CN105258391A - Flash evaporation working medium pump type low-heat-source heat pump - Google Patents
Flash evaporation working medium pump type low-heat-source heat pump Download PDFInfo
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- CN105258391A CN105258391A CN201410343716.1A CN201410343716A CN105258391A CN 105258391 A CN105258391 A CN 105258391A CN 201410343716 A CN201410343716 A CN 201410343716A CN 105258391 A CN105258391 A CN 105258391A
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Abstract
The invention discloses a flash evaporation working medium pump type low-heat-source heat pump. According to the flash evaporation working medium pump type low-heat-source heat pump, through the technique that by means of a tube pass working medium liquid pump circulating evaporator, power circulating working medium evaporating liquor passes through a tube pass and circulating media pass through a shell pass, supporting of negative-temperature low-temperature-level heat source open heat source tower heat pump system equipment is achieved, the heat transfer efficiency of a heat exchanger is improved, the anti-frost performance is improved, and the heat exchange performance can be improved by 40% compared with conventional direct expansion dry type vapor-liquid two-phase liquid evaporation; a multi-module compressor is arranged according to the low-temperature working condition of -25 DEG C, and thus it is guaranteed that the heat exchange area of the heat exchanger is fully used under the low heat source working condition; through a low-pressure protective device gulp valve in a protective technological measure, a fault can be removed effectively and rapidly through a low-temperature frozen machine ice melting device when a heat pump unit is in an abnormal operation state, in this way, normal operation of the heat pump unit is guaranteed, a low-temperature-level heat source can be used for heating of the heat pump more economically, hazy air is purified while heating is achieved, and fossil energy is replaced.
Description
Technical field
The flash distillation working medium pump low heat heat pump that type of the present invention relates to relates to the large field of China's new energy source energy-saving technology, environmental protection and resource two.
Flash distillation working medium pump low heat heat pump, will replace conventional inefficiencies dry type heat of evaporation pump assembly tube side/shell side vapour-liquid and be evaporated to the power conveying flash heat transfer evaporation that high efficiency liquid pump formula tube side/shell side forms liquid-liquid.The shell side of contrast application at present walks working medium; tube side walks the protective value that medium (water body) full-liquid type heat pump, falling film type heat pump application have higher good low pressure tonifying Qi under negative temperature low level heat source state, ice-melt is thawed; heat source side circulatory mediator can not occur because of the not enough frost heave heat exchanger tube of concentration causes unit to damage phenomenon; be applicable to apply more negative temperature low level heat source open type heat source tower heat pump system; improve the economy that heat pump heat supply uses low level heat source, while heat-obtaining, purify haze air substitute fossil energy.
Background technology
Along with the raising of people's living standard, the requirement of people to architectural environment is also more and more higher.Various refrigeration air-conditioner ventilates and heat supply process is promoted use day by day under construction, at current energy-saving low-carbon, under reducing the large form of haze weather green low-carbon building, the low-carbon environment-friendly energy-saving heating mode that heat source tower is originated as heat pump cold (heat) source, plays key player in low-carbon (LC) building.But in longtime running project investigation display:
Negative temperature low level heat source open type heat source tower utilizes the freezing salting liquid of external cheapness directly to form liquid film absorption from the clammy thermal source in haze air at filling surface winter in south, the latent heat resource energy that in circulating air, water capacity is relative greatly enriches.But the condensation moisture of frozen soln in the simultaneously stability air obtaining energy, frozen soln is analysed wet dilution phenomenon and is seriously caused solution concentration freezing point to rise, and often occurs once control the heat pump full-liquid type unit evaporimeter tube side heat exchanger tube frost heave damage phenomenon that easily causes not in place.Thus solve and improve open type heat source tower heat pump unit and should have better low temperature resistant anti-freezing property, become southern area and apply one of key technology of heat source tower heat pump technical substitution fossil energy.
Summary of the invention
Key in summary of the invention herein and describe paragraph.Type flash distillation working medium pump low heat heat pump object of the present invention, be the technological process being walked circulatory mediator by tube side working medium liquid pump circulating evaporator tube side walking power cycle fluid evaporated liquor, shell side, what reach negative temperature low level heat source open type heat source tower heat pump system equipment is supporting, improve heat exchanger heat transfer efficiency and increase anti-freezing property, contrast conventional direct expansion dry type vapour-liquid two fluid evaporators can improve the heat exchange property of 40%; Be to be by ensure that tube side working medium gravity liquid evaporimeter under limit low heat operating mode-18 DEG C of air themperatures in winter (increasing compressor parallel number of units by low heat attenuation) by worst cold case configuration multimode compressor, shell side working fluid condenses device heat exchanger heat exchange area is fully used, entirety decreases source source pump configuration number of units by the numbers; Be by the low-voltage protection device aeration valve in its protection technological measure, low-temperature frozen machine deicing device can discharge fault fast effectively under generation source pump abnormal operational conditions, ensures that source pump is normally run.
Economy of the present invention, reasonably to run, current China negative temperature low level heat source heat source tower pump open cooling tower heat-obtaining can be solved, application tube side walks the fatal defects problem of the easy frost heave of medium, and flash distillation working medium pump low heat heat pump can provide safe and reliable economy guarantee for southern area open type heat source tower heat pump technology maturation.
The technical scheme of type of the present invention is: comprise by liquid pump tube side part of appliance composite construction, inverse Carnot cycle flash liquid pump type system composition.
Described liquid pump tube side part of appliance composite construction 1; comprise by worst cold case module condenses machine; discharge line oil separator; shell side working fluid condenses device, working medium circulation choke valve, flash distillation feed flow back-steam separator; working medium circulation solution feed pump; tube side working medium circulation evaporimeter, low-voltage protection device aeration valve, low-temperature frozen machine deicing device forms.
Described tube side working medium circulation evaporimeter; the parallel connection of shell side working fluid condenses device is fixing; be distributed with worst cold case module condenses machine, discharge line oil separator, worst cold case module condenses machine, low-voltage protection device aeration valve above; low-temperature frozen machine deicing device is configured in shell side side medium on tube side working medium circulation evaporimeter; flash distillation feed flow back-steam separator can in tube side working medium circulation evaporimeter; shell side working fluid condenses have a high regard for meaning absolute altitude install, working medium circulation solution feed pump install with flash distillation feed flow back-steam separator below.
Described inverse Carnot cycle flash liquid pump type system 2 comprises by worst cold case module condenses machine, discharge line oil separator, condenser shell side working medium side, condenser tube side side medium, working medium circulation choke valve, working medium filter, separator flash distillation feed flow oil back chamber, separator back-steam liquid vapour disengagement chamber, working medium circulation solution feed pump, maintenance valve 6A, maintenance valve 6B, evaporimeter tube side working medium side, evaporimeter shell side side medium, low-temperature frozen machine deicing device forms.
Described worst cold case module condenses machine exhaust outlet valve P is connected with discharge line oil separator air inlet H1 by pipeline, discharge line oil separator gas outlet H2 is connected with condenser shell side working medium side air inlet by pipeline, discharge line oil separator oil-out H3 passes through valve, magnetic valve Y and pipeline are connected with worst cold case module condenses machine oil return valve ZV, discharge line oil separator gas outlet H4 inhales vapour collector through low-voltage protection device aeration valve with worst cold case module condenses machine by pipeline and is connected, condenser shell side working medium side liquid outlet is through working medium filter, pipeline is connected with working medium circulation choke valve entrance, the outlet of working medium circulation choke valve is connected with separator flash distillation feed flow oil back chamber low pressure throttling entrance A by pipeline, separator flash distillation feed flow oil back chamber liquid outlet B is connected with evaporimeter tube side working medium side entrance ZA by the road, evaporimeter tube side working medium side outlet ZB is connected with separator back-steam liquid vapour disengagement chamber air intake C by pipeline, separator flash distillation feed flow oil back chamber foam-like multiple spot valve oil return opening E inhales vapour collector by magnetic valve Z and pipeline with worst cold case module condenses machine and is connected, separator back-steam liquid vapour disengagement chamber venthole D inhales steam ports valve L by pipeline and worst cold case module condenses machine and is connected, condenser tube side side medium hot water outlet QY to be intake with heating demand side by Outer Tube and is connected, the condenser tube side side medium hot water QZ that answers back is connected with heating demand side backwater by Outer Tube, evaporimeter tube side side medium cryogenic media outlet ZY is connected with heat source side heat source tower inlet by Outer Tube, and evaporimeter tube side side medium cryogenic media import ZW is connected with heat source side heat source tower liquid outlet by Outer Tube.
Accompanying drawing explanation
Fig. 1 is type one embodiment of the present invention " flash distillation working medium pump low heat heat pump " system principle schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing: Fig. 1 is described further with structural representation respectively to type of the present invention " flash distillation working medium pump low heat heat pump ".
With reference to accompanying drawing, the present embodiment comprises by liquid pump tube side part of appliance composite construction, inverse Carnot cycle flash liquid pump type system composition.
Illustrate: figure hollow core arrow represents air, Working medium gas flow direction, filled arrows represents circulatory mediator, worker quality liquid, water circulation flow direction.
Described liquid pump tube side part of appliance composite construction 1, comprises by worst cold case module condenses machine 1.0; Discharge line oil separator 2.0; Shell side working fluid condenses device 3.0; Working medium circulation choke valve 4.0; Flash distillation feed flow back-steam separator 5.0; Working medium circulation solution feed pump 6.0; Tube side working medium circulation evaporimeter 7.0; Low-voltage protection device aeration valve 8.0; Low-temperature frozen machine deicing device 9.0 is formed.
Described tube side working medium circulation evaporimeter 7.0, shell side working fluid condenses device 3.0 adopt in parallel fixing, are distributed with worst cold case module condenses machine 1.0, discharge line oil separator 2.0, worst cold case module condenses machine 1.0, low-voltage protection device aeration valve 8.0 above; Low-temperature frozen machine deicing device 8.0 to be configured on tube side working medium circulation evaporimeter 7.0 on shell side side medium 7.2; Flash distillation feed flow back-steam separator 5.0 can be installed in tube side working medium circulation evaporimeter 7.0, any absolute altitude of shell side working fluid condenses device 3.0; Working medium circulation solution feed pump 6.0 install with flash distillation feed flow back-steam separator 5.0 below.
Described inverse Carnot cycle flash liquid pump type system 2, comprises by worst cold case module condenses machine 1.0; Discharge line oil separator 2.0; Condenser shell side working medium side 3.1, condenser tube side side medium 3.2; Working medium circulation choke valve 4.0, working medium filter 4.1; Separator flash distillation feed flow oil back chamber 5.1, separator back-steam liquid vapour disengagement chamber 5.2; Working medium circulation solution feed pump 6.0, maintenance valve 6A, maintenance valve 6B; Evaporimeter tube side working medium side 7.1, evaporimeter shell side side medium 7.2; Low-temperature frozen machine deicing device 8.0 is formed.
Described worst cold case module condenses machine 1.0 exhaust outlet valve P is connected with discharge line oil separator 2.0 air inlet H1 by pipeline; Discharge line oil separator 2.0 gas outlet H2 is connected with condenser shell side working medium side 3.1 air inlet by pipeline; Discharge line oil separator 2.0 oil-out H3 is connected with worst cold case module condenses machine 1.0 oil return valve ZV by valve, magnetic valve Y and pipeline; Discharge line oil separator 2.0 gas outlet H4 inhales vapour collector through low-voltage protection device aeration valve 8.0 with worst cold case module condenses machine 1.0 by pipeline and is connected; Condenser shell side working medium side 3.2 liquid outlet is connected with working medium circulation choke valve 4.0 entrance through working medium filter 4.1, pipeline; Working medium circulation choke valve 4.0 is exported and is connected with separator flash distillation feed flow oil back chamber 5.1 low pressure throttling entrance A by pipeline; Separator flash distillation feed flow oil back chamber 5.1 liquid outlet B is connected with evaporimeter tube side working medium side 7.1 entrance ZA by the road; Evaporimeter tube side working medium side 7.2 is exported ZB and is connected with separator back-steam liquid vapour disengagement chamber 5.2 air intake C by pipeline; Separator flash distillation feed flow oil back chamber 5.1 foam-like multiple spot valve oil return opening E inhales vapour collector by magnetic valve Z and pipeline with worst cold case module condenses machine 1.0 and is connected; Separator back-steam liquid vapour disengagement chamber 5.2 venthole D inhales steam ports valve L by pipeline and worst cold case module condenses machine 1.0 and is connected; Condenser tube side side medium 3.2 hot water outlet QY to be intake with heating demand side by Outer Tube and is connected, and the condenser tube side side medium 3.2 hot water QZ that answers back is connected with heating demand side backwater by Outer Tube; Evaporimeter tube side side medium 7.2 cryogenic media outlet ZY is connected with heat source side heat source tower inlet by Outer Tube, and evaporimeter tube side side medium 7.1 cryogenic media import ZW is connected with heat source side heat source tower liquid outlet by Outer Tube.
Flash distillation working medium pump low heat heat pump operation principle.
Flash distillation working medium pump low heat heat pump is by liquid pump tube side part of appliance composite construction, and inverse Carnot cycle flash liquid pump type system forms.
Described liquid pump tube side part of appliance composite construction 1 principle of work and power, is shown in Fig. 1.
The parallel connection of described tube side working medium circulation evaporimeter 7.0, shell side working fluid condenses device 3.0 increases the stability of top equipment, becomes the support of other equipment, worst cold case module condenses machine 1.0 is multimode configuration, design principle is by-18 DEG C of air themperatures in winter, heat source temperature-23 DEG C of thermal source operating modes configuration compressors (increasing compressor parallel number of units by low heat attenuation) ensure that tube side working medium circulation evaporimeter 7.0 under limit low heat operating mode, shell side working fluid condenses device 3.0 heat exchanger heat exchange area is fully used, entirety decreases the complete machine number of units of source source pump configuration by the numbers, source source pump is by 15 DEG C of thermal source operating mode configuration compressors routinely, at heat source temperature-23 DEG C, run heat capacity about to decay 50--60%, the number of units causing source pump to configure increases more than at least one times, flash distillation feed flow back-steam separator 5.0 flash distillation feed flow oil back chamber 5.1 liquid level line does not receive restriction because adopting working medium circulation solution feed pump 6.0 effectively can reduce flash distillation feed flow back-steam separator 5.0 with tube side working medium circulation evaporimeter 7.0 discrepancy in elevation, adopting working medium circulation solution feed pump 6.0 to realize tube side working medium circulation evaporimeter 7.0 forces current stabilization to conduct heat, and contrast conventional direct expansion dry type vapour-liquid two fluid evaporators can improve the performance of more than 40%, when hot pump in low temp operating mode adopts open type tower heat-obtaining to absorb the clammy thermal source in air, circulating solution concentration is risen by dilution freezing point at any time, cause tube side working medium circulation evaporimeter 7.0 tube side side medium 7.2 circulation solution to freeze heat pump protection to shut down, even if recover solution concentration to be also difficult to melt because circulation solution freezes not circulate, low-temperature frozen machine deicing device 8.0 adopts and carries out electrical heating ice-melt speed soon with heat pump compressor with power configuration, ensure that system failure recovery time shorten more than 95%.
Inverse Carnot cycle flash liquid pump type system 2 system principle, is shown in Fig. 1.
Describedly inhale steam ports valve L from separator back-steam liquid vapour disengagement chamber 5.2 low pressure refrigerant vapor by worst cold case module condenses machine 1.0 and enter, be promoted to high-pressure refrigerant overheated gas through heat pump acting compression to be discharged by worst cold case module condenses machine 1.0 exhaust outlet valve P and enter discharge line oil separator 2.0 by discharge line oil separator 2.0 air inlet H1 and separate lubricating oil, lubricating oil enters worst cold case module condenses machine 1.0 oil return valve ZY complete high pressure oil return process through discharge line oil separator 2.0 oil-out H3 valve, magnetic valve Y.High-pressure refrigerant overheated gas through removing oil vapour enters condenser shell side working medium side 3.1 through discharge line oil separator 2.0 gas outlet H2, import and export QY/QZ circulatory mediator release high-temperature position heat energy to load side heat supply to condenser tube side side medium 3.2, be condensed into high pressure refrigerant liquid and enter working medium circulation choke valve 4.0 through working medium filter 4.1.High pressure refrigerant liquid is expanded to low pressure refrigerant vapour-liquid two fluids through working medium circulation choke valve 4.0 and enters separator flash distillation feed flow oil back chamber 5.1 entrance A and enter separator flash distillation feed flow oil back chamber, evaporate flash gas be cooled to cold-producing medium subcooled liquid and isolate fluid foams, liquid enters evaporimeter tube side working medium side 7.1 entrance ZA through separator flash distillation feed flow oil back chamber 5.1 liquid outlet B, low pressure refrigerant subcooled liquid absorbs through evaporimeter tube side working medium side 7.1 to be imported and exported from evaporimeter tube side side medium 7.2 low level heat source that ZW/ZY circulatory mediator carries and is evaporated to refrigerant liquid vapour fluid-mixing, enter separator flash distillation feed flow oil back chamber 5.1 by separator back-steam liquid vapour disengagement chamber 5.2 air intake C and separate liquid, liquid enters evaporimeter tube side working medium side 7.1 circulating and evaporating by working medium circulation solution feed pump 6.0 loaded energy, the fluid foams that separator flash distillation feed flow oil back chamber 5.1 produces, through foam-like multiple spot valve oil return opening E, rely on siphon to enter worst cold case module condenses machine 1.0 and inhale vapour collector and complete low pressure oil return process under magnetic valve Z tapping mode, export ZB wet steam body from evaporimeter tube side working medium side 7.1 to enter separator flash distillation feed flow oil back chamber 5.1 and remove moist steam through filtering layer S and enter separator back-steam liquid vapour disengagement chamber 5.2 and export D and enter worst cold case module condenses machine 1.0 and inhale the inverse Carnot cycle that steam ports collector completes refrigeration working medium.
Claims (3)
1. flash distillation working medium pump low heat heat pump, it comprises by liquid pump tube side part of appliance composite construction, and inverse Carnot cycle flash liquid pump type system composition, is characterized in that: liquid pump tube side part of appliance composite construction, inverse Carnot cycle flash liquid pump type system.
2. flash distillation working medium pump low heat heat pump according to claim 1; described liquid pump tube side part of appliance composite construction; it is characterized in that: by worst cold case module condenses machine, discharge line oil separator, shell side working fluid condenses device; working medium circulation choke valve; flash distillation feed flow back-steam separator, working medium circulation solution feed pump, tube side working medium circulation evaporimeter; low-voltage protection device aeration valve, low-temperature frozen machine deicing device forms.
3. flash distillation working medium pump low heat heat pump according to claim 1, described inverse Carnot cycle flash liquid pump type system, it is characterized in that: by worst cold case module condenses machine, discharge line oil separator, condenser shell side working medium side, condenser tube side side medium, working medium circulation choke valve, working medium filter, separator flash distillation feed flow oil back chamber, separator back-steam liquid vapour disengagement chamber, working medium circulation solution feed pump, maintenance valve 6A, maintenance valve 6B, evaporimeter tube side working medium side, evaporimeter shell side side medium, low-temperature frozen machine deicing device forms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410343716.1A CN105258391A (en) | 2014-07-19 | 2014-07-19 | Flash evaporation working medium pump type low-heat-source heat pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410343716.1A CN105258391A (en) | 2014-07-19 | 2014-07-19 | Flash evaporation working medium pump type low-heat-source heat pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737127A (en) * | 2016-03-28 | 2016-07-06 | 侴乔力 | Water vapor preparer |
| CN112225274A (en) * | 2020-10-26 | 2021-01-15 | 清华大学 | Circulating evaporation cooling water purification system |
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| CN103499164A (en) * | 2013-08-12 | 2014-01-08 | 刘秋克 | Haze wet heat source heat pump water-cooling all-in-one machine |
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| CN2374820Y (en) * | 1999-04-19 | 2000-04-19 | 吴植仁 | Dripping dry type evaporimeter |
| CN2445259Y (en) * | 2000-10-10 | 2001-08-29 | 清华同方股份有限公司 | Water source heat pump with high-efficient heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737127A (en) * | 2016-03-28 | 2016-07-06 | 侴乔力 | Water vapor preparer |
| CN112225274A (en) * | 2020-10-26 | 2021-01-15 | 清华大学 | Circulating evaporation cooling water purification system |
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Address after: 266300 Qingdao Research Institute, Huaihe Road, Jiaozhou economic and Technological Development Zone, Shandong 437, China Applicant after: Liu Qiuke Address before: 410007 Hunan province Changsha Yuhua District of Shaoshan City Road No. 489 Huambo Mingdi 3 room 1805 Applicant before: Liu Qiuke |
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Application publication date: 20160120 |