CN102755760A - Freezing-based solution regeneration method and device - Google Patents
Freezing-based solution regeneration method and device Download PDFInfo
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- CN102755760A CN102755760A CN2012102466238A CN201210246623A CN102755760A CN 102755760 A CN102755760 A CN 102755760A CN 2012102466238 A CN2012102466238 A CN 2012102466238A CN 201210246623 A CN201210246623 A CN 201210246623A CN 102755760 A CN102755760 A CN 102755760A
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Abstract
The invention provides a freezing-based solution regeneration method and device, and belongs to the field of refrigeration and air-conditioning equipment. The scheme of the invention is as follows: partial water in a dilute solution with proper concentration is iced and separated out by utilizing the cold capacity of a refrigeration and air-conditioning system so as to obtain a concentrated solution; the dilute solution with proper concentration is transferred into a heat insulating housing to perform heat exchange with an evaporator, thus partial water in the dilute solution is iced, and the solution containing ice is introduced into an ice-solution separating device for separation, so as to obtain a regenerated concentrated solution; and the regenerated concentrated solution is conveyed outside. The device can be applied to equipment which needs a solution and has no solution regeneration function, such as a solution spraying type heat pump and a heat source tower, thus the solution spraying type heat pump, the heat source tower and the like can continuously run without high-capacity dilute solution storage tanks.
Description
Technical field
The present invention relates to a kind ofly, belong to the refrigeration air-conditioner field based on solution regeneration method that freezes and device.The weak solution of debita spissitudo gets into and contains in the lagging casing of refrigeration system evaporator; The cold that utilizes refrigeration system to provide separates the water in the weak solution and separates out after the glaciation in the solution regeneration unit of low temperature, thereby see off after making weak solution become concentrated solution again.
Background technology
The energy has become the key factor of restriction economic development; Raising along with rapid economy development and living standards of the people; Air-conditioning has become necessity in the people life, has become the rich and influential family of building energy consumption, and in the energy resource consumption total amount, occupies very big share.
At present; The solution refrigeration air-conditioner has become a kind of novel refrigeration air-conditioner mode; In order to utilize solution to guarantee heat-obtaining and low temperature frost-free from air; Solution spraying type refrigeration air-conditioner has been applied in the systems such as solution spraying type source pump, thermal source tower widely, with the function that guarantees system with efficient.But these units are in the process of using, and solution is along with the increase of running time, and concentration is thinning gradually, in order not influence the operation of system, need regenerate to solution.
Need in the unit of solution regeneration, except there was the regenerative device of solution of self in a little solution dehumidification unit, the weak solution after present most of units will use was stored in the NaOH solution tank NaOH, waited until summer or regenerated separately more At All Other Times.So, unit needs that the solution amount of adapted is huge, NaOH solution tank NaOH is bulky, causes the waste of resource and investment.
Therefore, in order to solve the difficult problem of solution regeneration, this patent provides a kind of independent solution regeneration method and devices that are used for all kinds of need solution regeneration units that attach.
Summary of the invention
The present invention proposes a kind of based on the solution regeneration treating method and the device that freeze; Use kind of refrigeration cycle cold is separated out the moisture freezes Cheng Binghou in the weak solution of debita spissitudo and obtains concentrated solution; Guaranteed the continuous operation of solution air-conditioning equipment; Do not need big capacity solution storage tank, the solution use amount reduces.
The present invention proposes following technical scheme:
A kind of based on the solution regeneration method that freezes; It is characterized in that: this method utilizes the cold in the cooling cycle system to make the part water freezing in the weak solution of desire regeneration separate out the back and obtain concentrated solution; Said cooling cycle system is to be formed by connecting containing evaporimeter, compressor, condenser and throttling arrangement, and described evaporimeter is arranged in the lagging casing; The concrete steps of this method are following:
The weak solution of 1) desire being regenerated is sent in the lagging casing and is carried out heat exchange with evaporimeter, and the part moisture in the weak solution is frozen, and forms the solution that contains ice;
The solution that 2) will contain ice is introduced in the ice-solution separating device and is separated the concentrated solution after obtaining regenerating.
Provided by the invention a kind of based on the regenerative device of solution that freezes, it is characterized in that: this regenerative device of solution comprises ice-solution separating device, solution pump, reservoir and the cooling cycle system of being made up of evaporimeter, compressor, condenser and throttling arrangement; Described evaporimeter is arranged in the lagging casing; Described ice-solution separating device is arranged on the outside of lagging casing; The inlet of solution pump links to each other with the below of ice-solution separating device, and the solution pump outlet links to each other with the concentrated solution drain pipe; The weak solution feed tube feeds in the lagging casing; Said condenser is arranged in the reservoir, and the ice outlet of ice-solution separating device links to each other with reservoir, on reservoir, is provided with overflow pipe.
Another kind provided by the invention is characterized in that based on the regenerative device of solution that freezes: this regenerative device of solution comprises ice-solution separating device, solution pump and the cooling cycle system of being made up of evaporimeter, compressor, condenser and throttling arrangement; Described evaporimeter is arranged in the lagging casing; Described ice-solution separating device is arranged on the outside of lagging casing; The inlet of solution pump links to each other with the bottom of ice-solution separating device, and the solution pump outlet links to each other with the concentrated solution drain pipe through behind the condenser; The weak solution feed tube feeds in the lagging casing.
In above-mentioned two kinds of technical schemes, described lagging casing is vertical or horizontal type structure; Can be provided with in the lagging casing and scrape ice device or agitator; Described lagging casing and ice-solution separating device is whole the setting or separately independent the setting.
Described ice-solution separating device adopts gravitational separation device or filter screen.
Adopt technique scheme to have the following advantages and the high-lighting effect:
1. owing to used the solution regenerating treater, not only guarantee the continuous use of each unit, and reduced to use the solution dosage of solution unit and the size of NaOH solution tank NaOH, reduced the investment and the occupation of land of unit.
2. the present invention is an independently regenerative device of solution, can add to be used in various needs and to carry out in the unit of solution regeneration, conveniently uses and installs.
3. the regeneration scheme that is different from heated solution only need provide the quantity of melting heat to become and can regenerate in theory, and required energy consumption is little, and the operation of heat pump operating mode is suitable, and regeneration efficiency is high.
4. a kind of regenerative device of solution that proposes according to claim 2 is applicable to the area that temperature is lower, and the airborne water capacity in this area is low, and condensate flow is less, and the ice-out Cheng Shuihou that makes discharges easily, and is less to the effectiveness affects of whole heat pump.
5. a kind of regenerative device of solution that proposes according to claim 3 is applicable to the area that temperature is higher; The airborne water capacity in this area is high; Condensate flow is big, and the ice of making melts and is placed on outdoorly, is not easy to freeze to be the iceberg; When temperature is higher, can also melt automatically and be water, so the heat pump efficiency after this scheme is adopted in the higher area of temperature is high.
Description of drawings
Fig. 1 is that the present invention provides a kind of principle flow chart based on the solution regeneration method that freezes.
Fig. 2 is the structure principle chart of a kind of first embodiment based on the regenerative device of solution that freezes provided by the invention.
Fig. 3 is the structure principle chart of a kind of second embodiment based on the regenerative device of solution that freezes provided by the invention.
Wherein: the 1-evaporimeter; The 2-compressor; The 3-condenser; The 4-throttling arrangement; The 5-lagging casing; 6-ice-solution separating device; 7-weak solution feed tube; 8-concentrated solution drain pipe; The 9-solution pump; The 10-reservoir; The 11-overflow pipe; 12-ice.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the structure of the present invention and the method for operation are further specified.
Provided by the invention based on the solution regeneration method that freezes, this method is to utilize cold in the cooling cycle system to make the part water freezing in the weak solution of desire regeneration separate out the back and obtain concentrated solution, and described weak solution is meant the solution that is lower than eutectic point concentration.Said cooling cycle system is to be formed by connecting containing evaporimeter 1, compressor 2, condenser 3 and throttling arrangement 4, and described evaporimeter is arranged in the lagging casing 5; The concrete steps of this method are following: the weak solution of desire regeneration is sent in the lagging casing 5 carried out heat exchange with evaporimeter 1, the part moisture in the weak solution is frozen, form the solution that contains ice; And then the solution that will contain ice is introduced in the ice-solution separating device 6 and is separated the concentrated solution after obtaining regenerating.
Described lagging casing can adopt vertical or horizontal type structure; Can be provided with in the lagging casing and scrape ice device or agitator; Described lagging casing and ice-solution separating device is whole the setting or separately independent the setting.Described ice-solution separating device adopts gravitational separation device or filter screen.
Embodiment one:
Fig. 2 is the structure principle chart of a kind of first embodiment based on the regenerative device of solution that freezes provided by the invention.This regenerative device of solution comprises ice-solution separating device 6, solution pump 9, reservoir 10 and the cooling cycle system of being made up of evaporimeter 1, compressor 2, condenser 3 and throttling arrangement 4; Described evaporimeter 1 is arranged in the lagging casing 5; Described ice-solution separating device 6 is arranged on the outside of lagging casing 5; The inlet of solution pump 9 links to each other with the below of ice-solution separating device 6, and the solution pump outlet links to each other with concentrated solution drain pipe 8; Weak solution feed tube 7 feeds in the lagging casing 5; Said condenser 3 is arranged in the reservoir 10, and the outlet of the ice of ice-solution separating device 6 links to each other with reservoir 10, on reservoir, is provided with overflow pipe 11.
When solution need be regenerated, compressor and starting 2 and solution pump 9, weak solution gets into regenerating unit via weak solution feed tube 7; Part water is after freezing under the effect of evaporimeter 1 in the weak solution; Solution and ice are incorporated in ice-solution separating device 6, deliver to reservoir 10 through the ice after separating, condenser 3 heating reservoirs 10; Ice-out, unnecessary water is discharged via overflow pipe 11; Solution after the separate ice becomes concentrated solution, via solution pump 9 to concentrated solution drain pipe 8.
Embodiment two
Fig. 3 is the structure principle chart of a kind of second embodiment based on the regenerative device of solution that freezes provided by the invention.This regenerative device of solution comprises ice-solution separating device 6, solution pump 9 and the cooling cycle system of being made up of evaporimeter 1, compressor 2, condenser 3 and throttling arrangement 4; Described evaporimeter 1 is arranged in the lagging casing 5; Described ice-solution separating device 6 is arranged on the outside of lagging casing 5; The inlet of solution pump 9 links to each other with the bottom of ice-solution separating device 6, and the solution pump outlet links to each other with concentrated solution drain pipe 8 through condenser 3 backs; Weak solution feed tube 7 feeds in the lagging casing 5.
It is different from embodiment one and is characterised in that: solution pump 9 links to each other with concentrated solution drain pipe 8 through condenser 3 backs, has utilized the condensation heat of heat pump, and direct discharger does not have the reservoir among the embodiment one after ice and the solution separating.
When solution need be regenerated; Compressor and starting 2 and solution pump 9, weak solution gets into regenerating unit via weak solution feed tube 7, and part water is after freezing under the effect of evaporimeter 1 in the weak solution; Solution is introduced in the ice-solution separating device 6 with ice, directly discharges through the ice after separating; Solution after the separate ice becomes concentrated solution, behind solution pump 9 to condenser 3, sees off through concentrated solution drain pipe 8 again.
Claims (7)
1. one kind based on the solution regeneration method that freezes; It is characterized in that: this method utilizes the cold in the cooling cycle system to make the part water freezing in the weak solution of desire regeneration separate out the back and obtain concentrated solution; Said cooling cycle system is to be formed by connecting containing evaporimeter (1), compressor (2), condenser (3) and throttling arrangement (4), and described evaporimeter is arranged in the lagging casing (5); The concrete steps of this method are following:
The weak solution of 1) desire being regenerated is sent in the lagging casing (5) and is carried out heat exchange with evaporimeter (1), and the part moisture in the weak solution is frozen, and forms the solution that contains ice;
The solution that 2) will contain ice is introduced in the ice-solution separating device (6) and is separated the concentrated solution after obtaining regenerating.
One kind realize method according to claim 1 based on the regenerative device of solution that freezes; It is characterized in that: this regenerative device of solution comprises ice-solution separating device (6); Solution pump (9), reservoir (10) and the cooling cycle system of forming by evaporimeter (1), compressor (2), condenser (3) and throttling arrangement (4); Described evaporimeter (1) is arranged in the lagging casing (5); Described ice-solution separating device (6) is arranged on the outside of lagging casing (5); The inlet of solution pump (9) links to each other with the below of ice-solution separating device (6), and the solution pump outlet links to each other with concentrated solution drain pipe (8); Weak solution feed tube (7) feeds in the lagging casing (5); Said condenser (3) is arranged in the reservoir (10), and the outlet of the ice of ice-solution separating device (6) links to each other with reservoir (10), on reservoir, is provided with overflow pipe (11).
One kind realize method according to claim 1 based on the regenerative device of solution that freezes; It is characterized in that: this regenerative device of solution comprises ice-solution separating device (6), solution pump (9) and the cooling cycle system of being made up of evaporimeter (1), compressor (2), condenser (3) and throttling arrangement (4); Described evaporimeter (1) is arranged in the lagging casing (5); Described ice-solution separating device (6) is arranged on the outside of lagging casing (5); The inlet of solution pump (9) links to each other with the bottom of ice-solution separating device (6), and the solution pump outlet links to each other with concentrated solution drain pipe (8) through condenser (3) back; Weak solution feed tube (7) feeds in the lagging casing (5).
4. according to claim 2 or 3 described based on the regenerative device of solution that freezes, it is characterized in that: described lagging casing (5) is vertical or horizontal type structure.
5. according to claim 4 based on the regenerative device of solution that freezes, it is characterized in that: be provided with in the described lagging casing (5) and scrape ice device or agitator.
6. according to claim 2 or 3 described based on the regenerative device of solution that freezes, it is characterized in that: described ice-solution separating device (6) adopts gravitational separation device or filter screen.
7. according to claim 2 or 3 described based on the regenerative device of solution that freezes, it is characterized in that: described lagging casing (5) and ice-solution separating device (6) are provided with or separately independent the setting for whole.
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| CN2012102466238A CN102755760A (en) | 2012-07-16 | 2012-07-16 | Freezing-based solution regeneration method and device |
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| CN2012102466238A CN102755760A (en) | 2012-07-16 | 2012-07-16 | Freezing-based solution regeneration method and device |
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| CN102755760A true CN102755760A (en) | 2012-10-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061615B (en) * | 2014-07-07 | 2017-03-08 | 湖南科技大学 | A kind of open type heat source tower anti-icing fluid concentrates temperature elevation system |
| CN109357437A (en) * | 2018-10-12 | 2019-02-19 | 南京工程学院 | A kind of heat source tower heat pump solution regeneration system based on freezing |
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| JP2001009244A (en) * | 1999-06-28 | 2001-01-16 | Kansai Electric Power Co Inc:The | Method and device for concentrating brine |
| CN1849937A (en) * | 2006-05-23 | 2006-10-25 | 青岛大学 | Concentration method of graduate freezing interface |
| CN101737996A (en) * | 2008-11-17 | 2010-06-16 | 苏庆泉 | Heat pump circulating system and cooling/heating united supply method |
| CN201555406U (en) * | 2009-12-01 | 2010-08-18 | 上海理工大学 | Vacuum ice making system utilizing media to improve system performance |
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2012
- 2012-07-16 CN CN2012102466238A patent/CN102755760A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001009244A (en) * | 1999-06-28 | 2001-01-16 | Kansai Electric Power Co Inc:The | Method and device for concentrating brine |
| CN1849937A (en) * | 2006-05-23 | 2006-10-25 | 青岛大学 | Concentration method of graduate freezing interface |
| CN101737996A (en) * | 2008-11-17 | 2010-06-16 | 苏庆泉 | Heat pump circulating system and cooling/heating united supply method |
| CN201555406U (en) * | 2009-12-01 | 2010-08-18 | 上海理工大学 | Vacuum ice making system utilizing media to improve system performance |
Non-Patent Citations (1)
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| F. VAN DER HAM ET AL.: "Eutectic freeze crystallization: Application to process streams and waste water purification", 《CHEMICAL ENGINEERING AND PROCESSING》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061615B (en) * | 2014-07-07 | 2017-03-08 | 湖南科技大学 | A kind of open type heat source tower anti-icing fluid concentrates temperature elevation system |
| CN109357437A (en) * | 2018-10-12 | 2019-02-19 | 南京工程学院 | A kind of heat source tower heat pump solution regeneration system based on freezing |
| CN109357437B (en) * | 2018-10-12 | 2023-09-22 | 南京工程学院 | Heat source tower heat pump solution regeneration system based on freezing method |
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Application publication date: 20121031 |