CN205400829U - Low temperature heat recovery utilizes unit - Google Patents
Low temperature heat recovery utilizes unit Download PDFInfo
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- CN205400829U CN205400829U CN201620182530.7U CN201620182530U CN205400829U CN 205400829 U CN205400829 U CN 205400829U CN 201620182530 U CN201620182530 U CN 201620182530U CN 205400829 U CN205400829 U CN 205400829U
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Abstract
The utility model provides a low temperature heat recovery utilizes unit, including the air receiver, a compressor, the reservoir, the evaporating heat exchange ware I, pneumatic machine, solenoid valve I, solenoid valve II, pressure switch I, the liquid level ware I, check valve I and control system, the air receiver links to each other with the end of breathing in of compressor, the exhaust end of compressor links to each other with the reservoir, the bottom of reservoir links to each other with evaporating heat exchange ware I through the pipeline that is equipped with solenoid valve I, evaporating heat exchange ware I is held with breathing in of compressor through the pipeline that is equipped with solenoid valve II and is linked to each other, pipeline through being equipped with check valve I links to each other with pneumatic machine, pneumatic machine links to each other with the air receiver, be equipped with liquid level switch in the reservoir, motorised valve I links to each other with evaporating heat exchange ware I, pressure switch I, liquid level ware I is installed in evaporating heat exchange ware I. The utility model has the characteristics of heat utilization rate is high, retrieves the heat source wide range, and the equipment investment is little, in a small amount, micro heat source can carry out recycle etc.
Description
Technical field
This utility model relates to a kind of heat energy recycle unit, particularly relates to a kind of low temperature heat energy and recycles unit.
Background technology
At present, it is all by low boiling organic working medium low boiling physical characteristic that low temperature heat energy is recycled, absorbing used heat (waste heat) source heat energy by heat exchanger, liquid refrigerant heat absorption evaporation produces high compressed steam, promotes gas-turbine, the generating of drive electrical generators group or directly output mechanical energy, steam after acting is pumped in vaporizer by solution, circulating and evaporating after being condensed into liquid by chiller (cooling tower or domestic hot-water's heat exchanger+cooling tower), continuously generate steam, promote gas-turbine.It has the disadvantage that
1, heat utilization rate low (condensation process loss heat, condensing plant self consumes energy)；
2, heat source temperature is required high (higher than 60 degrees Celsius)；
3, equipment investment is big, it is impossible to small-sized, microminiaturized；
4, heat from heat source being required upper scale, in a small amount, the thermal source of trace cannot be carried out recycling；
5, heat recovery application is limited seriously.
Utility model content
It is high that technical problem to be solved in the utility model is to provide a kind of heat energy recycle rate, and heat source temperature is required low (can be low to moderate room temperature), and equipment investment is little, can extensively reclaim in a small amount, low temperature heat energy that the heat from heat source of trace carries out utilizing recycles unit.
This utility model solves its technical problem and be the technical scheme is that
Technical scheme one: a kind of low temperature heat energy recycles unit, including gas container, compressor, reservoir, evaporating heat exchanger I, pneumatic machine, electromagnetic valve I, electromagnetic valve II, electrodynamic valve I、nullPressure switch I、Liquid level meter I、Check valve I and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I by being provided with the pipeline of electromagnetic valve I，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，It is provided with liquid-level switch in described reservoir，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，Described electrodynamic valve I is connected with evaporating heat exchanger I and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor、Liquid level meter I、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electrodynamic valve I、Pressure switch I is connected.
