CN106871232A - A kind of control method of phase-transition heat-storage heating system - Google Patents
A kind of control method of phase-transition heat-storage heating system Download PDFInfo
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- CN106871232A CN106871232A CN201710067958.6A CN201710067958A CN106871232A CN 106871232 A CN106871232 A CN 106871232A CN 201710067958 A CN201710067958 A CN 201710067958A CN 106871232 A CN106871232 A CN 106871232A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 138
- 238000005338 heat storage Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 83
- 238000004146 energy storage Methods 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000009825 accumulation Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- 230000009466 transformation Effects 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 10
- 239000012782 phase change material Substances 0.000 description 8
- 230000033228 biological regulation Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000008400 supply water Substances 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007853 buffer solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
Abstract
A kind of control method of phase-transition heat-storage heating system, including central processing unit, memory, boilers heated electrically, heat reservoir and detection means;Central processing unit is connected with boilers heated electrically, heat reservoir, detection means and memory respectively;The control method includes following steps:S1:Accumulation of heat is carried out to heat reservoir by boilers heated electrically in the time of paddy electricity, the time heat reservoir of electricity carries out heat release at peak, calculates the after-heat Qs of boilers heated electrically;Heat Qx required for estimating current time to paddy electricity time started;Whether Qs is judged less than Qx, judged result is yes, boilers heated electrically is started immediately to carry out energy storage to heat reservoir or energy storage is carried out to heat reservoir in the low electricity price time period, and judged result is no, turns S1.Whole phase-transition heat-storage heating system is monitored, Precise control can be carried out to the startup time of boilers heated electrically, when a certain, when the shortage of heat of heat reservoir energy is with the use for maintaining user, compare ordinary telegram or paddy electricity time period in electricity price automatically carries out thermal storage and energy accumulation to heat reservoir.
Description
Technical field
The present invention relates to heating technology field, and in particular to a kind of control method of phase-transition heat-storage heating system.
Background technology
Required according to the Committee of Development and Reform, national more than 95% storage resident will be completed before the end of the year 2017 and closes table user transformation, entirely
Carry out residential electricity consumption time-of-use tariffs in face, it is desirable to put into effect political affairs before the end of the year 2015 in the area for not yet putting into effect residential electricity consumption time-of-use tariffs
Plan, is selected to perform by resident.I.e. national each province and city power supply administration will be to industry and commerce and ordinarily resident at daily 23 points to second
7 periods of its morning provide the preferential electricity price of 5 foldings, to encourage night electricity to consume, so as to improve each department supply of electric power department
Economic benefit, preferential night electricity price is progressively implemented obviously to have turned into trend of the times in China.
The maximum benefited party of time-of-use tariffs is electric heating, and thus its operating cost be greatly reduced, and whole heating market is therewith
There is a brand-new situation.Electric heating reliability, easy to use, economic, environmental protection, can to house provide high-quality temperature and
Comfortableness.
Existing high-temperature heat accumulation heating at present is all that sensible heat heat-storing material carries out energy storage by the change of temperature,
It is an alternating temperature process to store heat release, and thermal storage density is small, causes thermal storage equipment bulky, inefficient.
And phase-transition heat-storage heating is using material when phase (solid-liquid, solid-solid or liquid-gas) changes, to absorb or release and be big
The heat storage measured latent heat and carry out or release, the temperature of material is kept approximately constant in phase transition process.Low temperature phase change in utilization
Be stored in paddy electricity in phase-change material at night by material, is used to daytime heat.
Middle low-temperature phase-change material latent heat of phase change is big, is compared with water accumulation of heat, is equally heated to 85 degree, and its effective enthalpy is consubstantiality
3~6 times of ponding, efficient heat is largely focused between 70~80 degree, is especially suitable for the storage exothermic temperature of heating, stability
And long lifespan, energy-storage units can rush heat release more than 5000 times, more than 10 years Acceptable lifes can be ensured for heating, adapt to
Large, medium and small type heating user.
The patent document of Application No. 201520920362.2 discloses a kind of paddy electricity phase-transition heat-storage heating system, including stores
Hot systems, heating system and moisturizing buffer system;Hold over system includes being sequentially connected water pump, the first valve, the electricity for constituting loop
Boiler, the second valve, pressure sensor, the first temperature sensor, storage heater, the 3rd valve, filter, second temperature sensing
Device, flowmeter, the 4th valve;Heating system includes being sequentially connected storage heater, the 3rd valve, filter, second for constituting loop
Temperature sensor, flowmeter, the 4th valve, water pump, the 7th valve, the 9th valve, radiator, the tenth valve, the 8th valve, pressure
Force snesor, the first temperature sensor;Moisturizing buffer system includes expansion tank, the 5th valve, the 6th valve;Hold over system,
It is aqueous medium in heating system, moisturizing buffer system.In the invention, its pipeline and device layout are complex, are not easy to whole
The installation of individual system and equipment;In addition in heat-accumulating process is carried out to storage heater, whole system can not provide heating function, i.e., should
System is unfavorable for realizing round-the-clock heating.
