Comprehensive water body treatment device for shape memory alloy waste heat power generation

Abstract

The invention discloses a comprehensive water treatment device for shape memory alloy waste heat power generation, relates to the technical field of waste heat recovery power generation, and solves the problems that a traditional waste heat recovery device is insufficient in energy conversion efficiency, structure complexity, automation degree, intermittent waste heat utilization, thermal pollution, expansibility, maintenance cost and the like. The device comprises two discs and a water tank, the two discs are arranged in the water tank through a support, and the lower ends of the discs are immersed in water; the two discs are oppositely arranged in a splayed mode in the horizontal direction and connected through a plurality of memory alloy springs, and the connecting positions are located on the edges of the discs. And a water outlet is formed in the other end of the water tank. Waste water waste heat is used for driving the shape memory alloy to deform so as to drive the power generation element to generate power; waste heat in the high-temperature industrial wastewater is utilized by utilizing the shape memory effect and the temperature-sensitive characteristic of the alloy, and conversion from heat energy to kinetic energy is realized, so that a motor is driven to generate power, and electric energy is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of waste heat recovery power generation, and particularly to a comprehensive water body treatment device for waste heat power generation using shape memory alloys. Background Art

[0002] Shape Memory Alloys (SMA) are materials composed of more than two metal elements that have a shape memory effect through thermoelastic and martensitic phase transformations and their inversions. It undergoes plastic deformation in a low-temperature environment. When heated to a certain specific temperature, the alloy generates a recovery stress that forces it to return to its initial shape. In this field, the Ni-Ti alloy is the earliest developed and most comprehensively studied alloy, which has excellent shape memory characteristics, strong fatigue resistance, and excellent biocompatibility. As a special new functional material, shape memory alloy integrates sensing and driving. Due to its unique function, it can be used to manufacture high-performance and highly automated components and has been widely used.

[0003] Shape memory alloys have various driving methods such as temperature, stress, and electric field driving, among which temperature driving is more commonly studied. The plastic deformation generated by shape memory alloys in a low-temperature environment, when heated to a certain specific temperature, the alloy generates a recovery stress that forces it to return to its initial shape. This driving method is simple and easy to implement, and the deformation of the alloy can be regulated only by controlling the environmental temperature. However, there are deficiencies in traditional waste heat recovery devices in terms of energy conversion efficiency, structural complexity, automation level, intermittent waste heat utilization, thermal pollution, scalability, and maintenance cost. Summary of the Invention

[0004] In order to solve the problems of the deficiencies in traditional waste heat recovery devices in terms of energy conversion efficiency, structural complexity, automation level, intermittent waste heat utilization, thermal pollution, scalability, and maintenance cost mentioned above, the present invention hereby provides a comprehensive water body treatment device for waste heat power generation using shape memory alloys. The present invention uses the waste heat of wastewater to drive the deformation of shape memory alloys, thereby driving the power generation element to generate electricity; by utilizing the shape memory effect and temperature-sensitive characteristics of the alloy, the waste heat in high-temperature industrial wastewater is utilized to achieve the conversion of thermal energy into kinetic energy, thereby driving the motor to generate electricity and providing electrical energy.

[0005] The present invention provides a comprehensive water body treatment device for waste heat power generation using shape memory alloys, which specifically includes two discs and a water tank. The two discs are arranged inside the water tank through brackets, and the lower ends of the discs are immersed in water; the two discs are arranged oppositely in a figure-eight shape in the horizontal direction, and are connected by a number of memory alloy springs at the connection positions at the edges of the discs; one end of the water tank is provided with a water inlet, and the other end is provided with a water outlet.

[0006] Furthermore, the immersed area of the disc is less than one-half of the disc.

[0007] Furthermore, a filter cartridge is detachably arranged in the water tank, and the filter cartridge is communicated with the water inlet.

[0008] Furthermore, a solar panel is inclinedly arranged at the upper end of the water tank.

[0009] Furthermore, valves are arranged at the water inlet and the water outlet.

[0010] Furthermore, the shape memory alloy spring is made of Ni-Ti alloy.

[0011] The beneficial effects of the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention are as follows:

[0012] (1) For the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention, through the provided shape memory alloy spring and disc, the heat energy in industrial wastewater is effectively converted into mechanical energy through the shape memory alloy and then into electrical energy, making full use of the waste heat resources in the wastewater, reducing energy waste, having a simple structure, being easy to manufacture and maintain, and reducing the implementation cost.

[0013] (2) For the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention, through the thermosensitive characteristics (shrinking at high temperature and stretching at low temperature) of the shape memory alloy, the device can automatically operate in a cycle without external power input, realizing the automation of waste heat utilization.

[0014] (3) For the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention, the overall scalability and adaptability are strong. If the wastewater temperature is high and the waste heat is not fully utilized, multiple treatment devices can be connected in series to further recover the waste heat and improve the energy utilization efficiency; the thermosensitive characteristics of different shape memory alloys enable it to adapt to wastewaters at different temperatures, and the device can adjust the inclination angle of the disc according to the actual wastewater temperature to optimize the energy conversion efficiency; it can be linked with a quick water change valve through a water level sensor to achieve intermittent operation, complete batch replacement of wastewater, adapt to the intermittent discharge of industrial wastewater and the continuous operation requirements of industrial production lines, and improve the flexibility and applicability of the device.

