CN110425761A - A kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method - Google Patents
A kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method Download PDFInfo
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- CN110425761A CN110425761A CN201910824677.XA CN201910824677A CN110425761A CN 110425761 A CN110425761 A CN 110425761A CN 201910824677 A CN201910824677 A CN 201910824677A CN 110425761 A CN110425761 A CN 110425761A
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- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000005457 optimization Methods 0.000 title claims abstract description 21
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000009825 accumulation Methods 0.000 claims abstract description 28
- 239000013078 crystal Substances 0.000 claims abstract description 21
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 230000008020 evaporation Effects 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 13
- 230000006835 compression Effects 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 12
- 238000004378 air conditioning Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000009977 dual effect Effects 0.000 abstract description 4
- 239000008236 heating water Substances 0.000 abstract description 4
- 239000008400 supply water Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control methods, Two-stage Compression, dynamic accumulation of energy and high temperature heat pump are combined, heat transfer process is optimized using extraction cycle, intercooler cooling, dual evaporation and B-grade condensation, autocontrol method is coupled on demand by timesharing, provides the accumulation of energy of dynamic ice crystal, cooling supply and high-temperature-hot-water service simultaneously for user.The present invention efficiently solves current same refrigeration unit cannot realize conventional refrigerant, dynamic accumulation of energy cooling supply and high-temperature heat supply water problems simultaneously, user is helped to realize a machine three-use, save user's refrigeration and heating equipment overlapping investment, the thermal efficiency of accumulation of energy cooling supply and heat supply is greatly improved, saves a large amount of air-conditionings, hot water investment and cost of use for user.It can be widely applied to air-conditioning and heating water and saving energy field.
Description
Technical field
The present invention relates to a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control methods, are related to air-conditioning and hot water
Field of energy-saving technology.
Background technique
In conventional refrigerant system, evaporator evaporation endothermic provides air-conditioning and freezing service for user, and condenser condensation is put
Heat provides heat supply service for user, due to the ratio between core component compressor air-discharging and the pressure of air inlet in refrigeration system, referred to as presses
Contracting ratio, its general value cannot be too big (general no more than 8), because compression ratio is excessive, it is excessively high to will lead to compressor exhaust temperature,
Compressor operating condition is severe, and unit service life is of short duration, therefore the refrigeration system for also just constraining single compressed can not be
User provides lower cold source and higher heat source simultaneously.
But people need a large amount of high-temperature-hot-waters (60 DEG C -85 DEG C) in many places, while often requiring cooling supply again, together
Shi Guojia advocates electric power peak load shifting energetically, puts into effect the preferential policy of electricity price between peak and valley, encourage people in process of refrigerastion as far as possible
It using ice energy accumulating technique, is used with reaching the optimization of electric power resource, therefore ice accumulation of energy is increasingly widely used in process of refrigerastion.
In addition ice accumulation of energy is divided into static ice storage and dynamic ice cold-storage, and dynamic ice cold-storage is due to being that ice slurry can be changed directly
Heat, more static ice storage elder generation solid-state ice-out exchange heat again, and refrigeration and heat exchanger effectiveness are higher, more energy saving.
Simultaneously because ice storage unit is such as out of service in non-electricity paddy section, then the idleness of equipment, wasting of resources situation are caused
Obviously;If allowing ice storage unit to be run in non-electricity paddy section, since there are the secondary exchange of cooling capacity and lower evaporations
Temperature, refrigerating efficiency are relatively low compared with conventional refrigerant unit, very uneconomical.
Therefore be badly in need of in the market the dynamic accumulation of energy of a machine three-use type a kind of, refrigeration, high temperature heating integrated energy-saving system and
Its control method, in the crest segment time on daytime completely using evening paddy section time dynamic ice-storage when the cooling capacity that is stored, in the flat section time
Using conventional refrigerant operating condition, while the energy conserving system of high-temperature-hot-water can be provided again under above two operating condition.
Summary of the invention
The technical problems to be solved by the invention are exactly to overcome above-mentioned the deficiencies in the prior art, and it is cold and hot to provide a kind of synthesis
Optimization of Energy Saving system and its control method are supplied in source.Two-stage Compression, dynamic accumulation of energy and high temperature heat pump are combined, followed using backheat
Ring, intercooler cooling, dual evaporation and B-grade condensation optimize heat transfer process, couple automatic control side on demand by timesharing
Method provides the accumulation of energy of dynamic ice crystal, cooling supply and high-temperature-hot-water service for user simultaneously.