The patent document of Application No. 201620099721.7 discloses a kind of phase-change energy storage equipment and combines with double electric boilers
Heating system, its main points is:Two valves, the first electric boiler and first circulation pumps are arranged on the first water-line;It also has
Second water-line, the first and second water-lines are in parallel;Phase-change energy storage equipment and second circulation pump are arranged on the second upper hose
On line, described phase-change energy storage equipment be the second electric boiler to, delivery port by respective threeway and heat exchanger tube constitute in return
Road, heat exchanger tube is placed in heat insulation tank, and phase-changing energy storage material is full of in heat insulation tank, and internal circulation pump is set in inner looping;Two three
Logical bypass is connected on the second water-line respectively as the water inlet and delivery port of phase-change energy storage equipment, in phase-change energy storage equipment
A valve is respectively set on second water-line of both sides.At this using in new, in order to solve round-the-clock heating problem, need to set
Two electric boilers, in heat-accumulating process is carried out to storage heater, an electric boiler provides heating to outside, and another electric boiler is then needed
Accumulation of heat individually is carried out to storage heater, the complexity of this pipeline for undoubtedly increasing whole system and device layout, while also increasing
The big input cost of equipment.
The content of the invention
The present invention is for the management for making full use of paddy electricity to be heated and become more meticulous to it, it is proposed that a kind of phase transformation stores
The control method of hot heating system.
In order to solve the above technical problems, technical scheme is as follows:A kind of controlling party of phase-transition heat-storage heating system
Method, the phase-transition heat-storage heating system includes heating cycle system, load cycle system, heating cycle system and load cycle system
System is exchanged heat by heat-exchanger rig;The heating cycle system includes boilers heated electrically, heating cycle power set, phase-transition heat-storage
Heat reservoir, isocon, the boilers heated electrically, heating cycle power set, phase-transition heat-storage heat reservoir, heat-exchanger rig pass sequentially through heat supply and follow
Endless tube road connects;Isocon is arranged on heating cycle pipeline, and in parallel with heat-exchanger rig;The outlet pipe of the heat-exchanger rig with
The junction of isocon is provided with parallel regulator;
The phase-transition heat-storage heating system also includes central processing unit, memory and detection means;Central processing unit respectively with
Boilers heated electrically, heat reservoir, detection means and memory are connected;Boilers heated electrically and heat reservoir are connected to detection means;
The control method includes following steps:
S1:Accumulation of heat is carried out to heat reservoir by boilers heated electrically in the time of paddy electricity, the time heat reservoir of electricity carries out heat release at peak, calculates electricity
The after-heat Qs of heat boiler, turns S2;
S2:Heat Qx required for estimating current time to paddy electricity time started, turns S3;
S3:Whether Qs is judged less than Qx, and judged result is yes, turns S4, and judged result is no, turns S1;
S4:Starting boilers heated electrically immediately carries out energy storage to heat reservoir or carries out energy storage to heat reservoir in the low electricity price time period.
In one embodiment, the specific method that the low electricity price time period in the step S5 carries out energy storage to heat reservoir is such as
Under:
S6 :The all of par period after using current time be ranked up from low to high according to electricity price after as a pointer
Queue, that minimum data of electricity price are pointed to by pointer head;The corresponding time period is found out according to minimum electricity price, turns S7;
S7:Power parameter according to current time, outdoor temperature and calorimeter is estimated the electricity price minimum time period and is also needed to
How many heat Q4, turn S8;
S8:Whether Q2 is judged more than Q4, and judged result is yes, turns S9, and judged result is no, the pointer head of queue is shifted to next
That minimum data of individual electricity price find out the corresponding time period as minimum electricity price according to minimum electricity price, turn S6;
S9:Start boilers heated electrically in the electricity price minimum time period carries out energy storage to heat reservoir.
