adding beads at the root of the blade, and processing a bead track on the port plate.

Bead-directed defect analysis: although the roots and the tips of the two sides of the blade are both provided with sufficient lubricating oil, the blade is an elliptical track, the track slides with beads and is easy to wear and break, and broken residues slide through the small input and output holes in the blade, so that the clamping of a shell is easy to cause, the blade and the input and output holes are damaged, and the gear engagement fault is also caused when the broken residues enter the liquid injection pump. That is, the requirement for periodic maintenance during bead guidance is increased.

Guiding a boss: the oval boss is fixed on the valve plate, the oval boss slides to the guide angle of the pair, the outline of the blade is in a convex shape, the protruding parts at the two ends of the blade are trapezoidal guide round angles, and the trapezoidal guide round angles and the guide angle of the boss form a sliding pair. The elliptical boss is contacted with the end face of the hollow rotor.

Boss guide defect: 1, the boss and the blade are mutually worn. 2, the liquid circulation secondary liquefaction is serious.

Flexible elliptic cone sliding or rolling bearing: the flexible butterfly-shaped elastic sheets are stacked layer by layer, and the service life is not necessarily long.

Description of the calculation: the key points of the mathematical model are power calculation, temperature drop calculation, internal consumption calculation and cost performance calculation:

calculating the internal loss of the blade: when 3000 revolutions per minute, the transfer of momentum conservation kinetic energy is ignored, the radial kinetic energy of the blade corresponds to power,

the calculation is as follows: the weight of the blades is 50g and the number of the blades is 36, the stretching amount is 12mm, the front 6mm is uniformly accelerated, and the rear 6mm is uniformly decelerated. Then, s is 0.5vt, and the maximum speed v is 2s/t, 12x50x8/1000, 4.8m/s

Maximum radial kinetic energy of the blade: 0.5x50x speed²And 0.576J in total of 36 pieces, and the total is about 20.7J. Each revolution is accelerated 4 times and decelerated 4 times, so that the multiplied value is 166J. 50 revolutions per second, multiplied by 50, about 8.3 Kw.

The power consumption is large but can be sharply reduced, and the heat energy generated by the internal consumption returns to the power generation efficiency through temperature compensation.

Because the conservation of momentum kinetic energy transfer between blades is not ideal, it will be one of the research and development focuses.That is, the more the number of blades, the better, the weight and thickness of the blades and the maximum rotation speed are all considered comprehensively.

Such as: controlling the maximum rotation speed to be about 1500 revolutions, such as: hollow aluminum blade? Iron-aluminum in combination, aluminum and iron have different thermal expansion coefficients, and therefore the resulting gap affects the air tightness?

When the single-acting vane pump has 9 vanes, the rotation speed is halved, the above value becomes 500w, the mass is halved again to become 250w, the momentum conservation kinetic energy transfer is calculated, and the internal consumption or energy of the vanes is lower than 150w at the maximum power output.

Daily household power consumption: lighting about dozens of watts and cooking about 2-4 kilowatts (cooking directly with hot water in advance, institute) Power requirement of 2-3kw), so the ideal product design can meet the instantaneous change of (from tens of watts to 5 kilowatts or 10 kilowatts) And (4) changing.

Regarding blade radial acceleration and displacement: the resistance of the blade groove and the centrifugal force are offset,

if the thickness of the blade is 3mm, the total length is 10cm, the pressure difference is 5 kilograms, and the stress of the blade is 15 kilograms.

Assuming that the blade 50g, the acceleration is 3000 at 15x10/0.05 kg.

Displacement equal to 0.5at²＝0.5x3000xt²If the displacement is 6mm, t²＝6/(1000x1500)，t＝2ms。

At 3000 revolutions per minute, corresponding to 50 revolutions per second, 20ms per revolution.At this time, 1ms rotation through 18 degrees, blade extension speed, refer to And whether the vanes can be pushed out against the pump housing by a pressure differential at 3000 revolutions per minute.

The noise and wear are reduced overall, and the maximum speed is determined to be about 1500 rpm, with aluminum blades preferred, with reference to the above calculations.

Combine energy estimation for further design analysis as follows:

1kg of working medium is vaporized at about 0.1 degree, which is equivalent to 200 degrees of gasification temperature rise.

Setting 1kg working medium gasification pressure 1 MPa, after gasification, 0.036m³I.e., 36L. At maximum power, 50 revolutions per second, 1kg of gas is vaporized per minute, i.e. 36L of gas is vaporized per minute, i.e. 600ml of gas is vaporized per second, i.e. 12ml of gas per revolution. The first chamber volume required 0.33ml with 36 vanes. The volume of 1 cavity needs 0.6ml by 20 blades.

Regarding the pressure-limiting tank flow and power consumption: when the oil absorption of the pressure regulating ring is regulated, the oil discharged enters the first cavity, and the input amount can be halved, which means the expansion multiple multiplied by 2 or even more.

The power consumption of the blade root cavity booster pump is analyzed, the blade root cavity is used as 1 cavity to supplement 0.2ml, and when the number of blades is 36, 7.2ml needs to be supplemented in one rotation, and when 50 rotations per second, 360ml is correspondingly added. If the pressure difference is 10 kg, the corresponding 100 n × 3.6m is 360 joules, i.e. 360 w of power is consumed, which is converted into heat energy, and the heat energy is leaked from the vane slots to compensate the temperature and converted into electric energy again.

When the number of the blades is 18, 3.6ml is supplemented in 1 revolution and 25 revolutions per second is needed, the pressure difference is still 10 kg corresponding to 90ml per second, and 100 newton x0.9m is 90 joules, namely 90 watts.

Namely, the expansion multiple can be increased by adjusting the angle of the pressure regulating ring and increasing the flow of the lubricating oil of the pressure limiting groove, and the internal consumption is not greatly influenced.

And (3) temperature compensation estimation: the heat capacity of the lubricating oil is close to that of propane butane and the like, the temperature is set to 67 ℃, corresponding to 340k, the temperature is halved to 170k, corresponding to about-100 ℃, and the lubricating oil is mostly solidified. Neglecting the secondary circulation and the lubricating oil leaked from the blade grooves, when the liquid-gas ratio is half, the lubricating oil is also heated by the heat exchanger, after expansion and work is done, the theoretical temperature drop of the corresponding working medium is set to be 200 ℃, and under the temperature compensation, the actual temperature drop is about 100 ℃ (the heat capacity of the lubricating oil is close to that of propane butane, and the like), namely 67-100 is-33 ℃.

[ expansion work and temperature drop calculation ]: when the maximum generating power is lower than the maximum generating power, the input of the generating pump is completely gasified, namely, the input of the generating pump cannot be continuously gasified during the expansion work doing process. In other words, in the expansion stage at this time, the ideal gas state equation PV is satisfied regardless of the secondary vaporization.

According to the calculation of expansion work as heat energy consumption, PV as CT, the temperature of the expansion section will be reduced, the pressure will be reduced again due to the temperature reduction, the temperature will be increased in the compression section, the pressure will be increased again due to the temperature increase,

when there is temperature compensation, however, the amount of temperature change is small, assuming that the temperature is constant,

ignoring the difference between constant pressure heat capacity and constant volume heat capacity, let us say gas heat capacity C, one gas pressure is P0, one gas pressure at normal temperature, 1kg gas volume V0. Expansion multiple m, the pressure after heating by the heat exchanger is P1, and the pressure after expansion is P2. Then, P2 is P1/m.

The volume change of one kilogram of high-pressure gas is as follows: Δ V-V0 × P0/P2-V0 × P0/P1-m-1 × V0 × P0/P1.

Expansion work is done: w ═ Δ V × (P1+ P2)/2 ═ m-1 × V0 × P0/P1 × [ P1 × (m +1)/2m ] ≈ V0 × P0 × m/2.

Namely, the work amount is related to the volume of 1kg of gas at normal temperature and normal pressure, the expansion multiple and the high and low pressure of the system.

