CN105928255B - Refrigeration, heating and hot water combined supply unit adopting air source heat pumps - Google Patents

Refrigeration, heating and hot water combined supply unit adopting air source heat pumps Download PDF

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Publication number
CN105928255B
CN105928255B CN201610418435.7A CN201610418435A CN105928255B CN 105928255 B CN105928255 B CN 105928255B CN 201610418435 A CN201610418435 A CN 201610418435A CN 105928255 B CN105928255 B CN 105928255B
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air
hot water
source heat
heat pump
operating mode
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CN201610418435.7A
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CN105928255A (en
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言树清
龚光彩
李水生
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湖南中辐空调净化设备有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat 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

The invention discloses a refrigeration, heating and hot water combined supply unit adopting air source heat pumps. The refrigeration, heating and hot water combined supply unit adopting the air source heat pumps comprises an air source heat pump condensation heat recovery unit (1) and an air source heat pump air conditioning unit (2). The air source heat pump condensation heat recovery unit (1) is provided with an air conditioning water tank (3), a hot water tank (4), the first air conditioning water pump (5) and a first electric auxiliary heater (6). The air source heat pump air conditioning unit (2) is provided with the second air conditioning water pump (8) and a second electric auxiliary heater (7). The electric power of the air source heat pump condensation heat recovery unit (1) is smaller than or equal to that of the air source heat pump air conditioning unit (2). The refrigeration, heating and hot water combined supply unit adopting the air source heat pumps has three coupling control selection modes, i.e., hot water only, hot water plus refrigeration, and hot water plus heating so that continuous supply of refrigeration, heating and hot water can be achieved; the integration installation is facilitated; operating cost is lowered; and the refrigeration, heating and hot water combined supply unit adopting the air source heat pumps meets the demands of families in the regions which are cold in winter, hot in summer and humid in transitional seasons.

Description

Air source heat pump changes in temperature heat company supplies unit

Technical field

The present invention relates to field of air conditioning, and in particular to air source heat pump changes in temperature heat company supplies unit.

Background technology

1st, the south China area winter is cold, the summer is hot, conditioning in Transition Season is moist, adds traffic noise and haze, air-conditioning, hot water, fresh air The rigid demand of dehumidifying Jun Shu families, many families adopt residential central air-, central hot water to improve quality of the life, at present It is to be difficult to integrated continuous supply to be used for the air-conditioning of family, the contradiction of hot water supply on market, or continuous supply operation Expense is too high uneconomical.

1.1 select Central air-conditioning unit but generally without water heating function, and hot-water heating system need to be configured in addition, central air-conditioning Unit belongs to low load with strong power in transition season dehumidifying, and operating cost is high, Unit Commitment is frequent, thus dehumidifying low-temperature receiver is difficult to resolve certainly; Although hot-water heating system is selected, and various, but Energy Efficiency Ratio and continuous supply capacity are also difficult satisfied, it is more difficult to realize under annual various weathers Changes in temperature thermal source is continuously supplied.

1.2 realize changes in temperature hot water tri-generation, but cooling in summer air-conditioning from air source heat pump condensing units unit When, condensing units hot water is sufficient, hot water demand's amount but seldom, conditioning in Transition Season necessarily low load with strong power, operating cost is high, unit Frequently, heat load of heating system in winter demand is big for start and stop, but hot water demand's amount is also big, and air-conditioner host can not be attended to anything else, and adopt " hot water is preferential ", The operation of heating gap, the changes in temperature thermal source that same difficulty is reached under annual various weathers are continuously supplied.

The advantage of 1.3 usual central air-conditioning is embodied in:In host set, end is unrestricted, fresh air dehumidifier adapter side Just, but home-use central air-conditioning operating cost that whole machine is opened to dehumidify is too high, fresh air and fresh air are not generally just accounted for Dehumidifying;Then market occurs in that various household fresh air fans:Have total heat recovery, have Exposure degree, have special disposal haze PM2.5, also have and carry new blower fan of dehumidifier etc., nonetheless, the normal mildew of textile or Jing in wardrobe, Yong Hugen Originally cannot judge that product is good and bad.

2nd, the conventional air conditioning hot in current southern area adopts compound mode.

2.1 air conditioner with air-source heat pump groups add burnt gas wall hanging furnace supply combination:

Existing market generally using air conditioner with air-source heat pump group and two sets systems of burnt gas wall hanging furnace, supply family's air-conditioning and Hot water;There is the air-conditioning effect of quick changes in temperature to allow tail end of central air conditioner, need standby operation or operation at part load, now air-conditioning Main frame " start and stop are frequent ", impact main frame life-span;Burnt gas wall hanging furnace, in addition to " hot water is preferential " provides hot water, is also radiator or floor heating Thermal source is provided;Above-mentioned dual system is configured to air-conditioning and hot water is each provided with relatively reliable guarantee, but design, the construction of two sets of systems Often fight separately, although burnt gas wall hanging furnace " hot water is preferential ", accumulation of energy not enough, will often waste many cold when just having opened hot water Water, it is also impacted with heating effect during hot water in a large number, the often two sets personnel's design and construction of two sets of systems are added, matching coordinative is not Easily, initial cost cost increases, and combustion gas and electricity consumption operating cost are high.

2.2 air conditioner with air-source heat pump groups add air friction drag alliance to combine:

Air source heat pump cold-warm water unit adds air friction drag alliance to combine more for single villa, and which is special Point is that air conditioner with air-source heat pump group is completely independent with air friction drag, and its maximum problem cooling-down air conditioner season is empty The condensation heat of main frame is adjusted to waste, evaporation cold is also drained into air by hot-water heating system in vain, runs not energy-conservation, underload or prunus mume (sieb.) sieb.et zucc. Rain conditioning in Transition Season operating cost is high, such combination, equally have impact on " high, big, on " image of household central air conditioner, central hot water Popularization because the continuous supply of changes in temperature heat needs high operating cost.

The content of the invention

The technical problem to be solved is:Design a kind of air source heat pump changes in temperature heat company and supply unit;For family Cold, warm, thermal source demand needed for air-conditioning, hot water, fresh air dehumidification:The changes in temperature for matching with operation at part load at full capacity are solved rationally Hot continuous supply problem, reduces operating cost.

The technical solution used in the present invention is:A kind of air source heat pump changes in temperature heat company supplies unit, air source heat pump changes in temperature heat Company is made up of air source heat pump condensing units unit and air conditioner with air-source heat pump group for unit;The air source heat pump condensation Heat recovery machine assembling is furnished with air conditioning water tank, boiler and the first water pump of air conditioner;There is the first electric secondary heater in air conditioning water tank;Hot water There is the second electric secondary heater in case;The air conditioner with air-source heat pump assembling is furnished with the second water pump of air conditioner;The air source heat pump The electrical power of the electrical power of condensing units unit≤air conditioner with air-source heat pump group;The air source heat pump changes in temperature heat company supplies machine Group with " independent hot water ", " hot water+refrigeration ", three kinds of " hot water+heating " coupling control selections patterns, be capable of achieving refrigeration, heating, The continuous supply of hot water.

Further, described air source heat pump changes in temperature heat company supplies unit, it is characterised in that:The air source heat pump changes in temperature Heat is even for unit by air source heat pump condensing units unit(1)With air conditioner with air-source heat pump group(2)Combine, its air Source heat pump condensing units unit(1)Run with " refrigeration " as " main operating mode ", with " heating " as " auxiliary operating mode ", and air source heat pump It is air conditioning unit(2)Then to heat " run as " main operating mode ", " refrigeration " for " auxiliary operating mode ", so coupling control makes unit interior part Working time in the year matching matched somebody with somebody, can extend the service life of whole machine.

Further, described air source heat pump changes in temperature heat even selects pattern, tool for " independent hot water " that unit has There is " hot water " operating condition, by the air source heat pump condensing units unit independent operating operating mode, its first supporting air conditioner water " hot water " operating mode onrelevant under pump and this pattern.

Further, described air source heat pump changes in temperature heat even selects pattern, tool for " hot water+refrigeration " that unit has There are " hot water ", " condensing units ", " refrigeration " three kinds of operating conditions, by air source heat pump condensing units unit as " main work Condition " is run, and its first supporting water pump of air conditioner continuously runs;Under the pattern, air conditioner with air-source heat pump group " refrigeration " is " auxiliary Operating mode " is run, the start and stop synchronous with air conditioner with air-source heat pump group " refrigeration " of its second supporting water pump of air conditioner, gap operation, gives The opening of main frame, stop reserved Timing Advance, the amount of delay of termination of pumping for opening pump.

Further, described air source heat pump changes in temperature heat even selects pattern for unit had " hot water+heating ", has Two kinds of operating conditions of " hot water ", " heating ";Wherein " hot water " operating mode is independently executed by air source heat pump condensing units unit, and Onrelevant is run with the first water pump of air conditioner;" heating " operating mode is run as " main operating mode " by air conditioner with air-source heat pump group, and which is matched somebody with somebody Second water pump of air conditioner of set continuously runs;Used as " auxiliary operating mode " operation " heating ", which matches somebody with somebody air source heat pump condensing units unit The first water pump of air conditioner start and stop synchronous with air source heat pump condensing units unit of set, gap operation, opening, stopping reserving to main frame Open Timing Advance, the amount of delay of termination of pumping of pump.

Further, the air source heat pump condensing units unit and the first supporting water pump of air conditioner, in " hot water+system It is cold " under " main operating mode " holding state of pattern, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All state termination of pumping;The air conditioner with air-source heat pump group and the second supporting water pump of air conditioner, in " hot water+heating " pattern " main operating mode " holding state under, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All State termination of pumping.

The air source heat pump changes in temperature heat of the present invention even for unit air-conditioning total load by air source heat pump recuperation of heat unit with Air conditioner with air-source heat pump component is carried on a shoulder pole, and air source heat pump recuperation of heat unit only undertakes the fraction in air-conditioning total load, for example:It is public Common area parlor air conditioner load+new wind load, other loads are undertaken by air conditioner with air-source heat pump group;General family new wind load is about 0.5, parlor air conditioner load 2.0-2.5, from 2.5-3.0 air source heat pump recuperation of heat unit, can meet public area The air conditioner load and new wind load in parlor, or meet the air conditioner load and new wind load in bedroom between 1-2, this 2.5-3.0 is empty Air supply heat pump recuperation of heat unit also meets the water heating demand of general family, and remaining most of air conditioner load is by air source heat pump Air conditioning unit automatic coupling control undertakes, it is to avoid " low load with strong power " phenomenon when long-time Smaller load runs, operating cost will Substantially reduce.

The present invention is condensed by air source heat pump for cold, warm, the thermal source demand needed for family's air-conditioning, hot water, fresh air dehumidification Recuperation of heat unit and air conditioner with air-source heat pump group composition air source heat pump changes in temperature heat even for unit and couple control;Reasonably solve The continuous supply problem of changes in temperature heat for certainly matching with operation at part load at full capacity, reduces operating cost.

Description of the drawings

Fig. 1 is air source heat pump changes in temperature heat of the present invention Figure of description even for unit.

Fig. 2 is that air source heat pump changes in temperature heat even couples control table for unit.

Reference is:1st, air source heat pump condensing units unit;2 air conditioner with air-source heat pump groups;3 air conditioning water tanks;4 Boiler;5 first water pump of air conditioner;6 first electric secondary heaters;7 second electric secondary heaters;8 second water pump of air conditioner;R1 hot water compresses Machine;R2 compressors of air conditioner;F1 the first cold-producing medium four-way valve modules;F2 second refrigerant four-way valve modules;H11 the first air source wings Piece heat exchanger;H12 the first changes in temperature water- to-water heat exchangers;H13 heat-recovery condensers;H21 the second air source finned heat exchangers;H22 second Changes in temperature water- to-water heat exchanger.

Specific embodiment

Below in conjunction with the accompanying drawings, the present invention is described in detail with specific embodiment.

Embodiment 1

A kind of air source heat pump changes in temperature heat company supplies unit, it is characterised in that:Air source heat pump changes in temperature heat is even for unit by sky Air supply heat pump condensing units unit(1)With air conditioner with air-source heat pump group(2)Composition;The air source heat pump condensing units Unit(1)It is equipped with air conditioning water tank(3), boiler(4)With the first water pump of air conditioner(5);Air conditioning water tank(3)In have first electricity it is additional Hot device(6);Boiler(4)In have the second electric secondary heater(7);The air conditioner with air-source heat pump group(2)It is equipped with second empty Water transfer pump(8);The air source heat pump condensing units unit(1)Electrical power≤air conditioner with air-source heat pump group(2)Electricity Power;The air source heat pump changes in temperature heat even has " independent hot water ", " hot water+refrigeration ", " hot water+heating " three kinds of couplings for unit Control selections pattern is closed, refrigeration, heating, the continuous supply of hot water is capable of achieving.

Refer to the attached drawing 2, controls according to the correlative coupling implemented in the table, by each row, each row information expressed respectively such as Under:

1st, content in terms of each row includes following four in table.

Signal share during 1.1 online control

Air source heat pump changes in temperature heat even selects pattern, six kind operating conditions with three kinds for unit:

There is a kind of " hot water " operating condition under " independent hot water " pattern;

There are " hot water ", " condensing units ", " refrigeration " three kinds of operating conditions under " hot water+refrigeration " pattern;

There are " hot water ", " heating " three kinds of operating conditions under " hot water+heating " pattern;

Air source heat pump condensing units unit(1):Manual operator is carried, individually can be manipulated or online joint control;Pocket source heat Pump is air conditioning unit(2)Manual operator is carried, individually can be manipulated or online joint control:Individually manipulation is by carrying air-conditioning water temperature signal output t2 Feedback air conditioner water temperature;Air conditioning water tank(3)Air-conditioning water temperature signal output t1, boiler are provided(4)The output of hot water water temperature signal is provided T, during online manipulation share t and t1, in order to avoid water temperature signal error and there is misoperation.

1.2 freeze, heat, the coupling control of the capital equipment that heats, device operation

Freeze, heat, the capital equipment that heats, device include:Hot water compressor(R1), compressor of air conditioner(R2), air-conditioning One electric secondary heater(6), the electric secondary heater of hot water second(7)First cold-producing medium four-way valve module(F1), second refrigerant four-way Valve module (F2);

Hot water compressor(R1)" hot water " operating mode preferentially start by " 1 ";" condensation heat under " hot water+refrigeration " pattern Recovery " system " hot water " is " main operating mode " with " refrigeration " operating mode, preferentially starts by " 1 ";" heating " operating mode is hot water compressor (R1)" auxiliary operating mode ", by " 2 " delayed startup;

Compressor of air conditioner(2)" hot water " operating mode operation of " independent hot water " pattern is not involved in, with " heating " as " main operating mode ", Preferentially start by " 1 ", but " refrigeration " operating mode is the machine " auxiliary operating mode ", by " 2 " delayed startup;

First electric secondary heater(6)Belong to the minimum heater element of Energy Efficiency Ratio, " heating " operation of air conditioner design temperature is interval Finally put into for " 3 ";

Second electric secondary heater(7)Belong to the minimum heater element of Energy Efficiency Ratio, " hot water " fortune under " hot water+heating " pattern Row design temperature is interval to press " 2 " delayed startup.

The coupling control of 1.3 water pump of air conditioner operation

First water pump of air conditioner(5)For hot water compressor(R1)Main chain operation equipment, so in " hot water+refrigeration " mould In formula, any three kinds of operating modes are and preferentially start by " 1 ";First water pump of air conditioner in " heating " operating mode(5)By " 2 " delayed startup, only Want hot water compressor(R1)Stop " heating " operating mode, the first water pump of air conditioner(5)Will be out of service;

Second water pump of air conditioner(8)For compressor of air conditioner(R2)Main chain operation equipment, so in " hot water+heating " mould Preferentially start by " 1 " in formula, even if compressor of air conditioner(R2)Also pump is opened in " hot water " operating mode;Second water pump of air conditioner(8)" system It is cold " " 2 " delayed startup is pressed in operating mode, as long as compressor of air conditioner(R2)Stop " refrigeration " operating mode, the second water pump of air conditioner(8)To stop Operation.

1.4 4 kinds of refrigerant cycle controls

First cold-producing medium four-way valve module(F1)With the first air source finned heat exchanger(H11), the first changes in temperature water- to-water heat exchanger (H12), heat-recovery condenser(H13)Composition and hot water compressor(R1)Set of refrigerant heat exchanger system, and compress with hot water Machine(R1)Synchronous operation following four refrigerant cycle:I-kind of refrigeration cycle, II-heating circulation, III-heat water circulation, IV-condensation Heat recovery cycle;

Second refrigerant four-way valve module(F2)With the second air source finned heat exchanger(H21), the second changes in temperature water- to-water heat exchanger (H22), composition and compressor of air conditioner(R2)Set of refrigerant heat exchanger system, and and compressor of air conditioner(R2)Synchronous operation is following Two kinds of refrigerant cycle:I-kind of refrigeration cycle, II-heating circulation.

2nd, in table, each row include content in terms of following four.

2.1 same " hot water " operating modes, it is each has something to recommend him to control

Air source heat pump changes in temperature heat is even for unit " independent hot water ", three kinds of operation moulds of " hot water+refrigeration ", " hot water+heating " There is " hot water " operating mode in formula, and all by same air source heat pump condensing units unit(1)Operation, but each operating mode control System is different, has difference including controls such as water pump of air conditioner, electric secondary heaters, and winter " hot water " operating mode also has " defrost " Or the technology such as " anti-defrosting " crosses, in this programme, it will not go into details.

2.2 is equally cooling-down air conditioner, and " condensing units " are different with " refrigeration " operating conditions;

Equally it is cooling-down air conditioner, same air source heat pump condensing units unit(1)" condensing units " with " system It is cold " difference of operating mode is that refrigerant cycle is different, Energy Efficiency Ratio is also different, and generally " condensing units " operating mode ratio " freezes " work Condition is high, has reclaimed substantially free " hot water ";Air conditioner with air-source heat pump group(2)Opportunity of input auxiliary cooling and second empty Water transfer pump(8)The chain opportunity put into operation it is also different.

2.3 is equally heating air-conditioner, and " heating " operating conditions are different;

Air source heat pump condensing units unit(1)" heating " is " auxiliary operating mode ";And air conditioner with air-source heat pump group (2)" heating " is " main operating mode ", so the division of labor coupling control of two units is different, including the chain of supporting water pump of air conditioner Control is also different with " main operating mode ", " auxiliary operating mode " difference of main frame;The refrigerant cycle of " heating " is identical.

2.4 air source heat pump changes in temperature heat is even for unit by air source heat pump condensing units unit(1)And air source heat pump It is air conditioning unit(2)Combine, its air source heat pump condensing units unit(1)With " refrigeration " as " main operating mode ", with " heating " Run for " auxiliary operating mode ", and air conditioner with air-source heat pump group(2)Then to heat " transport as " main operating mode ", " refrigeration " for " auxiliary operating mode " OK, so coupling control, matches the working time in year of unit internal distribution, can extend the service life of whole machine.

3rd, air source heat pump changes in temperature heat of the present invention is even routinely matched somebody with somebody for the air-conditioner water system and sanitary hot water system of unit It is equipped with confession, backwater interface, including boiler(4)On be furnished with hot water water supply(Rg)Interface, hot water backwater(Rh)Interface, tap water are mended Water(Js)Interface;It is furnished with air-conditioning water supply on air conditioning water tank(Kg)Interface, air-conditioning backwater(Kh)Interface, tap water moisturizing(Js)Connect Mouthful;It is above-mentioned to be configured in air source heat pump changes in temperature heat of the present invention even for essential in units.

In sum, according to the technical solution used in the present invention, air source heat pump changes in temperature heat is even for unit coupling control tool Body is implemented, the operation of most energy-conservation can be preferentially distributed in the big Smaller load of changes in temperature heat, it is to avoid low load with strong power phenomenon, operation section Energy.

Embodiment 2

Air source heat pump changes in temperature heat type selecting even for unit.

1.1 carry calculation

Air source heat pump changes in temperature heat even supplies the air-conditioning total load of unit by air source heat pump recuperation of heat unit(1)With air source Heat pump air conditioner unit(2)Share, air source heat pump recuperation of heat unit(1)Fraction in air-conditioning total load is undertaken only, for example:It is public Common area parlor air conditioner load+new wind load, other loads are by air conditioner with air-source heat pump group(2)Undertake;General family fresh air is born Lotus about 0.5, parlor air conditioner load 2.0-2.5, from 2.5-3.0 air source heat pump recuperation of heat unit(1), can meet The air conditioner load and new wind load in public area parlor, or meet the air conditioner load and new wind load in bedroom between 1-2, the 2.5- 3.0 air source heat pump recuperation of heat units(1)Also meet the water heating demand of general family, remaining most of air conditioner load by Air conditioner with air-source heat pump group(2)Automatic coupling control undertakes, it is to avoid " low load with strong power " when long-time Smaller load runs is existing As operating cost will be substantially reduced.

In sum, air source heat pump condensing units Unit Selection principle is

Air source heat pump changes in temperature heat air-conditioning total load=air conditioner load+fresh air dehumidification load even for unit;

Air source heat pump condensing units unit(1)Electrical power≤air conditioner with air-source heat pump group(2)Electrical power.

1.2 boiler(4)Type selecting

Condensing units scheme presses boiler(4)Built-in coil pipe directly-heated mode, boiler(4)Also available buffer hot water makes simultaneously With the demand on peak, accumulation of energy effect is got;2.5-3.0 air source heat pump recuperation of heat unit of general family(1)Apolegamy boiler Volume≤300 liter;The water tank of the bigger volume of more than 3.0 unit optimum selections, or water tank capacity it is constant, heat is produced using indirect heat exchange Water;Boiler(4)The electric secondary heater of the second of upper configuration(7)As winter hot water emergency measure, for " thermal protection ", its type selecting is pressed Air source heat pump recuperation of heat unit(1)Power, every power configuration 0.75-1.0kw electricity secondary heater.

1.3 air conditioning water tank(3)Type selecting

Household central air conditioner water system capacity is little, in order to prevent air source heat pump condensing units unit(1)In Smaller load Start and stop during operation frequently, need to increase air-conditioner water system capacity;This programme press 5 DEG C of differential thermal calculation air-conditioning discharges of air-conditioning confession/backwater, At least run more than 3 minutes non-stop-machine principles and select air conditioning water tank(3), 2.5-3.0 air source heat pump heat time of usual family Receive unit(1)3 volume of air conditioning water tank by≤100 liters configure;More than 3.0 by air conditioner water flow rate calculation, suitably increase air-conditioning Water tank capacity;Heat supply in winter coupling control operation is with air conditioner with air-source heat pump group(2)It is preferential to heat, its heating power compared with Greatly, air conditioning water tank is selected by above-mentioned type selecting(3)Possible inadequate more than 3 minutes heating discharge, generally plus pipe-line system then Substantially requirement can also be met;Air conditioning water tank(3)On the first electric secondary heater for also configuring that(6)Arrange as heat supply in winter water is emergent Apply, for air conditioning water tank(3)" warming ", its type selecting press air source heat pump recuperation of heat unit(1)Power, every power configuration 0.75-1.0kw electricity secondary heaters.

2. air source heat pump changes in temperature heat is even for unit coupling control

Air source heat pump changes in temperature heat even has " independent hot water ", " hot water+refrigeration ", " hot water+heating " three kinds of couplings for unit Close operational mode.

2.1 " independent hot water " mode continuous supply hot water

The comfortable conditioning in Transition Season of the suitable epidemic disaster of " independent hot water " pattern, such as major part in south China area autumn Period and the partial period in spring, without cold, warm load and except humidity load;By air source heat pump condensing units unit(1)Individually Operation " hot water " operating mode water heating on duty;Although this programme is in boiler(4)Bottom design have the second electric secondary heater(7), But do not run under " independent hot water " pattern;Only in air source heat pump condensing units unit under the pattern(1)After being out of order, unlocking Can be by the second electric secondary heater(7)Emergency operating system " hot water ".During operation " independent hot water " pattern, other of air-conditioner water system set It is standby to be not involved in operation, operational energy efficiency than it is high, compared with energy-conservation.

2.2 " hot water+refrigeration " mode continuous supply hot water and chilled water

" hot water+refrigeration " pattern suitable summer and plum rains conditioning in Transition Season, belong to high temperature, high humidity weather, air source heat pump condensation Recuperation of heat unit(1)Run by " main operating mode ", following three kinds of operating modes can be run:

Operation " condensing units " operating mode, " refrigeration " " condensing units " hot water;

Isolated operation " hot water " operating mode;

Isolated operation " is freezed " operating mode;

When refrigeration duty increases, air conditioner with air-source heat pump group(2)By " auxiliary operating mode " coupling control, operation " refrigeration " operating mode, Supply cold, its " auxiliary operating mode " refrigeration is using delayed unlatching, preferential shutdown control;This programme is in boiler(4)Bottom design There is the second electric secondary heater(7), but do not run under " hot water+refrigeration " pattern;Only return in air source heat pump condensation heat under the pattern Receive unit(1)By the second electric secondary heater after report failure, unblock(7)Emergency operating system " hot water ";Summer air source heat pump heat is returned Receive unit(1)Preferential operation " hot water ", " refrigeration ", " condensing units ", the most of the time that can meet season family are continuous The demand of supply hot water and chilled water, obtains higher Energy Efficiency Ratio, more energy efficient.

2.3 " hot water+heating " mode continuous supply hot water and heating water

" hot water+heating " pattern is suitable for winter low temperature season, due to winter air source heat pump heat recovery machine group(1)Not yet When having cooling in summer, the advantage of condensing units, " hot water " need special plane to supply, and " heating " is also required for special plane supply, this The coupling control of bright " air source heat pump changes in temperature heat company supplies unit " is exactly provided with the art attended to anything else:Wherein air source heat pump condensation heat Reclaim unit(1)By " hot water " operating mode is preferential, " heating " operating mode be only " auxiliary operating mode ", delayed unlatching and preferential shut down operation;It is empty Air supply heat pump is air conditioning unit(2)Then preferentially run by " heating " conduct " main operating mode ".

2.3.1 continuous " hot water " operating mode of " hot water+heating " pattern

Air source heat pump recuperation of heat unit(1)Winter to run based on " hot water " operating mode, if being currently running " heating " operating mode Process, meet operation " hot water " operating mode instruction, need " time-delay conversion ", ensure " heating " run time more than 3 minutes, it is to avoid Main frame is frequently opened, constantly running;This programme is in boiler(4)Bottom design have the second electric secondary heater(7), can be in operation The time delay process of " heating " puts into operation boiler(4)" thermal protection " operating mode;But air source heat pump recuperation of heat unit(1)It is converted into After operation " hot water " operating mode, the second electric secondary heater(7)It is out of service;Due to air conditioner with air-source heat pump group(2)" heating " is excellent First operation, and delayed shutdown, so coupling control, can allow air source heat pump condensing units unit(1)There are more chances special Operation " hot water " operating mode, reduces by the second electric secondary heater(7)Making time, improve winter operation " hot water " operating mode efficiency Than.

2.3.2 continuous " heating " operating mode of " hot water+heating " pattern

South China area heat supply in winter air conditioner load is typically smaller than the cooling-down air conditioner load of summer, according to air source heat pump Condensing units unit(1)Electrical power≤air conditioner with air-source heat pump group(2)Electrical power principle type selecting, general air source heat pump are empty Adjust unit(2)The heating demands of most of the time in winter can be met;This programme is in air conditioning water tank(3)Bottom design have first Electric secondary heater(6), for air conditioning water tank(3)Operation " warming " operating mode, when running into severe winter weather, one side air source heat pump is cold Solidifying recuperation of heat unit(1)" can heat " operating mode by " auxiliary operating mode " operation, if air-conditioning water temperature reached setting minimum temperature, Air source heat pump condensing units unit(1)Yet in operation " hot water " operating mode, now the first electric secondary heater(6)By input fortune Row is " warming " to be run, avoids heating water without interruption;As long as air source heat pump condensing units unit under the pattern(1)Throw Enter auxiliary " heating " operating mode, the second electric secondary heater(7)Will be out of service, improve winter operation and " heat " Energy Efficiency Ratio of operating mode; Winter " hot water+heating " operation electric load is relatively large, and above-mentioned coupling control can meet the continuous supply need of hot water and heating Ask, while it also avoid the first electric secondary heater(6)With the second electric secondary heater(7)Open simultaneously, winter electricity consumption can be avoided high Peak ammeter " trips ".

The coupling control of 2.4 water pump of air conditioner energy saving in running

The operating cost of water pump of air conditioner in air-conditioning is entreated to generally reach the 10-15% of whole machine in the family, and domestic air conditioning main frame As long as often start, water pump just do not stop for design, cause the standby water pump power consumption of main frame constantly, operating cost wastes many;We Case does Energy Saving Control to water pump of air conditioner:

Run under " hot water+refrigeration " pattern of selection, air conditioner with air-source heat pump group(2)Run by " auxiliary operating mode ", which is supporting The second water pump of air conditioner(8)With air conditioner with air-source heat pump group(2)Synchronous gap operation, opening, stopping reserving and open pump to main frame Timing Advance, the amount of delay of termination of pumping.

Run under " hot water+heating " pattern of selection, its operating mode that " heats " is by air source heat pump condensing units unit(1)Make " auxiliary operating mode " for " heating " operating mode is run, its first supporting water pump of air conditioner(5)With air source heat pump condensing units unit (1)Synchronous gap operation, to the amount of delay for opening, stopping the reserved Timing Advance for opening pump, termination of pumping of main frame.

Air source heat pump condensing units unit(1)And the first supporting water pump of air conditioner(5), in " hot water+refrigeration " pattern Holding state under, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All state is stopped Pump.

Air conditioner with air-source heat pump group(2)And the second supporting water pump of air conditioner(8), in the standby of " hot water+heating " pattern Under state, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All state termination of pumping.

The air source heat pump condensing units unit(1)And the first supporting water pump of air conditioner(5), at " hot water+refrigeration " Under the holding state of pattern, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All state Termination of pumping;The air conditioner with air-source heat pump group(2)And the second supporting water pump of air conditioner(8), in the standby of " hot water+heating " pattern Under state, can be opened by air conditioning terminal electrodynamic valve, stop signal control, air conditioning terminal electrodynamic valve Close All state termination of pumping.

Claims (1)

1. a kind of air source heat pump changes in temperature heat company supplies unit, it is characterised in that:Air source heat pump changes in temperature heat is even for unit by air Source heat pump condensing units unit(1)With air conditioner with air-source heat pump group(2)Composition;The air source heat pump condensing units machine Group(1)It is equipped with air conditioning water tank(3), boiler(4)With the first water pump of air conditioner(5);Air conditioning water tank(3)In have the first electric additional heat Device(6);Boiler(4)In have the second electric secondary heater(7);The air conditioner with air-source heat pump group(2)It is equipped with the second air-conditioning Water pump(8);The air source heat pump condensing units unit(1)Electrical power≤air conditioner with air-source heat pump group(2)Electric work Rate;The air source heat pump changes in temperature heat even has " independent hot water ", " hot water+refrigeration ", " hot water+heating " three kinds of couplings for unit Control selections pattern, is capable of achieving refrigeration, heating, the continuous supply of hot water;
Described " independent hot water " coupling control selections pattern only has a kind of " hot water " operating condition, by air source heat pump condensation heat Reclaim unit(1)Independent operation " hot water " operating mode water heating on duty;Hot water compressor(R1)" hot water " operating mode by preferential startup, It is delayed to shut down operation;Compressor of air conditioner(R2)" hot water " operating mode operation of " independent hot water " pattern is not involved in, air-conditioner water system Other equipment is included in boiler(4)Bottom design the second electric secondary heater(7)It is not involved in operation;Unless in air source heat Pump condensing units unit(1)After being out of order, unlocking, can be by the second electric secondary heater(7)Emergency operating system " hot water ";
There are " hot water ", " condensing units ", " refrigeration " three kinds of operation works under described " hot water+refrigeration " coupling control selections pattern Condition;Air source heat pump condensing units unit(1)Run by main operating mode, summer priority operation " hot water ", " refrigeration ", " cold Solidifying recuperation of heat ";First water pump of air conditioner(5)For hot water compressor(R1)Main chain operation equipment;In above-mentioned any three kinds of works In condition operation, the first water pump of air conditioner(5)It is by preferential startup, it is delayed to shut down operation;When refrigeration duty increases, air source heat pump It is air conditioning unit(2)By auxiliary operating mode coupling control operation " refrigeration " operating mode, cold is fed;Second water pump of air conditioner(8)For air conditioner compressed Machine(R2)Main chain operation equipment, by auxiliary operating mode coupling control operation " refrigeration " operating mode when, the second water pump of air conditioner(8)Press Delayed startup, it is preferential to shut down operation, i.e.,:As long as compressor of air conditioner(R2)Stop " refrigeration " operating mode, the second water pump of air conditioner(8)Will be excellent It is first out of service;Second water pump of air conditioner(8)With chain air conditioner with air-source heat pump group(2)Be synchronous start and stop, gap operation, with Give air source heat pump condensing units unit(1)Run that main operating mode is reserved to open pump pre-set time or reserved termination of pumping delay time i.e. Can;Second electric secondary heater under described " hot water+refrigeration " pattern(7)Do not run, but in air source heat pump condensing units machine Group(1)After report failure, unblock, can emergency operating system " hot water ";The first described water pump of air conditioner(5), in " hot water+refrigeration " pattern Main operating mode holding state under, can be opened by air conditioning terminal electrodynamic valve, stop signal control, i.e.,:Air conditioning terminal electrodynamic valve is in complete Portion's closed mode, the first water pump of air conditioner(5)Termination of pumping;
There are " hot water ", " heating " two kinds of operating conditions under described " hot water+heating " coupling control selections pattern;Air source heat pump Condensing units unit(1)Winter low temperature season by " hot water " operating mode is preferential, " heating " operating mode only supplemented by operating mode, and delayed open Open, and preferential shut down operation;Wherein " hot water " operating mode is by air source heat pump condensing units unit(1)Independently execute, and with One water pump of air conditioner(5)Operation onrelevant;Second electric secondary heater(7)It is under " hot water " operating mode, interval by delayed with design temperature Start, it is preferential to shut down operation;Air conditioner with air-source heat pump group(2)Preferentially run as main operating mode by " heating " operating mode;If Operation " heating " operating mode meet operation " hot water " operating mode instruction, need " time-delay conversion ", it is ensured that " heating " run time 3 minutes with On, it is to avoid main frame is frequently opened, constantly running;First electric secondary heater(6)It is under " heating " operating mode, interval by last with design temperature Input, shuts down operation at first;The second described water pump of air conditioner(8)By preferential startup in " hot water ", " heating " two kinds of operating modes, Delayed shutdown, even if compressor of air conditioner(R2)The second water pump of air conditioner under " hot water " operating mode(8)Also open pump;Described air source Heat pump condensing units unit(1)When running " heating " operating mode as auxiliary operating mode, the first water pump of air conditioner(5)With chain air source Heat pump condensing units unit(1)It is synchronous start and stop, gap operation, with to air source heat pump condensing units unit(1)Operation Auxiliary operating mode is reserved to open pump pre-set time or reserved termination of pumping delay time;The first described water pump of air conditioner(5), " hot water+ Under the holding state of heating " pattern, can be opened by air conditioning terminal electrodynamic valve, stop signal control, i.e.,:Air conditioning terminal electrodynamic valve is in Close All state, the first water pump of air conditioner(5)Termination of pumping.
CN201610418435.7A 2016-06-15 2016-06-15 Refrigeration, heating and hot water combined supply unit adopting air source heat pumps CN105928255B (en)

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CN101858627B (en) * 2010-07-15 2012-06-27 刘秋克 Solar energy secondary heat-source tower heat pump integrated device
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