CN101258364A - Control device - Google Patents
Control device Download PDFInfo
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- CN101258364A CN101258364A CNA2006800323389A CN200680032338A CN101258364A CN 101258364 A CN101258364 A CN 101258364A CN A2006800323389 A CNA2006800323389 A CN A2006800323389A CN 200680032338 A CN200680032338 A CN 200680032338A CN 101258364 A CN101258364 A CN 101258364A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 238000012546 transfer Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 201
- 230000004087 circulation Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000001143 conditioned effect Effects 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 44
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000009833 condensation Methods 0.000 description 13
- 230000005494 condensation Effects 0.000 description 13
- 230000008901 benefit Effects 0.000 description 12
- 239000008399 tap water Substances 0.000 description 10
- 235000020679 tap water Nutrition 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009102 absorption Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 241000589248 Legionella Species 0.000 description 2
- 208000007764 Legionnaires' Disease Diseases 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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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
- 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
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/04—Desuperheaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention refers to a control device intended for use with a heat pump with an evaporator and a condenser in which a heat transfer medium in a heat transfer circuit, that is heated up by means of the evaporator and a compressor, is arranged to transfer heat to a main liquid flow, via a first part of a heat exchanger and a second part of a heat exchanger. The device includes means for diverting a partial flow from the said main liquid flow, at least in a heating mode, for passage through the second part of the heat exchanger. The invention also relates to a method, a heat pump and a heating system.
Description
Technical field
The present invention relates to a kind of heating system, relate in particular to the control appliance that uses with heat pump of being used for according to the preamble of claim 1.
The invention still further relates to the control method used with heat pump of being used for according to the preamble of claim 15, and a kind of heat pump and a kind of heating system.
Background technology
The heating system that has many heating dwelling houses at present.Along with energy prices increase, heat pump is the more and more welcome heating system of a class.Dwelling house is designed to produce leading with hot water and radiator hot water with heat pump.The heat that is used for dwelling house is distributed by heat supplying loop under the floor or radiator usually, and heat supplying loop or radiator can be provided with fan sometimes under the described floor.
Tap is stored in the reservoir in the heat pump or the next door usually with hot water, and comprises water tank substantially, and in order to provide immediately than the instantaneous more hot water of hot water that can produce of heating system, hot tap-water is heated and is stored in the water tank.
In the situation that reservoir (hot water) arranged, wherein directly carry out heating by electric current, in order to discharge more hot water daytime, at night can heat hot water.The heating of such water, the temperature that can be heated to the water in the hot water when water tank is heated fully, can be discharged the mixed hot water of a lot of liters without limits in principle.
On the other hand, under the situation of heat pump, the heating of hot water takes place with more frequent interval.In addition, the heating of hot water occurs in the hot water of the so-called primary water that is heated by heat pump circuit, promptly so-called secondary water or hot tap-water.When temperature restriction that possible water heating-up temperature can be reached by the heat pump primary water, restricted to the temperature that secondary water can be heated to.
Therefore when the design heat pump, a lot of standards must be included consideration in.For example, bath should be at least 40 ℃ with hot tap-water at the tap place.In addition, exist the temperature that requires in the hot-water storage water tank must be at least 50 ℃ regulation in Sweden at least.In addition, in order to stop the Legionella dramatic growth, all hot water should be heated at least 60 ℃ with Fixed Time Interval.
At least at economic aspect, there is restriction in the temperature that can reach for the heat pump primary water, and how many secondary water this has limited, and---hot tap-water---can be heated by primary water.
Therefore need a kind of heat pump, it can provide more substantial secondary water with lower expense.
Summary of the invention
The purpose of this invention is to provide a kind of control appliance that is used for heat pump, it can provide more substantial secondary water with lower expense.
According to a first aspect of the invention, this purpose is by according to the control appliance of claim 1, realize according to the method for claim 15 and according to the heat pump of claim 26 with according to the heating system of claim 27.
According to control appliance of the present invention, it is used for using with the heat pump with evaporimeter and condenser, in heat pump, be arranged to heat be passed to main liquid stream by the heat transfer medium in the heat transfer loop of evaporimeter and compressor heating, and heat exchanger component comprises that the part flow point that makes at least from described main current flows out and equipment by second heat exchanger component under heating mode via first heat exchanger component.Compared with prior art, this has the advantage that significantly changes ratio between heating surface and the flow than low discharge, the result, and part stream can be heated to than much higher in the past temperature than previous situation, and expense is also much lower.Then, part stream can be used for secondary water is heated to the temperature hotter substantially than previous situation.
After main liquid communication was crossed first heat exchanger component, described part stream can distribute.This has advantage, and promptly when partly flowing to when reaching second heat exchanger component, part stream partly is heated.
