CN201711096U - Device for controlling and adjusting concentration of refrigerating medium solution of heat energy-exchanging tower - Google Patents
Device for controlling and adjusting concentration of refrigerating medium solution of heat energy-exchanging tower Download PDFInfo
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- CN201711096U CN201711096U CN2010201333771U CN201020133377U CN201711096U CN 201711096 U CN201711096 U CN 201711096U CN 2010201333771 U CN2010201333771 U CN 2010201333771U CN 201020133377 U CN201020133377 U CN 201020133377U CN 201711096 U CN201711096 U CN 201711096U
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Abstract
The utility model provides a device for controlling and adjusting the concentration of refrigerating medium solution of a heat energy-exchanging tower. A tubular structure which is closely arranged is made from a hollow fiber hydrophobic film; the end face of a film tube which is closely arranged is provided with a sealing layer between the exposed inner side face of the tube and the exposed outer side face of the tube; the inner side face of the film tube is separated from the outer side face of the film tube, i.e., a plurality of cavities in the tube are communicated with each other to form into one side of the film, namely a heating side, and a plurality of cavities outside the tube are communicated with each other to form into the other side of the film, namely a cooling side; the tubular structure which is closely arranged is positioned in a shell; and the shell is provided with an inlet and an outlet which are communicated with the inner side face of the tube, and is further provided with an inlet and an outlet which are communicated with the outer side face of the tube. The device solves the problems that the concentration of the refrigerating medium is reduced and the salt thereof is lost. The device is simple, and is low in running cost. The device can be used for heat energy-exchanging towers of various air source heat pumps.
Description
Technical field
The utility model relates to control of carrier (refrigerating medium) solution concentration and adjusting device.
Background technology
In the today of seeking low-carbon economy, to cold/hot air-conditioning and the hot water system of using in the building, conventional water and the ground source heat pump technology of mostly being, the heat exchange column that adopts Chinese patent ZL200720025071 novel energy tower promptly to adopt low melting point refrigerating medium solution to draw energy in the air provides a kind of air and refrigerating medium to carry out heat exchange, extract the method for tow taste heat in the air, be used to solve the restriction of geology and peripheral water environment, the heat exchange efficiency height, energy-conserving and environment-protective, the unit load is low, energy consumption is little, is not subjected to region limits.But this energy Tower System belongs to the open type tower, it is no problem in running to use in three seasons of spring and summer autumn, but need use low melting point refrigerating medium solution to contact during winter operation with air, when ambient humidity is big, absorb easily the moisture in the highly humid air and dilute, (solution concentration needs certain salt content when working in the winter time to cause solution concentration, as adopt ethylene glycol, magnesium chloride, Nacl, calcium chloride or sodium chloride are as the refrigerating medium solute, the concentration that generally requires solution is more than 14%) reduce, freezing point rises, as causes freezing and then can make the system can not steady operation.In addition, existing heat exchange column also exists when floating pouring and rainwater invades, float when drenching and also can lose the refrigerating medium solute, it is a large amount of that rainwater is invaded the moisture that absorbs in the highly humid air, also can cause the increase of the thinning and solution of solution, cause refrigerating medium concentration to reduce and measure overflowing greatly, cause the loss of ethylene glycol, magnesium chloride, calcium chloride or sodium chloride, cause cost increase and or complicated add-on system, be regular manual or add refrigerating medium solute, basic solvent and sustained release agent etc. at regular time and quantity as reduce the common way in back when concentration by measuring pump.Also cause environmental pollution in addition.To keep refrigerating medium concentration (assurance freezing point), to reach the purpose of reliability service, as Chinese patent 2008202225189.4 automatic medicine adding apparatus of energy column and in application, but this scheme has increased the consumption that has brought the refrigerating medium solute, caused environmental pollution, improved operation cost greatly, and the input of automatic medicine adding apparatus of energy column itself is also not low.Owing to fail the economic suitable moisture technology of removing the refrigerating medium solute, so a bottleneck has been run in the development of energy tower heat pump technology and popularization.Though desalinization can be adopted multiple-effect evaporation, be suitable for haline water and handle, multiple-effect evaporation needs high frequency thermal source and strong corrosion resistant equipment, invest hugely, moves, energy consumption is high.Other have reverse osmosis membrane (RO) technology be divided into the desalinization film (~ 60mpa), bitter film and pure water film (~ 10mpa)), the cost of investment is low, but only is suitable for the hyposaline degree, producing water ratio is low.And the runtime is short, and film is seriously polluted, replacing is frequent.Still be difficult to use in refrigerating medium solution of the present utility model.
