CN203308553U

CN203308553U - Waste heat recycling device utilizing automobile exhaust

Info

Publication number: CN203308553U
Application number: CN2013203601519U
Authority: CN
Inventors: 高志男
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-21
Filing date: 2013-06-21
Publication date: 2013-11-27
Anticipated expiration: 2023-06-21

Abstract

A waste heat recycling device utilizing automobile exhaust belongs to the technical field of waste heat recycling and is mainly used for recovering waste heat of automobile exhaust to be used for low-temperature start of automobiles, particularly large diesel vehicles. The waste heat recycling device is provided with a heat collector (10) capable of being mounted on a tail gas discharge pipe, and a thermal storage heat exchanger (7) with a phase-change thermal storage material (32) mounted therein, wherein heat transfer oil (14) between the heat collector (10) and the thermal storage heat exchanger (7) is a circulatory heat conducting working medium; the thermal storage heat exchanger (7) transmits heat to the outside through internal heat exchange units via different heat conducting working media and different circulation pipelines, and the heat is circularly used for heating objects and subjected to centralized control. The waste heat recycling device utilizing automobile exhaust can successfully complete low-temperature start of an engine and greatly reduce abrasion caused during low-temperature start of the engine, has the advantages of energy saving, environmental friendliness, easiness in manufacture, low cost and convenience in installation and use, does not influence the original automobile design, and facilitates standard and industrial production.

Description

The heat recovery device of vehicle exhaust

Technical field

The invention belongs to the heat recovery technical field, relate to the heat recovery device of vehicle exhaust.

Background technique

The tail gas of motor vehicle emission, its temperature can be up to 250 ℃, therefore, and a large amount of waste heat of having drained in exhaust emissions, this waste heat derives from fuel consume, and total amount is huge, therefore namely consumed the energy, be unfavorable for again environmental protection, special, specificity in view of automobilism, the discontinuity of its exhaust emissions, uncertain and unstability, make how the waste heat of vehicle exhaust recycled and seemed ignorant, and also there are no the heat recovery technology of vehicle exhaust, emerge so far.

Summary of the invention

The technical problem solved:

Attribute for residual heat of tail gas of automobile, adopt thermal-arrest, accumulation of heat, heat exchange utilization to combine, configure the transmission circulatory system of special heat-transfer working medium, and be mainly used in automobile---the cold-starting of diesel-oil vehicle especially, can overcome existing electric heating and solve the deficiency that automobile starting at low temp exists, as: power consumption, and only limit to pre-heating oil; Can reclaim the waste heat of vehicle exhaust, in order to the problem of the cold-starting that solves automobile, the wearing and tearing that in the time of can also alleviating automobile starting at low temp greatly, motor produces, i.e. energy-conservation environmental protection again.

The technological scheme adopted:

The heat recovery device of vehicle exhaust, include the heat collector of outer insulation, the accumulation of heat heat exchanger of holding concurrently, the heat transmission of heat-conducting work medium, the pipeline circulatory system and regulator control system, it is characterized in that: heat collector is for also reclaiming the heat collector of using waste heat from tail gas in the tail gas discharging pipe that can be contained in automobile, its concrete structure is, has the thermal-arrest housing with central outlet pipe, the two ends of central authorities' outlet pipe have respectively tail gas and advance, outgoing interface, be positioned on the outer wall of central outlet pipe of thermal-arrest housing and have radiating fin, falling heat-transfer oil in the thermal-arrest housing, on the thermal-arrest housing, be equipped with for conduction oil circulation externally the first import of transmission heat, the first outlet, the hold concurrently concrete structure of heat exchanger of accumulation of heat is, has housing, in it, be full of phase change heat storage material, and the temp-sensitive apparatus with interlocking mechanism is housed, in it, also be equipped with and take the heat conductive tube of conduction oil as working medium transmission heat, and supporting the second import be connected on housing arranged, the second outlet, at heat collector and accumulation of heat, hold concurrently between heat exchanger, have for conduction oil and circulate and transmit the pipe-line system of heat, separate heat exchange unit also is housed in housing, each heat exchange unit has respectively the import be connected on housing, outlet, heat-conducting work medium in each heat exchange unit can pass through respectively its corresponding import, outlet and corresponding independent loops pipeline, in corresponding independently heat exchange unit, circulate, and externally transmit heat be used to heating object by circulation loop.