This equipment can comprise makes through the part stream of heating by or introduce the device of water tank, be used for part stream by during heat is spread the water of feed-tank from part.This means the storage of water that can obtain high temperature with low heating cost.
This equipment also comprises control appliance, is used for the ratio of adjusting portion shunting with respect to total flow.This control appliance for example can comprise adjustable flow divider or choke valve.
This has following advantage, and promptly the flow of part stream can be regulated, thereby the current temperature that always guarantees tank top is not less than specified temp, for example 50 ℃.In addition, discharge can be regulated as requiring always, and for example in particular moment, hot water production can give preferentially, and at other constantly, heat supply can give preferentially.Preferably the control computer by heat pump controls to adjust.
The stream that returns that returns stream and hot water of part stream can link together in the cold water side of first heat exchanger component.This has following advantage, promptly accumulates in energy in the heating system and can " use " temporarily and increase hot water production.
First heat exchanger component mainly comprises condenser, and second heat exchanger component mainly comprises hot gas heat exchanger.This has following advantage, and hot gases can be heated to part stream very high temperature.
Description of drawings
Fig. 1 has shown the heat pump according to prior art substantially.
Fig. 2 a-Fig. 2 e has shown different service conditions and the relevant enthalpy diagram according to the demonstration heat pump of prior art.
Fig. 3 a and Fig. 3 b have shown the heat pump according to example embodiment of the present invention.
Fig. 4 has shown according to demonstration service condition of the present invention.
Fig. 5 has shown according to another demonstration service condition of the present invention.
Fig. 6 has shown alternative embodiment of the present invention.
The specific embodiment
Fig. 1 has shown and has been installed in for example heat pump 10 according to prior art in the house of real estate, and schematically shown radiator system 15.Heat pump 10 is provided with control computer 12, the multiple function of its control and supervision heat pump.The example of these functions can be the operating temperature that is provided with and/or monitors heat pump compressor, indoor and outdoors temperature, heating curve adjusting, according to the time in daytime or under the situation of staying out holiday or the like the control room temperature.To provide other example below.The user can get in touch with control computer 12 by the display and the keyboard (not shown) that are arranged on the heat pump 10.In addition, heat pump 10 comprises heat pump circuit and water tank 11, the outlet 14 that described water tank 11 has the inlet 13 at the bottom of case and pushes up at case, and water to be heated enters from described inlet 13, leaves water tank through the water that heats from described outlet 14.
Heat pump circuit comprises the circulation heat transfer medium, wherein mainly be the thermal source draw heat of the heat transfer medium 21 of liquid from for example rock heating circuit 22, wherein cold medium (for example approximately-5 ° to the glycol/water of+5 ° of temperature) is by the circulation of the circulating pump in water-filled bore hole.When liquid heat-transfer medium 21 heat absorptions, it evaporates in evaporimeter 23.Evaporating temperature for example can be-7 °.The gas heat-transfer medium is compressed to higher pressure by compressor 24 then, because gas volume reduces, this means that gas temperature increases.Compressed heated air (hot gas) is emitted heat via condenser 25 and subcooler 26 then and is given so-called primary water or radiator water 27, and gas is condensed into liquid simultaneously.Supercooling means can extract extra heat, thereby provide more economical heat pump, it has guaranteed do not have bubble to remain in the heat transfer medium when heat transfer medium arrives expansion valve 28 simultaneously, significantly reduced the pressure of liquid heat-transfer medium thus, therefore the temperature of heat transfer medium reduces rapidly, afterwards, heat transfer medium is once more from 22 heat absorptions of rock heating circuit.As the replacement that absorbs the heating circuit of heat from rock, can be from soil, air and/or water heat absorption.Figure has also shown electric heater cartridge 29 and has been used for the switching valve 16 of conversion between hot water production and heat production, described electric heater cartridge (electric heater cartridge) 29 is only used when needs additionally provide heat, for example in the very cold date.In addition, the circulating pump 17 that has shown the primary water that is used to circulate.
Then, the primary water that is heated by heat pump circuit is used for heating system under the radiator of alternately heat hot running water and real estate and/or the floor.Heat pump efficiency is by the condensation temperature decision of heat transfer medium, and temperature is low more, and the pressure that condensation begins is low more, and efficient is high more.If primary water is arrived for example 35 ° by the 10KW heat pump, can be 5 as the so-called heat pump performance coefficient (COP) of ratio between output and the input so, when primary water is heated to 50 °, COP can be 3.4 so, when primary water is heated to 60 °, COP can be 2.5 so.
The temperature that the heat pump primary water can arrive has restriction at economic aspect at least, and how many secondary water this has limited, and---being hot tap-water---can be heated by primary water.