The utility model content
The purpose of this utility model is, a kind of energy tower refrigerating medium solution concentration control and regulation device is provided, remove moisture in the refrigerating medium, concentrate refrigerating medium solution, guarantee the normal use in the winter time of energy tower refrigerating medium, when solving existing energy tower heat pump system energy tower refrigerating medium concentration and using in the winter time because of absorbing the moisture in the highly humid air, especially causing refrigerating medium concentration to reduce and have quite after the dilution of sleet sky overflows, cause the refrigerating medium Falling of Solution Freezing Point that unit can't be moved, also cause calcium chloride, magnesium chloride, sodium chloride, the problem of the loss of ethylene glycol or glycerine etc., increase cost and cause environmental pollution problems (user mode in winter).
The utility model is achieved in that concentration of solution of heat exchange tower secondary refrigerant control and regulation device, utilizes the doughnut hydrophobic membrane to make tubulose, and especially the tubular structure of solid matter also can adopt arc, flat board, doughnut structure; The structure of the tubular film pipe of solid matter is as follows, the film pipe of solid matter expose the end face of managing medial surface, and exposing the inboard end face of all pipes separates by the outer side of sealant and film pipe pipe, promptly the chamber in the pipe all is communicated with a side (hot side) that becomes film, and the outer chamber of pipe also is the opposite side (cold side) of the film of connection; The tubulose of solid matter places in the shell, and be provided with communicating pipe medial surface with the pipe lateral surface import and export.Enter in the tubular film pipe of solid matter and flow out and concentrate the back concentrated solution, the exocoel of pipe then flows out thin liquid (water).Refrigerating medium solution concentration adjusting device sidepiece perforate pipeline is provided with suction pump.
Concentration of solution of heat exchange tower secondary refrigerant control and regulation method, the film distiller low temperature distillation that heat exchange tower secondary refrigerant solution after the moisture absorption adopts the doughnut hydrophobic membrane to constitute is handled, concentrate by film distillation: concentrated solution is 37-85 ℃ of the hot side temperature of doughnut hydrophobic membrane, especially 40-60 ℃, the water after distillation is condensed is that cold side is discharged at the opposite side of doughnut hydrophobic membrane.Solution and water all adopt pump as transmitting power, also can adopt liquid level pressure differential liquor charging.
Refrigerating medium heat exchange tower refrigerating medium solution is especially after the heating of first heat exchanger, solution enters the hot side of film distiller, taphole directly is back to the refrigerating medium heat exchange tower or is back to first heat exchanger, is back to the refrigerating medium heat exchange tower again after constantly concentrating; Adopt the cold side condensate water of the film distiller of plane or tubular structure to flow out, the cold side condensate water is through second heat exchanger, second heat exchanger is connected on refrigerating medium heat exchange tower and the pipeline that first heat exchanger is connected, discharges or seal in the cold side circulation of film distiller behind second heat exchanger.
Method pressurization or control flowing velocity that solution side adopts suitably pressurization to comprise that liquid level promotes, and the water side take the mode that reduces liquid level or take out some vacuum,
Enter in the tubular film pipe of solid matter and flow out and concentrate the back concentrated solution, the exocoel of pipe then flows out thin liquid (water).
The spout hole that the refrigerating medium container of the utility model heat exchange column is provided with, be provided with refrigerating medium working medium or dope that fluid reservoir connects overflow, first heat exchanger can be fluid reservoir and be a heating tank, with the dope processing of heating, as adopt the method for water-bath or electric heating to carry out heat treated, input refrigerating medium solution concentrates and (adopts the hydrophobic membrane distillating method when reaching operating temperature, adopt said apparatus), dope behind the removal moisture is re-used as refrigerating medium solution or concentrates (also can add immediately in the refrigerating medium of heat exchange column) once more, also can add according to the secondary refrigerant liquid density (concentration) of heat exchange column, and the direct harmless emission of the thin liquid (water) that refrigerating medium solution concentration adjusting device is extracted out.
The beneficial effects of the utility model are: by the utility model energy tower refrigerating medium solution concentration control and regulation method and apparatus, remove moisture in the refrigerating medium, concentrate refrigerating medium solution, and the heat exchange balance of solution heating and thin liquid (water) is reasonable, respond well, guarantee the normal use in the winter time of energy tower refrigerating medium, because of absorbing the moisture in the highly humid air, cause refrigerating medium concentration to reduce behind the dilution salt and overflow when solving existing energy tower heat pump system energy tower refrigerating medium concentration and using in the winter time, cause ethylene glycol, magnesium chloride, the problem of the loss of calcium chloride or sodium chloride.The utility model device is simple, and operating cost is low.Purposes is very extensive: can be used for that the heat exchange column of all air source heat pumps is supporting to be controlled refrigerating medium concentration, comprise and be used for the control of domestic type heat pump refrigerating medium solution concentration and regulate, can make the heat exchanger frost-free when use winter, improve the heating efficiency of heat pump---this is the problem that always exists when using present winter; Summer, the tower evaporative heat loss did not need to reduce fusing point with salt solution because of adopting refrigeration unit.
Description of drawings
Fig. 1 is the utility model method flow schematic diagram
Fig. 2 is the structural representation of the refrigerating medium container of the utility model heat exchange column
The specific embodiment
The concentration of solution of heat exchange tower secondary refrigerant adjusting device, make the tubular structure of solid matter with the doughnut hydrophobic membrane, the end face of the film pipe of solid matter is managed between the lateral surface with all and is provided with sealant exposing the pipe medial surface, the pipe medial surface of the film pipe lateral surface with the film pipe is separated, promptly the chamber in the pipe all is communicated with a side hot side that becomes film, and the outer chamber of pipe also is that the opposite side of the film of connection is a cold side; The tubulose of solid matter places in the shell, and is provided with the import and export of communicating pipe medial surface, also is provided with the import and export of communicating pipe lateral surface.Import and export are as the import and export of the circulation of solution and water.
The material that hydrophobic microporous membrane adopts also can be adopted PTFE, PVDF, PP; Wall thickness 0.1-0.3mm provides the semi-permeable wall with permeable membrane, and at least a portion that this permeable membrane has in a plurality of apertures, these apertures manufactures permission capillary condensation according to size; Average pore size 0.12-0.17 μ m.With the hot side of osmotic fluid permeable membrane, its cold side is exposed to osmotic fluid; The utility model adopts modified polyvinilidene fluoride materials such as (PVDF) to constitute the tubular structure of doughnut hydrophobic membrane, especially solid matter; The structure of the tubular film pipe of solid matter is as follows, the tubular film pipe of solid matter is lined up flat end face, expose the side in the pipe, the outer place, sides of all pipes is undertaken bonding by adhesives such as epoxy or PET or alternate manner fixes that (the film pipe is fixed on the funnel of array, the all logical film pipe water conservancy diversion of each funnel), therefore, make the chamber in the pipe all be communicated with a side (hot side) that becomes film.The opposite side (cold side) of the film that all cavitys in the pipe outside also are communicated with; Enter in the tubular film pipe of solid matter and flow out solution (comprise concentrate back solution), all cavitys in the outside of pipe then flow out thin liquid (water); The tubulose of solid matter can be a linear, also can be camber line shape, and the tubular film pipe of described end face structure solid matter places in the container, and upper and lower side constitutes the concentrated solution passage, can draw the thin liquid passage from the sidepiece perforate of container.Refrigerating medium solution concentration adjusting device sidepiece perforate pipeline is provided with suction pump.The dope of concentrated solution passage directly inserts the refrigerating medium circulatory system, and thin liquid (water) is directly discharged or cooling recirculated water uses.Cold-side temperature is at 1-37 ℃.
The utility model is controlled according to the concentration of refrigerating medium, and when concentration was lower than a certain threshold value, the processing flux of the flux film of film can reach 6-15L/m
2H, under more excellent condition up to 15-21L/m
2H.The hydrophobic microporous membrane of 10 square metres of areas of employing can per hour be discharged the fresh water more than 80 kilograms, and along with the raising of membrane technology, this amount can also increase.Utilize this film to make tubulose, the low temperature hydrophobic membrane way of distillation is carried out the salt solution concentration, and result of the test shows, adopts the hydrophobic microporous membrane of 1 square metre of area, and the flow velocity of controlling hot side is 0.5m/s, and the flow velocity of cold side is 0.2m/s, contains CaCl with the water inlet of 100L
2Concentration 8% (weight ratio), when hot side temperature during at 37-40 ℃, running time 2.5h, 20 kilograms of water outlets, concentration brings up to 10%, moves 4 hours, can be out of the water 31 kilograms, concentration brings up to 12%.Be warming up to 45 ℃, continuous operating time 3h, 25 kilograms of water outlets are warming up to 55 ℃, continuous operating time 3h, 26 kilograms of water outlets.Be warming up to 60 ℃, continuous operating time 3h, 26 kilograms of water outlets, 80 degree better effects if heat up.Adopt NaCl solution, basically with CaCl
2Come to the same thing.Adopt Nacl solution also with CaCl
2Result of the test identical.When the flow velocity of controlling hot side reduced to 0.25m/s gradually, the water flux of cold side slightly reduced, and the water flux of cold side also had minimizing when the flow velocity of cold side reduced to 0.1m/s, and flow velocity can not influence water flux when increasing to some extent.The temperature difference of the cold both sides of maintaining heat (especially 15-30 degree) has good influence to keeping flux.In order to guarantee flux, this will how can be overlapped the in parallel or series connection of utility model device.Structure of the present utility model is a shell and tube film distiller, especially adopts structure in parallel or series connection, and the flux of discharging no salt solution can be satisfied.
Certainly not carrying out circulation time controls flow at every turn and can also discharge an amount of water, by first and second heat exchangers refrigerating medium heat after the processing is fully used, the concentrated secondary refrigerant liquid after heating all helps to improve heat exchange efficiency after entering heat exchange tower.Second heat exchanger can make the circulation fluid of cold side reduce temperature, improved the temperature of feed liquor again, thereby raising overall system efficiency, the utility model film distillation method for concentration, can be under relatively mild experiment condition, especially the efficient that the salting liquid of low concentration is condensed into 40 ℃ to 60 ℃ the time high dense saline solution is higher, because increase temperature energy is increased.
The embodiment of device: all expose the inboard end face of pipe and seal by encapsulant, promptly be provided with a kind of perforated plate or the neck up and down of all film pipes 12 all exposed (middle part of film pipe can be provided with support frame), with the up and down neck seal of perforated plate all film pipes by the material 11 of orifice plate forming and hardening.Therefore, the inboard chamber of all pipes all is communicated with, and the chamber in the pipe outside also is communicated with; Enter in the tubular film pipe of solid matter and flow out and concentrate back concentrated solution, the outer thin liquid (water) that then flows out of pipe; The tubular film pipe of described end face structure solid matter is placed in a shell or the container, the interior week of the periphery of perforated plate and shell seals 13 fully, side runner is isolated with outer side runner in making, and is provided with the import and export 14 of communicating pipe medial surface on shell, also is provided with the import and export of communicating pipe lateral surface on the shell.Consider the intensity of film pipe, the length of the utility model film pipe adopts 30-80cm, especially adopts some table apparatus structure in parallel and series connection to satisfy the flux requirement.
The inboard runner of pipe constitutes the concentrated solution passage up and down, can draw the thin liquid passage from the sidepiece upper and lower opening of container.The import and export of promptly managing medial surface be communicated with solid matter the tubular film pipe in, can draw the position up and down of thin liquid channel connection pipe lateral surface from the sidepiece upper and lower opening of container, flow out cold side thin liquid (water); Refrigerating medium solution concentration adjusting device sidepiece perforate pipeline is provided with suction pump.Refrigerating medium solution concentration adjusting device sidepiece perforate pipeline is provided with suction pump, aspirate out steam after condensation discharge salt solution.The flow velocity of controlling hot side is 0.5 ± 0.3m/s, and the flow velocity of cold side is 0.2 ± 0.1m/s.
