WO2015188757A1

WO2015188757A1 - Automatic air-discharging liquid piston engine

Info

Publication number: WO2015188757A1
Application number: PCT/CN2015/081200
Authority: WO
Inventors: 杨永顺
Original assignee: 新疆阳光动力能源科技有限公司
Priority date: 2014-06-11
Filing date: 2015-06-10
Publication date: 2015-12-17
Also published as: CN104110324A; CN104110324B

Abstract

An automatic air-discharging liquid piston engine comprising a cold cylinder (13), a hot cylinder (15), a heater (16), a regenerator (17), a cooler, and a power output pipe (19). Liquid pistons communicated at the bottom are provided in the cold cylinder (13) and the hot cylinder (15). The heater (16), the regenerator (17), and the cooler are sequentially connected. The hot cylinder (15) is connected to the heater (16). The cold cylinder (13) is connected to the cooler. The power output pipe (19) is connected to the hot cylinder (15) and extends upward in the hot cylinder (15) from below a set minimum liquid level to above the set minimum liquid level. A manifold component (159) is also provided on a hot cylinder wall (150). The manifold component (159) is provided at where the set minimum liquid level is located. The manifold component (159) connects the hot cylinder (15) to the power output pipe (19). The automatic air-discharging liquid piston engine is capable of automatically discharging air below the set minimum liquid level, thus preventing the liquid level in the hot cylinder from falling below the set minimum liquid level.

Description

Automatic exhaust liquid piston engine

Technical field

This invention relates to engines, and more particularly to an automatic exhaust liquid piston engine.

Background technique

The hot air machine is an externally fired closed-loop reciprocating piston heat engine. It was also invented in Sterling, Scotland in 1816, and is also called the Stirling engine, or external combustion engine. Since the hot air machine avoids the problem of the shocking work of the conventional internal combustion engine, low noise, low pollution and low running cost are realized. The power and efficiency of the hot air machine is not affected by altitude and is ideal for use at high altitudes.

The hot air chamber, the heater, the regenerator, the cooler and the cold chamber of the hot air machine are sequentially connected with each other to form a gas passage, and the heater is heated by an external heat source, so that the gas in the gas passage is in the cold chamber and the hot chamber. The reciprocating motion expands and contracts, and the power is output through the transmission mechanism to perform work. Previously, the piston used in a hot air machine was usually a solid piston.

When a solid state piston is used in a hot air machine, it has the disadvantages of easy wear, high noise, and poor sealing performance, and the processing process is complicated and the cost is high. The research on the use of a liquid piston hot air machine started late.

Since the heat engine belongs to the engine type, the heat engine using the liquid piston can also be called a liquid piston engine.

The publication number is CN103321775A (hereinafter referred to as Document 1), and the Chinese invention patent entitled "Boiler and Liquid Piston Heater" discloses a liquid piston hot air machine. The Chinese invention patent entitled "Liquid Piston Heater", published as CN103726948A (hereinafter referred to as Document 2), discloses a liquid piston hot air machine which is improved on the basis of Document 1.

As shown in FIG. 1 (ie, FIG. 4 in Document 2), the liquid piston heat engine of Document 2 includes a first cylinder (substantially a hot cylinder) 15, a second cylinder (substantially a cold cylinder) 13, and a heater. 16. The regenerator 17 and the cooler, the hot cylinder 15 and the second cylinder 13 have a liquid piston communicating with the bottom; the heater 16, the regenerator 17 and the cooler are connected in series, and the hot cylinder 15 is connected to the heater 16. The second cylinder 13 is connected to the cooler; the first end of the power output pipe 19 of the liquid piston hot air machine projects into the hot cylinder 15 or is connected to the bottom of the hot cylinder 15 to be connected through the second end of the power output pipe 19 The valve body, the plunger pump, or the diaphragm pump output a reciprocating power outward. The cooler includes an air-cooled line exposed to the air, a water-cooled line connected to the air-cooled line, and a water jacket 11 enclosing the water-cooled line. The air-cooled pipeline includes a circular arc segment 121, a heat dissipation portion 122 and a transition portion 123, and the water jacket 11 has a water inlet 110 at each end thereof. And the water outlet 111.

The automatic exhaust liquid piston engine of Document 1 has the advantages of low noise, good sealing performance and no wearing parts, free from routine maintenance, simple processing technology and low cost. The heat engine for the liquid piston has entered the application stage by research. The liquid piston hot air machine of Document 2 further enhances the cooling effect of the cooler on the basis of maintaining the advantages of the liquid piston hot air machine of Document 1, so that the entire hot air machine has better running condition, higher operating efficiency, and has reached The purpose of water saving and environmental protection.