Fig. 2 a-Fig. 2 e for example understands this point.Fig. 2 a has shown the system of Fig. 1, and it has the temperature that is used for following imaginary ruuning situation, and wherein real estate is heated by heating system under the floor, and the heating/circulation of the radiator water in the heating system is carried out according to the loop that is provided with arrow under the floor.As shown in FIG., when radiator water when the A place is received in subcooler 26, radiator water has 25 ℃ the temperature of returning.During by subcooler 26 and condenser 25, radiator water is heated to 35 ° at it, and meanwhile the temperature of heat transfer medium 66 ℃ when entering condenser are reduced to by 28 ℃ behind the subcooler.Fig. 2 b has shown corresponding enthalpy diagram, and as can be seen from this figure, in this ruuning situation, obtains to be about 5 COP value (P
OUT/ P
IN).It can also be seen that from this enthalpy diagram hot gas heat exchanger is served as on the top of the condenser 25 among Fig. 2 a, hot gas is cooled to 39 ℃ and condensation does not take place from 66 ℃, and reaches 39 ℃ up to gas temperature condensation just takes place.
Fig. 2 c has shown same system, but it has the temperature that is used for following imaginary ruuning situation, and the hot tap-water that wherein changes in the water tank 11 is heated.As can be seen, in this case, when the A place in subcooler 26 received primary water, primary water had 47 ℃ the temperature of returning among the figure.During by subcooler 26 and condenser 25, primary water is heated to 60 ° at it, and simultaneously, the temperature of heat transfer medium 110 ℃ when entering condenser are reduced to by 50 ℃ behind the subcooler.Fig. 2 d has shown corresponding enthalpy diagram, and as can be seen from this figure, obtains to be about 2.5 COP value (P for hot water production
OUT/ P
IN).Therefore, the realization cost of hot water production is much higher than the heating of radiator water.In addition, though the hot gas temperature height, this solution has provided in the water tank 11 50-55 ℃ maximum temperature.Its reason shows in Fig. 2 e, has shown among the figure that the temperature rising of primary water when heat transfer medium passes through subcooler 26 and condenser 25 and the temperature of heat transfer medium reduce.As shown in FIG., the temperature of the hot gas in the hot gas parts is reduced to 60 ℃ from 110 ℃, and meanwhile, water temperature only raises the several years, although as can be seen should the fact from Fig. 2 d, still has almost 30% heat transfer medium energy to emit in the hot gas parts.The heating surface that little this true part of temperature increase ascribes the hot gas parts to is relatively little, and it is big relatively that a part ascribes flow to.Can be write as P=k* Φ * Δ T from the energy that heat exchanger is drawn, Φ is a discharge here, and Δ T is the water temperature difference before and after the heat exchanger, and k is a constant.Therefore, if flow is big, the increase of temperature will can be not big especially.Low primary water temperature means that the temperature in tank top drops to and is lower than before required 40 ℃ of tap, can discharge limited hot water.In addition, this means that the primary water of returning temperature that has 47 ℃ in Fig. 2 c after a large amount of the discharge has lower temperature, perhaps only be 20 ℃, owing to cooling bigger when it passes through water tank 11, temperature shown in this causes conversely is lower than 60 ℃ heated primary water for example may be 30 ℃ so low, this has also further reduced the temperature on case top, because heat circulation downwards in water tank (water heating primary water of the heat of box top, primary water is transferred to heat in the colder water of lower box part afterwards), thereby before the temperature on case top reaches 50 ℃ once more, may spend considerable time, and therefore may discharge big water gaging.
Make that discharging the easier mode of big water gaging is the temperature that further increases heat transfer medium, thereby increase the temperature of primary water.Yet this is to carry out with inefficient cost, and for example, when primary water is heated to about 65 ℃, the COP that is reached is about 2.
