CN100449218C - Method and device for recovering energy - Google Patents
Method and device for recovering energy Download PDFInfo
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- CN100449218C CN100449218C CNB2004800097105A CN200480009710A CN100449218C CN 100449218 C CN100449218 C CN 100449218C CN B2004800097105 A CNB2004800097105 A CN B2004800097105A CN 200480009710 A CN200480009710 A CN 200480009710A CN 100449218 C CN100449218 C CN 100449218C
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- Y02B30/123—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Abstract
Existing energy recovery systems are used in the fields of air conditioning and ventilation for recovering energy from the outgoing air or external air. In conventional energy recovery systems, the thermal output linearly decreases with a decreasing difference in temperature between the outgoing air and external air. The energy recovery should be significantly increased with a low amount of expense. Subsequent to an energy recovery system (10), additional thermal energy is extracted from a used air volume flow AB, which is coming from an air-conditioned room, by another system, which consists of a heat pump (3), a heat exchanger (1), another heat exchanger (2), an accumulator circuit (9), an energy accumulator (9.1), and of a mixing valve (6). The associated supply air volume flow ZU is, when heating, additionally heated by the heat pump (3) by means of thermal energy from the used air volume flow AB. This results in increasing the energy yield from the used air volume flow AB. The temperature of the supply air is regulated. When cooling, the supply air volume flow ZU is cooled to the desired supply air temperature. The novel method and the associated device enable a constant remaining energy yield from the outgoing air FO or external air AU for heating or cooling the supply volume flow ZU. The recovery of heat is practically 100 %. It is possible to operate an air treatment unit without an additional heating or cooling device.
Description
Technical field
The present invention relates to a kind of method and apparatus that energy reclaims that is used for.
Background technology
Heat reclaiming system, have the equipment of UTILIZATION OF VESIDUAL HEAT IN and accumulation of heat heat carrier and have intermediate medium or the equipment of heat pump is used for from waste gas or discharges air recovering energy in air-conditioning and aeration technology.
Heat recovery system has been described in the literature from every side.This system uses known to the public and often.Can reach 0.8 at this according to the so-called heat energy recovery rate of reported in literature.
Munich Oldenboug industry publishing house publish calendar year 2001 by Reckangel, in the 1367th page of " the Taschenbuch f ü r Heizung+Klimatechnik01/02 " that Sprenger, Schramek write and the continued page the different technology that is used for heat recovery has been described.Be also referred to as system at this with a heat pump.
" Handbuch derKlimatechnik " third edition second volume of publishing in Karlsruhe C.F.Mueller GmbH publishing house: can find other explanation in " Berechung und Regelung " the 115th page and the continued page about heat recovery system in ventilation equipment.
In traditional heat recovery system, use the heat exchanger of different structure form therein, the thermal efficiency is linearly along with being descended by the temperature difference between air of discharging in the ventilation equipment and the outside air that is transported to ventilation equipment.If outside air temperature improves under the situation of heating, the temperature difference between then outside air flows with the exhaust volume of discharging by ventilation equipment reduces.Therefore can from exhaust volume stream, obtain energy still less and be delivered to the outside air of carrying as charge volume stream.Therefore must follow by a heater to external world air heat again.
Under the refrigeration situation,, promptly, outside air temperature from the exhaust volume that constitutes the discharge air flows, can only obtain part energy because descending owing to identical.
Outside air also must be followed and heat by a heater under the situation of heating again or freeze by a cooler under the refrigeration situation again.
Also knownly connect a heat pump and heat by additional by the cooler refrigeration of combination or a heat pipe back a heat exchanger back.Two said system can only be regulated conditionally, for example switching on and off or compressor by rotational speed regulation by multiple-pole switch.Refrigeration is sometimes also regulated with a hot-air bypath and is complementary.This method is because relevant therewith energy consumption is used fewer and fewerily.
The neither one system can be in the continuous adjusting on the gamut that is implemented in different external temperatures under the situation that does not reduce so-called energy value.The variable-volume stream that uses more and more in modern air conditioning equipment can not freeze or heat by said system.
Can not effectively or can not or can only regulate from freezing by air mixer by at present known system with worse efficient to the conversion of heating mode with from being heated to the conversion of refrigeration mode.
Document DE 921 18937 U1 disclose a kind of device that is used for constituting air-conditioning in building.This device has the heat carrier of an accumulation of heat between charge volume stream and exhaust volume stream.The evaporimeter of a heat pump is set in this heat carrier back.In exhaust volume stream, the heat carrier of another accumulation of heat and the condenser of heat pump are set.Be provided with second ambient air stream in order to improve energy recovery rate in parallel with the ambient air stream of supplying with building.The evaporimeter of described heat pump and condenser are separately positioned on another ambient air stream the inside, therefore energy can be delivered to second ambient air stream from first ambient air stream by heat pump.
By DE 19500527 A1 a kind of air-conditioning equipment is disclosed in addition.This air-conditioning equipment has charge volume stream and an exhaust volume stream, they two by a heat exchanger conveying.To heat exchanger additional evaporimeter or condenser that connects a heat pump in charge volume stream or in exhaust volume stream.Described heat pump can only realize that the energy an of the best reclaims for a definite use occasion.Can derive this energy from the design parameter of heat pump efficiency reclaims.
A kind of heat pump-air-conditioning equipment with energy circulation is disclosed among these external DE 19851889 A1.Air inlet and exhaust are carried by a public heat exchanger in air-conditioning equipment.In air inlet, can add another heat exchanger that in first coupling connection loop, joins of connection with a hot water tank coupling to heat exchanger.This hot water tank in one second coupling connection loop with the condenser coupling connection of a heat pump.The evaporimeter of this heat pump can load by an exhaust tributary.In addition another part exhaust by heat exchanger conduction and make another more the exhaust of fraction mix with air inlet.The formation of this air-conditioning equipment takes a lot of trouble, unfavorable adjusting and need an additional refrigeration unit for the refrigeration situation, and it must be switched to the air inlet the inside by another heat exchanger.
Therefore by the described state of the art for traditional ventilation equipment for heat or again the refrigeration charge volume miscarriage that will be produced give birth to a very significantly surcharge of equipment aspect.
Summary of the invention
Therefore the objective of the invention is, be used in the method and apparatus that air-conditioning and aeration technology equipment recover energy, avoiding above-mentioned defective and improving the heat recovery rate significantly with good controllability at one.
For this reason, the present invention proposes a kind of method of recovering energy at air-conditioning and aeration technology equipment of being used for, has a device and a device that is used to control exhaust volume stream that is used to control charge volume stream, has the heat recovery system and the heat pump that constitute by one or more heat exchangers that connects air inlet and exhaust volume stream in order between air inlet and exhaust volume stream, to carry out heat to transmit, described heat pump is in order to replenish conveying capacity and to be arranged between charge volume stream and the exhaust volume stream or joining being attached to heat recovery system between charge volume stream and the exhaust volume stream and flowing and/or flow coupling with exhaust volume by heat exchanger and charge volume, wherein
-by the heat energy of first heat exchanger exchange from the exhaust volume stream that heat recovery system is discharged with heat pump coupling connection,
-heat energy of exchange is delivered in one the first storage circulation by heat pump and second heat exchanger with heat pump coupling connection, it is for transferring heat energy and heat exchanger coupling connection and comprise one first accumulator, and
-will be delivered to heat energy in the first storage circulation to be delivered to the charge volume stream of discharging by one the 3rd heat exchanger and to be used for the heating air inlet volume flow by heat recovery system; Perhaps the heat energy that will be flowed by the charge volume that heat recovery system is discharged is delivered in the first storage circulation by one the 3rd heat exchanger and is used to cool off charge volume stream,
Being adjusted in the 3rd heat exchanger that the is attached to charge volume stream of-heat energy component that transmitted realizes by the flow of first accumulator and the 3rd heat exchanger by being controlled at the circulating fluid that contains in the first storage circulation.
In addition, the present invention also proposes a kind of device of recovering energy at air-conditioning and aeration technology equipment of being used for, has a charge volume stream and an exhaust volume stream, has one in order between air inlet and exhaust volume stream, to carry out the heat recovery system that heat transmission connects charge volume stream and exhaust volume stream, this heat recovery system comprises the heat exchanger of an accumulation of heat or heat exchanger or a storage substance heat exchanger or heat pipe of a UTILIZATION OF VESIDUAL HEAT IN, with have a heat pump, described heat pump is in order to be transported to energy charge volume stream or exhaust volume stream and to be attached to heat recovery system and joining by heat exchanger and charge volume stream and/or exhaust volume stream coupling, perhaps described heat pump need not to be additional to heat recovery system ground by heat exchanger and charge volume stream and/or exhaust volume stream coupling connection, wherein, one first storage circulation, it is arranged between the 3rd heat exchanger after the additional heat recovery system that is connected in the charge volume stream of heat pump and, and wherein said heat delivery can be regulated in the first storage circulation.
The present invention is made up of the combination of a known heat recovery system and a system, this system forms the additional heat recovery system the inside that is connected in the charge volume stream of this heat exchanger by a heat pump, a storage circulation and the heat exchanger with storage circulation coupling connection.The additional heat recovery system the inside that is connected in the exhaust volume stream of another heat exchanger.Two heat exchangers are wherein also handled a side in air inlet heat pump are connected with the storage circulation by means of another heat exchanger by heat pump coupling connection, and this storage circulation is furnished with an accumulator and a mixing valve.
Acting in conjunction by the said structure parts can realize the adjusting that heat is transmitted.This point also needs for the qualification of intake air temperature.
The temperature of the circulating fluid in the storage circulation is placed in high in this wise, and feasible operation for heat pump realizes a sufficiently high condensation temperature.This point considers that according to compressor manufacturing merchant's explanation the temperature of exhaust volume stream, version and the vapor (steam) temperature that is arranged on heat exchanger there calculate.If for the temperature difference in the middle of in the heat exchanger in the charge volume stream, reaching need be in circulating fluid a higher temperature, therefore select to be used to reach the temperature of the temperature difference of required centre.Always reach the heat pump energy value an of the best by this method, still also guarantee to realize heat exchange in the heat exchanger in charge volume stream.
Described intake air temperature is regulated by mixing valve, and this mixing valve for example can be made of the triple valve with an adjuster and a motor.Strengthen the circulating fluid volume flow in the heat exchanger that is transported to charge volume stream when under heating state, for example being lower than desired intake air temperature.And when surpassing desired intake air temperature, reduce to be transported to the circulating fluid volume flow of the heat exchanger in the charge volume stream on the contrary.
If owing to any reason makes the exhaust volume rheology little, evaporating temperature is descended, because less heat is provided.The decline of described evaporating temperature is determined by a pressure sensor in the compressor front, also can be selected to determine by a temperature sensor.When evaporating temperature drops to a set-point when following, the adjuster close compressor.Charge volume stream is by the heat energy heating from accumulator then.Be used for connecting compressor again after compressor stops required downtime.
Stream is regulated by the energy from accumulator if heat pump, then makes charge volume owing to the maximum temperature that reaches circulating fluid disconnects, and keeps steady temperature by mixing valve.If circulating fluid turns cold again, then reclose heat pump, so that transfer energy to circulating fluid and accumulator again from exhaust volume stream.
Carrying out one in the heat pump with a compressor disconnects constantly and connects.High-efficiency heat pump is furnished with a plurality of compressors.If a plurality of compressors are installed in heat pump, are then realized compressor switching on and off in a continuous starting circuit.Also can use the rotational speed regulation pattern as compressor.The size of described accumulator can design forr a short time in this case, but this may reduce energy value.
Described accumulator can design greatly like this from capacity, makes that to be used for liquid volume time interval more required than the downtime of the compressor that is used for the heat pump minimum in the required time interval of circulating fully longlyer lasting.Can make the circulating fluid volume flow that enters preferably be transported to accumulator for fear of in accumulator, producing turbulent flow by a blast tube.In accumulator, play the effect of a favourable laminar flow thus.
How described exhaust volume stream be cooled like this in order to obtain energy as much as possible, as transmitting necessary for heat.If freezing on the heat exchanger in exhaust volume stream do not produce obstruction, perhaps, then can need not other heater ground by the heat pump of a corresponding power and reach required intake air temperature in the heat exchanger back that charge volume flows because exhaust is regulated and not produced icingly.
By using heat pump and, can being delivered to outside air than from discharge air, taking out more energy for the required electric consumption power of operation of heat pump.
Under the refrigeration situation, flow accumulation of heat air cooling to external world by described invention for charge volume.This point realizes conversely by making the heat pump refrigerating circulation.Also can realize a constant intake air temperature adjusting at this.
Be also advantageous in that described below favourable function by what the present invention can realize:
1. realize a king-sized heat recovery.The transmission efficiency WRG that realizes by heat recovery system is replenished by the heat pump that constitutes in combinations thereof.Can from exhaust volume stream, obtain the more multipotency more required than heating air inlet volume flow.Unnecessary energy also can select to be used for the heat industrial water, for example also is used for heating later at adiabatic ground of charge volume stream humidification.
Compare because adjustable heat recovery system heat recovery rate value surpasses 1 with other heat recovery system, and economic heat recovery rate maximum reaches 0.8 in known heat recovery system.
For example:
Described exhaust volume stream is by a Circulant Composite Systems, and it has one 0.47 heat recovery rate, and 24 ℃ when combining from 50% relative humidity with heat pump are cooled to 6.8 ℃:
h
EIN＝43.2
h
AUS＝21.6
Δh＝21.5
Described outside air enters with 10 ℃ when 70% relative humidity.31 ℃ state when described charge volume stream carries out the transition to 19% relative humidity by processing.
h
EIN＝23.4
h
AUS＝43.7
Δh＝21.5
Obtain heat recovery rate thus:
2. under the situation that the overwhelming majority need heat, needn't pass through additional heater heating air inlet volume flow ZU again.
3. how outside air AU is cooled off like this, and making no longer needs the cooler by additional to cool off again.Can save the cooler in ventilation equipment.
4. the shaft power that receives by the air inlet machine becomes littler, because remove required for this reason dynamic differential pressure by saving aerial cooler.
5. described air intake apparatus becomes littler and lighter owing to save air heater.
6. the refrigeration machine that in most of the cases no longer needs other for air inlet cooling and distributing building refrigeration.
7. the present invention can use or central authorities are integrated in air conditioner unit the inside dispersedly.
8. the present invention can be used for for example concentrated parallel running of a plurality of ventilation equipment.
Description of drawings
The present invention exemplarily is shown and is discussed in more detail below by means of the sketch of these apparatus and method.
Fig. 1 illustrates the system diagram of first scheme of the present invention, has an accumulator,
Fig. 2 illustrates the system diagram of alternative plan of the present invention, has two accumulators,
Fig. 3 illustrates the system diagram of first scheme of the present invention when being used for ventilation equipment in parallel,
Fig. 4 illustrates the system diagram of alternative plan of the present invention when being used for ventilation equipment in parallel.