However, this is not understood properly, since the lower the high pressure, the lower the mass flow and the lower the power at the same speed.

Continuing the above calculation, let V0 be 0.3m³If m is 30 times, the heat capacity C is 1.7KJ/KG

Then, Δ T ═ W/C ═ 0.3 × 0.1 mx 15/1.7k ≈ 450/1.7 ≈ 265 ℃.

At the moment, the gas does work and approximately uses the vaporization heat plus the energy absorbed by the temperature rise after gasification,

at low temperature, liquefaction can be easily finished without excessive compression work.

Setting 1kg of working medium under 1 air pressure to be 0.3 cubic meter, steaming 30kg of working medium in one hour, namely 0.5kg per minute,

corresponding to V being 0.5 x0.3xp0/pth, pth being 10, i.e. 1 mpa.

Then V0.015 cubic meter 15 KmL. The rotation speed per minute is set to be 1500 revolutions per minute,

then 15k/1500 ═ 10ml needs to be taken away per revolution.

Assuming a leaf count of 18, the entrainment per interval is 10/18 ≈ 0.55mL, i.e. 1 chamber volume, about 0.55 mL.

It is practical or desirable to evaporate 1kg per minute, while P is high ≈ 8, i.e., it may be relatively more practical to set the volume of the 1 chamber at 1 mL.

The pump shell is lengthened, namely the volume of the 1 cavity and the maximum power are increased. The generated power is different from the thermoelectric conversion efficiency, for example, when the system is placed in hot water without heat loss, the thermoelectric conversion efficiency is 100%, but the generated power is not necessarily high in cost performance.

The power generation system [ summary of control circuit design ] is described as follows:

referring to fig. 12, when the detected grid voltage has large fluctuation, the main power supply needs to be switched to control the boost circuit, or to make another choice.

Fig. 12, a block diagram of the power generation system circuit: is a control system prototype and needs to be perfected. Every cycle of the self-checking system scans all potential faults and gives an audible and visual alarm, for example:if the generator is not increased under the unsaturated power generation state The generating power is improved by the large liquid injection pump flow,corresponding to an alarm sound characteristic and a light-on alarm, or using a nixie tube or using 4 LEDs to express 14 faults (4 LEDs are completely extinguished in normal work, and 4 LEDs are simultaneously lightened, then completely extinguished and then lightened again when an alarm is given).

The alarm characteristic can be set in a three-state mode through a three-state switch: 1, sound and light alarm works simultaneously. 2, only sound alarm is provided. And 3, only giving an alarm by light. When the combustible gas leaks, the sound and the light alarm are simultaneously carried out, and the alarm is not limited by the setting.

When the system is in fault, the power can not be generated normally, and the liquid injection pump can not be started.

The PWM of the booster pump can be considered to be a timing interruption, and can also be used in other schemes, and all the schemes are general electronic technology.

The specific implementation mode is as follows:

1, if successful, after production, a plurality of sets of power generation systems are used for multiple times in a deep basement respectively Fatigue by pressure, camera monitoringAnd (4) testing the service life, finding problems in advance and analyzing and solving the problems in advance.

Such as: the generated electricity passes through the heater and returns to the hot water tank again, and the hot water is kept at high temperature all the time.

And 2, carrying out temperature and pressure measurement of butane pentane and the like, chemical test of the butane pentane and the enameled wire in high-temperature and variable electromagnetic fields, and magnet temperature demagnetization test. If chemical reaction exists, the design of the generator needs to be considered deeply.

3, requirements of an experimental platform, experimental monitoring and optimal design:

test platform requirements; the method comprises the steps of ventilation, fire prevention, static prevention, safety warning board arrangement and safety regulation planning in an experimental place. The hot water temperature and the cold water temperature are set as standards, and the supply speed of the integrated liquid injection pump is set, so that the test preconditions are consistent each time. When the pressure regulating ring or the power generation working medium proportion is replaced, the number of a power generation pump, the parameters of the pressure regulating ring, the power generation working medium proportion, the power generation power, the input pressure and temperature of the 1 cavity, the position of an output hole of a valve plate, the temperature of an output pipe and the like need to be recorded clearly, and a test video is attached, so that test files and records can be traced clearly. Namely, during the trial production, a test platform needs to be built, and the consistent preconditions of each test are ensured.

Regarding safe operation and maintenance, after the power generation is verified to be feasible, relevant national safety standards are learned, and the product description is described after the approval. The experimental period is safe, and the self-checking function of the system needs to be completed firstly.

3.1, utilizing the existing through holes of the end cover of the valve plate, or drilling holes at the positions of the peripheral end surface and the outer end surface of the valve plate of the end cover corresponding to all cavities, sealing and fixing a pressure gauge, and monitoring ultra-low pressure after system high pressure and system low pressure are forced to expand.

And 3.2, measuring the temperature of an input pipe and an output pipe of an input pipe and the temperature of a forced expansion cavity by using a temperature sensor of a local heat preservation pipe.

3.3, the motor in the integrated liquid injection pump works at full load, and the output electric energy is used for heating the heating rod in the hot water tank. And measuring the generated power by monitoring the voltage and the current of the heating rod. Namely, the generated power is detected, the generated power when different parameters are set is compared, and comprehensive analysis and optimal design are carried out according to the measured data obtained by test monitoring.

4, power generation working medium ratio, associated system high pressure, system low pressure, power generation performance, generating efficiency:

the mixed raw materials comprise propane, butane, pentane series and lubricating oil series. The parameters of high pressure and low pressure of the system are adjusted by utilizing the conditions that the propane pressure is higher than the atmospheric pressure, the butane pressure is slightly higher than the atmospheric pressure and the pentane pressure is lower than the atmospheric pressure at normal temperature.

Low temperature lubricating oil or ultralow temperature lubricating oil is used. The lubricant oil working temperature index is limited by the lubricant oil temperature compensation ratio and the low temperature value of the forced expansion area. Example (c): if the expanded temperature is forced to be lower than-80 ℃, the ultralow-temperature lubricating oil can also lose effectiveness, and the proportion of the lubricating oil needs to be increased.

5, the key of the process of the generating pump is the smoothness and the curve precision of the inner wall of the generating pump, so that the emphasis is placed here,

the inner wall of the pump shell has 4 process options: and 1, milling. And 2, hot-pressing and perforating. And 3, integral casting. 4, half-casting, as in fig. 11.

The wall thickness of the power generation pump shell is designed, so that the wall thickness is not designed according to the gas tank, and the gas tank is transported after being refilled and works statically. The power generation pump shell is a safe wall thickness design under long-term vibration fatigue. The total weight of combustible materials contained in the power generating pump relative to the gas tank is equivalent to that of butane contained in more than ten lighters. I.e. less dangerous.

In addition, the domestic liquefied gas contains propane, the pressure of the propane is higher at 60 ℃, and the power generation may use a mixed liquid of butane, pentane and the like with lower pressure at 60 ℃ instead of propane.

6, air exhaust: after the system is initially loaded, a small amount of butane is injected, after 5 minutes, the exhaust valve at the top of the figure 1 is opened, and after 5-20 seconds, the exhaust valve (the outlet manual shut-off valve) is closed, so that the butane can continuously exhaust air along the power generation pump.

When air is discharged, ignition is prohibited: because the inside is the gas mixture, the flame will extend inwards to cause implosion.

7, after air is exhausted, a small amount of power generation working medium and lubricating oil are injected, high-temperature hot water is added, a liquid injection pump is started, and high-pressure air tightness is tested.

Description of the drawings:

FIG. 1: schematic diagram of a hot water power generation system.

FIG. 2: the thermal power generation system block diagram illustrates:

note: in the right upper corner of the right side of the figure 2, the anti-explosion valve and the anti-explosion filtering rectifier correspond to the lubricating oil even distribution, are in the hot water tank in principle, but can be adjusted to the position of a cattle shoulder or a rhinoceros horn actually, namely, the heat-insulating sleeve can be wrapped in the link and placed in the cold water tank actually.The addition of a cold water tank makes it possible to realize high-efficiency and high-power generation by taking into account the need for a cooler and a generator or the need for heat dissipation.