Utilize the method that above-mentioned unit carries out low temperature heat energy recycling:
nullControl system detection reservoir、The liquid level of evaporating heat exchanger I，Open compressor，Organic low boiling working fluid in compressibility，When reservoir liquid level reaches 0A，When the liquid level of evaporating heat exchanger I is 1C，The liquid-level switch of reservoir connects (or disconnection) with the contact 1303 of liquid level meter I in evaporating heat exchanger I，Control system receives signal，Control system output control signal opens electromagnetic valve II，Evaporating heat exchanger I internal pressure rapid decrease，When pressure drops to pressure switch I trigger value，Pressure switch I connects (or disconnection)，Control system receives signal，Control system output control signal closes electromagnetic valve II、Open electromagnetic valve I，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，(or disconnection) is connected in the contact 1301 of liquid level meter I，After control system detects signal, output control signal closes electromagnetic valve I，Open electrodynamic valve I；The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat, waste heat, low-grade heat source) heat energy of medium is evaporated, to keep the organic low boiling working fluid of liquid in evaporating heat exchanger I to evaporate continuously and healthily formation high temperature and high pressure gas, gained high temperature and high pressure gas enters the inlet end of pneumatic machine by being provided with the pipeline of check valve I, steam can be converted to mechanical energy by pneumatic machine, organic low boiling working fluid after acting is middle wet state, it is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline, organic low boiling working fluid in gas container is sucked by compressor, it is compressed into storage in liquid in reservoir, so organic low boiling working fluid has just carried out once complete by gaseous state to liquid, liquid is to the workflow of gaseous state；
In evaporating heat exchanger I, the organic low boiling working fluid of liquid is evaporated process, liquid refrigerant constantly reduces, and when reducing to setting value 1C, (or disconnection) is connected in the contact 1303 of liquid level meter I, after control system detects signal, output control signal opens electromagnetic valve II, closes electrodynamic valve I；Evaporating heat exchanger I internal pressure rapid decrease, when pressure drops to pressure switch I trigger value, pressure switch I contacting (or disconnection), after control system detects signal, output control signal closes electromagnetic valve II, open electromagnetic valve I, in reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I, when the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A, (or disconnection) is connected in the contact 1301 of liquid level meter I, after control system detects signal, output control signal closes electromagnetic valve I, open electrodynamic valve I；The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat, waste heat, low temperature grade thermal source) heat energy of medium is evaporated, to keep the organic low boiling working fluid of liquid in evaporating heat exchanger I to evaporate continuously and healthily formation high temperature and high pressure gas, gained high temperature and high pressure gas enters pneumatic machine inlet end through the pipeline being provided with check valve I, steam can be converted to mechanical energy by pneumatic machine, organic low boiling working fluid after acting is middle wet state, it is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline, organic low boiling working fluid in gas container is sucked by compressor, it is compressed into storage in liquid in reservoir, it is circulated work；
Evaporating heat exchanger I is in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
Evaporating heat exchanger I, in the non-evaporation period, does not export high compressed steam, and pneumatic machine quits work.
nullTechnical scheme two: a kind of low temperature heat energy recycles unit，Including gas container、Compressor、Reservoir、Evaporating heat exchanger I、Evaporating heat exchanger II、Pneumatic machine、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electromagnetic valve IV、Electrodynamic valve I、Electrodynamic valve II、Pressure switch I、Pressure switch II、Liquid level meter I、Liquid level meter II、Check valve I、Check valve II and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I respectively through the pipeline being provided with electromagnetic valve I、It is connected with evaporating heat exchanger II by being provided with the pipeline of electromagnetic valve III，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，Described evaporating heat exchanger II is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve IV、The inlet end of pipeline with pneumatic machine by being provided with check valve II is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，It is provided with liquid-level switch in described reservoir，Described pressure switch II、Liquid level meter II is arranged in evaporating heat exchanger II，Described electrodynamic valve I is connected with evaporating heat exchanger I and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described electrodynamic valve II is connected with evaporating heat exchanger II and (controls the entrance of thermal source，Evaporating heat exchanger II is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electromagnetic valve IV、Electrodynamic valve I、Electrodynamic valve II、Pressure switch I、Pressure switch II、Liquid level meter I、Liquid level meter II is connected.
Utilize the method that above unit carries out low temperature heat energy recycling:
nullControl system detection reservoir、The liquid level of evaporating heat exchanger I，Open compressor，Organic low boiling working fluid in compressibility，When the liquid level of reservoir reaches 0A，When the liquid level of evaporating heat exchanger I is 1C，Liquid-level switch in reservoir connects (or disconnection) with the contact 1303 of liquid level meter I in evaporating heat exchanger I，Control system receives signal，Control system output control signal opens electromagnetic valve II，Evaporating heat exchanger I internal pressure rapid decrease，When pressure drops to pressure switch I trigger value，Pressure switch I connects (or disconnection)，Control system receives signal，Control system output control signal closes electromagnetic valve II、Open electromagnetic valve I，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，(or disconnection) is connected in the contact 1301 of liquid level meter I，After control system detects signal, output control signal closes electromagnetic valve I，Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat、Waste heat、Low-grade heat source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I to evaporate continuously and healthily formation high temperature and high pressure gas，Gained high temperature and high pressure gas enters the inlet end of pneumatic machine by being provided with the pipeline of check valve I，Steam can be converted to mechanical energy by pneumatic machine，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline，Organic low boiling working fluid in gas container is sucked by compressor，It is compressed into storage in liquid in reservoir，So organic low boiling working fluid has just carried out once complete by gaseous state to liquid、Liquid is to the workflow of gaseous state；
nullIn evaporating heat exchanger I, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 1B，(or disconnection) is connected in the contact 1302 of liquid level meter I，After control system detects signal, output control signal opens electromagnetic valve IV，Evaporating heat exchanger II internal pressure rapid decrease，When pressure drops to pressure switch II trigger value，Pressure switch II contacting (or disconnection)，After control system detects signal, output control signal closes electromagnetic valve IV、Open electromagnetic valve III，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger II through electromagnetic valve III，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 2A，(or disconnection) is connected in the contact 1401 of liquid level meter II，After control system detects signal, output control signal closes electromagnetic valve III、Open electrodynamic valve II，The organic low boiling working fluid of liquid in evaporating heat exchanger II absorbs and flows through evaporating heat exchanger II (used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger II to evaporate continuously and healthily formation high temperature and high pressure gas，Gained high temperature and high pressure gas enters pneumatic machine inlet end through the pipeline being provided with check valve II，Steam can be converted to mechanical energy by pneumatic machine，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline，Organic low boiling working fluid in gas container is sucked by compressor，It is compressed into storage in liquid in reservoir，It is circulated work；
nullWhen in evaporating heat exchanger II, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 2B，(or disconnection) is connected in the contact 1402 of liquid level meter II，After control system detects signal, output control signal opens electromagnetic valve II、Close electrodynamic valve I，Evaporating heat exchanger I internal pressure rapid decrease，When pressure drops to pressure switch I trigger value，Pressure switch I contacting (or disconnection)，After control system detects signal, output control signal closes electromagnetic valve II、Open electromagnetic valve I，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，(or disconnection) is connected in the contact 1301 of liquid level meter I，After control system detects signal, output control signal closes electromagnetic valve I、Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid rapid evaporation of the liquid in evaporating heat exchanger I to form high temperature and high pressure gas，The high temperature and high pressure gas of gained enters pneumatic machine inlet end through the pipeline being provided with check valve I，Steam can be converted to mechanical energy by pneumatic machine；
Reservoir capacity is more than the total working medium liquid volume of unit；
Evaporating heat exchanger I, evaporating heat exchanger II are in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
The liquid level of evaporating heat exchanger is down to the position of B by A, the liquid level of its interior liquid refrigerant evaporation required time T0 > evaporating heat exchanger is down to the position of C by B, its interior liquid refrigerant evaporation required time T >=evaporating heat exchanger liquid level is by C to pressure falling pressure switch motion, and reservoir liquid refrigerant enters evaporating heat exchanger and reaches liquid level A required time T1；
Evaporating heat exchanger I and evaporating heat exchanger II one after the other heat absorption evaporation, provide high-pressure air source for pneumatic machine, make pneumatic machine normally to continuously run.
nullTechnical scheme three: a kind of low temperature heat energy recycles unit，Including gas container、Compressor、Reservoir、Evaporating heat exchanger I、Pneumatic machine、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electrodynamic valve I、Pressure switch I、Liquid level meter I、Check valve I and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I by being provided with the pipeline of electromagnetic valve I、The inlet end of top pipeline and pneumatic machine by being provided with electromagnetic valve III is connected，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，It is provided with liquid-level switch in described reservoir，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，Described electrodynamic valve I is connected with evaporating heat exchanger I and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electrodynamic valve I、Pressure switch I、Liquid level meter I is connected.
Utilize the method that above unit carries out low temperature heat energy recycling:
nullControl system detection reservoir、The liquid level of evaporating heat exchanger I，Open compressor，Organic low boiling working fluid in compressibility，When the liquid level of reservoir reaches 0A，When the liquid level of evaporating heat exchanger I is 1C，The liquid-level switch of reservoir connects (or disconnection) with the contact 1303 of liquid level meter I in evaporating heat exchanger I，Control system receives signal，Control system output control signal opens electromagnetic valve II，Evaporating heat exchanger I internal pressure rapid decrease，When pressure drops to pressure switch I trigger value，Pressure switch I is connected，Control system receives signal，Control system output control signal closes electromagnetic valve II、Open electromagnetic valve I，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，(or disconnection) is connected in the contact 1301 of liquid level meter I，After control system detects signal, output control signal closes electromagnetic valve I、Open electrodynamic valve I；The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat, waste heat, low-grade heat source) heat energy of medium is evaporated, to keep the organic low boiling working fluid of liquid in evaporating heat exchanger I to evaporate continuously and healthily formation high temperature and high pressure gas, the high temperature and high pressure gas of gained enters the inlet end of pneumatic machine by being provided with the pipeline of check valve I, steam can be converted to mechanical energy by pneumatic machine, the organic low boiling of working medium after acting is middle wet state, it is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline, organic low boiling working fluid in gas container is sucked by compressor, it is compressed into storage in liquid in reservoir, so organic low boiling working fluid has just carried out once complete by gaseous state to liquid, liquid is to the workflow of gaseous state；
nullIn evaporating heat exchanger I, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 1C，(or disconnection) is connected in the contact 1303 of liquid level meter I，After control system detects signal, output control signal opens electromagnetic valve II and electromagnetic valve III，The medium temperature and medium pressure gaseous working medium of reservoir inner top enters the inlet end of pneumatic machine by electromagnetic valve III and straight tube，Steam can be converted to mechanical energy by pneumatic machine，Evaporating heat exchanger I internal pressure rapid decrease simultaneously，When pressure drops to pressure switch I trigger value，Pressure switch I contacting (or disconnection)，After control system detects signal, output control signal closes electromagnetic valve II、Open electromagnetic valve I，In reservoir, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I through electromagnetic valve I，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，(or disconnection) is connected in the contact 1301 of liquid level meter I，After control system detects signal, output control signal closes electromagnetic valve I and electromagnetic valve III，Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I absorbs and flows through evaporating heat exchanger I (used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I to evaporate continuously and healthily formation high temperature and high pressure gas，The high temperature and high pressure gas of gained enters pneumatic machine inlet end through the pipeline being provided with check valve I，Steam can be converted to mechanical energy by pneumatic machine，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container from the exhaust end of pneumatic machine by pipeline，Organic low boiling working fluid in gas container is sucked by compressor，It is compressed into storage in liquid in reservoir，It is circulated work；
Evaporating heat exchanger I is in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
Evaporating heat exchanger I is in the non-evaporation period, and the medium temperature and medium pressure gas in reservoir pushes directly on pneumatic machine work.
Compared with prior art, the utility model has the advantages that: heat energy recycle rate is high, heat source temperature is required low (can be low to moderate room temperature), and equipment investment is little, in a small amount, the thermal source of trace can recycle, heat recovery application is unrestricted.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1；
Fig. 2 is the structural representation of this utility model embodiment 2；
Fig. 3 is the structural representation of this utility model embodiment 3；
In figure: 1-gas container, 2-compressor, 3-reservoir, 4-evaporating heat exchanger I, 5-evaporating heat exchanger II, 6-pneumatic machine, 7-electromagnetic valve I, 8-electromagnetic valve II, 9-electromagnetic valve III, 10-electromagnetic valve IV, 11-pressure switch I, 12-pressure switch II, 13-liquid level meter I, 14-liquid level meter II, 15-check valve I, 16-check valve II.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
nullWith reference to Fig. 1，The present embodiment includes gas container 1、Compressor 2、Reservoir 3、Evaporating heat exchanger I 4、Pneumatic machine 6、Electrodynamic valve I (not shown)、Electromagnetic valve I 7、Electromagnetic valve II 8、Pressure switch I 11、Liquid level meter I 13、Check valve I 15 and control system，Described gas container 1 is connected with the suction end of compressor 2 by pipeline，The exhaust end of described compressor 2 is connected with the middle and lower part of reservoir 3 by pipeline，The bottom of described reservoir 3 is connected with evaporating heat exchanger I 4 by being provided with the pipeline of electromagnetic valve I 7，Described evaporating heat exchanger I 4 is connected respectively through the suction end of the pipeline with compressor 2 that are provided with electromagnetic valve II 8、The inlet end of pipeline with pneumatic machine 6 by being provided with check valve I 15 is connected，The exhaust end of described pneumatic machine 6 is connected with gas container 1 by pipeline，It is provided with liquid-level switch in described reservoir 3，Described pressure switch I 11、Liquid level meter I 13 is arranged in evaporating heat exchanger I 4，Described electrodynamic valve I is connected with evaporating heat exchanger I 4 and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor 2、Liquid level meter I 13、Liquid-level switch、Electromagnetic valve I 7、Electromagnetic valve II 8、Electrodynamic valve I、Pressure switch I 11 is connected.
Utilize the method that above-mentioned unit carries out low temperature heat energy recycling:
nullControl system detection reservoir 3、The liquid level of evaporating heat exchanger I 4，Open compressor 2，Organic low boiling working fluid in compressibility，When reservoir 3 liquid level reaches 0A，When the liquid level of evaporating heat exchanger I 4 is 1C，The liquid-level switch of reservoir 3 is connected with the contact 1303 of liquid level meter I 13 in evaporating heat exchanger I 4，Control system receives signal，Control system output control signal opens electromagnetic valve II 8，Evaporating heat exchanger I 4 internal pressure rapid decrease，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 is connected，Control system receives signal，Control system output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7，Open electrodynamic valve I；The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat, waste heat, low-grade heat source) heat energy of medium is evaporated, to keep the organic low boiling working fluid of liquid in evaporating heat exchanger I 4 to evaporate continuously and healthily formation high temperature and high pressure gas, gained high temperature and high pressure gas enters the inlet end of pneumatic machine 6 by being provided with the pipeline of check valve I 15, steam can be converted to mechanical energy by pneumatic machine 6, organic low boiling working fluid after acting is middle wet state, it is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline, organic low boiling working fluid in gas container 1 is sucked by compressor 2, it is compressed into storage in liquid in reservoir 3, recycle；So organic low boiling working fluid just carried out once complete by gaseous state to liquid, liquid to the workflow of gaseous state；
nullIn evaporating heat exchanger I 4, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 1C，The contact 1303 of liquid level meter I 13 is connected，After control system detects signal, output control signal opens electromagnetic valve II 8，Close electrodynamic valve I，Evaporating heat exchanger I 4 internal pressure rapid decrease，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 contacting，After control system detects signal, output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7、Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I 4 to evaporate continuously and healthily formation high temperature and high pressure gas，Gained high temperature and high pressure gas enters pneumatic machine 6 inlet end through the pipeline being provided with check valve I 15，Steam can be converted to mechanical energy by pneumatic machine 6，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline，Organic low boiling working fluid in gas container 1 is sucked by compressor 2，It is compressed into storage in liquid in reservoir 3，It is circulated work；
Evaporating heat exchanger I 4 is in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
Evaporating heat exchanger I 4, in the non-evaporation period, does not export high compressed steam, and pneumatic machine 6 quits work.
Embodiment 2
nullWith reference to Fig. 2，The present embodiment includes gas container 1、Compressor 2、Reservoir 3、Evaporating heat exchanger I 4、Evaporating heat exchanger II 5、Pneumatic machine 6、Electromagnetic valve I 7、Electromagnetic valve II 8、Electromagnetic valve III 9、Electromagnetic valve IV 10、Electrodynamic valve I (not shown)、Electrodynamic valve II (not shown)、Pressure switch I 11、Pressure switch II 12、Liquid level meter I 13、Liquid level meter II 14、Check valve I 15、Check valve II 16 and control system，Described gas container 1 is connected with the suction end of compressor 2 by pipeline，The exhaust end of described compressor 2 is connected with the middle and lower part of reservoir 3 by pipeline，The bottom of described reservoir 3 is connected with evaporating heat exchanger I 4 respectively through the pipeline being provided with electromagnetic valve I 7、It is connected with evaporating heat exchanger II 5 by being provided with the pipeline of electromagnetic valve III 9，Described evaporating heat exchanger I 4 is connected respectively through the suction end of the pipeline with compressor 2 that are provided with electromagnetic valve II 8、The inlet end of pipeline with pneumatic machine 6 by being provided with check valve I 15 is connected，Described evaporating heat exchanger II 5 is connected respectively through the suction end of the pipeline with compressor 2 that are provided with electromagnetic valve IV 10、The inlet end of pipeline with pneumatic machine 6 by being provided with check valve II 16 is connected，The exhaust end of described pneumatic machine 6 is connected with gas container 1 by pipeline，Described pressure switch I 11、Liquid level meter I 13 is arranged in evaporating heat exchanger I 4，It is provided with liquid-level switch in described reservoir 3，Described pressure switch II 12、Liquid level meter II 14 is arranged in evaporating heat exchanger II 5，Described electrodynamic valve I is connected with evaporating heat exchanger I 4 and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described electrodynamic valve II is connected with evaporating heat exchanger II 5 and (controls the entrance of thermal source，Evaporating heat exchanger II is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor、Liquid-level switch、Electromagnetic valve I 7、Electromagnetic valve II 8、Electromagnetic valve III 9、Electromagnetic valve IV 10、Electrodynamic valve I、Electrodynamic valve II、Pressure switch I 11、Pressure switch II 12、Liquid level meter I 13、Liquid level meter II 14 is connected.
Utilize the method that above unit carries out low temperature heat energy recycling:
nullControl system detection reservoir 3、The liquid level of evaporating heat exchanger I 4，Open compressor 2，Organic low boiling working fluid in compressibility，When the liquid level of reservoir 3 reaches 0A，When the liquid level of evaporating heat exchanger I 4 is 1C，Liquid-level switch in reservoir 3 is connected with the contact 1303 of liquid level meter I 13 in evaporating heat exchanger I 4，Control system receives signal，Control system output control signal opens electromagnetic valve II 8，Evaporating heat exchanger I 4 internal pressure rapid decrease，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 is connected，Control system receives signal，Control system output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7，Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat、Waste heat、Low-grade heat source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I 4 to evaporate continuously and healthily formation high temperature and high pressure gas，Gained high temperature and high pressure gas enters the inlet end of pneumatic machine 6 by being provided with the pipeline of check valve I 15，Steam can be converted to mechanical energy by pneumatic machine 6，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline，Organic low boiling working fluid in gas container 1 is sucked by compressor 2，It is compressed into storage in liquid in reservoir 3，Recycle；So organic low boiling working fluid just carried out once complete by gaseous state to liquid, liquid to the workflow of gaseous state；
nullIn evaporating heat exchanger I 4, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 1B，The contact 1302 of liquid level meter I 13 is connected，After control system detects signal, output control signal opens electromagnetic valve IV 10，Evaporating heat exchanger II 5 internal pressure rapid decrease，When pressure drops to pressure switch II 12 trigger value，Pressure switch II 12 contacting，After control system detects signal, output control signal closes electromagnetic valve IV 10、Open electromagnetic valve III 9，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger II 5 through electromagnetic valve III 9，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 2A，The contact 1401 of liquid level meter II 14 is connected，After control system detects signal, output control signal closes electromagnetic valve III 9、Open electrodynamic valve II，The organic low boiling working fluid of liquid in evaporating heat exchanger II 5 absorbs and flows through evaporating heat exchanger II 5(used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger II 5 to evaporate continuously and healthily formation high temperature and high pressure gas，Gained high temperature and high pressure gas enters pneumatic machine 6 inlet end through the pipeline being provided with check valve II 16，Pneumatic machine 6 output mechanical energy；Organic low boiling working fluid after acting is middle wet state, is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline, and the organic low boiling working fluid in gas container 1 is sucked by compressor 2, is compressed into storage in liquid in reservoir 3, is circulated work；
nullWhen in evaporating heat exchanger II 5, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 2B，The contact 1402 of liquid level meter II 14 is connected，After control system detects signal, output control signal opens electromagnetic valve II 8、Close electrodynamic valve I，Evaporating heat exchanger I 4 internal pressure rapid decrease，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 contacting，After control system detects signal, output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7、Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid rapid evaporation of the liquid in evaporating heat exchanger I 4 to form high temperature and high pressure gas，The high temperature and high pressure gas of gained enters pneumatic machine 6 inlet end through the pipeline being provided with check valve I 15，Steam can be converted to mechanical energy by pneumatic machine 6；
Reservoir 3 capacity is more than the total working medium liquid volume of unit；
Evaporating heat exchanger I 4, evaporating heat exchanger II 5 are in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
The liquid level of evaporating heat exchanger is down to the position of B by A, the liquid level of its interior liquid refrigerant evaporation required time T0 > evaporating heat exchanger is down to the position of C by B, its interior liquid refrigerant evaporation required time T >=evaporating heat exchanger liquid level is by C to pressure falling pressure switch motion, and reservoir 3 liquid refrigerant enters evaporating heat exchanger and reaches liquid level A required time T1；
Evaporating heat exchanger I 4 and evaporating heat exchanger II 5 one after the other heat absorption evaporation, provide high-pressure air source for pneumatic machine 6, make pneumatic machine 6 normally to continuously run.
Certainly, the present embodiment evaporating heat exchanger can also be made up of the quantity of more than 3.
Embodiment 3
nullWith reference to Fig. 3，The present embodiment includes gas container 1、Compressor 2、Reservoir 3、Evaporating heat exchanger I 4、Pneumatic machine 6、Electromagnetic valve I 7、Electromagnetic valve II 8、Electromagnetic valve III 9、Electrodynamic valve I、Pressure switch I 11、Liquid level meter I 13、Check valve I 15 and control system，Described gas container 1 is connected with the suction end of compressor 2 by pipeline，The exhaust end of described compressor 2 is connected with the middle and lower part of reservoir 3 by pipeline，The bottom of described reservoir 3 is connected with evaporating heat exchanger I 4 by being provided with the pipeline of electromagnetic valve I 7、The inlet end of top pipeline and pneumatic machine 6 by being provided with electromagnetic valve III 9 is connected，Described evaporating heat exchanger I 4 is connected respectively through the suction end of the pipeline with compressor 2 that are provided with electromagnetic valve II 8、The inlet end of pipeline with pneumatic machine 6 by being provided with check valve I 15 is connected，The exhaust end of described pneumatic machine 6 is connected with gas container 1 by pipeline，It is provided with liquid-level switch in described reservoir 3，Described pressure switch I 11、Liquid level meter I 13 is arranged in evaporating heat exchanger I 4，Described electrodynamic valve I is connected with evaporating heat exchanger I 4 and (controls the entrance of thermal source，Evaporating heat exchanger I is closed thermal source when not occurring to evaporate and is entered)，Described control system respectively with compressor 2、Liquid-level switch、Electromagnetic valve I 7、Electromagnetic valve II 8、Electromagnetic valve III 9、Electrodynamic valve I、Pressure switch I 11、Liquid level meter I 13 is connected.
Utilize the method that above unit carries out low temperature heat energy recycling:
nullControl system detection reservoir 3、The liquid level of evaporating heat exchanger I 4，Open compressor 2，Organic low boiling working fluid in compressibility，When the liquid level of reservoir 3 reaches 0A，When the liquid level of evaporating heat exchanger I 4 is 1C，The liquid-level switch of reservoir 3 is connected with the contact 1303 of liquid level meter I 13 in evaporating heat exchanger I 4，Control system receives signal，Control system output control signal opens electromagnetic valve II 8，Evaporating heat exchanger I 4 internal pressure rapid decrease，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 is connected，Control system receives signal，Control system output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7、Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat、Waste heat、Low-grade heat source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I 4 to evaporate continuously and healthily formation high temperature and high pressure gas，The high temperature and high pressure gas of gained enters the inlet end of pneumatic machine 6 by being provided with the pipeline of check valve I 15，Steam can be converted to mechanical energy by pneumatic machine 6，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline，Organic low boiling working fluid in gas container 1 is sucked by compressor 2，It is compressed into storage in liquid in reservoir 3，Recycle；So organic low boiling working fluid just carried out once complete by gaseous state to liquid, liquid to the workflow of gaseous state；
nullIn evaporating heat exchanger I 4, the organic low boiling working fluid of liquid is evaporated process，Liquid refrigerant constantly reduces，When reducing to setting value 1C，The contact 1303 of liquid level meter I 13 is connected，After control system detects signal, output control signal opens electromagnetic valve II 8 and electromagnetic valve III 9，The medium temperature and medium pressure gaseous working medium of reservoir 3 inner top enters the inlet end of pneumatic machine 6 by electromagnetic valve III 9 and straight tube，Steam can be converted to mechanical energy by pneumatic machine 6，Evaporating heat exchanger I 4 internal pressure rapid decrease simultaneously，When pressure drops to pressure switch I 11 trigger value，Pressure switch I 11 contacting，After control system detects signal, output control signal closes electromagnetic valve II 8、Open electromagnetic valve I 7，In reservoir 3, the organic low boiling working fluid of the liquid of medium temperature and medium pressure flows in evaporating heat exchanger I 4 through electromagnetic valve I 7，When the organic low boiling working fluid amount of liquid flowed into reaches setting value 1A，The contact 1301 of liquid level meter I 13 is connected，After control system detects signal, output control signal closes electromagnetic valve I 7 and electromagnetic valve III 9，Open electrodynamic valve I，The organic low boiling working fluid of liquid in evaporating heat exchanger I 4 absorbs and flows through evaporating heat exchanger I 4(used heat、Waste heat、Low temperature grade thermal source) heat energy of medium is evaporated，To keep the organic low boiling working fluid of liquid in evaporating heat exchanger I 4 to evaporate continuously and healthily formation high temperature and high pressure gas，The high temperature and high pressure gas of gained enters pneumatic machine 6 inlet end through the pipeline being provided with check valve I 15，Steam can be converted to mechanical energy by pneumatic machine 6，Organic low boiling working fluid after acting is middle wet state，It is directly discharged in gas container 1 from the exhaust end of pneumatic machine 6 by pipeline，Organic low boiling working fluid in gas container 1 is sucked by compressor 2，It is compressed into storage in liquid in reservoir 3，It is circulated work；
Evaporating heat exchanger I 4 is in the non-evaporation period, and used heat, waste heat, low temperature grade heat source medium stop entering；
Evaporating heat exchanger I 4 is in the non-evaporation period, and the medium temperature and medium pressure gas in reservoir 3 pushes directly on pneumatic machine 6 and works.
Claims (3)
- null1. a low temperature heat energy recycles unit，It is characterized in that: include gas container、Compressor、Reservoir、Evaporating heat exchanger I、Pneumatic machine、Electromagnetic valve I、Electromagnetic valve II、Electrodynamic valve I、Pressure switch I、Liquid level meter I、Check valve I and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I by being provided with the pipeline of electromagnetic valve I，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，It is provided with liquid-level switch in described reservoir，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，Described electrodynamic valve I is connected with evaporating heat exchanger I，Described control system respectively with compressor、Liquid level meter I、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electrodynamic valve I、Pressure switch I is connected.
- null2. a low temperature heat energy recycles unit，It is characterized in that: include gas container、Compressor、Reservoir、Evaporating heat exchanger I、Evaporating heat exchanger II、Pneumatic machine、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electromagnetic valve IV、Electrodynamic valve I、Electrodynamic valve II、Pressure switch I、Pressure switch II、Liquid level meter I、Liquid level meter II、Check valve I、Check valve II and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I respectively through the pipeline being provided with electromagnetic valve I、It is connected with evaporating heat exchanger II by being provided with the pipeline of electromagnetic valve III，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，Described evaporating heat exchanger II is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve IV、The inlet end of pipeline with pneumatic machine by being provided with check valve II is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，It is provided with liquid-level switch in described reservoir，Described pressure switch II、Liquid level meter II is arranged in evaporating heat exchanger II，Described electrodynamic valve I is connected with evaporating heat exchanger I，Described electrodynamic valve II is connected with evaporating heat exchanger II，Described control system respectively with compressor、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electromagnetic valve IV、Electrodynamic valve I、Electrodynamic valve II、Pressure switch I、Pressure switch II、Liquid level meter I、Liquid level meter II is connected.
- null3. a low temperature heat energy recycles unit，It is characterized in that: include gas container、Compressor、Reservoir、Evaporating heat exchanger I、Pneumatic machine、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electrodynamic valve I、Pressure switch I、Liquid level meter I、Check valve I and control system，Described gas container is connected with the suction end of compressor by pipeline，The exhaust end of described compressor is connected with the middle and lower part of reservoir by pipeline，The bottom of described reservoir is connected with evaporating heat exchanger I by being provided with the pipeline of electromagnetic valve I、The inlet end of top pipeline and pneumatic machine by being provided with electromagnetic valve III is connected，Described evaporating heat exchanger I is connected respectively through the suction end of the pipeline with compressor that are provided with electromagnetic valve II、The inlet end of pipeline with pneumatic machine by being provided with check valve I is connected，The exhaust end of described pneumatic machine is connected with gas container by pipeline，It is provided with liquid-level switch in described reservoir，Described pressure switch I、Liquid level meter I is arranged in evaporating heat exchanger I，Described electrodynamic valve I is connected with evaporating heat exchanger I，Described control system respectively with compressor、Liquid-level switch、Electromagnetic valve I、Electromagnetic valve II、Electromagnetic valve III、Electrodynamic valve I、Pressure switch I、Liquid level meter I is connected.
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| CN201620182530.7U CN205400829U (en) | 2016-03-10 | 2016-03-10 | Low temperature heat recovery utilizes unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105545388A (en) * | 2016-03-10 | 2016-05-04 | 钟学斌 | Low-temperature thermal energy recycling unit and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545388A (en) * | 2016-03-10 | 2016-05-04 | 钟学斌 | Low-temperature thermal energy recycling unit and method |
| CN105545388B (en) * | 2016-03-10 | 2017-02-22 | 钟学斌 | Low-temperature thermal energy recycling unit and method |
| WO2017152759A1 (en) * | 2016-03-10 | 2017-09-14 | 钟学斌 | Low-temperature heat energy recycling unit and method |
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