CN207526538U - A kind of cogeneration unit and energy-saving generating plant - Google Patents
A kind of cogeneration unit and energy-saving generating plant Download PDFInfo
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- CN207526538U CN207526538U CN201721693967.8U CN201721693967U CN207526538U CN 207526538 U CN207526538 U CN 207526538U CN 201721693967 U CN201721693967 U CN 201721693967U CN 207526538 U CN207526538 U CN 207526538U
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- heat exchanger
- working medium
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- power generator
- expansion power
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Abstract
The utility model discloses a kind of cogeneration unit and energy-saving generating plants, are related to cogeneration technology field.The cogeneration unit includes expansion power generator, afterheat heat exchanger, Recuperative heat exchanger, condenser and working medium pump.Afterheat heat exchanger is connect with expansion power generator, afterheat heat exchanger is used to absorb the heat of external heat source, expansion power generator is connect by Recuperative heat exchanger with condenser, Recuperative heat exchanger is for reducing passing through the temperature of the working medium of expansion power generator, condenser is connect with working medium pump, working medium pump is connect by Recuperative heat exchanger with afterheat heat exchanger, and Recuperative heat exchanger is additionally operable to be raised through the temperature of the working medium of working medium pump.Compared with prior art, cogeneration unit provided by the utility model is as a result of the Recuperative heat exchanger being connect respectively with expansion power generator and working medium pump, so can relative reduction or increase working medium temperature, so that the conversion of working medium heat is more steady, the generating efficiency of raising system, cost is reduced, it is highly practical.
Description
Technical field
The utility model is related to cogeneration technology field, in particular to a kind of cogeneration unit and energy saving
Generating equipment.
Background technology
Cogeneration technology is the technology that electric energy is converted to using thermal energy extra in production process.Cogeneration is not only
It is energy saving, also help environmental protection.The important equipment of cogeneration is afterheat heat exchanger.It is using in the working medium such as exhaust gas, waste liquid
Hot or flammable matter make heat source, production high-pressure working medium steam state is for generating electricity.Mainly have for the waste heat of power generation：More than high-temperature flue gas
Heat chemically reacts waste heat, exhaust gas, spent liquor recovery, low temperature exhaust heat (being less than 200 DEG C) etc..In addition, also useful extra differential pressure power generation
, it, can first gas delivery makes expanded steam turbine generator for user again after power generation for example, blast furnace gas is higher in furnace top pressure
With.
Waste heat is the energy that is not utilized in using energy source equipment under the conditions of certain economic technology, that is, more
Remaining, the discarded energy.At present, the device to be generated electricity using waste heat is of all kinds, and inventor is the study found that present power generation fills
The conversion for putting middle working medium heat is not steady enough, and the time of conversion is longer, and generating efficiency is low.
In view of this, the cogeneration unit and energy-saving generating plant for designing and manufacturing a kind of practicality and high efficiency particularly exist
It is particularly important in industrial production.
Utility model content
It is simple in structure the purpose of this utility model is to provide a kind of cogeneration unit, enable to internal working medium
The conversion of heat is more steady, improves the generating efficiency of system, reduces cost, highly practical, cost-effective.
The another object of the utility model is to provide a kind of energy-saving generating plant, simple in structure, enables to inside
The conversion of working medium heat is more steady, improves the generating efficiency of system, reduces cost, highly practical, cost-effective, user experience
Feel.
The utility model is realized using following technical solution.
A kind of cogeneration unit, including expansion power generator, afterheat heat exchanger, Recuperative heat exchanger, condenser and working medium pump,
Afterheat heat exchanger is connect with expansion power generator, and afterheat heat exchanger is used to absorb the heat of external heat source, and expansion power generator is by returning
Heat exchanger is connect with condenser, and Recuperative heat exchanger is for reducing passing through the temperature of the working medium of expansion power generator, condenser and work
Matter pump connection, working medium pump are connect by Recuperative heat exchanger with afterheat heat exchanger, and Recuperative heat exchanger is additionally operable to be raised through working medium pump
Working medium temperature.
