CN101333976B - Exhaust heat recovery device - Google Patents
Exhaust heat recovery device Download PDFInfo
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- CN101333976B CN101333976B CN200810110290XA CN200810110290A CN101333976B CN 101333976 B CN101333976 B CN 101333976B CN 200810110290X A CN200810110290X A CN 200810110290XA CN 200810110290 A CN200810110290 A CN 200810110290A CN 101333976 B CN101333976 B CN 101333976B
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- attachment portion
- working fluid
- condenser
- vaporizer
- side attachment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
An exhaust heat recovery device includes an evaporator disposed to evaporate a working fluid by exchanging heat between a heating fluid and the working fluid, a condenser disposed to cool and condense the working fluid by exchanging heat between a fluid to be heated and the working fluid evaporated by the evaporator, an evaporation side connection portion for guiding the working fluid evaporated by the evaporator to the condenser, and a condensation side connection portion for guiding the working fluid condensed by the condenser to the evaporator. Furthermore, at least one of the evaporation side connection portion and the condensation side connection portion has a curved portion.
Description
Technical field
The present invention relates to a kind of waste heat recovery plant that is used for vehicle.
Background technique
In recent years,, from the waste gas that the engine's exhaust system of vehicle is discharged, reclaim used heat, so that it is known to use the used heat of this recovery to carry out heating technology by using heat pipe principle.This waste heat recovery plant comprises the condenser of the heat pipe in vaporizer that is arranged on the heat pipe in the waste pipe and the coolant channel that is arranged on motor.In addition, waste heat recovery plant is configured to come heated engine freezing mixture (for example, seeing also Japanese documentation JP-A-62-268722) by the used heat of waste gas.
Heat pipe exchanger is proposed as the heat exchanger (for example, seeing also Japanese documentation JP-A-4-45393) that uses heat pipe principle.Heat exchanger comprises: the circulation route of sealing is used to form closed circuit; Working fluid, it is sealed in the recycle circuit and can be evaporated and condensation; And vaporizer, vaporizer is arranged on the heat that is used in the recycle circuit by the transmission of external heat fluid comes and comes vaporized working fluid.Heat exchanger also comprises condenser, and condenser is arranged on the position that is higher than vaporizer in recycle circuit, and is applicable between the working fluid of evaporator evaporation and fluid to be heated and carries out heat exchange.
Fig. 4 shows the example of waste heat recovery plant.The waste heat recovery plant that shows among Fig. 4 is configured to comprise vaporizer J1 and condenser J2, and vaporizer J1 and condenser J2 be horizontal arrangement adjacent to each other.Among vaporizer J1 and the condenser J2 each comprises a plurality of heat pipe J3.Waste heat recovery plant also comprises evaporation side attachment portion J71 and condensation side attachment portion J72, evaporation side attachment portion J71 is used for the working fluid of vaporizer J1 evaporation is directed to condenser J2, and condensation side attachment portion J72 is used for the working fluid of condenser J2 condensation is directed to vaporizer J1.In this case, vaporizer J1 is arranged in the exhaust passageway, crosses this exhaust passageway as the exhaust flow of heated fluid, and condenser J2 is arranged in the fluid passage, and fluid to be heated flows through this fluid passage.
During as fluid to be heated, waste heat recovery plant produces temperature difference between vaporizer J1 and condenser J2 at the freezing mixture of motor, because exhaust flow crosses and cause vaporizer J1 to become high temperature, because flow of engine coolant is crossed and caused condenser J2 to become low temperature.Because the thermal expansion difference between evaporation side attachment portion J71 and the condensation side attachment portion J72, the temperature difference between vaporizer J1 and the condenser J2 can cause thermal stress unfriendly.
Owing to this reason, proposed to comprise the structure of bellows (bellows), so that absorb thermal stress, wherein bellows are arranged on each attachment portion.Yet this structure is very complicated, causes high manufacture cost.In addition, bellows must be very thin so that removable.Like this, the corrosion of outer side (promptly with the atmosphere contacting side) can produce the hole in bellows.
Summary of the invention
In view of foregoing problems, the present invention has been proposed, an object of the present invention is to provide a kind of waste heat recovery plant, it can utilize simple structure to discharge thermal stress, can prevent that external corrosion from producing the hole simultaneously.
According to an aspect of the present invention, a kind of waste heat recovery plant is provided, in this waste heat recovery plant, be sealed with working fluid, this waste heat recovery plant comprises: vaporizer, described vaporizer is arranged in first path, heated fluid flows through this first path, and described vaporizer is applicable to by the heat exchange between heated fluid and the working fluid and comes vaporized working fluid; Condenser, described condenser is arranged in the alternate path, and fluid to be heated flows through this alternate path, and described condenser is applicable to by the heat exchange between the working fluid of fluid to be heated and evaporator evaporation and cools off and the condensation working fluid; The evaporation side attachment portion, described evaporation side attachment portion is used for the working fluid of evaporator evaporation is directed to condenser; With the condensation side attachment portion, described condensation side attachment portion is used for the working fluid of condenser condenses is directed to vaporizer.In addition, at least one in evaporation side attachment portion and the condensation side attachment portion has curved section.
Like this, at least one part in evaporation side attachment portion and the condensation side attachment portion is crooked or all crooked.When producing temperature difference between vaporizer and the condenser, the resiliently deformable of curved section can absorb the thermal stress that thermal expansion difference causes.At this moment, need not in evaporation side and condensation side attachment portion, bellows to be set, therefore can utilize simple structure to discharge thermal stress, prevent that simultaneously external corrosion from producing the hole.
In waste heat recovery plant, the working fluid of evaporator evaporation flows in the condenser by the evaporation side attachment portion.The liquid of condensation flows in the vaporizer by the condensation side attachment portion.Therefore, according to the balance between the condensation of the working fluid at the evaporation of the working fluid at vaporizer place and condenser place, water-head (head difference) can appear in the working fluid between vaporizer and the condenser (liquid state).Head difference allows working fluid to be back to vaporizer from condenser, thereby causes working fluid cycles.
For example, in evaporation side attachment portion and condensation side attachment portion, only the condensation side attachment portion has curved section.
Alternatively, curved section can form spirality, thereby makes the central axis of helically bent part be parallel to vertical direction.
" central axis of helically bent part is parallel to vertical direction " used herein refers to that not only the central axis of helically bent part accurately is parallel to vertical direction, refers to that also the central axis of helically bent part tilts a little with respect to vertical direction.
Alternatively, curved section can form S type shape, U type shape or arcuate shape.
For example, the condensation side attachment portion can have curved section.In this case, the condensation side attachment portion comprises first end that is connected to vaporizer and second end that is connected to condenser, and the condensation side attachment portion is arranged so that liquid level in the condensation side attachment portion is not higher than the liquid level in the condenser.In addition, second end of condensation side attachment portion can be positioned to be higher than first end of condensation side attachment portion.
Description of drawings
When in conjunction with the accompanying drawings, according to following DETAILED DESCRIPTION OF THE PREFERRED, other purpose of the present invention and advantage will become clearer.
Fig. 1 is the schematic sectional view that shows the waste heat recovery plant of the first embodiment of the present invention;
Fig. 2 A is the sectional view that shows the waste heat recovery plant of the second embodiment of the present invention, and Fig. 2 B is the view that the arrow IIB along Fig. 2 A watches;
Fig. 3 A-3D is the view that shows when the condensation side attachment portion of other embodiments of the invention when vertical downside is watched; With
Fig. 4 is the schematic sectional view that shows the waste heat recovery plant in the correlation technique.
Embodiment
(first embodiment)
Below with reference to Fig. 1 the first embodiment of the present invention is described.The waste heat recovery plant of present embodiment is applicable to the used heat of the waste gas that recovery is discharged from the vent systems of the motor (for example internal-combustion engine) of vehicle, and is applicable to and used heat is used to heat etc.
Fig. 1 is the example schematic sectional view that shows first embodiment's waste heat recovery plant.As shown in Figure 1, the waste heat recovery plant of present embodiment comprises vaporizer 1 and condenser 2.Vaporizer 1 and condenser 2 are connected to each other so that form annular heat pipe 3.
Vaporizer 1 is arranged in first housing 100, and first housing 100 is arranged in the waste pipe.By carry out heat exchange between waste gas and working fluid, vaporizer 1 is applicable to vaporized working fluid, will be described after a while.Waste gas is the example of heated fluid that is used for heating the working fluid of waste heat recovery plant.
Vaporizer 1 and condenser 2 are flatly disposed adjacent one another.Because outlet pipe is upward through vehicle in front and back usually, so the arranged direction of vaporizer 1 and condenser 2 is identical with the width direction of vehicle.
