CN102338449B - Cooling water type stepless control condensed heat recovery system - Google Patents
Cooling water type stepless control condensed heat recovery system Download PDFInfo
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- CN102338449B CN102338449B CN2011102375982A CN201110237598A CN102338449B CN 102338449 B CN102338449 B CN 102338449B CN 2011102375982 A CN2011102375982 A CN 2011102375982A CN 201110237598 A CN201110237598 A CN 201110237598A CN 102338449 B CN102338449 B CN 102338449B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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Abstract
The invention discloses a cooling water type stepless control condensed heat recovery system. The heat recovery system comprises a condenser water cold heat exchanger(1), a reheat heat exchanger(2), a proportional three-way valve (3), a temperature inductor(4), and a PID(piping and instruments diagram) controller (5), wherein the condenser water cold heat exchanger(1) is connected with a feed pipe (6) and a return pipe (7) and used for recovering the heat generated by an air condition condenser; the reheat heat exchanger(2) is connected in parallel with the pipeline of the return pipe and used for heating indoor air; the inlet of the proportional three-way valve (3) is connected with the backwater outlet of the condenser water cold heat exchanger, one outlet of the proportional three-way valve (3) is connected with the inlet of the reheat heat exchanger, and the other outlet of the proportional three-way valve (3) is connected with the return pipe; the temperature inductor (4) is used for sensing an indoor temperature signal; the PID controller (5) is connected with the proportional three-way valve and the temperature inductor, and used for receiving the temperature signal of the temperature inductor; and the flow opening of the proportional three-way valve is adjusted and controlled according to the temperature signal so as to adjust the reheat flowing to the reheat heat exchanger. The heat recovery system provided by the invention has the advantages of no influence on refrigerating system and self stableness of the refrigerating system, and simultaneously reduces the control complexity.
Description
Technical field
The present invention relates to a kind of conditioner, be specifically related to a kind of cooling water type step-less adjustment reclaiming system for condensation heat for the constant temperature place.
Background technology
At present, people more and more pay attention to low-carbon environment-friendly, how to utilize minimum resource, and the needs that satisfy its work and life are trend of the times.Air-conditioning as a kind ofly satisfy production technology, the comfortable equipment of life is all the more so.
At some the place of constant temperature and humidity requirement is arranged, need to use the thermostatic and humidistatic air conditioning unit group.The thermostatic and humidistatic air conditioning unit group is moved according to the temperature and humidity of setting, when the detected temperature of temperature sensor is higher than setting value, compressor operating refrigeration; Through after a while, detected temperature is lower than design temperature, if this moment, detected humidity also was lower than setting value, compressor is just shut down; If this moment, detected humidity was higher than setting value, then compressor continues operation, dehumidifies, because air-conditioning is when refrigerated dehumidification, temperature reduces gradually, so temperature can be more and more lower, heating compensates so need again, to fluctuate in the accuracy rating that maintains the temperature at setting value.
Existing hot mode again can adopt the heating wire heating or the condensation heat of air-conditioning be carried out recuperation of heat realize heat again, and wherein heating wire heating energy consumption is big, therefore at present mainly is to realize heat again by the condensation heat of refrigeration system being carried out recuperation of heat.But condensation heat is carried out recuperation of heat and is realized that the temperature rise of heat is very big again, and temperature accuracy can not get guaranteeing.The unit of some producer also has the step-less adjustment of carrying out to the refrigeration system condensation heat, but the distribution of the flow proportional of cold-producing medium is very difficult to control.And for a constant condenser, even the flow of cold-producing medium can be regulated, the pressure oscillation of condensation is very big, and the security of refrigeration system can not get guaranteeing.
For addressing the above problem, needing badly provides a kind of condensation step-less adjustment of heat again that realizes, simultaneously the safety and stability of refrigeration system is not had the cooling water type step-less adjustment reclaiming system for condensation heat of influence.
Summary of the invention
The objective of the invention is to avoid deficiency of the prior art and provide a kind of cooling water of water-cooled condenser that utilizes to carry out recuperation of heat, carrying out again to the air behind the cool-down dehumidification, heat heats up, realize hot stepless adjustablely again, also can not influence simultaneously the stable cooling water type step-less adjustment reclaiming system for condensation heat of refrigeration system own.
Purpose of the present invention is achieved through the following technical solutions:
A kind of cooling water type step-less adjustment reclaiming system for condensation heat is provided, comprises:
The Water in Condenser cool-heat-exchanger is connected to feed pipe and return pipe, in order to the heat of the generation of reclaiming air-conditioning condenser;
Heat-heat exchanger is attempted by in the pipeline of described return pipe, in order to the air in the heating clamber again;
The ratio triple valve, the outlet of the backwater of its entrance and Water in Condenser cool-heat-exchanger is joined, and an outlet is joined with the entrance of heat-heat exchanger again, and another outlet is joined with return pipe;
Temperature inductor, the temperature signal that sensing is indoor;
The PID controller joins with ratio triple valve, temperature inductor, receives the temperature signal of temperature inductor, and according to the flow aperture that temperature signal is regulated the control ratio triple valve, flows to the amount of heat again of heat-heat exchanger with adjusting again.
Described heat-heat exchanger again is the pipe-disc type heat exchanger.
Owing to adopted above-mentioned structure, the present invention uses pid algorithm, by the aperture that PID controls to regulate the ratio triple valve, realizes the condensation step-less adjustment of heat again, thereby realizes the constant of indoor temperature.In whole adjustment process, to not influence of refrigeration system, can not influence refrigeration system itself is stable, also reduced the complexity of control simultaneously, thereby a path has been opened up in recuperation of heat and stepless control again in order to solve condensation.
Description of drawings
The invention will be further described to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is that cooling water type step-less adjustment reclaiming system for condensation heat is applied in the structural representation on the air-conditioning unit.
In Fig. 1, include: 1---Water in Condenser cool-heat-exchanger, 2---heat-heat exchanger, 3---ratio triple valve, 4---temperature inductor, 5---PID controller, 6---feed pipe, 7---return pipe, 8---condenser, 9---evaporimeter, 10---compressor again.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, cooling water type step-less adjustment reclaiming system for condensation heat of the present invention is installed on the existing constant temperature air conditioning unit, and the air-conditioning unit mainly comprises condenser 8, evaporimeter 9, compressor 10 etc., and the air-conditioning unit is prior art, no longer describes in detail.
Cooling water type step-less adjustment reclaiming system for condensation heat of the present invention comprises:
Water in Condenser cool-heat-exchanger 1 is connected to feed pipe 6 and return pipe 7, and Water in Condenser cool-heat-exchanger 1 and condenser 8 phase sending and receiving carry out heat exchange with condenser 8, in order to the heat of the generation of reclaiming air-conditioning condenser.
Heat-heat exchanger 2 again, are attempted by in the pipeline of described return pipe 6, in order to the air in the heating clamber; Described heat-heat exchanger again 2 is pipe-disc type heat exchangers.
Ratio triple valve 3, the outlet of the backwater of its entrance and Water in Condenser cool-heat-exchanger 1 is joined, and an outlet is joined with the entrance of heat-heat exchanger 2 again, and another outlet is joined with return pipe 7.The effect of ratio triple valve 3 is to realize the energy adjustment of heat again by regulating hot water through the water yield of heat-heat exchanger 2 again.When ratio triple valve aperture more big, more big by the hot water flow of heat-heat exchanger 2 again, thus increase heat again; Ratio triple valve aperture is more little, and is more little by the hot water flow of heat-heat exchanger 2 again, and other hot water are not got back in the cooling water system through the direct bypass of hot-water coil pipe, thereby reduce heat again.
Temperature inductor 4, the temperature signal that sensing is indoor, temperature inductor 4 can adopt existing infrared inductor.
PID controller 5 joins with ratio triple valve 3, temperature inductor 4, receives the temperature signal of temperature inductor 4, and according to the flow aperture that temperature signal is regulated control ratio triple valve 3, flows to the amount of heat again of heat-heat exchanger 2 with adjusting again.The adjusting of heat is the deviation according to indoor temperature and design temperature again, and when indoor temperature is more lower than design temperature, heat output is more big again.PID controller 5 uses pid algorithm, and the aperture by PID control and regulation ratio triple valve 3 realizes the condensation step-less adjustment of heat again, realizes the constant of indoor temperature.PID control is ratio, integration, differential control, is prior art, is not described in detail.
In a word; though the present invention has exemplified above-mentioned preferred embodiment, should illustrate, though those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (2)
1. a cooling water type step-less adjustment reclaiming system for condensation heat is characterized in that, comprising:
Water in Condenser cool-heat-exchanger (1) is connected to feed pipe (6) and return pipe (7), in order to the heat of the generation of reclaiming air-conditioning condenser;
Heat-heat exchanger (2) is attempted by in the pipeline of described return pipe (6), in order to the air in the heating clamber again;
Ratio triple valve (3), the outlet of the backwater of its entrance and Water in Condenser cool-heat-exchanger (1) is joined, and an outlet is joined with the entrance of heat-heat exchanger (2) again, and another outlet is joined with return pipe (7);
Temperature inductor (4), the temperature signal that sensing is indoor;
PID controller (5), join with ratio triple valve (3), temperature inductor (4), receive the temperature signal of temperature inductor (4), and according to the flow aperture that temperature signal is regulated control ratio triple valve (3), flow to again the amount of heat again of heat-heat exchanger (2) with adjusting.
2. cooling water type step-less adjustment reclaiming system for condensation heat according to claim 1, it is characterized in that: described heat-heat exchanger again (2) is the pipe-disc type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102375982A CN102338449B (en) | 2011-08-18 | 2011-08-18 | Cooling water type stepless control condensed heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102375982A CN102338449B (en) | 2011-08-18 | 2011-08-18 | Cooling water type stepless control condensed heat recovery system |
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| Publication Number | Publication Date |
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| CN102338449A CN102338449A (en) | 2012-02-01 |
| CN102338449B true CN102338449B (en) | 2013-08-14 |
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| CN2011102375982A Active CN102338449B (en) | 2011-08-18 | 2011-08-18 | Cooling water type stepless control condensed heat recovery system |
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| CN110425733A (en) * | 2019-07-08 | 2019-11-08 | 北京万达文旅规划设计院有限公司 | Condensation heat recovery device, artificial snow-making system and condensing units method |
| CN112303762A (en) * | 2020-10-30 | 2021-02-02 | 东莞骏科空调制造有限公司 | Heat recovery air conditioning system using cooling water |
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| CN2409436Y (en) * | 2000-01-24 | 2000-12-06 | 潘启川 | Calorie recovering device for dehumidifying air-conditioner |
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