CN207485491U - A kind of gas fired-boiler fume afterheat power generation binary cycle system device - Google Patents
A kind of gas fired-boiler fume afterheat power generation binary cycle system device Download PDFInfo
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- CN207485491U CN207485491U CN201721493441.5U CN201721493441U CN207485491U CN 207485491 U CN207485491 U CN 207485491U CN 201721493441 U CN201721493441 U CN 201721493441U CN 207485491 U CN207485491 U CN 207485491U
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- heat exchanger
- condenser
- direct contact
- absorber
- power generation
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Abstract
The utility model is related to a kind of gas fired-boiler fume afterheat power generation binary cycle system devices, the residual-heat exchanger of heating conduction oil is provided in the system and device, is in direct contact heat exchanger, screw type expansion machine, reheater, absorber and condenser, screw type expansion machine setting is equipped with generator；Residual-heat exchanger access is in direct contact heat exchanger, is in direct contact heat exchanger access screw type expansion machine, and screw type expansion machine accesses absorber by reheater, and absorber access condenser, condenser, which takes back, is in direct contact heat exchanger.For the utility model using the uniform conduction oil that conducts heat, thermal stability is good, and corrosion-free to equipment and pipeline, replaces pressure piping system with low pressure pipeline system, reduces investment；Heat exchange efficiency is improved using the method that conduction oil and ammonia-water mixture are in direct contact heat exchange, because the steam specific volume of organic working medium, enthalpy drop are small, so the diameter of the size of required steam turbine, discharge duct size and the pipeline in condenser is smaller, cost is greatly saved.
Description
Technical field
The utility model is related to a kind of energy conversion devices, and in particular to a kind of gas fired-boiler fume afterheat power generation Two-way Cycle
System and device.
Background technology
In the gas fired-boiler course of work, the energy dissipation in tail gas is than more serious, and presently boiler exhaust gas is low in
Utilization rate is relatively low in terms of warm UTILIZATION OF VESIDUAL HEAT IN, and domestic main heat recovery mode can be summarized simply as follows " fume afterheat heating
The condensation water of unit heat regenerative system " " heating hot net water " " First air of heating boiler, Secondary Air ".These technologies base in principle
All it is that UTILIZATION OF VESIDUAL HEAT IN is carried out by hot swapping, heat to power output technology, cooling and warming technology in sheet.In China, more than high, medium temperature
Heat utilization technology equipment is not popularized effectively, and low temperature exhaust heat is discarded substantially because corresponding using technology is immature,
Cause waste heat overall utilization rate low.Although wherein by discarded 200 DEG C even less than 300 DEG C of low-temperature industrial waste heat grade
It is low, high using technical difficulty, but the waste heat energy with significant proportion.
Invention content
The purpose of this utility model is to provide a kind of gas fired-boiler fume afterheat power generation binary cycle system device, based on organic
The heat power generating system of Rankine cycle ORC, economy efficiently utilize low-temperature flue gas waste heat.
Technical solution is used by the utility model：
A kind of gas fired-boiler fume afterheat power generation binary cycle system device, it is characterised in that：
It is provided with that the residual-heat exchanger of heating conduction oil, to be in direct contact heat exchanger, screw swollen in the system and device
Swollen machine, reheater, absorber and condenser, screw type expansion machine setting are equipped with generator；
Residual-heat exchanger access is in direct contact heat exchanger, is in direct contact heat exchanger access screw type expansion machine, screw rod
Formula expanding machine accesses absorber by reheater, and absorber access condenser, condenser, which takes back, is in direct contact heat exchanger.
Preheater is provided in the system and device；
It preheater and is in direct contact between heat exchanger and is provided with two-way pipeline, condenser is directly connect by preheater access
Touch heat exchanger；
Preheater is connect with residual-heat exchanger.
Separator and distiller are provided in the system and device；
Absorber accesses separator, and separator accesses distiller by reheater all the way, then accesses condenser, and another way is straight
Access condenser.
Condensation pump is provided on pipeline between absorber and separator.
Distiller takes back absorber by throttle valve.
Condensator outlet is provided with circulating pump.
Check-valves is provided between condensation pump and separator.
Check-valves is provided between circulating pump and preheater.
The outlet of residual-heat exchanger and entrance are both provided with shut-off valve；
It is in direct contact between heat exchanger and preheater and is provided with shut-off valve；
It is in direct contact between heat exchanger and screw type expansion machine and is provided with shut-off valve；
Shut-off valve is provided between reheater and absorber；
Shut-off valve is provided between circulating pump and preheater.
Shut-off valve is provided between separator and reheater；
Shut-off valve is provided between separator and condenser；
Shut-off valve is provided between distiller and condenser.