The technical solution used in the present invention is:
A kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method include intercooler 2, regenerator 3, level-one pressure
Contracting machine 13, split-compressor 14, evaporator II11, evaporator I12, accumulation of energy case 7, high-temperature-hot-water case 16, first-stage condenser 15, two
Grade condenser 20, control component includes: bypass motor-driven valve 25, electric T-shaped valve I21, electric T-shaped valve II22, throttle valve
I4, throttle valve II5, flow control valve 24, variable-flow heat-exchanger pump 17, temperature sensor I26, cold-storage quantity sensor 27, time point
Paragraph controller 28.
The energy conserving system be provided with stage compressor 13, split-compressor 14,14 bypass circulation of split-compressor setting
There is motor-driven valve 25, stage compressor (13) is provided with time slice controller (28).
Throttle valve I4 throttle mechanism in parallel with throttle valve I5 composition refrigeration system, refrigerant can be respectively in evaporator
It is evaporated endothermic process in II11 and evaporator I12, to adapt to different cooling conditions.
The refrigerant can carry out condensation exothermic process in first-stage condenser 5, secondary condenser 20 respectively, to adapt to difference
Condensing condition.
The evaporator II11 is connected with regenerator 3 with the gas outlet evaporator I12, and refrigeration working medium is in regenerator 3
Enter 13 air inlet of stage compressor after preheating.
Described refrigerant working medium a part enters regenerator 3 after the cooling of intercooler 2, and a part is through intercooler
It is mixed after the evaporation of 1 reducing pressure by regulating flow of throttle valve with the exhaust of stage compressor 13.
The high-temperature-hot-water case 16 is connected through variable-flow heat-exchanger pump 17 with 15 secondary side of first-stage condenser, and cooling tower 18 passes through
Cooling pump 19 is connected with 20 secondary side of secondary condenser, and 16 bottom of high-temperature-hot-water case is equipped with temperature sensor I26.
The ice crystal solution 10 enters accumulation of energy case 7 after being sent into the cooling of evaporator II11 secondary side by ice crystal solution transfer pump 6
Crystal-phase transformation energy storage is carried out, 7 bottom of accumulation of energy case is equipped with cold-storage quantity sensor 27.
The ice crystal solution 10 is pumped into 9 primary side of ice-melt heat exchanger by ice-melt pump 8 and carries out heat absorption discharging cold course, ice-melt heat
9 secondary side of exchanger is separately installed with refrigerating water pump I23 and flow control valve 24.
The electric T-shaped valve I21, electric T-shaped valve II22 are primary with first-stage condenser 15 and secondary condenser 20 respectively
Side-entrance and respective bypass circulation import are connected.
The beneficial effects of the present invention are: the invention discloses a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its controls
Method combines Two-stage Compression, dynamic accumulation of energy and high temperature heat pump, using extraction cycle, intercooler cooling, dual evaporation
And B-grade condensation optimizes heat transfer process, couples autocontrol method on demand by timesharing, provides dynamic ice crystal storage simultaneously for user
Energy, cooling supply and high-temperature-hot-water service.The present invention efficiently solve current same refrigeration unit cannot realize simultaneously conventional refrigerant,
Dynamic accumulation of energy cooling supply and high-temperature heat supply water problems help user to realize a machine three-use, save user's refrigeration and heating equipment repeats
Investment, greatly improves the thermal efficiency of accumulation of energy cooling supply and heat supply, saves a large amount of air-conditionings, hot water investment and cost of use for user.It can
It is widely used in air-conditioning and heating water and saving energy field.
Detailed description of the invention
Fig. 1 is that a kind of comprehensive Cooling and Heat Source of the embodiment of the present invention supplies Optimization of Energy Saving system and its control method schematic diagram；
In figure:
Intercooler throttle valve (1) intercooler (2) regenerator (3) throttle valve I(4) throttle valve II (5) ice crystal solution is defeated
Pump (6) accumulation of energy case (7) ice-melt is sent to pump (8) ice-melt heat exchanger (9) ice crystal solution (10) evaporator II(11) evaporator I(12) one
Grade compressor (13) split-compressor (14) first-stage condenser (15) high-temperature-hot-water case (16) variable-flow heat-exchanger pump (17) cooling tower
(18) cooling pump (19) secondary condenser (20) electric T-shaped valve I(21) electric T-shaped valve II(22) refrigerating water pump I (23) flow tune
Save valve (24) bypass motor-driven valve (25) temperature sensor I (26) cold-storage quantity sensor (27) time slice controller (28).
