CN205297661U - Take waste heat power generation system of calorimeter back to - Google Patents
Take waste heat power generation system of calorimeter back to Download PDFInfo
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- CN205297661U CN205297661U CN201521011268.1U CN201521011268U CN205297661U CN 205297661 U CN205297661 U CN 205297661U CN 201521011268 U CN201521011268 U CN 201521011268U CN 205297661 U CN205297661 U CN 205297661U
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Abstract
The utility model provides a take waste heat power generation system of calorimeter back to, including heat source circulation circuit, working medium circulation circuit and coolant liquid circulation circuit, heat source circulation circuit and working medium circulation circuit carry out heat exchange through the evaporimeter, and working medium circulation circuit and coolant liquid circulation circuit carry out heat exchange through the condenser. This waste heat power generation system includes still that regenerator, pneumatics cut valve and motorised valve soon, and the regenerator is connected in the working medium return circuit, and the regenerator makes the working medium cooling of expander flow direction condenser, makes the working medium of condenser flow direction evaporimeter heat up, pneumatic cutting soon during the valve sets up the working medium return circuit between evaporimeter and expander, the control expander admits air, the working medium route at motorised valve place makes the working medium reposition of redundant personnel that gets into the expander. The utility model discloses a regenerator have still less from power consumptive, littleer cooling tower can be taked to higher thermoelectric efficiency, littleer water pump, reduction expense, adopt the motorised valve simultaneously, improve the security height, protection expander and pipeline safety.
Description
Technical field
This utility model relates to industrial low-quality waste heat recovery field, particularly relates to a kind of organic Rankine bottoming cycle afterheat generating system with regenerator.
Background technology
Rankine cycle refers to a kind of desirably simple steam power cycle, is made up of boiler, steam turbine, condenser and water pump. Its brief operation principle is as follows: water absorbs heat in boiler and superheater, saturation water become superheated steam; Superheated steam enters turbine expansion, externally does work; Exporting steam turbine, superheated steam becomes low pressure moist steam, enters condenser to cooling water exothermic condensation to saturation water; Water pump consumes external work, sends the boosting of condensation water back to boiler, completes power cycle. Organic Rankine bottoming cycle, on Rankine cycle basis, uses low boiling point refrigerant to complete power cycle as cycle fluid.
Although organic Rankine bottoming cycle has extensive utilization in industrial afterheat recovery field, but finds in real process that prior art there is problems in that
1. low temperature heat consumable TV university, thermoelectrical efficiency is low.
2. cooling water amount is relatively big, and infrastructure input cost is high.
3. safety and stability is poor.
Utility model content
In order to overcome the defect existed in above-mentioned prior art, the purpose of this utility model is to provide a kind of afterheat generating system with regenerator, and the power consumption solving existing organic Rankine bottoming cycle is big, cooling water amount big, the problem of safety poor stability.
For realizing above-mentioned purpose of the present utility model, this utility model provides a kind of afterheat generating system with regenerator, including heat-source Cycles loop, working medium circulation loop and coolant closed circuit, described heat-source Cycles loop and working medium circulation loop carry out heat exchange by vaporizer, and described working medium circulation loop and coolant closed circuit carry out heat exchange by condenser; The sender property outlet of described vaporizer connects the working medium import of decompressor, and the working medium flowed out from described decompressor enters working medium pump through condenser, and the working medium flowed out from described working medium pump enters vaporizer working medium import; Also including regenerator, described regenerator is connected in working medium loop, and described regenerator makes decompressor flow to the working medium cooling of condenser, makes the working medium that condenser flows to vaporizer heat up.
In a kind of preferred implementation of the present utility model, also include pneumatic valve of cutting soon, in the described pneumatic working medium loop being arranged between vaporizer and decompressor cutting valve soon, be used for controlling decompressor air inlet.
In another kind of preferred implementation of the present utility model, also include electrodynamic valve, the working medium bypass at described electrodynamic valve place makes the working medium of entrance decompressor tap, the working medium entrance of described electrodynamic valve is in parallel with the pneumatic working medium entrance cutting valve soon, and the sender property outlet of described electrodynamic valve is in parallel with the sender property outlet of decompressor.
