CN101893293A - Centralized multi-connected cold (heat) source central air conditioning system - Google Patents
Centralized multi-connected cold (heat) source central air conditioning system Download PDFInfo
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Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a centralized multi-connected cold (heat) source central air conditioning system which comprises a central air conditioning device, a cold/heat source system and a circulation pipeline system, wherein the central air conditioning device comprises water-cooling heat pump type central air conditioners in a plurality of regions, the cold/heat source system comprises a plurality of heat exchange systems which are connected in parallel, the connection pipe of each heat exchange system is provided with a corresponding temperature-difference electrically operated valve, and the opening of the valve is controlled by the temperature of heat exchange media and cold/heat sources. By decomposing a bigger simplex central air conditioning device into the smaller regional central air conditioners, the invention thoroughly eliminates energy consumption caused by pipeline insulation, improves the safety and the heat exchange efficiency of the central air conditioning, lowers the operating cost of the central air conditioning system by using the multiple cold/heat sources, and utilizes energy in natural environment and wastes to the greatest extent, thereby achieving the purpose of energy saving and consumption reduction.
Description
Technical field
The present invention relates to a kind of air handling system, it is less and make full use of natural environment energy concentration formula multi-connected cold (heat) source central air conditioner system to refer more particularly to a kind of loss.
Background technology
In air-conditioning system, common domestic air conditioner, comprise compressor, be installed in indoor evaporimeter and be installed in outdoor condenser, under the effect of compressor, cold-producing medium is delivered to indoor cold or heat in the outdoor condenser by closed conduct and then is diffused in the atmosphere or absorbs heat from atmosphere, finish the air conditioning process, because the installation of off-premises station, destroy the attractive in appearance of external wall easily, and the easy dust stratification of condenser fin, cause heat exchanger effectiveness to reduce, therefore for relatively large air-conditioning system and inapplicable, general bigger central air conditioning plant adopts centralized secondary heat exchange system, by being provided with compressor, the unit of water-cooled evaporimeter and water-cooled condenser is placed in the reserved area, chilled water that unit is produced or hot water are sent into by pipeline and are located at indoor airhandling equipment or terminal chilled water device, reach the purpose that air-conditioning is regulated, and the cooling water of water-cooled condenser is disposed in the atmosphere by cooling tower, as China Patent No. is CN200310117449.8, name is called the patent of invention of energy-saving central air conditioner system, comprises the main frame that is used to provide air conditioning needed cold (heat) water source, be used for the unit chilled water is transported to airhandling equipment or terminal chilled water device, be used for air cooling-down, heating, humidification, the dehumidifying and the end equipment of purification filtering and be used for to unit, airhandling equipment and air-conditioning process carry out artificial or regulate automatically and the air-conditioner control system of monitoring; Described air-conditioner control system is handled according to a large amount of dynamic changing data of gathering in real time, draw the optimal dynamic operating instruction of cooling on demand, real-time monitoring is one of " cold-storage operation " or " putting cold operation " two kinds of patterns, though this system can be used for all types of central air conditioner systems, optimization by air-conditioner control system, can reach the saving electric energy, reduce the effect that consumes, but because the pipeline of chilled water is longer, through complex circuit, make the heat insulating work amount of pipeline bigger, cost of manufacture is higher, and cold or thermal losses in the transmission course are more, be unfavorable for the energy-saving and cost-reducing of air-conditioning, the heat of discharging can only exert a certain influence to environment by cooling tower to airborne release, and also there is consumption to a certain degree in cooling water, simultaneously, the central air-conditioning unit of concentrating is huge, and floor space is more, and foundation requirement is higher, give the setting of unit and install all to bring some inconvenience, also there is certain hidden danger in the safe operation of unit.
Summary of the invention
The present invention mainly solves the chilled water of ordinary central air-conditioner system or the technical problem that hot water pipeline is long, the heat insulating work amount is big, loss is higher and Cooling and Heat Source is single, solve the deficiency that bigger central air conditioner system unit is huge, occupations of land is more, the foundation requirement higher-security is not high, installation and maintenance are difficult simultaneously, provide a kind of and be provided with a plurality of Cooling and Heat Source, loss is less, installation and maintenance are convenient, can make full use of natural environment and discarded object energy concentration formula multi-connected cold (heat) source central air conditioner system.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposals:
Centralized multi-connected cold of the present invention (heat) source central air conditioner system comprises central air conditioning plant, cold (heat) origin system and circulating pipe system, described central air conditioning plant comprises a plurality of regional central air conditionings, described regional central air conditioning is a water cooling heat pump type, described circulating pipe system comprises that into water is responsible for and the water outlet person in charge, water inlet is responsible for the water outlet person in charge and is connected with cold (heat) origin system with regional central air conditioning respectively, the cooling water pipe influent side of described regional central air conditioning is responsible for water inlet and is connected, the water outlet side of cooling water pipe is responsible for water outlet and is connected, described cold (heat) origin system comprises a plurality of heat-exchange systems parallel with one another, the tube connector of described each heat-exchange system is provided with corresponding temperature difference motor-driven valve, the temperature that described temperature difference motor-driven valve is imported and exported the temperature difference and cold (heat) source by the heat transferring medium in the circulation line comes by-pass valve control to open to be equipped with corresponding central air conditioning in each zone, influencing each other between the air conditioner is less, less central air conditioner system cost is low, easy for installation, floor space is little, energy loss, energy-conserving and environment-protective, the heat transferring medium parallel connection of a plurality of Cooling and Heat Source concentrates in the same circulation line, make the connection of central air conditioning become more convenient and reasonable, adaptive capacity to load fluctuation is stronger, simultaneously, circulation line can be taked the insulation measure, simplified the mounting process of pipeline, reduced cost of manufacture, the temperature difference motor-driven valve in each loop can be according to the temperature of heat transferring medium and Cooling and Heat Source, the comprehensive unlatching of determining each heat-exchange system, situation according to different load, when reducing energy resource consumption, made full use of the energy of Cooling and Heat Source.
As preferably, described regional central air conditioning comprises unit and some fan coils, described unit comprises compressor, water cooled condenser and control device, described fan coil is connected with unit by refrigerator pipes respectively, the influent side pipeline of described cooling water pipe is provided with the driving water pump, butterfly valve, check (non-return) valve, Pressure gauge and shockproof flexible pipe, the water outlet side pipeline of described cooling water pipe is provided with butterfly valve, Pressure gauge and shockproof flexible pipe, described central air conditioning also is provided with waste-heat recovery device and health hot water heating storage bin, every regional central air conditioning directly is connected circulation line by driving water pump with check (non-return) valve, a plurality of fan coils can satisfy instructions for use, shockproof flexible pipe can be eliminated pipeline resonance, waste-heat recovery device and health hot water heating storage bin can make full use of the heat generation health hot water that central air conditioning is discharged, and have saved the energy.
As preferably, described cold (heat) origin system comprise air source heat-exchange system, source heat-exchange system, water source heat-exchange system and wastewater heat exchange system, described heat-exchange system is parallel with one another and be responsible for water inlet respectively and the water outlet person in charge is connected, the combination in parallel of dissimilar heat-exchange systems, can make full use of the absorption equilibrium function of the Nature and discarded object, reduce the consumption of the energy, reduce the use cost of air-conditioning.
As preferably, described wastewater heat exchange system comprises the wastewater heat exchange device, waste water temperature difference motor-driven valve, connecting pipe, described wastewater heat exchange device is placed in the wastewater disposal basin, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for water inlet and is connected, described outlet pipe is responsible for water outlet and is connected, described waste water temperature difference motor-driven valve is located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer, also be provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer, make full use of the waste water of building discharging and the temperature difference between the heat transferring medium, by the wastewater heat exchange system, cold or heat that central air conditioning is discharged are taken away by waste water, made that energy is converted into useful energy in the waste water of discharging, belong to the utilization of resource regeneration circulation comprehensive.
As preferably, source, described ground heat-exchange system comprises buried source heat exchanger, ground source temperature difference motor-driven valve and connecting pipe, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for water inlet and is connected, described outlet pipe is responsible for water outlet and is connected, source, described ground temperature difference motor-driven valve is located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer, also be provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer, when air-conditioning heats in the winter time, the central air-conditioning condenser recirculated water of low temperature enters circulation and is responsible for also and then the inflow place buried tube heat exchanger, absorb the condenser that reenters central air conditioning after stratum heat heats up by ground heat exchanger, the heat that absorbs is discharged, by source, ground heat-exchange system, made full use of the thermal balance function of the earth, with the cold of discharging or transfer of heat in stratum with very big accumulation of energy.
As preferably, described water source heat-exchange system comprises the water source heat exchanger, water source temperature difference motor-driven valve, connecting pipe and water source water pump, water intake well, back water well, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for water inlet and is connected, described outlet pipe is responsible for water outlet and is connected, described water source temperature difference motor-driven valve and water source water pump are located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer, also be provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer, the water source heat exchanger comprises primary side loop and secondary side loop, heat transferring medium flows into the primary side loop of water source heat exchanger by water source temperature difference motor-driven valve, water source water pump string is serially connected in the secondary side loop, with phreatic water or the adiabatic exchange of extracting in the water intake well of the heat transferring medium in surface water and the primary side loop, cold or transfer of heat that central air conditioning is discharged arrive underground water or surface water place, made full use of the energy in underground water or the surface water, used phreatic water or surface water send back in the back water well again, saved resource.
As preferably, described air source heat-exchange system comprises the open type heat exchange columns, air source temperature difference motor-driven valve and connecting pipe, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for water inlet and is connected, described outlet pipe is responsible for water outlet and is connected, described air source temperature difference motor-driven valve is located on the water inlet pipe, described water inlet pipe is provided with butterfly valve, Pressure gauge and thermometer, also be provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer, by air source heat-exchange system, utilize the huge thermal capacitance equilibrium function of atmosphere, cold that condenser is discharged or heat diffusion reach purpose of energy saving in air.
As preferably, described air source heat-exchange system also comprises the air source heat exchanger, described air source heat exchanger comprises first heat exchange pipeline and second heat exchange pipeline, described first heat exchange pipeline is connected in parallel by tube connector and circulation line, described second heat exchange pipeline is connected in series by tube connector and open type heat exchange columns, also be provided with cooling water pump and water supply tank on described second heat exchange pipeline, circulation line and open type heat exchange columns are separated, the pollution and the loss that can prevent heat transferring medium in the circulation line from when the heat exchange columns evaporation and heat-exchange, directly contacting and cause with atmosphere, keep the heat transferring medium cleaning in the circulation line, when summer air-conditioning freezes, the condensation heat of central air conditioning enters first heat exchange pipeline that the air source heat exchanger was responsible for also and then was flowed in the circulation line water inlet by heat transferring medium, return the outlet pipe of circulation line behind the cooling water temperature by air source heat exchanger second heat exchange pipeline, simultaneously, absorb heat and heat up after cooling water by open type heat exchange columns evaporation and heat-exchange, with the heat of vaporization that absorbs in atmosphere.
As preferably, described pipe-line system is provided with expansion tank, and the heat transferring medium of pipe-line system is an anti-icing fluid,
Under different operating modes, can provide certain buffering, the safe operation of assurance equipment and pipeline, simultaneously, expansion tank can provide the water yield to replenish to circulation line again.
As preferably, described pipe-line system is provided with the solution concentration automaton, and solution concentration is controlled automatically
Device can be monitored the concentration of anti-icing fluid in real time, adds at any time and discharges according to designing requirement, has guaranteed the system safety operation under the different operating modes.
As preferably, the control method of described centralized multi-connected cold thermal source central air conditioner system is as described below, central air conditioner system comprises regional central air conditioning, cold (heat) origin system and circulating pipe system, described cold (heat) origin system by the wastewater heat exchange system, source heat-exchange system, water source heat-exchange system, air source heat-exchange system form or form by two or three heat-exchange systems wherein, the order that each heat-exchange system puts into operation is: wastewater heat exchange system-source, ground heat-exchange system-water source heat-exchange system-air source heat-exchange system, control method comprises the steps:
When getting dim operation in the winter time, the thermal source minimum temperature scope that controller is set is 2～7 ℃, and the setting temperature range of heat transferring medium is 2～7 ℃;
1) open regional central air conditioning, controller is measured the temperature of heat transferring medium and thermal source;
2) when wastewater temperature is set the thermal source minimum temperature greater than controller, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
3) when the temperature difference of the heat transferring medium of turnover wastewater heat exchange device greater than setting the temperature difference or wastewater temperature when setting minimum temperature, switch to i.e. the source heat-exchange system of next order heat-exchange system, open source, ground temperature difference motor-driven valve, source, ground heat-exchange system puts into operation, heat transferring medium flows into ground heat exchanger, simultaneously, when wastewater temperature when setting minimum temperature, the wastewater heat exchange system closing;
4) when the heat transferring medium temperature difference of turnover ground heat exchanger greater than setting the temperature difference or formation temperature when setting minimum temperature, switching to next order heat-exchange system is the water source heat-exchange system, open the moving valve of water source thermoelectric, open the water source water pump, the water source heat-exchange system puts into operation, heat exchanging medium flow entry source heat exchanger, simultaneously, when the stratum temperature when setting minimum temperature, close source, ground heat-exchange system;
5) when the heat transferring medium temperature difference of Inlet and outlet water source heat exchanger when setting the temperature difference, switching to next order heat-exchange system is air source heat-exchange system, opens air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, heat transferring medium flows into the air source heat exchanger;
In summer during refrigerating operaton, the low-temperature receiver maximum temperature scope that controller is set is 34～38 ℃, and the setting temperature range of heat transferring medium is 2～7 ℃;
A) open regional central air conditioning, controller is measured the temperature of heat transferring medium and low-temperature receiver;
B) when wastewater temperature when setting maximum temperature, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
C) when the heat transferring medium temperature difference of turnover wastewater heat exchange device greater than setting the temperature difference or wastewater temperature when setting maximum temperature, switch to i.e. the source heat-exchange system of next order heat-exchange system, open source, ground temperature difference motor-driven valve, source, ground heat-exchange system puts into operation, heat transferring medium flows into ground heat exchanger, simultaneously, when wastewater temperature when setting maximum temperature, close the wastewater heat exchange system;
D) when the heat transferring medium temperature difference of turnover ground heat exchanger greater than setting the temperature difference or formation temperature when setting maximum temperature, switching to next order heat-exchange system is the water source heat-exchange system, open the moving valve of water source thermoelectric, open the water source water pump, the water source heat-exchange system puts into operation, heat exchanging medium flow entry source heat exchanger, simultaneously, when the stratum temperature when setting maximum temperature, close source, ground heat-exchange system;
E) when the heat transferring medium temperature difference of Inlet and outlet water source heat exchanger when setting the temperature difference, switching to next order heat-exchange system is air source heat-exchange system, opens air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, heat transferring medium flows into the air source heat exchanger;
When central air-conditioning system puts into operation, heat transferring medium and cold (heat) source that order that comes into operation according to predefined cold (heat) source and controller are measured, controller determines the unlatching of each heat-exchange system, when the first order heat-exchange system can not satisfy the burden requirement of central air conditioner system, open the second order heat-exchange system, by that analogy, heat-exchange system until last order puts into operation, guarantee the most reasonable operation of system, because waste water is discarded object, stratum energy or underground water and surface water all are green energy resources, and be all available throughout the year, therefore corresponding heat-exchange system does not consume any resource, except safeguarding the expense that produces, do not produce other any expenses, belong to the resource regeneration comprehensive utilization, and air source heat-exchange system also is to have utilized the energy in the atmosphere, except the blower fan power consumption and cooling-water consumption of heat exchange columns, do not consume other energy yet, belong to comprehensive utilization of resources, simultaneously yet, cold (heat) source still is a huge storage body, can make the operation of air-conditioning system more steady.
The invention has the beneficial effects as follows: single central air conditioning plant that will be bigger is decomposed into some less regional central air conditionings, thoroughly eliminated the energy consumption that causes because of pipe insulation, installation and maintenance cost have been reduced, improved the security of central air-conditioning, the installation and maintenance of air-conditioning system is convenient; The use of a plurality of Cooling and Heat Source, reduced the operating cost of central air conditioner system, the use of the temperature difference motor-driven valve in different Cooling and Heat Source heat-exchange systems loop, reasonable distribution flow into the heat transferring medium flow of each heat-exchange system, maximally utilise the energy in natural environment and the discarded object, reached energy saving purposes.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the present invention.
Fig. 2 is the central air conditioning plant structural representation among Fig. 1.
Fig. 3 is the air source heat-exchange system structural representation among Fig. 1.
Fig. 4 is the wastewater heat exchange system architecture schematic diagram among Fig. 1.
Fig. 5 is the structural representation of second kind of embodiment of the present invention.
Fig. 6 is the structural representation of the third embodiment of the present invention.
Fig. 7 is source, the ground heat-exchange system structural representation among Fig. 5.
Fig. 8 is the water source heat-exchange system structural representation among Fig. 6.
1. regional central air conditionings among the figure, the unit of 11. band waste-heat recovery devices, 12. fan coils, 13. the driving water pump, 14. shockproof flexible pipes, 15. health hot waters heating storage bin, 2. water inlet is responsible for, 21. expansion tanks, and 3. water outlet is responsible for, 4. air source heat-exchange system, 41. air source heat exchangers, 42. open type heat exchange columns, 43. air source temperature difference motor-driven valve, 44. cooling water pump, 45. water supply tanks, 5. wastewater heat exchange system, 51. wastewater heat exchange device, 52. waste water temperature difference motor-driven valve, 53. wastewater disposal basins, 6. source heat-exchange system, 61. ground source heat exchanger, 62. ground source temperature difference motor-driven valve, 7. water source heat-exchange system, 71. water source heat exchangers, 72. water source temperature difference motor-driven valve, 73. the water source water pump, 74. water intake wells, 75. back water wells.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment one: centralized multi-connected cold (heat) the source central air conditioner system of present embodiment, as shown in Figure 1,
Comprise central air conditioning plant, cold and heat source system and circulating pipe system, circulating pipe system comprises into the water person in charge 2 and the water outlet person in charge 3, water inlet is responsible for the water outlet person in charge and is connected with cold and heat source system with central air conditioning plant respectively, expansion tank 21 is installed on the cycle cooling plating drum, heat transferring medium in the cycle cooling plating drum is an anti-icing fluid, pipe-line system has also designed the solution concentration automaton, can monitor and control the concentration of anti-icing fluid in real time; Central air conditioning plant comprises the central air conditioning 1 in five zones, as shown in Figure 2, central air conditioning is a water cooling heat pump type, comprise unit 11 and some fan coils 12, unit comprises compressor, water cooled condenser and control device, fan coil is arranged in the room, fan coil is connected with unit by refrigerator pipes respectively, and heat in the room or cold are brought in the condenser of unit by cold-producing medium, the cooling water pipe influent side of water-cooled condenser is responsible for water inlet and is connected, the water outlet side of cooling water pipe is responsible for water outlet and is connected, need the cold or the heat of discharging to bring to circulation line by tube connector, and be diffused in the corresponding Cooling and Heat Source, on the cooling water pipe influent side pipeline butterfly valve is installed, shockproof flexible pipe 14, check (non-return) valve, Pressure gauge and driving water pump 13, on the water outlet side pipeline of cooling water pipe butterfly valve is installed successively, shockproof flexible pipe and Pressure gauge, central air conditioning also designs retracting device and the health hot water heating storage bin 15 that has surplus heat, and cold water is through the condenser circulation heating of central air conditioning and be stored in and can offer the user at any time in the health hot water heating storage bin and use; Cold and heat source system comprises wastewater heat exchange system 5 and air source heat-exchange system 4, as shown in Figure 3 and Figure 4, two heat-exchange systems are parallel with one another and be connected with circulation line, the wastewater heat exchange system comprises wastewater heat exchange device 51, waste water temperature difference motor-driven valve 52, connecting pipe, connecting pipe comprises water inlet pipe and outlet pipe, waste water temperature difference motor-driven valve is installed on the water inlet pipe, butterfly valve, Pressure gauge and thermometer also are installed on the water inlet pipe, butterfly valve, Pressure gauge and thermometer are installed on the outlet pipe, and the wastewater heat exchange device is arranged in the wastewater disposal basin 53; Air source heat-exchange system comprises air source heat exchanger 41, open type heat exchange columns 42, air source temperature difference motor-driven valve 43 and connecting pipe, connecting pipe comprises water inlet pipe and outlet pipe, air source temperature difference motor-driven valve is installed on the water inlet pipe, butterfly valve also is installed on the water inlet pipe, Pressure gauge and thermometer, butterfly valve also is installed on the outlet pipe, Pressure gauge and thermometer, the air source heat exchanger comprises first heat exchange pipeline and second heat exchange pipeline, first heat exchange pipeline is connected in parallel by tube connector and circulation line, second heat exchange pipeline is connected in series by tube connector and open type heat exchange columns, and cooling water pump 44 and water supply tank 45 also are installed on second heat exchange pipeline; The course of work of present embodiment is: when freezing the cycle in summer, the zone central air conditioning is opened, each fan coil work, opening needs to use the butterfly valve of regional central air conditioning cooling circuit and drives water pump, make the anti-icing fluid in the circulation line flow into condenser, the heat that absorbs from the room is delivered on the circulation line by condenser, by job order, at first open the butterfly valve and the waste water temperature difference motor-driven valve of wastewater heat exchange system circuit, the wastewater heat exchange system puts into operation, can't absorb the condensation heat of central air conditioning fully when the wastewater heat exchange system circuit, the import and export temperature difference that makes wastewater heat exchange system circuit anti-icing fluid during greater than 5 ℃ or wastewater temperature greater than 35 ℃, then air source heat-exchange system puts into operation, air source temperature difference motor-driven valve is opened, anti-icing fluid flows into first heat exchange pipeline of air source heat exchanger, with come back to circulation line after the adiabatic exchange cooling of cooling water in second heat exchange pipeline and enter the condenser of central air conditioning, cooling water after heating up in second heat exchange pipeline passes through open type heat exchange columns evaporation and heat-exchange and radiating and cooling, and come back in the air source heat exchanger circulation heat absorption, water replanishing device can replenish the cooling water inflow because of blowdown or evaporation loss, make cooling water inflow keep constant, and cold water repeatedly circulate to add the high-temperature-hot-water of 50～60 ℃ of thermosettings and be stored in the health hot water heating storage bin and use for the user through the waste-heat recovery device of central air conditioner system.When heating the cycle in the winter time, the cold that zone central air conditioning condenser produces enters circulation line, the anti-icing fluid of lower temperature absorbs by being placed on wastewater heat exchange device in the wastewater disposal basin that heat in the waste water heats up and the condenser that enters into central air conditioning again absorbs cold in the circulation line, when the wastewater heat exchange system can not satisfy the dim ability of adopting of central air conditioning, make the anti-icing fluid of wastewater heat exchange system circuit import and export the temperature difference greater than the wastewater temperature in 5 ℃ or the wastewater disposal basin during less than 5 ℃, then air source heat-exchange system puts into operation, air source temperature difference motor-driven valve is opened, anti-icing fluid flows into first heat exchange pipeline of air source heat exchanger, with come back to circulation line after the adiabatic exchange cooling of cooling water in second heat exchange pipeline and enter the condenser of central air conditioning, cooling water after heating up in second heat exchange pipeline passes through open type heat exchange columns evaporation and heat-exchange and radiating and cooling, and come back in the air source heat exchanger circulation heat absorption, operating cost descends 30%～40% than common central air conditioner system, expansion tank and solution concentration automaton also do not freeze heat transferring medium under arctic weather, guaranteed the safety of pipeline and equipment;
The system control method of present embodiment is as described below:
When getting dim operation in the winter time, the thermal source minimum temperature that controller is set is 5 ℃, and the setting temperature difference of anti-icing fluid is 5 ℃;
1) open regional central air conditioning, controller is measured the temperature of anti-icing fluid and thermal source;
2) when wastewater temperature during greater than 5 ℃, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
3) when the temperature difference of the anti-icing fluid of turnover wastewater heat exchange device greater than 5 ℃ or wastewater temperature during less than 5 ℃, switch to air source heat-exchange system, open air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, anti-icing fluid flows into the air source heat exchanger, simultaneously, when wastewater temperature during less than 5 ℃, the wastewater heat exchange system closing;
In summer during refrigerating operaton, the low-temperature receiver maximum temperature that controller is set is 35 ℃, and the setting temperature difference of heat transferring medium is 5 ℃;
A) open regional central air conditioning, controller is measured the temperature of anti-icing fluid and low-temperature receiver;
B) when wastewater temperature during less than 35 ℃, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
C) during greater than 35 ℃, switch to air source heat-exchange system greater than 5 ℃ or wastewater temperature when the anti-icing fluid temperature difference of turnover wastewater heat exchange device, open air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, and anti-icing fluid flows into the air source heat exchanger;
Embodiment two: centralized multi-connected cold (heat) the source central air conditioner system of present embodiment, as Fig. 5 and shown in Figure 7, the difference of present embodiment and embodiment one is, the Cooling and Heat Source difference of central air conditioner system, Cooling and Heat Source in embodiment one is wastewater heat exchange system 5 and air source heat-exchange system 4, the Cooling and Heat Source of present embodiment is ground source heat-exchange system 6 and air source heat-exchange system 4, two heat-exchange systems are in parallel and be connected with circulation line, source, ground heat-exchange system comprises ground heat exchanger 61, ground source temperature difference motor-driven valve 62 and connecting pipe, connecting pipe comprises water inlet pipe and outlet pipe, water inlet pipe is responsible for water inlet and is connected, outlet pipe is responsible for water outlet and is connected, source, ground temperature difference motor-driven valve is installed on the inlet channel, butterfly valve also is installed on the water inlet pipe, Pressure gauge and thermometer, butterfly valve also is installed on the outlet pipe, Pressure gauge and thermometer, heat or cold that the central air conditioning condenser is discharged directly are discharged in the stratum by ground heat exchanger 61, the air source heat-exchange system of present embodiment does not comprise air source heat exchanger 41, anti-icing fluid in the circulation line is directly by open type heat exchange columns 42 evaporation and heat-exchanges, water supply tank 45 is connected in the heat-exchange system of air source, what at first put into operation is source, ground heat-exchange system, and next is air source heat-exchange system in proper order.
Embodiment three: centralized multi-connected cold (heat) the source central air conditioner system of present embodiment, as Fig. 6 and shown in Figure 8, the difference of present embodiment and embodiment one and embodiment two is, increased the quantity of Cooling and Heat Source, the Cooling and Heat Source of present embodiment is a wastewater heat exchange system 5, source, ground heat-exchange system 6, water source heat-exchange system 7 and air source heat-exchange system 4, each heat-exchange system is in parallel mutually and be connected with circulation line, the order that the Cooling and Heat Source of present embodiment puts into operation is: at first be the wastewater heat exchange system, secondly be source, ground heat-exchange system, the back is the water source heat-exchange system again, be air source heat-exchange system at last, the water source heat-exchange system of present embodiment comprises water source heat exchanger 71, water source temperature difference motor-driven valve 72, connecting pipe and water source water pump 73, water intake well 74, back water well 75, connecting pipe comprises water inlet pipe and outlet pipe, water inlet pipe is responsible for water inlet and is connected, outlet pipe is responsible for water outlet and is connected, water source temperature difference motor-driven valve and water source water pump are installed on the inlet channel, also be provided with butterfly valve on the water inlet pipe, Pressure gauge and thermometer, also be provided with butterfly valve on the outlet pipe, Pressure gauge and thermometer, the water source heat exchanger comprises primary side loop and secondary side loop, heat transferring medium flows into the primary side loop of water source heat exchanger by water source temperature difference motor-driven valve, the water source water pump is serially connected in the secondary side loop of water source heat exchanger, with phreatic water or the adiabatic exchange of extracting in the water intake well of the heat transferring medium in surface water and the heat exchanger primary side loop, water source, phreatic water or surface water after heat exchange is handled turn back in the back water well 75 again, have fully saved resource.
The other parts of embodiment two and embodiment three all with the appropriate section of embodiment one roughly the same, this paper repeats no more.
More than explanation is not that the present invention has been done restriction; the present invention also is not limited only to giving an example of above-mentioned explanation; the variation that those skilled in the art have done in essential scope of the present invention, retrofit, increase or replace, all should be considered as protection scope of the present invention.
Claims (10)
1. a centralized multi-connected cold (heat) source central air conditioner system, comprise central air conditioning plant, cold (heat) origin system and circulating pipe system, it is characterized in that: described central air conditioning plant comprises a plurality of regional central air conditionings (1), described regional central air conditioning is a water cooling heat pump type, described circulating pipe system comprises that into water is responsible for (2) and the water outlet person in charge (3), water inlet is responsible for the water outlet person in charge and is connected with cold (heat) origin system with regional central air conditioning respectively, the cooling water pipe influent side of described regional central air conditioning is responsible for water inlet and is connected, the water outlet side of cooling water pipe is responsible for water outlet and is connected, described cold (heat) origin system comprises a plurality of heat-exchange systems parallel with one another, the tube connector of described each heat-exchange system is provided with corresponding temperature difference motor-driven valve, and described temperature difference motor-driven valve comes by-pass valve control to open by the temperature that the heat transferring medium in the circulation line is imported and exported the temperature difference and cold (heat) source.
2. centralized multi-connected cold according to claim 1 (heat) source central air conditioner system, it is characterized in that: described regional central air conditioning (1) comprises unit (11) and some fan coils (12), described unit comprises compressor, water cooled condenser and control device, described fan coil is connected with unit by refrigerator pipes respectively, the influent side pipeline of described cooling water pipe is provided with and drives water pump (13), butterfly valve, check (non-return) valve, Pressure gauge and shockproof flexible pipe (14), the water outlet side pipeline of described cooling water pipe is provided with butterfly valve, Pressure gauge and shockproof flexible pipe, described central air conditioning also are provided with waste-heat recovery device and health hot water heating storage bin (15).
3. centralized multi-connected cold according to claim 1 (heat) source central air conditioner system, it is characterized in that: described cold (heat) origin system comprise wastewater heat exchange system (5), source heat-exchange system (6), water source heat-exchange system (7) and air source heat-exchange system (4), described heat-exchange system is parallel with one another and be responsible for water inlet and the water outlet person in charge is connected.
4. centralized multi-connected cold according to claim 3 (heat) source central air conditioner system, it is characterized in that: described wastewater heat exchange system (5) comprises wastewater heat exchange device (51), waste water temperature difference motor-driven valve (52), connecting pipe, described wastewater heat exchange device is placed in the wastewater disposal basin (53), described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for (2) with water inlet and is connected, described outlet pipe is responsible for (3) with water outlet and is connected, described waste water temperature difference motor-driven valve is located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer also are provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer.
5. centralized multi-connected cold according to claim 3 (heat) source central air conditioner system, it is characterized in that: source, described ground heat-exchange system (6) comprises buried source heat exchanger (61), ground source temperature difference motor-driven valve (62) and connecting pipe, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for (2) with water inlet and is connected, described outlet pipe is responsible for (3) with water outlet and is connected, source, described ground temperature difference motor-driven valve is located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer also are provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer.
6. centralized multi-connected cold according to claim 3 (heat) source central air conditioner system, it is characterized in that: described water source heat-exchange system (7) comprises water source heat exchanger (71), water source temperature difference motor-driven valve (72), connecting pipe and water source water pump (73), water intake well (74), back water well (75), described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for (2) with water inlet and is connected, described outlet pipe is responsible for (3) with water outlet and is connected, described water source temperature difference motor-driven valve is located on the inlet channel, also be provided with butterfly valve on the described water inlet pipe, Pressure gauge and thermometer also are provided with butterfly valve on the described outlet pipe, Pressure gauge and thermometer.
7. according to claim 3, it is characterized in that: described air source heat-exchange system (4) comprises open type heat exchange columns (42), air source temperature difference motor-driven valve (43) and connecting pipe, described connecting pipe comprises water inlet pipe and outlet pipe, described water inlet pipe is responsible for (2) with water inlet and is connected, described outlet pipe is responsible for (3) with water outlet and is connected, described air source temperature difference motor-driven valve is located on the water inlet pipe, described water inlet pipe is provided with butterfly valve, Pressure gauge and thermometer, also is provided with butterfly valve, Pressure gauge and thermometer on the described outlet pipe.
8. according to claim 3 or 7 described centralized multi-connected cold (heat) source central air conditioner systems, it is characterized in that: described air source heat-exchange system also comprises air source heat exchanger (41), described air source heat exchanger comprises first heat exchange pipeline and second heat exchange pipeline, described first heat exchange pipeline is connected in parallel by tube connector and circulation line, described second heat exchange pipeline is connected in series by tube connector and open type heat exchange columns, also is serially connected with cooling water pump (44) and water supply tank (45) on described second heat exchange pipeline.
9. centralized multi-connected cold according to claim 1 (heat) source central air conditioner system, it is characterized in that: described pipe-line system is provided with expansion tank (21), and the heat transferring medium of pipe-line system is an anti-icing fluid, and pipe-line system is provided with the solution concentration automaton.
10. a centralized multi-connected cold (heat) source central air conditioner system control method, central air conditioner system comprises regional central air conditioning, cold (heat) origin system and circulating pipe system, described cold (heat) origin system by the wastewater heat exchange system, source heat-exchange system, water source heat-exchange system, air source heat-exchange system form or form by two or three heat-exchange systems wherein, the order that each heat-exchange system puts into operation is: wastewater heat exchange system-source, ground heat-exchange system-water source heat-exchange system-air source heat-exchange system, control method comprises the steps:
When getting dim operation in the winter time, the thermal source minimum temperature scope that controller is set is 2～7 ℃, and the setting temperature range of heat transferring medium is 2～7 ℃;
1) open regional central air conditioning, controller is measured the temperature of heat transferring medium and thermal source;
2) when wastewater temperature is set the thermal source minimum temperature greater than controller, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
3) when the temperature difference of the heat transferring medium of turnover wastewater heat exchange device greater than setting the temperature difference or wastewater temperature when setting minimum temperature, switch to i.e. the source heat-exchange system of next order heat-exchange system, open source, ground temperature difference motor-driven valve, source, ground heat-exchange system puts into operation, heat transferring medium flows into ground heat exchanger, simultaneously, when wastewater temperature when setting minimum temperature, the wastewater heat exchange system closing;
4) when the heat transferring medium temperature difference of turnover ground heat exchanger greater than setting the temperature difference or formation temperature when setting minimum temperature, switching to next order heat-exchange system is the water source heat-exchange system, open the moving valve of water source thermoelectric, open the water source water pump, the water source heat-exchange system puts into operation, heat exchanging medium flow entry source heat exchanger, simultaneously, when the stratum temperature when setting minimum temperature, close source, ground heat-exchange system;
5) when the heat transferring medium temperature difference of Inlet and outlet water source heat exchanger when setting the temperature difference, switching to next order heat-exchange system is air source heat-exchange system, opens air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, heat transferring medium flows into the air source heat exchanger;
In summer during refrigerating operaton, the low-temperature receiver maximum temperature scope that controller is set is 34～38 ℃, and the setting temperature range of heat transferring medium is 2～7 ℃;
A) open regional central air conditioning, controller is measured the temperature of heat transferring medium and low-temperature receiver;
B) when wastewater temperature when setting maximum temperature, open waste water temperature difference motor-driven valve, the wastewater heat exchange system puts into operation;
C) when the heat transferring medium temperature difference of turnover wastewater heat exchange device greater than setting the temperature difference or wastewater temperature when setting maximum temperature, switch to i.e. the source heat-exchange system of next order heat-exchange system, open source, ground temperature difference motor-driven valve, source, ground heat-exchange system puts into operation, heat transferring medium flows into ground heat exchanger, simultaneously, when wastewater temperature when setting maximum temperature, close the wastewater heat exchange system;
D) when the heat transferring medium temperature difference of turnover ground heat exchanger greater than setting the temperature difference or formation temperature when setting maximum temperature, switching to next order heat-exchange system is the water source heat-exchange system, open the moving valve of water source thermoelectric, open the water source water pump, the water source heat-exchange system puts into operation, heat exchanging medium flow entry source heat exchanger, simultaneously, when the stratum temperature when setting maximum temperature, close source, ground heat-exchange system;
E) when the heat transferring medium temperature difference of Inlet and outlet water source heat exchanger when setting the temperature difference, switching to next order heat-exchange system is air source heat-exchange system, opens air source temperature difference motor-driven valve, air source heat-exchange system puts into operation, heat transferring medium flows into the air source heat exchanger.
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Effective date of registration: 20150626 Address after: 310000 room 3, building 1805, 604 east stream Road, Hangzhou, Zhejiang, Binjiang District Patentee after: Hangzhou green water energy saving Technology Co., Ltd. Address before: Tong Jun Tonglu County of Hangzhou City, Zhejiang province 311500 streets odd road daqishan layer in Lin Yuan 5 Room 203 Patentee before: Fang Guoming |
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