However, in the liquid piston heat engine of Documents 1 and 2, the volume of the liquid in the heat engine is reduced due to the influence of the volatilization of impurities in the liquid in the liquid piston or the slight leakage of the heat engine itself. In the case, although the amount of reduction is small, the rate of reduction is very slow, and most of them do not affect the normal operation of the heat engine. However, with the accumulation of a long time, the liquid level in the hot cylinder will also drop below the set minimum liquid level, which will affect the stability and power of the hot air machine.

Therefore, for the sake of excellence, it is necessary to develop a new hot air machine to avoid the above problems.

Summary of the invention

In view of the problems existing in the prior art, the object of the present invention is to provide an automatic exhaust liquid piston in which the liquid level in the hot cylinder does not fall below the set minimum liquid level, and the stability and power of the hot air machine are ensured. engine.

In order to achieve the above object, the technical solution of the present invention is as follows:

An automatic exhaust liquid piston engine comprising a cold cylinder, a hot cylinder, a heater, a regenerator, a cooler and a power output pipe, wherein the cold cylinder and the hot cylinder have a liquid piston connected at the bottom; the heater, a regenerator and a cooler are connected in series, the hot cylinder is connected to the heater, the cold cylinder is connected to the cooler; the power output pipe is connected to the hot cylinder, and the hot cylinder is provided Extending at a minimum liquid level to extend above a set minimum liquid level; the hot cylinder wall is further provided with a gas separation component, the gas separation component is disposed at a set minimum liquid level, and the gas separation component is The hot cylinder is in communication with the power take-off.

The invention has the beneficial effects that the automatic exhaust liquid piston engine of the invention maintains the existing liquid piston engine with low noise, good sealing performance, no wearing parts, no daily maintenance, simple processing technology, good cooling effect and Low cost and other advantages. At the same time, by providing a gas-dividing component on the hot cylinder wall, the gas below the minimum liquid level can be automatically discharged when the liquid level drops below the set minimum liquid level, so that the liquid level in the hot cylinder is not lower than The minimum liquid level is set to ensure the working stability of the liquid piston engine and ensure that the power of the liquid piston engine is not reduced.

DRAWINGS

1 is a perspective view of a prior art liquid piston engine.

Fig. 2 is a front elevational view showing the automatic exhaust liquid piston engine of the first embodiment of the present invention.

3 is a perspective view of an automatic exhaust liquid piston engine according to a first embodiment of the present invention.

Figure 4 is a left side elevational view of the automatic exhaust liquid piston engine of the first embodiment of the present invention.

Figure 5 is a perspective view of an automatic exhaust liquid piston engine in accordance with a second embodiment of the present invention.

Figure 6 is a front elevational view of an automatic exhaust liquid piston engine in accordance with a second embodiment of the present invention.

Fig. 7 is a schematic view showing the removal of the power cylinder of the hot cylinder of the automatic exhaust liquid piston engine according to the second embodiment of the present invention.

Figure 8 is a front elevational view of an automatic exhaust liquid piston engine in accordance with a third embodiment of the present invention.

Figure 9 is a cross-sectional view showing an automatic exhaust liquid piston engine according to a third embodiment of the present invention.

Figure 10 is a left side elevational view of an automatic exhaust liquid piston engine in accordance with a third embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly, the present invention will be further described in detail below with reference to specific embodiments. It should be noted that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The automatic exhaust liquid piston engine of the present invention can be applied to various occasions requiring reciprocating power, such as powering a linear generator, powering a water cycle, and the like.

The automatic exhaust liquid piston engine of the three embodiments of the present invention will be specifically described below. The automatic exhaust liquid piston engine of the embodiments of the present invention, the components not described below, may be the same components in Document 1 or Document 2, and will not be described again.

First, the automatic exhaust liquid piston engine of the first embodiment

As shown in FIG. 2 to FIG. 4, the automatic exhaust liquid piston engine of the first embodiment of the present invention mainly includes a hot cylinder 15, a second cylinder 13, a heater 16, a regenerator 17, a cooler, and a power output pipe 19. And other major components.

The cooler therein, as shown in FIG. 2 to FIG. 4, includes an air-cooled pipeline 12 exposed to the air, a water-cooled pipeline connected to the air-cooled pipeline 12 (not shown), and a water-cooled pipeline. Water jacket 11. The air-cooled pipeline includes a circular arc section, a heat dissipation section and a transition section, and the water jacket 11 has a water inlet 110 and a water outlet 111 respectively. However, the present invention is not limited thereto, and for example, the cooler structure in Document 1 can also be used.

