Heat energy engine system using diethyl ether as working medium

Abstract

The invention discloses a heat energy engine system using diethyl ether as a working medium. The system takes diethyl ether as a working medium, energy conversion is realized through heating vaporization and expansion acting of the diethyl ether, and the system mainly comprises the following components: a closed heated cylinder, which is used for accommodating liquid diethyl ether and heating the liquid diethyl ether to a vaporized state to generate high-pressure gaseous diethyl ether; the acting machine in the closed acting box body pushes the machine to move through expansion of high-pressure gaseous ether, and mechanical energy is output; the cooling cylinder is used for cooling the working gaseous diethyl ether to be below the boiling point of the working gaseous diethyl ether and condensing the working gaseous diethyl ether into liquid; the conveying pump is used for conveying the liquid diethyl ether in the cooling cylinder back to the closed heated cylinder to complete circulation; the characteristics of low boiling point and high expansion ratio of diethyl ether are fully utilized, so that the diethyl ether becomes an ideal working medium and is used for efficiently converting heat energy into mechanical energy. Through phase change circulation between liquid diethyl ether and gaseous diethyl ether, the system realizes energy conversion and cyclic utilization of diethyl ether, and has the characteristics of high efficiency, energy conservation and environmental protection.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal energy engines, and in particular relates to a thermal energy engine system using ether as a working fluid. Background Art

[0002] Existing engines are mainly divided into two types: internal combustion engines and steam engines. Internal combustion engines generate high-temperature and high-pressure gas by burning diesel or gasoline, and use the expansion of gas to push the piston to do work. However, the thermal energy conversion efficiency of internal combustion engines is low, and only about 30% of the thermal energy can be effectively converted into mechanical energy. The remaining about 70% of the thermal energy is wasted and directly released into the environment, causing resource waste and thermal pollution. In addition, internal combustion engines rely on non-renewable fossil fuels. With the increase in global energy consumption, fossil fuel resources are becoming increasingly depleted.

[0003] Steam engines rely on water as a working fluid, generating steam by heating it to drive the machine to do work. Although steam engines have improved energy utilization to a certain extent, their heating process consumes a lot of energy, and the system is large in size and has relatively low operating efficiency, which limits their widespread application in the modern energy field.

[0004] In the context of the increasingly prominent energy crisis and environmental protection needs, exploring the use of other working fluids to achieve efficient conversion of thermal energy into mechanical energy has become an important issue that needs to be solved urgently. Based on this, the present invention proposes a thermal energy engine system using ether as a working fluid, which gives full play to the unique physical properties of ether such as low boiling point, high expansion ratio, and high heat transfer efficiency, and efficiently converts thermal energy into mechanical energy through a cyclic phase change process, thereby improving energy utilization and reducing the impact on the environment. Summary of the invention

[0005] The purpose of the present invention is to propose a thermal energy engine system different from traditional internal combustion engines or steam engines. The system selects ether as the main working fluid and realizes efficient conversion of thermal energy into mechanical energy through its unique physical properties. The present invention aims to solve the problems of low thermal energy utilization efficiency, serious resource waste, large system volume, etc. in the prior art, and provide an efficient, energy-saving and environmentally friendly solution for the field of thermal energy conversion.

[0006] Comparison of working fluid selection

[0007] Ether and water as working fluids have significant differences in the following physical properties and calculations:

[0008] Boiling Point:

[0009] The boiling point of ether is 34.6°C, which is much lower than the 100°C of water. This means that ether can be vaporized at a lower temperature, which reduces the heating energy consumption of the system and is suitable for utilizing low-grade heat sources.

[0010] Expansion ratio:

[0011] Under normal pressure, the volume of 1 liter of liquid ether can expand to about 261.85 liters after it is completely vaporized, while the expansion ratio of water is much lower than this. The high expansion ratio enables ether to more effectively drive pistons or turbines and output more mechanical energy.

