CN110220237A - Net for air-source heat pump units and heat accumulating type electric heater unit combining heating system and method - Google Patents
Net for air-source heat pump units and heat accumulating type electric heater unit combining heating system and method Download PDFInfo
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- CN110220237A CN110220237A CN201910544835.6A CN201910544835A CN110220237A CN 110220237 A CN110220237 A CN 110220237A CN 201910544835 A CN201910544835 A CN 201910544835A CN 110220237 A CN110220237 A CN 110220237A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
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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]
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention belongs to field of energy-saving technology, disclose net for air-source heat pump units and heat accumulating type electric heater unit combining heating system and method, including net for air-source heat pump units (1), heat accumulating type electric heater unit (2) and flow self-seeker (3), flow self-seeker (3) top is provided with conveying heat accumulating type electric heater unit water outlet (34) and receives heat pump unit water return outlet (33), flow self-seeker (3) lower part, which is provided with, receives user's water return outlet (31) and conveying heat pump unit water outlet (32), conveying heat pump unit water outlet (32) is connected to by first pipe with the water inlet of net for air-source heat pump units (1), the water outlet of net for air-source heat pump units (2) is connected to by second pipe with heat pump unit water return outlet (33) are received, it conveys heat accumulating type electric heater unit water outlet (34) It is connected to by third pipeline with the water inlet of heat accumulating type electric heater unit (2).Present invention saves the energy, reduce production heat cost.
Description
Technical field
The invention belongs to field of energy-saving technology, and in particular to net for air-source heat pump units and heat accumulating type electric heater unit joint supply
Hot systems and method.
Background technique
In recent years, due to the sustainable development of China's power industry, great changes, and people's lives are had occurred in the industrial structure
Quality is continuously improved, especially some key cities ground more sufficient to the particular/special requirement of environmental protection and certain power supplies
Side, regenerative apparatus are widely used.Different heat sources has the corresponding scope of application.For example air source heat pump has energy conservation
Outstanding advantages, but when low ambient temperature and high ambient humidity, work is limited cannot even to work.With leaving water temperature
Raising, heat pump Energy Efficiency Ratio declines to a great extent, and energy-saving effect is unobvious, and it is low go out water temperature be not able to satisfy wanting for many heat supply ends
It asks；Electric heat storage equipment the operation is stable, leaving water temperature are high, and heating effect is good, but usually electric power will substantially increase-volume, cause investment big.
In existing combining heating system, such as the patent No.: CN201721478083, title: air source heat pump and hot stored electric
The Chinese patent of unified boiler central heating system, wherein including air source heat pump and thermal storage electric boiler, but only according to one
Fixed environment temperature switching cooperates, the heat pump and thermal storage electric boiler specifications and models multiplicity of practical different brands, characteristic
Different, real work operating condition is also ever-changing, and it is maximum to be simply only difficult performance system according to a fixed outer temperature
Performance.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of net for air-source heat pump units and
Heat accumulating type electric heater unit combining heating system and method.
The technical scheme adopted by the invention is as follows: net for air-source heat pump units and heat accumulating type electric heater unit combined heat system
System, including net for air-source heat pump units, heat accumulating type electric heater unit and flow self-seeker, flow self-seeker include holding
Device is provided with upper sieve plate and lower sieve plate in container, and upper sieve plate and lower sieve plate are provided with sieve pore, and upper vessel portion is provided with conveying and stores
Heat type electric heater unit water outlet and reception heat pump unit water return outlet, lower vessel portion, which is provided with, receives user's water return outlet and conveying heat
Pump assembly water outlet, conveying heat pump unit water outlet are connected to by first pipe with the water inlet of net for air-source heat pump units, air
The water outlet of source heat pump unit is connected to by second pipe with heat pump unit water return outlet is received, and conveying heat accumulating type electric heater unit goes out
The mouth of a river is connected to by third pipeline with the water inlet of heat accumulating type electric heater unit.
Further, the reception user water return outlet is connected to by total return pipe with heat supply network management, is set on total return pipe
It is equipped with total return water temperature sensor.
Further, the water outlet of the heat accumulating type electric heater unit is connected to by total water supplying pipe with heat supply network management, always
Total supply water temperature sensor is provided on water supplying pipe.
Further, heat pump unit circulating pump and the total return water temperature sensing of heat pump unit are provided in the first pipe
Device is provided with the total leaving water temperature sensors of heat pump unit on the second pipe.
Further, it is provided with global cycle pump on the third pipeline and the total return water temperature of heat accumulating type electric heater unit passes
Sensor.
The heat supply method of above-mentioned net for air-source heat pump units and heat accumulating type electric heater unit combining heating system, passes through control
System controls net for air-source heat pump units respectively and heat accumulating type electric heater unit carries out heat supply, including following heat supply mode: economic mould
Formula, energy-saving mode, heat-flash mode, single accumulation of heat mode, single heat pump mode, manual mode.
Further, economic model: providing identical heat, carries out heat supply using the least mode of expense, including with
Lower situation:
When paddy electricity: when practical outdoor temperature is greater than heat pump limit starting temperature, net for air-source heat pump units carries out heat supply, no
Then, only heat accumulating type electric heater unit carries out heat supply；
When ordinary telegram: when practical outdoor temperature is less than heat pump limit starting temperature, heat accumulating type electric heater unit carries out heat supply；
When practical outdoor temperature is greater than heat pump limit starting temperature, then with ordinary telegram electricity price/paddy electricity electricity price * coefficient A value
For Energy Efficiency Ratio, the outdoor temperature T when operation of this Energy Efficiency Ratio of net for air-source heat pump units is determinedIt is flat, when practical outdoor temperature is greater than TIt is flatWhen,
Net for air-source heat pump units participates in heat supply, conversely, only heat accumulating type electric heater unit carries out heat supply；
When peak electricity: when practical outdoor temperature is less than heat pump limit starting temperature, heat accumulating type electric heater unit carries out heat supply；
When practical outdoor temperature is greater than heat pump limit starting temperature, then with peak electricity electricity price/paddy electricity electricity price * coefficient A value
For Energy Efficiency Ratio, the outdoor temperature T when operation of this Energy Efficiency Ratio of net for air-source heat pump units is determinedPeak, when practical outdoor temperature is greater than TPeakWhen,
Net for air-source heat pump units participates in heat supply, conversely, only heat accumulating type electric heater unit carries out heat supply；
The maximum effectively thermal discharge/total power consumption of coefficient A=heat accumulating type electric heater unit.
Further, the economic model adjusts heat supply side by the actual Energy Efficiency Ratio of detection net for air-source heat pump units
Formula, specific as follows:
When paddy electricity: when practical outdoor temperature is greater than heat pump limit starting temperature, net for air-source heat pump units carries out heat supply, no
Then, only heat accumulating type electric heater unit carries out heat supply；
When ordinary telegram: the actual Energy Efficiency Ratio of net for air-source heat pump units is greater than ordinary telegram electricity price/paddy electricity electricity price * coefficient A value
When, reduce the outdoor temperature T for judging heat-supplying modeIt is flatValue, conversely, then increasing outdoor temperature TIt is flatValue；When next heat supply,
It will be with the outdoor temperature T after reducing or increasingIt is flatFor judgment criteria, determine whether net for air-source heat pump units participates in heat supply；
When peak electricity: the actual Energy Efficiency Ratio of net for air-source heat pump units is greater than peak electricity electricity price/paddy electricity electricity price * coefficient A value
When, reduce the outdoor temperature T for judging heat-supplying modePeakValue, conversely, then increasing outdoor temperature TPeakValue；When next heat supply,
It will be with the outdoor temperature T after reducing or increasingPeakFor judgment criteria, determine whether net for air-source heat pump units participates in heat supply.
Further, energy-saving mode: the Energy Efficiency Ratio of net for air-source heat pump units real-time monitoring is being greater than net for air-source heat pump units just
When the minimum Energy Efficiency Ratio often to work, the water outlet temperature setting of net for air-source heat pump units and heat accumulating type electric heater unit is needed for user
The temperature and automatic running asked；
Heat-flash mode: being user demand by the water outlet temperature setting of net for air-source heat pump units and heat accumulating type electric heater unit
Temperature and automatic running.
Further, single accumulation of heat mode: net for air-source heat pump units stops working, and sets heat accumulating type electricity by control system and adds
The leaving water temperature of thermal, heat accumulating type electric heater unit press leaving water temperature automatic running；
Single heat pump mode: heat accumulating type electric heater unit stops working, and passes through control system setting air source heat pump unit
Leaving water temperature, net for air-source heat pump units press leaving water temperature automatic running；
Manual mode: user voluntarily manages the operation of net for air-source heat pump units and heat accumulating type electric heater unit.
The invention has the benefit that (1) net for air-source heat pump units can not be supplied normally in certain extremely cold periods of heating season
Heat can only be abandoned using the present invention uses regenerative apparatus concurrent heating, expands air source heat pump application range.
(2) air source heat pump leaving water temperature is lower, and the temperature difference is small.Certain heat supply ends such as cooling fin requires temperature high, the temperature difference
Greatly, heat pump cannot be met the requirements.The present invention uses the temperature raising of heat accumulating type electric heater unit, keeps the scope of application wider.
(3) regenerative apparatus output medium multiplicity, for thermostabilization, is able to satisfy the requirement of nearly all heat supply end, but deposits
In the big defect of electric power increase-volume.Accumulation of heat is combined heat pump united heat supply by the present invention, is played the energy-efficient feature of heat pump, is substantially dropped
The requirement of low electric power increase-volume, has the excellent characteristic of storage heating concurrently.
(4) heat supply does not have redundancy, encounters equipment fault, inevitably influences user's heating.The present invention combines two kinds of heat sources,
System reliability greatly increases, and in equipment component failure, can ensure basic heating, races against time for debugging.
(5) general central heating requires the small big temperature difference of flow, and heat accumulating type electric heater unit exports hot multiplicity, can satisfy
It is required that but air source heat pump water outlet is the small temperature difference of big flow, characteristic mismatches, and the present invention is using the solution of flow self-seeker
This problem.
(6) heat pump model producer is numerous, and indicatrix is multifarious, needs good with regenerative apparatus combined operating
Match, is difficult to meet various combinations using single operation reserve or method.The present invention adaptively approaches plan using intelligence
Slightly, actual operating status can be adapted to quickly, reach the operational effect required closest to user.
(7) present invention is directed to the different demands of user, is provided with plurality of operating modes, there is economic model, energy-saving mode, strong
Heat pattern, single accumulation of heat mode, single heat pump mode, manual mode.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of flow self-seeker；
Fig. 3 is the control system block diagram in the present invention；
In figure: 1- net for air-source heat pump units, 2- heat accumulating type electric heater unit, 3- flow self-seeker, 4- heat supply user,
31- receives user's water return outlet, 32- conveying heat pump unit water outlet, 33- and receives heat pump unit water return outlet, 34- conveying heat accumulating type electricity
Sieve plate, 36- upper sieve plate, 37- sieve pore, 5- global cycle pump, 6- heat pump unit circulating pump, 7- are always returned under heating device water outlet, 35-
The total supply water temperature sensor of water temperature sensor, 8-, the total return water temperature sensor of 9- heat accumulating type electric heater unit, 10- heat pump machine
The total return water temperature sensor of group, the total leaving water temperature sensors of 11- heat pump unit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it is to be understood that term " on ", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "bottom", " side " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as the limitation to the present embodiment.
In the description of the embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.For the ordinary skill in the art, specific feelings can be regarded
Condition understands the concrete meaning of above-mentioned term in the present invention.
With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.
As shown in Figure 1, 2, net for air-source heat pump units and heat accumulating type electric heater unit combining heating system, including air-source heat
Pump assembly 1, heat accumulating type electric heater unit 2 and flow self-seeker 3, flow self-seeker 3 include container, setting in container
There are upper sieve plate 36 and lower sieve plate 35, makes container that there is upper cavity, central cavity and lower cavity, upper sieve plate 36 and lower sieve plate 35
It is provided with equally distributed sieve pore 37, upper vessel portion is provided with the conveying heat accumulating type electricity being connected to respectively with upper vessel portion cavity and adds
Thermal water outlet 34 and reception heat pump unit water return outlet 33, lower vessel portion is provided with to be connect with what lower vessel portion cavity was connected to respectively
Receive user's water return outlet 31 and conveying heat pump unit water outlet 32.
Conveying heat pump unit water outlet 32 is connected to by first pipe with the water inlet of net for air-source heat pump units 1, air-source
The water outlet of heat pump unit 2 is connected to by second pipe with heat pump unit water return outlet 33 is received, and heat accumulating type electric heater unit is conveyed
Water outlet 34 is connected to by third pipeline with the water inlet of heat accumulating type electric heater unit 2.
Heat pump unit circulating pump 6 and the total return water temperature sensor 10 of heat pump unit are provided in the first pipe.Institute
The total leaving water temperature sensors 11 of heat pump unit are provided on the second pipe stated.Global cycle pump is provided on the third pipeline
5 and the total return water temperature sensor 9 of heat accumulating type electric heater unit.
As shown in Figure 1, the reception user water return outlet 31 is connected to as heat supply user 4 with heat supply network management by total return pipe
Heat is provided, and is provided with total return water temperature sensor 7 on total return pipe.The water outlet of the heat accumulating type electric heater unit 2
It is connected to by total water supplying pipe with heat supply network management and provides heat for heat supply user 4, and be provided with total supply water temperature on total water supplying pipe and pass
Sensor 8.
As shown in figure 3, the device is additionally provided with PLC host, PLC host supplies water with total return water temperature sensor 7, always respectively
The total return water temperature sensor 9 of temperature sensor 8, heat accumulating type electric heater unit, the total return water temperature sensor 10 of heat pump unit, heat pump
The total leaving water temperature sensors 11 of unit, outside air temperature sensor connection.PLC host monitor global cycle pump 5, heat pump unit are followed simultaneously
The working condition of ring pump 6, net for air-source heat pump units 1 and heat accumulating type electric heater unit 2.
The working principle of the invention and process:
1, main waterway recycles: user's return water enters flow self-seeker 3 by receiving user's water return outlet 31, passes through air
Source heat pump unit 1 and the circulation of flow self-seeker 3 heat up, and export from conveying heat accumulating type electric heater unit water outlet 34, warp
5 driving of global cycle pump is conveyed to heat supply user 4 after heating again into heat accumulating type electric heater unit 2.Repeatedly.
2, the effect and water flow inside of flow self-seeker 3: user's return water enters stream by receiving user's water return outlet 31
The lower cavity for measuring self-seeker 3, due to the barrier and user's circling water flow rate < heat pump water requirement of lower sieve plate 35, user is returned
Water is transported to net for air-source heat pump units 1 essentially by conveying heat pump unit water outlet 32, after the heating of net for air-source heat pump units 1,
Flow self-seeker 3 is sent back to by receiving heat pump unit water return outlet 33, because 1 flow of net for air-source heat pump units is big, part hot water
Flow self-seeker 3 is sent out by conveying heat accumulating type electric heater unit water outlet 34, part hot water passes through on upper sieve plate 36
Sieve pore 37 downwards convey, by lower sieve plate 35 enter flow self-seeker 3 lower cavity, with receive user's water return outlet 31 into
The user's return water mixing come is transported to net for air-source heat pump units 1 by conveying heat pump unit water outlet 32, again by air-source heat
Pump assembly 1 heats, and so constantly, constantly increase the water temperature in flow self-seeker 3.1 He of final net for air-source heat pump units
The system that flow self-seeker 3 forms has the characteristic of the small flow of high temperature difference, matches user's heating demand.
3, in heat pump unit the heat pump service life balance method: the cumulative operation time of every heat pump of PLC host record.Starting
When, it is preferential to start the least heat pump of runing time, when stopping, preferential time longest heat pump out of service.
4, the group control method of heat pump unit: after the total supply water temperature t of user setting is set, PLC host automatically will by 485 communications
The return water temperature of heat pump is set as t and sets -2 DEG C, and particularly, this temperature has upper limit value, in case heat pump efficiency is too low.
Hereafter, the total leaving water temperature sensors 11 of heat pump unit acquire total leaving water temperature of heat pump unit, with user's setting value t
If comparing, PLC host controls the operation or stopping of heat pump in heat pump group as follows, so that heat pump group's leaving water temperature be made to reach
Setting value.
Load heat pump: heat pump always goes out water temperature < tIf–tDifference(minus tolerance temperature), every n seconds loads one.
Keep heat pump: tIf-tDifference< heat pump always goes out water temperature < tIf, remain operational number.
Off-load heat pump: tIf< heat pump always goes out water temperature, one group of every n seconds off-load.
So far, heat pump unit can be treated as to the variable ultra-large type heat pump of a heating capacity.
5, the team control of heat pump circulating pump: when large size application, in order to save electric energy, more heat pump units is usually configured and are followed
Ring pump 6.
Balance the working time of more heat pump unit circulating pumps 6: the work of every heat pump unit circulating pump 6 of PLC host record
Make the time, preferential to start the least heat pump unit circulating pump 6 of runing time when starting, when stopping, the preferential time out of service is most
Long heat pump unit circulating pump 6.
6 entry condition of heat pump unit circulating pump: PLC host opens pump to net for air-source heat pump units 1 by 485 communication detections
Signal.
Heat pump unit circulating pump 6 starts quantity: the pump operation number=operation of heat pump number/total water pump number of total heat pump number * takes upwards
Integer.Particularly, heat pump circuits freeze in order to prevent, and PLC host at least starts a water pump.
6, lectotype selection elasticity is larger, need to be from reliability of heat-supply system, equipment life, paddy electricity price, peak electricity price lattice, ordinary telegram valence
Lattice, increase-volume condition etc. comprehensively consider.Firstly, heat accumulating type electric heater unit guarantees to be able to satisfy independent heat supply under electric heating state,
That is electrical power and thermal power > thermic load；Secondly, heat pump running hours under nominal operating condition, heating capacity are able to satisfy independent confession
Heat.
Just 7, usual heat pump has cop (Energy Efficiency Ratio) index, for the convenience of control logic operation, invention defines some
It is assumed that virtual cop.
The peak fcop=electricity electricity price/paddy electricity electricity price * 0.95
Pcop=ordinary telegram electricity price/paddy electricity electricity price * 0.95
The gcop=net for air-source heat pump units limit starts the corresponding Energy Efficiency Ratio of temperature
Wherein 0.95 be heat accumulating type electric heater unit heat conversion, i.e. the maximum effective heat release of heat accumulating type electric heater unit
Amount/total power consumption.
8, in 2 two kinds of heat source combined heats of net for air-source heat pump units 1 and heat accumulating type electric heater unit, survey calculation is needed
The real-time cop of heat pump enables PLC host to determine which kind of heat source is allowed to run, how to run.
PLC host acquires heat pump unit thermal power, the data of heat pump unit electrical power, calculates the total hot merit of scop=heat pump
Rate/gross electric capacity.
Since the data of heat pump unit thermal power lag behind the data of heat pump unit electrical power, PLC host is to heat pump unit
The data of electrical power delay certain time for calculating, and delay the time and are set according to actual conditions.
9, operational mode 1- manual mode: PLC host supervises net for air-source heat pump units 1 and heat accumulating type electric heater unit 2
It does not control, the operation of net for air-source heat pump units 1 and heat accumulating type electric heater unit 2 is voluntarily managed by user.
10, operational mode 2- heat-flash mode: PLC host command air supply heat pump unit 1 and heat accumulating type electric heater unit 2 are by setting
Fixed leaving water temperature operation, does not consider influence of the conditions such as outside air temperature to heat pump, heat accumulating type electric heater unit 2 is not forced only to exist
Paddy electricity period starts electric heating, to guarantee heating effect for guiding.
11, the mono- accumulation of heat mode of operational mode 3-: PLC host command heat accumulating type electric heater unit 2 is automatic by the temperature of setting
Operation, PLC host command net for air-source heat pump units 1 are shut down.
12, the mono- heat pump mode of operational mode 4-: PLC host command net for air-source heat pump units 1 is transported automatically by the temperature of setting
Row, PLC host command heat accumulating type electric heater unit 2 are shut down.
13, operational mode 5- economic model: providing identical heat, using the least net for air-source heat pump units 1 of cost
Or heat accumulating type electric heater unit 2 or combination carry out heat supply.
The Energy Efficiency Ratio of net for air-source heat pump units 1 is influenced by ambient air temperature, ambient air humidity, leaving water temperature etc., is led to
The corresponding temperature of specific Energy Efficiency Ratio that indicatrix checks in is crossed there may be error, causes whether to judge net for air-source heat pump units 1
It participates in heat supply and mistake occurs, increase and spend.The corresponding accurate temperature of specific Energy Efficiency Ratio is searched out by actual motion, it can be more quasi-
Really judge whether net for air-source heat pump units 1 participates in heat supply, reduces and spend.
(1) when paddy electricity:
Work as outdoor temperature > TPaddy, TPaddyReferring to that the net for air-source heat pump units limit starts temperature, net for air-source heat pump units 1 carries out heat supply,
The temperature raising as needed of heat accumulating type electric heater unit 2.Otherwise, only heat accumulating type electric heater unit 2 carries out heat supply.
After net for air-source heat pump units 1 is run, compare scop and gcop.
If scop > gcop+0.05 (this value is adjustable), T after this end of runPaddy- 1 DEG C (this value is adjustable)；
If scop < gcop-0.05 (this value is adjustable), T after this end of runPaddy+ 1 DEG C (this value is adjustable).
Described 0.05 is acceptable value range, when lower deviation does not adjust T within 0.05 on scopPaddyValue.
(2) when ordinary telegram:
Work as outdoor temperature > TIt is flat, TIt is flatFinger ordinary telegram electricity price/paddy electricity electricity price * 0.95 value is Energy Efficiency Ratio, heats curve according to heat pump
Figure inquiry obtains running temperature when this Energy Efficiency Ratio of net for air-source heat pump units 1, and at this moment, net for air-source heat pump units 1 carries out heat supply, stores
The temperature raising as needed of heat type electric heater unit 2.Otherwise, only heat accumulating type electric heater unit 2 carries out heat supply；Such as TIt is flat=-7 DEG C.When
When outside air temperature is greater than -7 DEG C, identical heat is generated, net for air-source heat pump units 1 is spent less than heat accumulating type electric heater unit 2.
After net for air-source heat pump units 1 is run, compare scop and pcop.
If scop > pcop+0.05 (this value is adjustable), T after this end of runIt is flat- 1 DEG C (this value is adjustable)；
If scop < pcop-0.05 (this value is adjustable), T after this end of runIt is flat+ 1 DEG C (this value is adjustable).
Described 0.05 is acceptable value range, when lower deviation does not adjust T within 0.05 on scopIt is flatValue.
(3) when peak electricity:
Work as outdoor temperature > TPeak, TPeakFinger peak electricity electricity price/paddy electricity electricity price * 0.95 value is Energy Efficiency Ratio, heats curve according to heat pump
Figure inquiry obtains running temperature when this Energy Efficiency Ratio of net for air-source heat pump units 1, and at this moment, net for air-source heat pump units 1 carries out heat supply, stores
The temperature raising as needed of heat type electric heater unit 2.Otherwise, only heat accumulating type electric heater unit 2 carries out heat supply；Such as TIt is flat=-2 DEG C.When
When outside air temperature is greater than -2 DEG C, identical heat is generated, net for air-source heat pump units 1 is spent less than heat accumulating type electric heater unit 2.
After net for air-source heat pump units 1 is run, compare scop and fcop.
If scop > fcop+0.05 (this value is adjustable), T after this end of runPeak- 1 DEG C (this value is adjustable)；
If scop < fcop-0.05 (this value is adjustable), T after this end of runPeak+ 1 DEG C (this value is adjustable).
Described 0.05 is acceptable value range, when lower deviation does not adjust T within 0.05 on fcopPeakValue.
(4) there is the processing method after heat accumulating type electric heater unit 2 starts electric heating in peak electricity, ordinary telegram period:
Detect outside air temperature > TPaddy, that is, start heat pump；
The regenerator temperature of heat accumulating type electric heater unit 2 is improved to maximum value；
Reduce pcop, fcop, increases peak electricity, ordinary telegram period heat pump operating time, increase the value of gcop, make the paddy electricity period
1 operating time of net for air-source heat pump units reduces to increase by 2 accumulation of heat duration of heat accumulating type electric heater unit；
(5) peak electricity, ordinary telegram period regenerative apparatus start the processing method after electrically heated situation disappears:
After heat accumulating type electric heater unit 2 still has certain amount of stored heat (settable) when paddy electricity starts, increase pcop, fcop,
The value for reducing gcop when being adjusted to initial value, reduces the paddy electricity regenerator temperature of heat accumulating type electric heater unit 2.
14, operational mode 6- energy-saving mode:
Detect outside air temperature > TPaddy, the water outlet temperature setting of net for air-source heat pump units 1 is user demand by control system
Temperature and automatic running, control system by the temperature that the water outlet temperature setting of heat accumulating type electric heater unit 2 is user demand and from
Dynamic operation.
Processing method after regenerative apparatus starting electric heating occur in peak electricity, ordinary telegram period: heat accumulating type electric heating dress is improved
The regenerator temperature of 2 paddy electricity accumulation of heats is set to maximum value, level electricity period regenerative apparatus in peak starts electrically heated situation and disappears, and paddy electricity
After heat accumulating type electric heater unit 2 still has certain amount of stored heat (settable) when beginning, the paddy electricity for reducing heat accumulating type electric heater unit 2 stores
Hot temperature.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (10)
1. net for air-source heat pump units and heat accumulating type electric heater unit combining heating system, it is characterised in that: including air source heat pump
Unit (1), heat accumulating type electric heater unit (2) and flow self-seeker (3), flow self-seeker (3) include container, container
It is inside provided with upper sieve plate (36) and lower sieve plate (35), upper sieve plate (36) and lower sieve plate (35) are provided with sieve pore (37), on container
Portion is provided with conveying heat accumulating type electric heater unit water outlet (34) and receives heat pump unit water return outlet (33), and lower vessel portion is provided with
User's water return outlet (31) and conveying heat pump unit water outlet (32) are received, conveying heat pump unit water outlet (32) passes through first pipe
It is connected to the water inlet of net for air-source heat pump units (1), the water outlet of net for air-source heat pump units (2) by second pipe and receives heat
Pump assembly water return outlet (33) connection, conveying heat accumulating type electric heater unit water outlet (34) pass through third pipeline and heat accumulating type electric heating
The water inlet of device (2) is connected to.
2. net for air-source heat pump units according to claim 1 and heat accumulating type electric heater unit combining heating system, feature
Be: the reception user water return outlet (31) is connected to by total return pipe with heat supply network management, and total return is provided on total return pipe
Water temperature sensor (7).
3. net for air-source heat pump units according to claim 1 and heat accumulating type electric heater unit combining heating system, feature
Be: the water outlet of the heat accumulating type electric heater unit (2) is connected to by total water supplying pipe with heat supply network management, is set on total water supplying pipe
It is equipped with total supply water temperature sensor (8).
4. net for air-source heat pump units according to claim 1 and heat accumulating type electric heater unit combining heating system, feature
It is: is provided with heat pump unit circulating pump (6) and the total return water temperature sensor (10) of heat pump unit, institute in the first pipe
The total leaving water temperature sensors of heat pump unit (11) are provided on the second pipe stated.
5. net for air-source heat pump units according to claim 1 and heat accumulating type electric heater unit combining heating system, feature
It is: is provided with global cycle pump (5) and the total return water temperature sensor (9) of heat accumulating type electric heater unit on the third pipeline.
6. net for air-source heat pump units according to claim 1-5 and heat accumulating type electric heater unit combining heating system
Heat supply method, it is characterised in that: control net for air-source heat pump units (1) and heat accumulating type electric heater unit respectively by control system
(2) heat supply, including following heat supply mode: economic model, energy-saving mode, heat-flash mode, single accumulation of heat mode, single heat pump mould are carried out
Formula, manual mode.
7. the heat supply side of net for air-source heat pump units according to claim 6 and heat accumulating type electric heater unit combining heating system
Method, it is characterised in that: economic model: providing identical heat, carries out heat supply, including following feelings using the least mode of expense
Condition:
When paddy electricity: when practical outdoor temperature is greater than heat pump limit starting temperature, net for air-source heat pump units (1) carries out heat supply, no
Then, only heat accumulating type electric heater unit (2) carries out heat supply；
When ordinary telegram: when practical outdoor temperature is less than heat pump limit starting temperature, heat accumulating type electric heater unit (2) carries out heat supply；
When practical outdoor temperature is greater than heat pump limit starting temperature, then using ordinary telegram electricity price/paddy electricity electricity price * coefficient A value as energy
Ratio is imitated, determines the outdoor temperature T when operation of net for air-source heat pump units (1) this Energy Efficiency RatioIt is flat, when practical outdoor temperature is greater than TIt is flatWhen,
Net for air-source heat pump units (1) participates in heat supply, conversely, only heat accumulating type electric heater unit (2) carries out heat supply；
When peak electricity: when practical outdoor temperature is less than heat pump limit starting temperature, heat accumulating type electric heater unit (2) carries out heat supply；
When practical outdoor temperature is greater than heat pump limit starting temperature, then using peak electricity electricity price/paddy electricity electricity price * coefficient A value as energy
Ratio is imitated, determines the outdoor temperature T when operation of net for air-source heat pump units (1) this Energy Efficiency RatioPeak, when practical outdoor temperature is greater than TPeakWhen,
Net for air-source heat pump units (1) participates in heat supply, conversely, only heat accumulating type electric heater unit (2) carries out heat supply；
The maximum effectively thermal discharge/total power consumption of coefficient A=heat accumulating type electric heater unit.
8. the heat supply side of net for air-source heat pump units according to claim 7 and heat accumulating type electric heater unit combining heating system
Method, it is characterised in that: the economic model adjusts heat supply side by the actual Energy Efficiency Ratio of detection net for air-source heat pump units (1)
Formula, specific as follows:
When paddy electricity: when practical outdoor temperature is greater than heat pump limit starting temperature, net for air-source heat pump units (1) carries out heat supply, no
Then, only heat accumulating type electric heater unit (2) carries out heat supply；
When ordinary telegram: the actual Energy Efficiency Ratio of the net for air-source heat pump units (1) is greater than ordinary telegram electricity price/paddy electricity electricity price * coefficient A value
When, reduce the outdoor temperature T for judging heat-supplying modeIt is flatValue, conversely, then increasing outdoor temperature TIt is flatValue；When next heat supply,
It will be with the outdoor temperature T after reducing or increasingIt is flatFor judgment criteria, determine whether net for air-source heat pump units (1) participates in heat supply；
When peak electricity: the actual Energy Efficiency Ratio of the net for air-source heat pump units (1) is greater than peak electricity electricity price/paddy electricity electricity price * coefficient A value
When, reduce the outdoor temperature T for judging heat-supplying modePeakValue, conversely, then increasing outdoor temperature TPeakValue；When next heat supply,
It will be with the outdoor temperature T after reducing or increasingPeakFor judgment criteria, determine whether net for air-source heat pump units (1) participates in heat supply.
9. the heat supply side of net for air-source heat pump units according to claim 6 and heat accumulating type electric heater unit combining heating system
Method, it is characterised in that:
Energy-saving mode: the Energy Efficiency Ratio of net for air-source heat pump units (1) real-time monitoring is greater than net for air-source heat pump units (1) normal work
It is user demand by the water outlet temperature setting of net for air-source heat pump units (1) and heat accumulating type electric heater unit (2) when minimum Energy Efficiency Ratio
Temperature and automatic running；
Heat-flash mode: being user demand by the water outlet temperature setting of net for air-source heat pump units (1) and heat accumulating type electric heater unit (2)
Temperature and automatic running.
10. the heat supply of net for air-source heat pump units according to claim 6 and heat accumulating type electric heater unit combining heating system
Method, it is characterised in that:
Single accumulation of heat mode: net for air-source heat pump units (1) stops working, and sets heat accumulating type electric heater unit (2) by control system
Leaving water temperature, heat accumulating type electric heater unit (2) press leaving water temperature automatic running；
Single heat pump mode: heat accumulating type electric heater unit stops working, and passes through going out for control system setting air source heat pump unit (1)
Coolant-temperature gage, net for air-source heat pump units (1) press leaving water temperature automatic running；
Manual mode: user voluntarily manages the operation of net for air-source heat pump units (1) and heat accumulating type electric heater unit (2).
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| CN112856547A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Electromagnetic valve assembly device for improving heat efficiency of heat pump heating system and control method thereof |
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