FIG. 3: a hot gas power generation heat exchanger (the cold drawing wire 4 is arranged on a horizontal symmetrical line and only needs to be threaded through two). The numerical designations are described below:

1, heat exchange tube. 2, heat exchange plates (semi-circular arc < 180 degrees). 3, sleeve (or heat shrink tube, or gasket). And 4, cold drawing.

Fig. 4 shows a hot water power generation heat exchanger (and a heat exchange fin shown by numeral 2 in fig. 3 may also be added), and the numerals are described as follows:

1: the tower spiral pipe (the upper mirror image or the lower mirror image can be overlapped and lengthened when the power needs to be increased). And 2, an explosion-proof filtering rectifier. And 3, a tee joint.

Fig. 5, schematic diagrams of [ explosion-proof valve ] and [ explosion-proof filtering rectifier ], the numerical identifiers are described as follows:

1, a tube. 2, beads. And 3, an arc-shaped elastic sheet. And 4, an explosion-proof valve core. And 5, sealing rings. And 6, filtering the rectifier shell. 7, filtering by using a filter screen.

FIG. 6, schematic view of an integrated infusion pump, the numerical designations being as follows:

1, gear pump upper end cover. 2, gear pump input port. And 3, buffering by an explosion-proof cavity. And 4, manually closing the explosion-proof valve at the outlet.

And 5, an oil sludge zone. And 6, filling port and ball valve. And 7, an explosion-proof buffer channel. And 8, a pressure limiting and flow limiting exhaust valve. 9, returning.

And 10, manually closing the explosion-proof valve by a return port. 11, motor cavity. 12, a coupler. 13, and an outlet. 14, a float. And 15, a stirring paddle.

16, an oil drain port. 17, gear pump or vane pump. 18, beads.

Fig. 6.1, [ integrated liquid filling pump ] preset tube reprocessing, schematic diagram of valve core design example, and numerical identification description as follows:

and 1, sealing and plugging. And 2, manually and explosively shutting off the valve core at the outlet. And 3, returning to the manual explosion-proof shutoff valve core.

And 4, normally and manually turning off the valve core. 5, the shutoff valve core can be discharged. And 6, inverting the return opening and manually switching off the valve core in an explosion-proof way.

And 7, a one-way explosion-proof valve core. And 8, a spill valve core.

Fig. 7 shows a rhinoceros-shaped power generation pump component, which has a schematic structure and the following numerical identifiers:

FIG. 8: [ rhinoceros-shaped double-acting electric generating pump ] is a three-dimensional schematic diagram, and the numerical identifiers are described as follows:

1, a rhinoceros-shaped pump shell. 2, a hollow rotor. And 3, a pin key. And 4, rotor blocking. And 5, a baffle ring. 6, a hollow shaft.

And 5, filtering by using a filter screen. And 8, flow equalizing screw is inserted into the holes. And 9, a hole shunt rod is arranged. And 10, an end cover valve plate.

And 11, a voltage regulating ring. 12 and an outlet. 13, intermediate port plate. And 14, sealing ring grooves. And 15, assembling the positioning pin.

FIG. 9: a rhinoceros-shaped single-action electric generating pump is prepared by a trial scheme for the first time, and the numerical identifiers are described as follows:

1, inner wall of pump shell. And 2, sealing ring grooves. And 3, a pin key.

4.1, a port plate output hole. 4.2, a shunt rod is added to an output hole on the pump shell. (either one of the two is selected).

And 5, forming an inclined through hole on the valve plate. And 6, a pressure limiting groove. 7, positioning pins. And 8, a pump shell is provided with a blind hole. 9, an outlet of the middle port plate.

10, a middle valve plate generator cavity backflow hole. And 11, inputting end cover port flow distribution plate angles and sealing rings of pump shell blind holes.

12, hollow rotor inner filter screen. 13, plugging the outer annular groove by the hollow rotor. And 14, adjusting the pressure ring to start blocking.

15, a through hole is formed in the hollow rotor block ring groove. And 16, communicating the groove on the pressure regulating ring. And 17, regulating a pressure ring pressure gear.

FIG. 10: a rhinoceros-shaped double-acting electric generating pump is provided with a first trial scheme, and the digital identification is described as follows:

1, generating pump shell inner wall.

2.1, an output hole is arranged on the port plate. 2.2 adding a shunt rod in an output hole on the pump shell. (either one of the two is selected).

And 3, forming an inclined through hole on the valve plate. And 4, positioning pins. And 5, inputting and communicating the blind holes on the end cover valve plate. 6, a hollow rotor.

7, hollow rotor inner filter screen. And 8, adjusting the initial gear of the pressure ring. And 9, regulating a pressure ring and a pressure gear. 10, intermediate port plate outlet.

11, an oil return hole of the generator cavity is formed in the middle valve plate. 12, stopping the oil drain valve on the middle port plate. And 13, sealing ring grooves.

And 14, plugging an outer side through hole ring groove by the hollow rotor. 15, a pressure limiting groove is arranged on the valve plate. And 16, a pump shell blind hole sealing ring.

17, a pin key. 18, rhinoceros horn input. And 19, fixing screw counter bores on the pressure regulating ring.

FIG. 11 is a schematic view of a semi-casting process for machining a test piece of a pump casing,

in the figure, the yellow lower end cover (the initial drawing is a colored drawing) indicates that the bottom surface is poured, the square cutting plate is convenient to make, and the positioning precision is easy to ensure.

FIG. 12, a block diagram of the power generation system circuit preliminary concept: the description is as follows:

the key of the power generation (low cost and high efficiency power generation) is that the cost performance is the first to come, the subsequent technologies such as storage battery inversion grid connection and the like are better and better, the related technologies involve shallow skin, the designed block diagram is rough, therefore, the related technologies are not related to a power grid (namely, the isolation grid connection technology is firstly adopted, the complexity is reduced), the efficient power generation is firstly confirmed, the reference is only provided, in the block diagram, the power grid frequency voltage is collected, the output of an inverter is synchronized with the power grid, the power grid connected with a relay 2 is disconnected after a relay 1 is attracted and connected to the grid, the water temperature is insufficient or manually operated, and when the power grid needs to be cut back, the relay 2 is connected with the power grid, and then the power supply (220V AC inverter) is disconnected. If the daily generated energy is enough, the power supply is switched infrequently.

And the state of a manual switch is detected, and if the system is not required to supply power, the liquid injection pump cannot be started when the power utilization current is detected.

Claims

1. The power generation method comprises the following steps: the thermal power generation is realized by using the expansion working and the forced expansion working characteristics.

2. And the hot water heat exchanger and the hot gas heat exchanger are constructed by combining the power generation principle.

3. The integrated liquid injection pump (the application is not limited to the power generation, the appearance is not limited to the cube, and more or less than two preset pipes can be arranged).

4. The single-acting blade type power generation pump is used for pushing out the blades by pressurizing (or bead guiding or boss guiding) of the pressure regulating ring, and utilizing expansion to do work and forcing the expansion to do work to generate power.

5. The double-acting blade type power generation pump is used for pushing out the blades by pressurizing (or bead guiding or boss guiding) of the pressure regulating ring, and utilizing expansion to do work and forcing the expansion to do work to generate power.

6. And designing a circuit of the power generation system.

7. The design of the design growth space and the derivative product specifically comprises: within the range of the thermal power generation principle, the control system is upgraded (backup scheme) (production of grinding tools and processing technology) (reduction of heat consumption of a rotor and a stator of a generator) (appearance design) (design space for derivative product design such as ship or motor home application, waste heat power generation, cluster power generation and grid-connected system, low-speed annular vane type power generation pump generator) and the like, which are related to the hot water power generation and the hot gas power generation.