CN109059155A - One kind letting cool the dispersible independently operated large-scale centralized air-conditioning system of control - Google Patents
One kind letting cool the dispersible independently operated large-scale centralized air-conditioning system of control Download PDFInfo
- Publication number
- CN109059155A CN109059155A CN201811086941.6A CN201811086941A CN109059155A CN 109059155 A CN109059155 A CN 109059155A CN 201811086941 A CN201811086941 A CN 201811086941A CN 109059155 A CN109059155 A CN 109059155A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 440
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000009825 accumulation Methods 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 57
- 230000003750 conditioning effect Effects 0.000 description 16
- 230000007704 transition Effects 0.000 description 16
- 238000001816 cooling Methods 0.000 description 11
- 238000011084 recovery Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The present invention provides one kind to let cool the dispersible independently operated large-scale centralized air-conditioning system of control, which includes large-scale energy source station, and large-scale energy source station is connected by transmission and distribution network with subscriber unit, is dispersed with multiple subscriber units along journey on the transmission and distribution network；The transmission and distribution network include it is parallel it is cricoid it is main for water conduit tube, cricoid main return water main pipe, cricoid second return water main pipe and multiple third return water main pipes, large-scale energy source station is connected with main for water conduit tube for water end (W.E.), the backwater end of large-scale energy source station is connected with main return water main pipe, and the second backwater end of large-scale energy source station is connected with the second return water main pipe.Transmission and distribution network of the invention is using three endless tubes arranged side by side and the multiple third return water main pipes of setting, so that the system part that each subscriber unit forms an autonomous closure in discharging cold course lets cool circulation, system lets cool dispersible control independent operating, makes pipe network while meeting the dual requirements of transmission & distribution and energy supply.
Description
Technical field
The invention belongs to air conditioner refrigerating fields, are related to large-scale centralized air-conditioning system, and in particular to one kind lets cool dispersible control
Make independently operated large-scale centralized air-conditioning system.
Background technique
Field of air conditioning system form is mostly the small-sized air condition system of large-scale central air-conditioning system or dispersion, centralization at present
The disadvantages of large-scale energy source station has adjusting not flexible, and computer room space occupied is big, the small-sized air condition system of dispersion can only then utilize list
One energy carries out cold and heat supply, cannot achieve multi-energy complementation.Air-conditioning system is mostly 7 DEG C/12 DEG C for return water temperature summer, winter
Mostly 50 DEG C/40 DEG C, end is unable to satisfy using different grade heat sources and reaches energy saving purpose multi-level demand.Air-conditioning system it is defeated
Pipe network uses two pipes system or four-pipe system, usually only the two effects of fluid supply and energy transmission, the work without accumulation of energy
Use
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide one kind to let cool dispersible control independently
The large-scale centralized air-conditioning system of operation solves the air conditioning terminal that meets that existing large-scale centralized air-conditioning system faces and utilizes different product
Technical contradiction between taste heat source demand and energy saving requirement.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved:
One kind letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, including large-scale energy source station, the large-scale energy
It stands and is connected by transmission and distribution network with subscriber unit, be dispersed with multiple subscriber units along journey on the transmission and distribution network；
The transmission and distribution network include it is parallel it is cricoid it is main for water conduit tube, cricoid main return water main pipe, cricoid second
Return water main pipe and multiple third return water main pipes, large-scale energy source station are connected with main for water conduit tube for water end (W.E.), and large-scale energy source station returns
Water end (W.E.) is connected with main return water main pipe, and the second backwater end of large-scale energy source station is connected with the second return water main pipe；
The large-scale energy source station for being equipped with water pump on water end (W.E.)；
The large-scale energy source station for being provided with and communicated with the first bypass pipe between water end (W.E.) and backwater end；For the first of water end (W.E.)
Bypass pipe junction is located at for water pump on water end (W.E.) and main between water conduit tube；
The main return water main pipe and the second return water main pipe from the first bypass pipe installation site most far from being connected to
It is provided with the second bypass pipe；
Valve is provided on first bypass pipe and the second bypass pipe；
The large-scale energy source station for being provided with valve between the water pump and large-scale energy source station on water end (W.E.)；
Valve is provided in the backwater end and the second backwater end of the large-scale energy source station；
The third return water main pipe is divided into water supply section and backwater section, one end of the water supply section and main return water main pipe phase
Connection is connected between one end of the backwater section and main return water main pipe by three-way valve；
It is provided with temperature sensor and valve in the water supply section, is provided with valve on the backwater section；
The other end of the water supply section is connected with the level-one water segregator of subscriber unit, the other end of the backwater section
It is connected with the level-one water collector of subscriber unit；
The third return water main pipe and subscriber unit correspond, third return water main pipe on the second return water main pipe along
The laying order of subscriber unit is successively laid；
On the second return water main pipe between the connected third return water main pipe water supply section of the same subscriber unit and backwater section not
Lay the water supply section and backwater section of the connected third return water main pipe of other subscriber units；
The subscriber unit includes level-one water segregator and level-one water collector, and level-one water segregator passes through water supply branch pipe and transmission & distribution
The main of pipe network is connected for water conduit tube, and the level-one water collector is dry by the first return branch and the main return water with transmission and distribution network
Pipe is connected；
The level-one water segregator also passes through accumulation of energy branch pipe and is connected with the main of transmission and distribution network for water conduit tube；
The level-one water collector also passes through the second return branch and is connected with the second return water main pipe with transmission and distribution network；
Conventional end, big temperature difference end and second level has been installed in parallel between the level-one water segregator and level-one water collector to use
Family unit；
Secondary user's unit includes secondary water segregator and second level water collector, and secondary water segregator and level-one water segregator are logical
It crosses second level water supply branch pipe to be connected, second level water collector is connected with level-one water collector by second level return branch, secondary water segregator and two
Energy Island, dry coils and dry type end have been installed in parallel between grade water collector.
The present invention also has following technical characteristic:
Parallel communication is provided with the first mixed water pipe on the conventional end；Parallel communication is arranged on the dry coils
There is the second mixed water pipe.
Water pump, the conventional end, big temperature difference end, energy Island, dry coils are installed on the accumulation of energy branch pipe
Water pump is in series with on dry type end.
Valve is provided in the water supply branch pipe, the first return branch, accumulation of energy branch pipe and the second return branch；
Valve is provided on the second level water supply branch pipe and second level return branch；
Three-way valve is provided on the mixed water pipe of described first and the second mixed water pipe.
The present invention also protects a kind of control method for letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, should
Method is the summer according to environment locating for subscriber unit using the large-scale centralized air-conditioning system as described above with distributed cold and heat source
Season, winter and conditioning in Transition Season provide corresponding control method；
When the environment locating for the subscriber unit is summer, using summer control method；
When the environment locating for the subscriber unit is winter, using winter control method；
When the environment locating for the subscriber unit is conditioning in Transition Season, using conditioning in Transition Season control method；
In the summer control method, it can be stored first by the opposite transmission and distribution network of energy Island in multiple subscriber units
It is cold, then let cool by transmission and distribution network to multiple subscriber units.
The summer control method are as follows:
Operating condition one, conventional operating condition:
The water pump for water end (W.E.) of large-scale energy source station starts, and concatenated water pump is opened on conventional end and big temperature difference end；
The valve for water end (W.E.) of large-scale energy source station is opened, and the valve of the backwater end of large-scale energy source station is opened, main return water main pipe
On three-way valve open to main return water main pipe before and after the backwater section and main return water main pipe of connection and third return water main pipe disconnect, supply
Valve on water branch pipe, the first return branch is opened, and the three-way valve on the first mixed water pipe supplies back according to required for conventional end
Coolant-temperature gage is proportionally opened；
Conventional end and the operation of big temperature difference end, large-scale energy source station directly supplies low-temperature cold water to big temperature difference end, and leads to
It crosses after the mixed water of the first mixed water pipe and supplies room temperature cold water to conventional end；
Secondary user's unit and level-one water segregator and level-one water recovery apparatus disconnect simultaneously, energy Island, dry coils and dry type end
Water pump on end is opened, and secondary user's unit works independently；
Operating condition two, Smaller load operating condition:
Concatenated water pump is opened on conventional end, big temperature difference end, dry coils and dry type end and energy Island, other
Water pump is turned off；
Secondary user's unit is connected to level-one water segregator and level-one water recovery apparatus, and the three-way valve opening on the first mixed water pipe makes
The first mixed water pipe is obtained with conventional end disconnection and level-one water segregator is connected to conventional end, the three-way valve root on the second mixed water pipe
It is proportionally opened according to supply and return water temperature required for dry coils, other valves are turned off；
Large-scale energy source station stops supplying low-temperature cold water to subscriber unit, and energy Island is let cool, supply conventional end, big temperature difference end
End, dry coils and dry type end；
Operating condition three, to transmission and distribution network charging:
Water pump on accumulation of energy branch pipe and energy Island is opened, and other water pumps are turned off；
Valve on first bypass pipe and the second bypass pipe is opened, and the triple valve on main return water main pipe is opened dry to main return water
It is connected to before and after pipe and is disconnected with the backwater section of third return water main pipe；
Valve in accumulation of energy branch pipe, second level water supply branch pipe and second level return branch is opened, energy Island and level-one water segregator
It is connected to level-one water recovery apparatus, other valves are closed；
Subscriber unit saves low-temperature cold water into transmission and distribution network under the drive of water pump；
Operating condition four: transmission and distribution network discharging:
Water pump on accumulation of energy branch pipe is closed, and other water pumps are fully open；
Triple valve on main return water main pipe disconnects before and after opening to main return water main pipe and the backwater section with third return water main pipe
Connection；Valve in the water supply section of third return water main pipe is opened；
Three-way valve on first mixed water pipe and the second mixed water pipe is according to the supply and return water temperature of conventional end and dry coils
Demand adjusts aperture ratio, and other valves are closed；
Main return water main pipe starts independently to let cool, supply conventional end and big temperature difference end, each subscriber unit and corresponding
Main return water main pipe between the water supply section and backwater section and water supply section and backwater section of third return water main pipe forms an independent envelope
The part closed lets cool circulation, and temperature sensor monitors each part and lets cool the water temperature in recycling；
When the part at least one subscriber unit, which lets cool the water temperature in circulation, is greater than 8 DEG C, start large-scale energy source station
For the water pump of water end (W.E.), the valve of the second backwater end of large-scale energy source station is opened；
Whenever thering is the part in a subscriber unit to let cool the water temperature in circulation greater than 8 DEG C, by the water temperature greater than 8 DEG C
Valve on the corresponding third return pipe of subscriber unit is closed, and the corresponding main return water of subscriber unit by the water temperature greater than 8 DEG C is done
The two paths of three-way valve on pipe are all closed, and execute following procedure in subscriber unit of the water temperature greater than 8 DEG C:
Valve on water supply branch pipe, the second return branch is opened, and the three-way valve on the first mixed water pipe is according to conventional end institute
The supply and return water temperature needed is proportionally opened；Conventional end and the operation of big temperature difference end, large-scale energy source station is to big temperature difference end
Low-temperature cold water is directly supplied, and by supplying room temperature cold water to conventional end after the mixed water of the first mixed water pipe；Secondary user is single simultaneously
Member is disconnected with level-one water segregator and level-one water recovery apparatus, and the water pump on energy Island, dry coils and dry type end is opened, and second level is used
Family unit works independently；
Threeway when the part in all subscriber units, which lets cool the water temperature in circulation, is both greater than 8 DEG C, on main return water main pipe
It connection and is disconnected with the backwater section of third return water main pipe before and after fully open to the main return water main pipe of valve, the in all subscriber units
The valve of closing in two return branch, the second backwater end of large-scale energy source station is closed, and system is switched to conventional operating condition.
The winter control method are as follows:
Operating condition one: conventional operating condition:
The open and close state of water pump and valve and the summer in the conventional operating condition of the winter control method
Water pump is identical with the open and close state of valve in the conventional operating condition of control method；
Large-scale energy source station is supplied to the direct supplying high temperature hot water in big temperature difference end, and by the first mixed water pipe to conventional end
It gives；
Secondary user's unit and level-one water segregator and level-one water recovery apparatus disconnect simultaneously, energy Island, dry coils and dry type end
Water pump on end is opened, and secondary user's unit works independently；
Operating condition two, Smaller load operating condition:
In the Smaller load operating condition of the winter control method open and close state of water pump and valve with it is described
Summer control method Smaller load operating condition in water pump it is identical with the open and close state of valve；
Large-scale energy source station stops supplying conventional end, big temperature difference end to subscriber unit supplying high temperature hot water, energy Island heat release
End, dry coils and dry type end；
The conditioning in Transition Season control method are as follows:
The open and close state of water pump and valve and the summer control method in the conditioning in Transition Season control method
Smaller load operating condition in water pump it is identical with the open and close state of valve；
Large-scale energy source station stops supplying low-temperature cold water or high-temperature-hot-water to subscriber unit, and energy Island is let cool or heat release, supply
Conventional end, big temperature difference end, dry coils and dry type end.
The process that secondary user's unit works independently are as follows: the water pump on energy Island, dry coils and dry type end
It opens, triple valve supply and return water temperature according to needed for dry coils on the second mixed water pipe is proportionally opened, energy Island, disk
Pipe and the operation of dry type end, energy Island is independently let cool to dry coils and dry type end or heat release；
When secondary user's unit works independently, independently let cool in summer control method, in winter control method
Middle independent heat release.
The energy Island provides high temperature cold water when letting cool, when energy Island heat release provides low-temperature water heating.
Compared with prior art, the present invention beneficial has the technical effect that
(I) transmission and distribution network of the invention is using three endless tubes arranged side by side and the multiple third return water main pipes of setting, so that system
The part that each subscriber unit forms an autonomous closure in discharging cold course lets cool circulation, and system lets cool dispersible control solely
Vertical operation, makes pipe network while meeting the dual requirements of transmission & distribution and energy supply；The increased third return water main pipe of the present invention then can be effectively
Existing following problems when solution is let cool: the cooling capacity or heat that (A) each subscriber unit obtains are uneven, far obtain from energy source station
Cooling capacity or heat with regard to smaller, and the obtained cooling capacity of subscriber unit and heat close to temperature sensor installation site are then on the low side；
(B) only setting temperature sensor then may cause the stage of letting cool and obtain close to the subscriber unit of temperature sensor installation site on supervisor
To cooling capacity or heat be unable to satisfy user demand, or to cause system to let cool insufficient.(C) each subscriber unit can not be controlled independently
System, if the larger Smaller load it will cause the subscriber unit of big load " supply exceed demand " of each subscriber unit end load gap
Subscriber unit " supply falls short of demand ".
(II) the second return water main pipe of the invention makes to be used to accumulation of energy at night for return water main pipe, increases pipe network accumulation of energy
Ability, while when strong ground solves return water main pipe accumulation of energy stored low-temperature cold water or high-temperature-hot-water are mixed with the water in former return pipe
Be blended back into small energy Island, caused by cold and heat supply low efficiency and the insufficient problem of accumulation of energy.
(III) the invention enables each subscriber unit when letting cool independent control, taken on demand, the use big for end load
Family unit can be terminated in advance and be let cool, and be directly entered conventional cooling mode；Pipe network can be made sufficiently to let cool simultaneously.
(IV) the sufficient paddy electricity valence cheap using night of the present invention reaches energy conservation and saves the double benefit of operating cost.
The energy that cyclic annular transmission and distribution network meets each energy Island simultaneously is mutually supported, and energy waste when reducing user's Smaller load is asked
Topic.
(V) present invention combines centralized large-size air conditioning system with distributing air-conditioning system, is able to achieve morning and evening or winter
Summer shifts to an earlier date or postpones cold and heat supply, makes the more flexible convenience of the runing adjustment of system.Centralized energy source station supplies low temperature to user
Cold water and/or high-temperature-hot-water, energy Island supply supplying high temperature cold water and/or high temperature cold water to user, meet air conditioning terminal benefit
Reach energy saving purpose multi-level demand with different taste heat sources.
(VI) present invention is suitable for airport class far from cities and towns, and large space user and multiple modular small users concentrate on one
The occasion risen.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the air-conditioning system of invention.
The meaning of each label in figure are as follows: 1- large size energy source station, 2- transmission and distribution network, 3- subscriber unit, 4- conventional end, 5-
Big temperature difference end, 6- secondary user unit, 7- energy Island, 8- dry coils, 9- dry type end, 10- water pump, 11- valve, 12-
Three-way valve, 13- temperature sensor；
101- is for water end (W.E.), 102- backwater end, the second backwater end of 103-, the first bypass pipe of 104-；
201- is main for water conduit tube, the main return water main pipe of 202-, 203- the second return water main pipe, 204- third return water main pipe, 2041-
Water supply section, 2042- backwater section, the second bypass pipe of 205-；
301- level-one water segregator, 302- level-one water collector, 303- water supply branch pipe, the first return branch of 304-, 305- accumulation of energy
Branch pipe, the second return branch of 306-, 307- first mix water pipe；
601- secondary water segregator, 602- second level water collector, 603- second level water supply branch pipe, 604- second level return branch, 605-
Second mixed water pipe.
Explanation is further explained in detail to particular content of the invention below in conjunction with drawings and examples.
Specific embodiment
Although three control transmission and distribution networks realize the accumulation of energy of pipe network, but due to each subscriber unit along pipe network along the distribution of journey
Position is different, causes that pipe network is let cool or there are the following problems when heat release:
(A) mixing is easily caused to the low-temperature cold water that return pipe stores in the cold-storage later period and return to the refrigeration unit of subscriber unit,
Unit efficiency is caused to be lower, and pipe network cold-storage is not enough；
(B) cooling capacity or heat that each subscriber unit obtains are uneven, and the cooling capacity or heat far obtained from energy source station is more
It is small, and cooling capacity and heat that the subscriber unit of close temperature sensor installation site obtains are then on the low side；
(C) only setting temperature sensor then may cause the stage of letting cool close to the use of temperature sensor installation site on supervisor
The cooling capacity or heat that family unit obtains are unable to satisfy user demand, or to cause system to let cool insufficient.
(D) each subscriber unit can not independent control, if each subscriber unit end load gap it is larger it will cause
The subscriber unit " supply exceed demand " of big load and the subscriber unit " supply falls short of demand " of Smaller load.
It should be noted that the large-scale energy source station in the present invention includes the cold and heat supply unit and ice-reserving of various energy resources form
Slot.
It should be noted that the energy Island in the present invention is the air-conditioning system of small-sized dispersion, refer generally to air source heat pump.
It should be noted that summer of the invention is to refer generally to annual May to October for cold season.
It should be noted that winter of the invention is heating season, refer generally to the March 15 of annual November 15 to next year
Day.
It should be noted that conditioning in Transition Season of the invention is non-heating for cold season.
It should be noted that low-temperature cold water of the invention is that supply water temperature is lower than 7 DEG C of cold water, refer generally to 2~3 DEG C cold
Water.
It should be noted that high temperature cold water of the invention is the cold water that supply water temperature is higher than 7 DEG C, refer generally to 14~16 DEG C
Cold water.
It should be noted that high-temperature-hot-water of the invention is the hot water that supply water temperature is higher than 50 DEG C, refer generally to 60 DEG C of heat
Water.
It should be noted that low-temperature water heating of the invention is the hot water that supply water temperature is 50 DEG C.
It should be noted that conventional end refers to that summer supply and return water temperature is 7/12 DEG C of cooling supply end, winter is supplied back
The heating end that coolant-temperature gage is 50/45 DEG C.
It should be noted that big temperature difference end refers to that supply backwater temperature difference is greater than 5 DEG C of cold and heat supply end, refer generally to supply
The cold and heat supply end that backwater temperature difference is 10 DEG C or so.
It should be noted that dry type end refers to that summer supply and return water temperature is the cooling supply end of high temperature cold water.
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
Embodiment 1:
The present embodiment provides one kind and lets cool the dispersible independently operated large-scale centralized air-conditioning system of control, as shown in Figure 1, packet
Large-scale energy source station 1 is included, large-scale energy source station 1 is connected by transmission and distribution network 2 with subscriber unit 3, along journey point on the transmission and distribution network 2
Cloth multiple subscriber units 3；
The transmission and distribution network 2 include it is parallel it is cricoid it is main for water conduit tube 201, it is cricoid main return water main pipe 202, cyclic annular
The second return water main pipe 203 and multiple third return water main pipes 204, large-scale energy source station 1 for water end (W.E.) 101 and main for water conduit tube 201
It is connected, the backwater end 102 of large-scale energy source station 1 is connected with main return water main pipe 202, the second backwater end 103 of large-scale energy source station 1 and the
Two return water main pipes 203 are connected；
The large-scale energy source station 1 for being equipped with water pump 10 on water end (W.E.) 101；
The large-scale energy source station 1 for being provided with and communicated with the first bypass pipe 104 between water end (W.E.) 101 and backwater end 102；For
104 junction of the first bypass pipe of water end (W.E.) 101 is located at for water pump 10 on water end (W.E.) 101 and main between water conduit tube 201；
The main return water main pipe 202 and the second return water main pipe 203 is in the position farthest from 103 installation site of the first bypass pipe
The place of setting is provided with and communicated with the second bypass pipe 205；
Valve 11 is provided on first bypass pipe 104 and the second bypass pipe 206；
The large-scale energy source station 1 for being provided with valve 11 between the water pump 10 and large-scale energy source station 1 on water end (W.E.) 101；
Valve 11 is provided in the backwater end 102 of the large-scale energy source station 1 and the second backwater end 103；
The third return water main pipe 204 divides for water supply section 2041 and backwater section 2042, and the one of the water supply section 2041
End is connected with main return water main pipe 202, passes through three-way valve between one end of the backwater section 2042 and main return water main pipe 202
12 connections；
It is provided with temperature sensor 13 and valve 11 in the water supply section 2041, is provided on the backwater section 2042
Valve 11；
The other end of the water supply section 2041 is connected with the level-one water segregator 301 of subscriber unit 3, the backwater section
2042 other end is connected with the level-one water collector 302 of subscriber unit 3；
The third return water main pipe 204 and subscriber unit 3 corresponds, and third return water main pipe 204 is dry in the second return water
It is successively laid on pipe 202 along the laying order of subscriber unit 3；
Second between the connected 204 water supply section 2041 of third return water main pipe of the same subscriber unit 3 and backwater section 2042
The water supply section 2041 and backwater section of the connected third return water main pipe 204 of other subscriber units 3 are not laid on return water main pipe 202
2042；
The subscriber unit 3 includes level-one water segregator 301 and level-one water collector 302, and level-one water segregator 301 passes through water supply
Branch pipe 303 is connected with the main of transmission and distribution network 2 for water conduit tube 201, and the level-one water collector 302 passes through the first return branch
304 are connected with the main return water main pipe 202 with transmission and distribution network 2；
The level-one water segregator 301 is also connected with the main of transmission and distribution network 2 for water conduit tube 202 by accumulation of energy branch pipe 305；
The level-one water collector 302 also passes through the second return branch 306 and the second return water main pipe with transmission and distribution network 2
203 are connected；
Conventional end 4, big temperature difference end 5 have been installed in parallel between the level-one water segregator 301 and level-one water collector 302
With secondary user unit 6；
Secondary user's unit 6 includes secondary water segregator 601 and second level water collector 602, secondary water segregator 601 and one
Grade water segregator 301 is connected by second level water supply branch pipe 603, and second level water collector 602 and level-one water collector 302 pass through second level return water branch
Pipe 604 is connected, and energy Island 7, dry coils 8 and dry type end have been installed in parallel between secondary water segregator 601 and second level water collector 602
End 9.
As a kind of concrete scheme of the present embodiment, parallel communication is provided with the first mixed water pipe 307 on conventional end 4；Institute
Parallel communication is provided with the second mixed water pipe 605 on the dry coils 8 stated.
As a kind of concrete scheme of the present embodiment, water pump 10 is installed on accumulation of energy branch pipe 305, the conventional end 4,
Water pump 10 is in series on big temperature difference end 5, energy Island 7, dry coils 8 and dry type end 9；
As a kind of concrete scheme of the present embodiment, water supply branch pipe 303, the first return branch 304,305 and of accumulation of energy branch pipe
Valve 11 is provided in second return branch 306；
Valve 11 is provided on the second level water supply branch pipe 603 and the first return branch of second level 604；
Three-way valve 12 is provided on the mixed water pipe 307 of described first and the second mixed water pipe 605.
Embodiment 2:
The present embodiment provides a kind of control method for letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, should
Method lets cool the dispersible independently operated large-scale centralized air-conditioning system of control using as described in example 1 above.This method according to
Environment locating for the unit of family is summer, winter and conditioning in Transition Season, provides corresponding control method；
When the environment locating for the subscriber unit is summer, using summer control method；
When the environment locating for the subscriber unit is winter, using winter control method；
When the environment locating for the subscriber unit is conditioning in Transition Season, using conditioning in Transition Season control method；
In the summer control method, it can be stored first by the opposite transmission and distribution network of energy Island in multiple subscriber units
It is cold, then let cool by transmission and distribution network to multiple subscriber units.
Embodiment 3:
The present embodiment provides a kind of control method for letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, should
Method lets cool the dispersible independently operated large-scale centralized air-conditioning system of control using as described in example 1 above.This method according to
Environment locating for the unit of family is summer, winter and conditioning in Transition Season, provides corresponding control method；The environment locating for the subscriber unit is
When summer, using summer control method, the summer control method are as follows:
Operating condition one, conventional operating condition:
The water pump for water end (W.E.) of large-scale energy source station starts, and concatenated water pump is opened on conventional end and big temperature difference end；
The valve for water end (W.E.) of large-scale energy source station is opened, and the valve of the backwater end of large-scale energy source station is opened, main return water main pipe
On three-way valve open to main return water main pipe before and after the backwater section and main return water main pipe of connection and third return water main pipe disconnect, supply
Valve on water branch pipe, the first return branch is opened, and the three-way valve on the first mixed water pipe supplies back according to required for conventional end
Coolant-temperature gage is proportionally opened；
Conventional end and the operation of big temperature difference end, large-scale energy source station directly supplies low-temperature cold water to big temperature difference end, and leads to
It crosses after the mixed water of the first mixed water pipe and supplies room temperature cold water to conventional end；
Secondary user's unit and level-one water segregator and level-one water recovery apparatus disconnect simultaneously, energy Island, dry coils and dry type end
Water pump on end is opened, and secondary user's unit works independently；
Operating condition two, Smaller load operating condition:
Concatenated water pump is opened on conventional end, big temperature difference end, dry coils and dry type end and energy Island, other
Water pump is turned off；
Secondary user's unit is connected to level-one water segregator and level-one water recovery apparatus, and the three-way valve opening on the first mixed water pipe makes
The first mixed water pipe is obtained with conventional end disconnection and level-one water segregator is connected to conventional end, the three-way valve root on the second mixed water pipe
It is proportionally opened according to supply and return water temperature required for dry coils, other valves are turned off；
Large-scale energy source station stops supplying low-temperature cold water to subscriber unit, and energy Island is let cool, supply conventional end, big temperature difference end
End, dry coils and dry type end；
Operating condition three, to transmission and distribution network charging:
Water pump on accumulation of energy branch pipe and energy Island is opened, and other water pumps are turned off；
Valve on first bypass pipe and the second bypass pipe is opened, and the triple valve on main return water main pipe is opened dry to main return water
It is connected to before and after pipe and is disconnected with the backwater section of third return water main pipe；
Valve in accumulation of energy branch pipe, second level water supply branch pipe and second level return branch is opened, energy Island and level-one water segregator
It is connected to level-one water recovery apparatus, other valves are closed；
Subscriber unit saves low-temperature cold water into transmission and distribution network under the drive of water pump；
Operating condition four: transmission and distribution network discharging:
Water pump on accumulation of energy branch pipe is closed, and other water pumps are fully open；
Triple valve on main return water main pipe disconnects before and after opening to main return water main pipe and the backwater section with third return water main pipe
Connection；Valve in the water supply section of third return water main pipe is opened；
Three-way valve on first mixed water pipe and the second mixed water pipe is according to the supply and return water temperature of conventional end and dry coils
Demand adjusts aperture ratio, and other valves are closed；
Main return water main pipe starts independently to let cool, supply conventional end and big temperature difference end, each subscriber unit and corresponding
Main return water main pipe between the water supply section and backwater section and water supply section and backwater section of third return water main pipe forms an independent envelope
The part closed lets cool circulation, and temperature sensor monitors each part and lets cool the water temperature in recycling；
When the part at least one subscriber unit, which lets cool the water temperature in circulation, is greater than 8 DEG C, start large-scale energy source station
For the water pump of water end (W.E.), the valve of the second backwater end of large-scale energy source station is opened；
Whenever thering is the part in a subscriber unit to let cool the water temperature in circulation greater than 8 DEG C, by the water temperature greater than 8 DEG C
Valve on the corresponding third return pipe of subscriber unit is closed, and the corresponding main return water of subscriber unit by the water temperature greater than 8 DEG C is done
The two paths of three-way valve on pipe are all closed, and execute following procedure in subscriber unit of the water temperature greater than 8 DEG C:
Valve on water supply branch pipe, the second return branch is opened, and the three-way valve on the first mixed water pipe is according to conventional end institute
The supply and return water temperature needed is proportionally opened；Conventional end and the operation of big temperature difference end, large-scale energy source station is to big temperature difference end
Low-temperature cold water is directly supplied, and by supplying room temperature cold water to conventional end after the mixed water of the first mixed water pipe；Secondary user is single simultaneously
Member is disconnected with level-one water segregator and level-one water recovery apparatus, and the water pump on energy Island, dry coils and dry type end is opened, and second level is used
Family unit works independently；
Threeway when the part in all subscriber units, which lets cool the water temperature in circulation, is both greater than 8 DEG C, on main return water main pipe
It connection and is disconnected with the backwater section of third return water main pipe before and after fully open to the main return water main pipe of valve, the in all subscriber units
The valve of closing in two return branch, the second backwater end of large-scale energy source station is closed, and system is switched to conventional operating condition.
The process that secondary user's unit works independently are as follows: the water pump on energy Island, dry coils and dry type end is opened,
Triple valve supply and return water temperature according to needed for dry coils on second mixed water pipe is proportionally opened, energy Island, coil pipe and dry
The operation of formula end, energy Island is independently let cool to dry coils and dry type end or heat release.
When secondary user's unit works independently, independently let cool in summer control method, it is independent in control method in winter
Heat release.
There is provided high temperature cold water when energy Island is let cool, when energy Island heat release provides low-temperature water heating.
Embodiment 4:
The present embodiment provides a kind of control method for letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, should
Method lets cool the dispersible independently operated large-scale centralized air-conditioning system of control using as described in example 1 above.This method according to
Environment locating for the unit of family is summer, winter and conditioning in Transition Season, provides corresponding control method；The environment locating for the subscriber unit is
When winter, using winter control method, the winter control method are as follows:
Operating condition one: conventional operating condition:
The open and close state of water pump and valve and the summer in the conventional operating condition of the winter control method
Water pump is identical with the open and close state of valve in the conventional operating condition of control method；
Large-scale energy source station is supplied to the direct supplying high temperature hot water in big temperature difference end, and by the first mixed water pipe to conventional end
It gives；
Secondary user's unit and level-one water segregator and level-one water recovery apparatus disconnect simultaneously, energy Island, dry coils and dry type end
Water pump on end is opened, and secondary user's unit works independently；
Operating condition two, Smaller load operating condition:
In the Smaller load operating condition of the winter control method open and close state of water pump and valve with it is described
Summer control method Smaller load operating condition in water pump it is identical with the open and close state of valve；
Large-scale energy source station stops supplying conventional end, big temperature difference end to subscriber unit supplying high temperature hot water, energy Island heat release
End, dry coils and dry type end.
Embodiment 5:
The present embodiment provides a kind of control method for letting cool the dispersible independently operated large-scale centralized air-conditioning system of control, should
Method lets cool the dispersible independently operated large-scale centralized air-conditioning system of control using as described in example 1 above.This method according to
Environment locating for the unit of family is summer, winter and conditioning in Transition Season, provides corresponding control method；The environment locating for the subscriber unit is
When conditioning in Transition Season, using conditioning in Transition Season control method, the conditioning in Transition Season control method are as follows:
The open and close state of water pump and valve and the summer control method in the conditioning in Transition Season control method
Smaller load operating condition in water pump it is identical with the open and close state of valve；
Large-scale energy source station stops supplying low-temperature cold water or high-temperature-hot-water to subscriber unit, and energy Island is let cool or heat release, supply
Conventional end, big temperature difference end, dry coils and dry type end.
Claims (7)
1. one kind lets cool the dispersible independently operated large-scale centralized air-conditioning system of control, including large-scale energy source station (1), the large-scale energy
Stand (1) be connected with subscriber unit (3) by transmission and distribution network (2), which is characterized in that along journey distribution on the transmission and distribution network (2)
Multiple subscriber units (3)；
The transmission and distribution network (2) include it is parallel it is cricoid it is main for water conduit tube (201), cricoid main return water main pipe (202), ring
Second return water main pipe (203) of shape and multiple third return water main pipes (204), large-scale energy source station (1) for water end (W.E.) (101) and main confession
Water conduit tube (201) is connected, and the backwater end (102) of large-scale energy source station (1) is connected with main return water main pipe (202), large-scale energy source station (1)
The second backwater end (103) be connected with the second return water main pipe (203)；
The large-scale energy source station (1) for being equipped with water pump (10) on water end (W.E.) (101)；
The large-scale energy source station (1) for being provided with and communicated with the first bypass pipe between water end (W.E.) (101) and backwater end (102)
(104)；For water end (W.E.) (101) the first bypass pipe (104) junction be located at on water end (W.E.) (101) water pump (10) and it is main supply water do
It manages between (201)；
The main return water main pipe (202) and the second return water main pipe (203) are farthest from the first bypass pipe (103) installation site
The second bypass pipe (205) are provided with and communicated at position；
The third return water main pipe (204) is divided into water supply section (2041) and backwater section (2042), the water supply section (2041)
One end be connected with main return water main pipe (202), between one end of the backwater section (2042) and main return water main pipe (202) lead to
Cross three-way valve (12) connection；
Temperature sensor (13) and valve (11) are provided in the water supply section (2041), the backwater section is set on (2042)
It is equipped with valve (11)；
The other end of the water supply section (2041) is connected with the level-one water segregator (301) of subscriber unit (3), the return water
The other end of section (2042) is connected with the level-one water collector (302) of subscriber unit (3)；
The third return water main pipe (204) and subscriber unit (3) corresponds, and third return water main pipe (204) is in the second return water
It is successively laid on main pipe (202) along the laying order of subscriber unit (3)；
Between connected third return water main pipe (204) the water supply section (2041) of the same subscriber unit (3) and backwater section (2042)
The water supply section (2041) of other subscriber units (3) connected third return water main pipe (204) is not laid on second return water main pipe (202)
With backwater section (2042)；
The subscriber unit (3) includes level-one water segregator (301) and level-one water collector (302), and level-one water segregator (301) passes through
Water supply branch pipe (303) is connected with the main of transmission and distribution network (2) for water conduit tube (201), and the level-one water collector (302) passes through the
One return branch (304) is connected with the main return water main pipe (202) with transmission and distribution network (2)；
The level-one water segregator (301) also passes through the main for water conduit tube (202) phase of accumulation of energy branch pipe (305) and transmission and distribution network (2)
Connection；
The level-one water collector (302) also passes through the second return branch (306) and the second return water main pipe with transmission and distribution network (2)
(203) it is connected；
Conventional end (4), big temperature difference end have been installed in parallel between the level-one water segregator (301) and level-one water collector (302)
Hold (5) and secondary user's unit (6)；
Secondary user's unit (6) includes secondary water segregator (601) and second level water collector (602), secondary water segregator (601)
It is connected with level-one water segregator (301) by second level water supply branch pipe (603), second level water collector (602) and level-one water collector (302) are logical
It crosses second level return branch (604) to be connected, has been installed in parallel energy Island between secondary water segregator (601) and second level water collector (602)
(7), dry coils (8) and dry type end (9).
2. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
Parallel communication is provided with the first mixed water pipe (307) on the conventional end (4) stated；Parallel communication is set on the dry coils (8)
It is equipped with the second mixed water pipe (605).
3. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
Be equipped with water pump (10) on the accumulation of energy branch pipe (305) stated, the conventional end (4), big temperature difference end (5), energy Island (7),
Water pump (10) are in series on dry coils (8) and dry type end (9).
4. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
It is respectively provided in water supply branch pipe (303), the first return branch (304), accumulation of energy branch pipe (305) and the second return branch (306) stated
There are valve (11)；
Valve (11) are provided on the second level water supply branch pipe (603) and the first return branch of second level (604)；
Three-way valve (12) are provided on the mixed water pipe of described first (307) and the second mixed water pipe (605).
5. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
Valve (11) are provided on the first bypass pipe (104) and the second bypass pipe (206) stated.
6. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
The large-scale energy source station (1) stated for being provided with valve (11) between the water pump (10) and large-scale energy source station (1) on water end (W.E.) (101).
7. letting cool the dispersible independently operated large-scale centralized air-conditioning system of control as described in claim 1, which is characterized in that institute
Valve (11) are provided in the backwater end (102) and the second backwater end (103) of the large-scale energy source station (1) stated.
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| CN201811086941.6A CN109059155B (en) | 2018-09-18 | 2018-09-18 | Large-scale centralized air conditioning system capable of cooling and decentralized controlling independent operation |
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| CN201811086941.6A CN109059155B (en) | 2018-09-18 | 2018-09-18 | Large-scale centralized air conditioning system capable of cooling and decentralized controlling independent operation |
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| CN109059155B CN109059155B (en) | 2024-04-09 |
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