Self-cooling type SMA crank heat engine waste heat recovery device

Abstract

The utility model discloses a self -cooling type SMA crank heat engine waste heat recovery device, including self -cooling type SMA crank heat engine body, the waste gas pipe is inserted on the air inlet pipe of self -cooling type SMA crank heat engine body, be provided with connecting mechanism between the left -hand end of waste gas pipe and the air inlet pipe of self -cooling type SMA crank heat engine body, the solenoid valve one is installed on the air inlet pipe of self -cooling type SMA crank heat engine body, the regulating valve and temperature sensor are installed on the waste gas pipe, the bottom of waste gas pipe is connected with the catheter, the bottom of catheter installs the fan, installs the check valve on the catheter. The utility model discloses can according to the temperature of waste gas, carries out the self -adaptation adjustment to the waste gas temperature, lets the waste gas temperature that enters the self -cooling type SMA crank heat engine body inside keep in proper interval, and then effectively avoids the waste gas temperature overheating, causes the self -cooling type SMA crank heat engine body work to appear the situation of problem.

Description

Technical Field

[0001] This utility model relates to a waste heat recovery device for a self-cooling SMA crankshaft heat engine. Background Technology

[0002] The self-cooled SMA (shape memory alloy) crank heat engine waste heat recovery device is an innovative energy recovery system that utilizes the thermoelastic martensitic phase transformation properties of shape memory alloy (SMA) to convert industrial waste heat or environmental waste heat into mechanical energy or electrical energy.

[0003] When a self-cooled SMA crank heat engine recovers and utilizes industrial waste heat or environmental residual heat, the intake pipe of the self-cooled SMA crank heat engine is connected to the pipe used for industrial waste heat (such as hot exhaust gas), so that the exhaust gas can be utilized. However, the temperature of industrial waste heat is prone to being too high. When the self-cooled SMA crank heat engine is working, the shape memory effect will be partially lost, and it may even cause irreversible damage to the material. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a self-cooling SMA crank heat engine waste heat recovery device to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A waste heat recovery device for a self-cooled SMA crankshaft engine includes a self-cooled SMA crankshaft engine body. An exhaust pipe is inserted through the intake pipe of the self-cooled SMA crankshaft engine body. A connecting mechanism is provided between the left end of the exhaust pipe and the intake pipe of the self-cooled SMA crankshaft engine body. A solenoid valve is installed on the intake pipe of the self-cooled SMA crankshaft engine body. A regulating valve and a temperature sensor are installed on the exhaust pipe. A conduit is connected to the bottom of the exhaust pipe. A fan is installed at the bottom end of the conduit. A one-way valve is installed on the conduit. A controller for controlling the opening and closing of the solenoid valve and the regulating valve is installed on the front of the exhaust pipe. A comparison module, a database module, and a frequency converter are installed on the front of the exhaust pipe. The output of the temperature sensor is connected to the comparison module. The output of the database module is connected to the comparison module. The output of the comparison module is connected to the controller. The output of the controller is connected to the frequency converter. The output of the frequency converter is connected to the fan.

[0007] As a further description of the above technical solution:

[0008] The connecting mechanism includes two flanges. The inner sides of the two flanges are fixedly connected to the left end of the exhaust pipe and the intake pipe of the self-cooled SMA crank heat engine body, respectively. Both flanges are provided with through holes, and a screw is provided between two adjacent through holes. A nut is threadedly connected to the right end of the screw.

[0009] As a further description of the above technical solution:

[0010] A filter plate is fixedly connected to the inner wall of the exhaust pipe, and a sewage pipe is connected to the bottom of the exhaust pipe. A second solenoid valve is installed on the sewage pipe, and the input end of the second solenoid valve is connected to the controller signal.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the sewage pipe is fitted with an installation ring that is threadedly connected to it, and a filter bag is fixedly connected to the bottom of the installation ring.

[0013] As a further description of the above technical solution:

[0014] An electric push rod is fixedly connected to the top of the exhaust pipe. The input end of the electric push rod is connected to the controller signal. The telescopic end of the electric push rod passes through and extends into the interior of the exhaust pipe. A cleaning brush is fixedly connected to the telescopic end of the electric push rod. The left side of the cleaning brush is in contact with the filter plate.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution can adaptively adjust the exhaust gas temperature based on the exhaust gas temperature, keeping the exhaust gas temperature inside the self-cooled SMA crank engine body within a suitable range, thereby effectively preventing the exhaust gas temperature from overheating and causing operational failures in the SMA crank engine body. Attached Figure Description

[0017] Figure 1 One of the perspective views of this utility model;

[0018] Figure 2 This is a second perspective view of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged view of part A in the middle.

[0021] Explanation of the labels in the diagram:

[0022] 1. Self-cooled SMA crank heat engine body; 2. Exhaust pipe; 3. Connecting mechanism; 301. Flange; 302. Through hole; 303. Screw; 304. Nut; 4. Solenoid valve one; 5. Regulating valve; 6. Temperature sensor; 7. Conduit; 8. Fan; 9. Check valve; 10. Controller; 11. Comparison module; 12. Database module; 13. Frequency converter; 14. Filter plate; 15. Sewage pipe; 16. Solenoid valve two; 17. Mounting ring; 18. Filter bag; 19. Electric push rod; 20. Cleaning brush. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0024] Please see Figures 1-4 In this utility model: a waste heat recovery device for a self-cooled SMA crankshaft engine includes a self-cooled SMA crankshaft engine body 1, an exhaust pipe 2 inserted through the intake pipe of the self-cooled SMA crankshaft engine body 1, a connecting mechanism 3 between the left end of the exhaust pipe 2 and the intake pipe of the self-cooled SMA crankshaft engine body 1, a solenoid valve 4 installed on the intake pipe of the self-cooled SMA crankshaft engine body 1, a regulating valve 5 and a temperature sensor 6 installed on the exhaust pipe 2, a conduit 7 connected to the bottom of the exhaust pipe 2, and a fan 8 installed at the bottom end of the conduit 7. A one-way valve 9 is installed on the duct 7. A controller 10 for controlling the opening and closing of the solenoid valve 4 and the regulating valve 5 is installed on the front of the exhaust pipe 2. A comparison module 11, a database module 12 and a frequency converter 13 are installed on the front of the exhaust pipe 2. The output of the temperature sensor 6 is connected to the comparison module 11. The output of the database module 12 is connected to the comparison module 11. The output of the comparison module 11 is connected to the controller 10. The output of the controller 10 is connected to the frequency converter 13. The output of the frequency converter 13 is connected to the fan 8.

[0025] In this invention, during use, industrial waste heat (natural gas generator exhaust gas) enters the intake pipe of the self-cooled SMA crankshaft engine body 1 from the exhaust pipe 2. The exhaust gas then enters the interior of the self-cooled SMA crankshaft engine body 1 from the intake pipe, where it comes into contact with the heat exchange device structure inside the self-cooled SMA crankshaft engine body 1. The self-cooled SMA crankshaft engine body 1 then utilizes the heat in the exhaust gas, thereby achieving energy recovery. Before the exhaust gas enters the interior of the self-cooled SMA crankshaft engine body 1, the flow rate of the exhaust gas can be controlled by the regulating valve 5. By turning on the fan 8, ambient air can be gathered into the exhaust gas, thereby achieving the effect of cooling the high-temperature exhaust gas and keeping the temperature of the exhaust gas entering the self-cooled SMA crankshaft engine body 1 within a suitable range, thus avoiding overheating of the exhaust gas and causing problems with the operation of the self-cooled SMA crankshaft engine body 1.

[0026] Database module 12 stores the adjustment values ​​of regulating valve 5 and fan 8 for different exhaust gas temperature scenarios, so as to control the amount of high-temperature exhaust gas entering and the amount of ambient air input by fan 8, and adjust the exhaust gas temperature to a suitable temperature.

[0027] In actual operation, the temperature of the exhaust gas is detected by temperature sensor 6. The temperature detected by temperature sensor 6 is sent to comparison module 11. Comparison module 11 compares the detected data with the data stored in database module 12 to find the corresponding data at the current temperature. Comparison module 11 sends the adjustment values ​​of regulating valve 5 and fan 8 at the current exhaust gas temperature to controller 10. Controller 10 controls regulating valve 5 to change the amount of high-temperature exhaust gas entering based on the data sent by comparison module 11. At the same time, controller 10 sends a signal to inverter 13, which turns on fan 8 at a specified power to control the amount of ambient air entering. After the ambient air mixes with the high-temperature exhaust gas, the high-temperature exhaust gas is cooled down, keeping the temperature of the exhaust gas entering the self-cooled SMA crankshaft engine body 1 within a suitable range. This avoids overheating of the exhaust gas, which could cause problems with the operation of the self-cooled SMA crankshaft engine body 1, thus achieving adaptive control of the exhaust gas temperature.

[0028] Please see Figures 1-4 The connecting mechanism 3 includes two flanges 301. The inner sides of the two flanges 301 are fixedly connected to the left end of the exhaust pipe 2 and the intake pipe of the self-cooled SMA crank heat engine body 1, respectively. Both flanges 301 are provided with through holes 302. A screw 303 is provided between two adjacent through holes 302. A nut 304 is threadedly connected to the right end of the screw 303.

[0029] In this utility model, the screw 303 and the nut 304 work together to fix the two flanges 301, thereby realizing the connection between the exhaust pipe 2 and the inlet pipe of the self-cooled SMA crank heat engine body 1.

[0030] Please see Figures 1-3 The inner wall of the exhaust pipe 2 is fixedly connected to a filter plate 14, and the bottom of the exhaust pipe 2 is connected to a drain pipe 15. A solenoid valve 16 is installed on the drain pipe 15, and the input end of the solenoid valve 16 is connected to the controller 10.

[0031] In this invention, the filter plate 14 can filter particulate matter in the exhaust gas, thereby effectively preventing the particulate matter in the exhaust gas from damaging the interior of the self-cooled SMA crank heat engine body 1. When the self-cooled SMA crank heat engine body 1 is stopped, the air can be blocked from entering the interior of the self-cooled SMA crank heat engine body 1 by closing the solenoid valve 1. Then, the regulating valve 5 is closed, and the solenoid valve 2 16 and the fan 8 are turned on. After the fan 8 is turned on, air will be input into the exhaust pipe 2. The air will pass through the filter plate 14 in the reverse direction and be discharged through the drain pipe 15. When the air passes through the filter plate 14 in the reverse direction, the filter plate 14 can be backflushed and cleaned, thereby achieving the purpose of cleaning the filter plate 14.

[0032] Please see Figures 1-3 The bottom end of the sewage pipe 15 is fitted with an installation ring 17 that is threadedly connected to it, and a filter bag 18 is fixedly connected to the bottom of the installation ring 17.

[0033] In this invention, the mounting ring 17 can fix the filter bag 18, and the filter bag 18 can filter and collect the impurities backwashed. The user can remove the filter bag 18 for cleaning by rotating the mounting ring 17 periodically.

[0034] Please see Figures 1-3 The exhaust pipe 2 is fixedly connected to an electric push rod 19. The input end of the electric push rod 19 is connected to the controller 10. The telescopic end of the electric push rod 19 passes through and extends into the interior of the exhaust pipe 2. The telescopic end of the electric push rod 19 is fixedly connected to a cleaning brush 20. The left side of the cleaning brush 20 is in contact with the filter plate 14.

[0035] In this invention, during the cleaning of the filter plate 14, the electric push rod 19 is activated to drive the cleaning brush 20 to descend. After the cleaning brush 20 descends, it slides along the surface of the filter plate 14, thereby achieving the effect of assisting in the cleaning of the filter plate 14 and improving the cleaning effect of the filter plate 14.

[0036] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A waste heat recovery device for a self-cooled SMA crank engine, comprising a self-cooled SMA crank engine body (1), characterized in that: An exhaust pipe (2) is inserted through the intake pipe of the self-cooled SMA crank heat engine body (1). A connecting mechanism (3) is provided between the left end of the exhaust pipe (2) and the intake pipe of the self-cooled SMA crank heat engine body (1). A solenoid valve (4) is installed on the intake pipe of the self-cooled SMA crank heat engine body (1). A regulating valve (5) and a temperature sensor (6) are installed on the exhaust pipe (2). A conduit (7) is connected to the bottom of the exhaust pipe (2). A fan (8) is installed at the bottom end of the conduit (7). A one-way valve (9) is installed on the conduit (7). The front end of the exhaust pipe (2) A controller (10) is installed on the front of the exhaust pipe (2) to control the opening and closing of the solenoid valve (4) and the regulating valve (5). A comparison module (11), a database module (12) and a frequency converter (13) are installed on the front of the exhaust pipe (2). The output end of the temperature sensor (6) is connected to the comparison module (11) by signal. The output end of the database module (12) is connected to the comparison module (11) by signal. The output end of the comparison module (11) is connected to the controller (10) by signal. The output end of the controller (10) is connected to the frequency converter (13) by signal. The output end of the frequency converter (13) is connected to the fan (8) by signal.

2. The waste heat recovery device for a self-cooling SMA crankshaft engine according to claim 1, characterized in that: The connecting mechanism (3) includes two flanges (301). The inner sides of the two flanges (301) are fixedly connected to the left end of the exhaust pipe (2) and the intake pipe of the self-cooled SMA crank heat engine body (1), respectively. Both flanges (301) are provided with through holes (302). A screw (303) is provided between two adjacent through holes (302). The right end of the screw (303) is fitted with a nut (304) that is threadedly connected to it.

3. The waste heat recovery device for a self-cooling SMA crankshaft engine according to claim 1, characterized in that: A filter plate (14) is fixedly connected to the inner wall of the exhaust pipe (2), and a sewage pipe (15) is connected to the bottom of the exhaust pipe (2). A solenoid valve (16) is installed on the sewage pipe (15), and the input end of the solenoid valve (16) is connected to the controller (10) via signal.

4. The waste heat recovery device for a self-cooling SMA crankshaft engine according to claim 3, characterized in that: The bottom end of the sewage pipe (15) is fitted with an installation ring (17) that is threadedly connected to it, and a filter bag (18) is fixedly connected to the bottom of the installation ring (17).

5. The waste heat recovery device for a self-cooling SMA crankshaft engine according to claim 3, characterized in that: An electric push rod (19) is fixedly connected to the top of the exhaust pipe (2). The input end of the electric push rod (19) is connected to the controller (10) via a signal. The telescopic end of the electric push rod (19) passes through and extends into the interior of the exhaust pipe (2). A cleaning brush (20) is fixedly connected to the telescopic end of the electric push rod (19). The left side of the cleaning brush (20) is in contact with the filter plate (14).

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