Further, expansion power generator includes expanding machine and generator, and afterheat heat exchanger connect with expanding machine, expanding machine and
Generator connects.
Further, expanding machine include the first expanding machine and the second expanding machine, afterheat heat exchanger respectively with the first expanding machine
Connected with the second expanding machine, the first expanding machine and the second expanding machine be opposite be installed on generator shaft to both ends.
Further, expansion power generator further includes static-pressure air bearing, and expanding machine passes through static-pressure air bearing and generator
Connection.
Further, expanding machine is driven with generator coaxle, and the rotating speed of generator is at 5000 revs/min to 30000 revs/min
In the range of, can be matched with the synchronization of expanding machine.
Further, afterheat heat exchanger includes evaporator and preheater, and Recuperative heat exchanger connect with preheater, preheater and
Evaporator connects, and evaporator is connect with expansion power generator, and preheater is used to absorb the heat of external heat source, and working medium is carried out pre-
Heat, and the working medium after preheating is conveyed to evaporator, evaporator is used to absorb the heat of external heat source, and to the working medium after preheating
Gasify, and the working medium after gasification is conveyed to expansion power generator.
Further, evaporator is plate-type evaporator, and preheater is plate type preheater, to reduce the usage amount of working medium.
Further, condenser is plate-type condenser, to reduce the usage amount of working medium.
Further, working medium is made of pentafluoropropane or iso-butane material, to have better heat transfer effect.
A kind of energy-saving generating plant, including cogeneration unit and shell, cogeneration units' installation is in shell, waste heat
Generating set includes expansion power generator, afterheat heat exchanger, Recuperative heat exchanger, condenser and working medium pump, afterheat heat exchanger and expansion
Generator connects, and afterheat heat exchanger is used to absorb the heat of external heat source, and expansion power generator passes through Recuperative heat exchanger and condenser
Connection, Recuperative heat exchanger is for reducing by the temperature of the working medium of expansion power generator, and condenser is connect with working medium pump, and working medium pump leads to
It crosses Recuperative heat exchanger to connect with afterheat heat exchanger, Recuperative heat exchanger is additionally operable to be raised through the temperature of the working medium of working medium pump.
Cogeneration unit and energy-saving generating plant provided by the utility model have the advantages that：
Cogeneration unit provided by the utility model, afterheat heat exchanger are connect with expansion power generator, and afterheat heat exchanger is used
In the heat for absorbing external heat source, expansion power generator connect by Recuperative heat exchanger with condenser, Recuperative heat exchanger for reducing
By the temperature of the working medium of expansion power generator, condenser is connect with working medium pump, and working medium pump is exchanged heat by Recuperative heat exchanger and waste heat
Device connects, and Recuperative heat exchanger is additionally operable to be raised through the temperature of the working medium of working medium pump.Compared with prior art, the utility model carries
The cogeneration unit of confession is as a result of the Recuperative heat exchanger being connect respectively with expansion power generator and working medium pump, so being capable of phase
To reducing or increasing the temperature of working medium so that the conversion of working medium heat is more steady, improves the generating efficiency of system, reduces into
This, it is highly practical, it is cost-effective.
Energy-saving generating plant provided by the utility model, it is simple in structure including cogeneration unit, can relative reduction or
Person increases the temperature of working medium so that the conversion of working medium heat is more steady, improves the generating efficiency of system, reduces cost, practical
Property is strong, and cost-effective, user experience is good.
Description of the drawings
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of energy-saving generating plant that the utility model embodiment provides；
Fig. 2 is the structure composition block diagram of cogeneration unit that the utility model embodiment provides；
Fig. 3 is the structure diagram of expansion power generator in the cogeneration unit that the utility model embodiment provides；
Fig. 4 is the structure composition block diagram of afterheat heat exchanger in the cogeneration unit that the utility model embodiment provides.
