CN205618211U - It is sealed system for organic rankine cycle - Google Patents
It is sealed system for organic rankine cycle Download PDFInfo
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- CN205618211U CN205618211U CN201620476080.2U CN201620476080U CN205618211U CN 205618211 U CN205618211 U CN 205618211U CN 201620476080 U CN201620476080 U CN 201620476080U CN 205618211 U CN205618211 U CN 205618211U
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Abstract
The utility model discloses an it is sealed system for organic rankine cycle, including the evaporimeter, the expander, an electric generator, first condenser, the working medium pump, the characterized by evaporimeter, the expander, first condenser, the closed loop circulation is constituteed in proper order to the working medium pump, the expander passes through the reducing gear box and links with the generator, and be equipped with leading sealedly between expander and the reducing gear box in proper order, the dry gas is sealed and rearmounted sealed, be equipped with technology gas air inlet on leading the sealing, it keeps apart the gas air inlet to be equipped with on rearmounted the sealing, it draws the pipeline to be equipped with leakage gas on the dry gas is sealed, leakage gas is drawn the other end of pipeline and is connected with recovery unit, recovery unit's condensate outlet and first condenser are connected. The characteristics of this kind of structure utilize that leading sealed, rearmounted sealed and dry gas is sealed to reach good sealed effect.
Description
Technical field
This utility model relates to cogeneration technology field, particularly relates to a kind of sealing system being applied to organic Rankine bottoming cycle.
Background technology
Energy-saving and emission-reduction, raising energy utilization rate are the important contents of China's energy development strategy.China's industrial waste heat resource enriches, and recycles the emphasis that industrial exhaust heat is energy-saving and emission-reduction work.Traditional method utilizing afterheat steam to drive steam turbine generating be applicable to height, pick up the heat more than temperature, a large amount of cryogenic waste heat resources existed for each industrial circle lack effective technological means to carry out reclaiming generating.
Low-temperature industrial cogeneration technology based on organic media belongs to heat to power output technology, such as organic rankie cycle (being called for short ORC), Kalina circulates, ORC is the Rankine cycle with low-boiling-point organic compound as working medium, the low temperature heat energy of recyclable different temperatures scope, use this generation mode that UTILIZATION OF VESIDUAL HEAT IN in low temperature range is had remarkable advantage, system cold end group this maintenance malleation, system is maintained without arranging system cold end vacuum, system working pressure is low, reduce turbine size and tubing consumption, organic working medium is substantially constant entropy working medium or master stream body, without Overheating Treatment, will not there iing water droplet, under high-speed case, the blade to turbomachinery impacts infringement.Developing from technology, low temperature organic Rankine bottoming cycle technology is the economical and effective scheme utilizing low-temperature industrial waste heat, underground heat and solar energy.
ORC typically uses different low-boiling-point organic compound (or mixture) as working medium, and a lot of organic working medium all have atmospheric ozone damage capability in various degree and a greenhouse effect, or there is toxicity, inflammable and explosive property, corrosivity etc. to equipment pipe.On the one hand the feature of environmental protection and safety are worked the mischief by the leakage of working medium, on the other hand the increase of unit operation cost is caused, if simultaneity factor is mixed into incoagulable gas, efficient condensing capacity lost by condenser, improve condensing pressure simultaneously, condenser pressure rising can reduce decompressor acting ability, it is seen that sealing system has vital effect in organic Rankine cycle power generation system.
In prior art, conventional machinery seals the axle as decompressor and seals, but mechanical seal cannot adapt to the seal request of higher line speed, simultaneously because there is Working medium gas and lubricant pollution probability in mechanical seal, higher sealing power consumption and the defect such as sealing life is shorter, it is impossible to be competent at the seal request of organic Rankine bottoming cycle completely.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of good sealing effect, and can effectively solve the sealing system being applied to organic Rankine bottoming cycle of refrigerant leakage problem.