[0015] (4) For the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention, the contraction and elongation of the shape memory alloy directly drive the disc to rotate, reducing the energy loss during the conversion process and improving the energy conversion efficiency. The device realizes the integration of wastewater treatment and waste heat power generation by recovering the heat energy in the wastewater, reduces the dependence on traditional energy sources, generates electricity and heat simultaneously, reduces carbon emissions, saves energy and reduces emissions, and is green and environmentally friendly, meeting the requirements of environmental protection and sustainable development. Description of the Drawings

[0016] The accompanying drawings, which form a part of this application, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0017] In the accompanying drawings:

[0018] Figure 1 is a schematic three-dimensional structure diagram of a comprehensive water treatment device for waste heat power generation using shape memory alloys according to the present invention;

[0019] Figure 2 is a schematic connection structure diagram of a shape memory alloy spring and a disc of a comprehensive water treatment device for waste heat power generation using shape memory alloys according to the present invention;

[0020] Figure 3 is a schematic structure diagram of a shape memory alloy spring of a comprehensive water treatment device for waste heat power generation using shape memory alloys according to the present invention;

[0021] Wherein: 1 - Shape memory alloy spring one, 2 - Shape memory alloy spring two, 3 - Shape memory alloy spring three, 4 - Shape memory alloy spring four, 5 - Water tank, 6 - Disc one, 7 - Disc two, 8 - Bracket one, 9 - Bracket two, 10 - Water inlet, 11 - Water outlet, 12 - Filter cartridge, 13 - Solar power panel. Detailed implementation manners

[0022] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Specific Embodiment 1: Refer to Figures 1 - 3 Specifically illustrate this embodiment. A comprehensive water body treatment device for waste heat power generation using shape memory alloy described in this embodiment specifically includes two discs and a water tank 5. Disc 1 6 is arranged inside the water tank 5 through support 1 8, and disc 2 7 is arranged inside the water tank 5 through support 2 9. The lower ends of disc 1 6 and disc 2 7 are immersed in water, and the immersed area is less than half of the disc; disc 1 6 and disc 2 7 are arranged oppositely in a V shape in the horizontal direction and are arranged at a certain angle to each other, that is, one side of disc 1 6 and disc 2 7 is close and the other side is far away in the horizontal direction, as Figure 1 and Figure 2 shown; disc 1 6 and disc 2 7 are connected by a number of memory alloy springs, and the connection positions are at the disc edges; hook-up devices are arranged at the four positions of up, down, left, and right of the disc, and the memory alloy springs are connected to the hook-up devices; the memory alloy springs include memory alloy spring 1, memory alloy spring 2, memory alloy spring 3, and memory alloy spring 4, and memory alloy spring 1, memory alloy spring 2, memory alloy spring 3, and memory alloy spring 4 are respectively arranged at the quarter positions of the circumferences of disc 1 6 and disc 2 7; one end of the water tank 5 is provided with a water inlet 10, and the other end is provided with a water outlet 11.

[0027] A filter cartridge 12 is detachably arranged in the water tank 5. The filter cartridge 12 is communicated with the water inlet 10, and an adsorption material can be placed in the filter cartridge 12 for water body purification treatment. A solar power generation panel 13 is inclinedly arranged at the upper end of the water tank 5, so that the water tank 5 is in a semi-closed state to reduce the waste heat loss of wastewater.

[0028] Valves are arranged at the water inlet 10 and the water outlet 11 to control the intermittent passage of high-temperature wastewater.

[0029] The material of the memory alloy spring is a nickel-titanium shape memory alloy with temperature-sensitive characteristics, which can elongate under cooling at normal temperature and can contract and recover to its original length after heating.

[0030] The specific working process of the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention is as follows:

[0031] The shape memory alloy is stretched into a spring-like spiral shape under low temperature conditions. Four alloys with the same length are selected, and the two ends of the springs are respectively fixed at the upper, lower, left, and right positions corresponding to the first disc 6 and the second disc 7. Since one side of the first disc 6 and the second disc 7 is close to each other and the other side is far from each other, one side of the spring is in a compressed state and the other side is in a stretched state. The first disc 6 and the second disc 7 are respectively fixed on the rigid rod support device at the bottom of the water tank 5, and the support is installed at an appropriate position in the water tank so that the shape memory alloy can be stretched and shortened to the greatest extent.

[0032] The high-temperature industrial wastewater enters the water tank 5 from the water inlet 10. The liquid level of the wastewater rises to submerge the fourth shape memory alloy spring 4. When the water level rises to below the second shape memory alloy spring 2 and the third shape memory alloy spring 3, the valve of the water inlet 10 is closed to stop the inflow of wastewater (during this period, the valve of the water outlet has been in a closed state). The first shape memory alloy spring 1 is located in the upper air, the second shape memory alloy spring 2 and the third shape memory alloy spring 3 are located above the liquid level. After the fourth shape memory alloy spring 4 is heated to reach the phase transition temperature, it returns to its original shape and contracts, thereby driving the disc to rotate and move from the lower end of the disc to the side with a smaller distance between the first disc 6 and the second disc 7; the first shape memory alloy spring 1, the second shape memory alloy spring 2, and the third shape memory alloy spring 3 are in contact with air and cooled, losing the function of restoring their original shape and elongating, and sequentially moving from the side with a smaller distance between the first disc 6 and the second disc 7 to the side with a larger distance, driving the disc to rotate. The fourth shape memory alloy spring 4 rotates to the position of the second shape memory alloy spring 2, and the first shape memory alloy spring 1 rotates to the position of the third shape memory alloy spring 3. At this time, the third shape memory alloy spring 3 rotates into the waste liquid and continues to be heated and contracted to drive the disc to rotate. The rotation of the disc drives the generator to generate electricity at the same time. This device can realize the utilization of the heat energy of industrial wastewater, has a simple structure, and is easy to implement. According to the actual contraction and elongation of the alloy, the inclination angle of the disc is determined to make the heat energy of the wastewater be utilized more fully. After a series of processes, the temperature of the wastewater in the water tank 5 decreases, and finally it is discharged uniformly through the water outlet 11. If there is still waste heat that can be utilized after insufficient cooling, one or more treatment devices are connected in series behind the water tank 5. This process realizes the conversion from heat energy to kinetic energy and then to electrical energy, effectively utilizing the waste heat of the wastewater.

[0033] Summarizing the above embodiments, the comprehensive water treatment device for waste heat power generation using shape memory alloy according to the present invention effectively converts the heat energy in industrial wastewater into mechanical energy through the provided shape memory alloy springs and discs, and then into electrical energy, fully utilizing the waste heat resources in the wastewater, reducing energy waste, having a simple structure, being easy to manufacture and maintain, and reducing the implementation cost.

[0034] A comprehensive water treatment device for waste heat power generation using shape memory alloy can automatically operate in a cycle through the temperature-sensitive characteristics (shrinking at high temperature and stretching at low temperature) of the shape memory alloy, without external power input, realizing the automation of waste heat utilization.

[0035] A comprehensive water treatment device for waste heat power generation using shape memory alloy described in the present invention has strong overall scalability and adaptability. If the wastewater temperature is high and the waste heat is not fully utilized, multiple treatment devices can be connected in series to further recover waste heat and improve the energy utilization efficiency. The temperature-sensitive characteristics of different shape memory alloys enable it to adapt to wastewater at different temperatures. The device can adjust the inclination angle of the disc according to the actual wastewater temperature to optimize the energy conversion efficiency. It can be linked with a water level sensor and a quick water change valve to achieve intermittent operation, complete batch replacement of wastewater, and adapt to the intermittent discharge of industrial wastewater and the continuous operation requirements of industrial production lines, improving the flexibility and applicability of the device.

[0036] A comprehensive water treatment device for waste heat power generation using shape memory alloy described in the present invention directly drives the disc to rotate through the contraction and elongation of the shape memory alloy, reducing the loss of energy during the conversion process and improving the energy conversion efficiency. The device realizes the integration of wastewater treatment and waste heat power generation by recovering the heat energy in the wastewater, reducing the dependence on traditional energy sources, co-generating heat and electricity, reducing carbon emissions, saving energy and reducing emissions, being green and environmentally friendly, and meeting the requirements of environmental protection and sustainable development.

[0037] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the invention. It can also be a reasonable combination of the features described in the above embodiments. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated water treatment device for waste heat power generation using shape memory alloy, characterized in that: It includes two discs and a water tank (5). The two discs are arranged inside the water tank (5) through brackets, and the lower ends of the discs are immersed in water. The two discs are arranged oppositely in a V-shape horizontally, and are connected by a number of shape memory alloy springs at the edge of the discs. One end of the water tank (5) is provided with a water inlet (10), and the other end is provided with a water outlet (11).

2. The comprehensive water treatment device for waste heat power generation using shape memory alloy according to claim 1, characterized in that: The immersed area of the disc is less than one half of the disc.

3. The comprehensive water treatment device for waste heat power generation using shape memory alloy according to claim 2, characterized in that: A filter cartridge (12) is detachably arranged in the water tank (5), and the filter cartridge (12) is communicated with the water inlet (10).

4. The integrated water treatment device for waste heat power generation using shape memory alloy according to claim 2, wherein: A solar panel (13) is inclinedly arranged at the upper end of the water tank (5).

5. The comprehensive water treatment device for waste heat power generation using shape memory alloy according to claim 2, characterized in that: Valves are arranged at the water inlet (10) and the water outlet (11).

6. The comprehensive water treatment device for waste heat power generation using shape memory alloy according to claim 2, characterized in that: The shape memory alloy spring is made of Ni-Ti alloy.

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