Tail gas temperature difference power generation device

Abstract

The utility model belongs to the technical field of tail gas power generation, and discloses a tail gas temperature difference power generation device. The multiple edge water cooling boxes are evenly distributed in the circumferential direction of the tail gas pipeline, and the edge water cooling boxes are fixedly connected with the tail gas pipeline; a partition plate is fixedly connected into the side water cooling box and divides the inner space of the side water cooling box into a first cavity and a second cavity, and the first cavity is close to the tail gas pipeline. The thermoelectric power generation pieces are arranged in the first cavity in the length direction of the edge water cooling box at equal intervals. When the tail gas passes through the tail gas pipeline, the driving source drives the cooling water in the side water cooling box to flow, the tail gas has a large amount of heat, the temperature of the thermoelectric power generation piece is increased, meanwhile, the cooling water takes away heat transmitted by the thermoelectric power generation piece, and the cooling effect is achieved, so that the temperature difference exists on the two sides of the thermoelectric power generation piece; and a carrier in the thermoelectric power generation sheet is caused to generate directional movement to form Seebeck electromotive force and current.

Description

Technical Field

[0001] This disclosure belongs to the field of exhaust gas power generation technology, specifically relating to an exhaust gas temperature difference power generation device. Background Technology

[0002] Resource scarcity and energy shortages are global concerns and technological bottlenecks hindering the rapid development of the traditional automobile industry powered by internal combustion engines. Furthermore, the utilization rate of limited automotive fuels (gasoline and diesel) is very low; approximately two-thirds of the energy is dissipated into the air as exhaust heat and mechanical losses. This contradicts the current emphasis on green environmental protection, energy conservation, and emission reduction, necessitating improvements to the traditional internal combustion engine's operating and emission processes, and the development of new energy-saving and emission-reducing mechanisms.

[0003] Traditional automobile exhaust typically only passes through a three-way catalytic converter and a muffler (some mid-to-high-end cars use exhaust turbocharging technology to improve energy efficiency) before being directly emitted into the atmosphere. The temperature of the exhaust gas coming out of the engine can reach 600-800℃, which contains a high amount of heat, and direct emission into the atmosphere results in energy waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this disclosure is to provide a tail gas temperature differential power generation device. While the tail gas passes through the tail gas pipe, the driving source drives the cooling water in the side water-cooled box to flow. The tail gas has a large amount of heat, which increases the temperature of the thermoelectric generator. At the same time, the cooling water carries away the heat transferred by the thermoelectric generator, thus cooling it down. This creates a temperature difference between the two sides of the thermoelectric generator, causing the charge carriers inside the thermoelectric generator to move in a directional manner, forming a Seebeck electromotive force and current.

[0005] The objective of this disclosure can be achieved through the following technical solutions:

[0006] A tail-end temperature differential power generation device, characterized in that it comprises:

[0007] Exhaust pipe;

[0008] The side water-cooled box is provided in a plurality of units, which are evenly distributed along the circumference of the exhaust gas pipe and are fixedly connected to the exhaust gas pipe.

[0009] The side water-cooled box is fixedly connected to a partition, which divides the internal space of the side water-cooled box into a first cavity and a second cavity. The first cavity is close to the exhaust pipe.

[0010] Thermoelectric generators are arranged at equal intervals along the length of the side water-cooled box in the first cavity.

[0011] The principles and technical effects of the above technical solution are as follows:

[0012] As the exhaust gas passes through the exhaust pipe, the drive source drives the cooling water in the side water-cooled box to flow. The exhaust gas has a lot of heat, which increases the temperature of the thermoelectric generator. At the same time, the cooling water carries away the heat transferred by the thermoelectric generator, which plays a role in cooling down. This creates a temperature difference on both sides of the thermoelectric generator, causing the charge carriers inside the thermoelectric generator to move in a directional manner, forming Seebeck electromotive force and current.

[0013] In a preferred embodiment, the present invention can be further configured such that flanges are fixedly connected to both ends of the exhaust pipe.

[0014] In a preferred embodiment, the present invention can be further configured such that: the two ends of the exhaust pipe are fixedly connected to the periphery of the sleeves, the sleeves are threaded with bolts, and the two ends of the side water-cooled box are inserted into the sleeves.

[0015] In a preferred embodiment, the present invention can be further configured such that: the two ends of the side water-cooled box are provided with water inlets and water outlets, and the water inlets and water outlets are connected to the interior of the second cavity.

[0016] In a preferred embodiment, the present invention may be further configured to include a water circulation pipe, the two ends of which are fixedly connected to the two ends of the side water-cooled box, and the water circulation pipe is in communication with the interior of the second cavity.

[0017] In a preferred embodiment, the present invention can be further configured such that: a plurality of recesses are provided on the side of the partition away from the thermoelectric generator, and the distribution of the recesses corresponds to the thermoelectric generator.

[0018] In a preferred embodiment, the present invention may be further configured as follows: it also includes an ultrasonic generator and a transducer, the ultrasonic generator and the transducer are electrically connected, the transducer is mounted on the side water-cooled box, and an amplitude transformer is mounted on the transducer, the amplitude transformer extending into the side water-cooled box.

[0019] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0020] A fixed connection refers to a connection in which parts or components are fixed in place, with no relative movement between them. These connections are divided into two types: detachable and non-detachable.

[0021] (1) Detachable connections use screws, splines, wedges, etc. to fix parts together. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedges) and properly tightened.

[0022] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly is required by forging, sawing, or oxy-acetylene cutting during repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to the process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.

[0023] A threaded connection is a detachable connection in which threaded parts (or the threaded portion of the connected parts) are joined together as one unit.

[0024] A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other.

[0025] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0026] The beneficial effects of this disclosure are:

[0027] As the exhaust gas passes through the exhaust pipe, the drive source drives the cooling water in the side water-cooled box to flow. The exhaust gas has a lot of heat, which increases the temperature of the thermoelectric generator. At the same time, the cooling water carries away the heat transferred by the thermoelectric generator, which plays a role in cooling down. This creates a temperature difference on both sides of the thermoelectric generator, causing the charge carriers inside the thermoelectric generator to move in a directional manner, forming Seebeck electromotive force and current. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this disclosure;

[0030] Figure 2 This is a schematic diagram of the side water-cooled box structure according to an embodiment of the present disclosure. Detailed Implementation

[0031] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0032] In the description of this disclosure, it should be understood that the terms “opening,” “upper,” “lower,” “thickness,” “top,” “middle,” “length,” “inner,” “around,” etc., which indicate orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0033] Based on the concept of this application, combined with Figures 1 to 2 This document describes an embodiment of a tail gas thermal differential power generation device. Specifically, the device is constructed as a split structure, comprising a tail gas duct 1, a side water-cooled box 2, and a thermal differential power generation element 3. Through the cooperation of structures such as the partition 21, the first cavity 22, and the second cavity 23, the tail gas flows through the tail gas duct 1 while the driving source drives the cooling water in the side water-cooled box 2 to flow. The tail gas contains a large amount of heat, which increases the temperature of the thermal differential power generation element 3. At the same time, the cooling water carries away the heat transferred by the thermal differential power generation element 3, thus cooling it down. This creates a temperature difference on both sides of the thermal differential power generation element 3, causing the charge carriers inside the thermal differential power generation element 3 to move in a directional manner, forming a Seebeck electromotive force and current.

[0034] like Figure 1-2 As shown, a tail-end temperature differential power generation device includes:

[0035] Exhaust pipe 1;

[0036] Side water-cooled box 2, several side water-cooled boxes 2 are provided, and several side water-cooled boxes 2 are evenly distributed along the circumference of the exhaust gas pipe 1, and the side water-cooled boxes 2 are fixedly connected to the exhaust gas pipe 1.

[0037] A partition 21 is fixedly connected inside the side water-cooled box 2, which divides the internal space of the side water-cooled box 2 into a first cavity 22 and a second cavity 23. The first cavity 22 is close to the exhaust pipe 1.

[0038] Thermoelectric generator 3 is arranged at equal intervals along the length of the side water-cooled box 2 inside the first cavity 22.

[0039] As the exhaust gas passes through the exhaust gas pipe 1, the driving source drives the cooling water in the side water-cooled box 2 to flow. The exhaust gas has a lot of heat, which increases the temperature of the thermoelectric generator 3. At the same time, the cooling water carries away the heat transferred by the thermoelectric generator 3, which plays a role in cooling down. This creates a temperature difference on both sides of the thermoelectric generator 3, causing the charge carriers inside the thermoelectric generator 3 to move in a directional manner, forming Seebeck electromotive force and current.

[0040] Thermoelectric generation is the phenomenon where electrons in an object move from a high-temperature end to a low-temperature end under temperature difference conditions, generating an electric current. Based on the properties of thermoelectric materials, nodes P and N will generate a thermoelectric electromotive force when the temperatures of the two nodes are different. If the temperature difference between the hot and cold ends is T1-T2=ΔT, then the thermoelectric electromotive force ΔU=αab(T1-T2).

[0041] In one embodiment of this utility model, flanges 11 are fixedly connected to both ends of the exhaust pipe 1. This facilitates connection to an exhaust pipe or exhaust gas treatment device.

[0042] In one embodiment of this utility model, sleeves 12 are fixedly connected to both ends of the exhaust pipe 1, and bolts 13 are threaded onto the sleeves 12. The two ends of the side water-cooled box 2 are inserted into the sleeves 12. When the two ends of the side water-cooled box 2 are inserted into the sleeves 12, the bolts 13 are tightened so that the bolts press against the side water-cooled box 2, thus fixing the side water-cooled box 2 in place.

[0043] In one embodiment of this utility model, the two ends of the side water-cooled box 2 are provided with water inlets 24 and water outlets 25, which are connected to the interior of the second cavity 23. Cooling water enters from the water inlet 24 and flows out from the water outlet 25, carrying away heat and achieving a cooling effect.

[0044] In one embodiment of this invention, a water circulation pipe 4 is further included. Both ends of the water circulation pipe 4 are fixedly connected to both ends of the side water-cooled box 2, and the water circulation pipe 4 communicates with the interior of the second cavity 23. This design allows the cooling water within the side water-cooled box 2 to circulate.

[0045] In one embodiment of this invention, a plurality of recesses 211 are formed on the side of the partition 21 away from the thermoelectric generator 3, and the recesses 211 are distributed in a manner corresponding to the thermoelectric generator 3. The design of the recesses 211 can increase the heat dissipation area and improve the cooling efficiency.

[0046] In one embodiment of this utility model, an ultrasonic generator and a transducer are further included. The ultrasonic generator and the transducer are electrically connected. The transducer is mounted on the side water-cooled box 2, and an amplitude transformer is mounted on the transducer, extending into the side water-cooled box 2. The ultrasonic power supply is commonly referred to as an ultrasonic source or ultrasonic generator, and its function is to convert electrical energy into a high-frequency alternating current signal that matches the ultrasonic transducer. The transducer is a device that converts high-frequency electrical energy into mechanical energy, usually made of piezoelectric ceramics or other magnetostrictive materials. When the transducer generates mechanical vibration, ultrasonic cavitation is generated through the transmission of the amplitude transformer. Ultrasonic cavitation is the main phenomenon generated when ultrasonic waves (a type of mechanical wave with an extremely short wavelength) propagate in a liquid medium, involving a series of physicochemical changes such as the formation, growth, oscillation, and collapse of cavitation bubbles. The size of the acoustic cavitation bubbles is generally 10.-4 The bubble collapse time is in the microsecond range. The instantaneous jet velocity can reach 100 m / s. -1 Local pressures can reach 200 MPa. The ultrasonic cavitation process can also generate significant turbulence, micro-perturbations, and interface effects; the turbulence effect is caused by the macroscopic turbulence of the system induced by the acoustic shock wave, which leads to the thinning of the boundary layer and increases heat transfer efficiency.

[0047] The following description, in conjunction with the accompanying drawings and embodiments, provides a further explanation of the tail-end temperature difference power generation device provided by this utility model.