Fig. 3 a has shown that according to embodiments of the invention according to this embodiment, the producing cost of hot tap-water can be more much lower than known technology.As shown in Figure 1, heat pump 30 comprises heat pump circuit and water tank 31, and it has inlet 33 that water at the bottom of case, to be heated enters and in the outlet 34 case top, leave this chest through the water of heating.In this example, the heat transfer medium 32 of circulation is also from thermal source heat absorption, is evaporated and compresses.In this example, unit 36 circulations of primary water by comprising condenser/undercooler, here heat transfer medium is passed to primary water with its heat in condensation/mistake between cold period, takes this primary water and is heated to suitable 35 ℃ of passing through circulating pump 31 circulations through heating system under the floor.Primary water is passed through electric heater cartridge 39 then.Different with the prior art that flows by 16 changes of the switching valve among Fig. 1 alternately to produce heat and hot water, according to the present invention, adopt flow divider to make from part stream 42 shunting from primary water 37 of primary water.The residual stream 43 of primary water cycles through heating system under the floor in the real estate, and simultaneously, 20% the part stream 42 that can be adjusted to and can be accumulated to total flow for example flows to hot gas heat exchanger 35.As the result than low discharge, the ratio between heating surface and the flow raises greatly, and this causes part stream can be heated to quite higher temperature.In response to the adjusting with the ratio of total flow of part stream, electric heater cartridge 39 can make extra heat be provided to radiator current and/or hot tap-water stream.Shown in Fig. 3 a in this example and Fig. 3 b (it is corresponding with Fig. 2 e), part stream (according to formula P=k* Φ * Δ T) is heated to 60 ℃, and meanwhile, heat pump with Fig. 2 b in identical COP work.Part stream is used for the heat hot running water then, shown in hot tap-water therefore can be heated to 55-60 ℃, and have 35 ℃ of identical COP that provide of prior art.Through after the water tank, this part flows to and reaches main flow so that circulation once more at part stream.If change the use radiator in real estate, radiator water for example is heated to 60 ℃ rather than 35 ℃ as a result, and the present invention means that part stream can be heated to even higher temperature.If, for example as Fig. 2 c, be 110 ℃ in the temperature of the hot gas at the hot gas heat exchanger place that enters the mouth, in principle the temperature that can be heated to the water in the water tank without limits, yet for fear of boiling, the temperature at top should remain to 95 ℃ to greatest extent.Can (charge up) arrive the very result of the ability of high temperature as water tank is filled, obtain such heat pump, for same production cost, the discharge hot water that described heat pump can be unprecedentedly a large amount of.The size of improving can be readily seen that, because this is to constitute 40 ℃ that the leading place of reference point needs, therefore according to present embodiment, the actual temperature scope that is used for mixed hot water is 55 ℃ (95-40), compare with 10 ℃ (50-40), have with before be very large improvement with regard to percentage under the situation of identical COP of 50 ℃ hot water providing.In addition, this has the advantage of the growth danger that can significantly reduce Legionella, because water is heated to higher temperature, and in addition, by the operation of heat pump, water tank can be heated to high temperature, and this has reduced the further demand to electric heater cartridge.Flow can be regulated, and therefore the hot gas at heat exchanger does not partly have condensation.The part stream of heat has the advantage that obtains Fast Heating in tank top, and because the stratification (stratification) in the hot water, adopts this mode to obtain the available hot water of specified quantitative fast, even discharge a large amount of after.Even when hot water emptied fully, quick generation was filled in again at the top, and correspondingly produced the new hot water of certain available quantity fast.In addition, solution according to the present invention means compared to the prior art and to obtain significantly more hot water, because water is heated to higher temperature, or the size that alternatively is used for the water tank of heat pump can reduce.The flow of part stream can be regulated, and therefore, the temperature that flows that always guarantees to enter tank top can not drop to and be lower than 50 ℃, perhaps high 5 ℃ than the temperature of tank top always, yet for fear of boiling, as previously described, the temperature of tank top should remain to 95 ℃ to greatest extent.
In alternately producing the existing heat pump of hot water and heat, the water in the radiator can be static for example 20 minutes, produces hot water simultaneously.Work as radiator water then and enter circulation once more, hot water is poured in this system as transient state, and this causes heating rapidly the pipeline in the wall, and described pipeline has been cooled to general 20 ℃, this means pipe expansion and attempts to force the separator wall element.These power cause can be than the impact noise of work done in the manner of a certain author pistol shooting.The present invention can avoid this problem, because water constantly circulation in radiator loop, and can moment occurrence temperature variation.
The present invention has additional advantage, and just the water that gathers in the heater system of real estate can be used to quicken the heating of hot tap-water.This is in Fig. 4 illustrated.If a large amount of hot water are discharged from water tank, water is 50 ℃ in radiator loop in an example, part stream return temperature, just pass through water tank temperature afterwards, to (the figure illustrates the temperature that part flows after hot water is discharged from 70 ℃ of 15 ℃ of reducing to Fig. 4 for example, because this reason, the temperature of figure middle part shunting is 67 ℃ rather than 70 ℃).This hot water of 15 ℃ mixes with the stream that returns of radiator loop then.Constitute about 9% of total flow as fruit part stream, as among the figure (the 16g/ (16g+168g), the stream that returns that this means radiator water reduces about 2 ℃ (according to formula R* (16+168)=(15*16+40*168), here R=temperature as a result, its maximum temperature of representing part stream conversely reduces to about 67 ℃.If, as the situation in the normal house, radiator loop is made up of 400kg iron, and in pipeline and part, hold 100 premium on currency, can be used as the result that temperature in the radiator loop reduces and the rising number L and can calculate like this of 40 ℃ the additional hot water that obtains: 2* (100*4.18+400*0.46)=30* (L*4.18)
Wherein:
4.18=the thermal capacity of water
0.46=the thermal capacity of iron
The temperature difference between 10 ℃ the water that 30=introduces and the 40 ℃ of water
The 10 extra premium on currency that this is given in 40 ℃ have 10 minutes flushing time (that is the time that is spent with the mobile replacement radiator water of just discussing) altogether.Even the temperature in the radiator reduces in this case, they still heat, and when a period of time did not have hot water to discharge, radiator system and water tank were filled energy once more by heat pump then.
