CN104776636B - More unstable Cooling and Heat Source air conditioning heat supply turbid water system and its cold and heat supply method - Google Patents
More unstable Cooling and Heat Source air conditioning heat supply turbid water system and its cold and heat supply method Download PDFInfo
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- CN104776636B CN104776636B CN201510167367.7A CN201510167367A CN104776636B CN 104776636 B CN104776636 B CN 104776636B CN 201510167367 A CN201510167367 A CN 201510167367A CN 104776636 B CN104776636 B CN 104776636B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- Thermal Sciences (AREA)
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- Air Conditioning Control Device (AREA)
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Abstract
The invention discloses a kind of how unstable Cooling and Heat Source air conditioning heat supply turbid water system and its cold and heat supply method, it is related to field of heating ventilation air conditioning.The system：User side circulation, n water-water jet and n cold and heat source system；N water-water jet is arranged in series on the user side circulation pipe of the user side circulation, any one of cold and hot source of water-water jet connects a cold and heat source system for return pipe.The method：The magnitude relationship of the total load M that the cold and hot amount summation N that the current all unstable cold and heat source systems of total load → judgement that user side is obtained from user side circulation to be needed are provided needs with user side → since lowest quality energy cold and heat source system is provided, cold and heat source system is opened successively, untill the cold and hot total amount of the cold and heat source system offer opened is identical with the total load that user side needs.The present invention realize independent control between cold and heat source system and user side recirculated water, on demand the load of adjustment Cooling and Heat Source, make full use of low-grade Cooling and Heat Source.
Description
Technical field
The present invention relates to field of heating ventilation air conditioning, more particularly to a kind of how unstable Cooling and Heat Source air conditioning heat supply turbid water system
And its cold and heat supply method.
Background technology
The utilization for reducing fossil energy substantially has three approach：Change human life style；Improve energy utilization rate；Improve clear
Clean energy utilization rate；And the approach of energy utilization rate is improved in addition to device efficiency is improved, more importantly by the repetition of the energy
Utilize to improve total system energy utilization rate, wherein " used heat " utilization should be one of energy recycling major way.
It is well known to those expert in the art that clean energy resource can be recovered after referring to reproducible, consumption, or it is non-renewable through clean
The energy of net technical finesse, wherein, regenerative resource includes:Solar energy, wind energy, geothermal energy, air energy, water energy, biomass
Can etc..Analysis understand, solar energy, wind energy, air energy, water energy etc. are the unstable energy, its with the time, season, weather change,
The energy value for not only being provided is in fluctuation, and the grade of energy is also very unstable.In addition, equally also belonging to not as " used heat " of the energy
The stabilization energy, " used heat " amount such as in sewage changes with the fluctuation of the discharge capacity and temperature of sewage.Heat supplying air conditioning field, due to
The unstability of the above-mentioned energy, cannot meet technique or comfortableness requirement in a certain system by the way of the single energy,
Regarding to the issue above, there are various cold-heating systems in the prior art, but these systems also have the following disadvantages：
1st, wet-bulb temperature condition is according to chilled water outside cooling tower cooling room in Cooling Tower for Air conditioning System free cold supply system
What supply water temperature (system minimum temperature) determined, necessarily cause (the usual wet-bulb temperature 7 in the case where outdoor wet-bulb temperature is very low
Below DEG C) free cold supply could be realized, greatly reduce the time period of free cold supply.And when outdoor wet-bulb temperature close to design work
It is to ensure system stabilization when condition and adjoint larger fluctuation, often using refrigeration machine cooling, this virtually reduce further cooling
Outdoor wet-bulb temperature under tower free cold supply operating mode.Chilled water supply backwater temperature difference is general more than 5 DEG C, and 10 DEG C of supply water temperature is returned
Coolant-temperature gage can be more than 15 DEG C.If carrying out Pre-cooling Mode to chilled water backwater using cooling tower, can significantly extend cooling tower
The cooling period simultaneously expands application region.Unlatching refrigerator is needed further to lower the temperature the chilled water after precooling under this operating mode.Should
Cooling Tower for Air conditioning System free cold supply system cannot realize this function.
2nd, auxiliary thermal source is series in heating network in solar heating system, increases resistance of pipe system, increases heating circulation
The lift of pump, does not apply in the case of many auxiliary thermal sources.In the case of heating circulation system variable-flow, some auxiliary thermal sources are not
Can normally be run under low discharge.When solar energy meets heating needs, when being not required to auxiliary thermal source heating water being heated, heating circulation
Water still flows through auxiliary thermal source.In some systems and accumulation of heat is not needed, heat-accumulator tank then belongs to unnecessary equipment.
The content of the invention
Supplied it is an object of the invention to provide a kind of how unstable Cooling and Heat Source air conditioning heat supply turbid water system and its cooling
Thermal means, so as to solve foregoing problems present in prior art.
To achieve these goals, the how unstable Cooling and Heat Source air conditioning heat supply turbid water system of the present invention, the system includes：
User side circulation, n water-water jet and n cold and heat source system；Circulated in the user side of the user side circulation
N water-water jet is arranged in series on pipe, the cold and hot source of any one of water-water jet is for connecting a Cooling and Heat Source system on return pipe
System；Wherein, the n is more than or equal to 2.
Preferably, the cold and heat source system includes stablizing cold and heat source system and unstable cold and heat source system, wherein, it is described steady
The quantity for determining cold and heat source system is at least 1, and has 1 stabilization cold and heat source system to stablize controllable cold and heat source system.
It is highly preferred that the thermal source that unstable cold and heat source system is provided includes：Solar energy, wind energy, using wasted energy and air
Energy.
Preferably, the water-water jet of connection offer lowest quality energy cold and heat source system is cold to connection offer most high-grade energy
The water-water jet of heat source system is sequentially connected in series on the user side circulation pipe, wherein, the connection provides low-grade energy
Backwater end of the water-water jet of cold and heat source system near user side circulating water pipe；
It is highly preferred that the most high-grade energy cold and heat source system is to stablize controllable cold and heat source system.
Preferably, it is respectively provided with a temperature sensor at any one water-water jet user side circulating water outlet.
Preferably, the water-water jet includes closed energy storage water tank and the pipeline section bigger than hot and cold water backflow pipe diameter.
Preferably, one is set on the cold and hot source feed pipe that the Cooling and Heat Source interface end with any one water-water jet is connected
Temperature sensor.
Cold and heat supply method of the present invention based on how unstable Cooling and Heat Source air conditioning heat supply turbid water system, methods described is pressed
Realized according to following step：
S1, obtains the total load that user side needs from user side circulation；
S2, judges the total load M that the cold and hot amount summation N that current all unstable cold and heat source systems are provided needs with user side
Magnitude relationship；
If N >=M, into S3；
If N ＜ M, into S4；
Since S3, providing lowest quality energy cold and heat source system, open cold and heat source system successively, cold and hot until what is opened
Untill the cold and hot total amount of origin system offer is identical with the total load that user side needs；
S4, open except provide most high-grade energy stablize controllable cold and heat source system in addition to other cold and heat source systems, then
Open provide most high-grade energy stablize controllable cold and heat source system until supply user side needs total load untill.
Preferably, open and adjust that stablize controllable cold and heat source system to provide cold and hot total amount to user side circulation be M-
N。
The beneficial effects of the invention are as follows：
1st, between each Cooling and Heat Source and between user side recirculated water flow control be completely independent, i.e. G, g1 ... between gn-1, gn
Onrelevant.
2nd, Cooling and Heat Source can flexibly add unloading, and the load of each Cooling and Heat Source can be at any time adjusted according to efficiency of energy utilization.
3rd, Cooling and Heat Source can be arranged by energy grade, and user side backwater first flows through low-grade Cooling and Heat Source, then flow through successively compared with
High-grade Cooling and Heat Source, makes full use of low-grade Cooling and Heat Source.
4th, a controllable source is only needed to play a part of control user side supply water temperature (T1) in multiple Cooling and Heat Sources, other sources can
Source is not controlled for controllable source or, it can be unstable source that source is not controlled.
Brief description of the drawings
Fig. 1 is the structural representation that this uses new how unstable Cooling and Heat Source air conditioning heat supply turbid water system；
Wherein, 1 the first water-water jet is represented, 1R to be represented and represent measurement the first water-water jet output with the first cold and heat source system, 1W
The temperature sensor of heat source temperature, 1RW represents that the first cold and heat source system of measurement exports the temperature sensor of heat source temperature；
N-1 represents the (n-1)th water-water jet, and (n-1) R represents the (n-1)th cold and heat source system；
N represents the n-th water-water jet, and nR represents the n-th cold and heat source system；
X represents user side circulation；
T1 represents that user side circulation exports the temperature of thermal source, and T2 indicates entry into the thermal source of user side circulation
Temperature, G represents the flow of hot and cold water return duct；
T1 represents that the first water-water jet exports the temperature of thermal source, and tn-1 represents that the (n-1)th water-water jet exports the temperature of thermal source, tn-2
The temperature that thermal source is exported with the n-th -2 water-water jet is represented, tn represents that the n-th water-water jet exports the temperature of thermal source；
G1 represents the flow of the Cooling and Heat Source return duct being connected with the first cold and heat source system, and gn-1 is represented and the (n-1)th Cooling and Heat Source
The flow of the Cooling and Heat Source return duct of system connection；Gn represents the flow of the Cooling and Heat Source return duct being connected with the n-th cold and heat source system,
T ' 1 represents the heat source temperature of the 1st cold and heat source system output, and t ' n-1 represent the thermal source of the (n-1)th cold and heat source system output
Temperature, t ' n represent the heat source temperature of the n-th cold and heat source system output；
Fig. 2 is that the data center module and office building of certain data center are connected using system combined cooling heating structure of the present invention
Connect schematic diagram；
11 represent data center module air conditioner, and 12 represent data center module air-conditioning water-circulating pump, and 13 represent that data center module cold is cold
Freeze water-circulating pump, 14 represent data center module cold cooling water circulating pump, and 15 represent office building heat pump refrigerating side circulating pump, and 16 represent
Office building heat pump heat supply side circulating pump, 17 represent office building air-conditioning water-circulating pump, and 18 represent circulation pump of boiler hot water；11-1 is represented
Water-water jet A, 11-2 represent that water-water jet B, 11-3 represent water-water jet C；
20 expression office building heating plates are changed, and 21 represent office building source pump, and 22 represent data center module cold, and 23 represent number
Changed according to computer room free cold supply plate；
100 represent boiler, and 101 represent water-water jet D, and 102 represent office's air conditioning terminal；
31 represent data center module cooling tower A, and 32 represent data center module cooling tower B, and 33 represent data center module cooling tower C, 34
Represent that data center module cooling tower D, a represent the first valve, b represents the second valve.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.It should be appreciated that specific embodiment described herein is only used to explain the present invention, it is not used to
Limit the present invention.
Embodiment 1
Reference picture 1, how unstable Cooling and Heat Source air conditioning heat supply turbid water system described in the present embodiment, system includes：
User side circulation, n water-water jet and n cold and heat source system；Circulated in the user side of the user side circulation
N water-water jet is arranged in series on pipe, the cold and hot source of any one of water-water jet is for connecting a Cooling and Heat Source system on return pipe
System；Wherein, the n is more than or equal to 2.
In the present embodiment, the cold and heat source system includes stablizing cold and heat source system and unstable cold and heat source system, wherein, institute
The quantity for stating stabilization cold and heat source system is at least 1, and has 1 stabilization cold and heat source system to stablize controllable Cooling and Heat Source system
System.The thermal source that unstable cold and heat source system is provided includes：Solar energy, wind energy, using wasted energy and air energy.
In the present embodiment, the water-water jet that connection provides lowest quality energy cold and heat source system provides highest grade energy to connection
The water-water jet of source cold and heat source system is sequentially connected in series on the user side circulation pipe, wherein, the connection provides low-grade
Backwater end of the water-water jet of energy cold and heat source system near user side circulating water pipe；The most high-grade energy cold and heat source system is
Stablize controllable cold and heat source system.
In the present embodiment, a temperature sensor is respectively provided with any one water-water jet user side circulating water outlet.It is described
Water-water jet includes closed energy storage water tank and the pipeline section bigger than hot and cold water backflow pipe diameter.In the Cooling and Heat Source with any one water-water jet
A temperature sensor is set on the cold and hot source feed pipe of interface end connection, cold and hot source feed pipe, is by cold and heat source system
To the pipeline that water-water jet supplies water.
Principle of the invention is：Each cold and heat source system extracts user side EGR by water-water jet (or cold-storage and thermal storage tank)
In recirculated water, refrigeration heating after recirculated water is transmitted back to by cold and hot user side circulation by water-water jet, while convey it is cold
In heat to user side circulation, each cold and heat source system conveys cold and hot amount sum and consumes total cold and hot amount equal to user.
Using the cold and heat supply method of how unstable Cooling and Heat Source air conditioning heat supply turbid water system, the side in the present embodiment
Method is realized as steps described below：
S1, obtains the total load M that user side needs from user side circulation；
S2, judges the total load M that the cold and hot amount summation N that current all unstable cold and heat source systems are provided needs with user side
Magnitude relationship；
If N >=M, into S3；
If N ＜ M, into S4；
Since S3, providing lowest quality thermal source cold and heat source system, open cold and heat source system successively, cold and hot until what is opened
Untill the cold and hot total amount of origin system offer is identical with the total load that user side needs；
S4, open except provide highest grade thermal source stablize controllable cold and heat source system in addition to other cold and heat source systems, then
Open provide highest grade thermal source stablize controllable cold and heat source system until supply user side needs total load untill, specifically
For：The controllable cold and heat source system of stablizing for opening and adjusting offer highest grade thermal source provides cold and hot total to user side circulation
It is M-N to measure.
Embodiment 2
Certain the data center's data center module of reference picture 2 and office building air conditioning heating structure connection diagram；The present embodiment
Certain described data center builds together three office buildings and a data center module.
Office building uses central air-conditioning system, and summer cooling heat supply in winter, summer design total refrigeration duty 7300Kw, winter sets
Meter total heat duties 4900Kw.Data center module needs cooling, refrigerated air-conditioning system to press the design of n+1 standards, overall design refrigeration duty throughout the year
27500Kw。
Due to data center module, heating season still needs to cooling in the winter time, while substantial amounts of heat dissipation is produced, the partial heat
Pipeline for gas can be substituted as the heating reservoir of office building, i.e. Waste Heat Reuse, reduce fossil energy and use.In addition, according to work as
Ground weather conditions, data center module winter cooling also can freely aid in cooling mode, reducing energy consumption using cooling tower.
Built in data center module early stage in view of office building, office building low-temperature receiver is not built jointly with data center module low-temperature receiver, and considers
Standby heat source after boiler room builds up as office building heating early stage thermal source and data center module is set.
Office building low-temperature receiver has selected three 2150Kw centrifuges and a 1230Kw screw machine altogether, is selected in three desk centrifuges
Two as source pump, to data center module cooling while heating to office building in the winter time.Data center module low-temperature receiver presses two machines
Room is respectively provided with, and the 50% of each computer room burden total refrigeration duty.Each computer room selects four 4570Kw centrifuges (three is standby with),
And one-to-one configuration cooling tower, chilled water circulating pump and cooling water circulating pump.Because office building winter thermic load is only equivalent to number
According to the 30% of the single cold group heat exhaust of computer room, office building source pump only need to take heat from one cold group of data center module.
Certain data center's data center module and the heating of office building air conditioning operational mode in the winter time are as follows：
1st, start office building heat pump when office building needs heating, heated simultaneously to data center module chilled water to office building
System cooling.Due to increased office building low-temperature receiver, data center module cold semen donors need to be accordingly reduced.Office building heat pump load is by supplying
Thermic load is controlled, and for data center module side, this low-temperature receiver is that uncontrollable low-temperature receiver, i.e. t ' are uncontrollable, therefore need to be by control data machine
Room cold realizes control supply water temperature T1.
2nd, while office building heats, weather conditions meet free cold supply of cooling column requirement, first start standby cooling tower
Free cold supply, reduces data center module cold semen donors.When having one or several cold stop cooling, what is be accordingly stopped is cold
But tower puts into free cold supply operating mode, and now cooling tower cooling category does not control low-temperature receiver, it is still necessary to by control data computer room cold reality
Now control supply water temperature T1.
3rd, outdoor dry bulb and wet bulb reduction to a certain extent when, free cold supply of cooling column amount and office building heat pump semen donors
Sum is more than data center module refrigeration duty, and now data center module cold is completely closed, and cooling tower cooling is changed into controllable low-temperature receiver, it is necessary to control
Cooling tower semen donors processed realize control supply water temperature T1 (T1=t2).
By using above-mentioned technical proposal disclosed by the invention, following beneficial effect has been obtained：
1st, between each Cooling and Heat Source and between user side recirculated water flow control be completely independent, i.e. G, g1 ... between gn-1, gn
Onrelevant.
2nd, Cooling and Heat Source can flexibly add unloading, and the load of each Cooling and Heat Source can be at any time adjusted according to efficiency of energy utilization.
3rd, Cooling and Heat Source can be arranged by energy grade, and user side backwater first flows through low-grade Cooling and Heat Source, then flow through successively compared with
High-grade Cooling and Heat Source, makes full use of low-grade Cooling and Heat Source.
4th, a controllable source is only needed to play a part of control user side supply water temperature (T1) in multiple Cooling and Heat Sources, other sources can
Source is not controlled for controllable source or, it can be unstable source that source is not controlled.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (2)
1. a kind of how unstable Cooling and Heat Source air conditioning heat supply turbid water system, it is characterised in that the system includes：User side is circulated
Water system, n water-water jet and n cold and heat source system；
N water-water jet, any one of mixed water are arranged in series on the user side circulation pipe of the user side circulation
The cold and hot source of device is for connecting a cold and heat source system on return pipe；
Wherein, the n is more than or equal to 2；
The cold and heat source system includes stablizing cold and heat source system and unstable cold and heat source system, wherein, the stabilization Cooling and Heat Source system
The quantity of system is at least 1, and has 1 stabilization cold and heat source system to stablize controllable cold and heat source system；
The thermal source that unstable cold and heat source system is provided includes：Solar energy, wind energy, using wasted energy and air energy；
The water-water jet that connection provides lowest quality energy cold and heat source system provides most high-grade energy cold and heat source system to connection
Water-water jet is sequentially connected in series on the user side circulation pipe, wherein, the connection provides low-grade energy cold and heat source system
Water-water jet near user side circulating water pipe backwater end；
The most high-grade energy cold and heat source system is to stablize controllable cold and heat source system；
A temperature sensor is respectively provided with any one water-water jet user side circulating water outlet；The water-water jet includes closed storage
Can water pot and the pipeline section bigger than hot and cold water backflow pipe diameter；
One temperature sensor is set on the cold and hot source feed pipe that the Cooling and Heat Source interface end with any one water-water jet is connected.
2. a kind of cold and heat supply method based on how unstable Cooling and Heat Source air conditioning heat supply turbid water system described in claim 1,
Characterized in that, methods described is realized as steps described below：
S1, obtains the total load that user side needs from user side circulation；
S2, judges that the cold and hot amount summation N that current all unstable cold and heat source systems are provided is big with the total load M that user side needs
Small relation；
If N >=M, into S3；
If N ＜ M, into S4；
Since S3, providing lowest quality energy cold and heat source system, open cold and heat source system successively, until the Cooling and Heat Source system opened
Untill the cold and hot total amount for providing of uniting is identical with the total load that user side needs；
S4, open except provide most high-grade energy stablize controllable cold and heat source system in addition to other cold and heat source systems, be then turned on
There is provided most high-grade energy stablize controllable cold and heat source system until supply user side needs total load untill；
It is M-N to open and adjust and stablize controllable cold and heat source system to provide cold and hot total amount to user side circulation.
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| CN201510167367.7A CN104776636B (en) | 2015-04-10 | 2015-04-10 | More unstable Cooling and Heat Source air conditioning heat supply turbid water system and its cold and heat supply method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107143948B (en) * | 2016-03-01 | 2021-06-01 | 王庆鹏 | Stepped cold and heat source system capable of storing energy and large temperature difference |
| CN106225310B (en) * | 2016-07-15 | 2018-08-14 | 荏原冷热系统（中国）有限公司 | A kind of control method of multi-heat source, device and absorption refrigeration unit |
| CN111178835B (en) * | 2019-12-25 | 2024-03-19 | 珠海格力电器股份有限公司 | System and method for assisting in generating cold and heat source scheme book |
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| KR20130128661A (en) * | 2012-05-17 | 2013-11-27 | 한국에너지기술연구원 | Connecting apparatus for return water heat system of district heating and solar system and heatpump system |
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| CN204555422U (en) * | 2015-04-10 | 2015-08-12 | 华通设计顾问工程有限公司 | Many unstable Cooling and Heat Source air conditioning heat supply turbid water system |
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- 2015-04-10 CN CN201510167367.7A patent/CN104776636B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556082A (en) * | 2009-05-11 | 2009-10-14 | 天津大学 | Hot water supply system by solar energy storage heat and ground source heat pump |
| KR20130128661A (en) * | 2012-05-17 | 2013-11-27 | 한국에너지기술연구원 | Connecting apparatus for return water heat system of district heating and solar system and heatpump system |
| CN102913992A (en) * | 2012-11-19 | 2013-02-06 | 山东威特人工环境有限公司 | Combined heat supply measurement and control optimization system and measurement and control method thereof |
| CN103471159A (en) * | 2013-09-09 | 2013-12-25 | 陈意军 | Novel energy-saving water system heating and cooling device |
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