Beneficial effect:

The heat recovery device of vehicle exhaust, can effectively and efficiently reclaim the waste heat of vehicle exhaust and be stored in accumulation of heat by heat collector and hold concurrently in heat exchanger, simultaneously can hold concurrently the external quantity of heat given up of heat exchanger be used to heating object by accumulation of heat again, as cooling water, machine oil, fuel oil and air, and the heating domestic water etc., the centralized control panel of regulator control system is located on driving console, the driver when the cold-starting automobile, choice for use easily and fast; Can substitute electric heating fully; Motor Vehicle---especially during the diesel-oil vehicle cold-starting, major cycle by machine oil can will pump into the main oil gallery of motor and enter each friction pair through the machine oil of preheating, set up oil pressure, therefore, can not only be conducive to energy saving, can also alleviate greatly the startup wearing and tearing of motor, thereby extend the working life of motor; Energy-conserving and environment-protective, package unit is simple in structure, compact, easily making, and long service life is easy to install, does not affect former car design, and is convenient to standardization, industrialization production, and prospect is considerable.

The accompanying drawing explanation:

Fig. 1, general structure schematic diagram;

The structural representation of Fig. 2, heat collector 10;

The hold concurrently structural representation of heat exchanger 7 of Fig. 3, accumulation of heat;

The structural representation of the radiating fin 13 of dress on Fig. 4, central outlet pipe 12;

The hold concurrently structural representation of the heat conductive tube 33 in the housing 31 of heat exchanger 7 of Fig. 5, accumulation of heat.

Embodiment

Further explanation in detail by reference to the accompanying drawings, in figure, arrow is shown the direction that flowing medium flows;

As shown in Fig. 1～5, the heat recovery device of vehicle exhaust, include the heat collector of outer insulation, the accumulation of heat heat exchanger of holding concurrently, the heat transmission of heat-conducting work medium, the pipeline circulatory system and regulator control system, described heat collector is for also reclaiming the heat collector 10 of using waste heat from tail gas in the tail gas discharging pipe that can be contained in automobile, its concrete structure is, has the thermal-arrest housing 11 with central outlet pipe 12, the two ends of central authorities' outlet pipe 12 have respectively tail gas and advance, outgoing interface, in order to heat collector 10 is contained in easily in the discharge pipe of vehicle exhaust, be positioned on the outer wall of central outlet pipe 12 of thermal-arrest housing 11 and have radiating fin 13, the interior falling heat-transfer oil 14 of thermal-arrest housing 11, on thermal-arrest housing 11, be equipped with for conduction oil 14 circulations externally the first import 29 of transmission heat, the first outlet 30, the hold concurrently concrete structure of heat exchanger 7 of accumulation of heat is, has housing 31, in it, be full of phase change heat storage material 32, and the temp-sensitive apparatus 50 with interlocking mechanism is housed, in it, also be equipped with and take the heat conductive tube 33 of conduction oil 14 as working medium transmission heat, and supporting the second import 34 be connected on housing 31 arranged, the second outlet 35, at heat collector 10 and accumulation of heat, hold concurrently between heat exchanger 7, have for conduction oil 14 and circulate and transmit the pipe-line system of heat, separate heat exchange unit also is housed in housing 31, each heat exchange unit has respectively the import be connected on housing 31, outlet, heat-conducting work medium in each heat exchange unit can pass through respectively its corresponding import, outlet and corresponding independent loops pipeline, in corresponding independently heat exchange unit, circulate, and externally transmit heat be used to heating object by circulation loop.

Heat-conducting work medium in described each heat exchange unit, generally be corresponding heating object.

As shown in Figure 1, describedly for conduction oil 14, circulate and the structure of transmitting the pipe-line system of heat is, between the second import 34 of heat exchanger 7 is held concurrently in the first outlet 30 of heat collector 10 and accumulation of heat, the first one-way valve 15 is housed; In the accumulation of heat priority between the second outlet 35 and first import 29 of heat collector 10 of heat exchanger 7 of holding concurrently, the first solenoid valve 17 and the defeated pump 16 of the first tooth are housed successively.