The specific embodiment
According to being configured among the exhaust volume stream AB at the heat exchanger 2 in a heat recovery system 10 back according to the first embodiment of the present invention of Fig. 1, this exhaust volume stream becomes discharge air FO by the processing of aeration technology.At opposite side, described heat recovery system 10 and a charge volume stream ZU coupling connection, this charge volume stream obtains from outside air AU by the processing of aeration technology.Described heat recovery system 10 can for example be made of KVS (circulation) system, rotary heat exchanger or flat plate heat exchanger, light pipe heat carrier, storage substance heat exchanger or heat pipe according to a kind of known version.Described heat exchanger 2 and heat pump 3 coupling connection and under heating state, play heat pump 3 evaporimeter effect and in the effect of selecting to play under the refrigeration situation condenser of heat pump 3.Another heat exchanger 4 is set in the kind of refrigeration cycle of heat pump 3, it under heating state as condenser and under the refrigeration situation as evaporimeter.Among this external charge volume stream ZU also with a heat exchanger 1 is additional be connected heat recovery system 10 after.This heat exchanger 1 is coupled into storage circulation 9 the insides.In this storage circulation 9, also be coupled into heat exchanger 4 with heat pump 3 couplings connection.Has an accumulator 9.1 in this external storage circulation 9.This storage circulation 9 and accumulator 9.1 are full of with the circulating fluid of storing heat, and this circulating fluid is circulated by a pump.
The circulating fluid that is used between heat exchanger 1 and heat exchanger 4, the carrying out heat delivery liquid that can be water, water-ethylene glycol mixture or other use at refrigeration and air-conditioning technical.
The temperature of described circulating fluid in storage circulation 9 is selected highly like this under heating state, make to guarantee for the required minimum condensation temperature of heat pump 3, but also can make the medium temperature difference in heat exchanger 1 big like this, make heat energy can be delivered to outside air AU, it is handled the back at described aeration technology and constitutes charge volume stream ZU.Temperature at described circulating fluid in storage circulation 9 under the situation of selecting refrigeration is selected lowly like this, makes outside air AU be cooled to desired intake air temperature in charge volume stream ZU.
The temperature levels of described circulating fluid and thus the adjusting of the temperature of charge volume stream ZU by a mixing valve 6 or also can select to regulate by the interconnecting device of a hydraulic pressure.This mixing valve 6 can be made of 3 logical valves with adjuster and motor.
In order to regulate the temperature levels of circulating fluid, described mixing valve 6 is arranged on a branch road the inside of storage circulation 9, and two A of branch and the B of storage circulation 9 converge to this branch road the inside.An A of branch of this branch road directly is connected with heat exchanger 1 as feedback pipeline.Second B of branch is connected with the conveyance conduit that is used for heat exchanger 1 from accumulator 9.1.Can make through-flow two A of branch of the different circulation fluid scale of constructions and B and form a mixed flow A-B thus by regulating described mixing valve 6.Can make heat consumption on the heat exchanger 1 by this method from the maximal regulated to the minimum level.There is not circulating fluid to be transported to heat exchanger 1 by heat exchanger 1 conveying under the situation in minimum fully at described circulating fluid under the situation of maximum.Directly additional be connected on the heat exchanger 4 accumulator 9.1 always with the whole liquid amount through-flow and receive simultaneously 3 that provide by heat pump, but can't help the heat of heat exchanger 1 conversion.Heat energy from accumulator 9.1 can be given to charge volume stream ZU by heat exchanger 1 when disconnecting heat pump 3 equally.
If the ice attachment of interference in heat exchanger 2, occurs, the temperature of the described circulating fluid that then raises.Temporarily interrupt for the described kind of refrigeration cycle of unacceptable ice attachment thickness, make described heat exchanger 2 can't help heat pump cooling, and exhaust volume stream AB melts the ice attachment again.Also can be chosen in this position and use a Defrost heater that independently is used for heat exchanger 2.Existence ice attachment whether can be for example determined by the difference gauge 5 in the front and back of heat exchanger 2 on the exhaust volume stream (AB).Also can select by improving the definite ice of air pressure attachment in the exhaust volume stream AB of heat exchanger 2 fronts.
Described heat pump 3 is switched on or switched off by the temperature sensor that generally uses in Refrigeration Technique.If the temperature in the kind of refrigeration cycle of heat pump 3 is too high, then disconnect compressor, perhaps compressor is switched on or switched off according to temperature for bigger, for example multi-stage heat pump.When in kind of refrigeration cycle, being lower than permissive temperature, disconnect compressor equally.
The additional thermal source that may need can be with its energy by selectable heat exchanger 16 outputs, and this heat exchanger is coupled into the conveyance conduit the inside of leading to heat exchanger 1 in the storage circulation 9.The adjusting of this heat energy transmission realizes by mixing valve 6 in simple mode.
Under the situation of air circulation operation, heat recovery does not wherein take place, and heat in service can the utilization by additional mode again at ventilation equipment yet and store circulation 9.Move ahead and return the temperature operation with low at this PWW (pump hot water) that can make firing equipment by simple method, pump hot water is by heat exchanger 16 heating storage circulations 9.Can realize also that thus the fuel value technology is as the application of heating system in aeration technology.On heat exchanger 16, for example use a flat plate heat exchanger for this reason, preferably connect a fuel value boiler, it has been worked when low temperature very effectively.
For the charge volume of cooling stream ZU be used to cool off the selectable punction of outside air AU by kind of refrigeration cycle is realized to heat pump 3 by the known devices changing-over.
For the selectable humidity regulation of charge volume stream ZU under the refrigeration situation, another heat exchanger 7 is configured in the back of the heat exchanger 1 among the charge volume stream ZU.This heat exchanger 7 is by flowing ZU by refrigerant just like the energy that provides free is given to the charge volume of drying in advance and cooling down with heat.Temperature at this charge volume stream ZU is regulated by a mixing valve 8.And the selectable humidity regulation of charge volume stream ZU joins with storage circulation 9 couplings and will describe in a second embodiment below under heating state.
For the heat that improves under the refrigeration situation is discharged, in exhaust volume stream AB, between the heat exchanger 2 of heat recovery system 10 and heat pump 3, have a device and be used for freezing adiabaticly.Improve significantly in this locational heat in simple mode thus and transmit.
Can in charge volume flows passage between ZU and the exhaust volume stream AB, air valve be set in known manner and be used to make mixing air to be transported to the operation of a charge volume stream ZU or an aforesaid circulating air from exhaust volume stream AB in order to influence air-treatment.When using mixing air, can improve air volume flow, more thermal energy is received by condenser with low air themperature by using air valve.Also can produce the cold water that is used for a possible distributing refrigeration thus.Described cold water can obtain from accumulator 9.1.
Described evaporation and condensation temperature also can be selected to regulate by pressure sensor.
In kind of refrigeration cycle in order to heat the additional heater of packing into of the water for industrial use with high temperature levels.
The second embodiment of the present invention is used to improve the thermal energy transfer when different air inlets and/or exhaust volume stream.A this equipment that is used to produce different volumes stream shown in Figure 2.
The structure that has a storage circulation 9 according to improvement of the present invention in the air inlet side of heat pump 3, it has heat exchanger 1, heat exchanger 4 and accumulator 9.1 and the A of branch of storage circulation 9 and the mixing valve 6 between the B, as what described by means of Fig. 1 in the above.
But according to the not through-flow refrigerant of heat exchanger 2 described in the structure of Fig. 2 from heat pump 3.Described here heat exchanger 2 uses liquid/air heat exchanger.Described heat pump 3 is set up another circulation of storage with an accumulator 12.1 12 in the discharge air side of system.This storage circulation 12 is by one the 4th heat exchanger 13 and heat pump coupling connection.Described in this case heat exchanger 13 plays the evaporimeter that is used for heat pump 3 or the effect of condenser selectively.Therefore can be under the refrigeration situation and make full use of the compressor horsepower of described heat pump 3 under the heating state.Described storage circulation 12 and accumulator 12.1 are full of by the circulating fluid of storing heat equally, and circulating fluid is by a pump circulation.The adjusting of the fluid flow in storage circulation 12 realizes by a mixing valve 14.Set up the A of branch and the B of storage circulation 12 for mixing valve 14.The A of branch directly is connected with heat exchanger 2 as Returning pipe.B of branch is connected with the input channel that leads to heat exchanger 2 from accumulator 12.1.By regulating the flow that mixing valve 14 can be adjusted in the circulating fluid in the storage circulation 12, from the limiting condition of complete through-flow heat exchanger 2 up to disconnecting heat exchanger 2.Described accumulator 12.1 is directly additional to be connected on the heat exchanger 13 and through-flow whole liquid amount.
By circulating fluid heat energy is delivered to by heat exchanger 2 and discharges air FO., opening through-flow on the mixing valve 14 and making the heat energy intermediate storage storage circulation 12 that to bring into by heat pump 3 because the ice attachment on the heat exchanger 2 when surpassing a set-point when differential pressure from the B of branch towards A-B.Said heat exchanger 2 rests.Ice attachment in heat exchanger 2 melts and makes pressure reduction reduce the mixing valve 14 of back in storing circulation 12 thus opens the branch of leading to A-B from A, and makes heat energy continue to be delivered to exhaust volume stream AB and to be delivered to discharge air FO thus by heat exchanger 2.
Except as according to described in first embodiment of Fig. 1 for the refrigeration situation humidity regulation in (summer) also can have and be used for the heating state humidity regulation in (winter).In charge volume stream ZU, another heat exchanger 11 is set for this reason.This heat exchanger is connected with accumulator 12.1 of another storage circulation 12 and adds in charge volume stream ZU and is connected in a damping device.The final temperature that mixing valve 15 is regulated flow and regulated charge volume stream ZU thus.
Institute's energy delivered is stored in accumulator 9.1 and 12.1 the insides and also passes to outside air AU or charge volume stream ZU and exhaust volume stream AB continuously or discharge air FO in the stopped status of compressor.
Especially accumulator 9.1 this can be directly or indirectly by storage circulation 9 be used for the attachment device that heat inputs or outputs and be connected so that utilize its energy capacity fully.
The additional thermal source that may need is delivered to storage circulation 9 with energy by selectable heat exchanger 16.The adjusting of this thermal energy transfer realizes by mixing valve 6.
As what described in first embodiment, described equipment can be by a heater according to the fuel value technique complementary in this position.When ventilation equipment in service or in servicely can realize this point during with low water temperature operation heating again at circulating air.Move ahead and return the temperature operation with low at this pump hot water that can make firing equipment by simple mode, pump hot water is by heat exchanger 16 heating storage circulations 9.
If use a heat pump, also can use the present invention, and need not this heat pump is set up additional first a traditional heat recovery system in the first recovery level in very favorable mode.
Described invention not only can and can move with multi-stage heat pump with single-stage.
In ventilation shaft, except above-mentioned essential unit, can also use other unit that is used for air-treatment, as filter, muffler or humidifier in the mode of being familiar with.Also can make common realizing by a mixing air valve to discharging Air mixing in air-conditioning technical for the energy value that improves heat pump 3 and in order to discharge net quantity of heat at different volume flows from outside air.As mentioned above, described equipment is equally applicable to the circulating air operation.
Shown in Fig. 3 and 4, the present invention also can be used for the operation of unit equipment.Be connected with a plurality of ventilating systems 17,18 by storage circulation 19 or 20 by very economical mode at this heat pump 3.One shown in Figure 3 has two storage circulations 19 or 20 that are used for two ventilation equipment 17,18.These ventilation equipment 17,18 can freeze and heat operation in service independently of each other.Use accumulator 19.1 or 20.1, one accumulator 19.1 or the 20.1. that are used to heat operation that are used for refrigerating operaton respectively for this reason
Simplify a unique accumulator 19.1 in storage circulation described in Fig. 4 19,, then use this embodiment when described ventilation equipment 17,18 are general only in heating use in service the time.
When heat pump during, also can use the present invention in addition with the condenser of an outside or evaporimeter operation.Can support the efficient of heat pump thus in particularly advantageous mode.
The present invention's use that can combine with the air-conditioning of various sizes series and ventilating system promptly for example also can be used for the heating of hall air-conditioning or hall.
Last the present invention also is applicable in very favorable mode and replenishes already present equipment, because described heat pump can be associated on the existing ventilation equipment as the construction unit coupling by the storage circulation.
The present invention is not limited to described embodiment, but also can realize in a variety of forms in professional person's ken.
Reference numeral
Charge volume stream ZU
Exhaust volume stream AB
Discharge air FO
Outside air AU
The A of branch
The B of branch
The A-B of branch
Heat exchanger 1
Heat exchanger 2
Heat exchanger 4
Mixing valve 6
Heat exchanger 7
Accumulator 9.1
Accumulator 12.1
Mixing valve 14
Accumulator 19.1
Accumulator 20.1
Claims (22)
1. one kind is used for the method that recovers energy at air-conditioning and aeration technology equipment, has a device and a device that is used for directing exhaust gas volume flow (AB) that is used to guide charge volume stream (ZU), has the heat recovery system (10) and the heat pump (3) that constitute by one or more heat exchangers that connects in order between charge volume stream and exhaust volume stream, to carry out heat to transmit that charge volume stream and exhaust volume flow, described heat pump (3) is in order to replenish conveying capacity and to be arranged between charge volume stream (ZU) and the exhaust volume stream (AB) or joining being attached to heat recovery system (10) between charge volume stream (ZU) and the exhaust volume stream (AB) and flowing (ZU) and/or flow (AB) coupling with exhaust volume by heat exchanger and charge volume, it is characterized in that
-by the heat energy of first heat exchanger (2) exchange from the exhaust volume stream (AB) that heat recovery system (10) is discharged with heat pump (3) coupling connection,
-heat energy of exchange is delivered in one the first storage circulation (9) by heat pump (3) and second heat exchanger (4) with heat pump (3) coupling connection, it is for transferring heat energy and heat exchanger (4) coupling connection and comprise one first accumulator (9.1), and
-will be delivered to heat energy in the first storage circulation (9) to be delivered to the charge volume of discharging by one the 3rd heat exchanger (1) and to flow (ZU) and be used for heating air inlet volume flow (ZU) by heat recovery system (10); Perhaps the heat energy that will be flowed by the charge volume that heat recovery system (10) is discharged is delivered to by one the 3rd heat exchanger (1) and is used to cool off charge volume stream in the first storage circulation (9),
Being adjusted in the 3rd heat exchanger (1) that is attached to charge volume stream (ZU) of-heat energy component that transmitted by being controlled at the flow realization of the circulating fluid that contains in the first storage circulation (9) by first accumulator (9.1) and the 3rd heat exchanger (1).
2. the method for claim 1 is characterized in that,
The energy that at least a portion is taken out is delivered to first by heat pump (3) and second heat exchanger (4) that is coupled into first storage circulation (9) the inside and stores circulate (9) or first accumulator (9.1).
3. the method for claim 1 is characterized in that, and is described
-always in the charge volume stream (ZU) of heat recovery system (10), take out heat energy in order to cool off charge volume stream (ZU) by the 3rd heat exchanger (1) with first storage circulation (9) coupling connection,
-from the first storage circulation (9), take out the heat energy of at least a portion taking-up by heat pump (3) and second heat exchanger (4) that is coupled in the first storage circulation (9), and
-will store the heat energy that takes out the circulation (9) from first to be delivered to the exhaust volume stream (AB) of discharging by heat pump (3) and first heat exchanger (2) by heat recovery system (10).
