CN209212325U - A kind of exhaust heat utilization system - Google Patents
A kind of exhaust heat utilization system Download PDFInfo
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- CN209212325U CN209212325U CN201821777140.XU CN201821777140U CN209212325U CN 209212325 U CN209212325 U CN 209212325U CN 201821777140 U CN201821777140 U CN 201821777140U CN 209212325 U CN209212325 U CN 209212325U
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- heat exchanger
- exhaust
- heat
- pressure resistant
- pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to waste gas heat utilization technical fields, disclose a kind of exhaust heat utilization system, which includes host exhaust processor, subsidiary engine exhaust processor and pressure resistant vessel.Host exhaust processor includes First Heat Exchanger and the second heat exchanger, and host exhaust processor is connected with first exhaust collector；Subsidiary engine exhaust processor includes third heat exchanger and the 4th heat exchanger, and subsidiary engine exhaust processor is connected with second exhaust collector；Pressure resistant vessel top is filled with steam, it is under-filled to have hot water, the lower part of pressure resistant vessel is connected with the first branch, the first branch is separately connected the second heat exchanger and the 4th heat exchanger, second heat exchanger and the 4th heat exchanger are connected to the middle part of pressure resistant vessel, the top of pressure resistant vessel is connected with second branch, and second branch is separately connected First Heat Exchanger and third heat exchanger, and First Heat Exchanger and third heat exchanger are separately connected steam turbine.The utility model simple and effective, occupies little space, and improves marine fuel oil integrated heat efficiency.
Description
Technical field
The utility model relates to waste gas heat utilization technical field more particularly to a kind of exhaust heat utilization systems.
Background technique
In ship domain, on the one hand, there is an urgent need to comprehensively utilize to improve fuel comprehensive utilization ratio by waste gas residual heat,
Reduce ship energy consumption；On the other hand, how afterheat utilizing system reduces occupied space if being also contemplated that, reduce cost problem.
However, all using conventional in the marine main engine afterheat utilizing system of major part marine main engine manufacturing company exploitation at present
Waste heat boiler generates hot water or steam using exhaust gas.Such as the patent document of Publication No. CN103967648A, disclose one kind
Marine low speed diesel residual heat comprehensive recovery system.It is related to promoting host waste gas residual heat boiler and steam turbine in UTILIZATION OF VESIDUAL HEAT IN,
Without reference to the utilization of auxiliary power generation diesel exhaust.The patent document of Publication No. CN102777221A discloses a kind of base
It is the exhaust for marine diesel engine genset in the marine diesel engine genset power generation system using waste heat of Organic Rankine Cycle
UTILIZATION OF VESIDUAL HEAT IN is generated electricity using organic working medium expanding machine, without reference to exhaust boiler and drum.
Either host or auxiliary power generation diesel engine, the thermal efficiency of machine is promoted to be respectively less than 50%, there are about one thirds
Fuel energy taken away by exhaust gas, presently, there are two problems: the energy utilization ratio of waste gas residual heat using system for Ship Waste Heat
It is smaller；It can seldom consider the UTILIZATION OF VESIDUAL HEAT IN of auxiliary power generation diesel exhaust.
Utility model content
Based on problem above, the purpose of this utility model is to provide a kind of exhaust heat utilization system, simple and effective is accounted for
It is small with space, it can be completed at the same time the waste gas heat utilization of Ship Propeling host and auxiliary power generation diesel engine, improve marine fuel oil
Integrated heat efficiency.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of exhaust heat utilization system, comprising:
Host exhaust processor, the host exhaust processor include First Heat Exchanger and the second heat exchanger, at host exhaust gas
One end of reason device is connected with first exhaust collector, and host exhaust gas is inputted by first exhaust collector, successively with First Heat Exchanger and the
It is discharged after the exchange of two exchanger heats；
Subsidiary engine exhaust processor, the subsidiary engine exhaust processor include third heat exchanger and the 4th heat exchanger, at subsidiary engine exhaust gas
One end of reason device is connected with second exhaust collector, and subsidiary engine exhaust gas is inputted by second exhaust collector, successively with third heat exchanger and the
It is discharged after the exchange of four exchanger heats；
Pressure resistant vessel, the top of the pressure resistant vessel inner cavity is filled with steam, under-filled to have hot water, the lower part of pressure resistant vessel
It is connected with the first branch, the first branch is separately connected the entrance of the second heat exchanger and the 4th heat exchanger backwards to one end of pressure resistant vessel
The outlet end of end, the second heat exchanger and the 4th heat exchanger is connected to the middle part of pressure resistant vessel, the top connection of pressure resistant vessel
There is second branch, second branch is separately connected the arrival end of First Heat Exchanger and third heat exchanger backwards to one end of pressure resistant vessel,
The outlet end of First Heat Exchanger and third heat exchanger is separately connected steam turbine.
