CN110397978A - A kind of energy storage equipment and its control method - Google Patents
A kind of energy storage equipment and its control method Download PDFInfo
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- CN110397978A CN110397978A CN201910744317.9A CN201910744317A CN110397978A CN 110397978 A CN110397978 A CN 110397978A CN 201910744317 A CN201910744317 A CN 201910744317A CN 110397978 A CN110397978 A CN 110397978A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 475
- 238000001514 detection method Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000009825 accumulation Methods 0.000 claims description 10
- 239000013589 supplement Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical class [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000194 fatty acid Chemical class 0.000 description 1
- 229930195729 fatty acid Chemical class 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F24D11/003—Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
-
- 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
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1042—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses solar energy
Abstract
The invention discloses a kind of energy storage equipment, including boiler, the energy storage equipment further include: water storage container；The water inlet that the water outlet of the boiler passes through piping connection to the water storage container；Turbid water system；The turbid water system includes water inlet end and water outlet, and the water outlet is used for external system quantity of heat given up, and the water outlet is connected with the first temperature-detecting device；The water inlet end that the water outlet of the water storage container passes through piping connection to the turbid water system；Water storage container water return pipeline, the water storage container water return pipeline is connected to the water storage container from external system, and the first branch line is connected on the water storage container water return pipeline, first branch line is connected to the water inlet end of the turbid water system by the first control valve, and the return water of part is delivered in the turbid water system to mix with the hot water of water storage container output.The device can heat supply temperature it is excessively high, exceed temperature actually required when, water temperature is adjusted.
Description
Technical field
The present invention relates to boiler technology field, especially a kind of energy storage equipment and its controlling party using boiler output hot water
Method.
Background technique
The hot water generated in boiler can be exported as heat source, be applied to life for warm industrial heating.Boiler output
Hot water usually connects heating network by heat supply pipeline, and the heat exchange with external environment is realized in flowing in pipe network, then external
Cold water after exchange is flowed back into boiler by water return pipeline by environment, is re-started heating, is looped back and forth like this.
However, the hot water temperature that sometimes boiler directly generates is excessively high, it is significantly higher than needed for heating or other industrial uses
Temperature.By taking heating application as an example, the temperature of boiler output sometimes makes indoor temperature comfortable far beyond human body sensory
Degree, cause indoor environment to overheat, this had not only made heat surplus cause to waste, but also did not reach the desired effect of heating.
Summary of the invention
The purpose of the present invention is to provide a kind of energy storage equipment and its control methods, carry out in the hot water exported using boiler
When accumulation of energy, can heat supply temperature it is excessively high, exceed temperature actually required when, water temperature is adjusted.
To achieve the above object, in a first aspect, the embodiment of the present invention provides a kind of energy storage equipment, including boiler, feature
It is, the energy storage equipment further include:
Water storage container；The water inlet that the water outlet of the boiler passes through piping connection to the water storage container；
Turbid water system；The turbid water system includes water inlet end and water outlet, and the water outlet is used to export to external system
Heat, and the water outlet is connected with the first temperature-detecting device；The water outlet of the water storage container passes through piping connection to institute
State the water inlet end of turbid water system；
Water storage container water return pipeline, the water storage container water return pipeline are connected to the water storage container from external system, and
The first branch line is connected on the water storage container water return pipeline, first branch line is connected by the first control valve
To the water inlet end of the turbid water system, the return water of part is delivered in the turbid water system to export with the water storage container
Hot water mixing.
Further, it is provided with return water on the water storage container water return pipeline and blocks system, for blocking water storage container
Return water, and return water blocking position be located on the water storage container water return pipeline by first branch line shunting form branch
The downstream side of point.
Further, the return water blocking system includes:
Second control valve；Second control valve is located at the return water blocking position, can block to the water storage container
Return water, so that whole return water be made to flow back into the turbid water system.
Second temperature detection device；The second temperature detection device is connected to second control valve and the branch point
Between water storage container water return pipeline on.
Further, second control valve is diversion three-way valve, and the entrance of the diversion three-way valve is located at water storage appearance
The upstream side of device water return pipeline, one outlet are located at the downstream side of the water storage container water return pipeline, another outlet passes through pipe
Road is connected to the water inlet end of the turbid water system, by switching the outlet of the second control valve, can control return water be back to it is described
Water storage container, or return water is blocked, return water is delivered to the turbid water system.