The structure of vaporizer 1 will be described now, below.Vaporizer 1 comprises a plurality of evaporation side pipe 41a and corrugated fin 42a, and corrugated fin 42a is connected to the outer surface of evaporation side pipe 41a.Evaporation side pipe 41a forms even shape, thereby makes that the flow direction of waste gas is identical with the major axes orientation of smooth pipe section.In Fig. 1, the flow direction of waste gas is vertical with paper.Pipe 41a layout parallel to each other, thus make the longitudinal direction of pipe identical with the vertical direction of vaporizer (top-end direction).
In vaporizer 1, evaporation side is responsible for 5a and is communicated with the sub-41a of all evapn side pipe, and evaporation side is responsible for the place, two ends that 5a is arranged on the longitudinal direction of evaporation side pipe 41a, so that extend on the stacked direction of pipe 41a.Be responsible among the 5a two evaporation side, be positioned at evaporation side on the upper end side of waste heat recovery plant and be responsible for 5a and be known as first evaporation side and be responsible for 51a, be positioned at evaporation side on the lower end side of waste heat recovery plant and be responsible for 5a and be known as second evaporation side and be responsible for 52a.
Next, the structure of condenser 2 will be described below.Condenser 2 comprises a plurality of condensation side pipe 41b and corrugated fin 42b, and corrugated fin 42b is connected to the outer surface of condensation side pipe 41b.Condensation side pipe 41b forms even shape, thereby makes the flow direction of the waste gas in the housing 100 of winning identical with the major axes orientation of pipe section.Pipe 41b layout parallel to each other, thus make the longitudinal direction of pipe 41b identical with the vertical direction of condenser 2 (top-end direction).
In condenser 2, condensation side is responsible for 5b and is communicated with all condensation side pipe 41b, and condensation side is responsible for the place, two ends that 5b is arranged on the longitudinal direction of condensation side pipe 41b, so that extend on the stacked direction of pipe 41b.Be responsible among the 5b two condensation side, be positioned at condensation side on the vertical upper end side of waste heat recovery plant and be responsible for 5b and be known as first condensation side and be responsible for 51b, be positioned at condensation side on the vertical lower end side of waste heat recovery plant and be responsible for 5b and be known as second condensation side and be responsible for 52b.When waste heat recovery plant was installed on the vehicle with level, second condensation side was responsible for 52b and is positioned at the top that second evaporation side is responsible for 52a.In example shown in Figure 1, first condensation side is responsible for 51b and is positioned at the roughly the same height and position place with first evaporation side person in charge 51a, and second condensation side is responsible for 52b and is positioned at the position that is higher than second evaporation side person in charge 52a.
Valve system 6 (valve cell) is arranged on second condensation side and is responsible among the 52b.Valve system 6 is applicable to form the flow passage that connects condensation side pipe 41b and second evaporation side person in charge 52a as diaphragm type open and close unit.Valve system 6 is configured to according to the internal pressure of evaporation side pipe 41a (that is the pressure of working fluid) open and close flow passage.Especially, when internal pressure when the common valve open mode of valve system 6 is increased to above first predetermined pressure under the predetermined temperature of working fluid, valve system 6 closures.On the contrary, when internal pressure is reduced to when being lower than second predetermined pressure, valve system 6 is opened once more, and second predetermined pressure is lower than first predetermined pressure.
Evaporation side is responsible for 5a and is communicated with condensation side person in charge 5b through cylinder attachment portion 7.Evaporation side and condensation side pipe 41a and 41b, evaporation side and condensation side are responsible for 5a and 5b and attachment portion 7 and are formed the closed-loop path.That is, evaporation side and condensation side pipe 41a and 41b, evaporation side and condensation side are responsible for 5a and 5b and attachment portion 7 and are connected into annular, so that form heat pipe 3.This allows working fluid cycles by vaporizer 1 and condenser 2.
In two attachment portions 7, the attachment portion that is arranged on the upside is called evaporation side attachment portion 71.Evaporation side attachment portion 71 is applicable to that first evaporation side is responsible for 51a is connected to first condensation side person in charge 51b, and the working fluid of vaporizer 1 evaporation is directed to condenser 2.In two attachment portions 7, the attachment portion that is arranged on downside is called condensation side attachment portion 72.Condensation side attachment portion 72 is applicable to that second evaporation side is responsible for 52a is connected to second condensation side person in charge 52b, and the working fluid of condenser 2 coolings and condensation is directed to vaporizer 1.
Condensation side attachment portion 72 comprises lower member 701 and upper component 702, lower member 701 have be connected to second evaporation side be responsible for 52a an end and from this end roughly along continuous straight runs extend to condenser 2, upper component 702 have be connected to second condensation side be responsible for 52b an end and from this end roughly along continuous straight runs extend to vaporizer 1.Condensation side attachment portion 72 also comprises spiral part 703, spiral part 703 forms spiral-shaped, (promptly simultaneously from the other end of lower member 701, from the end of lower member 701 away from vaporizer 1) extend the other end (that is, upper component 702 is away from an end of condenser 2) to upper component 702.The spiral central axis of spiral part 703 is roughly parallel to vertical direction (top-end direction).That is, in spiral part 703, working fluid is positioned on the downside, because working fluid flows towards the downstream side of working fluid stream.Spiral part 703 is examples of curved section of the present invention.
As mentioned above, spiral part 703 is arranged in the condensation side attachment portion 72.Therefore, when producing temperature difference between vaporizer 1 and the condenser 2, the resiliently deformable of spiral part 703 can absorb the thermal stress that thermal expansion difference causes.At this moment, need not in evaporation side and condensation side attachment portion 71 and 72, bellows to be set, therefore can utilize simple structure to discharge thermal stress, prevent that simultaneously external corrosion from producing the hole.
Because the volume of the working fluid of vaporizer 1 place evaporation approximately is 1000 times of volume of the working fluid of condenser 2 condensations, so the sectional area of the path of evaporation side attachment portion 71 is greater than the sectional area of condensation side attachment portion 72.Therefore, in the present embodiment, spiral part 703 only is arranged in the condensation side attachment portion 72, and it is long-pending that condensation side attachment portion 72 has littler passage sections in two attachment portions 71 and 72.Therefore, compare, can improve workability with the situation that spiral part 703 is arranged in the evaporation side attachment portion 71 with MP major path sectional area more.
The spiral central axis of spiral part 703 is parallel with vertical direction, and the working fluid in the spiral part 703 is allowed to locate down, towards the downstream side of working fluid stream.This can eliminate the necessity that working fluid temporarily is positioned at the high level in the spiral part 703, therefore prevents to reduce the cyclicity of working fluid.Because the liquid level of working fluid in spiral part 703 is not higher than the liquid level of working fluid in condenser 2, working fluid can be back to vaporizer 1 from condenser 2 fully, thereby guarantees heat exchange performance.
Be positioned in the waste heat recovery plant of the position that is relatively higher than vaporizer 1 at condenser 2, can guarantee the water-head of the working fluid between vaporizer 1 and the condenser 2 fully.This has eliminated the necessity of the spiral central axis of spiral part 703 being arranged to be parallel to vertical direction, and spiral part 703 is arranged in the condensation side attachment portion 72.Yet, because waste heat recovery plant is installed on the vehicle, therefore wish that waste heat recovery plant has compact structure and good installation capability, that is, in present embodiment, vaporizer 1 and condenser 2 structure flatly adjacent one another are.Therefore, in having the waste heat recovery plant of compact structure, the spiral central axis that is arranged on the spiral part 703 in the condensation side attachment portion 72 is arranged to be parallel to vertical direction.This can make working fluid be back to vaporizer 1 with sufficient amount from condenser 2, improves the installation capability of vehicle simultaneously.
(second embodiment)
Now, will the second embodiment of the present invention be described based on Fig. 2 A and 2B.Have with the element of first embodiment's identical function and represent, and omit their explanation with identical reference mark.
Fig. 2 A is the sectional view that shows the waste heat recovery plant of the second embodiment of the present invention, and Fig. 2 B is the view that the arrow IIB along Fig. 2 A watches.In Fig. 2 A and 2B, omitted the detailed structure of condenser 2.
Shown in Fig. 2 A and 2B, in a second embodiment, condensation side attachment portion 72 comprises lower member 701 and upper component 702.Lower member 701 has an end that is connected to second evaporation side person in charge 52a, and roughly along continuous straight runs extends to condenser 2.Upper component 702 has an end of second condensation side person in charge's who is connected to condenser 2 lower end, and roughly vertically extends to downside.Condensation side attachment portion 72 also comprises attachment portion 704, and attachment portion 704 is used for the other end of lower member 701 end of vaporizer 1 (that is, away from) is connected to the other end one end of condenser 2 (that is, away from) of upper component 702.
In Fig. 2 B, arrow E F represents the flow direction of waste gas.Shown in Fig. 2 B, when when downside is vertically watched, attachment portion 704 forms S type shapes.That is, attachment portion 704 has two curved sections 8, and each curved section forms arc.Two curved sections 8 are parts of attachment portion 704, and connect continuously so that form S shape attachment portion 704.In a word, attachment portion 704 is provided with two arc-shaped bend parts 8.In the present embodiment, two arc-shaped bend parts 8 have roughly the same radius of curvature each other.
Shown in Fig. 2 A, attachment portion 704 forms the lineal shape of diagonally extending, and when the flow direction EF from waste gas watched, attachment portion 704 in the vertical directions were located down towards vaporizer 1.In the example of Fig. 2 A, the flow direction EF of waste gas is corresponding to the front-back side direction of paper.Because totally extend attachment portion 704, towards the downstream side of working fluid, and have S shape shape, so working fluid is allowed in the vertical direction and locatees down, i.e. the downstream side of the stream of the working fluid in attachment portion 704 down.
As mentioned above, be formed with arc-shaped bend part 8 on the part of condensation side attachment portion 72.When temperature difference occurring between vaporizer 1 and the condenser 2, the resiliently deformable of curved section 8 can absorb the thermal stress that thermal expansion difference causes.At this moment, need not in evaporation side and condensation side attachment portion 71 and 72, bellows to be set, therefore can utilize simple structure to discharge thermal stress, prevent that simultaneously external corrosion from producing the hole.
Because the volume of the working fluid of vaporizer 1 place evaporation approximately is 1000 times of volume of the working fluid of condenser 2 condensations, so the sectional area of the path of evaporation side attachment portion 71 is usually greater than the sectional area of condensation side attachment portion 72.Therefore, in the present embodiment, curved section 8 only is arranged in the condensation side attachment portion 72, and it is long-pending that condensation side attachment portion 72 has littler passage sections in two attachment portions 71 and 72.Therefore, compare, can improve workability with the situation that curved section 8 is arranged in the evaporation side attachment portion 71 with MP major path sectional area more.
The working fluid that has in the attachment portion 704 of two curved sections 8 is allowed to locate down, promptly towards the downstream side of working fluid stream.This can eliminate the necessity that working fluid temporarily is positioned at the high level in the attachment portion 704, therefore prevents to reduce the cyclicity of working fluid.Because the liquid level of working fluid in attachment portion 704 is not higher than the liquid level of working fluid in condenser 2, so working fluid can be back to vaporizer 1 from condenser 2 fully, thereby guarantees heat exchange performance.
(other embodiment)
Although with reference to the accompanying drawings, utilize preferred embodiment to describe the present invention in detail, need to prove that for those skilled in the art, variations and modifications are conspicuous.
For example, in above-mentioned first embodiment, valve system 6 is arranged on second condensation side and is responsible among the 52b, as shown in Figure 1.Yet valve system 6 is not provided with.
Although among above-mentioned each embodiment, an end of the lower member 701 of condensation side attachment portion 72 is connected to second evaporation side and is responsible for 52a, and the present invention is not limited to this.One end of lower member 701 can be directly connected to the evaporation side pipe 41a of the most close condenser 2 among a plurality of evaporation side pipe 41a.
Although in above-mentioned each embodiment, freezing mixture is as fluid to be heated, and fluid to be heated can comprise oil in the torque converter of engine oil, vehicular automatic transmission, be used for the water of heater etc.
Although in first embodiment, spiral part 703 only is arranged in the condensation side attachment portion 72 in two attachment portions 71 and 72, and the present invention is not limited to this.Spiral part 703 can only be arranged in the evaporation side attachment portion 71, or is arranged in two attachment portions 71 and 72.
Although in first embodiment, condensation side attachment portion 72 forms spiral spiral part 703 by lower member 701, upper component 702 and the end from an end of lower member 701 to upper component 702 and constitutes, and the present invention is not limited to this.For example, whole condensation side attachment portion 72 can form spirality, that is, condensation side attachment portion 72 can be responsible for 52a to the second condensation side from second evaporation side and be responsible for 52b formation spirality.
Although in first embodiment, the spiral central axis of spiral part 703 is roughly parallel to vertical direction, and spiral part 703 can be not parallel to vertical direction.For example, the central axis of spiral part 703 can tilt with respect to vertical direction.
Although in a second embodiment, the upper component 702 of condensation side attachment portion 72 forms roughly and vertically extends towards downside, and the present invention is not limited to this.For example, as shown in Figure 3A, condensation side attachment portion 72 can form roughly along continuous straight runs extension to vaporizer 1 side.
Although in a second embodiment, two curved sections 8 have identical radius of curvature, and the present invention is not limited to this.Shown in Fig. 3 B, two curved sections 8 can have different radius of curvature.
Although in a second embodiment, when attachment portion when downside is vertically watched 704 forms S shapes, the present invention is not limited to this.For example, shown in Fig. 3 C, when attachment portion 704 when downside is vertically watched can form roughly U type shape.In this case, attachment portion 704 can have three arc-shaped bend parts 8.In addition, attachment portion 704 can have the curved section above three.
Although in a second embodiment, curved section 8 only is arranged in the condensation side attachment portion 72 in two attachment portions 71 and 72, and the present invention is not limited to this.Curved section 8 can only be arranged in the evaporation side attachment portion 71, or in two attachment portions 71 and 72.
Although in a second embodiment, attachment portion 704 forms the lineal shape of diagonally extendings, and when when the direction of exhaust flow is watched, attachment portion 704 in the vertical directions are located down towards vaporizer 1, and the present invention is not limited to this.When the direction of exhaust flow is watched, locate down towards vaporizer 1 attachment portion 704 not in the vertical direction, does not perhaps form lineal shape.
These variations and modification are conspicuous, ought to fall in protection scope of the present invention of claims qualification.
Claims (7)
1. a waste heat recovery plant is sealed with working fluid in this waste heat recovery plant, and this working fluid can be evaporated and condensation by heat exchange, and this waste heat recovery plant comprises:
Vaporizer (1), described vaporizer are arranged in first path that heated fluid flows through, and described vaporizer is applicable to by the heat exchange between heated fluid and the working fluid and comes vaporized working fluid;
Condenser (2), described condenser are arranged in the alternate path that fluid to be heated flows through, and described condenser is applicable to by the heat exchange between the working fluid of fluid to be heated and evaporator evaporation and cools off and the condensation working fluid;
Evaporation side attachment portion (71), described evaporation side attachment portion is used for the working fluid of evaporator evaporation is directed to condenser; With
Condensation side attachment portion (72), described condensation side attachment portion is used for the working fluid of condenser condenses is directed to vaporizer,
Wherein, vaporizer and condenser ground located adjacent one another horizontal arrangement;
Wherein the condensation side attachment portion has curved section (8,703), and described curved section is constructed to allow the working fluid in the vertical direction downstream side of the working fluid of positioning instant in the condensation side attachment portion down.
2. according to the waste heat recovery plant of claim 1, wherein curved section (703) forms spirality, thereby makes the central axis of helically bent part (703) be roughly parallel to vertical direction.
3. according to the waste heat recovery plant of claim 1, wherein curved section (8) forms S type shape.
4. according to the waste heat recovery plant of claim 1, wherein curved section (8) forms U type shape.
5. according to the waste heat recovery plant of claim 1, wherein curved section (8) has arcuate shape.
6. according to any described waste heat recovery plant among the claim 1-5,
Wherein the condensation side attachment portion comprises first end that is connected to vaporizer and second end that is connected to condenser, and
Wherein the condensation side attachment portion is arranged so that liquid level in the condensation side attachment portion is not higher than the liquid level in the condenser.
7. according to the waste heat recovery plant of claim 6, wherein second end of condensation side attachment portion is positioned to be higher than first end of condensation side attachment portion.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-170078 | 2007-06-28 | ||
| JP2007170078 | 2007-06-28 | ||
| JP2007170078 | 2007-06-28 | ||
| JP2008-034082 | 2008-02-15 | ||
| JP2008034082 | 2008-02-15 | ||
| JP2008034082A JP4380773B2 (en) | 2007-06-28 | 2008-02-15 | Exhaust heat recovery unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101333976A CN101333976A (en) | 2008-12-31 |
| CN101333976B true CN101333976B (en) | 2010-07-28 |
Family
ID=40196794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810110290XA Expired - Fee Related CN101333976B (en) | 2007-06-28 | 2008-06-26 | Exhaust heat recovery device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4380773B2 (en) |
| CN (1) | CN101333976B (en) |
-
2008
- 2008-02-15 JP JP2008034082A patent/JP4380773B2/en not_active Expired - Fee Related
- 2008-06-26 CN CN200810110290XA patent/CN101333976B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101333976A (en) | 2008-12-31 |
| JP4380773B2 (en) | 2009-12-09 |
| JP2009030591A (en) | 2009-02-12 |
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