As shown in Figure 1, the heat exchange unit that described accumulation of heat is held concurrently in heat exchanger 7 be used to the structure of each corresponding independent loops pipeline of heating object is, circulation loop to the cooling water heating is, the water inlet of the first heat exchange unit 36 that the interior cooling water of housing 31 is used is connected to the thermostat place coolant outlet 1 of motor by the 3rd solenoid valve 6, the water out of the first heat exchange unit 36 connects the first two-position three-way valve 4 by the second solenoid valve 5, the one position is called the major cycle of cooling water by the first threeway 28，Ci road circulation on the pump intake of the second one-way valve 2 sending and receiving motivations; The another one of the first two-position three-way valve 4 successively connects by water pump 3, the 3rd one-way valve 26 the reserved opening 27，Ci road is communicated with water-cooling channel in engine block and circulates and be called the short circle of cooling water; The major cycle of cooling water is from the former cooling water recirculation system of motor, extracting part hot water out, without water cooler, directly go the first heat exchange unit 36 to carry out after heat recovery heat store, the unit fixed on water pump suction that directly postbacks motivation enters motor, while being exclusively used in special circumstances, reclaim and store cooling water heat, the short circle of cooling water can directly pump into motor by the cooling water after the first heat exchange unit 36 preheatings, in order to improve the bulk temperature of engine body, be beneficial to the cold-starting motor;

Circulation loop to machine oil heating is, the machine oil import of the second heat exchange unit 37 that housing 31 inner engine oils are used is successively by the first port connection 22 with net-filter assembly in the oil pan of the 4th solenoid valve 50, the second gear pump 21 sending and receiving motivations, the machine oil outlet of the second heat exchange unit 37 connects the second two-position three-way valve 18 by the 5th solenoid valve 51, a priority of the second two-position three-way valve 18 is called the major cycle of machine oil by the 3rd port connection 25，Ci road circulation in oil filter 19, the 4th one-way valve 24 sending and receiving motivation oil radiator imports, the another one of the second two-position three-way valve 18 circulates and is called the short circle of machine oil by the second port connection 23，Ci road with net-filter assembly in the oil pan of the 3rd one-way valve 20 sending and receiving motivations, the short circle of machine oil can pump into the low temperature trapped fuel in oil pan the second heat exchange unit 37 and carry out preheating, with the major cycle of machine oil, pump into the main oil gallery of motor and enter each friction pair by the machine oil after preheating and through the second heat exchange unit (37) more afterwards, and can set up oil pressure and the temperature that improves engine body, thereby can alleviate greatly the wearing and tearing of engine cold-starting, improve its working life, the major cycle of machine oil simultaneously, can also be under special circumstances, by Motor Vehicle in service heated up and entered the second heat exchange unit 37 without cooling heat engine oil pump carry out heat recovery heat and store stand-by,

Circulation loop to fuel Heating is, the fuel inlet of the 3rd heat exchange unit 38 that the interior fuel oil of housing 31 is used is by the second threeway 40 on the oil outlet tube of Three gear pump 41 connected tanks 46, the fuel outlet of the 3rd heat exchange unit 38 connects the 3rd two-position three-way valve 42, return tube the 4th port connection 45，Ci road circulation of one position connected tank 46 is called the short circle of fuel oil; The another one of the 3rd two-position three-way valve 42, connect the 4th two-position three-way valve 44 by the 5th one-way valve 43, and this valve is serially connected in the oil feed line of oil outlet tube of fuel tank 46, and be called the major cycle of fuel oil with the second threeway 40 ，Ci road circulation that links together; The short circle of fuel oil can pump into the low temperature fuel oil in fuel tank the 3rd heat exchange unit 38 and carry out preheating, the major cycle of fuel oil can pump into the fuel feed pipe-line system in advance by the fuel oil after the short circle preheating of fuel oil, the oil feed line system is carried out to preheating, be conducive to the cold-starting motor;

Circulation loop to air heating is, the air intlet of the 4th heat exchange unit 39 that the interior air of housing 31 is used sucks cool airs by blower fan 47, and the air outlet slit of the 4th heat exchange unit 39 accesses operator cabin or compartment 48, will after the cool air preheating, warm oneself.