Preferably, the output power control method of the boilers heated electrically in the step S9 is as follows:
S11:Current water temperature T is obtained by the temperature-detecting device of boilers heated electrically;
S12:Whether water temperature is judged in a state close to the boiling point of water, and judged result is yes, turns S13, judged result
It is no, turns S14;
S13:By the situation and the situation of temperature that export, the specified power reduction of electric boiler sets electric boiler overall power
Multiple heating valves are set to, the power of electric boiler is controlled by the number for opening heating valve;
S14:Boilers heated electrically persistently feeds water heating, increases over time, the rising of the temperature of water in electric boiler
In one embodiment, the phase-transition heat-storage heating system also includes cycle power device, and the cycle power device is
Water pump, the output power control method of the pump power is as follows:
S31:It is heat storage state to judge whether heat reservoir is located, and judged result is yes, turns S32, turns S33;
S32:The heat Q9, i.e. QZ=T9*Q9 for needing the heat QZ of accumulation of heat to be multiplied by the unit interval for thermal storage time T9;
S33:Heat in unit interval is transmitted as medium using the hot water heated by boiler, by flow parameter and water
The characteristic of pump selects a rational power output;
S34:Heat reservoir is in heat release state, and a rational output work is selected by user feedback temperature and with the characteristic of water pump
Rate.
Beneficial effect:
1., by the control method of boilers heated electrically, whole phase-transition heat-storage heating system is monitored, can be to boilers heated electrically
The startup time carries out Precise control, when a certain, when the shortage of heat of heat reservoir energy is with the use for maintaining user, automatically in electricity
Valency compares ordinary telegram or paddy electricity time period carries out thermal storage and energy accumulation to heat reservoir.
2. by controlling the power output of boilers heated electrically, the state of water temperature in boilers heated electrically close to the boiling point of water
When, multiple heating valves are set by electric boiler, by the specified power reduction of electric boiler, electricity is controlled by the number for opening heating valve
The power of boiler.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the present invention, the accompanying drawing to be used needed for embodiment will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of phase-transition heat-storage heating system of the present invention.
Fig. 2 is a kind of another structural representation of phase-transition heat-storage heating system of the present invention.
Fig. 3 is that a kind of heating cycle system of phase-transition heat-storage heating system of the present invention and the structure of heat-exchanger rig are shown
It is intended to.
Fig. 4 is that a kind of load cycle system of phase-transition heat-storage heating system of the present invention and the structure of heat-exchanger rig are shown
It is intended to.
Fig. 5 is phase-transition heat-storage heating system structured flowchart of the present invention.
Fig. 6 is the flow chart of the control method of phase-transition heat-storage heating system of the present invention.
Fig. 7 is the another flow chart of the control method of phase-transition heat-storage heating system of the present invention.
Fig. 8 is the flow chart of the output power control method of boilers heated electrically of the present invention.
Fig. 9 is the flow chart of the control method of pump power of the present invention.
Figure 10 is the flow chart of triple valve adjustment control method of the present invention.
Reference
1st, boilers heated electrically;2nd, heating cycle power set;21st, circuit checker;3rd, phase-transition heat-storage heat reservoir;31st, shunt valve;
32nd, heat reservoir inlet pressure detection means;33rd, heat reservoir inflow temperature detection means;34th, heat reservoir internal temperature detection means;35th, supply
Hot inflow temperature detection means;36th, heat reservoir water intaking valve;37th, heat reservoir outlet valve;38th, tube valve is bypassed;4th, isocon;5th, shunt
Adjuster;51st, mixing water temperature-detecting device;6th, flowmeter;7th, water replanishing device;8th, heat-exchanger rig;81st, heat supply return water temperature inspection
Survey device;82nd, heat supply pressure of return water detection means;83rd, outlet water temperature detecting device is loaded;84th, load return water temperature detection dress
Put;9th, load cycle power set;10th, heating plant.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not paid,
Belong to the scope of protection of the invention.
Embodiment 1
A kind of phase-transition heat-storage heating system, including heating cycle system, load cycle system, heating cycle system and load cycle
System is exchanged heat by heat-exchanger rig 8;Heating cycle system includes that boilers heated electrically 1, heating cycle power set 2, phase transformation store
Heat reservoir 3, isocon 4, the boilers heated electrically 1, heating cycle power set 2, phase-transition heat-storage heat reservoir 3, heat-exchanger rig 8 lead to successively
Cross the connection of heating cycle pipeline;Isocon 4 is arranged on heating cycle pipeline, and in parallel with heat-exchanger rig 8;The heat-exchanger rig
8 outlet pipe is provided with parallel regulator 5 with the junction of isocon 4.
Wherein, heating cycle system transfers heat to load cycle system as heat source system by heat-exchanger rig 8
In, heated from load cycle system to user.Load cycle pipeline is provided with load cycle system, in load cycle pipeline
On be provided with the heating plant 10 of load cycle power set 9 and user.
Under normal circumstances, the load cycle pipeline in the heating cycle pipeline of heating cycle system with load cycle system
It is interior, it is used as heat-carrying agent by aqueous medium.
