CN107503813A - Using the gravity-type of low grade heat energy driving without pump organic working medium TRT - Google Patents
Using the gravity-type of low grade heat energy driving without pump organic working medium TRT Download PDFInfo
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- CN107503813A CN107503813A CN201710639695.1A CN201710639695A CN107503813A CN 107503813 A CN107503813 A CN 107503813A CN 201710639695 A CN201710639695 A CN 201710639695A CN 107503813 A CN107503813 A CN 107503813A
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- condenser
- evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of gravity-type using low grade heat energy driving without pump organic working medium TRT, including evaporator, double-condenser, expanding machine, generator, ten water valves, four refrigerant valves；It is filled with a certain amount of refrigerant into evaporator and the first condenser, the heat exchanger tube inside evaporator and condenser, for hot water or the cooling water of circulating.Two condensers necessarily be greater than evaporator.Water valve, which changes hot water flow direction, makes evaporator, the first condenser and the second condenser be heated in heating process by mutually synthermal thermal source, first condenser or the second condenser are identical with the pressure of evaporator, the position of first and second condensers is higher than evaporator, liquid refrigerant is flowed into evaporator from heated condenser, ensure that evaporator can continuously produce the refrigerant vapour promotion expanding machine rotation drive electrical power generators of HTHP, it can ensure that system can continuously export electricity, high-pressure working medium pump is saved, improves the operational efficiency of system.
Description
Technical field
The present invention relates to generating equipment technical field, more particularly to a kind of gravity-type using low grade heat energy driving is without pump
Organic working medium TRT.
Background technology
Organic Rankine bottoming cycle (ORC) causes extensively as a kind of technology that the heat energy of middle-low grade is converted into electric energy
Research.Shown in Fig. 1 is existing conventional organic working medium TRT, by evaporator, condenser, expanding machine and working medium pump etc.
Composition.In the application during low-grade heat energy power-generating, especially small-sized organic Rankine bottoming cycle exists organic Rankine bottoming cycle
One bottleneck problem is the electric energy of high-pressure working medium pump consumption, because the pressure of high-pressure working medium pump discharge must not drop below vapor pres- sure
Power, by taking organic working medium refrigerant R245fa as an example, when evaporating temperature is 100 DEG C, evaporating pressure 1.26MPa, while pump intake
Pressure is 0.18MPa, and high-pressure working medium pump needs refrigerant liquid being pressurized to 1.26MPa from 0.18MPa, and high-pressure working medium pump
Efficiency is generally than relatively low, therefore the electric energy of process consumption is that can not be ignored relative to the generated energy of small-sized organic Rankine bottoming cycle
, the net generating efficiency for causing system is low.
For the problem, the patent that grant number is ZL 2,014 1 0680177.0 is " a kind of to utilize low grade heat energy driving
Organic working medium TRT " proposes a set of no pump organic rankine cycle system, as shown in Fig. 2 system is changed by two identicals
Hot device, two four water-through valves, a four-way refrigerant valve, scroll expansion machine and generator etc. forms, and passes through switch valve
Thermal source and low-temperature receiver alternating heating heat exchanger are realized, realizes circulating for working medium, instead of the effect of working medium pump, but experimental result
Show that the shaft work of expanding machine output is unstable and discontinuous, application is relatively difficult, and in accompanying drawing 2, heat exchanger 1-A2-A1 is high temperature
High pressure organic working medium pipeline；Heat exchanger 1-A6- working medium pumps-thermal source-A4- heat exchangers 1 are hot water circuit heat supply pipeline；Heat exchanger 2-
A6- working medium pumps-cooling tower-A4- heat exchangers 2 are cooling water circulation pipeline；A3-A2-A7 is expander exhaust gas pipeline.
During low-temperature receiver cooling heat exchanger 2 it is such case when thermal source heating heat exchanger 1；When thermal source heating heat exchanger 2, low-temperature receiver
It is another situation again during cooling heat exchanger 1, the patent for referring to grant number ZL201410680177.0 is " a kind of to utilize low product
The organic working medium TRT of position heat-driven ".
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of gravity-type using low grade heat energy driving without pump
Organic working medium TRT.
To achieve the above object, the present invention is realized according to following technical scheme：
It is a kind of using low grade heat energy driving gravity-type without pump organic working medium TRT, including：Evaporator, double condensations
Device, expanding machine, generator, ten water valves, four refrigerant valves, the double-condenser include the first condenser and the second condensation
Device, four refrigerant valves include the first refrigerant valve, second refrigerant valve, the 3rd refrigerant valve, the 4th refrigerant valve；
Wherein, the evaporator is connected by the first refrigerant valve with the first condenser；Evaporator passes through second refrigerant
Valve is connected with the second condenser；The import of expanding machine is connected with evaporator；The outlet of expanding machine passes through the 3rd refrigerant valve and
One condenser connects；The outlet of expanding machine is connected by the 4th refrigerant valve with the second condenser；By switching different refrigeration
Agent valve, the exhaust of expanding machine is set to flow to the first condenser or the second condenser in the different periods；The evaporator and described
Refrigerant is filled with double-condenser, one group of spiral helicine heat exchanger tube is set inside the evaporator and condenser, for the heat that circulates
Water or cooling water, and hot water and cooling water are provided by thermal source and low-temperature receiver respectively；
Change hot water by ten water valves to flow to, evaporator, the first condenser and the second condenser quilt in heating process
Mutually synthermal thermal source heating so that the first condenser or the second condenser are identical with the pressure of evaporator, and described first cold
The position of condenser and second condenser is higher than the evaporator, liquid refrigerant from heated first condenser and
Second condenser is flowed into the evaporator, ensures that evaporator is constantly produced described in the refrigerant vapour promotion of HTHP
Expanding machine rotation drives the electrical power generators.
In above-mentioned technical proposal, ten water valves include the first water valve to the tenth water valve, and the spiral heat exchange tube sent out in device passes through
Third and fourth water valve connects thermal source；The spiral heat exchange tube of first condenser connects thermal source by first with the 5th water valve；First
The spiral heat exchange tube of condenser connects low-temperature receiver by the 7th with the 9th water valve；The spiral heat exchange tube of second condenser passes through the second He
6th water valve connects thermal source；The spiral heat exchange tube of second condenser connects low-temperature receiver by the 8th with the tenth water valve；The water outlet of thermal source
Mouth is connected with first, second, and third water valve, and water return outlet is connected with the four, the 5th and the 6th water valve；The delivery port of cooling tower with
7th is connected with the 8th water valve, and water return outlet is connected with the 9th and the tenth water valve；
In above-mentioned technical proposal, a boiler water pump is arranged in hot water line；A cooling is arranged on cooling water pipeline
Tower water pump.
In above-mentioned technical proposal, the expanding machine is scroll expansion machine.
In above-mentioned technical proposal, the evaporator and first condenser are respectively arranged with fill port, and supplement is organic
Working medium.
In above-mentioned technical proposal, the organic working medium includes refrigerant R245fa.
The present invention compared with prior art, has the advantages that：
Present invention can ensure that system can continuously export electricity, high-pressure working medium pump is saved, improves the operation effect of system
Rate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is existing organic Rankine bottoming cycle structural representation；
Fig. 2 is existing a set of no pump organic Rankine bottoming cycle schematic diagram；
Fig. 3 is the structural representation of the TRT of the present invention；
Fig. 4 is the operation reserve figure of the invention device of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.
Fig. 3 is the structural representation of the TRT of the present invention；As shown in figure 3, one kind of the present invention utilizes low-grade heat
Can driving gravity-type without pump organic working medium TRT, including：Evaporator, double-condenser, expanding machine, generator, ten water
Valve, four refrigerant valves, the double-condenser include the first condenser and the second condenser, and four refrigerant valves include the first system
Cryogen valve, second refrigerant valve, the 3rd refrigerant valve, the 4th refrigerant valve；
The annexation of the specific all parts of the present invention is as follows：Evaporator is condensed by the first refrigerant valve and first
Device connects；Evaporator is connected by second refrigerant valve with the second condenser；The import of expanding machine is connected with evaporator；Expanding machine
Outlet be connected by the 3rd refrigerant valve with the first condenser；The outlet of expanding machine is condensed by the 4th refrigerant valve and second
Device connects；By switching different refrigerant valves, the exhaust of expanding machine is set to flow to the first condenser or in the different periods
Two condensers；Refrigerant is filled with the evaporator and the double-condenser, one group is set inside the evaporator and condenser
Spiral helicine heat exchanger tube, for hot water or the cooling water of circulating, and hot water and cooling water are provided by thermal source and low-temperature receiver respectively.
Change hot water by ten water valves to flow to, evaporator, the first condenser and the second condenser quilt in heating process
Mutually synthermal thermal source heating so that the first condenser or the second condenser are identical with the pressure of evaporator, and described first cold
The position of condenser and second condenser is higher than the evaporator, liquid refrigerant from heated first condenser and
Second condenser is flowed into the evaporator, ensures that evaporator is constantly produced described in the refrigerant vapour promotion of HTHP
Expanding machine rotation drives the electrical power generators.
Ten water valves include the first water valve to the tenth water valve, and the spiral heat exchange tube sent out in device is connected by the third and fourth water valve
Connect thermal source；The spiral heat exchange tube of first condenser connects thermal source by first with the 5th water valve；The spiral heat exchange of first condenser
Pipe connects low-temperature receiver by the 7th with the 9th water valve；The spiral heat exchange tube of second condenser connects heat by second with the 6th water valve
Source；The spiral heat exchange tube of second condenser connects low-temperature receiver by the 8th with the tenth water valve；The delivery port of thermal source and first, second and
3rd water valve is connected, and water return outlet is connected with the four, the 5th and the 6th water valve；The delivery port of cooling tower and the 7th and the 8th water valve connect
Connect, water return outlet is connected with the 9th and the tenth water valve；
A boiler water pump is arranged in hot water line；A cooling tower water pump is arranged on cooling water pipeline.In the present invention
Third and fourth water valve is to be in open mode all the time, and it is in the state of being heated first and all the time so to ensure evaporator
Two refrigerant valves are check valves, as shown in figure 3, in Fig. 3, B6-B3- cooling towers-B2-V7-B1- first is condensed for specific flow direction
The pipeline of device is cold water pipes；Thermal source-B11-V3- evaporators-V4-B12 pipeline is hot water pipeline；Thermal source-B11-V2-B7-
Second condenser-B8-V6-B12 pipeline is hot water pipeline；B9-RV2-B10 and B15-B14 is high-pressure refrigerant pipeline；B13-
B5-RV3-B4 is low pressure refrigerant pipeline.
The exit of thermal source and low-temperature receiver is respectively arranged with water pump.Expanding machine is scroll expansion machine, scroll expansion machine
It is connected with generator by belt.Evaporator and first condenser, the second condenser are respectively arranged with fill port, mend
Fill organic working medium.
The operation principle of the present invention is as follows：Before runtime, the first refrigerant charging mouth and second refrigerant filling are led to
Mouth injects the organic working medium needed for heat exchange, generally refrigerant R245fa etc., this hair into evaporator and the first condenser respectively
It is bright without limitation, while the third and fourth water valve remains open mode, thermal source heating evaporation device all the time.In Account Dept
On the position of part, the position of the first and second condensers necessarily be greater than the position of evaporator.
The first step：Thermal source heats the second condenser, and low-temperature receiver cools down the first condenser.Now open second, the six, the 7th,
9th water valve and the 3rd refrigerant valve.The refrigerant vapour of HTHP caused by evaporator flows into expanding machine and promotes expanding machine
Rotation acting, expander exhaust gas are flowed into the first condenser, are condensed into saturated liquid.Due to evaporator and the second condenser simultaneously
Heated by mutually synthermal thermal source, while the position of the second condenser is higher than the position of evaporator, therefore liquid refrigerant can be from
Second condenser is flowed into evaporator.When there is no liquid refrigerant to flow into evaporator from the second condenser here, second is closed
With the 6th water valve, open the 8th and the tenth water valve and open.Cooling water begins to cool down the second condenser.
Second step：Thermal source heats the first condenser.When the shaft work of expanding machine starts acutely to decline, the seven, the 9th are closed
Water valve and the 3rd refrigerant valve, open the first, the 5th and the 4th refrigerant valve.Now HTHP system caused by evaporator
Refrigerant vapour flows into expanding machine and promotes expanding machine rotation acting, and expander exhaust gas is flowed into the second condenser.Due to evaporator and
First condenser is heated by thermal source simultaneously, at the same the position of the first condenser be higher than evaporator position, then liquid refrigerant from
First condenser is flowed into evaporator.When there is no liquid refrigerant to flow into evaporator from the first condenser here, first is closed
With the 5th water valve, the 7th and the 9th water valve is opened.Cooling water begins to cool down the first condenser.
Finally, thermal source heats the second condenser.When the shaft work of expanding machine output starts tempestuously to decline, closing the 8th,
Tenth water valve and the 4th refrigerant valve, open the second, the 6th water valve and the 3rd refrigerant valve.The ensuing course of work is
Similar with the course of work of the first step, the now exhaust of expanding machine is flowed into the first condenser, and liquid refrigerant condenses from second
Device is flowed into evaporator.
The detailed operation reserve of generating set system of the invention is as shown in figure 4, evaporator is constantly in heated shape
State, the first condenser and the second condenser are in a cycle in the continuous exchange process being heated and cooled.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (6)
1. a kind of gravity-type using low grade heat energy driving is without pump organic working medium TRT, it is characterised in that including：Evaporation
Device, double-condenser, expanding machine, generator, ten water valves, four refrigerant valves, the double-condenser include the first condenser and
Second condenser, four refrigerant valves include the first refrigerant valve, second refrigerant valve, the 3rd refrigerant valve, the 4th refrigerant
Valve；
Wherein, the evaporator is connected by the first refrigerant valve with the first condenser；Evaporator by second refrigerant valve with
Second condenser connects；The import of expanding machine is connected with evaporator；The outlet of expanding machine is cold by the 3rd refrigerant valve and first
Condenser connects；The outlet of expanding machine is connected by the 4th refrigerant valve with the second condenser；By switching different refrigerant valves,
The exhaust of expanding machine is set to flow to the first condenser or the second condenser in the different periods；The evaporator and double condensations
Refrigerant is filled with device, one group of spiral helicine heat exchanger tube is set inside the evaporator and condenser, for the hot water or cold that circulates
But water, and hot water and cooling water are provided by thermal source and low-temperature receiver respectively；
Change hot water by ten water valves to flow to, evaporator, the first condenser and the second condenser are identical in heating process
The thermal source heating of temperature so that the first condenser or the second condenser are identical with the pressure of evaporator, and first condenser
It is higher than the evaporator with the position of second condenser, liquid refrigerant is from heated first condenser and described
Second condenser is flowed into the evaporator, ensures that evaporator constantly produces the refrigerant vapour promotion expansion of HTHP
Machine rotation drives the electrical power generators.
2. for the gravity-type according to claim 1 using low grade heat energy driving without pump organic working medium TRT, it is special
Sign is that ten water valves include the first water valve to the tenth water valve, and the spiral heat exchange tube sent out in device is connected by the third and fourth water valve
Connect thermal source；The spiral heat exchange tube of first condenser connects thermal source by first with the 5th water valve；The spiral heat exchange of first condenser
Pipe connects low-temperature receiver by the 7th with the 9th water valve；The spiral heat exchange tube of second condenser connects heat by second with the 6th water valve
Source；The spiral heat exchange tube of second condenser connects low-temperature receiver by the 8th with the tenth water valve；The delivery port of thermal source and first, second and
3rd water valve is connected, and water return outlet is connected with the four, the 5th and the 6th water valve；The delivery port of cooling tower and the 7th and the 8th water valve connect
Connect, water return outlet is connected with the 9th and the tenth water valve.
3. for the gravity-type according to claim 1 using low grade heat energy driving without pump organic working medium TRT, it is special
Sign is, a boiler water pump is arranged in hot water line；A cooling tower water pump is arranged on cooling water pipeline.
4. for the gravity-type according to claim 1 using low grade heat energy driving without pump organic working medium TRT, it is special
Sign is that the expanding machine is scroll expansion machine.
5. the organic working medium TRT according to claim 1 driven using low grade heat energy, it is characterised in that described
Evaporator and first condenser are respectively arranged with fill port, supplement organic working medium.
6. for the gravity-type according to claim 5 using low grade heat energy driving without pump organic working medium TRT, it is special
Sign is that the organic working medium includes refrigerant R245fa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639695.1A CN107503813A (en) | 2017-07-31 | 2017-07-31 | Using the gravity-type of low grade heat energy driving without pump organic working medium TRT |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710639695.1A CN107503813A (en) | 2017-07-31 | 2017-07-31 | Using the gravity-type of low grade heat energy driving without pump organic working medium TRT |
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| CN201710639695.1A Pending CN107503813A (en) | 2017-07-31 | 2017-07-31 | Using the gravity-type of low grade heat energy driving without pump organic working medium TRT |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916959A (en) * | 2017-12-25 | 2018-04-17 | 安徽环球星新能源科技有限公司 | It is a kind of using low-quality heat source without pump electricity generation system and its electricity-generating method |
| CN108561200A (en) * | 2018-04-04 | 2018-09-21 | 平山载清新能源技术开发有限公司 | A kind of multi-heat source point heat energy power-generating unit |
| CN110388241A (en) * | 2019-07-31 | 2019-10-29 | 东北师范大学 | A kind of automobile engine waste heat recycling circulation system |
| CN112901296A (en) * | 2021-02-04 | 2021-06-04 | 浙江大学 | Organic Rankine cycle power generation method and device for realizing heat recovery in pump-free process |
| CN112901399A (en) * | 2021-01-21 | 2021-06-04 | 浙江理工大学 | Gravitational field mediated work doing device and method |
| CN114183214A (en) * | 2021-11-04 | 2022-03-15 | 武汉理工大学 | Thermal engineering experiment platform based on cold and heat source coupling |
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| CN104121046A (en) * | 2014-07-11 | 2014-10-29 | 浙江大学 | Non-pump type organic Rankine cycle method and device for power generation |
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| CN101004331A (en) * | 2007-01-13 | 2007-07-25 | 青岛大学 | Energy transport system of bidirectional circulated heat pipe |
| CN103453679A (en) * | 2013-08-15 | 2013-12-18 | 常州市康舒环境科技有限公司 | Household wall-mounted flat solar heat-pump water heater and control method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916959A (en) * | 2017-12-25 | 2018-04-17 | 安徽环球星新能源科技有限公司 | It is a kind of using low-quality heat source without pump electricity generation system and its electricity-generating method |
| CN107916959B (en) * | 2017-12-25 | 2023-08-04 | 中能绿色精灵(北京)科技有限公司 | Pump-free power generation system utilizing low-quality heat source and power generation method thereof |
| CN108561200A (en) * | 2018-04-04 | 2018-09-21 | 平山载清新能源技术开发有限公司 | A kind of multi-heat source point heat energy power-generating unit |
| CN110388241A (en) * | 2019-07-31 | 2019-10-29 | 东北师范大学 | A kind of automobile engine waste heat recycling circulation system |
| CN112901399A (en) * | 2021-01-21 | 2021-06-04 | 浙江理工大学 | Gravitational field mediated work doing device and method |
| CN112901296A (en) * | 2021-02-04 | 2021-06-04 | 浙江大学 | Organic Rankine cycle power generation method and device for realizing heat recovery in pump-free process |
| CN112901296B (en) * | 2021-02-04 | 2022-01-18 | 浙江大学 | Organic Rankine cycle power generation method and device for realizing heat recovery in pump-free process |
| CN114183214A (en) * | 2021-11-04 | 2022-03-15 | 武汉理工大学 | Thermal engineering experiment platform based on cold and heat source coupling |
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Application publication date: 20171222 |