In order to achieve the above object, the sealing system being applied to organic Rankine bottoming cycle designed by this utility model, including vaporizer, decompressor, electromotor, first condenser, working medium pump, it is characterized in that vaporizer, decompressor, first condenser, working medium pump forms closed loop cycle successively, decompressor is linked with electromotor by reduction box, and between decompressor and reduction box, it is sequentially provided with preposition sealing, dry gas seals and rearmounted sealing, preposition sealing is provided with process gas air inlet, rearmounted sealing is provided with isolation gas air inlet, dry gas seals is provided with leakage gas introduction pipe, the other end of leakage gas introduction pipe is connected with retracting device, the condensate outlet of retracting device and the first condenser connect.The feature of this structure is to utilize preposition sealing, rearmounted sealing and dry gas seals to reach good sealing effectiveness.
In order to extend the service life of seal member, described preposition sealing and rearmounted be sealed into non-contacting sealing structure.Wherein non-contact seal structure can be labyrinth seal or labyrinth seal such that it is able to effectively increases service life, and reduces air leakage.
Further scheme is, described retracting device by refrigeration cycle structure, reclaim room and sorption cycle structure and form, wherein sorption cycle structure be provided with two groups parallel with one another；Described recovery room is provided with leakage gas import, condensate outlet and the outlet of isolation gas, wherein leakage gas import is connected with leakage gas fairlead, condensate outlet is connected by ball-cock assembly and the first condenser, and isolation gas outlet passes sequentially through recovery room exhaust-valve, emptying compressor is connected with sorption cycle structure；Described refrigeration cycle structure is made up of the second condenser, expansion valve, heat exchanger, temperature sensor, refrigeration compressor closed loop, and wherein heat exchanger is arranged on recovery chamber interior；Described sorption cycle structure includes adsorption tanks, adsorption tanks are provided with emptying air inlet, emptying gas outlet and regenerate QI KOU, heat exchanger it is provided with in adsorption tanks, wherein emptying air inlet is connected with emptying compressor by emptying foreline valve, emptying gas outlet is connected with emptying solenoid valve, regenerates QI KOU and is connected with the first condenser by regeneration solenoid valve.The wherein said condensate outlet reclaiming room and the first condenser are connected with startup pump.Described temperature sensor is electrically connected with recovery room exhaust-valve, preposition electromagnetic valve by control chip.
Can be further processed gas leakage by retracting device, sorption cycle structure can effectively adsorb the organic working medium in leakage gas, and is transmitted back to organic Rankine bottoming cycle.Two groups of sorption cycle structures the most in parallel can reach the effect of a preparation and a use, and when one group of sorption cycle structure needs to carry out absorption regeneration, another group can directly use in doubling.
This utility model the sealing system being applied to organic Rankine bottoming cycle obtained, whole blood circulation employs effective non-contact seals, has good seal, leaks few feature.Leakage gas is carried out reclaiming simultaneously, will leak out the organic working medium taken out of in gas and adsorb recovery completely, and feed back in organic Rankine bottoming cycle.The most also there is a preparation and a use two and overlap sorption cycle structure so that the process of regeneration does not affect the operation of organic Rankine bottoming cycle.Further, in retracting device, it is provided with a series of automatic business processing, controls to reclaim the recovery of indoor condensed fluid by ball-cock assembly, automatically controlled the startup of sorption cycle structure by temperature sensor, be effectively accomplished energy-saving effect.
Accompanying drawing explanation
Fig. 1 is organic Rankine bottoming cycle sealing system schematic diagram.
Fig. 2 is retracting device schematic diagram.
Detailed description of the invention
The utility model will be further described to combine accompanying drawing below by embodiment.
Embodiment
1
。
As shown in Figure 1 and Figure 2, a kind of sealing system being applied to organic Rankine bottoming cycle that the present embodiment describes, including vaporizer A, decompressor B, electromotor E, the first condenser I, working medium pump J and retracting device H, described decompressor B is connected by reduction box D with electromotor J, preposition sealing F, dry gas seals C and rearmounted sealing G it is disposed with between decompressor B and reduction box D, preposition sealing F and rearmounted sealing G is the non-contacting seal such as labyrinth seal or labyrinth seal, dry gas seals is mechanical single seal, optional Double End or in-line, reduces leakage rate further.Being passed through process gas at preposition sealing F, be passed through separation gas such as nitrogen at rearmounted sealing G, the leakage gas after dry gas seals C is incorporated in retracting device H by leakage gas fairlead K, and after retracting device H processes, organic working medium condensed fluid returns in the first condenser I.
Described retracting device H include reclaim room 7, refrigeration cycle structure and sorption cycle structure composition, wherein sorption cycle structure have two groups parallel with one another.Described recovery room 7 is provided with leakage gas import, condensate outlet and the outlet of isolation gas, wherein leakage gas import is connected with leakage gas fairlead, condensate outlet is connected with the first condenser I by ball-cock assembly 8 and startup pump 17, and isolation gas outlet passes sequentially through recovery room exhaust-valve 6, emptying compressor 5 is connected with sorption cycle structure.
Kind of refrigeration cycle is made up of refrigeration compressor 10, expansion valve the 9, second condenser 11 and temperature sensor 16, heat exchanger constitutes vaporization chamber in being arranged on recovery room 7, after refrigeration compressor 10 startup optimization, it is lowered into reclaiming the temperature and pressure leaking gas in room 7, organic working medium in leakage gas is condensed into liquid and drops onto the bottom reclaiming room 7, and leak isolation gas in gas due to boiling point relatively low, constantly accumulate in reclaiming room 7.Reclaim equipped with ball-cock assembly 8 in room 7, when condensed fluid accumulates certain liquid level, start pump 17 and liquid is pumped in the first condenser I.When the isolation reclaimed in room is large-minded to when starting to affect the effective heat transfer area reclaiming heat exchanger in room 7, the temperature that temperature sensor 16 is sensed begins to decline, when reaching setting value, reclaiming room exhaust-valve 6 to open, the isolation gas reclaimed in room is extracted and is transported in sorption cycle structure by emptying compressor 5, along with the isolation gas reclaimed in room 7 constantly reduces, the temperature that temperature sensor 16 is sensed rises, when reaching setting value, reclaiming room exhaust-valve 6 and close, emptying compressor 5 is out of service.
Described sorption cycle structure, has two groups to include adsorption tanks respectively, contains the adsorbent such as carbon etc. of energy active adsorption organic working medium, according to the fertile absorber kind that working medium different choice is different in adsorption tanks.Adsorption tanks it is provided with emptying air inlet, emptying gas outlet and regenerates QI KOU, in adsorption tanks, being provided with heat exchanger.Wherein the wherein emptying air inlet of the first adsorption tanks 12 is connected with emptying compressor 5 by first row sky foreline valve 14, and emptying gas outlet is connected with the first emptying solenoid valve 1, regenerates QI KOU and is connected with the first condenser by the first regeneration solenoid valve 2；The wherein emptying air inlet of the second adsorption tanks 13 is connected with emptying compressor 5 by second row sky foreline valve 15, and emptying gas outlet is connected with the second emptying solenoid valve 4, regenerates QI KOU and is connected with the second condenser by the second regeneration solenoid valve 3
Empty stage, the first preposition electromagnetic valve of adsorption tanks 14 is opened, first adsorption tanks emptying solenoid valve 1 is opened, and the gas reclaimed in room is transported in the first adsorption tanks (12), after the organic working medium molecule absorption that the gas being discharged may be taken away by the first adsorption tanks (12) by emptying compressor 5, isolation gas is emptied, when the first adsorption tanks (12) are after repeatedly emptying absorption, in order to maintain absorption efficiency, need to carry out absorbability regeneration, now, the function of isolation gas emptying is undertaken by the second adsorption tanks 13.When first adsorption tanks 12 regenerate, by all closed electromagnetic valves being connected with the first adsorption tanks 12, waste heat thermal source is incorporated in the first adsorption tanks 12, heat the first adsorption tanks 12, absorption organic working medium molecule on the sorbent is made to depart from adsorbent, kept for the first adsorption tanks 12 temperature certain time, open the regeneration solenoid valve 2 of the first adsorption tanks 12, organic working medium gas in tank is drained in the first condenser I, close waste heat thermal source, after natural cooling, when the first adsorption tanks 12 need emptying, open cooling water, reduce the temperature of the first adsorption tanks 12, improve the absorbability to organic working medium.Mutually switched by two adsorption tanks, complete the continuous function that emptying, regeneration and organic working medium reclaim.