4. method as claimed in claim 3 is characterized in that,
-for coolant exhaust volume flow (AB) takes out heat energy by adiabatic cooling from the exhaust volume stream (AB) of being discharged by heat recovery system (10), and
-be transported to first heat exchanger (2) in order to store the thermal energy transfer of circulate (9) taking out to the exhaust volume stream (AB) that the exhaust volume stream (AB) that cools off upward will cool off from first.
5. as claim 3 or 4 described methods, it is characterized in that,
-for heating air inlet volume flow (ZU) again so that regulate the humidity of the charge volume stream (ZU) of cooling, with the 5th heat exchanger (7) of the hot gas circulation coupling connection of heat pump (3) heat energy is transported to the charge volume stream (ZU) of discharging from the 3rd heat exchanger (1) that is connected with the first storage circulation (9) by one, and
-charge volume of heating is flowed the space that (AB) is transported to an air-conditioning.
6. as each described method in the claim 1 to 4, it is characterized in that the volume flow of a variation of described exhaust volume stream (AB) and/or charge volume stream (ZU) is regulated by following method step and realized:
Heat energy in the exhaust volume stream (AB) of-discharge from heat recovery system (10) exchanges by first heat exchanger (2) and the second storage circulation (12) that comprises second accumulator (12.1),
-heat energy of at least a portion exchange is delivered to first storage circulation (9) from the second storage circulation (12) by second heat exchanger (4) with first storage circulation (9) coupling connection that contains first accumulator (9.1) by the 4th heat exchanger (13) and a heat pump (3) with heat pump (3) coupling connection, and
-at least a portion is delivered to first heat energy of storing in the circulation (9) be delivered to the charge volume stream (ZU) of discharging by the 3rd heat exchanger (1) from heat recovery system (10).
7. method as claimed in claim 6, it is characterized in that being adjusted in first heat exchanger (2) that is attached to exhaust volume stream (AB) of the heat energy component that is transmitted realizes by the flow of second accumulator (12.1) and first heat exchanger (2) by circulating fluid that contains of control in the second storage circulation (12).
8. one kind is used for the device that recovers energy at air-conditioning and aeration technology equipment, has charge volume stream (ZU) and an exhaust volume stream (AB), has one in order between charge volume stream (ZU) and exhaust volume stream (AB), to carry out the heat recovery system (10) that heat transmission connects charge volume stream (ZU) and exhaust volume stream (AB), this heat recovery system comprises the heat exchanger of an accumulation of heat or heat exchanger or a storage substance heat exchanger or heat pipe of a UTILIZATION OF VESIDUAL HEAT IN, with have a heat pump (3), described heat pump (3) is attached to heat recovery system (10) and flows (ZU) and/or exhaust volume stream (AB) coupling connection by heat exchanger and charge volume for energy being transported to charge volume stream (ZU) or exhaust volume stream (AB), perhaps described heat pump (3) need not to be additional to heat recovery system (10) by heat exchanger and charge volume stream (ZU) and/or exhaust volume stream (AB) coupling connection, it is characterized in that, one first storage circulation (9), it is arranged between the 3rd heat exchanger (1) after the additional heat recovery system (10) that is connected in the charge volume stream (ZU) of heat pump (3) and, and wherein said heat delivery can adjusting in the first storage circulation (9).
9. device as claimed in claim 8, it is characterized in that, one be arranged in the exhaust volume stream (AB) and with first heat exchanger (2) of heat pump (3) coupling connection, by the first storage circulation (9) of one second heat exchanger (4) with heat pump (3) coupling connection, first accumulator (9.1) that is coupled into the first storage circulation (9), be arranged on charge volume stream (ZU) the inside and first and store the 3rd heat exchanger (1) of circulation (9) coupling connection, with a device (6) that is used to regulate the intake air temperature of charge volume stream (ZU), its control circulating fluid is the flow by the 3rd heat exchanger (1) and first accumulator (9.1) in the first storage circulation (9).
10. device as claimed in claim 9 is characterized in that, the structure of described first heat exchanger (2) is as the evaporimeter or the condenser of heat pump (3).
11. device as claimed in claim 9 is characterized in that, the structure of described second heat exchanger (4) is as the evaporimeter or the condenser of heat pump (3).
12. device as claimed in claim 9, it is characterized in that, the second storage circulation (12), it is by the 4th heat exchanger (13) and heat pump (3) coupling connection, second accumulator (12.1) that is coupled into second storage circulation (12) the inside and one are used to regulate the device (14) of the output of heat energy to the exhaust volume stream (AB), and it regulates the control circulating fluid passes through the 4th heat exchanger (13) and second accumulator (12.1) in second storage circulates (12) flow for the volume flow of a variation in charge volume stream (ZU) and/or exhaust volume stream (AB).
13. device as claimed in claim 12 is characterized in that evaporimeter or the condenser of the structure of the 4th heat exchanger (13) as heat pump (3).