[0048] A tail-end temperature differential power generation device, comprising:

[0049] Exhaust pipe 1;

[0050] Side water-cooled box 2, several side water-cooled boxes 2 are provided, and several side water-cooled boxes 2 are evenly distributed along the circumference of the exhaust gas pipe 1, and the side water-cooled boxes 2 are fixedly connected to the exhaust gas pipe 1.

[0051] A partition 21 is fixedly connected inside the side water-cooled box 2, which divides the internal space of the side water-cooled box 2 into a first cavity 22 and a second cavity 23. The first cavity 22 is close to the exhaust pipe 1.

[0052] Thermoelectric generator 3 is arranged at equal intervals along the length of the side water-cooled box 2 inside the first cavity 22.

[0053] Flanges 11 are fixedly connected to both ends of the exhaust pipe 1.

[0054] Both ends of the exhaust pipe 1 are fixedly connected to the periphery of the sleeves 12, and bolts 13 are threaded onto the sleeves 12. The two ends of the side water-cooled box 2 are inserted into the sleeves 12.

[0055] The two ends of the side water-cooled box 2 are provided with water inlet 24 and water outlet 25, and the water inlet 24 and water outlet 25 are connected to the inside of the second cavity 23.

[0056] It also includes a water circulation pipe 4, the two ends of which are fixedly connected to the two ends of the side water-cooled box 2, and the water circulation pipe 4 is connected to the inside of the second cavity 23.

[0057] A number of recesses 211 are provided on the side of the partition 21 away from the thermoelectric generator 3, and the distribution of the recesses 211 corresponds to the thermoelectric generator 3.

[0058] It also includes an ultrasonic generator and a transducer. The ultrasonic generator and the transducer are electrically connected. The transducer is installed on the side water-cooled box 2. An amplitude transformer is installed on the transducer and extends into the side water-cooled box 2.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A tail-end temperature differential power generation device, characterized in that, include: Exhaust pipe (1); Side water-cooled box (2), there are several side water-cooled boxes (2), and the several side water-cooled boxes (2) are evenly distributed along the circumference of the exhaust pipe (1), and the side water-cooled boxes (2) are fixedly connected to the exhaust pipe (1). The side water-cooled box (2) is fixedly connected to a partition (21) to divide the internal space of the side water-cooled box (2) into a first cavity (22) and a second cavity (23). The first cavity (22) is close to the exhaust pipe (1). Thermoelectric generator (3) is arranged at equal intervals in the first cavity (22) along the length of the side water-cooled box (2).

2. The tail-end temperature difference power generation device according to claim 1, characterized in that, Flanges (11) are fixedly connected to both ends of the exhaust pipe (1).

3. The tail-end temperature difference power generation device according to claim 2, characterized in that, The exhaust pipe (1) is fixedly connected to the two ends of the periphery with a sleeve (12), and the sleeve (12) is threaded with a bolt (13). The two ends of the side water-cooled box (2) are inserted into the sleeve (12).

4. The tail-end temperature difference power generation device according to claim 1, characterized in that, The side water-cooled box (2) is provided with an inlet (24) and an outlet (25) at both ends, and the inlet (24) and outlet (25) are connected to the interior of the second cavity (23).

5. A tail-end temperature differential power generation device according to claim 4, characterized in that, It also includes a water circulation pipe (4), the two ends of which are fixedly connected to the two ends of the side water-cooled box (2), and the water circulation pipe (4) is connected to the inside of the second cavity (23).

6. A tail-end temperature differential power generation device according to claim 5, characterized in that, The partition (21) has several recesses (211) on one side away from the thermoelectric generator (3), and the recesses (211) are distributed in a position corresponding to the thermoelectric generator (3).

7. A tail-end temperature differential power generation device according to claim 1, characterized in that, It also includes an ultrasonic generator and a transducer. The ultrasonic generator and the transducer are electrically connected. The transducer is installed on the side water-cooled box (2). An amplitude transformer is installed on the transducer and extends into the side water-cooled box (2).

Images