Further, the turbid water system includes: the mixed water lines for mixed flow, is configured with water inlet end in the mixed water lines
And water outlet, the water inlet end connects the water outlet of the water storage container and the downstream side of first branch line, described mixed
Also there is water pump, for mixed water to be pumped to external system in water lines.
Further, it is configured with branch point on the pipeline of the water outlet of the boiler, which passes through piping connection
To the pipeline of the water storage container water outlet, and valve is equipped on two sections of pipelines separating of the branch point downstream side.
Further, the boiler blow-down water pipeline for leading to the boiler feed water mouth, In are also connected on the water storage container
Be configured with branch point on boiler blow-down water pipeline, the branch point by piping connection to the water storage container water return pipeline, and this point
Valve is equipped on two sections of pipelines that fulcrum upstream side separates.
Further, the water storage container is also connected with supplement hot systems, and the supplement hot systems are solar energy heat distribution system
Or air energy heating system, so that the heat from solar energy heat distribution system or air energy heating system is conveyed into the water storage
In container.
Further, the supplement hot systems are solar energy system, and the output end of the solar energy system is logical by pipeline
Inside to the water storage container and it is connected with water distributor.
Further, phase-changing energy-storing unit is equipped in the water storage container, for storing outside the water storage container
The heat of conveying simultaneously discharges heat when needing heat supply.
Second aspect, the embodiment of the present invention also provide a kind of control method of above-mentioned energy storage equipment, comprising:
Receive the leaving water temperature signal of the first temperature-detecting device detection；
When detecting that leaving water temperature is more than preset target temperature, the first control valve of control is opened, so that part return water
Into the turbid water system；
When detect leaving water temperature be down to the target temperature or it is following when, control the first control valve close.
Further, it is provided with return water on the water storage container water return pipeline and blocks system, for blocking water storage container
Return water, and return water blocking position be located on the water storage container water return pipeline by first branch line shunting form branch
The downstream side of point, the method also includes:
When the water temperature for being all turned on the first control valve, and exporting still is unable to reach the target temperature or less, open
The return water blocks system.
Further, the water storage container is also connected with solar energy heat distribution system and accumulation of heat variable frequency pump, the method also includes:
Accumulation of heat variable frequency pump adopts the warm spot temperature difference according to solar energy and water storage container two and carries out PID adjusting.
Further, phase-changing energy-storing unit is equipped in the water storage container, for storing outside the water storage container
The heat of conveying simultaneously discharges heat when needing heat supply；The method also includes: pass through material in high temperature season phase-changing energy-storing unit
The phase-change thermal storage of material passes through the phase transformation heat release of material in low temperature season phase-changing energy-storing unit；The energy storage is including the use of air energy
With electric boiler paddy electricity energy storage.
Further, the energy storage equipment further includes room temperature monitoring device and/or outdoor temperature monitoring device, described
Control method further include:
The accumulation of energy dress is adjusted according to the temperature signal that room temperature monitoring device and/or outdoor temperature monitoring device monitor
The target output temperature set.
A controllable on-off is arranged in the technical solution provided according to embodiments of the present invention on water storage container water return pipeline
The first branch line first branch line can be opened, when the water output temperature of accumulation of energy in water storage container is excessively high by portion
Divide return water to be transported in turbid water system to mix with the hot water directly exported, play the role of reducing output temperature, thus will output
Water temperature is reduced to suitable level.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of energy storage equipment provided by one embodiment of the present invention；
Fig. 2 is the structural schematic diagram for the energy storage equipment that another embodiment of the present invention provides.
In figure:
110- boiler；111- boiler water outlet；112- boiler blow-down water mouth；
120- water storage container；121- water storage container water inlet；122- water storage container water outlet；
123- water storage container water return outlet；130- turbid water system；131- water inlet end；
The water outlet 132-；133- mixes water lines；134- water pump；
140- return water blocks system；The second control valve of 141-；150- supplements hot systems；
151- solar energy heat distribution system；The first pipeline of 201-；The second pipeline of 202-；
203- third pipeline；The first branch line of 204-；The first control valve of 205-；
206- second branched pipe road；The first branch point of 207-；208- third branch line；
The 4th branch line of 209-；301- water storage container water return pipeline；The first split point of 302-；
The second split point of 303-；The first temperature-detecting device of 401-；402- second temperature detection device；
The first valve of 501-；The second valve of 502-；503- third valve；
The 4th valve of 504-；The 5th valve of 505-；The 6th valve of 506-；
601- boiler blow-down water pipeline；The second branch point of 602-；701- water distributor；
702- solar energy water return pipeline
801- phase-changing energy-storing unit
Specific embodiment
Several illustrative embodiments shown in below with reference to the accompanying drawings describe the principle and spirit of the invention.It should
Understand, describe these embodiments just for the sake of make those skilled in the art can better understand that in turn realize the present invention,
And this scope of the present invention is not limited in any way.
Referring to FIG. 1, energy storage equipment provided in an embodiment of the present invention, including boiler 110,120 turbid water system of water storage container
The components such as 130 and relevant pipeline, valve.Wherein, boiler 110 has boiler water outlet 111 and boiler blow-down water mouth 112.Pot
Furnace 110 is first delivered to water storage container from the hot water that boiler water outlet 111 exports, and is output to external system using turbid water system 130
System, such as heating network.The return water returned from external system, again passes by water storage container 120, is transported to boiler blow-down water mouth 112,
Send return water back to boiler 110.
Water storage container receives the cold water to flow back from external system, plays storage in for storing the hot water from boiler
The effect turned.The construction of water storage container can take various forms, such as box shape shown in FIG. 1.
In some embodiments, boiler water outlet 111 connects the first pipeline 201, and the end of the first pipeline 201 is connected to storage
The water storage container water inlet 121 of water container 120, for example it may be connected to the upper end of water storage container 120.On water storage container 120
It is also provided with water storage container water outlet 122, such as can be in be spaced apart and arranged in sustained height with water storage container water inlet 121.
Water storage container water outlet 122 connects the second pipeline 202, and the end of the second pipeline 202 is connected to the water inlet end 131 of turbid water system,
External system is output to using the third pipeline 203 for the water outlet 132 for being connected to turbid water system.It can on third pipeline 203
The first temperature-detecting device 401 is arranged, such as temperature sensor assembly, the temperature of hot water is exported for real-time monitoring.
External system is in return water, connection water storage container water return pipeline 301 first, under water storage container water return pipeline 301
Trip side is connected to the water storage container water return outlet 123 on water storage container 120.It the upstream side of water storage container water return pipeline 301 can be high
In downstream side, such return water can be in automatic back flow under gravitional force.One is configured on water storage container water return pipeline 301
One split point 302 connects the first branch line 204 on first split point 302, and the downstream side of the first branch line 204 is connected to
The water inlet end 131 of turbid water system 130.
The first control valve 205 (can be electric two-way valve), the first control valve are also equipped on the first branch line 204
205 can control the conducting and blocking of the first branch line 204.When the first temperature-detecting device 401 detects the water temperature of output
When excessively high, the first control valve 205 opens the first branch line 204, and the water to flow back at this time from water storage container water return pipeline 301 is the
One split point 302 punishment stream, a part continue to be back in water storage container 120 along water storage container water return pipeline 301, another portion
Divide and flows into turbid water system 130 along the first branch line 204.And in turbid water system 130, it on the one hand has received from boiler
The hot water of 110 outputs, on the other hand has received the return water from the first branch line 204, and since the temperature of return water is relatively low,
So that return water is mixed with hot water after blending, whole water temperature is reduced, to reduce the temperature of output water.Until being reduced to
After expected output water temperature, energy storage equipment does not need to introduce return water to reduce temperature, and the first control valve 205 is closed.
In some embodiments, the switching frequency between on-off of the first control valve 205 may be higher.When the first temperature
When degree detection device 401 detects the temperature of output water slightly higher expected water temperature excessively, then the first control valve 205 is opened at once, defeated
It sends water back to, reduces the temperature of output water.Because the water temperature exported at this time and expected water temperature differ very little, return water can be by entirety
Output water temperature be rapidly decreased to expected level, at this time in order to avoid water temperature continues to be reduced under expected level, the first control
Valve 205 immediately closes off.And after shorter time interval, output water temperature can reach the slightly higher level for crossing expected water temperature again, at this time
The first control valve of secondary control 205 is opened again, is looped back and forth like this, the water temperature of output can be remained at relative constant shape
State, this steady state are adjusted in real time higher from 205 frequency of the first control valve.
Sometimes, although the state that the first control valve 205 maintains a normally open, the water temperature of output still cannot be reduced to expected water
It is flat.Inventor has found that this is because the water temperature over-high of boiler output, and be diverted from the first split point 302
Return water is only a part of whole return water, so that cooling effect is not obvious enough.For this purpose, upper in water storage container water return pipeline 301
Second split point 303 is being set in the downstream side of the first split point 302, return water is provided at the second split point 303 and blocks system
140, whole return water is blocked for controlling.
Return water blocks system 140 that can take various forms, if valve, valve block, valve with various types access
With the combination of pipeline etc..For example, in the embodiment shown in fig. 1, it includes second control valve 141 that return water, which blocks system 140,
Second control valve 141 is diversion three-way valve, has an entrance and two outlets, passes through the on-off control of the second control valve 141
System can make one of outlet open, and another outlet is closed.141 entrance of the second control valve is located at upstream side,
The one outlet in downstream side leads to water storage container 120 along water storage container water return pipeline 301, another outlet second branch of connection
Pipeline 206, the downstream side on second branched pipe road 206 are connected to the water inlet end 131 of turbid water system.In addition, in the second split point 303
And it is additionally provided with second temperature detection device 402 on the first pipeline between split point 302, the second temperature detection device 402
For detecting the temperature of return water.
It is blocked in return water and second temperature detection device 402 is set in system 140, it can judge the from the temperature of return water
Whether the return water that one branch line 204 shunts is reduced to expected level for the water temperature of output enough.This is because boiler 110
The hot water temperature of output is very high, if if the return water water temperature that second detection device 402 detects has approached the first control
The threshold temperature (i.e. the water temperature of anticipated output) that valve 205 switchs illustrates that the return water water temperature shunted has been not enough to boiler 110 is defeated
High-temperature-hot-water out significantly reduces.
When the first temperature-detecting device 401 detects the water temperature over-high of output, i.e., higher than the temperature t of anticipated output1, and the
Two temperature-detecting devices 402 detect the temperature of return water also above scheduled return water temperature value t2When, then control the second control valve
The outlet of water storage container 120 is led in 141 closings, opens the outlet for leading to second branched pipe road 206.Whole return water is hindered at this time
It is disconnected, water storage container 120 is no longer flowed back into, but is all transported to mixed water through the first branch line 204 and second branched pipe road 206
In system.In this way, whole return water is used to reduce output water temperature, output water temperature is enabled to be further decreased.
According to the present embodiment, in setting temperature threshold t1And t2When, it can be by t2Temperature be slightly less than t1Temperature.If
Second temperature detection device 402 detects that return water temperature is higher than t2, illustrate that return water temperature is higher at this time, if return water is gone successively to
Water storage container 120 can further be heated in the water storage container 120 originally with very high temperature, and then be entered in boiler 110
It is recycled, is thus less useful for the reduction of output water temperature, therefore the second control valve 141 should be controlled and closed to water storage container
120 return water opens the outlet to second branched pipe road 206, and the whole return water recycled at this time no longer enter water storage container 120
It is heated in boiler 110, but being directly entered the water temperature that turbid water system exports boiler 110 reduces, until output
Temperature be reduced to t1, and return water temperature is reduced to t2Hereinafter, control the second control valve 141 closing is opened to second branched pipe road 206
Outlet, open the outlet to water storage container 120, re-start return water.
Threshold temperature t1And t2Setting can neatly be adjusted according to seasonal variations or other heat demands, for example, when defeated
It, can be in weather slightly cold early winter by t when hot water out is as heating135 DEG C are set as, t232 DEG C are set as, In
Weather extremely the cold severe winter when by t140 DEG C are set as, t2It is set as 38 DEG C.
In some embodiments, turbid water system 130 includes the mixed water lines 133 for mixed flow, structure in the mixed water lines 133
Water inlet end 131 and water outlet 132 are made, water inlet end 131 connects under water storage container water outlet 122 and the first branch line 204
Side is swum, mixing also has water pump 134 in water lines 133, for mixed water to be pumped to external system.Wherein, water inlet end 131
Quantity can have multiple pipeline quantity depending on connection required for 130 upstream side of turbid water system.The quantity of water pump 134
Can be set it is multiple, for increasing pumping efficiency.In some other embodiment, mixed water can also be replaced using containers such as water tanks
Pipeline 133.
In some embodiments, the pipeline of the water outlet of boiler is configured with the first branch point 207 on i.e. the first pipeline 201,
First branch point 207 is connected to the second pipeline 202 of water storage container water outlet by third branch line 208, and this first
207 downstream side of branch point separates two sections of pipelines, and one section of connection water storage container 120 which is provided with the first valve 501, another section is
Third branch line 208 which is provided with the second valve 502.When being badly in need of hot water output, the first valve 501 can be closed, the
Two valves 502 are opened, and the hot water that boiler 110 exports directly is exported without water storage container 120, can meet heat supply need in time
It asks.Further, third branch line 208 can also be located in the second pipeline 202 and is connected thereto the setting of downstream side a little third
Valve 503, the hot water for exporting to water storage container 120 control.
It can also be connected with the boiler blow-down water pipeline 601 for leading to boiler feed water mouth 122 on water storage container 120, returned in boiler
The second branch point 602 is configured in water lines 601, which is connected to water storage appearance by the 4th branch line 209
Device water return pipeline 301, two sections of pipelines which separates, one section of connection water storage container 120 are set thereon
There is the 4th valve 504, another section is the 4th branch line 209, which is provided with the 5th valve 505, further, is held in water storage
The downstream side of 209 tie point of device water return pipeline 301 and the 4th branch line is additionally provided with the 6th valve 506.When the quick return water of needs
When reheating into boiler 110, the 6th valve 506 and the 4th valve 504 can be closed, opens the 5th valve 505, at this time return water
Without water storage container 120, it is directly entered boiler 110.
Fig. 2 shows the structural schematic diagram of energy storage equipment in another embodiment, the difference of the embodiment and Fig. 1 are,
Water storage container 120 is also connected with supplement hot systems 150, and supplement hot systems can be solar energy heat distribution system 151 or air energy heat supply
System (not shown), so that the heat from solar energy heat distribution system 151 or air energy heating system is conveyed into water storage
In container 120.
In some embodiments, the output end of solar energy system 151 leads to the inside of water storage container 120 by pipeline, and
Water distributor 701 is connected in the end of pipeline.It can have multiple water outlets on water distributor 701, for into water storage container 120
Uniform moisturizing, so that heat is uniformly dispersed.120 bottom of water storage container is also connected with solar energy water return pipeline 702.
Further, also there is phase-changing energy-storing unit 801 in water storage container 120.Phase-changing energy-storing unit includes one or more
A energy storage tank, energy storage tank is interior to have energy storage materials of phase change.It is this such as solid-liquid phase change energy-accumulation material, solid-solid phase-change energy-accumulation material
Material is known in the related art, mainly includes high score subclass, laminated perovskite, sodium sulphate class, sodium acetate class, fatty acid
Class, polyalcohol and paraffin.In high temperature season, phase-changing energy-storing unit can absorb from externally supply heat (such as air energy and
The energy storage of electric boiler paddy electricity), phase-change material is absorbed a large amount of heat, heat storage is got up by solid state into liquid state.In low temperature season
Section, phase-change material are changed into solid-state by liquid, discharge a large amount of heat, are used for heat supply.
The embodiment of the invention also provides the control methods of above-mentioned energy storage equipment, and this method comprises the following steps:
S102: the leaving water temperature signal of the first temperature-detecting device detection is received；
S104: when detecting that leaving water temperature is more than preset target temperature t1, the first control valve of control is opened, so that portion
Return water is divided to enter the turbid water system；
S106: when detecting that leaving water temperature is down to target temperature t1 or following, the first control valve of control is closed.
Such circulation step S104- step S106, can adjust output water temperature in real time, maintain it always pre-
If temperature.
In some embodiments, method further include:
S108: the return water temperature signal of second temperature detection device detection is received；
S110: when the return water temperature detected is higher than preset target temperature t2, control return water blocks system to be in resistance
Disconnected whole return water, whole return water are exported to the working condition of turbid water system.
S111: when the return water temperature detected is lower than preset target temperature t2, control return water blocks system to be in and leads
Lead to the working condition of return water to water storage container.
Wherein, target temperature t2 is less than target temperature t1.
By step S108-S111, can be not enough to for water temperature to be down to target temperature t1 in the return water that step S104 is conveyed
When, block whole return water and for mixing water cooling.
In some embodiments, indoor temperature transmitter and room can also be respectively set in the indoor and outdoors of energy storage equipment
Outer temperature sensor can be with when indoor temperature transmitter and outdoor temperature sensor detect that temperature reaches certain threshold value
By the target water temperature of control unit adjustment energy storage equipment output.For example, working as indoor or outdoors when the temperature is excessively high, can suitably reduce
Output water temperature.
In some embodiments, the first temperature-detecting device and second temperature detection device can be separately connected the first control
The communication interface of controller in valve and the second control valve can also unify that a central control system is arranged, so that the first temperature
Detection device, second temperature detection device, the first control valve, the second control valve are each individually connected to the communication of central control system
Interface.
Hardware matched with the control method may include distribution box one, and one, frequency converter, PLC is a set of, touch screen one
Set, three sets of water pump forceful electric power element, more of temperature sensor (such as 4-6 is only), working hour wire rod attachment one.
A specific control flow more is described below.
First control valve is electronic two regulating valves, according to heating system leaving water temperature regulating opening angle.Such as water outlet
Temperature target is set as 50 degree, then controller (PLC) uninterruptedly exports 4-20 milliamperes of signals to electric control valve, has reached steady
Make 50 degree of coolant-temperature gage of target.When water temperature is continued above 50 degree or more, i.e., electronic two regulating valves reach highest limit.Work as water
Electric control valve is closed to minimum when temperature is lower than 50 degree.Start-up operation when higher than 50 degree, non-stop run is to reach stable
The target hard-working that 50 degree of leaving water temperature is often opened to the maximum when temperature 1 is persistently higher than 50+5 degree or more.Return water blocks system simultaneously
Start to start.
Electronic two regulating valves reach highest prescribe a time limit also high 50 degree of return water temperature when, the second control valve (specially electronic three
Logical switch valve) it starts to work according to 45 degree of return water temperature sensor actuation.When return water temperature is higher than 45 degree of ± 2 degree of threeway valve events
Unlatching makes water return system circulation, when return water temperature is lower than 45 degree of ± 2 degree of threeway valve events open guidance water storage containers (water tank).
Accumulation of heat variable frequency pump adopts the warm spot temperature difference according to solar energy and hot water storage tank two and carries out PID adjusting.As the temperature difference is set as 5
Degree, when solar water-temperature reaches 70 degree, 67 degree of hot water storage tank water temperature, the PLC monitoring temperature difference, which spends half greater than 5, enables frequency converter add
Speed, on the contrary slow down.Energy-storage system installs a timer additional, to realize that accumulator is working by day, rests at night.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to
Help understands core of the invention thought.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention
Protection scope within.
Claims (15)
1. a kind of energy storage equipment, including boiler, which is characterized in that the energy storage equipment further include:
Water storage container；The water inlet that the water outlet of the boiler passes through piping connection to the water storage container；
Turbid water system；The turbid water system includes water inlet end and water outlet, and the water outlet is used for external system quantity of heat given up,
And the water outlet is connected with the first temperature-detecting device；The water outlet of the water storage container passes through piping connection to the mixed water
The water inlet end of system；
Water storage container water return pipeline, the water storage container water return pipeline are connected to the water storage container from external system, and in institute
It states and is connected with the first branch line on water storage container water return pipeline, first branch line is connected to institute by the first control valve
The return water of part is delivered in the turbid water system to the heat with water storage container output by the water inlet end for stating turbid water system
Water mixing.
2. energy storage equipment according to claim 1, which is characterized in that be provided with return water on the water storage container water return pipeline
Blocking system, for blocking the return water of water storage container, and return water blocking position is located on the water storage container water return pipeline by institute
State the downstream side that the first branch line shunts formed branch point.
3. energy storage equipment according to claim 2, which is characterized in that the return water blocks the system to include:
Second control valve；Second control valve is located at the return water blocking position, can block returning to the water storage container
Water, so that whole return water be made to flow back into the turbid water system.
Second temperature detection device；The second temperature detection device is connected between second control valve and the branch point
Water storage container water return pipeline on.
4. energy storage equipment according to claim 3, which is characterized in that second control valve is diversion three-way valve, this point
The entrance of stream triple valve is located at the upstream side of the water storage container water return pipeline, and one outlet is located at the water storage container return pipe
The downstream side on road, another outlet pass through the second control valve of switching by the water inlet end of piping connection to the turbid water system
Outlet can control return water and be back to the water storage container, or blocks return water, and return water is delivered to the turbid water system.
5. energy storage equipment according to claim 1 to 4, which is characterized in that the turbid water system includes: for mixed flow
Mixed water lines, be configured with water inlet end and water outlet in the mixed water lines, the water inlet end connects the water outlet of the water storage container
Mouthful and first branch line downstream side, also there is water pump, for mixed water to be pumped in the mixed water lines
External system.
6. energy storage equipment according to claim 1, which is characterized in that be configured on the pipeline of the water outlet of the boiler
Branch point, the branch point is by the pipeline of piping connection to the water storage container water outlet, and the branch point downstream side separates
Valve is equipped on two sections of pipelines.
7. energy storage equipment according to claim 1, which is characterized in that be also connected on the water storage container described in leading to
The boiler blow-down water pipeline of boiler feed water mouth, is configured with branch point on boiler blow-down water pipeline, which passes through piping connection extremely
The water storage container water return pipeline, and valve is equipped on two sections of pipelines separating of the branch point upstream side.
8. energy storage equipment according to claim 1, which is characterized in that the water storage container is also connected with supplement hot systems, institute
Stating supplement hot systems is solar energy heat distribution system or air energy heating system, so that solar energy heat distribution system or air energy will be come from
The heat of heating system is conveyed into the water storage container.
9. energy storage equipment according to claim 8, which is characterized in that the supplement hot systems are solar energy system, described
The output end of solar energy system is led to inside the water storage container by pipeline and is connected with water distributor.
10. according to claim 1, energy storage equipment described in 8 or 9, which is characterized in that be equipped with phase-changing energy-storing in the water storage container
Unit, for storing the heat conveyed outside the water storage container and discharging when needing heat supply heat.
11. a kind of control method of energy storage equipment described in claim 1 characterized by comprising
Receive the leaving water temperature signal of the first temperature-detecting device detection；
When detecting that leaving water temperature is more than preset target temperature, the first control valve of control is opened, so that part return water enters
The turbid water system；
When detect leaving water temperature be down to the target temperature or it is following when, control the first control valve close.
12. the control method of energy storage equipment according to claim 11, which is characterized in that the water storage container water return pipeline
On be provided with return water and block system, for blocking the return water of water storage container, and return water blocking position is located at the water storage container time
The downstream side for forming branch point is shunted in water lines by first branch line, the method also includes:
When the water temperature for being all turned on the first control valve, and exporting still is unable to reach the target temperature or less, described in unlatching
Return water blocks system.
13. control method according to claim 11, which is characterized in that the water storage container is also connected with solar-heating system
System and accumulation of heat variable frequency pump, the method also includes: accumulation of heat variable frequency pump according to solar energy and water storage container two adopt the warm spot temperature difference into
Row PID is adjusted.
14. control method according to claim 11, which is characterized in that be equipped with phase-changing energy-storing list in the water storage container
Member, for storing the heat conveyed outside the water storage container and discharging when needing heat supply heat；The method is also wrapped
Include: the phase-change thermal storage in high temperature season phase-changing energy-storing unit by material passes through material in low temperature season phase-changing energy-storing unit
Phase transformation heat release；The energy storage can be with the energy storage of electric boiler paddy electricity including the use of air.
15. control method according to claim 11, which is characterized in that the energy storage equipment further includes room temperature monitoring
Device and/or outdoor temperature monitoring device, the control method further include:
The energy storage equipment is adjusted according to the temperature signal that room temperature monitoring device and/or outdoor temperature monitoring device monitor
Target output temperature.
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| CN110397978B (en) | 2024-02-23 |
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