As shown in FIG. 1, in the present embodiment, the power output pipe 19 is connected to the hot cylinder 15 and extends upward from the set minimum liquid level in the hot air cylinder 15 to above the set minimum liquid level; and, in the hot cylinder wall 150 (refers to the hot cylinder 15 On the cylinder wall, there is further provided a gas dividing pipe 159 as a gas dividing member, and the gas dividing pipe 159 is a straight pipe connected between the hot cylinder wall 150 and the pipe wall of the power output pipe 19. The position of the air dividing pipe 159 is flush with the set minimum liquid level in the hot cylinder 15, that is, the extending direction of the air dividing pipe 159 is equivalent to the position indicating the set minimum liquid level. The power output tube is designed as an S-shaped tube, which is more in line with the principle of fluid mechanics.

The inner diameter of the manifold 159 is preferably 6 mm or less, preferably 2-4 mm. The height difference from the bottom end of the power output pipe 19 to the set minimum liquid level is preferably 1.5-2 times the diameter of the hot cylinder 15, and the maximum output power can be obtained at this time. The bottom end of the power output pipe 19 referred to herein refers to the geometric center position of the intersection (non-planar pattern) obtained at the intersection of the power output pipe 19 and the hot cylinder wall 150.

As shown in FIGS. 2 and 3, the air distribution pipe 159 can communicate the hot air cylinder 15 with the power output pipe 19. Therefore, when the liquid piston engine operates normally, the air distribution pipe 159 is filled with liquid and does not leak from the air distribution pipe 159. When the liquid level in the hot cylinder 15 drops below the set minimum liquid level, it indicates that the liquid in the hot cylinder 15 is reduced and the gas is increased; at this time, gas is present in the gas dividing pipe 159, and the principle of the connected device is The liquid level in the power output pipe 19 also drops below the air distribution pipe 159. Therefore, excess gas in the hot air cylinder 15 is automatically discharged through the end of the power output pipe 19, thereby realizing an automatic exhaust function. After the excess gas is automatically discharged, the liquid level in the hot cylinder 15 will return to the set minimum level, and the liquid piston engine will still work normally. The plunger pump, valve body or diaphragm pump connected to the power output pipe 19 does not affect the automatic discharge of excess gas.

In the present embodiment, as shown in FIG. 4, the cold cylinder 13 and the hot cylinder 15 are parallel. Since the cold cylinder 13 and the hot cylinder 15 are both round tubes in the present embodiment, the cross sections of the cold cylinder 13 and the hot cylinder 15 are both The circular, cold cylinder 13 and the hot cylinder 15 in parallel mean that the axis of the cold cylinder 13 is parallel to the axis of the hot cylinder 15. Since the cold cylinder 13 and the hot cylinder 15 are parallel, the bottom ends of the cold cylinder 13 and the hot cylinder 15 are required to communicate through the communication pipe 20. Further, the acute angle between the heater 16 and the hot cylinder 15 is 30-60 degrees, preferably 45 degrees. That is, the acute angle between the extending direction of the heater 16 and the axis of the hot cylinder 15 is 30-60 degrees, preferably 45 degrees. With the above arrangement, the space directly under the heater 16 can be increased to facilitate the setting of the external heat source for heating the heater 16.

2. The automatic exhaust liquid piston engine of the second embodiment

The automatic exhaust liquid piston engine of the present embodiment will not be described again in the same place as the first embodiment, and is different from the first embodiment in that, as shown in FIGS. 5 to 7, in this embodiment, the air separation component It is no longer a gas pipe but a vent hole 193 provided in the hot cylinder wall 150 and covered by the power output pipe 19. The position of the vent 193 is at the set minimum level in the hot cylinder 15. The vent 190 in this embodiment is simpler than the manifold 159 of the first embodiment.

In this embodiment, the power output tube 19 includes a vertical tube 190 and a horizontal tube 191 attached to the hot cylinder wall 150. The upper edge of the horizontal pipe 191 has a higher height than the vent hole 193, and the lower edge has a lower height than the vent hole 193. As shown in FIG. 7, a vent hole 193 and a power output pipe mounting hole 192 may be respectively formed in the hot cylinder wall 150, and then a vertical pipe 190 and a horizontal pipe 191 covering the vent hole 193 may be installed.

The inner diameter of the vent hole 193 is preferably 6 mm or less, preferably 2-4 mm.

In the present embodiment, as shown in Fig. 7, the cross sections of the hot cylinder 15 and the cold cylinder 13 are both substantially rectangular, and have chamfers 152 at the joints of the adjacent two sides. Further, the opposite sides of the hot cylinder 15 and the cold cylinder 13 are the sides of the hot cylinder 15 and the cold cylinder 13 having a large area.

In the present embodiment, as shown in FIG. 6, the cold cylinder 13 and the hot cylinder 15 are parallel. Since the cross section of the cold cylinder 13 and the hot cylinder 15 are both rectangular in this embodiment, the cold cylinder 13 and the hot cylinder 15 are parallel. The side surface of the cylinder 13 having a larger area is parallel to the side surface of the hot cylinder 15 having a larger area, and the side surface of the cold cylinder 13 having a larger area is perpendicular to the side surface of the hot cylinder 15 having a smaller area. Since the cold cylinder 13 and the hot cylinder 15 are parallel, the bottom ends of the cold cylinder 13 and the hot cylinder 15 are required to communicate through the communication pipe 20. Further, the acute angle between the heater 16 and the hot cylinder 15 is 30-60 degrees, preferably 45 degrees. That is, the acute angle between the extending direction of the heater 16 and the side of the hot cylinder 15 is 30-60 degrees, preferably 45 degrees. With the above arrangement, since the two tubes having a rectangular cross section have more space than the two tubes, the present embodiment can further increase the space directly under the heater 16, which is more convenient for setting the heater 16. Heated external heat source.

Third, the third embodiment of the automatic exhaust liquid piston engine

The automatic exhaust liquid piston engine of the present embodiment will not be described again in the same places as the first and second embodiments. The difference from the above two embodiments is that, as shown in FIG. 8 to FIG. 10, in the present embodiment, the power is The output tube 19 enters the hot cylinder 15 at the set minimum level of the hot cylinder 15 and extends downwardly within the hot cylinder 15 to a depth of 1.5-2 times the diameter of the hot cylinder 15.

The gas separation element is a vent hole 198 opened in the power output pipe 19. The position of the vent 198 is within the hot cylinder 15 and at the set minimum level of the hot cylinder 15. The vent 198 in this embodiment is simpler than the manifold 159 of the first embodiment.

The inner diameter of the vent 198 is preferably 6 mm or less, preferably 2-4 mm.

The embodiments described herein are to be understood as illustrative and not restrictive. The scope of the present invention is defined by the scope of the claims, and is intended to be

Claims

An automatic exhaust liquid piston engine comprising a cold cylinder, a hot cylinder, a heater, a regenerator, a cooler and a power output pipe, wherein the cold cylinder and the hot cylinder have a liquid piston connected at the bottom; the heater, a regenerator and a cooler are connected in series, the hot cylinder is connected to the heater, and the cold cylinder is connected to the cooler;

The power output pipe is connected to the hot cylinder, and extends upward from a minimum liquid level in the hot cylinder to a set minimum liquid level;

The hot cylinder wall or the power output pipe is further provided with a gas separation component, the gas separation component is disposed at a set minimum liquid level, and the gas separation component connects the hot cylinder and the power output pipe Connected.
The automatic exhaust liquid piston engine according to claim 1, wherein said cold cylinder and said hot cylinder are parallel, and said heater and said hot cylinder are at an acute angle of 30 to 60 degrees.
The automatic exhaust liquid piston engine according to claim 1, wherein a height difference from a bottom end of said power output pipe to said set minimum liquid level is 1.5 to 2 times a diameter of said hot cylinder.
The automatic exhaust liquid piston engine according to claim 3, wherein said power output pipe is an S-shaped pipe.
The automatic exhaust liquid piston engine according to claim 4, wherein said gas dividing member is a straight pipe connected between said hot cylinder wall and said power output pipe wall.
The automatic exhaust liquid piston engine according to claim 2, wherein said gas dividing member has an inner diameter of less than 6 mm.
The automatic exhaust liquid piston engine according to claim 3 or 6, wherein said power output pipe enters said hot cylinder at said set minimum liquid level and extends downward, said gas dividing component a vent hole formed in the power output pipe in the hot cylinder.
The automatic exhaust liquid piston engine according to claim 6, wherein said gas dividing member is a vent hole provided in said hot cylinder wall and covered by said power output pipe.
The automatic exhaust liquid piston engine according to claim 2, wherein said hot cylinder and said cold cylinder have a rectangular cross section, and said opposite sides of said hot cylinder and said cold cylinder are The hot cylinder and the side of the cold cylinder having a larger area.
The automatic exhaust liquid piston engine according to claim 5 or 8 or 9, wherein an acute angle between said heater and said hot cylinder is 45 degrees, and an inner diameter of said gas dividing member is 2- 4mm.