The utility model has the following advantages：
The utility model exhaust waste heat generation system uses conduction oil in itself, and as intermediate heat transfer working medium, conduction oil is 300
It still can not be vaporized under conditions of DEG C and keep normal pressure, steam-laden pressure at this time has been up to 8.5MPa.Less than 300 DEG C
（Namely low temperature environment）, original heat carrier vapor is replaced with conduction oil, just pressure piping system can be become low-voltage tube
Road system thus reduces investment, reduces cost.In addition conduction oil also has heat transfer uniformly, and thermal stability is good and excellent
Thermal conduction characteristic.Conduction oil is to general common carbon steel equipment and the substantially corrosion-free effect of pipeline, it is not necessary to using similar steam
The processing procedure complicated to water desalination, deoxygenation etc. of system saves great amount of cost, and facilitates with simple system conveying
Advantage.Therefore the unit heat transfer efficiency by the use of conduction oil as working medium is higher.Next can be used screw type expansion machine and substitutes commonly
Steam turbine, the relatively common steam turbine of structure is much simpler, and rated power is small, and the engine utilized for low enthalpy energy source and power is special
Not Shi Yong, therefore to organic working medium steam do work it is just more applicable.Because the steam specific volume of organic working medium, enthalpy drop are small, so institute
The diameter of the size of the steam turbine needed, discharge duct size and the pipeline in air-cooled condenser is smaller.Ammonium hydroxide used mixes
Close working medium（Find that ammonium hydroxide generating efficiency when temperature is more than 110 DEG C is more than other working medium with experiment by tabling look-up）With vapor phase
Than since the velocity of sound of ammonia water mixture is low, in low blades speed, advantageous air force cooperation can be obtained, in 50Hz
Higher turbine efficiency can be generated, it is not necessary to toothing roller box.Since rotating speed is low, therefore noise is also small.Conduction oil may be used
The method of heat exchange is in direct contact with ammonia-water mixture, can further improve heat exchange efficiency.It is preferentially cold using air in water-deficient area
But condenser.The air-cooled condenser that tail gas power plant uses is obtained than the small of air-cooled condenser that vapor power plant uses
More, price is also much lower.
Description of the drawings
Fig. 1 is the utility model schematic device.
In figure：1. residual-heat exchanger, 2. are in direct contact heat exchanger, 3. preheaters, 4. screw type expansion machines, 5. power generations
Machine, 6. reheaters, 7. absorbers, 8. condensation pumps, 9. separators, 10. distillers, 11. throttle valves, 12. condensers, 13. follow
Ring pumps, 14. check-valves, 15. shut-off valves.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model is related to a kind of gas fired-boiler fume afterheat power generation binary cycle system device, it is provided in system and device
Residual-heat exchanger 1 is in direct contact heat exchanger 2, screw type expansion machine 4, reheater 6, absorber 7 and condenser 12, screw
The setting of expanding machine 4 is equipped with generator 5.The access of residual-heat exchanger 1 is in direct contact heat exchanger 2, is in direct contact heat exchanger 2 and connects
Enter screw type expansion machine 4, screw type expansion machine 4 accesses absorber 7 by reheater 6, and absorber 7 accesses condenser 12, condensation
Device 12, which takes back, is in direct contact heat exchanger 2.
Preheater 3 is additionally provided in the system and device；Preheater 3 and being in direct contact between heat exchanger 2 is provided with double
To pipeline, condenser 12 is in direct contact heat exchanger 2 by the access of preheater 3；Preheater 3 is connect with residual-heat exchanger 1.
Separator 9 and distiller 10 are additionally provided in the system and device；Absorber 7 accesses separator 9, separator 9 one
Distiller 10 is accessed in road by reheater 6, then accesses condenser 12, and another way is directly accessed condenser 12.
Condensation pump 8 is provided on pipeline between absorber 7 and separator 9.Distiller 10 takes back suction by throttle valve 11
Receive device 7.The outlet of condenser 12 is provided with circulating pump 13.
Check-valves 14 is provided between condensation pump 8 and separator 9.Check-valves is provided between circulating pump 13 and preheater 3
14。
The outlet of residual-heat exchanger 1 and entrance are both provided with shut-off valve 15；Be in direct contact heat exchanger 2 and preheater 3 it
Between be provided with shut-off valve 15；It is in direct contact between heat exchanger 2 and screw type expansion machine 4 and is provided with shut-off valve 15；Reheater 6 with
Shut-off valve 15 is provided between absorber 7；Shut-off valve 15 is provided between circulating pump 13 and preheater 3；Separator 9 and reheater
Shut-off valve 15 is provided between 6；Shut-off valve 15 is provided between separator 9 and condenser 12；Distiller 10 and condenser 12 it
Between be provided with shut-off valve 15.
System and device operational process is：
Residual-heat exchanger 1 carries out countercurrent flow and (is conducive to cascaded utilization of energy and reduces the production that irreversible entropy increases) heating
Conduction oil, then conduction oil (need to consider being in direct contact the inside of heat exchanger 2 and be directly mixed heat exchange with ammonia water mixture
The compatibility of working medium and conduction oil), it does work after ammonia water mixture evaporation into screw type expansion machine 4, the ammonium hydroxide after acting mixes
It closes working medium tentatively to be cooled down by absorber 7, is supplied to separator 9 by condensing pump 8, working medium is carried out to point of different conditions
From, to reach distiller 10 state working medium reheated by reheater 6, then distiller 10 by after distillation by working medium
The condensation of ammonia water mixture is completed by condenser 12, it is made to re-form the working medium solution of certain high concentration, passes through circulating pump
13 are supplied to preheater 3 exchanges heat with conduction oil, is finally returned to be in direct contact in heat exchanger 2 and is mixed with conduction oil
Form a cycle.