The phase-transition heat-storage heat reservoir 3 is internally provided with phase-change material, and phase-change material is by the heat exchange in phase-transition heat-storage heat reservoir 3
Pipe is exchanged heat with the recirculated water in heating cycle pipeline, specifically, phase-change material includes crystalline hydrate salt, metal and alloy
One or more in class, paraffin class, non-paraffin organic, ceramic matric composite.
In addition, according to the distribution of electricity prices situation of paddy electricity, ordinary telegram and peak electricity in power network, the groundwork situation of the system is:
During paddy electricity process or ordinary telegram concurrent heating, boilers heated electrically 1 is heated to the recirculated water in heating cycle pipeline, and one
Aspect, heated recirculated water is by heat-exchanger rig 8 to load cycle system heat supply;On the other hand, due to isocon 4 and shunting
The setting of adjuster 5, this causes that an energy storage is constituted between boilers heated electrically 1, phase-transition heat-storage heat reservoir 3 and isocon 4 to be circulated, part
Heated recirculated water does not flow through the heat supply of heat-exchanger rig 8, and passing through isocon 4 carries out energy storage circulation, is the energy storage of phase-change material
Process provides an energy storage environment for higher heat, so as to realize phase-change material by being exchanged heat with recirculated water and continuously be stored up
The process of energy.So as to realize that phase-change material energy storage is carried out parallel with recirculated water heat exchange.
During peak electric process or the non-concurrent heating of ordinary telegram, boilers heated electrically 1 is closed, by phase transformation in phase-transition heat-storage heat reservoir 3
The energy of material storage is heated to recirculated water, so as to realize heat supply of the heating cycle system to load cycle system, is reached
All-weather heating;Simultaneously as the setting of isocon 4 and parallel regulator 5, is easy to the current for controlling to flow through heat-exchanger rig 8
Amount, i.e., during the heat supply of phase-transition heat-storage heat reservoir 3 is used, be easy to control what heating cycle system was provided to load cycle system
Calorie value, is smoothly load cycle system heat supply, it is ensured that the heating of supply user maintains a relatively stable temperature model
Enclose.
Within the system, paddy electricity, the electrovalence policy of peak electricity in power network are taken full advantage of, round-the-clock heating is not only realized,
And power network peak load shifting is also beneficial to, while reducing heating cost.
Embodiment 2
Reference picture 2-3, the heating cycle power set 2 have multi-level output power, are arranged on boilers heated electrically 1 and phase-transition heat-storage
Between heat reservoir 3, heating cycle power set 2 include at least two pump group parts that heating cycle pipeline is accessed with parallel way.Should
Structure, can be according to different rate periods and outside temperature by setting the heating cycle power set 2 with multi-level output power
Degree situation come adjust heating cycle power set 2 output total output, there is provided the circulation power matched with system requirements, no
The operating cost of heating system is only advantageously reduced, and during boilers heated electrically 1 is heated, it is therefore prevented that it is too late because circulating
When, heat saves bit by bit the occurrence of causing quick-fried pot in boilers heated electrically 1.
Meanwhile, when any one pump group part is repaired in heating cycle power set 2, in order to ensure the fortune of system
OK, heating cycle power set 2 any one pump group part water inlet and water outlet be provided with valve.
In the heating cycle system at least include a boilers heated electrically 1, any one boilers heated electrically 1 with water replanishing device 7
Connection, in order to moisturizing in heating cycle system.
The phase-transition heat-storage heat reservoir 3 is provided with heat reservoir water intaking valve 36 in water inlet, and phase-transition heat-storage heat reservoir 3 is in water outlet
It is provided with heat reservoir outlet valve 37.Heating cycle system also includes shunt valve 31, and the shunt valve 31 is arranged on heating cycle pipeline
On, and it is in parallel with phase-transition heat-storage heat reservoir 3, heat reservoir water intaking valve 36, heat reservoir outlet valve 37, bypass tube valve is provided with shunt valve 31
38.The setting of the shunt valve 31 and dependency structure, it is ensured that when being repaiied to phase-transition heat-storage heat reservoir 3-dimensional, heating system can be normal
Operation.
Heating cycle system also includes isocon 4, and the isocon 4 is arranged on heating cycle pipeline, and is filled with heat exchange
Put 8 in parallel.The delivery port of the heat-exchanger rig 8 is provided with parallel regulator 5, the shunt regulating with the junction of isocon 4
Device 5 is connected respectively at heating cycle pipeline with isocon 4, is flowed through isocon 4 for regulation and is flowed through the current of heat-exchanger rig 8
Amount.The setting of isocon 4, not only contributes to control what heating cycle system was supplied by heat-exchanger rig 8 to load cycle system
Heat, and ensure that phase-transition heat-storage heat reservoir 3 can be smoothly load cycle system heat supply in electricity price peak period.And shunt and adjust
Section device 5 is specially electric T-shaped valve, and this causes individually set regulation in the exit of isocon 4 and heat-exchanger rig 8
Valve, reduces the component count of whole system, is easy to regulate and control flow of the heating cycle pipeline at isocon 4 and heat-exchanger rig 8
Distribution, while during boilers heated electrically 1 is heated, by adjusting parallel regulator 5, increasing by the circulation of heat-exchanger rig 8
Water-carrying capacity, the occurrence of also prevent to some extent boilers heated electrically quick-fried pot.