[0012] Specific Heat:

[0013] Ether has a lower specific heat capacity and heats up faster than water, which helps speed up system response and work efficiency.

[0014] Condensation characteristics:

[0015] Ether condenses into liquid more efficiently during the cooling process, and the system can more easily recycle the working fluid.

[0016] Environmental adaptability:

[0017] The low boiling point of ether makes it more suitable for low-temperature environments, and it can use low-grade heat sources such as solar energy and industrial waste heat as driving energy, thereby reducing dependence on high-temperature heat sources.

[0018] From the above comparison, it can be seen that using ether as a working fluid has significant advantages in terms of heat energy conversion efficiency, system energy consumption, structural design, etc. The present invention realizes efficient conversion and recycling of heat energy through the phase change cycle of ether from liquid to gas and then to liquid, while reducing pollution to the environment and dependence on traditional energy. The system is particularly suitable for small and medium-sized thermal power generation devices, industrial waste heat recovery equipment, and portable energy conversion devices.

[0019] The present invention provides the following technical solution: a thermal energy engine system using ether as a working fluid, comprising a closed heating cylinder for containing liquid ether and heating it to a temperature higher than its boiling point, so that the liquid ether is vaporized into high-pressure gaseous ether in a closed environment;

[0020] A working machine is located in a sealed working box, the working machine receives high-pressure gaseous ether and uses its expansion to push the working machine to work and output mechanical energy; and the sealed heated cylinder and the working machine are connected through a high-pressure delivery pipe to deliver high-pressure gaseous ether, and a pressure control valve is provided on the high-pressure delivery pipe;

[0021] The cooling cylinder is used to reduce the temperature of the gaseous ether to below its boiling point so as to condense the gaseous ether into liquid ether; and the closed working box is connected to the cooling cylinder through an output pipeline to transport the gaseous ether after working;

[0022] The delivery pump is used to deliver the liquid ether in the cooling cylinder to the closed heating cylinder again; and the delivery pump is located on the delivery pipeline connecting the cooling cylinder and the closed heating cylinder.

[0023] Preferably, the cooling cylinder is a variable volume closed structure with a piston.

[0024] Preferably, the working machine may be any one of a multi-stage turbine and a piston device.

[0025] Preferably, the high-pressure delivery pipe, the output pipe and the delivery pipe are all made of high-temperature resistant and corrosion-resistant pipes.

[0026] Preferably, a cooling device for reducing the temperature of the gaseous ether to below its boiling point is provided inside the cooling cylinder.

[0027] Compared with the prior art, the present invention has the following beneficial effects: the present invention utilizes the unique physical properties of ether as a working fluid to drive a piston or a turbine to do work; the low boiling point and high expansion ratio of ether make it an ideal working fluid for converting thermal energy into mechanical energy, and the present invention utilizes ether to transform from a liquid state into a high-pressure gas state and then into a liquid state, completing energy conversion, and the ether is recycled in the system, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the working principle of the present invention;

[0030] In the figure: 1. Closed heated cylinder; 2. Pressure control valve; 3. Working machine; 4. Sealed working box; 5. Cooling cylinder; 6. Delivery pump; 7. High-pressure delivery pipe; 8. Output pipeline; 9. Delivery pipeline. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1 and 2 , which is the first embodiment of the present invention, and this embodiment provides a technical solution: a thermal energy engine system using ether as a working fluid, comprising a closed heating cylinder 1, which is used to contain liquid ether and heat it to a temperature higher than its boiling point, so that the liquid ether is vaporized into high-pressure gaseous ether in a closed environment;

[0034] The working machine 3 is located in the sealed working box 4, and the working machine 3 receives high-pressure gaseous ether and uses its expansion to push the working machine 3 to work and output mechanical energy; and the closed heated cylinder 1 and the working machine 3 are connected through a high-pressure delivery pipe 7 to deliver high-pressure gaseous ether, and a pressure control valve 2 is provided on the high-pressure delivery pipe 7;

[0035] The cooling cylinder 5 is used to reduce the temperature of the gaseous ether to below its boiling point, so that the gaseous ether is condensed into liquid ether; and the closed working box 4 and the cooling cylinder 5 are connected through an output pipe 8 to transport the gaseous ether after working;

[0036] The delivery pump 6 is used to deliver the liquid ether in the cooling cylinder 5 back to the closed heating cylinder 1; and the delivery pump 6 is located on the delivery pipeline 9 connecting the cooling cylinder 5 and the closed heating cylinder 1.