Can also be provided for the corresponding heat exchange unit of other heating objects (as domestic water), and configure corresponding independent loops pipeline, externally transmit heat and heat object for other.

Described heating object is heated object, arranged dividing of direct object, indirect object, described heat-conducting work medium is direct object, above-mentioned related cooling water, machine oil, fuel oil and air, be heated direct object, related engine body, domestic water, compartment are heated indirect object.Cooling water can be also cooling liquid.

As shown in Figure 4: the structure of the radiating fin 13 had on the outer wall of the central outlet pipe 12 in heat collector 10 is, as shown in figure (a), it is the screw piece type, screw piece is welded on the outer wall of central outlet pipe 12 according to the axial screw formula of central outlet pipe 12, as shown in figure (b), be perhaps thorn sheet type, the thorn sheet is welded on the outer wall of central outlet pipe 12 according to the cloth formula between circumferential rule that axially reaches of central outlet pipe 12.

As shown in Figure 5, the hold concurrently structure of the in-built heat conductive tube 33 of heat exchanger 7 of accumulation of heat is as shown in figure (c), be spiral cast, or be coiler-type if schemed as shown in (d).

The accumulation of heat structure of the in-built heat exchange unit of heat exchanger 7 of holding concurrently, also as shown in Figure 5, be spiral cast, or be coiler-type; The structure of each heat exchange unit is identical or different.

As shown in Figure 1, accumulation of heat is held concurrently in heat exchanger 7 temp-sensitive apparatus 50 and electric heater 8 also is housed, temp-sensitive apparatus 50 simultaneously with the first gear pump 16 and the first solenoid valve 17 reciprocal interlockings together; When temperature reached and presets temperature in heat exchanger 7 is held concurrently in accumulation of heat, temp-sensitive apparatus 50 actions were automatically closed the first solenoid valve 17 simultaneously and are stopped the running of the first gear pump 16; The described maximum temperature that presets is 100 ℃; Electric heater 8 is standby heat source, and after the long-term stoppage in transit of Motor Vehicle, opening electric heater 8 provides heat to solve cold-starting; Two-position three-way valve is automatically controlled.

Described regulator control system is, accumulation of heat is held concurrently in heat exchanger 7 temp-sensitive apparatus 50 with interlocking mechanism is housed, and according to presetting temperature, automatically controls simultaneously the operation of the first gear pump 16 and the first solenoid valve 17; Two-position three-way valve, solenoid valve and gear pump are carried out to centralized control, and according to selecting the heating object, and regulate and control the operation of corresponding independent loops pipeline; Corresponding centralized control panel is located on driving console, on centralized control panel, has corresponding electrical behavior switch, tutorial light and temperature indicator.

During application (ato unit under low temperature)

1, check at first whether the temperature that accumulation of heat holds concurrently in heat exchanger 7 is normal;

2, can start simultaneously cooling water, machine oil, fuel oil and warm braw, cooling water is always with partial circulation operation; Full circulation operation after the first short circle of machine oil, fuel oil, after coolant water temperature reaches certain altitude, and engine oil pressure sets up, and ato unit, stop cooling water, oil preheating afterwards;

3, engine running, about 10 minutes, stops fuel Heating and gets final product.

Conduction oil 14 is selected conduction oil YD300～YD that the glad petrochemical industry of Beijing swallow Co., Ltd produces～350 series product, and 300～345 ℃ of maximum operation (service) temperatures, solidifying point are less than-20 ℃, are less than-35 ℃.

Phase change heat storage material 32 is selected Beijing just triumphant great achievement science and technology limited Company product E SM-56, phase transition temperature 56-68 ℃, 130 ℃ of permissive temperatures.

Claims

1. the heat recovery device of vehicle exhaust, include the heat collector of outer insulation, the accumulation of heat heat exchanger of holding concurrently, the heat transmission of heat-conducting work medium, the pipeline circulatory system and regulator control system, it is characterized in that: heat collector is for also reclaiming the heat collector of using waste heat from tail gas in the tail gas discharging pipe that can be contained in automobile, its concrete structure is, has the thermal-arrest housing with central outlet pipe, the two ends of central authorities' outlet pipe have respectively tail gas and advance, outgoing interface, be positioned on the outer wall of central outlet pipe of thermal-arrest housing and have radiating fin, falling heat-transfer oil in the thermal-arrest housing, on the thermal-arrest housing, be equipped with for conduction oil and circulate and transmit the first import of heat, the first outlet, the hold concurrently concrete structure of heat exchanger of accumulation of heat is, has housing, in it, be full of phase change heat storage material, and the temp-sensitive apparatus with interlocking mechanism is housed, in it, also be equipped with and take the heat conductive tube of conduction oil as working medium transmission heat, and supporting the second import be connected on housing arranged, the second outlet, at heat collector and accumulation of heat, hold concurrently between heat exchanger, have for conduction oil and circulate and transmit the pipe-line system of heat, separate heat exchange unit also is housed in housing, each heat exchange unit has respectively the import be connected on housing, outlet, heat-conducting work medium in each heat exchange unit can pass through respectively its corresponding import, outlet and corresponding independent loops pipeline, in corresponding independently heat exchange unit, circulate, and externally transmit heat be used to heating object by circulation loop.

2. the heat recovery device of vehicle exhaust according to claim 1, it is characterized in that: the heat exchange unit that described accumulation of heat is held concurrently in heat exchanger (7) for the structure of each corresponding independent loops pipeline of heating object is, circulation loop to the cooling water heating is, the water inlet of the first heat exchange unit (36) that the interior cooling water of housing (31) is used is connected to the thermostat place coolant outlet (1) of motor by the 3rd solenoid valve (6), the water out of the first heat exchange unit (36) connects the first two-position three-way valve (4) by the second solenoid valve (5), the one position is by the first threeway (28) on the pump intake of the second one-way valve (2) sending and receiving motivation, this road circulation is called the major cycle of cooling water, the another one of the first two-position three-way valve (4) successively connects by water pump (3), the 3rd one-way valve (26) short circle that reserved opening (27) the ，Ci road circulation be communicated with water-cooling channel in engine block is called cooling water,

Circulation loop to machine oil heating is, the machine oil import of the second heat exchange unit (37) that housing (31) inner engine oil is used is successively by the 4th solenoid valve (50), the first port connection with net-filter assembly (22) in the oil pan of the second gear pump (21) sending and receiving motivation, the machine oil outlet of the second heat exchange unit (37) connects the second two-position three-way valve (18) by the 5th solenoid valve (51), a priority of the second two-position three-way valve (18) is by oil filter (19), the 3rd port connection (25) in the 4th one-way valve (24) sending and receiving motivation oil radiator import, this road circulation is called the major cycle of machine oil, the another one of the second two-position three-way valve (18) is called the short circle of machine oil by the circulation of the second port connection with net-filter assembly (23) the ，Ci road in the oil pan of the 3rd one-way valve (20) sending and receiving motivation,

Circulation loop to fuel Heating is, the fuel inlet of the 3rd heat exchange unit (38) that the interior fuel oil of housing (31) is used is by the second threeway (40) on the oil outlet tube of Three gear pump (41) connected tank (46), the fuel outlet of the 3rd heat exchange unit (38) connects the 3rd two-position three-way valve (42), return tube the 4th port connection (45) the ，Ci road circulation of one position connected tank (46) is called the short circle of fuel oil; The another one of the 3rd two-position three-way valve (42), by the 5th one-way valve (43), connect the 4th two-position three-way valve (44), this valve is serially connected in the oil feed line of oil outlet tube of fuel tank (46), and be called the major cycle of fuel oil with link together ，Ci road circulation of the second threeway (40);

Circulation loop to air heating is, the air intlet of the 4th heat exchange unit (39) that the interior air of housing (31) is used sucks cool air by blower fan (47), and the air outlet slit of the 4th heat exchange unit (39) accesses operator cabin or compartment (48).