Icon：10- energy-saving generating plants；100- cogeneration units；110- expansion power generators；111- expanding machines；1111-
First expanding machine；The second expanding machines of 1113-；113- generators；115- static-pressure air bearings；130- afterheat heat exchangers；131- steams
Send out device；133- preheaters；150- Recuperative heat exchangers；170- condensers；190- working medium pumps；200- shells.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the fingers such as term " interior ", " outer ", " on ", " under ", " level "
The orientation or position relationship shown is to be used to based on orientation shown in the drawings or position relationship or when utility model product use
The orientation or position relationship often put are for only for ease of description the utility model and simplify description rather than instruction or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this
The limitation of utility model.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and it is not intended that instruction
Or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Put ", " connected ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the utility model.In the absence of conflict, under
Feature in the embodiment stated can be combined with each other.
Embodiment
Fig. 1 is please referred to, the utility model embodiment provides a kind of energy-saving generating plant 10, for utilizing extraneous low temperature energy
Amount generates electricity.Its is simple in structure, the gradient of the conversion of internal working medium heat is enabled to reduce, conversion is more steady, carries
The generating efficiency of high system reduces cost, and energy conservation and environmental protection is highly practical, cost-effective, and user experience is good.The energy-saving power generation
Equipment 10 includes cogeneration unit 100 and shell 200.Cogeneration unit 100 is installed in shell 200, and shell 200 is to remaining
Thermal electric generator group 100 is protected, and cogeneration unit 100 is used to generate electricity using extraneous cryogenic energy.
Fig. 2 is please referred to, cogeneration unit 100 includes expansion power generator 110, afterheat heat exchanger 130, Recuperative heat exchanger
150th, condenser 170 and working medium pump 190.Afterheat heat exchanger 130 is connect with expansion power generator 110, and afterheat heat exchanger 130 is used to inhale
The heat of external heat source is received, and is evaporated working medium using the heat of external heat source, forms high-temperature gas working medium, then should
High-temperature gas working medium is conveyed to expansion power generator 110, to do work to expansion power generator 110 so that the rotation hair of expansion power generator 110
Electricity.Expansion power generator 110 is connect by Recuperative heat exchanger 150 with condenser 170, and temperature reduces after the acting of high-temperature gas working medium,
Form cryogenic gaseous working medium, Recuperative heat exchanger 150 for reducing by the temperature of the cryogenic gaseous working medium of expansion power generator 110,
So that the temperature of the cryogenic gaseous working medium further reduces, the cryogenic gaseous working medium that Recuperative heat exchanger 150 will further cool down again
Condenser 170 is conveyed to, realizes the steady progress of heat conversion.
Condenser 170 is connect with working medium pump 190, and condenser 170 is used to convert the cryogenic gaseous working medium further to cool down
For low-pressure liquid working medium, and the low-pressure liquid working medium is conveyed to working medium pump 190.Working medium pump 190 by Recuperative heat exchanger 150 with
Afterheat heat exchanger 130 connects, and working medium pump 190 is used to low-pressure liquid working medium being converted to high-pressure liquid working medium, and by the high pressure liquid
State working medium is conveyed to Recuperative heat exchanger 150, and Recuperative heat exchanger 150 is additionally operable to be raised through the high-pressure liquid working medium of working medium pump 190
Temperature so that the temperature raising of the high-pressure liquid working medium, the high-pressure liquid working medium that Recuperative heat exchanger 150 will heat up again is conveyed to
Afterheat heat exchanger 130 realizes the steady progress of heat conversion.Afterheat heat exchanger 130 is further to the high-pressure liquid working medium of heating
Heating, and then realize the evaporation of working medium, complete one cycle.
Fig. 3 is please referred to, expansion power generator 110 includes expanding machine 111, generator 113 and static-pressure air bearing 115.Waste heat
Heat exchanger 130 is connect with expanding machine 111, and high-temperature gas working medium is conveyed to expanding machine 111, so as to do work to expanding machine 111,
So that expanding machine 111 rotates.Expanding machine 111 is connect by static-pressure air bearing 115 with generator 113, to drive generator 113
Rotation, so as to fulfill generating function.The friction very little of static-pressure air bearing 115 can reduce mechanical energy losses, improve expansion
The generating efficiency of generator 110.
