CN1135592A - Air-conditioning system using mixed working-medium to change concentration regulation - Google Patents
Air-conditioning system using mixed working-medium to change concentration regulation Download PDFInfo
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- CN1135592A CN1135592A CN 96100883 CN96100883A CN1135592A CN 1135592 A CN1135592 A CN 1135592A CN 96100883 CN96100883 CN 96100883 CN 96100883 A CN96100883 A CN 96100883A CN 1135592 A CN1135592 A CN 1135592A
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- valve
- magnetic valve
- temperature
- heat exchanger
- rectifying column
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Abstract
The present invention discloses an air-conditioning system adopting two kinds of mixed working media which are different in boiling point and using their concentration variation to condition temp.. Said invention uses a rectification system formed by adding condensator and liquid reservoir on the top of fractionating rectifying tower and reboiler in bottom of the tower, and makes the rectification system connect with its main system, and adds an electromagnetic valve to make control so as to implement temp. conditioning. Said system is simple in structure, and basically has no need of external heat source.
Description
The present invention relates to a kind of air-conditioning system of utilizing rectifying column to regulate.
What air-conditioning system improved the common employing of performance in season is the capacity regulating mode, as document: the change hybrid refrigeration heat pump of introducing among the Performanceevaluation of a variable speed mixed refrigerant heat pump PB92-143759 adopts variable speed compressor, initial heat pump charges working medium for the 80%R22+20%R13B1 of peak load can be provided, be equipped with the distillation system in parallel with main expansion valve, the liquid refrigerant that contain obtains through separation in the cooling liquid reservoir of rectifier based on R13B1, what obtain at the bottom of tower is liquid refrigerant based on R22, the variation of refrigeration system cycle fluid concentration is by adjusting the aperture of electric expansion valve, thereby force the working medium flow that enters distillation system to change to carry out, not enough is because rectifying column has the necessary condition of degree of thickening effect is must have gaseous working medium to rise at the bottom of the tower, so when because the variation of operating mode can influence separating effect when making the capillary-compensated deficiency.
The object of the present invention is to provide a kind of concentration to regulate the air-conditioning system of room temperature by two kinds of different boiling working medium of mixing in the change system.
The object of the present invention is achieved like this: whole air-conditioning system is made up of major circulatory system and distillation system two parts, and major circulatory system (is existing aircondition bubble and draws together compressor, outdoor heat exchanger, indoor heat exchanger, blower fan; Distillation system comprises rectifying column, liquid reservoir, reboiler, condenser, rectifying tower top is connected with condenser, it under the tower reboiler, coil exchanger is arranged in the reboiler, one termination compressor of coil exchanger, the other end is connected with outdoor heat exchanger by cross valve, the charging aperture that is connected rectifying column simultaneously by magnetic valve A1 with temperature-sensing valve B1, also be connected between indoor heat exchanger and the compressor by cross valve, temperature-sensing valve B3 is connected between indoor heat exchanger and the outdoor heat exchanger to replace original capillary, two ends at temperature-sensing valve B3 are connected to magnetic valve A respectively, B, cross valve and magnetic valve A, B plays jointly and makes system carry out the transformation of summer in winter, at magnetic valve A, the intersection of B is connected to temperature-sensing valve B2, liquid reservoir and reboiler are by magnetic valve A3, A2 connects, the liquid reservoir other end links to each other with the condenser pipeline, one of temperature-sensing valve B2 terminates at magnetic valve A2, between the A3, mix the working medium that has charged two kinds of different boiling in the whole system, temperature-sensing valve B1, B2, B3 is controlled by the system overheat degree, B1 wherein, the B2 direction of action, to guarantee the balance of turnover major circulatory system working medium flow, be subjected to the magnetic valve A1 of indoor temperature negative-feedback control, A2, A3 opens and closes according to the departure degree of the indoor temperature value of setting.
The present invention has the following advantages:
1. even when in time not isolating product in the distillation system startup or owing to other reason, because equal a certain amount of working medium of contain can in time be provided in major circulatory system in liquid reservoir or the reboiler, played cushioning effect within a certain period of time, so can be because of the temporary transient undesired normal operation that influences major circulatory system of distillation system.
2. establish in the reboiler with the compressor air-discharging is the coil exchanger of thermal source, make distillation process without outside resources, when refrigeration, saved the condenser heat exchange area, help reducing condensation temperature, making is simultaneously all having steam to rise at the bottom of rectifying column under any operating mode, thereby guarantees effectively carrying out with stable of distillation process.
3. temperature-sensing valve B2, B3 are carrying out throttling control respectively to cycle fluid in the major circulatory system and by the working medium that distillation system enters major circulatory system under certain pressure reduction, and two-way working medium is not disturbed mutually.
4. temperature-sensing valve B1, B2 are subjected to degree of superheat control to guarantee the relatively stable of the interior working medium total amount of major circulatory system.
Fig. 1 is a system works schematic diagram of the present invention.1 rectifying column wherein, 2 fillers, 3 liquid reservoirs, 4 reboilers, 5 compressors, 6 outdoor heat exchangers, 7 indoor heat exchangers, 8 condensers, 9 coil exchangers, 10 return valves, 11 cross valves, 12 blower fans, A, B, A1, A2, A3 magnetic valve, B1, B2, B3 temperature-sensing valve.
Provide detailed operation process of the present invention below in conjunction with accompanying drawing.In Fig. 1, whole system is mixed the working medium that has charged two kinds of high and low boiling points, higher boiling working medium concentration is higher in the wherein mixed again device 4, low boiling working fluid concentration is higher in the liquid reservoir 3, the temperature value and the deviate of giving two kinds of seasons of summer in default winter respectively | Δ T|, if room temperature is in deviate | within the Δ T| scope, then magnetic valve A1, A2, A3 close, major circulatory system and distillation system break away from isolated operation, and this moment, the major circulatory system capacity was approximately external load.When because variation of ambient temperature, when making major circulatory system greater than external load, as when outdoor temperature reduced the scope cause indoor temperature to be lower than design load and surpassed deviate-Δ T summer, magnetic valve A1, A2 leave, it is main mixed working fluid that distillation system provides higher boiling to major circulatory system, and the major circulatory system capacity descends.When major circulatory system meets the demands, indoor temperature goes back up to the deviate of permission | and in the time of within the Δ T|, magnetic valve A1, A2 close, and major circulatory system breaks away from distillation system again.If instead the major circulatory system capacity is less than external load, when indoor temperature rose, magnetic valve A1, A3 left, and it is main mixed working fluid that distillation system provides low boiling to major circulatory system, and the major circulatory system capacity rises.Making indoor temperature get back to the permissible variation value of design load when the major circulatory system capacity is increased to | in the time of within the Δ T|, magnetic valve A1, A3 close.If outdoor temperature reaches the highest, it is maximum that external load reaches, and then liquid reservoir 3 reaches minimum liquid level, and reboiler 4 reaches the highest liquid level, and vice versa.When winter, major circulatory system was pressed operation of heat pump, be subjected to magnetic valve A2, the A3 of indoor temperature Deviation Control to move exchange.Whole system relies on cross valve 11 and magnetic valve A, B carries out the conversion of summer in winter, winter, magnetic valve A left the B pass, summer, magnetic valve B left the A pass, arrow is the working medium trend when freezing summer among the figure, be after compressor 5 outlet working medium enter coiled parallel operation 9 heat releases that mix again in the device 4,6 condensations of part inlet chamber external heat exchanger, another part is by the charging of magnetic valve A1 as rectifying column 1, when magnetic valve A2 leaves, working medium provides higher boiling working medium by temperature-sensing valve B2 to major circulatory system by reboiler 4 bottoms, when magnetic valve A3 left, working medium provided low boiling working fluid by temperature-sensing valve B2 to major circulatory system by liquid reservoir 3.Winter working medium trend just in time in contrast.When the working medium flow imbalance of turnover major circulatory system, when major circulatory system working medium was increased, the temperature-sensing valve B1 that is controlled by the degree of superheat opened greatly, otherwise turns down.When the indoor heat exchanger 7 outlet working medium degrees of superheat reduce, turned down by the temperature-sensing valve B2 of degree of superheat control, otherwise open big.
Claims (2)
1. an air-conditioning system is by compressor (5), outdoor heat exchanger (6), indoor heat exchanger (7), blower fan (12), capillary is formed, it is characterized in that capillary can be replaced by temperature-sensing valve (B3), respectively be connected to magnetic valve (A) at temperature-sensing valve (B3) two ends, (B), magnetic valve (A), (B) after the other end converges, be connected on magnetic valve (A2), (A3) in the middle of, the other end of magnetic valve (A2) links to each other with reboiler (4) bottom, reboiler (4) top connects rectifying column (1) bottom, rectifying column (1) is top-loaded with condenser (8), one end of liquid reservoir (3) links to each other with condenser (8) pipeline, another termination magnetic valve (A3), disc type heat exchanger (9) in compressor (5) the one termination reboilers (4), the other end of disk heat exchanger (9) is connected with outdoor heat exchanger (6) through cross valve (11), link to each other through the charging aperture of magnetic valve (A1) simultaneously with rectifying column (1), the other end of compressor (5) is connected with indoor heat exchanger (7) through cross valve (11), and whole system is mixed the working medium that has charged two kinds of different boiling.
2. according to the described air-conditioning system of claim 1, it is characterized in that, between magnetic valve (A), (B) intersection and magnetic valve (A2), (A3) intersection, a temperature-sensing valve (B2) is housed, also be added with a temperature-sensing valve (B1) before the charging aperture of rectifying column (1), the temperature-sensing valve of direction of action (B1), (B2) are controlled by the system overheat degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100883 CN1135592A (en) | 1996-02-02 | 1996-02-02 | Air-conditioning system using mixed working-medium to change concentration regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100883 CN1135592A (en) | 1996-02-02 | 1996-02-02 | Air-conditioning system using mixed working-medium to change concentration regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1135592A true CN1135592A (en) | 1996-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96100883 Pending CN1135592A (en) | 1996-02-02 | 1996-02-02 | Air-conditioning system using mixed working-medium to change concentration regulation |
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| Country | Link |
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| CN (1) | CN1135592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972864A (en) * | 2016-07-04 | 2016-09-28 | 中原工学院 | Non-azeotropic mixed working medium heat pump air-conditioning system with concentration adjustable |
-
1996
- 1996-02-02 CN CN 96100883 patent/CN1135592A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972864A (en) * | 2016-07-04 | 2016-09-28 | 中原工学院 | Non-azeotropic mixed working medium heat pump air-conditioning system with concentration adjustable |
| CN105972864B (en) * | 2016-07-04 | 2017-06-16 | 中原工学院 | A kind of adjustable non-azeotropic mixed working medium heat pump type air conditioning system of concentration |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |