CN106679130A - Stepless temperature adjustment type condensation heat recovery air-conditioning unit - Google Patents
Stepless temperature adjustment type condensation heat recovery air-conditioning unit Download PDFInfo
- Publication number
- CN106679130A CN106679130A CN201510761106.8A CN201510761106A CN106679130A CN 106679130 A CN106679130 A CN 106679130A CN 201510761106 A CN201510761106 A CN 201510761106A CN 106679130 A CN106679130 A CN 106679130A
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- Prior art keywords
- air
- heat exchanger
- exchanger
- conditioning
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
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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
Abstract
The invention discloses a stepless temperature adjustment type condensation heat recovery air-conditioning unit which comprises a refrigerating device, a multichannel automatic control valve, a waste heat utilization exchanger, a central air-conditioning cooling tower, an air heat exchanger and an air-conditioning water heat exchanger. According to the invention, a domestic hot water heat exchanger and an underfloor heating generator are separately arranged, so that domestic hot water and underfloor heating hot water are separately treated, quality of the domestic hot water is ensured, the hot water temperature is raised, the problem about storage of a refrigerant in an indoor unit not operated is solved, the refrigerant in a system is fully utilized, and the working efficiency of the system is improved.
Description
Technical field
The present invention relates to a kind of central air-conditioning co-feeding system, specifically a kind of stepless-adjustment warm type condensing units air-conditioner set.
Background technology
Stepless-adjustment warm type condensing units air-conditioner set is a kind of multiple on-line system for increasing Waste Heat Recovery and ground-heating function in common multiple on-line system.The system mainly increases cross valve and high temperature refrigerant is switched into hot water in common multiple on-line system, used heat is stored in into the purpose that water tank reaches recuperation of heat, cold-producing medium is switched to floor heating generator by the system in common multiple on-line system, floor water system circulation is rejected heat to, the effect for heating is reached.It is more excellent than conventional fan coil system that floor heating heats comfortableness, more energy-conservation.
The hot water that hot-water heating system is used with ground heating system in existing stepless-adjustment warm type condensing units air-conditioner set is processed and is used separately simultaneously by same heat exchanger, and hot water for life water quality cannot be guaranteed.Being limited water temperature by compressor operating scope and be usually less than 50 DEG C cannot meet requirements at the higher level of the hot water for life to water temperature.Cold-producing medium can be wherein retained in the case where part indoor set does not run, reduces the refrigerant quality that circulation is operated in system, and affect system operating efficiency.Stepless-adjustment warm type condensing units air-conditioner set of the prior art generally its actual operating efficiency can only achieve the 40% of its design power, even lower.
The content of the invention
In order to overcome the above-mentioned deficiency present invention provide it is a kind of can realize freezing, heat, hot water, floor heating air-conditioning system, and make it to reach the design power of air-conditioning system in the course of the work.
To achieve these goals, the technical solution used in the present invention is：A kind of stepless-adjustment warm type condensing units air-conditioner set, refrigerating plant, multichannel autocontrol valve, UTILIZATION OF VESIDUAL HEAT IN exchanger, central air-conditioning cooling tower, air heat exchanger, air conditioning water heat exchanger,
Described refrigerating plant outlet is connected with UTILIZATION OF VESIDUAL HEAT IN exchanger one end；
One interface of the described UTILIZATION OF VESIDUAL HEAT IN exchanger other end and multichannel autocontrol valve is connected；
Described multichannel autocontrol valve the other three interface is connected respectively with central air-conditioning cooling tower one end, air conditioning water heat exchanger one end and refrigerating plant suction inlet；
The described central air-conditioning cooling tower other end is connected with air heat exchanger；
The described air heat exchanger other end be connected with the air conditioning water heat exchanger other end.
It is an advantage of the invention that：The present invention is separately provided domestic hot-water's exchanging air and floor heating generator, can realize that hot water for life is separately processed with floor heating hot water, ensure the water quality of hot water for life, improve hot water temperature, solve the problems, such as that cold-producing medium is retained in the indoor set not run, make the cold-producing medium in system be fully utilized, improve the operating efficiency of system.
Description of the drawings
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is the system structure diagram of one embodiment of the invention;
In figure：1st, refrigerating plant, 2, oil water separator, 3, UTILIZATION OF VESIDUAL HEAT IN exchanger, 4th, multichannel autocontrol valve, 5, central air-conditioning cooling tower 6, air heat exchanger, 7, blower fan, 8th, direct acting style magnetic valve, 9th, expansion valve, 10, device for drying and filtering, 11, reservoir, 12nd, unidirectional valve group, 13rd, direct acting style magnetic valve, 14, air conditioning water heat exchanger, 15 gas-liquid separators.
Specific embodiment
As shown in figure 1, a kind of one embodiment of stepless-adjustment warm type condensing units air-conditioner set of the invention, it includes：Refrigerating plant 1, oil water separator 2, UTILIZATION OF VESIDUAL HEAT IN exchanger 3, multichannel autocontrol valve 4, central air-conditioning cooling tower 5, air heat exchanger 6, blower fan 7, direct-acting electromagnetic valve 8, expansion valve 9, device for drying and filtering 10, reservoir 11, unidirectional valve group 12, direct-acting electromagnetic valve 13, air conditioning water heat exchanger 14, gas-liquid separator 15.
The outlet of refrigerating plant 1 is connected by oil water separator 2 with the one end of UTILIZATION OF VESIDUAL HEAT IN exchanger 3；4 one interfaces of the other end of UTILIZATION OF VESIDUAL HEAT IN exchanger 3 and multichannel autocontrol valve are connected；The other three interface of multichannel autocontrol valve 4 is connected respectively with the one end of central air-conditioning cooling tower 5, the one end of air conditioning water heat exchanger 14 and the suction inlet of refrigerating plant 1；The other end of central air-conditioning cooling tower 5 is connected with air heat exchanger 6, and motor 7 is provided with air heat exchanger 6；The other end of air heat exchanger 6 is connected with unidirectional valve group 12, and unidirectional valve group 12 is composed in parallel again after being connected by two check valves；Unidirectional valve group 12 is connected with hydraulic accumulator 11, device for drying and filtering 10 and expansion valve 9, and unidirectional valve group 12 is connected with the other end of air conditioning water heat exchanger 14.
UTILIZATION OF VESIDUAL HEAT IN exchanger 3 constitutes loop with sanitary hot water pipe.
Central air-conditioning cooling tower 5 constitutes loop with air conditioning cooling water pipe, and direct-acting electromagnetic valve 8 is provided with air conditioning cooling water inlet pipeline.
Air conditioning water heat exchanger 14 constitutes loop with air-conditioning water pipe, and direct-acting electromagnetic valve 13 is provided with air-conditioning water lines.
The present invention can be with reference to electrical equipment control device（Do not represent in figure）Following several mode of operations can be realized：
1st, summer separate refrigeration operational mode：The high-temperature high-pressure refrigerant gas that refrigerating plant 1 is discharged, through oil water separator 2, central air-conditioning cooling tower 5 is reached after UTILIZATION OF VESIDUAL HEAT IN exchanger 3 and multichannel autocontrol valve 4 carries out heat exchange with air conditioning cooling water, heat is passed to the air conditioning cooling water of low temperature by the refrigerant gas of HTHP through the copper pipe wall of central air-conditioning cooling tower 5, refrigerant gas are become the refrigerant liquid of saturation by overheated gas, flow through air heat exchanger 6, unidirectional valve group 12, hydraulic accumulator 11, device for drying and filtering 10, become the saturated liquid of low-temp low-pressure after the reducing pressure by regulating flow of expanded valve 9 by the saturation gas-liquid of HTHP again, Jing air conditioning water heat exchangers 14 carry out heat exchange, heat passes to refrigerated medium liquid by the copper pipe wall of air conditioner water Jing air conditioning water heat exchangers 14 of high temperature, become superheated steam after refrigerant liquid evaporation endothermic simultaneously, after gas-liquid separator 15, again Jing refrigerating plants 1 are compressed into the gas of HTHP, circulation above procedure just realizes the continuous cooling of central hollow water transfer（Such as 7 degree）, now, air conditioning cooling water direct-acting electromagnetic valve 8 is powered and opens, and air conditioning cooling water circulation, health hot water is not circulated, and blower fan 7 stops.
2nd, summer recuperation of heat cooling operation mode：The high-temperature high-pressure refrigerant gas that refrigerating plant 1 is discharged, through oil water separator 2, UTILIZATION OF VESIDUAL HEAT IN exchanger 3 carries out heat exchange with sanitary water, heat is passed to the health hot water of low temperature by the refrigerant gas of HTHP through the copper pipe wall of UTILIZATION OF VESIDUAL HEAT IN exchanger 3, refrigerant gas are become the refrigerant liquid of saturation by overheated gas, flow through multichannel autocontrol valve 4, central air-conditioning cooling tower 5, air heat exchanger 6, unidirectional valve group 12, hydraulic accumulator 11, device for drying and filtering 10, become the saturated liquid of low-temp low-pressure after the reducing pressure by regulating flow of expanded valve 9 by the saturation gas-liquid of HTHP again, Jing air conditioning water heat exchangers 14 are swapped, heat passes to refrigerant liquid by the air conditioner water Jing air conditioner water freon-copper pipe wall of water- to-water heat exchanger 14 of high temperature, become superheated steam after refrigerant liquid evaporation endothermic simultaneously after gas-liquid separator 15, again Jing refrigerating plants 1 compress the gas of HTHP, circulation above procedure just realizes the continuous intensification of health hot water until design temperature（Such as 55 degree）Continuous cooling with central hollow water transfer is until design temperature（Such as 7 degree）, now, health water circulation, air conditioning cooling water direct-acting electromagnetic valve 8 is closed, and air conditioning cooling water stops circulation, and blower fan 7 is out of service.
3rd, winter heating operational mode：The high-temperature high-pressure refrigerant gas that refrigerating plant 1 is discharged, through oil water separator 2, UTILIZATION OF VESIDUAL HEAT IN exchanger 3, air conditioning water heat exchanger 14 is reached after multichannel autocontrol valve 4 carries out heat exchange with air conditioning hot, heat is passed to the air conditioning hot of high temperature by the refrigerant gas of high temperature through the copper pipe wall of air conditioning water heat exchanger 14, refrigerant gas are become the refrigerant liquid of saturation by overheated gas, the unidirectional valve groups 12 of Jing, hydraulic accumulator 11, device for drying and filtering 10, become the saturated liquid of low-temp low-pressure after the reducing pressure by regulating flow of expanded valve 9 by the saturated liquid of HTHP again, heat exchange is carried out through air heat exchanger 6 and air, heat passes to refrigerated medium liquid by the copper pipe wall of air Jing air heat exchangers 6 of high temperature, become superheated steam after refrigerated medium evaporation endothermic simultaneously, flow through central air-conditioning cooling tower 5 and the Jing refrigerating plants of multichannel autocontrol valve 4 are compressed into the gas of HTHP, circulation above procedure just realizes the continuous intensification of air conditioner water until design temperature（Such as 45 degree）, now, central air-conditioning water circulation, health hot water is not circulated, and blower fan 7 starts.
4th, the independent sanitary water operational mode processed of transition season：The high-temperature high-pressure refrigerant gas that refrigerating plant 1 is discharged, through oil water separator 2, UTILIZATION OF VESIDUAL HEAT IN exchanger 3 carries out heat exchange with sanitary water, heat is passed to the health hot water of low temperature by the refrigerant gas of high temperature through the copper pipe wall of UTILIZATION OF VESIDUAL HEAT IN exchanger 3, refrigerant gas gas is become the refrigerant liquid of saturation by overheated gas, air conditioning water heat exchanger 14 is flowed through Jing after multichannel autocontrol valve 4, the unidirectional valve groups 12 of Jing, hydraulic accumulator 11, device for drying and filtering 10, become the saturated liquid of low-temp low-pressure after the reducing pressure by regulating flow of expanded valve 9 by the saturated liquid of HTHP again, heat exchange is carried out through air heat exchanger 6 and air, heat passes to refrigerated medium liquid by the copper pipe wall of air Jing gas heat exchanger 6 of high temperature, become superheated steam after cold-producing medium evaporation endothermic simultaneously, flow through central air-conditioning cooling tower 5, multichannel autocontrol valve 4, Jing refrigerating plants 1 are compressed into the gas of HTHP after gas-liquid separator 15, circulation above procedure just realizes the continuous intensification of health hot water until design temperature（Such as 55 degree）, now, health hot water circulation, air conditioning hot is not circulated, and blower fan 7 starts.
5 winter health hot waters+heating operation pattern：System Priority health hot water runs, and health hot water reaches and switch to automatically after imposing a condition winter heating operational mode.
Invention described above embodiment, does not constitute limiting the scope of the present invention.Any modification made within the spirit and principles in the present invention, equivalent and improvement etc., should be included within the claims of the present invention.
Claims (3)
1. a kind of stepless-adjustment warm type condensing units air-conditioner set, it is characterised in that include：Refrigerating plant, multichannel autocontrol valve, UTILIZATION OF VESIDUAL HEAT IN exchanger, central air-conditioning cooling tower, air heat exchanger, air conditioning water heat exchanger, described refrigerating plant outlet is connected with UTILIZATION OF VESIDUAL HEAT IN exchanger one end；One interface of the described UTILIZATION OF VESIDUAL HEAT IN exchanger other end and multichannel autocontrol valve is connected；Described multichannel autocontrol valve the other three interface is connected respectively with central air-conditioning cooling tower one end, air conditioning water heat exchanger one end and refrigerating plant suction inlet；The described central air-conditioning cooling tower other end is connected with air heat exchanger；The described air heat exchanger other end be connected with the air conditioning water heat exchanger other end.
2. a kind of stepless-adjustment warm type condensing units air-conditioner set according to claim 1, it is characterised in that：Described UTILIZATION OF VESIDUAL HEAT IN exchanger constitutes loop with sanitary hot water pipe.
3. a kind of stepless-adjustment warm type condensing units air-conditioner set according to claim 1, it is characterised in that：Described central air-conditioning cooling tower constitutes loop with air conditioning cooling water pipe；Described air conditioning water heat exchanger constitutes loop with air-conditioning water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761106.8A CN106679130A (en) | 2015-11-09 | 2015-11-09 | Stepless temperature adjustment type condensation heat recovery air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761106.8A CN106679130A (en) | 2015-11-09 | 2015-11-09 | Stepless temperature adjustment type condensation heat recovery air-conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679130A true CN106679130A (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510761106.8A Pending CN106679130A (en) | 2015-11-09 | 2015-11-09 | Stepless temperature adjustment type condensation heat recovery air-conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679130A (en) |
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2015
- 2015-11-09 CN CN201510761106.8A patent/CN106679130A/en active Pending
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Application publication date: 20170517 |