CN102679468B - Regeneration system of dehumidifying solution for moist air - Google Patents
Regeneration system of dehumidifying solution for moist air Download PDFInfo
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- CN102679468B CN102679468B CN201210000917.2A CN201210000917A CN102679468B CN 102679468 B CN102679468 B CN 102679468B CN 201210000917 A CN201210000917 A CN 201210000917A CN 102679468 B CN102679468 B CN 102679468B
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Abstract
The invention relates to a regeneration system of a dehumidifying solution for moist air, wherein a generator is internally provided with a heating coil and a condensing coil, and the condensing coil is in a condensing disc provided with a condensate outlet. A liquid outlet of a dilute solution storage tank is connected with a liquid inlet of the generator, and a liquid outlet of the generator is connected with an inlet of a solution heat exchange tube through a solution pump. An outlet of the solution heat exchange tube is divided into two paths, and one solution heat exchange tube is connected with a dehumidifying device through a flow adjusting valve while the other solution heat exchange tube is connected with a work liquid inlet of an ejector. A driven fluid inlet of the ejector is communicated with a gas outlet of the generator and an outlet of the ejector is connected with a liquid inlet of the dehumidifying device after being joined with an outlet of the flow adjusting valve. An outlet of the heating coil is connected with an inlet of a heater, an outlet of the heater is connected with a vapor-liquid separator through a bubble pump, a gas outlet of the vapor-liquid separator is connected with an inlet of the heating coil, and a liquid outlet of the vapor-liquid separator is connected with the inlet of the heater after being joined with the outlet of the heating coil.
Description
Technical field
The regenerative system that the present invention relates to a kind of dehumidification solution dehumidifying for humid air, belongs to humid air dehumidifying technology field.
Background technology
Use at present more solution dehumidification agent to have LiBr, LiCl and CaCl
2deng solution, and use CaCl
2it is fewer that solution dehumidifies separately.Utilize the solution that hygroscopicity is stronger to dehumidify, regeneration is a key problem of this technology.The dehumidifying of solution moisture removing device and regeneration of waste liquor efficiency are research emphasis always, utilize waste heat to have energy-saving significance as regeneration of waste liquor thermal source, such as, the air-conditioning unit condensation heat of utilizing is as the thermal source of regeneration of waste liquor, publication number CN101140089 patent of invention description provides a kind of humiture independence control air conditioner system, this system reclaims net for air-source heat pump units condenser heat dissipation capacity, as the heat of regeneration of waste liquor, realizes the regeneration of dehumidification solution; In addition, also can consider the regenerative resource such as solar energy, underground heat or other used heat time as solution regeneration thermal source, as publication number CN201083422 patent of invention provides a kind of industrial exhaust heat interior heat type solution dehumidifying regenerator, thereby save to greatest extent energy consumption.Wherein solar energy is used as actified solution thermal source widely, as new type solar energy slot type and flat combine heat-collecting solution economic benefits and social benefits regeneration mode, adopt slot type thermal-collecting tube and vapour liquid separator to realize boiling type regeneration of waste liquor, and recycle a part of thermal source supply that its steam-condensation hotwork is Flat plate heat collecting regenerating unit, realize non-boiling formula regeneration of waste liquor.With it similar also have solar groove type heat collector to combine with gas fired-boiler to drive realize the dual effect type solution regeneration system that the regeneration of explosive evaporation formula and non-boiling vaporation-type are regenerated.In addition, with respect to the heat insulation-type dehumidifier of traditional constant-enthalpy process, people pay close attention to the internally cooled dehumidifier of constant temperature process more, as interior cold-Nei pattern of fever solution dehumidification-regenerating unit; Utilize mixed solution to substitute independent solution, thereby improve moisture absorption and the regenerability of dehumidification solution.
But, no matter adopt which kind of method to improve dehumidifying and the regeneration efficiency of dehumidifier, regeneration of waste liquor temperature is the key factor that affects regeneration of waste liquor all the time, and the regeneration temperature of solution moisture removing device is generally at 70～80 DEG C, in the time that the temperature of regeneration thermal source exceedes 100 DEG C, regeneration efficiency exceedes 55%; But when heat source temperature is during lower than 50 DEG C, regeneration of waste liquor is very difficult even can not be realized, but the higher required energy of temperature just more, and this just makes solution regeneration system relatively high to the requirement of thermal source.
Summary of the invention
The object of the present invention is to provide a kind of humid air dehumidification solution regenerative system with lower regeneration of waste liquor temperature.
For achieving the above object, the present invention adopts following technical scheme: a kind of humid air dehumidification solution regenerative system, comprise generator and weak solution storage tank, in weak solution storage tank, be provided with solution heat exchanger tube, in generator, be provided with the heat(ing) coil in bottom and the solidifying water coil in top, solidifying water coil is in the solidifying water pond being fixedly installed in generator, on solidifying water pond, be provided with the solidifying water outlet for solidifying water being discharged to generator, the inlet of weak solution storage tank is for being connected with the liquid outlet of dehydrating unit, the liquid outlet of weak solution storage tank is connected with the inlet of generator, the liquid outlet of generator is connected with the import of solution heat exchanger tube through solution pump, the outlet of solution heat exchanger tube is divided into two-way, wherein a road is used for being connected with the inlet of dehydrating unit through flow control valve, another road is connected with the hydraulic fluid import of injector, the driven fluid import of injector is communicated with the gas vent of generator, after converging with the outlet of flow control valve, the outlet of injector is connected with the inlet of dehydrating unit, heat(ing) coil outlet is connected with the import of heater, the outlet of heater is connected with vapour liquid separator through airlift pump, the gas outlet of vapour liquid separator is connected with the import of heat(ing) coil, after converging with the outlet of heat(ing) coil, the liquid outlet of vapour liquid separator is connected with the import of heater.
Between described injector and flow control valve and solution heat exchanger tube, be provided with the first check valve, the import of the first check valve is connected with the outlet of solution heat exchanger tube, and the outlet of the first check valve is connected with the workflow import of injector and the import of flow control valve respectively.
Between the driven fluid import of the gas vent of described generator and injector, be provided with the second check valve, the import of the second check valve is connected with the gas vent of generator, and the outlet of the second check valve is connected with the driven fluid import of injector.
Between the described liquid outlet of weak solution storage tank and the inlet of generator, be provided with the first switching control pilot.
On described solidifying water outlet, be communicated with and be provided with condensate water holding vessel, be communicated with the condensate pump being provided with for the condensate water in condensate water holding vessel is discharged on the delivery port on condensate water holding vessel, the exit of condensate pump is provided with second switch control valve.
The position of described solidifying water outlet is higher than the import of condensate water holding vessel.
The position of the liquid outlet of described weak solution storage tank is higher than the inlet of generator.
Working medium in the heating system that the present invention consists of for heat(ing) coil and vapour liquid separator and heater airlift pump thermosyphon action provides circulation power, save the required working medium circulating pump of legacy system, utilize the solution in steam phase transforming heating generator, save heat(ing) coil heat exchange area; By the incoagulable gas in injector injection generator, the pressure in maintenance generator is lower than atmospheric pressure.By creating vacuum condition in the internal system of generator and solution heat exchanger tube composition, to reduce regeneration of waste liquor temperature in generator, save the energy.Utilize and solution heat exchanger tube is set in weak solution storage tank and internal system that two-phase flow injector maintains regeneration of waste liquor unit is set to vacuum requirement in the outlet of solution heat exchanger tube.
The present invention deposits dehumidification solution by being provided with concentrated solution storage tank, thereby solves the problem that dehydrating unit cannot continuous operation in the time that the low-grade energies such as sunshine are inadequate.The more traditional solution regeneration system of regeneration of waste liquor temperature of solution regeneration system provided by the present invention reduces by 20 DEG C～50 DEG C, significantly improve dehumidification solution regeneration efficiency, realize the low-grade energies such as solar energy and efficiently utilize, system run all right is reliable, energy-saving effect is obvious, has a extensive future.
Brief description of the drawings
Fig. 1 is the structure principle chart of the embodiment of the present invention.
Detailed description of the invention
A kind of embodiment of humid air dehumidification solution regenerative system, in Fig. 1, in the weak solution storage tank 3 of this humid air dehumidification solution regenerative system, be provided with solution heat exchanger tube 13, in generator 1, be provided with heat(ing) coil 10 and solidifying water coil 12, the bottom of heat(ing) coil 10 in generator 1, the top of solidifying water coil 12 in generator 1.In generator 1, be also fixedly installed solidifying water pond 19, solidifying water coil 12 is in solidifying water pond 19, on solidifying water pond 19, be provided with solidifying water outlet, on solidifying water outlet, be communicated with and be provided with condensate water holding vessel 6, the outlet of condensate water holding vessel 6 is connected with the import of condensate pump 11, and the outlet of condensate pump 11 is discharged condensate water through second switch control valve 18.The inlet of weak solution storage tank 3 is for being connected with the liquid outlet of dehydrating unit, the liquid outlet of weak solution storage tank 3 is connected with the import of the first switching control pilot 14, the outlet of the first switching control pilot 14 is connected with the inlet of generator 1, the liquid outlet of generator 1 is connected with the import of solution pump 2, the outlet of solution pump 2 is connected with the import of solution heat exchanger tube 13, the outlet of solution heat exchanger tube 13 is connected with the import of the first check valve 15, the outlet of the first check valve 15 is divided into two-way, wherein a road is connected with the import of flow control valve 17, the outlet of flow control valve 17 is connected with the import of concentrated solution storage tank 5, the outlet of concentrated solution storage tank 5 is for being connected with the inlet of dehydrating unit, another road is connected with the hydraulic fluid import of injector 4, the driven fluid import of injector 4 is connected with the outlet of the second check valve 16, the import of the second check valve 16 is communicated with the gas vent of generator 1, after converging with the outlet of flow control valve 17, the outlet of injector 4 is connected with the import of concentrated solution storage tank 5.Heat(ing) coil 10 exports with the import of heater 7 and is connected, the outlet of heater 7 is connected with vapour liquid separator 9 through airlift pump 8, the gas outlet of vapour liquid separator 9 is connected with the import of heat(ing) coil 10, after the liquid outlet of vapour liquid separator 9 converges with the outlet of heat(ing) coil 10, is connected with the import of heater 7.
The position of solidifying water outlet is higher than the import of condensate water holding vessel 6.
The position of the liquid outlet of weak solution storage tank 3 is higher than the inlet of generator 1.
In the present embodiment, be provided with condensate water holding vessel and in order to discharge the condensate pump of the condensate water in condensate water holding vessel, condensate water holding vessel also can be set, directly will coagulate water and discharge outside generator.
In the present embodiment, be provided with the first check valve and the second check valve, these two check valves can prevent that air from pouring in down a chimney the system of entering, and when system is always when the state in continuous operation, these two check valves also can be set.
Dependence gravity in the present embodiment makes the solution in weak solution storage tank enter generator, and utilizes gravity that condensate water is flowed in condensate water holding vessel, also can not utilize gravity here and installs other power set additional.
In the time of work, the absolute operating pressure of the internal system of humid air dehumidification solution is within the scope of 0kPa～101kPa, in the time that humid air dehumidification solution regeneration unit is started working, the first switching control pilot 14 is opened, the interior weak solution of weak solution storage tank 3 relies on Action of Gravity Field to flow into generator 1, being coagulated water coil 12 through the heat(ing) coil 10 heating steam that produce is condensed into condensed water and enters and coagulate water pond 19, condensate water in solidifying water pond 19 flows under the influence of gravity in condensate water holding vessel 6 and stores, condensate water in condensate water holding vessel 6 is regularly discharged by condensate pump 11, the concentrated solution of the temperature becoming after heat(ing) coil 10 heating evaporations between 40 DEG C～100 DEG C sent into the weak solution in solution heat exchanger tube 13 preheating weak solution storage tanks 3 by solution pump 2, and the heat effect that utilizes solution heat exchanger tube 13 is discharged the contained air of weak solution and other incoagulable gas in weak solution storage tank 3, the concentrated solution that solution heat exchanger tube 13 exports is divided into two, one directly enters concentrated solution storage tank 5 and is stored, liquid inventory size is regulated by flow control valve 17, another concentrated solution enters the existing air in the middle and lower part requirement to vacuum with maintenance generator 1 inside in injector 4 injection generators 1 as working fluid, the gas-liquid mixture that injector 4 exports enters concentrated solution storage tank 5 and is stored, in the time that humid air dehumidification solution regeneration unit quits work, utilize the first check valve 15 and the second check valve 16 to prevent that air from pouring in down a chimney the system of entering.
The interior working medium of heater 7 that low-grade heat drives is heated to 40～100 DEG C, local boiling becomes gas-liquid mixture, enter steam bubble pump 8, utilize gas-liquid mixture in interior the produced driving force of steam bubble pump 8, gas-liquid mixture to be promoted and delivers to vapour liquid separator 9, gas-fluid two-phase mixture is in interior gas phase and the liquid phase separation of realizing of vapour liquid separator 9, the steam of separating flows into heat(ing) coil 10 and adds heat for generator provides, the steam generation phase transformation of heat(ing) coil 10 condenses into liquid, the liquid that heat(ing) coil 10 exports relies on gravity to flow from top to bottom, the liquid flowing out with vapour liquid separator 9 converges inflow low-grade heat heater 7.
In the present embodiment, dehumidification solution is lithium bromide water solution, water lithium chloride solution or calcium chloride water, can be also the saline solution of other metallic compounds.
Claims (8)
1. a humid air dehumidification solution regenerative system, it is characterized in that: comprise generator and weak solution storage tank, in weak solution storage tank, be provided with solution heat exchanger tube, in generator, be provided with the heat(ing) coil in bottom and the solidifying water coil in top, solidifying water coil is in the solidifying water pond being fixedly installed in generator, on solidifying water pond, be provided with the solidifying water outlet for solidifying water being discharged to generator, the inlet of weak solution storage tank is for being connected with the liquid outlet of dehydrating unit, the liquid outlet of weak solution storage tank is connected with the inlet of generator, the liquid outlet of generator is connected with the import of solution heat exchanger tube through solution pump, the outlet of solution heat exchanger tube is divided into two-way, wherein a road is used for being connected with the inlet of dehydrating unit through flow control valve, another road is connected with the hydraulic fluid import of injector, the driven fluid import of injector is communicated with the gas vent of generator, after the outlet of injector converges with the outlet of flow control valve for being connected with the inlet of dehydrating unit, heat(ing) coil outlet is connected with the import of heater, the outlet of heater is connected with vapour liquid separator through airlift pump, the gas outlet of vapour liquid separator is connected with the import of heat(ing) coil, after converging with the outlet of heat(ing) coil, the liquid outlet of vapour liquid separator is connected with the import of heater.
2. humid air dehumidification solution regenerative system according to claim 1, it is characterized in that: between described injector and flow control valve and solution heat exchanger tube, be provided with the first check valve, the import of the first check valve is connected with the outlet of solution heat exchanger tube, and the outlet of the first check valve is connected with the workflow import of injector and the import of flow control valve respectively.
3. humid air dehumidification solution regenerative system according to claim 2, it is characterized in that: between the driven fluid import of the gas vent of described generator and injector, be provided with the second check valve, the import of the second check valve is connected with the gas vent of generator, and the outlet of the second check valve is connected with the driven fluid import of injector.
4. according to the humid air dehumidification solution regenerative system described in claim 1 or 2 or 3, it is characterized in that: between the described liquid outlet of weak solution storage tank and the inlet of generator, be provided with the first switching control pilot.
5. humid air dehumidification solution regenerative system according to claim 4, it is characterized in that: on described solidifying water outlet, be communicated with and be provided with condensate water holding vessel, on delivery port on condensate water holding vessel, be communicated with the condensate pump being provided with for the condensate water in condensate water holding vessel is discharged, the exit of condensate pump is provided with second switch control valve.
6. humid air dehumidification solution regenerative system according to claim 5, is characterized in that: the position of described solidifying water outlet is higher than the import of condensate water holding vessel.
7. humid air dehumidification solution regenerative system according to claim 1, is characterized in that: the position of the liquid outlet of described weak solution storage tank is higher than the inlet of generator.
8. humid air dehumidification solution regenerative system according to claim 1, it is characterized in that: the outlet of described injector converges afterwards and is connected with the inlet of dehydrating unit by concentrated solution storage tank with the outlet of flow control valve, the import of concentrated solution storage tank is connected with the outlet of injector and the outlet of flow control valve respectively, and the outlet of concentrated solution storage tank is for being connected with the inlet of dehydrating unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210000917.2A CN102679468B (en) | 2012-01-04 | 2012-01-04 | Regeneration system of dehumidifying solution for moist air |
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| CN201210000917.2A CN102679468B (en) | 2012-01-04 | 2012-01-04 | Regeneration system of dehumidifying solution for moist air |
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| CN102679468A CN102679468A (en) | 2012-09-19 |
| CN102679468B true CN102679468B (en) | 2014-07-16 |
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Families Citing this family (5)
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| CN102853485B (en) * | 2012-09-29 | 2015-04-22 | 浙江理工大学 | Boiling type regenerative solution dehumidification system driven by solar energy and ground source energy |
| CN105674452B (en) * | 2016-03-31 | 2018-09-14 | 中国海洋大学 | Air ejection humidification-membrane type combines desiccant cooling system with compression |
| CN107170338B (en) * | 2017-07-18 | 2022-09-06 | 天津商业大学 | Salt solution boiling characteristic test experiment table based on vacuum |
| US10506830B2 (en) | 2017-09-22 | 2019-12-17 | Altria Client Services Llc | Air flow design for an e-vaping cartridge, method of making the e-vaping cartridge, and e-vaping device including the cartridge |
| CN108758875A (en) * | 2018-06-15 | 2018-11-06 | 广东工业大学 | A kind of hygroscopic solution regenerative system |
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2012
- 2012-01-04 CN CN201210000917.2A patent/CN102679468B/en not_active Expired - Fee Related
Patent Citations (8)
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| FR2291457A1 (en) * | 1974-11-15 | 1976-06-11 | Meckler Gershon Ass | AIR CONDITIONING APPARATUS AND METHOD |
| US4860548A (en) * | 1988-06-13 | 1989-08-29 | Ahlstromforetagen Svenska Ab | Air conditioning process and apparatus therefor |
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