In yet another preferred form of the present utility model, described coolant closed circuit is provided with cooling pump, cooling tower and condenser, described cooling pump drives the coolant that cooling tower flows out to flow in coolant circulation line, carries out heat exchange through condenser and working medium.
In still another preferred implementation of the present utility model, described working medium pump is frequency conversion working medium pump.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1. comparing traditional afterheat generating system, this utility model has less from power consumption, higher thermoelectrical efficiency, proper use of due to regenerator, making cooling water inflow relatively reduce, can adopt less cooling pump, electricity consumption is less, and, owing to regenerator cycle fluid out has higher quality, so at thermal source, when evaporator outlet parameter is consistent, the organic working medium amount that vaporizer can evaporate can increase, and amount of work increases therewith.
2. afterheat generating system is after adding regenerator, and the circulating load of cooling water decreases, and when being left out cooling tower versatility, can take less cooling tower, reduce capital construction land used, save system input cost.
3. safety is high, is provided with and pneumatic cuts valve soon in system before decompressor, when load used by user reduces, during electromotor hypervelocity, can emergency cut-off decompressor air inlet, open bypass electrodynamic valve, protection decompressor and pipeline safety.
4. good stability, due to the selection of system adjustable frequency motor, when fluctuation occurs thermal source, working medium circulation amount can be increased and decreased by control system according to the vaporizer sender property outlet degree of superheat, so that system stable operation.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the afterheat generating system structural representation with regenerator of the present utility model.
Accompanying drawing labelling:
1 vaporizer; 2 pneumatic cut valve soon; 3 electrodynamic valves; 4 decompressors; 5 regenerators; 6 piping filters;
7 frequency conversion working medium pumps; 8 condensers; 9 cooling water pumps; 10 cooling towers; 11-16 stop valve;
17 electromotors.
Detailed description of the invention
Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining this utility model, and it is not intended that to restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, can be mechanically connected or electrical connection, can also be the connection of two element internals, it is possible to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
Low-quality organic rankie cycle system is mainly used in low temperature exhaust heat, including waste water, the recycling of waste gas, waste thermal energy is changed into the kinetic energy of decompressor, can be used for driving pump class, blower fan to rotate, electrical power generators etc. Rankine cycle system is intended to improve system thermal electrical efficiency mainly following approach: 1. improve thermal source initial conditions, including heat source temperature, thermal source pressure. 2. reduce low-temperature receiver end condition, mainly cooling water temperature. 3. take intergrade reheating, it is adaptable to the steam turbine of large-size thermal power plant. 4. take extraction cycle.
In this utility model, thermal source utilizes front and back temperature, the pressure requirements set excursion according to user. For improving the thermoelectrical efficiency of the low temperature exhaust heat organic rankine cycle system having temperature specifications before and after this utilization, this utility model provides a kind of afterheat generating system with regenerator, as it is shown in figure 1, it includes heat-source Cycles loop, working medium circulation loop and coolant closed circuit. Wherein, heat-source Cycles loop and working medium circulation loop carry out heat exchange, working medium circulation loop and coolant closed circuit by vaporizer and carry out heat exchange by condenser. The sender property outlet of vaporizer connects the working medium import of decompressor, and the working medium flowed out from decompressor enters working medium pump through condenser, and the working medium flowed out from working medium pump enters vaporizer working medium import, and in the present embodiment, working medium pump is frequency conversion working medium pump. Decompressor drives energy consumption equipment (such as electromotor, blower fan or pump) to run.
In the present embodiment, this afterheat generating system also includes regenerator, and regenerator is connected in working medium loop, and regenerator makes decompressor flow to the working medium cooling of condenser, makes the working medium that condenser flows to vaporizer heat up. In a kind of embodiment more preferably of this utility model, regenerator includes cooling part and heating-up section, and cooling part is arranged at decompressor to the working medium loop of condenser, and heating-up section is arranged at condenser to the working medium loop of vaporizer. In the preferred implementation that this utility model is other, regenerator can also adopt other regenerator structure that existing those skilled in the art are general.
In the present embodiment, being provided with and pneumatic cut valve soon in the working medium loop between vaporizer and decompressor, this pneumatic valve of cutting soon is for controlling decompressor air inlet. Also setting up electrodynamic valve in present embodiment, the working medium path at electrodynamic valve place makes the working medium of entrance decompressor tap, and the working medium entrance of electrodynamic valve is in parallel with the pneumatic working medium entrance cutting valve soon, and the sender property outlet of electrodynamic valve is in parallel with the sender property outlet of decompressor.
In the present embodiment, being provided with cooling pump, cooling tower and condenser in coolant closed circuit, cooling pump drives the coolant that cooling tower flows out to flow in coolant circulation line, carries out heat exchange through condenser and working medium.
Working medium circulation loop is also provided with at least one piping filter 6, for filtering the impurity in working medium. Working medium circulation loop and coolant closed circuit are respectively arranged with at least one stop valve, for controlling to cut off the circulation of working medium and coolant.
In the present embodiment, when thermal source enters vaporizer 1, control frequency conversion working medium pump 7 slow-speed of revolution to run, now pneumatic cut valve 2 soon, electrodynamic valve 3, stop valve 11, stop valve 12, stop valve 13, stop valve 14, stop valve 15, stop valve 16 are all in open mode, and a small amount of working medium promotes decompressor 4 slowly to rotate, and drive electrical generators 17 generates electricity.Hereafter it is stepped up frequency conversion working medium pump 7 rotating speed, increases systematic working medium circulating load, till the user after thermal source outlet temperature meets utilization requires. due to the employing cutting valve 2 and electrodynamic valve 3 soon pneumatic in system, when load used by user reduces, during electromotor hypervelocity, can emergency cut-off decompressor 4 air inlet, open bypass electrodynamic valve 3, protection decompressor 4 and pipeline safety. while circulating load increases, slowly closing electrodynamic valve 3, working medium is allowed to do work all through decompressor 4, compare decompressor 4 import from decompressor 4 organic working medium pressure and temperature out all to decline to some extent, but its heat still may utilize, this utility model increases a regenerator 5 between decompressor 4 and condenser 8, reduce the temperature of decompressor 4 working medium out, this way is advantageous in that, save the load of low-temperature receiver, thus the cooling water that condenser 8 needs reduces, the power drop of cooling water pump 9, the volume of cooling tower 10 also will reduce to some extent. interpolation due to regenerator 5, when working medium in condenser 8 out after frequency conversion working medium pump 7 supercharging, heat up through regenerator 5, thus vaporizer 1 is not compared to when increasing regenerator 5, the inlet temperature of cold side organic working medium is relatively to improve, when the heat that thermal source provides is certain, although the temperature of cold side organic working medium outlet can be subject to the restriction of heat source temperature to improve further, raising due to vaporizer 1 organic working medium side-entrance temperature, when vaporizer 1 outlet temperature is consistent with original (not adding regenerator), the maximum organic working medium amount that vaporizer 1 evaporates can increase, it is understood that, the shaft work that the product of enthalpy difference is exactly decompressor 4 imported and exported by working medium flow and decompressor 4, the evaporation capacity increasing vaporizer 1 is also equivalent to improve the shaft work of decompressor, thus reaching to increase the purpose of efficiency.
In a kind of preferred implementation of the present utility model, it is the thermal source of 3000kw for thermic load, when heat source temperature is limited in below 90 degree, adopt organic working medium R245fa as cycle fluid, increasing regenerator, compare the situation not increasing regenerator, generated output increases 10kw, thermoelectrical efficiency improves 0.4 percentage point, and cooling water inflow reduces 1t/h. If the load of thermal source is higher, then generated output increase amount and cooling water minimizing amount will further improve.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principle of the present utility model and objective, scope of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. the afterheat generating system with regenerator, it is characterized in that: include heat-source Cycles loop, working medium circulation loop and coolant closed circuit, described heat-source Cycles loop and working medium circulation loop carry out heat exchange by vaporizer, and described working medium circulation loop and coolant closed circuit carry out heat exchange by condenser; The sender property outlet of described vaporizer connects the working medium import of decompressor, and the working medium flowed out from described decompressor enters working medium pump through condenser, and the working medium flowed out from described working medium pump enters vaporizer working medium import;
Described afterheat generating system also includes regenerator, pneumatic valve and the electrodynamic valve cut soon, and described regenerator is connected in working medium loop, and described regenerator makes decompressor flow to the working medium cooling of condenser, makes the working medium that condenser flows to vaporizer heat up;
Described pneumatic valve of cutting soon is arranged in the working medium loop between vaporizer and decompressor, is used for controlling decompressor air inlet;
The working medium bypass at described electrodynamic valve place makes the working medium of entrance decompressor tap, and the working medium entrance of described electrodynamic valve is in parallel with the pneumatic working medium entrance cutting valve soon, and the sender property outlet of described electrodynamic valve is in parallel with the sender property outlet of decompressor.
2. the afterheat generating system with regenerator as claimed in claim 1, it is characterized in that: described coolant closed circuit is provided with cooling pump, cooling tower and condenser, described cooling pump drives the coolant that cooling tower flows out to flow in coolant circulation line, carries out heat exchange through condenser and working medium.
3. the afterheat generating system with regenerator as claimed in claim 1, it is characterised in that: described working medium circulation loop is provided with at least one piping filter, for filtering the impurity in working medium.
4. the afterheat generating system with regenerator as claimed in claim 1, it is characterised in that: on described working medium circulation loop and coolant closed circuit, it is respectively arranged with at least one stop valve, for controlling to cut off the circulation of working medium and coolant.
5. the afterheat generating system with regenerator as claimed in claim 1, it is characterised in that: described working medium pump is frequency conversion working medium pump.
6. the afterheat generating system with regenerator as claimed in claim 1, it is characterized in that: described regenerator includes cooling part and heating-up section, described cooling part is arranged at decompressor to the working medium loop of condenser, and described heating-up section is arranged at condenser to the working medium loop of vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011268.1U CN205297661U (en) | 2015-12-08 | 2015-12-08 | Take waste heat power generation system of calorimeter back to |
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|---|---|---|---|
| CN201521011268.1U CN205297661U (en) | 2015-12-08 | 2015-12-08 | Take waste heat power generation system of calorimeter back to |
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| CN205297661U true CN205297661U (en) | 2016-06-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915783A (en) * | 2018-07-11 | 2018-11-30 | 北京石油化工学院 | A kind of lubricating system of positive-displacement expansion engine |
| CN109166637A (en) * | 2018-07-25 | 2019-01-08 | 华北电力大学 | A kind of pressurized-water reactor nuclear power plant nuclear safety system and method based on ORC |
| CN110080848A (en) * | 2019-05-08 | 2019-08-02 | 上海发电设备成套设计研究院有限责任公司 | A kind of supercritical carbon dioxide coal circulation burning electricity generation system |
| CN114562346A (en) * | 2022-03-07 | 2022-05-31 | 天津大学 | Parallel configuration power system of expansion machine |
-
2015
- 2015-12-08 CN CN201521011268.1U patent/CN205297661U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915783A (en) * | 2018-07-11 | 2018-11-30 | 北京石油化工学院 | A kind of lubricating system of positive-displacement expansion engine |
| CN109166637A (en) * | 2018-07-25 | 2019-01-08 | 华北电力大学 | A kind of pressurized-water reactor nuclear power plant nuclear safety system and method based on ORC |
| CN110080848A (en) * | 2019-05-08 | 2019-08-02 | 上海发电设备成套设计研究院有限责任公司 | A kind of supercritical carbon dioxide coal circulation burning electricity generation system |
| CN110080848B (en) * | 2019-05-08 | 2024-02-02 | 上海发电设备成套设计研究院有限责任公司 | Supercritical carbon dioxide circulating coal-fired power generation system |
| CN114562346A (en) * | 2022-03-07 | 2022-05-31 | 天津大学 | Parallel configuration power system of expansion machine |
| CN114562346B (en) * | 2022-03-07 | 2023-10-10 | 天津大学 | Parallel configuration power system of expander |
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