The utility model replaces original heat carrier vapor with conduction oil, just can pressure piping system be become low-voltage tube
Road system thus reduces investment, reduces cost.Conduction oil is to general common carbon steel equipment and the substantially corrosion-free work of pipeline
With, it does not need to use the processing procedure complicated to water desalination, deoxygenation etc. of similar vapour system, saves great amount of cost, and
It is convenient to be conveyed with simple system.Conduction oil has heat transfer uniformly, the good and excellent thermal conduction characteristic of thermal stability, with ammonium hydroxide work
The method that matter is in direct contact heat exchange, can further improve heat exchange efficiency.
In the utility model, the steam specific volume of working medium, enthalpy drop are small, so required steam turbine, discharge duct and air-cooled
The diameter of pipeline in condenser is smaller.Residual-heat exchanger titanium plate and the compression moulding technology of stainless steel plate make heat exchanger
Fin, it is therefore prevented that corrosion of the smoke condensation to equipment.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (10)
- The binary cycle system device 1. a kind of gas fired-boiler fume afterheat generates electricity, it is characterised in that：The residual-heat exchanger of heating conduction oil is provided in the system and device（1）, be in direct contact heat exchanger（2）, screw Expanding machine（4）, reheater（6）, absorber（7）And condenser（12）, screw type expansion machine（4）Setting is equipped with generator（5）；Residual-heat exchanger（1）Access is in direct contact heat exchanger（2）, it is in direct contact heat exchanger（2）Access screw type expansion machine （4）, screw type expansion machine（4）Pass through reheater（6）Access absorber（7）, absorber（7）Access condenser（12）, condenser （12）It takes back and is in direct contact heat exchanger（2）.
- 2. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 1, it is characterised in that：Preheater is provided in the system and device（3）；Preheater（3）With being in direct contact heat exchanger（2）Between be provided with two-way pipeline, condenser（12）Pass through preheater（3） Access is in direct contact heat exchanger（2）；Preheater（3）With residual-heat exchanger（1）Connection.
- 3. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 1, it is characterised in that：Separator is provided in the system and device（9）And distiller（10）；Absorber（7）Access separator（9）, separator（9）Pass through reheater all the way（6）Access distiller（10）, then access cold Condenser（12）, another way is directly accessed condenser（12）.
- 4. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 3, it is characterised in that：Absorber（7）With separator（9）Between pipeline on be provided with condensation pump（8）.
- 5. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 3, it is characterised in that：Distiller（10）Pass through throttle valve（11）Take back absorber（7）.
- 6. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 2, it is characterised in that：Condenser（12）Outlet is provided with circulating pump（13）.
- 7. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 4, it is characterised in that：Condensation pump（8）And separator（9）Between be provided with check-valves（14）.
- 8. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 6, it is characterised in that：Circulating pump（13）And preheater（3）Between be provided with check-valves（14）.
- 9. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 6, it is characterised in that：Residual-heat exchanger（1）Outlet and entrance be both provided with shut-off valve（15）；It is in direct contact heat exchanger（2）With preheater（3）Between be provided with shut-off valve（15）；It is in direct contact heat exchanger（2）With screw type expansion machine（4）Between be provided with shut-off valve（15）；Reheater（6）With absorber（7）Between be provided with shut-off valve（15）；Circulating pump（13）With preheater（3）Between be provided with shut-off valve（15）.
- 10. a kind of gas fired-boiler fume afterheat power generation binary cycle system device according to claim 3, it is characterised in that：Separator（9）With reheater（6）Between be provided with shut-off valve（15）；Separator（9）With condenser（12）Between be provided with shut-off valve（15）；Distiller（10）With condenser（12）Between be provided with shut-off valve（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721493441.5U CN207485491U (en) | 2017-11-10 | 2017-11-10 | A kind of gas fired-boiler fume afterheat power generation binary cycle system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721493441.5U CN207485491U (en) | 2017-11-10 | 2017-11-10 | A kind of gas fired-boiler fume afterheat power generation binary cycle system device |
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| Publication Number | Publication Date |
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| CN207485491U true CN207485491U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721493441.5U Expired - Fee Related CN207485491U (en) | 2017-11-10 | 2017-11-10 | A kind of gas fired-boiler fume afterheat power generation binary cycle system device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635765A (en) * | 2022-03-28 | 2022-06-17 | 西安热工研究院有限公司 | Novel energy storage and energy utilization system and method for storing heat by using retired coal-fired boiler |
-
2017
- 2017-11-10 CN CN201721493441.5U patent/CN207485491U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635765A (en) * | 2022-03-28 | 2022-06-17 | 西安热工研究院有限公司 | Novel energy storage and energy utilization system and method for storing heat by using retired coal-fired boiler |
| CN114635765B (en) * | 2022-03-28 | 2024-03-12 | 西安热工研究院有限公司 | Novel energy storage and energy utilization system and method for storing heat by utilizing retired coal-fired boiler |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20181110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |