CN204271729U - A kind of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion - Google Patents
A kind of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion Download PDFInfo
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- CN204271729U CN204271729U CN201420869659.6U CN201420869659U CN204271729U CN 204271729 U CN204271729 U CN 204271729U CN 201420869659 U CN201420869659 U CN 201420869659U CN 204271729 U CN204271729 U CN 204271729U
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Abstract
The utility model discloses the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion, comprise thermoelectric converting unit, electric power conversion unit and monitoring unit; The utility model provides the vehicle exhaust temperature difference electricity generation device based on two-stage heat exchanger structure of low temperature thermoelectric unit part in a kind of utilization simultaneously, by warm electric device in the upper and lower surface layout of previous stage heat exchanger, rear stage heat exchanger upper and lower surface arrange low temperature thermoelectric unit part thus under realizing engine full working scope condition of work vehicle exhaust secondary thermoelectricity conversion, improve the regenerative power of vehicle exhaust temperature difference electricity generation device on the one hand, improve the efficiency of vehicle exhaust temperature difference electricity generation device on the other hand.There is clean, efficient, that reliability is strong advantage.
Description
Technical field
The utility model belongs to a kind of vehicle exhaust temperature difference electricity generation device, particularly a kind of tandem vehicle exhaust temperature difference electricity generation device utilizing two-stage heat exchanger structure to carry out thermoelectricity conversion.
Background technology
The fuel oil energy about 30% of orthodox car engine is for driving wheel, the energy of about 40% scatters and disappears in the mode of tail gas waste heat and cooling water, and the thermoelectric generation technology based on thermoelectric device absorbs tail gas waste heat and carries out the important channel that gas-to electricity is raising Fuel Economy.At present, existing vehicle exhaust temperature difference electricity generation device adopts single-stage heat converter structure mostly, and the just most high-temperature resistant value adopted is lower than the cryogenic device of 350 DEG C, carry out tail gas waste heat recovery when can only run under engine low load, the generated output of vehicle exhaust temperature difference electricity generation device and efficiency is lower (tens watts or a few hectowatt) also.If the thermoelectric converting unit that can design secondary transformational structure absorbs tail gas heat quantity when engine full working scope runs, greatly will improve the overall performance of vehicle exhaust temperature difference electricity generation device, thus improve the fuel economy of engine further.
Summary of the invention
To overcome above-mentioned deficiency, the utility model provides the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion.
The technical solution of the utility model is: a kind of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion, comprises thermoelectric converting unit, electric power conversion unit and monitoring unit;
Described thermoelectric converting unit to comprise in engine, engine cool unit, the first heat exchanger, first warm electric device group, the first cooling water tank, the second cooling water tank, the second heat exchanger, the first low temperature thermoelectric unit part group, the second low temperature thermoelectric unit part group, the 3rd cooling water tank, the 4th cooling water tank, radiator, ternary catalyzing unit, muffler in warm electric device group, second; Motor exhaust is connected toward air by the first heat exchanger, the second heat exchanger, ternary catalyzing unit with muffler successively; The upper and lower surface of the first heat exchanger is connected with the hot junction of warm electric device group in electric device group warm in first and second respectively, and in first, warm electric device group is connected with the second cooling water tank with the first cooling water tank respectively with the cold junction of electric device group warm in second; The upper and lower surface of the second heat exchanger is connected with the hot junction of the first low temperature thermoelectric unit part group with the second low temperature thermoelectric unit part group respectively, and the first low temperature thermoelectric unit part group is connected with the 4th cooling water tank with the 3rd cooling water tank respectively with the cold junction of the second low temperature thermoelectric unit part group; The coolant outlet of engine cool unit is divided into two branch roads after radiator, one of them route pipeline communicates with the entrance of the 3rd cooling water tank, the outlet of the 3rd cooling water tank is connected with the entrance of the first cooling water tank, another route pipeline is connected with the entrance of the 4th cooling water tank, the outlet of the 4th cooling water tank is connected with the entrance of the second cooling water tank, and being connected with the entrance of engine cool unit after the outlet of the second cooling water tank is connected with the outlet of the first cooling water tank forms the cooling circuit of thermoelectric converting unit; In first, in warm electric device group, second, in warm electric device group, the first low temperature thermoelectric unit part group and the second low temperature thermoelectric unit part group, the output of all thermoelectric devices carries out the total output of direct current of connecting as whole thermoelectric converting unit;
Described electric power conversion unit comprises voltage sensor V1, current sensor A1, DC/DC, storage battery, administrative unit, the total output of direct current of thermoelectric converting unit is connected with current sensor A1 with after voltage sensor V1 parallel connection, is then connected with the input of DC/DC; The output of described DC/DC is connected with the feeder ear of radiator in vehicle mounted electrical apparatus, thermoelectric converting unit with after storage battery parallel connection; Storage battery is connected with administrative unit by data wire, and DC/DC and administrative unit to be connected with monitoring unit by CAN and to carry out communication;
Described monitoring unit comprises power module, CAN module, A/D modular converter, clock module, D/A output module, I/O output module, microcontroller; Described clock module is connected with microcontroller, and the input of described power module is connected with the output of storage battery in electric power conversion unit, and the output of power module is connected with microcontroller; Described CAN module to be connected with battery management unit by CAN and the DC/DC in electric power conversion unit and to carry out communication; The signal input part of described A/D modular converter is connected with current sensor A1 with voltage sensor V1, and the signal output part of A/D modular converter is connected with microcontroller; The input of described D/A output module is connected with microcontroller, and D/A output module is connected with the signal controlling end of radiator in thermoelectric converting unit; Described I/O output module input is connected with microcontroller, and the output of I/O output module is connected with the switch control terminal of vehicle mounted electrical apparatus.
Preferably, described monitoring unit also comprises sound light alarming circuit, and described sound light alarming circuit is connected with the output of I/O output module.
Preferably, described monitoring unit also comprises SCI module, and described SCI module to be connected with industrial computer by RS232/485 bus and to communicate;
Preferably, described monitoring unit also comprises GPRS module, and described microcontroller to be connected with remote monitoring center by GPRS module and to communicate.
Preferably, described monitoring unit also comprises the LCD module shown in real time for scene.
Technique effect of the present utility model is: the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion take full advantage of based in the prime heat exchanger of warm electric device group, rear class heat exchanger based on low temperature thermoelectric unit part group carries out vehicle exhaust thermo-electric generation, the tail gas waste heat realizing engine full working scope reclaims, substantially increase the generated output of thermoelectric converting unit, reduce the capacity of storage battery, this device utilizes the temporal information of the various parameter of clock module record and state, the information such as various procedure parameter and operating state are sent to remote monitoring center by GPRS module, industrial computer and LCD module is utilized to show in real time, sound and light alarm prompting is carried out when associated components is in abnormal working position, this device intelligence degree is high, real-time, clean and effective, the application scenario that the tail gas waste heat being applicable to various orthodox car engine is recycled and generated electricity.
Accompanying drawing explanation
Fig. 1 is overall structure theory diagram of the present invention;
Fig. 2 is the schematic layout pattern of warm electric device group in first;
Fig. 3 is the schematic layout pattern of warm electric device group in second;
Fig. 4 is the schematic layout pattern of the first low temperature thermoelectric unit part group;
Fig. 5 is the schematic layout pattern of the second low temperature thermoelectric unit part group.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of main part of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion is made up of thermoelectric converting unit, electric power conversion unit and monitoring unit; Be characterized in: thermoelectric converting unit utilizes two-stage heat exchanger and motor exhaust to carry out heat exchange; in two-stage heat exchanger upper and lower surface, low temperature thermoelectric unit part group absorbs tail gas heat quantity, during the cooling water of engine cool unit is given by multiple cooling water tank group, in low temperature thermoelectric unit part group each thermoelectric device cold junction cooling thus build the temperature difference and generate electricity; Electric power conversion unit is powered to each parts of device, and in cascaded structure, the direct current energy that produces of low temperature thermoelectric unit part group converts and to power to vehicle mounted electrical apparatus or charge a battery; The various parameter of monitoring unit monitoring device and state, record their time and date, carries out showing and alarm, and control relevant execution unit.
Thermoelectric converting unit as shown in Figure 1, is made up of warm electric device group, the first cooling water tank, the second cooling water tank, the second heat exchanger, the first low temperature thermoelectric unit part group, the second low temperature thermoelectric unit part group, the 3rd cooling water tank, the 4th cooling water tank, radiator, ternary catalyzing unit, muffler in electric device group warm in engine, cooling unit, the first heat exchanger, first, second, the tail gas of engine leads to air by the first heat exchanger, the second heat exchanger, ternary catalyzing unit and muffler successively, the upper and lower surface of the first heat exchanger is connected with the hot junction of warm electric device group (as shown in Figure 3) in electric device group (as shown in Figure 2) warm in first and second respectively, and in first, warm electric device group is connected with the second cooling water tank with the first cooling water tank respectively with the cold junction of electric device group warm in second, multiple thermoelectric device 1_1 ~ m_n(particularly in first in warm electric device group and second in warm electric device group are all the capable n column distribution of m) cold junction, the upper and lower surface of the second heat exchanger is connected with the hot junction of the first low temperature thermoelectric unit part group (as shown in Figure 4) with the second low temperature thermoelectric unit part group (as shown in Figure 5) respectively, and the first low temperature thermoelectric unit part group is connected with the 4th cooling water tank with the 3rd cooling water tank respectively with the cold junction of the second low temperature thermoelectric unit part group, multiple thermoelectric device 1_1 ~ m_n(particularly in the first low temperature thermoelectric unit part group and the second low temperature thermoelectric unit part group are all the capable n column distribution of m) cold junction, the coolant outlet of engine cool unit is divided into two branch roads after radiator, one of them route pipeline communicates with the entrance of the 3rd cooling water tank, the outlet of the 3rd cooling water tank communicates with the entrance of the first cooling water tank, another route pipeline communicates with the entrance of the 4th cooling water tank, the outlet of the 4th cooling water tank communicates with the entrance of the second cooling water tank, be connected with the entrance of engine cool unit after the outlet of the second cooling water tank communicates with the outlet of the first cooling water tank and form the cooling circuit of thermoelectric converting unit, in first, in warm electric device group, second, in warm electric device group, the first low temperature thermoelectric unit part group and the second low temperature thermoelectric unit part group, the output of all thermoelectric devices carries out the total output of direct current of connecting as whole thermoelectric converting unit,
Electric power conversion unit as shown in Figure 1, comprise voltage sensor V1, current sensor A1, DC/DC, storage battery, administrative unit, the total output of direct current of thermoelectric converting unit is connected with current sensor A1 with after voltage sensor V1 parallel connection, is then connected with the input of DC/DC; The output of described DC/DC is connected with the feeder ear of radiator in vehicle mounted electrical apparatus, thermoelectric converting unit with after storage battery parallel connection; Storage battery is connected with administrative unit, and DC/DC and administrative unit to be connected with monitoring unit by CAN and to communicate;
Monitoring unit as shown in Figure 1, comprises power module, CAN module, A/D modular converter, GPRS module, LCD module, clock module, D/A output module, I/O output module, sound light alarming circuit, SCI module, microcontroller, host computer; Described clock module, LCD module are connected with microcontroller respectively, and the input of power module is connected with the output of storage battery in electric power conversion unit, and the output of power module is connected with microcontroller; CAN module to be connected with battery management unit by CAN and the DC/DC in electric power conversion unit and to carry out communication; The signal input part of A/D modular converter is connected with current sensor A1 with voltage sensor V1, and the signal output part of A/D modular converter is connected with microcontroller; The input of described D/A output module is connected with microcontroller, and D/A output module is connected with the signal controlling end of radiator in thermoelectric converting unit; Described I/O output module input is connected with microcontroller, and the output of I/O output module is connected with the switch control terminal of vehicle mounted electrical apparatus with sound light alarming circuit; Serial communication SCI module is connected with industrial computer by RS232/485 bus; Microcontroller to be connected with remote monitoring center by GPRS module and to communicate.
In embodiment of the present utility model, when the cooling water of cooling unit flows through radiator, the rotation speed of the fan controlled in radiator by D/A output module output voltage signal by the microcontroller (MCU) of monitoring unit is maximum, thus the water temperature of inflow the 3rd cooling water tank and the 4th cooling water tank is dropped to minimum value, then the cooling water flowing out the first cooling water tank and the second cooling water tank converges rear inflow engine cooling unit, ensures the heat balance of its original engine cool unit.
In embodiment of the present utility model, the microcontroller of monitoring unit controls its output voltage and output current by CAN respectively to DC/DC order, when the state-of-charge SOC of storage battery is lower, the microcontroller of monitoring unit controls vehicle mounted electrical apparatus by I/O output module output low level and disconnects, and sends order simultaneously regulate their output voltage accumulators to carry out floating charge by microcontroller, CAN module and CAN to DC/DC; When the SOC of storage battery is higher, if when the power demand of vehicle mounted electrical apparatus is less than the peak power of middle low temperature thermoelectric unit part group of thermoelectric converting unit, the microcontroller of monitoring unit sends its output current of order control by CAN module and CAN to DC/DC makes vehicle mounted electrical apparatus be powered separately by thermoelectric converting unit; When the SOC of storage battery is higher, if when the power demand of vehicle mounted electrical apparatus is greater than the peak power of middle low temperature thermoelectric unit part group of thermoelectric converting unit, the microcontroller of monitoring unit sends its output current size of order control by CAN module and CAN to DC/DC makes vehicle mounted electrical apparatus be powered by thermoelectric converting unit and storage battery shared.
In embodiment of the present utility model, monitoring unit is by the value of A/D modular converter Real-time Collection voltage sensor V1 and current sensor A1, by the time of their changes of clock module record, by the storage battery SOC value that CAN module and CAN reception battery management unit send over, the voltage that DC/DC sends over, the parameters such as the temperature of electric current and switching tube, send the rotating speed of these parameters and radiator by serial communication SCI module and RS232/485 to host computer and show in real time, also carry out scene display in real time by LCD module, comprise the rotating speed to radiator, the voltage and current of the total output of direct current of thermoelectric converting unit, the voltage and current of DC/DC shows in real time.Utilize GPRS module and remote monitoring center to carry out communication simultaneously and send above-mentioned various information, when above-mentioned various parameter exceeds set maximum and minimum value, microcontroller (MCU) drives sound light alarming circuit to carry out alarm by I/O output module.
The content be not described in detail in the utility model specification belongs to the known prior art of this professional domain technical staff.
Claims (5)
1. a tandem vehicle exhaust temperature difference electricity generation device for secondary conversion, is characterized in that: comprise thermoelectric converting unit, electric power conversion unit and monitoring unit;
Described thermoelectric converting unit to comprise in engine, engine cool unit, the first heat exchanger, first warm electric device group, the first cooling water tank, the second cooling water tank, the second heat exchanger, the first low temperature thermoelectric unit part group, the second low temperature thermoelectric unit part group, the 3rd cooling water tank, the 4th cooling water tank, radiator, ternary catalyzing unit and muffler in warm electric device group, second; Motor exhaust is connected toward air by the first heat exchanger, the second heat exchanger, ternary catalyzing unit with muffler successively; The upper and lower surface of the first heat exchanger is connected with the hot junction of warm electric device group in electric device group warm in first and second respectively, and in first, warm electric device group is connected with the second cooling water tank with the first cooling water tank respectively with the cold junction of electric device group warm in second; The upper and lower surface of the second heat exchanger is connected with the hot junction of the first low temperature thermoelectric unit part group with the second low temperature thermoelectric unit part group respectively, and the first low temperature thermoelectric unit part group is connected with the 4th cooling water tank with the 3rd cooling water tank respectively with the cold junction of the second low temperature thermoelectric unit part group; The coolant outlet of engine cool unit is divided into two branch roads after radiator, one of them route pipeline is connected with the entrance of the 3rd cooling water tank, the outlet of the 3rd cooling water tank is connected with the entrance of the first cooling water tank, another route pipeline is connected with the entrance of the 4th cooling water tank, the outlet of the 4th cooling water tank is connected with the entrance of the second cooling water tank, and being connected with the entrance of engine cool unit after the outlet of the second cooling water tank is connected with the outlet of the first cooling water tank forms the cooling circuit of thermoelectric converting unit; In first, in warm electric device group, second, in warm electric device group, the first low temperature thermoelectric unit part group and the second low temperature thermoelectric unit part group, the output of all thermoelectric devices carries out the total output of direct current of connecting as whole thermoelectric converting unit;
Described electric power conversion unit comprises voltage sensor V1, current sensor A1, DC/DC, storage battery, administrative unit, the total output of direct current of thermoelectric converting unit is connected with current sensor A1 with after voltage sensor V1 parallel connection, is then connected with the input of DC/DC; The output of described DC/DC is connected with the feeder ear of radiator in vehicle mounted electrical apparatus, thermoelectric converting unit with after storage battery parallel connection; Storage battery is connected with administrative unit by data wire, and DC/DC and administrative unit to be connected with monitoring unit by CAN and to carry out communication;
Described monitoring unit comprises power module, CAN module, A/D modular converter, clock module, D/A output module, I/O output module, microcontroller; Described clock module is connected with microcontroller, and the input of described power module is connected with the output of storage battery in electric power conversion unit, and the output of power module is connected with microcontroller; Described CAN module to be connected with battery management unit by CAN and the DC/DC in electric power conversion unit and to carry out communication; The signal input part of described A/D modular converter is connected with current sensor A1 with voltage sensor V1, and the signal output part of A/D modular converter is connected with microcontroller; The input of described D/A output module is connected with microcontroller, and D/A output module is connected with the signal controlling end of radiator in thermoelectric converting unit; Described I/O output module input is connected with microcontroller, and the output of I/O output module is connected with the switch control terminal of vehicle mounted electrical apparatus.
2. the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion according to claim 1, it is characterized in that: described monitoring unit also comprises sound light alarming circuit, described sound light alarming circuit is connected with the output of I/O output module.
3. the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion according to claim 1, is characterized in that: described monitoring unit also comprises SCI module, and described SCI module to be connected with industrial computer by RS232/485 bus and to communicate.
4. the tandem vehicle exhaust temperature difference electricity generation device of a kind of secondary conversion according to claim 1, it is characterized in that: described monitoring unit also comprises GPRS module, described microcontroller to be connected with remote monitoring center by GPRS module and to communicate.
5. according to claim 1, it is characterized in that: described monitoring unit also comprises the LCD module shown in real time for scene.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420869659.6U CN204271729U (en) | 2014-12-31 | 2014-12-31 | A kind of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion |
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| CN201420869659.6U CN204271729U (en) | 2014-12-31 | 2014-12-31 | A kind of tandem vehicle exhaust temperature difference electricity generation device of secondary conversion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186926A (en) * | 2015-09-30 | 2015-12-23 | 广东雷子克热电工程技术有限公司 | Air-cooled low temperature waste heat generator |
| CN105587426A (en) * | 2015-12-15 | 2016-05-18 | 湖北工业大学 | Thermoelectric conversion system capable of keeping engine heat and backpressure balanced and monitoring method |
-
2014
- 2014-12-31 CN CN201420869659.6U patent/CN204271729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186926A (en) * | 2015-09-30 | 2015-12-23 | 广东雷子克热电工程技术有限公司 | Air-cooled low temperature waste heat generator |
| CN105587426A (en) * | 2015-12-15 | 2016-05-18 | 湖北工业大学 | Thermoelectric conversion system capable of keeping engine heat and backpressure balanced and monitoring method |
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Granted publication date: 20150415 Termination date: 20171231 |