The embodiment of the utility model device: as shown in Figure 2, the solution of refrigerating medium heat exchange tower A flows into the first heat exchanger B, preferably pass through filter, solid impurity more than the 1mm is all filtered out, the first heat exchanger B is a container of obtaining hot water from hot-water heating system, when temperature during to film system works temperature, after promptly beginning balance, refrigerating medium solution 1, through the first heat exchanger B (can be water-bath or tube side formula heat exchanger or other heat exchanger, also can be electricity or combustion heater) concentrated solution (hot side) that enters film distiller C, promptly enter stream 2, concentrated solution outlet stream 5 directly is back to refrigerating medium heat exchange tower A; It is through one (tube side formula) heat exchanger D that the water (cold side) of film distiller C flows out stream 3, this heat exchanger D is connected on refrigerating medium heat exchange tower A and the pipeline that the first heat exchanger B is connected, series connection rear section discharge section seals in the cold side circulation of film distiller C again, also can partly or entirely discharge 4.Solution according to overflow and refrigerating medium and concentration control refrigerating medium heat exchange tower enters first heat exchanger with different flow, also can be that overflow flows directly into first heat exchanger.
Diagram is seen in the air channel 6 of refrigerating medium heat exchange tower.Certainly, concentrated solution outlet stream 5 can directly be back to the refrigerating medium heat exchange tower.Also can be back to the first heat exchanger B (also being a hot type container), after constantly concentrating, be back to the refrigerating medium heat exchange tower again.
Claims (4)
1. concentration of solution of heat exchange tower secondary refrigerant controls to adjust device, it is characterized in that making the tubular structure of solid matter with the doughnut hydrophobic membrane, the end face of the film pipe of solid matter is managed between the lateral surface with all and is provided with sealant exposing the pipe medial surface, the pipe medial surface of the film pipe lateral surface with the film pipe is separated, promptly the chamber in the pipe all is communicated with a side hot side that becomes film, and the outer chamber of pipe also is that the opposite side of the film of connection is a cold side; The tubulose of solid matter places in the shell, and is provided with the import and export of communicating pipe medial surface on shell, also is provided with the import and export of communicating pipe lateral surface.
2. concentration of solution of heat exchange tower secondary refrigerant control and regulation device according to claim 1, it is characterized in that all end faces that expose the pipe inboard seal by encapsulant, promptly be provided with a kind of perforated plate the neck up and down of all film pipes is all exposed, with the up and down neck seal of perforated plate all film pipes; The tubular film pipe places in a shell or the container, the sealing fully in interior week of the periphery of perforated plate and shell.
3. concentration of solution of heat exchange tower secondary refrigerant according to claim 1 and 2 control and regulation device, it is characterized in that adopting satisfy the in parallel of flux requirement or with the structure of connecting.
4. concentration of solution of heat exchange tower secondary refrigerant control and regulation device according to claim 1 and 2, the length that it is characterized in that the film pipe is 30-80cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201333771U CN201711096U (en) | 2010-03-17 | 2010-03-17 | Device for controlling and adjusting concentration of refrigerating medium solution of heat energy-exchanging tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201333771U CN201711096U (en) | 2010-03-17 | 2010-03-17 | Device for controlling and adjusting concentration of refrigerating medium solution of heat energy-exchanging tower |
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| CN201711096U true CN201711096U (en) | 2011-01-19 |
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| CN2010201333771U Expired - Fee Related CN201711096U (en) | 2010-03-17 | 2010-03-17 | Device for controlling and adjusting concentration of refrigerating medium solution of heat energy-exchanging tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804301A (en) * | 2010-03-17 | 2010-08-18 | 王高元 | Method and device for controlling and adjusting concentration of solution of heat exchange tower secondary refrigerant |
| CN103443552A (en) * | 2011-03-16 | 2013-12-11 | 开利公司 | Air conditioning system with distilled water production from air |
-
2010
- 2010-03-17 CN CN2010201333771U patent/CN201711096U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804301A (en) * | 2010-03-17 | 2010-08-18 | 王高元 | Method and device for controlling and adjusting concentration of solution of heat exchange tower secondary refrigerant |
| CN101804301B (en) * | 2010-03-17 | 2012-12-12 | 王高元 | Method and device for controlling and adjusting concentration of solution of heat exchange tower secondary refrigerant |
| CN103443552A (en) * | 2011-03-16 | 2013-12-11 | 开利公司 | Air conditioning system with distilled water production from air |
| CN103443552B (en) * | 2011-03-16 | 2016-06-15 | 开利公司 | The air handling system of distilled water is produced from air |
| US9784489B2 (en) | 2011-03-16 | 2017-10-10 | Carrier Corporation | Air conditioning system with distilled water production from air |
| US10330360B2 (en) | 2011-03-16 | 2019-06-25 | Carrier Corporation | Air conditioning system with distilled water production from air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20130317 |