CN101881195A - Linkage system of high temperature-low temperature screw expansion power machine - Google Patents
Linkage system of high temperature-low temperature screw expansion power machine Download PDFInfo
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- CN101881195A CN101881195A CN 201010205211 CN201010205211A CN101881195A CN 101881195 A CN101881195 A CN 101881195A CN 201010205211 CN201010205211 CN 201010205211 CN 201010205211 A CN201010205211 A CN 201010205211A CN 101881195 A CN101881195 A CN 101881195A
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Abstract
The invention discloses a linkage system of a high temperature-low temperature screw expansion power machine, which comprises high temperature circulation and low temperature circulation, wherein the high temperature circulation comprises a heat source body, a first screw expansion power machine and a condensation evaporator, and the heat source body, the first screw expansion power machine and the condensation evaporator are sequentially connected by pipelines to form a high-temperature circulation path; the low temperature circulation comprises the condensation evaporator in the high temperature circulation, a second screw expansion power machine and a condenser, and the condensation evaporator, the second screw expansion power machine and the condenser are sequentially connected by pipelines to form a low-temperature working medium circulation path; and the condenser is provided with a cooling path for cooling the circulated working medium in the low-temperature working medium circulation path. The high temperature-low temperature screw expansion power machine provided by the invention can realize a high temperature-low temperature circulation mode, a low temperature circulation mode and a high temperature circulation mode, and can more fully utilize waste heat resources.
Description
Technical field
The present invention relates to the expansion motor system field, specifically be meant a kind of high temperature-low temperature screw expansion motor linked system.
Background technique
Screw expansion motor mainly is the power sources such as steam, hot water, hydrothermal solution or stream-liquid two-phase flow body that utilize in the industry, with thermal power transfer is power, drive generator for electricity generation, or directly drive machinery such as blower fan, water pump, compressor, stirrer, coal pulverizer, flour mill, substitute motor, or substitute the recovery power such as expansion valve of large-scale refrigerator.Screw expansion motor comprises two (yin, yang) screw rotors, shell, bearing and seal arrangements etc.During work, the heat source body medium is introduced into machine inner screw teeth groove, and lead-screw rotates, and along with screw rod rotates, volume constantly increases, and heat source body step-down cooling is expanded and done work, and discharges gas at last, from main shaft sun screw rod output power, drives generator.
Current, Chinese national economy faces energy saving and environmental protection two is challenged greatly, and sufficiently and reasonably utilizing the energy is the key of sustainable development.The characteristics of China's energy resource structure, the energy fully do not reach cascade utilization, and the overall utilization ratio of the energy is lower, and residual heat resources are abundant still not to be made full use of.For example iron and steel metallurgical industry, thermoelectric power industry, petroleum chemical industry, cement industry, papermaking printing industry, and other need the industry of industrial boiler, the utilization of residual heat resources has huge market potential.This has proved absolutely that not only China strengthens the significance and the urgency of energy conservation, has also embodied the application prospect of screw expansion motor simultaneously.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is, a kind of high temperature-low temperature screw expansion motor linked system is provided, and can realize high temperature-low temperature circulation, low temperature circulation, three kinds of patterns of high temperature circulation, can utilize residual heat resources more fully.
In order to solve above technical problem, high temperature provided by the invention-low temperature screw expansion motor linked system comprises the circulation of high temperature circulation and low temperature;
Described high temperature circulation comprises heat source body, first screw expansion motor, condenser/evaporator, and described heat source body, first screw expansion motor, condenser/evaporator are in turn connected to form the high temperature circulation path by pipeline;
Described low temperature circulation comprises condenser/evaporator, second screw expansion motor, the condenser in the described high temperature circulation, and described condenser/evaporator, second screw expansion motor, condenser are in turn connected to form the cryogenic fluid peripheral passage by pipeline;
Described condenser is provided with the coolant path that is used to cool off the described working medium that circulates in the cryogenic fluid peripheral passage.
Preferably, be provided with first bypass between described heat source body and the described condenser/evaporator, described first bypass is provided with first control valve.
Preferably, be provided with second bypass between described condenser/evaporator and the described condenser, described second bypass is provided with second control valve.
Preferably, described high temperature-low temperature screw expansion motor linked system also comprises preheater, one end of described preheater is arranged between described low temperature circuit condenser and the condenser/evaporator, and the other end of described preheater is arranged between the condenser/evaporator and heat source body of described high temperature circulation.