Specific embodiment
As shown in Figure 1, a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system of the present embodiment and its control method, specific implementation
Mode is as follows:
Conventional refrigerant heats the course of work: refrigerant gas to electric T-shaped valve I21, and electric T-shaped valve I21 main road is opened at this time,
Bypass is closed, and refrigerant gas enters 15 primary side of first-stage condenser and carries out sufficiently exothermic condensation, and liquid refrigerant out is extremely
Electric T-shaped valve II22, at this time electric T-shaped valve II22 main road close, bypass open, refrigerant without secondary condenser 20 from
Bypass passes through, and then a part of liquid refrigerant becomes cryogenic gas through 1 reducing pressure by regulating flow of intercooler throttle valve refrigeration, with one
Grade compressor 13 is vented hybrid cooling；Another part liquid refrigerant, which is directly entered after intercooler 2 cools down, enters regenerator
3, further cool down in regenerator 3 with after being exchanged heat by the cryogenic gas after evaporator evaporation, then throttle and drop through throttle valve II5
Enter evaporator I12 after pressure, throttle valve I4 and evaporator II11 are in off position at this time.Liquid refrigerant is in evaporator
In I12 sufficiently heat absorption evaporation become gaseous state, into regenerator 3 preheat heat up, then to stage compressor 13 carry out one stage of compression,
Enter split-compressor 14 again after the refrigerant gas hybrid cooling that medium temperature and medium pressure gas and intercooler 2 come out after compression
Compression, bypass motor-driven valve 25 is closed at this time, and refrigerant becomes high temperature and high pressure gas after second-compressed, send to electric T-shaped valve
I21 carries out condensation heat release into first-stage condenser 15, and triple valve I21 main road is opened at this time, and bypass is closed, so continuous circulation;
After chilled water enters evaporator I12 secondary side heat release cooling from A during this, from the end B outflow provide a user 7 DEG C or more it is cold
Freeze water to freeze.Cooling water is pumped into 15 secondary side of first-stage condenser through variable-flow heat-exchanger pump 17 from high-temperature-hot-water case 16 and sufficiently inhales
Refrigeration working medium condensation heat is received, heats to the temperature of high-temperature-hot-water needed for user, this system is being made after two-stage compression condenses
It can provide 60 DEG C of -85 DEG C of high-temperature-hot-waters while cold.
The dynamic accumulation of energy heating condition course of work: refrigerant gas to electric T-shaped valve I21, at this time electric T-shaped valve I21
Main road is opened, and bypass is closed, and refrigerant gas enters 15 primary side of first-stage condenser and carries out sufficiently exothermic condensation, liquid out
Refrigerant is to electric T-shaped valve II22, and electric T-shaped valve II22 main road is closed at this time, and bypass is opened, and refrigerant is cold without second level
Condenser 20 passes through from bypass, and then a part of liquid refrigerant becomes low temperature through 1 reducing pressure by regulating flow of intercooler throttle valve refrigeration
Gas, the refrigerant gas hybrid cooling exported with stage compressor 13；Another part liquid refrigerant is directly entered intermediate cold
But enter regenerator 3 after device 2 cools down, in regenerator 3 and by further dropping after the cryogenic gas heat exchange after evaporator evaporation
Temperature enters evaporator II11 after throttle valve II4 reducing pressure by regulating flow, and throttle valve I5 and evaporator I12 are in off position at this time.
Liquid refrigerant becomes gaseous state after abundant absorption refrigeration in evaporator II11, into stage compressor 13 compress, after compression with
Enter the second compression again of split-compressor 14 after the refrigerant gas hybrid cooling that intercooler 2 comes out, at this time bypass motor-driven valve
25 close, and refrigerant gas enters first-stage condenser 15 to electric T-shaped valve I21 again and carries out condensation heat release after second-compressed, at this time
Triple valve I21 main road is opened, and bypass is closed, so continuous circulation;Ice crystal solution 10 during this in accumulation of energy case 7 is through ice
Brilliant solution transfer pump 6 is pumped into evaporator II11 secondary side, to the sufficiently exothermic cooling of refrigerant after become tiny pulpous state crystal, enter
Accumulation of energy case 7 carries out phase-change accumulation energy, which is slurry, directly can provide a user refrigerant service by ice-melt heat exchanger 9.