Fig. 5 shows another example, wherein the energy that gathers in the radiator system in addition more major part be borrowed in the generation of hot water.In this example, part stream is bigger, is approximately 58%, and this causes the maximum temperature of part lower.In this case, because bigger flow, the temperature of returning of part stream is omited height, for example is 20 ℃ among the figure.This hot water of 20 ℃ mixes with the stream that returns of radiator loop as before, this means basis above, and in this case, the stream that returns of radiator water reduces about 12 ℃.Otherwise same input data as mentioned in this situation, obtain 58 liters 40 ℃ additional hot water, altogether 21 minutes through-flow time.
By the control computer on the heat pump, the size that the part that distributes from main flow flows can be regulated always.The example of control parameter can comprise following one or more:
The temperature of-main current after condenser,
-main current return the stream temperature,
The flow of-main current,
One or more temperature in the-water tank,
The temperature of-part stream after hot gas heat exchanger,
-hot gas temperature,
-part stream return the stream temperature,
The flow of-part stream,
The discharge rate of-hot water,
-respectively at the pressure of the cold medium loop of high-pressure side and low-pressure side
The output of-compressor.
Therefore, the control different things that can arrange to become different time provide preferentially.For example, specific the time, hot water production can give preferentially, yet in other situation, the heating of real estate can give preferentially.In addition, compressor can comprise capacity modulated compressor.This has advantage, and for example when hot water was discharged, the capacity of compressor can increase, so long as compressor is also in heap(ed) capacity work, so no matter colder return water and how all to obtain same service pipe temperature all the time.
Fig. 6 has shown alternative embodiment of the present invention.In this example, part flows the outlet that 62 recurrent canal is connected to condenser 60.This means and can not " use " energy with described mode above, still, on the other hand, this embodiment has advantage, and promptly when water tank 61 is filled fully, part flows 62 return and can help to heat radiator water.In addition, this has advantage, and promptly when water tank 61 was full of, part flowed 62 the temperature of returning that stream can not increase radiator water of returning, and this means that conversely the condensation temperature in the condenser does not increase, and the result has improved efficient.Yet, in this example, flowing when correspondingly not using during summer through radiator and condenser, in order to handle all heating, hot gas exchanger must do more.(not shown) in alternative embodiment can be provided with switching valve, and it can be with returning that adjustable mode connection layout 3A or part shown in Figure 6 flow.In this way, part stream returns and can connect according to best mode always.
The present invention also has another big advantage.Current available system has condenser and hot gas heat exchanger, and wherein condenser for example is used for heating, and hot gas heat exchanger is used for other purpose.For example for the reservoir water of circumference, hot gas heat exchanger can be placed in the reservoir case.In this situation, if the hot water tap opens slightly, if or hot water goes out from system leak with certain alternate manner, the demand of heat may be increased to and make hot gas begin condensation on hot gas exchanger in the reservoir case, and promptly required energy exceeds energy available in the hot gas in the reservoir.If it is enough big that heat demand becomes, under the situation of worst, all condensations may be crossed hot gas heat exchanger and be taken place, and are absorbed even also all energy are crossed hot gas heat exchanger.Except system has result's (because heat pump is forced to discharge the very big energy of the temperature difference) of non-constant efficient, there is not the remaining energy that is used for via condenser heating radiator water, next this may cause real estate to cool off, and may suffer frost damage.It is hot gas heat exchanger and the system combined use of VVC (hot water circuit) and the situation that is used to be connected to the big load (for example heat supply under the floor, towel rack) of this hot gas heat exchanger that another that may have an identical result uses the example of hot gas heat exchanger.Equally in this case, cross hot gas heat exchanger whole condensations may take place, the result has the mentioned problem in front.The present invention can avoid this problem on the other hand.In the present invention, from the returning and mix from returning of radiator system of leading water tank, this guarantees that condensation can occur in the condenser.If control computer discovery hot water production is not enough, that is to say return in very long a period of time for example too cold in 2 hours, for condensation does not take place in hot gas heat exchanger, no matter the priority of giving it how, part stream can be closed fully, or fully reduce, this is to carry out in simple mode by the temperature in the reading system with based on these parameter adjusting portion shuntings.
In the superincumbent explanation, the equipment with the part stream that distributes has only been described.Yet equipment can use with normal mode, especially in summer, when heating is not carried out.In this situation, all stream is used to make hot water, and heat pump moves as in the prior art basically.
In addition, in the superincumbent explanation, hot gas exchanger 35 is just described as hot gas heat exchanger.Yet, by the use of heat pump control computer, flow and compressor can be regulated temperature by controlling, this makes the condensation of specified quantitative to take place in hot gas heat exchanger, or alternatively, make condenser/undercooler 36 can partly be used as hot gas heat exchanger.Therefore, for situation about finding at that time, this system can be in all situations optimization.
Following Table I has shown the summary (heating mode) of modal ruuning situation, and what COP to produce hot water with.
| Running status | Heat demand | The hot water demand | Note |
| 1 | Greatly | Greatly | Operation continuously.A large amount of if desired instantaneous hot water, the energy in the radiator system is as buffering so.The COP of hot water production equals the COP of in |
| 2 | Greatly | Little | Operation continuously.The COP of the heating operation that the COP of hot water production equals to discuss. |
| 3 | Little | Little | Intermitten service when the needs heat.The COP of the heating operation that the COP of hot water production equals to discuss. |
| 4 | Little | Greatly | Intermitten service when the needs heat.If discharge in a large number, heat pump moves under the situation of cutting off heating.Condenser will heat the hot water through hot gas exchanger then, the described hot gas exchanger temperature that further raises.The COP of hot water production is slightly better than summer. |
| 5 | Do not have | Normally | (summer) hot gas does not assist to be used for heating.The COP of hot water production is as there not being operation under the situation of hot gas exchanger. |
In the superincumbent explanation, pass to the heat of water in the water tank and carry out by pipeline loop.Yet, certainly carry out this heat transmission with another way, for example, by using jacket water tank, it has the external jacket around water tank, and part stream passes the space circulation between water tank and the chuck, perhaps has different types of heat exchanger, for example plate type heat exchanger or the charging heat exchanger (charging heat changer), wherein radiator water gathers in water tank, and the water of tank top by the charging heat exchanger circulate to hot tap-water.In this case, circulating pump guarantees from the flowing enough greatly of water tank, so that the heating of enough hot tap-water to be provided.
In addition, in the superincumbent explanation, flow divider is used to make the part flow point to flow out.Yet, can use different equipment to replace flow divider to be used to make the part flow point to flow out, for example can use adjuster.
In the superincumbent explanation, condenser and hot gas heat exchanger as independent unit have been described.Yet these also can comprise a body unit, wherein, by the total stream of part acquisition of integral unit, and obtain partly stream by the different piece of this unit.
Claims (27)
1, a kind of control appliance of using with heat pump of being used for evaporimeter and condenser, wherein, be arranged to flow to liquid by the heat transfer medium in the heat transfer loop of described evaporimeter and compressor heating via first heat exchanger component and second heat exchanger component transmission heat, wherein, described heat transfer medium is arranged to give main liquid stream via described first heat exchanger component transmission heat, it is characterized in that: under heating mode, this control appliance comprises the device that is used to the part flow point that flows from described main liquid is flowed out and passes through this second heat exchanger component at least.
2, control appliance according to claim 1 is characterized in that: this control appliance comprises that being used to make the part that flows from described main liquid to flow flows through the device that distributes after described first heat exchanger component at described main liquid stream.
3, control appliance according to claim 1 and 2, it is characterized in that: described part stream is arranged to be used for the heat hot running water through after described second heat exchanger component, and described main liquid stream is arranged to by the recycle unit circulation through heating system under radiator and/or the floor.
4, control appliance according to claim 3, comprise that also the described part stream that is used for making through heating flows through or introduces water tank so that give the device of the water of described water tank with heat from described part flow transmission during described part stream flows through, described water tank comprises the inlet of supplying water to be heated and is used to discharge the outlet that has added hot water.
5, control appliance according to claim 4, wherein, described water tank comprises pipeline, described part stream is by described pipeline, so that heat is passed to water in the described water tank.
6, according to each described control appliance in the claim 3 to 5, it is characterized in that: after with described part stream heat hot running water, the described part stream that distributes is combined again with described main current.
7,, also comprise and regulate the control device of described part stream with respect to the ratio of total flow according to each described control appliance in the claim 1 to 6.
8, control appliance according to claim 7, wherein said control device comprises adjustable flow divider or choke valve.
9, according to claim 7 or 8 described control appliances, it is characterized in that: described control appliance also comprises the control device of for example controlling computer, to control described control device.
10, control appliance according to claim 9, wherein carry out based on one or more following parameters the control of described control device:
Temperature after the described condenser of-described main liquid stream process,
-described main liquid stream return the stream temperature,
The flow of-described main liquid stream,
One or more temperature in the-described water tank,
The temperature of the described part stream behind described second heat exchanger component of-process,
The temperature of-described hot gas,
-described part stream return the stream temperature,
The flow of-described part stream,
The hot water amount of-discharge,
-cold medium loop respectively at the pressure of high-pressure side and low-pressure side,
The output of-described compressor.
11, according to each described control appliance in the claim 1 to 10, it is characterized in that: the stream that returns of described part stream links together in the cold water side of described first heat exchanger component with the stream that returns that described main liquid flows.
12, according to each described control appliance in the aforesaid right requirement, it is characterized in that: described first heat exchanger component mainly comprises condenser, and described second heat exchanger component mainly comprises hot gas heat exchanger.
13, according to each described control appliance in the aforesaid right requirement, it is characterized in that: described first heat exchanger component and described second heat exchanger component comprise independent unit.
14, according to any described control appliance in preceding claim, it is characterized in that: electric heater cartridge is arranged in the following manner,, makes described main current described electric heater cartridge of process before described part flow point flows out that is.
15, a kind of control method of using with heat pump of being used for evaporimeter and condenser, wherein, via first heat exchanger component and second heat exchanger component heat is passed to liquid stream by the heat transfer medium in the heat transfer loop of evaporation and compression heating, wherein, described heat transfer medium is given main liquid stream via described first heat exchanger component transmission heat, it is characterized in that: this method also comprises and will flow out from the part flow point of described main liquid stream under heating mode at least and through the step of described second heat exchanger component.
16, control method according to claim 15, wherein, this control method also is included in described main liquid stream through after described first heat exchanger component, flows out the step of described part stream from described main liquid flow.
17, according to claim 15 or 16 described control methods, also be included in the step that flows the heat hot running water through described second heat exchanger component afterwards with described part, and the step that described main liquid stream is cycled through heating system under radiator and/or the floor.
18, control method according to claim 17, also comprise the described part stream that makes through heating flow through or introduces water tank so as described part flow by during heat is spread step to the water the described water tank from described part.
19, control method according to claim 18, wherein said part stream is by being arranged in the described water tank of pipeline process in the described water tank.
20, according to each described control method in the claim 17 to 19, it is characterized in that: after with described part stream heat hot running water, the described part stream that distributes is combined again with described main current.
21, according to each described control method in the claim 15 to 20, wherein, described part stream is conditioned with respect to the ratio of total flow.
22, control method according to claim 21, wherein, described part stream is based on respect to the ratio of described total flow that following one or more parameters regulate:
Temperature after the described condenser of-described main liquid stream process,
-described main liquid stream return the stream temperature,
The flow of-described main liquid stream,
One or more temperature in the-described water tank,
Temperature behind described second heat exchanger component of-described part stream process,
The temperature of-described hot gas,
-described part stream return the stream temperature,
The flow of-described part stream,
The hot water amount of-discharge,
-cold medium loop respectively at the pressure of high-pressure side and low-pressure side
The output of-described compressor.
23, according to each described control method in the claim 15 to 22, it is characterized in that: the stream that returns of described part stream is arranged to link together in the cold water side of described first heat exchanger component with the stream that returns that described main liquid flows.
24, according to each described control method in the claim 15 to 23, it is characterized in that: described first heat exchanger component mainly comprises condenser, and described second heat exchanger component mainly comprises hot gas heat exchanger.
25, according to each described control method in the claim 15 to 26, it is characterized in that: arrange electric heater cartridge in the following manner, that is, make described main current described electric heater cartridge of process before described part flow point flows out.
26, a kind of heat pump is characterized in that, it comprises according to each described control appliance in the claim 1 to 14.
27, a kind of heating system is characterized in that, it comprises according to each described control appliance in the claim 1 to 14.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE05015813 | 2005-07-06 | ||
| SE0501581-3 | 2005-07-06 | ||
| SE0501581A SE530407C2 (en) | 2005-07-06 | 2005-07-06 | Control device |
| PCT/SE2006/000835 WO2007004962A1 (en) | 2005-07-06 | 2006-07-05 | Control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101258364A true CN101258364A (en) | 2008-09-03 |
| CN101258364B CN101258364B (en) | 2011-06-22 |
Family
ID=37604728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800323389A Expired - Fee Related CN101258364B (en) | 2005-07-06 | 2006-07-05 | Control device and method, heat pump and heating system comprising the control device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1899653A4 (en) |
| CN (1) | CN101258364B (en) |
| SE (1) | SE530407C2 (en) |
| WO (1) | WO2007004962A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946130A (en) * | 2008-12-09 | 2011-01-12 | 达克斯制造有限公司 | Water heating system and method for operating thereof |
| CN106885289A (en) * | 2017-03-24 | 2017-06-23 | 中国电力科学研究院 | A kind of electric heating system and its control method |
| CN110050163A (en) * | 2016-10-31 | 2019-07-23 | 热美亚有限公司 | Method for controlling the compressor of heat pump |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE523738T1 (en) * | 2008-03-20 | 2011-09-15 | Daikin Ind Ltd | HEATING AND CONTROL METHOD FOR HEATING |
| FR2955381A1 (en) * | 2010-01-19 | 2011-07-22 | Michel Charles Albert Barbizet | METHOD FOR THE VALORISATION OF LOW TEMPERATURE THERMAL ENERGY IN MULTI-GENERATION SYSTEMS |
| DE102018111056A1 (en) * | 2018-05-08 | 2019-11-14 | Stiebel Eltron Gmbh & Co. Kg | Heating and / or water heating system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2355167C3 (en) * | 1973-11-05 | 1981-10-01 | Siemens AG, 1000 Berlin und 8000 München | Heating device with a hot water tank and a heat pump |
| SE389188B (en) * | 1973-12-20 | 1976-10-25 | Projectus Ind Produkter Ab | PROCEDURE AND DEVICE FOR HEATING FLUID IN DIFFERENT CIRCUITS FOR DIFFERENT FORMS BY MEASUREMENT OF A HEAT PUMP, INCLUDING A REFRIGERATOR CIRCUIT WITH AN EXPANSION VALVE, AN EVAPORATOR, A COMPRESSOR AND A CONDENSER APPLIANCE |
| DE2711144A1 (en) * | 1977-03-15 | 1978-09-28 | Hannover Braunschweigische Str | Heat pump for room and water heating - has refrigerant superheated by compression to liquefy refrigerant in heating circuits |
| DE2819962A1 (en) * | 1978-05-08 | 1979-11-15 | Thyssen Industrie | HEATING SYSTEM WITH AIR/WATER HEAT PUMP FOR SPACE HEATING AND/OR DOMESTIC WATER PRODUCTION, WITH AN AIR COLLECTOR FOR CONVERTING SOLAR ENERGY INTO HEAT |
| US5465588A (en) * | 1994-06-01 | 1995-11-14 | Hydro Delta Corporation | Multi-function self-contained heat pump system with microprocessor control |
| DE19535479A1 (en) * | 1995-09-23 | 1997-03-27 | Mele Versorgungstechnik Kg | Process releases coolant super heating enthalpy to drinking water |
| EP0984226B1 (en) * | 1998-09-03 | 2003-07-02 | Alpha-InnoTec GmbH | Method for preparing warm sanitary and heating water and associated heating apparatus esp. compact heating apparatus |
-
2005
- 2005-07-06 SE SE0501581A patent/SE530407C2/en not_active IP Right Cessation
-
2006
- 2006-07-05 CN CN2006800323389A patent/CN101258364B/en not_active Expired - Fee Related
- 2006-07-05 EP EP06758024.1A patent/EP1899653A4/en not_active Withdrawn
- 2006-07-05 WO PCT/SE2006/000835 patent/WO2007004962A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946130A (en) * | 2008-12-09 | 2011-01-12 | 达克斯制造有限公司 | Water heating system and method for operating thereof |
| CN103604208B (en) * | 2008-12-09 | 2016-03-30 | 达克斯制造有限公司 | Water heating system and method for operating thereof |
| CN110050163A (en) * | 2016-10-31 | 2019-07-23 | 热美亚有限公司 | Method for controlling the compressor of heat pump |
| CN110050163B (en) * | 2016-10-31 | 2022-02-22 | 热美亚有限公司 | Method for controlling a compressor of a heat pump |
| CN106885289A (en) * | 2017-03-24 | 2017-06-23 | 中国电力科学研究院 | A kind of electric heating system and its control method |
| CN106885289B (en) * | 2017-03-24 | 2021-01-15 | 中国电力科学研究院 | Electric heating system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007004962A1 (en) | 2007-01-11 |
| SE0501581L (en) | 2007-01-07 |
| EP1899653A1 (en) | 2008-03-19 |
| EP1899653A4 (en) | 2015-02-18 |
| SE530407C2 (en) | 2008-05-27 |
| CN101258364B (en) | 2011-06-22 |
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