Preferably, be provided with water tank between described preheater and the described heat source body, described water tank is connected with condensate pump.
Preferably, be provided with the 3rd bypass between described water tank and the described heat source body, described the 3rd bypass is provided with the 3rd control valve.
Preferably, be provided with between described condenser and the described preheater and hold the working medium jar, the described working medium jar that holds is connected with working medium pump.
Preferably, described holding between working medium jar and the described preheater is provided with the 4th bypass, and described the 4th bypass is provided with the 4th control valve.
Preferably, described coolant path comprises the condenser in cold water source body, water supply pump and the circulation of described low temperature, and described cold water source body, water supply pump and described condenser are connected to form the path of cooling working medium by pipeline.
Preferably, described first screw expansion motor, second screw expansion motor are connected with generator or load respectively, are respectively arranged with speed reducer between described first screw expansion motor, second screw expansion motor and described generator or the load.
High temperature provided by the invention-low temperature screw expansion motor linked system can be realized high temperature-low temperature circulation, low temperature circulation, three kinds of patterns of high temperature circulation, can utilize residual heat resources more fully.
Description of drawings
Fig. 1 is the structural representation of high temperature-low temperature screw expansion motor linked system among the present invention.
Embodiment
For those skilled in the art can understand technological scheme provided by the present invention better, set forth below in conjunction with specific embodiment.
See also Fig. 1, this figure is the structural representation of high temperature among the present invention-low temperature screw expansion motor linked system.
High temperature provided by the invention-low temperature screw expansion motor linked system comprises the circulation of high temperature circulation and low temperature; High temperature circulation comprises heat source body 1, first screw expansion motor 8, condenser/evaporator 3, and heat source body 1, first screw expansion motor 8, condenser/evaporator 3 are in turn connected to form the high temperature circulation path by pipeline; The low temperature circulation comprises condenser/evaporator 3, second screw expansion motor 10, the condenser 12 in the high temperature circulation, and condenser/evaporator 3, second screw expansion motor 10, condenser 12 are in turn connected to form the cryogenic fluid peripheral passage by pipeline; Condenser 12 is provided with the coolant path that is used to cool off the working medium that circulates in the cryogenic fluid peripheral passage; Coolant path comprises the condenser 12 in cold water source body 14, water supply pump 17 and the low temperature circulation, and cold water source body 14, water supply pump 17 and condenser 12 are connected to form the path of cooling working medium by pipeline.
First screw expansion motor 8, second screw expansion motor 10 are connected with respectively between generator 6, motor 5, the first screw expansion motors 8, second screw expansion motor 10 and generator 6, the generator 5 and are provided with speed reducer.
Be provided with first bypass between heat source body 1 and the condenser/evaporator 3, first bypass is provided with first control valve 2; Be provided with second bypass between condenser/evaporator 3 and the condenser 12, second bypass is provided with second control valve 11.
One end of preheater 4 is arranged between low temperature circuit condenser 12 and the condenser/evaporator 3, and the other end of preheater 4 is arranged between the condenser/evaporator 3 and heat source body 1 of high temperature circulation.
Be provided with water tank 13 between preheater 4 and the heat source body 1, water tank 13 is connected with condensate pump 9.Be provided with the 3rd bypass between water tank 13 and the heat source body 1, the 3rd bypass is provided with the 3rd control valve 7.Be provided with between condenser 12 and the preheater 4 and hold working medium jar 18, hold working medium jar 18 and be connected with working medium pump 16.Hold between working medium jar 18 and the preheater 4 and be provided with the 4th bypass, the 4th bypass is provided with the 4th control valve 15.
The thermal source that heat source body 1 provides can be steam, hot water, hydrothermal solution or stream-liquid two-phase flow body etc., and present embodiment is that example is done explanation with hot water.Low temperature circuit working medium is low boiling working fluid.
Special needs to be pointed out is that the high temperature among the present invention, low temperature are relative.
High temperature provided by the invention-low temperature screw expansion motor linked system can be realized high temperature-low temperature circulation, low temperature circulation, three kinds of patterns of high temperature circulation, and concrete work operating mode flow process is as follows:
1, high temperature-low temperature circulation mode:
When high temperature-when low temperature screw expansion motor linked system was in this pattern, first control valve 2, second control the 11, the 3rd control valve 7 and the 4th control valve 15 were closed.Hot water is successively along pipeline flow through first screw expansion motor 8, condenser/evaporator 3, preheater 4, water tank 13, by condensate pump 9 water of condensation of 13 li of water tanks pumped into heat source body 1 again, and this is a high temperature circulation.Hot water circuit enters 8 actings of first screw expansion motor, and first screw expansion motor 8 drives generator 6 generatings.
Low boiling working fluid along pipeline flow through condenser/evaporator 3, second screw expansion motor 10, vaporizer 12, hold working medium jar 18, by working medium pump 16 low boiling working fluid is pumped into preheater 4 preheatings again, this is the low temperature circulation.Hot water is from the condenser/evaporator 3 of flowing through after first screw expansion motor 8 flows out, and hot water heats low boiling working fluid condenser/evaporator 3 in, and the low boiling working fluid temperature is raise, the temperature that reaches capacity, generation saturated air or gas-liquid two-phase.The heated working medium that flows out from condenser/evaporator 3 enters 10 actings of second screw expansion motor, and second screw expansion motor 10 drives generator 5 generatings.Low boiling working fluid after the acting flows out from second screw expansion motor 10 and enters condenser 12, in condenser by cooling water with the low boiling working fluid condensation, enter and hold in the working medium jar 18.
2, high temperature mode:
When high temperature-when low temperature screw expansion motor linked system was in this pattern, first control valve 2, the 3rd control valve 7 and the 4th control valve 15 were closed, second control valve 11 is opened.Hot water is successively along pipeline flow through first screw expansion motor 8, condenser/evaporator 3, preheater 4, water tank 13, by condensate pump 9 water of condensation of 13 li of water tanks pumped into heat source body 1 again.Hot water circuit enters 8 actings of first screw expansion motor, and first screw expansion motor 8 drives generator 6 generatings.Low boiling working fluid along pipeline flow through condenser/evaporator 3, vaporizer 12, hold working medium jar 18, by working medium pump 16 low boiling working fluid is pumped into preheater 4 preheatings again.Low boiling working fluid in condenser 12 by cooling water with the low boiling working fluid condensation, enter and hold in the working medium jar 18.
3, low temperature circulation:
When high temperature-when low temperature screw expansion motor linked system was in this pattern, second control valve 11, the 3rd control valve 7 and the 4th control valve 15 were closed, first control valve 2 is opened.Hot water is successively along pipeline flow through condenser/evaporator 3, preheater 4, water tank 13, by condensate pump 9 water of condensation of 13 li of water tanks pumped into heat source body 1 again.Low boiling working fluid along pipeline flow through condenser/evaporator 3, second screw expansion motor 10, vaporizer 12, hold working medium jar 18, by working medium pump 16 low boiling working fluid is pumped into preheater 4 preheatings again.Hot water is from heat source body 1 condenser/evaporator 3 of flowing through, and hot water heats low boiling working fluid in condenser/evaporator 3, and the low boiling working fluid temperature is raise, and the temperature that reaches capacity generates saturated air or gas-liquid two-phase.The heated working medium that flows out from condenser/evaporator 3 enters 10 actings of second screw expansion motor, and second screw expansion motor 10 drives generator 5 generatings.Low boiling working fluid after the acting flows out from second screw expansion motor 10 and enters condenser 12, in condenser 12 by cooling water with the low boiling working fluid condensation, enter and hold in the working medium jar.
High temperature provided by the invention-low temperature screw expansion motor linked system, it is big to have the heat recovery amount, the utilization ratio advantages of higher.
Certainly, more than only be preferred implementation of the present invention, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. high temperature-low temperature screw expansion motor linked system is characterized in that, comprises the circulation of high temperature circulation and low temperature;
Described high temperature circulation comprises heat source body, first screw expansion motor, condenser/evaporator, and described heat source body, first screw expansion motor, condenser/evaporator are in turn connected to form the high temperature circulation path by pipeline;
Described low temperature circulation comprises condenser/evaporator, second screw expansion motor, the condenser in the described high temperature circulation, and described condenser/evaporator, second screw expansion motor, condenser are in turn connected to form the cryogenic fluid peripheral passage by pipeline;
Described condenser is provided with the coolant path that is used to cool off the described working medium that circulates in the cryogenic fluid peripheral passage.