3. the heat recovery device of vehicle exhaust according to claim 1 and 2, it is characterized in that: describedly for conduction oil (14), circulate and the structure of transmitting the pipe-line system of heat is, between second import (34) of heat exchanger (7) is held concurrently in the first outlet (30) of heat collector (10) and accumulation of heat, the first one-way valve (15) is housed; In the accumulation of heat priority between first import (29) of second outlet (35) and heat collector (10) of heat exchanger (7) of holding concurrently, the first solenoid valve (17) and the defeated pump of the first tooth (16) are housed successively.

4. the heat recovery device of vehicle exhaust according to claim 1 and 2, it is characterized in that: described regulator control system is, accumulation of heat is held concurrently in heat exchanger (7) temp-sensitive apparatus (50) with interlocking mechanism is housed, according to presetting temperature, automatically control simultaneously the operation of the first gear pump (16) and the first solenoid valve (17); Two-position three-way valve, solenoid valve and gear pump are carried out to centralized control, and, according to selecting the heating object, regulate and control the operation of corresponding independent loops pipeline; Corresponding centralized control panel is located on driving console, on centralized control panel, has corresponding electrical behavior switch, tutorial light and temperature indicator.

5. the heat recovery device of vehicle exhaust according to claim 3, it is characterized in that: described regulator control system is, accumulation of heat is held concurrently in heat exchanger (7) temp-sensitive apparatus (50) is housed, according to presetting temperature, automatically control simultaneously the operation of the first gear pump (16) and the first solenoid valve (17); Two-position three-way valve, solenoid valve and gear pump are carried out to centralized control, and, according to selecting the heating object, regulate and control the operation of corresponding independent loops pipeline; Corresponding centralized control panel is located on driving console, on centralized control panel, has corresponding electrical behavior switch, tutorial light and temperature indicator.

6. the heat recovery device of vehicle exhaust according to claim 1 and 2, it is characterized in that: the structure of the radiating fin (13) had on the outer wall of the central outlet pipe (12) in heat collector (10) is the screw piece type, screw piece is welded on the outer wall of central outlet pipe (12) according to the axial screw formula of central outlet pipe (12), perhaps be thorn sheet type, the thorn sheet is welded on the outer wall of central outlet pipe (12) according to cloth formula between the axial and circumferential rule of central outlet pipe (12).

7. the heat recovery device of vehicle exhaust according to claim 3, it is characterized in that: the structure of the radiating fin (13) had on the outer wall of the central outlet pipe (12) in heat collector (10) is the screw piece type, screw piece is welded on the outer wall of central outlet pipe (12) according to the axial screw formula of central outlet pipe (12), perhaps be thorn sheet type, the thorn sheet is welded on the outer wall of central outlet pipe (12) according to cloth formula between the axial and circumferential rule of central outlet pipe (12).

8. the heat recovery device of vehicle exhaust according to claim 4, it is characterized in that: the structure of the radiating fin (13) had on the outer wall of the central outlet pipe (12) in heat collector (10) is the screw piece type, screw piece is welded on the outer wall of central outlet pipe (12) according to the axial screw formula of central outlet pipe (12), perhaps be thorn sheet type, the thorn sheet is welded on the outer wall of central outlet pipe (12) according to cloth formula between the axial and circumferential rule of central outlet pipe (12).

9. the heat recovery device of vehicle exhaust according to claim 5, it is characterized in that: the structure of the radiating fin (13) had on the outer wall of the central outlet pipe (12) in heat collector (10) is the screw piece type, screw piece is welded on the outer wall of central outlet pipe (12) according to the axial screw formula of central outlet pipe (12), perhaps be thorn sheet type, the thorn sheet is welded on the outer wall of central outlet pipe (12) according to cloth formula between the axial and circumferential rule of central outlet pipe (12).

10. the heat recovery device of vehicle exhaust according to claim 1 and 2 is characterized in that: the hold concurrently structure of the in-built heat conductive tube (33) of heat exchanger (7) of accumulation of heat is spiral cast or coiler-type; Accumulation of heat is held concurrently in heat exchanger (7) standby heat source electric heater (8) also is housed.