The preferred embodiment of exhaust heat utilization system as the utility model is provided with forced circulation in the first branch
One end of pump, forced circulation pump connects pressure resistant vessel, and the other end is separately connected the arrival end of the second heat exchanger and the 4th heat exchanger.
The preferred embodiment of exhaust heat utilization system as the utility model, the first branch is backwards to one end of pressure resistant vessel
The first control valve is provided between the arrival end of the second heat exchanger, the first control valve can control pressure resistant vessel and be supplied to second
The hot water flow of heat exchanger.
The preferred embodiment of exhaust heat utilization system as the utility model, second branch is backwards to one end of pressure resistant vessel
The second control valve is provided between the arrival end of First Heat Exchanger, the second control valve can control pressure resistant vessel and be supplied to first
The steam flow of heat exchanger.
The preferred embodiment of exhaust heat utilization system as the utility model, steam turbine are connected with by transmission mechanism
Generating set.
The preferred embodiment of exhaust heat utilization system as the utility model, further includes non-pressure vessel, in non-pressure vessel
The under-filled of chamber has hot water, and the lower part of non-pressure vessel is connected by the lower part of feed pump and pressure resistant vessel.
The preferred embodiment of exhaust heat utilization system as the utility model, the top of pressure resistant vessel by regulating valve with
The top of non-pressure vessel connects.
The preferred embodiment of exhaust heat utilization system as the utility model, the lower part of non-pressure vessel are connected with other heat
Source branch.
The preferred embodiment of exhaust heat utilization system as the utility model further includes vacuum condenser, vacuum condensation
One end of device is connect with steam turbine, and the other end is pumped by condensate water circulatory and connect with the lower part of non-pressure vessel, vacuum condenser
It is also connected with sea water pump, sea water pump can provide the seawater for heat exchange for vacuum condenser.
The preferred embodiment of exhaust heat utilization system as the utility model, vacuum condenser towards steam turbine one
End is connected with urgent branch, and urgent branch is separately connected First Heat Exchanger and third heat exchanger backwards to one end of vacuum condenser
Outlet end.
The utility model has the following beneficial effects:
The utility model is inputted host exhaust gas by first exhaust collector, successively with First Heat Exchanger and the second exchanger heat
It is discharged after exchange, the waste gas heat utilization of Ship Propeling host is completed by host exhaust processor, by subsidiary engine exhaust gas by second
Exhaust header input, is discharged after successively exchanging with third heat exchanger and the 4th exchanger heat, is completed by subsidiary engine exhaust processor
The waste gas heat utilization of ship auxiliary power generation diesel engine, can further improve marine fuel oil integrated heat efficiency；Pass through pressure resistant vessel
Interior steam and hot water and host exhaust gas and subsidiary engine exhaust gas carry out heat exchange respectively, and simple and effective occupies little space, energy-saving ring
It protects.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 is the schematic diagram for the exhaust heat utilization system that specific embodiment of the present invention provides.
In figure:
1- host exhaust processor；2- subsidiary engine exhaust processor；3- pressure resistant vessel；4- steam turbine；5- transmission
Mechanism；6- generating set；7- non-pressure vessel；8- vacuum condenser；
11- First Heat Exchanger；The second heat exchanger of 12-；
21- third heat exchanger；The 4th heat exchanger of 22-；
91- first exhaust collector；92- second exhaust collector；
100- forced circulation pump；200- feed pump；300- condensate water circulatory pump；400- sea water pump；
The first control valve of 1000-；The second control valve of 2000-；3000- regulating valve.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
It is practical new to belong to this for those skilled in the art's every other embodiment obtained without creative efforts
The range of type protection.
As shown in Figure 1, present embodiment provides a kind of exhaust heat utilization system, which includes master
Machine exhaust processor 1, subsidiary engine exhaust processor 2 and pressure resistant vessel 3.
Wherein, host exhaust processor 1 includes First Heat Exchanger 11 and the second heat exchanger 12, host exhaust processor 1
One end is connected with first exhaust collector 91.Host exhaust gas is inputted by first exhaust collector 91, successively with First Heat Exchanger 11 and
It is discharged after two heat exchangers, 12 heat exchange.
Subsidiary engine exhaust processor 2 includes third heat exchanger 21 and the 4th heat exchanger 22, and one end of subsidiary engine exhaust processor 2 connects
It is connected to second exhaust collector 92.Subsidiary engine exhaust gas is inputted by second exhaust collector 92, is successively exchanged heat with third heat exchanger 21 and the 4th
It is discharged after 22 heat exchange of device.
It should be noted that First Heat Exchanger 11, the second heat exchanger 12, third heat exchanger 21 and the 4th heat exchanger 22 change
Heat pipe is all made of fin structure, convenient for efficiently carrying out heat exchange.Longtime running dust stratification in order to prevent, host exhaust processor 1
Several soot blowers are each configured with subsidiary engine exhaust processor 2, the dust stratification on heat exchanger is periodically removed, improves exhaust gas economizer
Heat exchange efficiency.
The top of 3 inner cavity of pressure resistant vessel is filled with steam, under-filled to have hot water.Preferably, 3 inner cavity of pressure resistant vessel is upper
Portion is filled with saturated vapor, under-filled to have saturated hot-water, convenient for sufficiently and efficiently carrying out heat exchange.Pressure resistant vessel 3 is set
Pressure is counted to be determined according to host, the exhaust gas flow of subsidiary engine, temperature.
The lower part of pressure resistant vessel 3 is connected with the first branch, and the first branch is separately connected second backwards to one end of pressure resistant vessel 3
The outlet end of the arrival end of heat exchanger 12 and the 4th heat exchanger 22, the second heat exchanger 12 and the 4th heat exchanger 22, which is connected to, holds
The middle part of pressure vessel 3.Saturated hot-water is delivered to the second heat exchanger 12 and the 4th heat exchanger 22 by pressure resistant vessel 3 respectively, respectively with
Host exhaust gas and subsidiary engine exhaust gas complete the saturated vapor of formation gas and liquid two phases after heat exchange, and then, saturated vapor is delivered to pressure-bearing
In container 3.
The top of pressure resistant vessel 3 is connected with second branch, and second branch is separately connected first backwards to one end of pressure resistant vessel 3
The outlet end of the arrival end of heat exchanger 11 and third heat exchanger 21, First Heat Exchanger 11 and third heat exchanger 21 is separately connected steam
Turbine 4.Saturated vapor is delivered to First Heat Exchanger 11 and third heat exchanger 21 by pressure resistant vessel 3 respectively, respectively with host exhaust gas
Superheated steam is formed after completing heat exchange with subsidiary engine exhaust gas, then, superheated steam is delivered in steam turbine 4 and forms power source.
The waste gas heat utilization of Ship Propeling host is completed by host exhaust processor 1, meanwhile, at subsidiary engine exhaust gas
The waste gas heat utilization that device 2 completes ship auxiliary power generation diesel engine is managed, can further improve marine fuel oil integrated heat efficiency.Pass through
Saturated vapor and saturated hot-water and host exhaust gas and subsidiary engine exhaust gas in pressure resistant vessel 3 carry out heat exchange respectively, and simple and effective accounts for
It is small with space, energy conservation and environmental protection.
Specifically, being provided with forced circulation pump 100 in the first branch, one end of forced circulation pump 100 connects pressure resistant vessel
3, the other end is separately connected the arrival end of the second heat exchanger 12 and the 4th heat exchanger 22.100 parameter of forced circulation pump is according to circulation
Flow, lift determine, for by the saturated hot-water smooth delivery of power of pressure resistant vessel 3 into the second heat exchanger 12 and the 4th heat exchanger 22
Carry out heat exchange.
In order to efficiently use the heat of waste gas heat utilization, power generation operation is completed, steam turbine 4 passes through driver
Structure 5 is connected with generating set 6.The mixed vapour generated using host exhaust processor 1, subsidiary engine exhaust processor 2, drives steam
The device that turbine 4 drives generating set 6 to generate electricity by transmission mechanism 5.
In order to ensure that the capacity of hot water in pressure resistant vessel 3 is used to cycle heat exchange enough, which is also wrapped
Non-pressure vessel 7 is included, the under-filled of 7 inner cavity of non-pressure vessel has hot water, and the lower part of non-pressure vessel 7 passes through feed pump 200 and pressure-bearing
The lower part of container 3 connects.The lower part of non-pressure vessel 7 is connected with other heat source branches, and the hot water that other heat sources generate being capable of conduct
The heat source hot water of non-pressure vessel 7.
In order to recycle the discharge steam after steam turbine 4, which further includes
One end of vacuum condenser 8, vacuum condenser 8 is connect with steam turbine 4, and the other end passes through condensate water circulatory pump 300 and normal pressure
The lower part of container 7 connects, and vacuum condenser 8 is also connected with sea water pump 400, and sea water pump 400 can provide use for vacuum condenser 8
In the seawater of heat exchange.
More specifically, the first branch is arranged between one end of pressure resistant vessel 3 and the arrival end of the second heat exchanger 12
There is the first control valve 1000, the first control valve 1000 can control the hot water flow that pressure resistant vessel 3 is supplied to the second heat exchanger 12.
Second branch is provided with the second control valve between one end of pressure resistant vessel 3 and the arrival end of First Heat Exchanger 11
2000, the second control valve 2000 can control the steam flow that pressure resistant vessel 3 is supplied to First Heat Exchanger 11.It needs to illustrate
It is that the saturated vapor and saturated hot-water in pressure resistant vessel 3 can pass through 2000 basis of the first control valve 1000 and the second control valve
Host, subsidiary engine exhaust gas thermic load accounting be adjusted automatically.
The top of pressure resistant vessel 3 is connect by regulating valve 3000 with the top of non-pressure vessel 7.Water sets in non-pressure vessel 7
Meter temperature is automatically adjusted by regulating valve 3000, is guaranteed by the saturated vapor flow that pressure resistant vessel 3 bypasses.
Vacuum condenser 8 is connected with urgent branch towards one end of steam turbine 4, and urgent branch is backwards to vacuum condenser 8
One end be separately connected the outlet end of First Heat Exchanger 11 and third heat exchanger 21.When steam turbine 4 is in an emergency, vacuum
Condenser 8 has whole steam by-pass for generating host exhaust processor 1 and subsidiary engine exhaust processor 2 to vacuum condenser 8
In ability.
The utility model simple and effective, occupies little space, energy conservation and environmental protection, can be completed at the same time Ship Propeling host and auxiliary
The waste gas heat utilization of generating diesel engine improves marine fuel oil integrated heat efficiency.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment here, is able to carry out for a person skilled in the art various apparent
Variation is readjusted and is substituted without departing from the protection scope of the utility model.Therefore, although by above embodiments to this
Utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from this reality
It can also include more other equivalent embodiments in the case where with novel design, and the scope of the utility model is by appended power
Sharp claimed range determines.
Claims (9)
1. a kind of exhaust heat utilization system characterized by comprising
Host exhaust processor (1), including First Heat Exchanger (11) and the second heat exchanger (12), the host exhaust processor
(1) one end is connected with first exhaust collector (91), and host exhaust gas is inputted by the first exhaust collector (91), successively with it is described
It is discharged after First Heat Exchanger (11) and second heat exchanger (12) heat exchange；
Subsidiary engine exhaust processor (2), including third heat exchanger (21) and the 4th heat exchanger (22), the subsidiary engine exhaust processor
(2) one end is connected with second exhaust collector (92), and subsidiary engine exhaust gas is inputted by the second exhaust collector (92), successively with it is described
It is discharged after third heat exchanger (21) and the 4th heat exchanger (22) heat exchange；
Pressure resistant vessel (3), the top of pressure resistant vessel (3) inner cavity is filled with steam, under-filled to have hot water, and the pressure-bearing is held
The lower part of device (3) is connected with the first branch, and the first branch is separately connected described backwards to one end of the pressure resistant vessel (3)
The arrival end of two heat exchangers (12) and the 4th heat exchanger (22), second heat exchanger (12) and the 4th heat exchanger
(22) outlet end is connected to the middle part of the pressure resistant vessel (3), and the top of the pressure resistant vessel (3) is connected with second
Road, the second branch are separately connected the First Heat Exchanger (11) and the third backwards to one end of the pressure resistant vessel (3)
The outlet end of the arrival end of heat exchanger (21), the First Heat Exchanger (11) and the third heat exchanger (21) is separately connected steam
Turbine (4).
2. exhaust heat utilization system according to claim 1, which is characterized in that be provided with pressure in the first branch
Circulating pump (100), one end of the forced circulation pump (100) connect the pressure resistant vessel (3), and the other end is separately connected described the
The arrival end of two heat exchangers (12) and the 4th heat exchanger (22).
3. exhaust heat utilization system according to claim 1, which is characterized in that the first branch is backwards to the pressure-bearing
It is provided between one end of container (3) and the arrival end of second heat exchanger (12) the first control valve (1000), described first
Control valve (1000) can control the hot water flow that the pressure resistant vessel (3) is supplied to second heat exchanger (12).
4. exhaust heat utilization system according to claim 1, which is characterized in that the second branch is backwards to the pressure-bearing
It is provided with the second control valve (2000) between one end of container (3) and the arrival end of the First Heat Exchanger (11), described second
Control valve (2000) can control the steam flow that the pressure resistant vessel (3) is supplied to the First Heat Exchanger (11).
5. exhaust heat utilization system according to claim 1, which is characterized in that the steam turbine (4) passes through transmission
Mechanism (5) is connected with generating set (6).
6. exhaust heat utilization system according to claim 1, which is characterized in that it further include non-pressure vessel (7), it is described normal
The under-filled of pressure vessel (7) inner cavity has hot water, and the lower part of the non-pressure vessel (7) passes through feed pump (200) and the pressure-bearing
The lower part of container (3) connects.
7. exhaust heat utilization system according to claim 6, which is characterized in that the top of the pressure resistant vessel (3) is logical
Valve (3000) is overregulated to connect with the top of the non-pressure vessel (7).
8. exhaust heat utilization system according to claim 6, which is characterized in that it further include vacuum condenser (8), it is described
One end of vacuum condenser (8) is connect with the steam turbine (4), and the other end is pumped (300) and described normal by condensate water circulatory
The lower part of pressure vessel (7) connects, and the vacuum condenser (8) is also connected with sea water pump (400), and the sea water pump (400) can
The seawater for being used for heat exchange is provided for the vacuum condenser (8).
9. exhaust heat utilization system according to claim 8, which is characterized in that the vacuum condenser (8) is towards institute
The one end for stating steam turbine (4) is connected with urgent branch, and the urgent branch is distinguished backwards to one end of the vacuum condenser (8)
Connect the outlet end of the First Heat Exchanger (11) and the third heat exchanger (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821777140.XU CN209212325U (en) | 2018-10-30 | 2018-10-30 | A kind of exhaust heat utilization system |
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| CN201821777140.XU CN209212325U (en) | 2018-10-30 | 2018-10-30 | A kind of exhaust heat utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252910A (en) * | 2018-10-30 | 2019-01-22 | 中船动力研究院有限公司 | A kind of exhaust heat utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252910A (en) * | 2018-10-30 | 2019-01-22 | 中船动力研究院有限公司 | A kind of exhaust heat utilization system |
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