2. high temperature according to claim 1-low temperature screw expansion motor linked system is characterized in that, is provided with first bypass between described heat source body and the described condenser/evaporator, and described first bypass is provided with first control valve.
3. high temperature according to claim 1-low temperature screw expansion motor linked system is characterized in that, is provided with second bypass between described condenser/evaporator and the described condenser, and described second bypass is provided with second control valve.
4. high temperature according to claim 1-low temperature screw expansion motor linked system, it is characterized in that, also comprise preheater, one end of described preheater is arranged between described low temperature circuit condenser and the condenser/evaporator, and the other end of described preheater is arranged between the condenser/evaporator and heat source body of described high temperature circulation.
5. high temperature according to claim 4-low temperature screw expansion motor linked system is characterized in that, is provided with water tank between described preheater and the described heat source body, and described water tank is connected with condensate pump.
6. high temperature according to claim 5-low temperature screw expansion motor linked system is characterized in that, is provided with the 3rd bypass between described water tank and the described heat source body, and described the 3rd bypass is provided with the 3rd control valve.
7. high temperature according to claim 4-low temperature screw expansion motor linked system is characterized in that, is provided with between described condenser and the described preheater and holds the working medium jar, and the described working medium jar that holds is connected with working medium pump.
8. high temperature according to claim 7-low temperature screw expansion motor linked system is characterized in that, described holding between working medium jar and the described preheater is provided with the 4th bypass, and described the 4th bypass is provided with the 4th control valve.
9. high temperature according to claim 1-low temperature screw expansion motor linked system, it is characterized in that, described coolant path comprises the condenser in cold water source body, water supply pump and the circulation of described low temperature, and described cold water source body, water supply pump and described condenser are connected to form the path of cooling working medium by pipeline.
10. high temperature according to claim 1-low temperature screw expansion motor linked system, it is characterized in that, described first screw expansion motor, second screw expansion motor are connected with generator or load respectively, are respectively arranged with speed reducer between described first screw expansion motor, second screw expansion motor and described generator or the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010205211 CN101881195A (en) | 2010-06-18 | 2010-06-18 | Linkage system of high temperature-low temperature screw expansion power machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010205211 CN101881195A (en) | 2010-06-18 | 2010-06-18 | Linkage system of high temperature-low temperature screw expansion power machine |
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| CN101881195A true CN101881195A (en) | 2010-11-10 |
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| CN 201010205211 Pending CN101881195A (en) | 2010-06-18 | 2010-06-18 | Linkage system of high temperature-low temperature screw expansion power machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321176A (en) * | 2015-07-01 | 2017-01-11 | 阿耐思特岩田株式会社 | Power generation system and power generation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197606A (en) * | 1986-02-25 | 1987-09-01 | Hisaka Works Ltd | Heat recovery device |
| CN101532402A (en) * | 2009-04-22 | 2009-09-16 | 天津大学 | Dual-circulation screw expansion motor system |
| CN201835879U (en) * | 2010-06-18 | 2011-05-18 | 江西华电电力有限责任公司 | Linkage system of high-temperature/low-temperature screw expansion power machine |
-
2010
- 2010-06-18 CN CN 201010205211 patent/CN101881195A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197606A (en) * | 1986-02-25 | 1987-09-01 | Hisaka Works Ltd | Heat recovery device |
| CN101532402A (en) * | 2009-04-22 | 2009-09-16 | 天津大学 | Dual-circulation screw expansion motor system |
| CN201835879U (en) * | 2010-06-18 | 2011-05-18 | 江西华电电力有限责任公司 | Linkage system of high-temperature/low-temperature screw expansion power machine |
Non-Patent Citations (2)
| Title |
|---|
| 《2007中国科协年会2.3分会《生物质能技术发展及应用》研讨会论文集》 20071231 胡亮光等 创新型节能减排动力机--螺杆膨胀动力机 第78页，图12 , 2 * |
| 《地热能的战略开发--2009国际地热协会西太平洋分会地热研讨会论文集》 20091231 胡亮光等 《中低温地热能螺杆膨胀发电机组与应用》 第167-168页，图6 , 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321176A (en) * | 2015-07-01 | 2017-01-11 | 阿耐思特岩田株式会社 | Power generation system and power generation method |
| CN106321176B (en) * | 2015-07-01 | 2020-01-21 | 阿耐思特岩田株式会社 | Power generation system and power generation method |
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Application publication date: 20101110 |