[0037] In this embodiment, preferably, the cooling cylinder 5 is a variable volume closed structure with a piston.

[0038] In this embodiment, preferably, the working machine 3 is a multi-stage turbine.

[0039] In this embodiment, preferably, the high-pressure delivery pipe 7, the output pipe 8 and the delivery pipe 9 are all made of high-temperature resistant and corrosion-resistant pipes.

[0040] In this embodiment, preferably, a cooling device for reducing the temperature of the gaseous ether to below its boiling point is provided inside the cooling cylinder 5 .

[0041] Example 2

[0042] This is the second embodiment of the present invention, which is based on the previous embodiment, except that:

[0043] In this embodiment, preferably, the working machine 3 is a piston device.

[0044] The working principle is as follows: liquid ether is heated in a closed heated cylinder 1, and the temperature rises to above its boiling point, and the ether changes from liquid to high-pressure gas. At this time, the pressure control valve 2 opens the high-pressure delivery pipe 7, and introduces the high-pressure gaseous ether into the multi-stage turbine or piston device in the closed working box 4. The expansion of the gas drives the turbine or piston to work, thereby outputting mechanical energy. The gaseous ether after work enters the variable-volume cooling cylinder 5 with a piston through the output pipe 8 of the closed working box 4. The cooling cylinder 6 reduces the temperature of the gaseous ether to below its boiling point through the cooling device, causing the ether to condense into a liquid state. Subsequently, the liquid ether re-enters the closed heated cylinder 1 through the delivery pump 6, and a new cycle begins.

[0045] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal energy engine system using ether as a working fluid, characterized in that: It comprises a closed heating cylinder (1) for containing liquid ether and heating it to a temperature higher than its boiling point, so that the liquid ether is vaporized into high-pressure gaseous ether in a closed environment; A working machine (3) is located in a sealed working box (4), wherein the working machine (3) receives high-pressure gaseous ether and utilizes its expansion to push the working machine (3) to work and output mechanical energy; and the sealed heated cylinder (1) and the working machine (3) are connected through a high-pressure delivery pipe (7) to deliver the high-pressure gaseous ether, and a pressure control valve (2) is provided on the high-pressure delivery pipe (7); The cooling cylinder (5) is used to reduce the temperature of the gaseous ether to below its boiling point so that the gaseous ether condenses into liquid ether; and the closed working box (4) and the cooling cylinder (5) are connected through an output pipe (8) to transport the gaseous ether after the work; The delivery pump (6) is used to deliver the liquid ether in the cooling cylinder (5) back to the closed heating cylinder (1); and the delivery pump (6) is located on a delivery pipeline (9) connecting the cooling cylinder (5) and the closed heating cylinder (1).

2. A thermal energy engine system using ether as a working fluid according to claim 1, characterized in that: The cooling cylinder (5) is a variable volume closed structure with a piston.

3. A thermal energy engine system using ether as a working fluid according to claim 1, characterized in that: The working machine (3) may be any one of a multi-stage turbine and a piston device.

4. A thermal energy engine system using ether as a working fluid according to claim 1, characterized in that: The high-pressure delivery pipe (7), the output pipe (8) and the delivery pipe (9) are all made of high-temperature-resistant and corrosion-resistant pipes.

5. A thermal energy engine system using ether as a working fluid according to claim 1, characterized in that: The cooling cylinder (5) is provided with a cooling device for reducing the temperature of gaseous ether to below its boiling point.

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