In the present embodiment, expanding machine 111 includes the first expanding machine 1111 and the second expanding machine 1113.Afterheat heat exchanger 130
It is connect respectively with the first expanding machine 1111 and the second expanding machine 1113,1113 opposite peace of the first expanding machine 1111 and the second expanding machine
Loaded on the axial both ends of generator 113, with when the first expanding machine 1111 and 1113 high speed rotation of the second expanding machine are worked
Relative maximum limit ground balancing axial thrust, reduces mechanical energy losses, promotes working efficiency, while increase in expanding machine 111
The service life of all parts.
It is worth noting that, in the present embodiment, expanding machine 111 and 113 coaxial transmission of generator, generator 113 is at a high speed
Generator, the rotating speed of generator 113 is in the range of 5000 revs/min to 30000 revs/min, with can be with the rotating speed of expanding machine 111
Simultaneously match relative to the prior art, reduces the link of intermediate gear box transmission, reduces mechanical energy losses, improve
Generating efficiency.
Fig. 4 is please referred to, afterheat heat exchanger 130 includes evaporator 131 and preheater 133.Recuperative heat exchanger 150 and preheater
133 connections, preheater 133 is conveyed to the high-pressure liquid working medium that will heat up.Preheater 133 is connect with evaporator 131, evaporator
131 connect with expansion power generator 110.Pair preheater 133 is used to absorb the heat of external heat source, and preheat working medium, i.e.,
The high-pressure liquid working medium of heating further heats, and the working medium after preheating is conveyed to evaporator 131.Evaporator 131 is used to inhale
The heat of external heat source is received, and is gasified to the working medium after preheating, and the high-temperature gas working medium after gasification is conveyed to expansion
Generator 110, convenient for doing work to expansion power generator 110.
In the present embodiment, evaporator 131 is plate-type evaporator, and preheater 133 is plate type preheater, and condenser 170 is plate
Formula condenser to reduce the usage amount of working medium, and can reduce space so that 100 compact beauty of cogeneration unit,
It is readily transported and installs.
In the present embodiment, working medium is made of pentafluoropropane or iso-butane material, to have better heat transfer effect, but simultaneously
This is not limited only to, the material that is made of working medium is not especially limited.
During the use of cogeneration unit 100, preheater 133 preheats working medium, and evaporator 131 will preheat
Working medium evaporation gasification afterwards forms high-temperature gas working medium, and high-temperature gas working medium does work to expansion power generator 110, and cooling forms low temperature
Gaseous working medium, Recuperative heat exchanger 150 further reduce the temperature of cryogenic gaseous working medium so that heat converts more steady, condenser
170 condense the cryogenic gaseous working medium further to cool down to form low-pressure liquid working medium, and working medium pump 190 does work to low-pressure liquid working medium
High-pressure liquid working medium is formed, the temperature that Recuperative heat exchanger 150 increases high-pressure liquid working medium makes it become to be more prone to gasify, and then
So that heat conversion is more steady, working medium returns preheater 133, completes one cycle.
The cogeneration unit 100 that the utility model embodiment provides, afterheat heat exchanger 130 connect with expansion power generator 110
It connects, afterheat heat exchanger 130 is used to absorb the heat of external heat source, and expansion power generator 110 passes through Recuperative heat exchanger 150 and condenser
170 connections, Recuperative heat exchanger 150 is for reducing passing through the temperature of the working medium of expansion power generator 110, condenser 170 and working medium pump
190 connections, working medium pump 190 are connect by Recuperative heat exchanger 150 with afterheat heat exchanger 130, and Recuperative heat exchanger 150 is additionally operable to increase
Pass through the temperature of the working medium of working medium pump 190.Compared with prior art, cogeneration unit 100 provided by the utility model due to
Employ the Recuperative heat exchanger 150 being connect respectively with expansion power generator 110 and working medium pump 190, thus can relative reduction or
Increase the temperature of working medium so that the conversion of working medium heat is more steady, improves the generating efficiency of system, reduces cost, practicability
By force, it is cost-effective so that 10 energy conservation and environmental protection of energy-saving generating plant, operation is more smooth, is welcome by user.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of cogeneration unit, which is characterized in that including expansion power generator, afterheat heat exchanger, Recuperative heat exchanger, condenser
And working medium pump, the afterheat heat exchanger are connect with the expansion power generator, the afterheat heat exchanger is used to absorb external heat source
Heat, the expansion power generator are connect by the Recuperative heat exchanger with the condenser, the Recuperative heat exchanger for reducing
By the temperature of the working medium of the expansion power generator, the condenser is connect with the working medium pump, and the working medium pump passes through described
Recuperative heat exchanger is connect with the afterheat heat exchanger, and the Recuperative heat exchanger is additionally operable to be raised through the work of the working medium pump
The temperature of matter.
2. cogeneration unit according to claim 1, which is characterized in that the expansion power generator includes expanding machine and hair
Motor, the afterheat heat exchanger are connect with the expanding machine, and the expanding machine is connect with the generator.
3. cogeneration unit according to claim 2, which is characterized in that the expanding machine includes the first expanding machine and the
Two expanding machines, the afterheat heat exchanger are connect respectively with first expanding machine and second expanding machine, first expansion
Machine and second expanding machine be opposite be installed on the generator shaft to both ends.
4. cogeneration unit according to claim 2, which is characterized in that the expansion power generator further includes static pressure air-bearing
Bearing, the expanding machine are connect by the static-pressure air bearing with the generator.
5. cogeneration unit according to claim 2, which is characterized in that the expanding machine is passed with the generator coaxle
Dynamic, the rotating speed of the generator is in the range of 5000 revs/min to 30000 revs/min.
6. cogeneration unit according to claim 1, which is characterized in that the afterheat heat exchanger is including evaporator and in advance
Hot device, the Recuperative heat exchanger are connect with the preheater, and the preheater is connect with the evaporator, the evaporator and institute
Expansion power generator connection is stated, the preheater is used to absorb the heat of external heat source, and the working medium is preheated, and will be pre-
The working medium after heat is conveyed to the evaporator, and the evaporator is used to absorb the heat of external heat source, and to preheating after
The working medium gasifies, and the working medium after gasification is conveyed to the expansion power generator.
7. cogeneration unit according to claim 6, which is characterized in that the evaporator is plate-type evaporator, described
Preheater is plate type preheater.
8. cogeneration unit according to claim 1, which is characterized in that the condenser is plate-type condenser.
9. cogeneration unit according to claim 1, which is characterized in that the working medium is by pentafluoropropane or iso-butane
Material is made.
10. a kind of energy-saving generating plant, which is characterized in that including cogeneration unit and shell, the cogeneration unit peace
Loaded in the shell, the cogeneration unit include expansion power generator, afterheat heat exchanger, Recuperative heat exchanger, condenser and
Working medium pump, the afterheat heat exchanger are connect with the expansion power generator, and the afterheat heat exchanger is used to absorb the heat of external heat source
Amount, the expansion power generator are connect by the Recuperative heat exchanger with the condenser, and the Recuperative heat exchanger is for reducing logical
The temperature of the working medium of the expansion power generator is crossed, the condenser is connect with the working medium pump, and the working medium pump passes through described time
Heat exchanger is connect with the afterheat heat exchanger, and the Recuperative heat exchanger is additionally operable to be raised through the working medium of the working medium pump
Temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693967.8U CN207526538U (en) | 2017-12-07 | 2017-12-07 | A kind of cogeneration unit and energy-saving generating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693967.8U CN207526538U (en) | 2017-12-07 | 2017-12-07 | A kind of cogeneration unit and energy-saving generating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526538U true CN207526538U (en) | 2018-06-22 |
Family
ID=62577856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721693967.8U Expired - Fee Related CN207526538U (en) | 2017-12-07 | 2017-12-07 | A kind of cogeneration unit and energy-saving generating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526538U (en) |
-
2017
- 2017-12-07 CN CN201721693967.8U patent/CN207526538U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191207 |