14., it is characterized in that described heat pump (3) can switch as claim 9 or 12 described devices.
15. as claim 9 or 12 described devices, it is characterized in that carrying out the adiabatic device that cools off before the condenser that is used to make exhaust volume stream (AB) enter heat pump (3), be used for improving the energy value under charge volume stream (ZU) refrigeration situation.
16. as claim 9 or 12 described devices, it is characterized in that one is used to make the charge volume of discharging from the 3rd heat exchanger (1) to flow the device that (ZU) heats again, is used for by the heat energy that is transported to the heat pump (3) on the 5th heat exchanger (7) that is arranged on charge volume stream (ZU) charge volume stream (ZU) being carried out humidity regulation.
17. as claim 9 or 12 described devices, it is characterized in that a device that is used for additional heating, one of them additional firing equipment is coupled into the first storage circulation (9) by one the 6th heat exchanger (16).
18. device as claimed in claim 17 is characterized in that using an additional firing equipment of device conduct according to the fuel value technical operation.
19. install as claimed in claim 8 or 9, it is characterized in that making a plurality of air inlets and exhaust equipment (17,18) to be aggregated into a unique energy-recuperation system, wherein only be provided with a heat pump (3) and have only a storage circulation (19) with accumulator (19.1).
20. device as claimed in claim 19, it is characterized in that making a plurality of air inlets and exhaust equipment (17,18) to be aggregated into a unique energy-recuperation system, wherein only be provided with a heat pump (3), it circulate with two or more storages (19,20) be connected and have an accumulator (19.1 or 20.1) therein and be used for buffering heating or refrigeration.
21. as claim 19 or 20 described devices, it is characterized in that, one or more distribution station or distributors that have nothing to do with heat pump (3) are set, be used for heat energy is transported to storage circulation (19) or accumulator (19.1) or storage circulation (19) and accumulator (19.1), perhaps be transported to storage circulation (20) or accumulator (20.1) or storage circulation (20) and accumulator (20.1).
22., it is characterized in that the condenser/evaporator of an outside is attached to heat pump (3) as claim 8 or 12 described devices.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10306474 | 2003-02-14 | ||
| DE10306474.5 | 2003-02-14 | ||
| DE10306546.6 | 2003-02-16 | ||
| DE10323287.7 | 2003-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1771413A CN1771413A (en) | 2006-05-10 |
| CN100449218C true CN100449218C (en) | 2009-01-07 |
Family
ID=36751941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800097105A Expired - Fee Related CN100449218C (en) | 2003-02-14 | 2004-02-12 | Method and device for recovering energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100449218C (en) |
| UA (1) | UA89943C2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2044492B1 (en) * | 2006-06-23 | 2012-12-12 | Saudi Arabian Oil Company | System, method, and program product for optimizing heat transfer in energy recovery systems |
| US8116920B2 (en) * | 2009-10-08 | 2012-02-14 | Saudi Arabian Oil Company | System, method, and program product for synthesizing non-thermodynamically constrained heat exchanger networks |
| US9760099B2 (en) | 2008-06-06 | 2017-09-12 | Saudi Arabian Oil Company | Systems, program code, computer readable media for planning and retrofit of energy efficient eco-industrial parks through inter-time-inter-systems energy integration |
| US9612635B2 (en) | 2012-03-19 | 2017-04-04 | Saudi Arabian Oil Company | Systems and computer programs for simultaneous process and utility systems synthesis in partially and fully decentralized environments |
| JP5632700B2 (en) * | 2010-10-19 | 2014-11-26 | 三浦工業株式会社 | Heat recovery system |
| CN108302716B (en) * | 2018-01-11 | 2020-06-05 | 广东美的制冷设备有限公司 | Control method of air conditioner and air conditioner |
| CN109764511B (en) * | 2019-01-09 | 2021-08-24 | 重庆海尔空调器有限公司 | Control method of energy system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0676594A2 (en) * | 1994-04-08 | 1995-10-11 | Raoul Miserez | Building heating system with heat pumps |
| DE29706131U1 (en) * | 1997-04-07 | 1997-05-22 | Hoose Heinz Dieter | Heat pumps / air conditioning system with heat recovery |
| DE19827511A1 (en) * | 1997-12-11 | 1999-06-24 | Fraunhofer Ges Forschung | Ventilation and heating energy supply system, with heat accumulator |
-
2004
- 2004-02-12 CN CNB2004800097105A patent/CN100449218C/en not_active Expired - Fee Related
- 2004-02-12 UA UAA200508738A patent/UA89943C2/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0676594A2 (en) * | 1994-04-08 | 1995-10-11 | Raoul Miserez | Building heating system with heat pumps |
| DE29706131U1 (en) * | 1997-04-07 | 1997-05-22 | Hoose Heinz Dieter | Heat pumps / air conditioning system with heat recovery |
| DE19827511A1 (en) * | 1997-12-11 | 1999-06-24 | Fraunhofer Ges Forschung | Ventilation and heating energy supply system, with heat accumulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1771413A (en) | 2006-05-10 |
| UA89943C2 (en) | 2010-03-25 |
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