Cooling water is pumped into first-stage condenser 15 through variable-flow heat-exchanger pump 17 from high-temperature-hot-water case 16 and fully absorbs refrigeration working medium condensation heat,
It is heated to user's required temperature hot water.This system can provide 60 DEG C of -85 DEG C of high temperature after two-stage compression condenses while cold-storage
Hot water.
The cool thermal discharge course of work: tiny pulpous state crystal enters 9 primary side of ice-melt heat exchanger through ice-melt pump 8 and exchanges cooling capacity
Enter accumulation of energy case 7 afterwards, so constantly carries out ice-melt circulation.Chilled water return water is according to the size of supply water temperature from C, by flow tune
Chilled pump I23 enters 9 secondary side heat release of ice-melt heat exchanger drop to the water flow of section valve 24 adjusting major loop and bypass circulation again
Temperature provides a user refrigerant service from D, so constantly recycles, until cool thermal discharge process terminates.
The cooling tower course of work: it is heated in the course of work in the heating of above-mentioned conventional refrigerant with dynamic accumulation of energy, needed for user
When high-temperature-hot-water meets, electric T-shaped valve II22 bypass at this time is closed, and main road is opened, and cooling pump 19 brings into operation, cooling tower 18
It starts to work, then bypass motor-driven valve 25 is opened, and refrigerant gas passes through from the bypass of split-compressor 14, and split-compressor 14 is not
Work, while electric T-shaped valve I21 bypass is opened, main road is closed, and first-stage condenser 15 and heat-exchanger pump 17 stop working, refrigerant
Condensing heating water process switches to cooling tower radiation processes.
Different operating condition course of work progress control methods:
Dynamic ice-storage water heating process: time slice controller is set according to user peak Pinggu time, is opened in the paddy section time
When the beginning, variable-flow heat-exchanger pump 17, ice crystal solution transfer pump 6 bring into operation, and (value can be set as difference after the two is run T1 seconds
Value), electric T-shaped valve I21 main road is opened, and bypass is closed, and electric T-shaped valve II22 main road is closed, and bypass is opened, bypass motor-driven valve
25 close, and then stage compressor 13 starts running with split-compressor 14, intercooler energy-saving valve 1, throttle valve I4, ice crystal
Solution transfer pump 6 brings into operation, and throttle valve II5, flow control valve 24, ice-melt pump 8, cooling pump 19, refrigerating water pump I23, cooling tower
18 is out of service.When cold-storage quantity sensor 27, which provides ice storage amount, reaches setting value, whole system is out of service.
The dynamic ice-storage cooling tower heat dissipation course of work: it when the paddy section time starts, is used when temperature sensor I26 signal is fed back
When family hot water temperature reaches setting value, variable-flow heat-exchanger pump 17 is out of service at this time, and cooling pump 19, cooling tower 18 bring into operation,
Electric T-shaped valve II22 main road is opened, and bypass is closed, and electric T-shaped valve I21 main road is closed, and bypass is opened, then bypass motor-driven valve
25 open, and split-compressor 14 is out of service, and intercooler energy-saving valve 1, throttle valve I4, ice crystal solution transfer pump 6 are in work
Make state, throttle valve II5, flow control valve 24, ice-melt pump 8, refrigerating water pump I23 be in off working state, when cold-storage quantity sensor
When 27 offer ice storage amounts reach setting value, whole system is out of service.
Conventional refrigerant preparing high-temp hot water process: time slice controller is set according to user peak Pinggu time, flat
When the section time starts, variable-flow heat-exchanger pump 17 is started to work, chilled water starts the cycle over operation, (value after work T2 seconds at A
Can be set as different value), electric T-shaped valve I21 main road is opened, and bypass is closed, and electric T-shaped valve II22 main road is closed, bypass
It opens, then stage compressor 13, split-compressor 14 are started to work, and intercooler energy-saving valve 1, throttle valve II5 are in work
Make state, throttle valve I4, flow control valve 24, bypass motor-driven valve 25, cooling tower 18, cooling pump 19, ice crystal solution transfer pump 6,
Ice-melt pump 8, refrigerating water pump I23 are in off working state.
The conventional refrigerant cooling tower heat dissipation course of work: within the flat section time, when temperature sensor I26 reaches user's setting value
When, variable-flow heat-exchanger pump 17 is out of service at this time, and cooling pump 19, cooling tower 18 are opened, and electric T-shaped valve II22 main road is opened, other
Road is closed, and electric T-shaped valve I21 main road is closed, and bypass is opened, and then bypass motor-driven valve 25 is opened, and split-compressor 14 stops fortune
Row.Other control element intercooler energy-saving valves 1, throttle valve II5 are in running order at this time, and throttle valve I4, flow are adjusted
Valve 24, ice crystal solution transfer pump 6, ice-melt pump 8, refrigerating water pump I23 are in off working state.
The cool thermal discharge course of work: when the electric power crest segment time starts, ice-melt pumps 8, refrigerating water pump I23, flow control valve 24
It starts to work, other control elements all stop working at this time, when cold-storage quantity sensor 27, which provides ice storage amount release, finishes signal,
Cool thermal discharge process terminates.
The invention discloses a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control methods, by Two-stage Compression, move
State accumulation of energy and high temperature heat pump technology combine, and are optimized using extraction cycle, intercooler cooling, dual evaporation and B-grade condensation
Heat transfer process couples autocontrol method by timesharing on demand, provides the accumulation of energy of dynamic ice crystal, cooling supply and Gao Wenre simultaneously for user
Water service.The present invention efficiently solve current same refrigeration unit cannot realize simultaneously conventional refrigerant, dynamic accumulation of energy cooling supply and
High-temperature heat supply water problems helps user to realize a machine three-use, saves user's refrigeration and heating equipment overlapping investment, greatly improves storage
The thermal efficiency of energy cooling supply and heat supply saves a large amount of air-conditionings, hot water investment and cost of use for user.Can be widely applied to air-conditioning and
Heating water and saving energy field.
The above is not limitation of the present invention, and the present invention is also not limited to above embodiment, as long as at this
The variations, modifications, additions or substitutions made in the essential scope of invention should all belong to reach technical effect of the invention
In protection scope of the present invention.
Claims (10)
1. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method, it is characterised in that: including intercooler
(2), regenerator (3), stage compressor (13), split-compressor (14), evaporator II(11), evaporator I(12), accumulation of energy case
(7), ice crystal solution (10), high-temperature-hot-water case (16), first-stage condenser (15), secondary condenser (20), control component include:
Bypass motor-driven valve (25), electric T-shaped valve I(21) electric T-shaped valve II(22), throttle valve I(4), throttle valve II (5), flow tune
Save valve (24), variable-flow heat-exchanger pump (17), temperature sensor I(26), cold-storage quantity sensor (27), time slice controller
(28).
2. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: system is provided with stage compressor (13), split-compressor (14), split-compressor (14) bypass circulation and is provided with bypass electricity
Dynamic valve (25), stage compressor (13) are provided with time slice controller (28).
3. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: refrigeration system throttle mechanism throttle valve I(4) is collectively constituted with throttle valve II (5), refrigerant can be respectively in evaporator II(11)
With heat absorption is evaporated in evaporator I(12).
4. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: refrigerant can carry out condensation heat release in first-stage condenser (15), secondary condenser (20) respectively.
5. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: evaporator II(11) it is connected with the gas outlet evaporator I(12) with regenerator (3).
6. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 is it is characterized by: refrigerant working medium
A part enters regenerator (3) after intercooler (2) cool down, and a part is through intercooler throttle valve (1) throttling and evaporation
It is mixed afterwards with stage compressor (13) exhaust.
7. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 is it is characterized by: high-temperature-hot-water case
(16) it is connected through variable-flow heat-exchanger pump (17) with first-stage condenser (15) secondary side, cooling tower (18) is through cooling pump (19) and two
Grade condenser (20) secondary side is connected, and high-temperature-hot-water case (16) bottom is equipped with temperature sensor I (26).
8. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
Evaporator II(11 is sent by ice crystal solution transfer pump (6) in: ice crystal solution (10)) enter accumulation of energy case (7) after cooling, accumulation of energy case
(7) bottom is equipped with cold-storage quantity sensor (27).
9. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: ice crystal solution (10) is pumped into ice-melt heat exchanger (9) primary side by ice-melt pump (8) and carries out heat absorption discharging cold course, and ice-melt heat is handed over
Parallel operation (9) secondary side is separately installed with refrigerating water pump I (23), flow control valve (24).
10. a kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system according to claim 1 and its control method its feature exist
In: electric T-shaped valve I(21), electric T-shaped valve II(22) it is primary with first-stage condenser (15) and secondary condenser (20) respectively
Side refrigerant flows into end and respective bypass circulation input end is connected.
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Application publication date: 20191108 |