Claims (5)
1. the sealing system being applied to organic Rankine bottoming cycle, including vaporizer, decompressor, electromotor, first condenser, working medium pump, it is characterized in that vaporizer, decompressor, first condenser, working medium pump forms closed loop cycle successively, decompressor is linked with electromotor by reduction box, and between decompressor and reduction box, it is sequentially provided with preposition sealing, dry gas seals and rearmounted sealing, preposition sealing is provided with process gas air inlet, rearmounted sealing is provided with isolation gas air inlet, dry gas seals is provided with leakage gas introduction pipe, the other end of leakage gas introduction pipe is connected with retracting device, the condensate outlet of retracting device and the first condenser connect.
The sealing system being applied to organic Rankine bottoming cycle the most according to claim 1, is characterized in that described preposition sealing and rearmounted is sealed into non-contacting sealing structure.
The sealing system being applied to organic Rankine bottoming cycle the most according to claim 1 and 2, it is characterized in that described retracting device by refrigeration cycle structure, reclaim room and sorption cycle structure and form, wherein sorption cycle structure be provided with two groups parallel with one another；Described recovery room is provided with leakage gas import, condensate outlet and the outlet of isolation gas, wherein leakage gas import is connected with leakage gas fairlead, condensate outlet is connected by ball-cock assembly and the first condenser, and isolation gas outlet passes sequentially through recovery room exhaust-valve, emptying compressor is connected with sorption cycle structure；Described refrigeration cycle structure is made up of the second condenser, expansion valve, heat exchanger, temperature sensor, refrigeration compressor closed loop, and wherein heat exchanger is arranged on recovery chamber interior；Described sorption cycle structure includes adsorption tanks, adsorption tanks are provided with emptying air inlet, emptying gas outlet and regenerate QI KOU, heat exchanger it is provided with in adsorption tanks, wherein emptying air inlet is connected with emptying compressor by emptying foreline valve, emptying gas outlet is connected with emptying solenoid valve, regenerates QI KOU and is connected with the first condenser by regeneration solenoid valve.
The sealing system being applied to organic Rankine bottoming cycle the most according to claim 3, is characterized in that the described condensate outlet reclaiming room and the first condenser are connected with startup pump.
The sealing system being applied to organic Rankine bottoming cycle the most according to claim 4, is characterized in that described temperature sensor is electrically connected with recovery room exhaust-valve, preposition electromagnetic valve by control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476080.2U CN205618211U (en) | 2016-05-24 | 2016-05-24 | It is sealed system for organic rankine cycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476080.2U CN205618211U (en) | 2016-05-24 | 2016-05-24 | It is sealed system for organic rankine cycle |
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| CN205618211U true CN205618211U (en) | 2016-10-05 |
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| CN201620476080.2U Expired - Fee Related CN205618211U (en) | 2016-05-24 | 2016-05-24 | It is sealed system for organic rankine cycle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822374A (en) * | 2016-05-24 | 2016-08-03 | 杭州汽轮动力集团有限公司 | Sealing system applied to organic Rankine cycle |
| CN108626398A (en) * | 2018-06-08 | 2018-10-09 | 中国船舶重工集团公司第七〇九研究所 | A kind of system that high pressure oil-containing gases leakage reclaiming clean recharges |
| US10598049B2 (en) | 2017-10-03 | 2020-03-24 | Enviro Power, Inc. | Evaporator with integrated heat recovery |
| US11204190B2 (en) | 2017-10-03 | 2021-12-21 | Enviro Power, Inc. | Evaporator with integrated heat recovery |
-
2016
- 2016-05-24 CN CN201620476080.2U patent/CN205618211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822374A (en) * | 2016-05-24 | 2016-08-03 | 杭州汽轮动力集团有限公司 | Sealing system applied to organic Rankine cycle |
| US10598049B2 (en) | 2017-10-03 | 2020-03-24 | Enviro Power, Inc. | Evaporator with integrated heat recovery |
| US11204190B2 (en) | 2017-10-03 | 2021-12-21 | Enviro Power, Inc. | Evaporator with integrated heat recovery |
| CN108626398A (en) * | 2018-06-08 | 2018-10-09 | 中国船舶重工集团公司第七〇九研究所 | A kind of system that high pressure oil-containing gases leakage reclaiming clean recharges |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |