CN106091103B - Constant temperature water supply determines frequency heat-pump hot-water Energy conservation measures in heating system - Google Patents
Constant temperature water supply determines frequency heat-pump hot-water Energy conservation measures in heating system Download PDFInfo
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- CN106091103B CN106091103B CN201610506439.0A CN201610506439A CN106091103B CN 106091103 B CN106091103 B CN 106091103B CN 201610506439 A CN201610506439 A CN 201610506439A CN 106091103 B CN106091103 B CN 106091103B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The step of the present invention relates to a kind of constant temperature water supplies to determine frequency heat-pump hot-water Energy conservation measures in heating system, and feature is the energy-saving control method of control system is：It establishes heat pump water supply and calculates temperature TgjWith indoor design temperature TsdAnd outdoor environment temperature TwBetween basic function formula, the water supply for establishing heat pump calculates temperature TgjThe the first correction function formula calculated, the water supply for establishing heat pump calculate temperature TgjThe the second correction function formula calculated；The start-stop of the compressor of frequency Teat pump boiler is determined by control, makes water supply actual temperature TgsTemperature T is calculated higher than by obtained supply water of the second correction function formulagj0~1 DEG C；Control system is by detecting water supply actual temperature TgsTemperature T is calculated with supplying watergjDeviation, adjust the water supply of threeway ratio adjusting valve and return water ratio, make water supply actual temperature TgsTemperature T is calculated with supplying watergjIt reaches unanimity.Its advantage is：Different building heat preserving characteristics and the difference of hot-water coil pipe laying are taken into full account, automatic decision amendment in the process of running, energy-saving effect is more obvious, and supply water temperature is constant, and the temperature fluctuation in room is small.
Description
Technical field
The present invention relates to the energy-saving control methods that a kind of constant temperature water supply determines frequency heat-pump hot-water heating system.
Background technology
Teat pump boiler is more and more applied in heating system as a kind of high-efficiency energy-saving heat aquatic products.Current nothing
By being to determine frequency or determine frequency Teat pump boiler design of radiant heating floor system, water supply/return water temperature is generally 45 DEG C/35 DEG C, space air
Temperature control controls Teat pump boiler start-stop to realize by floor surface temperature or room air temperature mostly.Because of heat-pump hot-water
The efficiency of device declines with the rise of supply water temperature, and outdoor environment temperature change is larger within a cycle of heating, and
The variation of outdoor environment temperature is also larger in one day, therefore, larger in different time sections its heating demand difference.Work as outdoor environment
When temperature is higher, required heating demand is smaller, and the supply water temperature of floor heating can be reduced suitably, and the efficiency of such Teat pump boiler is just
It can improve.To realize the energy saving purpose of operation of heat pump, heat pump is reduced as far as possible on the premise of requirement is met for water temperature
Degree, but the definite of supply water temperature depends on required heating demand, and it is not only related with outdoor environment temperature, indoor design temperature,
It is and related with the heat-insulating property of buildings exterior-protected structure and heat exchange coil laying.But since outdoor environment temperature dynamic becomes
Change, heat-insulating property and the heat exchange coil laying of different buildings differ greatly and the warming of different crowd difference, how to use
A kind of simple method come determine optimal heat pump supply water temperature be the key that realize operation of heat pump it is energy saving.Simultaneously because fixed frequency heat
Pump realizes the control of supply water temperature using start-stop control, and supply water temperature fluctuation is big, has one to the temperature stability of heating room
Fixed influence, therefore also it necessary to consider how realizing the stabilization of supply water temperature in systems.
The content of the invention
A kind of constant temperature water supply the purpose of the present invention is overcome the deficiencies in the prior art is provided and determines frequency heat-pump hot-water heating system
System energy-saving control method can be kept the temperature special according to the variation and building itself of outdoor environment temperature and indoor design temperature
Property, determine the optimal temperature of supply water of frequency heat pump, and start-stop control is carried out to determining frequency Teat pump boiler with this, frequency heat pump is determined in realization
Energy saving in running, while it is equipped with threeway ratio adjusting valve, constant supply water temperature in watering cycle side.
In order to achieve the above object, the present invention is achieved in that it is that a kind of constant temperature water supply determines frequency heat-pump hot-water heating
Energy saving of system control method, it is characterised in that determining frequency heat-pump hot-water heating system includes determining frequency Teat pump boiler, water tank, threeway
Ratio adjusting valve, water circulating pump, hot-water coil pipe, control system, water tank temperature sensor, supply water temperature sensor, return water temperature
Spend sensor, room air temperature sensor and outdoor environment temperature sensor；The water outlet difference of wherein described hot-water coil pipe
Connected with the water return outlet of water tank and a water inlet of threeway ratio adjusting valve, the threeway ratio adjusting valve it is another enter water
It mouthful is connected with the water outlet of water tank, it is described to determine frequency Teat pump boiler the water in water tank is heated；The water circulating pump
Water inlet connected with the water outlet of threeway ratio adjusting valve, the water outlet of water circulating pump is connected with the water inlet of hot-water coil pipe；
The temperature of the water tank temperature sensor senses is the hot water temperature T in water tankrs, the supply water temperature sensor sensing
Temperature is the water supply actual temperature T of hot-water coil pipe water inletgs, the temperature of the return water temperature sensor sensing goes out for hot-water coil pipe
The return water actual temperature T at the mouth of a riverhs, the temperature of the room air temperature sensor sensing is indoor room actual air temperature
Tns, the temperature of the outdoor environment temperature sensor sensing is outdoor outdoor environment temperature Tw, the Energy Saving Control of control system
The step of method, is as follows：
（One）The water supply of heat pump calculates temperature TgjCalculate determining for functional expression
（a）The control system is special according to the thermic load of the performance for determining frequency Teat pump boiler and typical heating room first
Property, it establishes heat pump water supply and calculates temperature TgjWith indoor design temperature TsdAnd outdoor environment temperature TwBetween basic function formula；
（b）The control system passes through to water supply actual temperature TgsAnd return water actual temperature ThsDifference is judged, in base
On the basis of plinth functional expression, temperature T is calculated to the water supply of heat pumpgjIt is modified, the water supply for establishing heat pump calculates temperature TgjIt calculates
The first correction function formula；
（c）The control system is according to the room actual air temperature T after stabilizationnsWith indoor design temperature TsdDeviation
Value on the basis of the first correction function formula, supplies water to heat pump and calculates temperature TgjIt is corrected again, establishes the water supply meter of heat pump
Calculate temperature TgjThe the second correction function formula calculated；
（Two）The start-stop of the compressor of frequency Teat pump boiler is determined by control, makes water supply actual temperature TgsIt is repaiied higher than by second
Obtained supply water of positive function formula calculates temperature Tgj0~1 DEG C；The start-stop of Teat pump boiler is by water tank temperature sensor control
System, as hot water temperature Trs≤ supplying water calculates temperature TgjWhen, heat pump is opened, as hot water temperature Trs>=supplying water calculates temperature Tgj+2℃
When, Teat pump boiler is shut down；
（Three）Control system is by detecting water supply actual temperature TgsTemperature T is calculated with supplying watergj
Deviation, adjust the water supply of threeway ratio adjusting valve and return water ratio, make water supply actual temperature TgsIt is calculated with supplying water
Temperature TgjIt reaches unanimity.
In the technical program, the control system can also be automatic to obtain stable room after system works 1~2 day
Interior room actual air temperature TnsWith indoor design temperature TsdFixation average deviation, the meter as the second correction function formula
Foundation is calculated, as long as so user sets room temperature, control system can be instantly available water supply and calculate temperature Tgj, without treating room
Further according to the room actual air temperature T after stabilization after interior temperature stabilizationnsWith indoor design temperature TsdDeviation be modified.
Compared with prior art, the present invention it has the following advantages that：
（1）When outdoor environment temperature is higher, heating system supply water temperature can be reduced suitably, Teat pump boiler efficiency compared with
Height realizes energy saving in running；
（2）System has taken into full account different building heat preserving characteristics and the difference of hot-water coil pipe laying, in the process of running
Automatic decision amendment, supplying water, calculating temperature is more accurate, and energy-saving effect is also more obvious；
（3）Supply water temperature is constant, and the temperature fluctuation of heating room is small.
Description of the drawings
Fig. 1 is the heating system structure principle chart that the present invention is implemented.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
As shown in Figure 1, it, which is a kind of constant temperature water supply, determines frequency heat-pump hot-water Energy conservation measures in heating system, frequency Heat Pump is determined
Water heating system includes determining frequency Teat pump boiler 1, water tank 2, threeway ratio adjusting valve 3, water circulating pump 4, hot-water coil pipe 5, control
System 6 processed, water tank temperature sensor 7, supply water temperature sensor 8, return water temperature sensor 9, room air temperature sensor
10 and outdoor environment temperature sensor 11；The water outlet of wherein described hot-water coil pipe 5 respectively with the water return outlet of water tank 2 and threeway
The water inlet connection of ratio adjusting valve 3, another water inlet of the threeway ratio adjusting valve 3 connect with the water outlet of water tank 2
It is logical；The water inlet of the water circulating pump 4 is connected with the water outlet of threeway ratio adjusting valve 3, the water outlet and hot water of water circulating pump 4
The water inlet connection of coil pipe 5, it is described to determine frequency Teat pump boiler 1 water in water tank 2 is heated；The water tank temperature
The temperature that sensor 7 senses is the hot water temperature T in water tank 2rs, the temperature that the supply water temperature sensor 8 senses is inflow
The water supply actual temperature T of 5 hot water of hot-water coil pipegs, the temperature that the return water temperature sensor 9 senses is to be flowed out from hot-water coil pipe 5
Return water return water actual temperature Ths, the temperature that the room air temperature sensor 10 senses is indoor room actual air
Temperature Tns, the temperature that the outdoor environment temperature sensor 11 senses is outdoor outdoor environment temperature Tw, the section of control system 6
The step of energy control method, is as follows：
（One）The water supply of heat pump calculates temperature TgjCalculate determining for functional expression
（a）Because the variation of indoor and outdoor temperature is big, the influence to determining heat pump supply water temperature is also maximum；The control system 6
First according to the performance for determining frequency Teat pump boiler 1 and the thermic load characteristic of typical heating room, the water supply for establishing heat pump calculates temperature
Spend TgjWith indoor design temperature TsdAnd outdoor environment temperature TwBetween basic function formula I be：Tgj=a+b*（Tsd-Tw）, base
In plinth functional expression I, the thermic load characteristic of typical heating room is simulated, by specifically determining frequency heat pump under the different indoor and outdoor temperature difference
Performance test, linear regression is carried out to experimental data and obtains coefficient a and coefficient b, the value range of coefficient a is generally 20~
40, the value range of coefficient b is generally 0.5~2；Because of whole day outdoor environment temperature TwChange greatly, can be used every 0.5 it is small when by
The water supply that basic function formula I recalculates heat pump calculates temperature TgjOnce；
（b）Because the heat-insulating property of buildings exterior-protected structure is different, the thermic load characteristic of heating room, the control are directly affected
System 6 processed passes through the water supply actual temperature T to heat pumpgsAnd return water actual temperature ThsDifference is judged, in basic function formula I
On the basis of, temperature T is calculated to the water supply of heat pumpgjIt is modified, the water supply for establishing heat pump calculates temperature TgjFirst calculated is repaiied
Positive function formula II is：Tgj=a+b*（Tsd-Tw）+k*（Tgs-Ths）, in the first correction function formula II, k is building enclosure amendment system
Number, k is related with building enclosure heat preservation property and water pump circular flow, generally takes 0.5；
（c）Because the laying of hot-water coil pipe is different, to reach same indoor design temperature Tsd, then heat pump supply water temperature is not
Together；The control system 6 is according to the room actual air temperature T after stabilizationnsWith indoor design temperature TsdDeviation,
On the basis of one correction function formula II, temperature T is calculated to the water supply of heat pumpgjIt is corrected again, the water supply for establishing heat pump calculates
Temperature TgjCalculate the second correction function formula III be：Tgj=a+b*（Tsd-Tw）+k*（Tgs-Ths）+（Tsd-Tns）；
（D) system divides automatic mode and manual mode, indoor design temperature T under automatic modesdBe defaulted as 18 DEG C or according to
The indoor design temperature T of actual conditions selectionsdDefault value, can be 17 DEG C, 19 DEG C, 20 DEG C etc.；Indoor setting under manual mode
Temperature TsdIt sets manually；
Because of whole day outdoor environment temperature TwChange greatly, can be used every 0.5 it is small when recalculate heat pump supply water calculate temperature
TgjOnce；
（Two）Start-stop by the compressor for controlling Teat pump boiler 1 makes water supply actual temperature TgsIt is corrected higher than by second
Obtained supply water of functional expression III calculates temperature Tgj0~1 DEG C；The start-stop of Teat pump boiler 1 is controlled by water tank temperature sensor 7
System, as hot water temperature Trs≤ supplying water calculates temperature TgjWhen, heat pump is opened, as hot water temperature Trs>=supplying water calculates temperature Tgj+2℃
When, Teat pump boiler 1 is shut down；
（Three）Control system 6 is by detecting water supply actual temperature TgsTemperature T is calculated with supplying watergjIt is inclined
Difference adjusts the water supply of threeway ratio adjusting valve 3 and return water ratio, makes water supply actual temperature TgsTemperature is calculated with supplying water
TgjIt reaches unanimity.
In the present embodiment, the control system 6 can also be automatic to obtain stable interior after system works 1~2 day
Room actual air temperature TnsWith indoor design temperature TsdFixation average deviation, the meter as the second correction function formula III
Foundation is calculated, as long as so user sets room temperature, control system can be instantly available water supply and calculate temperature Tgj, without treating room
Further according to the room actual air temperature T after stabilization after interior temperature stabilizationnsWith indoor design temperature TsdDeviation be modified.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with a variety of variations, modification, replacement and deformation in the case of departing from the principle of the present invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (2)
1. a kind of constant temperature water supply determines frequency heat-pump hot-water Energy conservation measures in heating system, it is characterised in that determines frequency heat-pump hot-water heating
System includes determining frequency Teat pump boiler（1）, water tank（2）, threeway ratio adjusting valve（3）, water circulating pump（4）, hot-water coil pipe
（5）, control system（6）, water tank temperature sensor（7）, supply water temperature sensor（8）, return water temperature sensor（9）, room
Air temperature sensor（10）And outdoor environment temperature sensor（11）；Wherein described hot-water coil pipe（5）Water outlet respectively with
Water tank（2）Water return outlet and threeway ratio adjusting valve（3）A water inlet connection, the threeway ratio adjusting valve（3）It is another
One water inlet and water tank（2）Water outlet connection；The water circulating pump（4）Water inlet and threeway ratio adjusting valve（3）'s
Water outlet connects, water circulating pump（4）Water outlet and hot-water coil pipe（5）Water inlet connection, it is described to determine frequency Teat pump boiler
（1）To water tank（2）Interior water is heated；The water tank temperature sensor（7）The temperature of sensing is water tank（2）Interior
Hot water temperature Trs, the supply water temperature sensor（8）The temperature of sensing is hot-water coil pipe（5）The water supply actual temperature of water inlet
Tgs, the return water temperature sensor（9）The temperature of sensing is hot-water coil pipe（5）The return water actual temperature T of water outleths, the room
Between air temperature sensor（10）The temperature of sensing is indoor room actual air temperature Tns, the outdoor environment temperature sensing
Device（11）The temperature of sensing is outdoor outdoor environment temperature Tw, control system（6）Energy-saving control method the step of it is as follows：
（One）The water supply of heat pump calculates temperature TgjCalculate determining for functional expression
（a）Because the variation of indoor and outdoor temperature is big, the influence to determining heat pump supply water temperature is also maximum；The control system（6）It is first
First basis determines frequency Teat pump boiler（1）Performance and typical heating room thermic load characteristic, the water supply for establishing heat pump calculates temperature
Spend TgjWith indoor design temperature TsdAnd outdoor environment temperature TwBetween basic function formula I be：Tgj=a+b*（Tsd-Tw）, base
In plinth functional expression I, the thermic load characteristic of typical heating room is simulated, by specifically determining frequency heat pump under the different indoor and outdoor temperature difference
Performance test, linear regression is carried out to experimental data and obtains coefficient a and coefficient b, the value range of coefficient a is 20~40, is
The value range of number b is 0.5~2；
（b）Because the heat-insulating property of buildings exterior-protected structure is different, the thermic load characteristic of heating room, the control system are directly affected
System（6）Pass through the water supply actual temperature T to heat pumpgsAnd return water actual temperature ThsDifference is judged, in basic function formula I
On the basis of, temperature T is calculated to the water supply of heat pumpgjIt is modified, the water supply for establishing heat pump calculates temperature TgjFirst calculated is corrected
Functional expression II is：Tgj=a+b*（Tsd-Tw）+k*（Tgs-Ths）, in the first correction function formula II, k is building enclosure amendment system
Number, k is related with building enclosure heat preservation property and water pump circular flow, takes 0.5；
（c）The control system（6）According to the room actual air temperature T after stabilizationnsWith indoor design temperature TsdDeviation,
In the first correction function formula（Ⅱ）On the basis of, it supplies water to heat pump and calculates temperature TgjIt is corrected again, establishes the water supply of heat pump
Calculate temperature TgjThe the second correction function formula calculated（Ⅲ）；
（Two）Frequency Teat pump boiler is determined by control（1）Compressor start-stop, make water supply actual temperature TgsIt is repaiied higher than by second
Positive function formula（Ⅲ）Obtained supply water calculates temperature Tgj0~1 DEG C；Teat pump boiler（1）Start-stop passed by water tank temperature
Sensor（7）Control, as hot water temperature Trs≤ supplying water calculates temperature TgjWhen, heat pump is opened, as hot water temperature Trs>=supplying water calculates temperature
Spend TgjAt+2 DEG C, Teat pump boiler（1）It shuts down；
（Three）Control system（6）By detecting water supply actual temperature TgsTemperature T is calculated with supplying watergj
Deviation, adjust threeway ratio adjusting valve（3）Water supply and return water ratio, make water supply actual temperature TgsTemperature is calculated with supplying water
Spend TgjIt reaches unanimity.
2. constant temperature water supply according to claim 1 determines frequency heat-pump hot-water Energy conservation measures in heating system, it is characterised in that
The control system（6）It can also be automatic to obtain stable indoor room actual air temperature after system works 1~2 day
TnsWith indoor design temperature TsdFixation average deviation, as the second correction function formula（Ⅲ）Calculation basis, as long as so with
Family sets room temperature, and control system can be instantly available water supply and calculate temperature Tgj, without the root again after indoor temperature stabilization
According to the room actual air temperature T after stabilizationnsWith indoor design temperature TsdDeviation be modified.
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| CN108954716B (en) * | 2018-07-28 | 2021-03-19 | 广东美的暖通设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN109612170B (en) * | 2018-08-29 | 2023-07-28 | 杭州正行能源科技有限公司 | Low-temperature environment heating system realized by using wide-temperature heat pump and use method |
| CN110894978B (en) * | 2019-04-10 | 2022-04-29 | 北京西门子西伯乐斯电子有限公司 | Air source heat pump heating system and controller and control method thereof |
| CN111895488B (en) * | 2019-05-06 | 2022-10-21 | 河北大唐国际张家口热电有限责任公司 | Steam inlet regulating valve applied to heat supply network system and control method |
| CN114484555B (en) * | 2022-01-11 | 2023-05-12 | 烽台科技（北京）有限公司 | Heat supply temperature recommendation method and device, electronic equipment and readable storage medium |
| CN114353388A (en) * | 2022-01-12 | 2022-04-15 | 杨伟国 | Energy storage device integrating evaporator/condenser and heat exchanger functions and system thereof |
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| JP5501282B2 (en) * | 2011-04-07 | 2014-05-21 | 三菱電機株式会社 | HEAT PUMP SYSTEM AND HEAT PUMP SYSTEM CONTROL METHOD |
| JP5781060B2 (en) * | 2012-12-25 | 2015-09-16 | 三菱電機株式会社 | Air conditioner |
| CN103277571A (en) * | 2013-06-19 | 2013-09-04 | 陈建平 | Dynamic return water temperature flow regulating valve |
| CN103912914B (en) * | 2014-04-22 | 2016-10-05 | 珠海格力电器股份有限公司 | Floor heating control method |
| CN104344453A (en) * | 2014-11-03 | 2015-02-11 | 广州德能热源设备有限公司 | Floor heating system with variable-frequency air source heat pump |
| CN104949192A (en) * | 2015-07-13 | 2015-09-30 | 顺德职业技术学院 | Energy-saving control method for floor radiant heating system comprising variable-frequency heat-pump water heater |
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