In the present embodiment, the pipeline of the system and device layout are rationally, simple for structure to understand, the equipment of whole system is thrown
Enter it is relatively low, it is easy for installation, while also enhancing the security performance of whole system.
Embodiment 3
In order to realize the Intelligentized regulating and controlling of whole system, it is necessary to set multiple detection means in the system, specially:
Heat supply backwater temperature is disposed with heating cycle pipeline between the delivery port and parallel regulator 5 of heat-exchanger rig 8
Degree detection means 81, heat supply pressure of return water detection means 82 and flowmeter 6, for determining heating cycle system in, by heat exchange
Circulating water temperature, pressure and flow after the heat exchange of device 8;
Mixing water temperature-detecting device 51 is provided with heating cycle pipeline between parallel regulator 5 and boilers heated electrically 1, is used
In measure by the recirculated water after the heat exchange of heat-exchanger rig 8 and the mixed mixing water temperature of recirculated water by isocon 4;
The water outlet of heating cycle power set 2 is provided with the detection of heat reservoir inlet pressure detection means 32, heat reservoir inflow temperature
Device 33, pressure, temperature for determining the water pumped out through heating cycle power set 2;
On heating cycle pipeline, the water inlet of heat-exchanger rig 8 is provided with heat supply inflow temperature detection means 35, for determining
In heating cycle system, the circulating water temperature before being exchanged heat by heat-exchanger rig 8;
Heat reservoir internal temperature detection means 34 is provided with the phase-transition heat-storage heat reservoir 3, for determining in phase-transition heat-storage heat reservoir 3
Portion's temperature;
Circuit checker 21 is provided with heating cycle power set 2, is powered for being determined as heating cycle power set 2
Circuit information;
In load cycle system, the water outlet of heat-exchanger rig 8 is provided with load outlet water temperature detecting device 83, for determining
In load cycle system, the circulating water temperature after the heat exchange of heat-exchanger rig 8;
The water inlet of heat-exchanger rig 8 is provided with load return water temperature detection device 84, for determining in load cycle system,
Circulating water temperature before being exchanged heat by heat-exchanger rig 8.
Due within the system, during whole paddy electricity, all providing heat by boilers heated electrically 1;And in whole peak electricity mistake
Cheng Zhong, all provides heat by phase-transition heat-storage heat reservoir 3.So, due to the difference of outside heating environment, in order to avoid in peak electricity mistake
The shortage of heat that phase-transition heat-storage heat reservoir 3 is provided in journey, while further ensuring that the system can provide round-the-clock heating work(
Can, it is necessary to formulate an intelligent concurrent heating process during ordinary telegram.
Embodiment 4
Reference picture 5-7, the present embodiment is with the difference of embodiment 1-3, during the phase-transition heat-storage heating system also includes
Central processor, memory and detection means;Central processing unit respectively with boilers heated electrically, heat reservoir, detection means and memory
It is connected;Boilers heated electrically and heat reservoir are connected to detection means.The detection means can be the temperature for detection temperature
Meter, for the flowmeter or flowmeter of detection flows.
The detection means can also be the calorimeter how many for detecting boiler heat release.
A kind of control method of phase-transition heat-storage heating system, by estimating whether after-heat can meet the need that user heats
Ask control boilers heated electrically whether the energy storage of start completion heat reservoir.The control method includes the following aspects:
First, heat reservoir carries out electric power storage energy storage in the paddy electricity time of agreement, it is preferred that the paddy electricity time of agreement is 23 points of the previous day
To 6 points of the same day, after heat reservoir completes electric power storage energy storage, the state that morning heat reservoir can be set in being full of or close to being full of, one day
Central any time, when heat reservoir is presented the state for being full of or approaching and be full of, the total amount of heat that can be accommodated is certain, according to heat
Table releases how many heat, substantially can just calculate and know how many heat there remains, and we substantially can be according to current temperature
Degree situation also has the empirical data of our original consumption to also have the power data that calorimeter is above consumed to calculate, today about
Also need to how many heat before fixed paddy electricity process, the remaining and heat ratio that also needs to can learn remaining heat in heat reservoir
Whether amount disclosure satisfy that the use of user, and Current Temperatures refer to outdoor environment temperature, the empirical data before binding time, heat
The power parameter of table, calculating difference, outdoor environment temperature is entirely that dynamic data can be measured by thermometer.Such as, it is existing
It is being at 1 point in afternoon, is being estimated to evening at 11 points and also need to the heat of 60,000 million Jiao, but be only left the heat of 50,000 million Jiao now
, so the strategy for using is:In the afternoon the ordinary telegram period of 3-4 points, charged to boilers heated electrically carries out heat supplement to heat reservoir, leads to
Cross to estimate out a pump and drive two electric boilers and after-heat is filled, at 11 points in evening can be used after adding new heat, completely
Dynamically estimate how many heat also needed to.Present coal boiler or common electric boiler, all artificially control, by warp
Test, see that terminal temperature is enough, underaction.Control method of the present invention is 24 hours monitor in real time, automatically selects benefit
Strategy is repaid, heat compensation is carried out in the cheap period.
Specific flow is as follows:
S1:Accumulation of heat is carried out to heat reservoir by boilers heated electrically in the time of paddy electricity, the time heat reservoir of electricity carries out heat release at peak, calculates electricity
The after-heat Qs of heat boiler, turns S2;
S2:Heat Qx required for estimating current time to paddy electricity time started, turns S3;
S3:Whether Qs is judged less than Qx, and judged result is yes, turns S4, and judged result is no, turns S1;
S4:Starting boilers heated electrically immediately carries out energy storage to heat reservoir or carries out energy storage to heat reservoir in the low electricity price time period.
Wherein, Qx=a * Q2 * (- the t of T * 60)/T*60;
Qs = Q0 + E1 - Q1;
a:Temperature coefficient, obtains according to same day outdoor minimum temperature;T is the heating duration that heat reservoir is used alone daytime in theory;
T1:Heat reservoir inflow temperature;T2:Heat reservoir leaving water temperature;T3:Plate changes primary water temperature;T4:Mixing water temperature;V1:Heat
Table instantaneous delivery;V2:Total pipeline flow;E1:Heat reservoir fills calorific value;Q0:Heat reservoir to paddy electricity terminate when heat;Q1:From paddy
Electricity terminates the heat to current consumption;Q2:Heat required for theory paddy electricity terminates to next paddy electricity;Qs:Calculate
Heat reservoir after-heat;Qx:Heat required for current time to paddy electricity time started;Qf:Fill heat and stop threshold values;a:Temperature system
Number, obtains according to same day outdoor minimum temperature;t:It is worth from 7 points of minutes to current time of morning.In this embodiment, T
Unit is hour, normal according to existing electricity price, it is preferred that at 23 points in evening to 7 points of morning is chosen, during as paddy electricity
Between, it is heat reservoir energy storage, heat reservoir heating time on daytime is 16 hours, and T is 16.
V2 = V1*(T2 - T3)/(T2 - T4);Work as T1>During T2, E1=∑ V2 (T1-T2).
In this embodiment, it is preferred that in step S5, when Qs-Qx are more than Qf, shut down boilers heated electrically, heat reservoir
Accumulation of heat terminates.
The described low electricity price time period is as follows to specific method that heat reservoir carries out energy storage:
S6 :The all of par period after using current time be ranked up from low to high according to electricity price after as a pointer
Queue, that minimum data of electricity price are pointed to by pointer head;The corresponding time period is found out according to minimum electricity price, turns S7;
S7:Power parameter according to current time, outdoor temperature and calorimeter is estimated the electricity price minimum time period and is also needed to
How many heat Q4, turn S8;
S8:Whether Q2 is judged more than Q4, and judged result is yes, turns S9, and judged result is no, the pointer head of queue is shifted to next
That minimum data of individual electricity price find out the corresponding time period as minimum electricity price according to minimum electricity price, turn S6;
S9:Start boilers heated electrically in the electricity price minimum time period carries out energy storage to heat reservoir.
Embodiment 5
Reference picture 8, the output power control method of boilers heated electrically in a kind of phase-transition heat-storage heating system.
Boilers heated electrically carries out energy storage when paddy electricity to heat reservoir, in order to prevent water vapor, boilers heated electrically reclaimed water
Temperature upper limit is set to 93 or 95 degrees Celsius, and the peak power of boilers heated electrically is 1000kw, in boilers heated electrically heating process, temperature
Quickly it is raised and lowered, boilers heated electrically start-stop repeatedly can be caused in the short period of time, boilers heated electrically is easily damaged, system also pole
Its is unstable.
Based on above reason, the power of boilers heated electrically is needed to be adjusted, and the power output of boiler is controlled according to data.This
Sample system can accomplish even running.Electric boiler equipment will not start repeatedly, and the operating mode that can reach system operation is stablized relatively,
Boilers heated electrically can specify power, it is possible to specify multigroup heating valve, such as one group heating valve is 200kw, power output 1000kw
5 groups of heating valves are accomplished by, 4 groups of heating valves, such systematic comparison stabilization are needed when specifying power output 800kw.Specific electric heating
The power output of boiler needs to be calculated by heat time, desired temperature and the difference of existing temperature.
Specific control method is as follows:
S11:Current water temperature T is obtained by the temperature-detecting device of boilers heated electrically;
S12:Whether water temperature is judged in a state close to the boiling point of water, and judged result is yes, turns S13, judged result
It is no, turns S14;
S13:By the situation and the situation of temperature that export, multiple heating valves are set by electric boiler, by the specified work(of electric boiler
Rate reduction, the power of electric boiler is controlled by the number for opening heating valve;
S14:Boilers heated electrically persistently feeds water heating, increases over time, the rising of the temperature of water in electric boiler.
Embodiment 6
Reference picture 9, a kind of control method of pump power, for phase-transition heat-storage heating system.
When heat release on daytime, the power of water pump is bigger than normal, and the most of of water pump is dallying, in order to save electricity, it is necessary to the greatest extent
The possible flow to reduce water pump idle running.Water pump has certain flow, if total power 50hz is operated, may there was only 10%
Flow is to be efficiently used for heat exchange, and 90% flow is being dallied by anti-blank pipe, if consumed for powerful system this when
Electricity is that very big, general water pump is 50kw power, but heating system on daytime only needs to 10kw and ensures that normal operation,
In such case using the water pump of 50kw power, a kind of waste of the energy is resulted in.
If the power of the water pump for using is too small, can cause that the flow of current is too small, heat is unable to supply away, water pump work(
Rate combination flow parameter, the characteristic one rational power output of selection in addition combined with water pump can be heat supply to reach
Go out and the effect of energy-conservation.
Water pump in phase-transition heat-storage heating system, for system stable operation, is typically set to dual-purpose one standby pattern, that is,
Three big pumps.In exothermic phase on daytime, generally, the heat in heat reservoir is progressively released by 15-16 hour, heat release
Time is more long, it is necessary to consider the frequency reducing measure of water pump, the frequency reducing of water pump is mainly realized by frequency changer.When filling heat to heat reservoir,
At this moment particularly daytime emergency concurrent heating needs to consider that several pumps run together, it is necessary to carry out accumulation of heat to heat reservoir within a short period of time.
The purpose of heating system energy-conservation can be reached by frequency reducing.
S31:It is heat storage state to judge whether heat reservoir is located, and judged result is yes, turns S32, turns S33;
S32:The heat Q9, i.e. QZ=T9*Q9 for needing the heat QZ of accumulation of heat to be multiplied by the unit interval for thermal storage time T9;
S33:Heat in unit interval is transmitted as medium using the hot water heated by boiler, by flow parameter and water
The characteristic of pump selects a rational power output;
S34:Heat reservoir is in heat release state, and a rational output work is selected by user feedback temperature and with the characteristic of water pump
Rate.
Embodiment 7
Reference picture 10, a kind of triple valve adjustment control method, for phase-transition heat-storage heating control system.
Existing heating system connects secondary heat supply by being stood erectly from electric heating, and monitor in real time, this implementation are not carried out for end
Example final target be with reference to end temperature directly affect heating system offer temperature, put by user's family
Thermometer or infrared temperature measurement device, feedback user temperature, by comprehensive calculating, control the width of triple valve.
Electric T-shaped valve can control to flow to the flow of both direction by controlling opening of valve, i.e., by Flow-rate adjustment reality
Now to the control of confession heat flow, the even running of system is realized, the Main Basiss secondary side supply water temperature conduct in calculating process
Regulation target.
The corresponding form of the secondary side supply water temperature first set up under different outdoor temperature conditions, i.e., by gathering outdoor temperature
The target fiducials value of its secondary side supply water temperature is obtained to inquire about, a reference value is modified by the time then, corrected
Temperature value is needed depending on the Temperature numerical fed back according to user end, so that it is final to ensure that the temperature for adjusting can reach
Desired value.
Specially:
S41:The corresponding form of the secondary side supply water temperature set up under different outdoor temperature conditions, turns S42;
S42:The target fiducials value for obtaining its secondary side supply water temperature is inquired about by gathering outdoor temperature, turns S43;
S43:A reference value is modified by time and target place, turns S44;
S44:Final desired value is modified by user feedback after heat supply, turns S45;
S45:The difference of desired value and currency is calculated, turns S46;
S46:Whether difference is judged less than regulation threshold value, and judged result is yes, turns S47, and judged result is no, turns S48;
S47:Valve opening is not adjusted, i.e. output is remained stationary as;
S48:Difference is multiplied into a proportionality coefficient, as the amount for needing regulation, turns S49;
S49:Judge whether the amount absolute value is more than the threshold limit value that valve is set, judged result is yes, turns S50, judged result
It is no, turns S51;
S50:Using the numerical value of threshold limit value plus current actual value as final output numerical value;
S51:Using regulated quantity plus current actual value as final output numerical value.
The foregoing is only the preferred embodiment of the application, be not used to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of the application protection.
Claims (4)
1. a kind of control method of phase-transition heat-storage heating system, the phase-transition heat-storage heating system includes heating cycle system, negative
The circulatory system is carried, heating cycle system passes through heat-exchanger rig with load cycle system(8)Exchanged heat;The heating cycle system
Including boilers heated electrically(1), heating cycle power set(2), phase-transition heat-storage heat reservoir(3), isocon(4), the boilers heated electrically
(1), heating cycle power set(2), phase-transition heat-storage heat reservoir(3), heat-exchanger rig(8)Pass sequentially through the connection of heating cycle pipeline;
Isocon(4)It is arranged on heating cycle pipeline, and and heat-exchanger rig(8)It is in parallel;The heat-exchanger rig(8)Outlet pipe with point
Flow tube(4)Junction be provided with parallel regulator(5);
The phase-transition heat-storage heating system also includes central processing unit, memory and detection means;Central processing unit respectively with
Boilers heated electrically, heat reservoir, detection means and memory are connected;Boilers heated electrically and heat reservoir are connected to detection means;
Characterized in that, the control method includes following steps:
S1:Accumulation of heat is carried out to heat reservoir by boilers heated electrically in the time of paddy electricity, the time heat reservoir of electricity carries out heat release at peak, calculates electricity
The after-heat Qs of heat boiler, turns S2;
S2:Heat Qx required for estimating current time to paddy electricity time started, turns S3;
S3:Whether Qs is judged less than Qx, and judged result is yes, turns S4, and judged result is no, turns S1;
S4:Starting boilers heated electrically immediately carries out energy storage to heat reservoir or carries out energy storage to heat reservoir in the low electricity price time period.
2. the control method of phase-transition heat-storage heating system according to claim 1, it is characterised in that in the step S5
The low electricity price time period is as follows to specific method that heat reservoir carries out energy storage:
S6 :The all of par period after using current time be ranked up from low to high according to electricity price after as a pointer
Queue, that minimum data of electricity price are pointed to by pointer head;The corresponding time period is found out according to minimum electricity price, turns S7;
S7:Power parameter according to current time, outdoor temperature and calorimeter is estimated the electricity price minimum time period and is also needed to
How many heat Q4, turn S8;
S8:Whether Q2 is judged more than Q4, and judged result is yes, turns S9, and judged result is no, the pointer head of queue is shifted to next
That minimum data of individual electricity price find out the corresponding time period as minimum electricity price according to minimum electricity price, turn S6;
S9:Start boilers heated electrically in the electricity price minimum time period carries out energy storage to heat reservoir.
3. the control method of phase-transition heat-storage heating system according to claim 1 and 2, it is characterised in that the step S9
In boilers heated electrically output power control method it is as follows:
S11:Current water temperature T is obtained by the temperature-detecting device of boilers heated electrically;
S12:Whether water temperature is judged in a state close to the boiling point of water, and judged result is yes, turns S13, judged result
It is no, turns S14;
S13:By the situation and the situation of temperature that export, the specified power reduction of electric boiler sets electric boiler overall power
Multiple heating valves are set to, the power of electric boiler is controlled by the number for opening heating valve;
S14:Boilers heated electrically persistently feeds water heating, increases over time, the rising of the temperature of water in electric boiler.
4. the control method of phase-transition heat-storage heating system according to claim 1 and 2, it is characterised in that the phase transformation stores
Hot heating system also includes cycle power device, and the cycle power device is water pump, the power output control of the pump power
Method processed is as follows:
S31:It is heat storage state to judge whether heat reservoir is located, and judged result is yes, turns S32, turns S33;
S32:The heat Q9, i.e. QZ=T9*Q9 for needing the heat QZ of accumulation of heat to be multiplied by the unit interval for thermal storage time T9;
S33:Heat in unit interval is transmitted as medium using the hot water heated by boiler, by flow parameter and water
The characteristic of pump selects a rational power output;
S34:Heat reservoir is in heat release state, and a rational output work is selected by user feedback temperature and with the characteristic of water pump
Rate.
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