CN102798224A - Solar energy and air source heat pump linkage hot water system and control method thereof - Google Patents
Solar energy and air source heat pump linkage hot water system and control method thereof Download PDFInfo
- Publication number
- CN102798224A CN102798224A CN2012103338472A CN201210333847A CN102798224A CN 102798224 A CN102798224 A CN 102798224A CN 2012103338472 A CN2012103338472 A CN 2012103338472A CN 201210333847 A CN201210333847 A CN 201210333847A CN 102798224 A CN102798224 A CN 102798224A
- Authority
- CN
- China
- Prior art keywords
- water
- attemperater
- temperature
- control
- moisturizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The invention discloses a solar energy and air source heat pump linkage hot water system and a control method thereof. The system comprises a solar heat collector, an air source heat pump unit, a temperature preservation water tank connected with a system water-replenishing solenoid valve and a control system. The control method comprises the following procedures of: controlling a solar circulating water pump, controlling the system water-replenishing solenoid valve, controlling a circulating water pump of the air source heat pump unit and the air source heat pump system and controlling a user circulating water pump. With the solar energy and air source heat pump linkage hot water system and the control method thereof, the sufficient utilization of solar energy can be achieved, the operation of the air source heat pump unit is reduced as much as possible, the purpose of saving energy sources to maximum extent is achieved, and the demand of 24 h uninterrupted hot water for users is satisfied.
Description
Technical field
The present invention relates to a kind of solar energy and air source heat pump interlock hot-water heating system and control method thereof.
Background technology
The hot-water heating system of solar energy of using on the current engineering and air source interlock; The start and stop of air source heat pump only rely on the water temperature of judging attemperater to control; Owing to lack water level is carried out the differentiation control (containing moisturizing controls) in the different periods with evening on daytime, also lack monitoring and control to the variation of the intensity of illumination of environment temperature, solar energy etc., cause air source heat pump carries out much unnecessary operations; Cause bigger energy waste, be embodied in:
1) shortage is controlled the energy waste that (containing moisturizing controls) causes to the differentiation that water level carries out daytime and evening
The water use peak phase of general hot-water heating system, between the lights and evening when the water use peak phase arrived, water level dropped to the moisturizing position very soon, and this moment, the system water supplement magnetic valve was opened moisturizing to 100% water level.Because the peak water consumption is bigger; The cold that moisturizing is brought into causes the hot water temperature to drop to below the start-up temperature of air source more greatly, and air source heat pump brings into operation, and through moving for a long time one case hot water is heated to serviceability temperature at night; To the next morning; Because hot water temperature's starting point is very high, and need not replenish a lot of cold water and heat, the efficient of solar energy significantly descends.And in several months preferably, air source heat pump there is no need to move at night fully in sun in summer, causes in the evening in the summer of sweltering heat owing to lack corresponding control automatically, and air source heat pump also can move.
Also have some hot-water heating systems to adopt regularly early, middle and late three timing moisturizing to full water liquid levels, this is the same with simple water level control moisturizing, the unnecessary operation that keeps away unavoidable heat pump.Such as moisturizing in morning to full water liquid level, owing to the peak water through evening, rate of water make-up is very big; The hot water temperature drops to below the heat pump start-up temperature, operation of heat pump, and solar energy is also worked simultaneously; Be heated to serviceability temperature up to Jiang Shui, this is unnecessary fully in the some months in summer.
2) lack the monitoring of environment temperature and some control parameters are revised and the energy waste that causes automatically
A, to hot water temperature's correction: general hot-water heating system is owing to lack to revise to the variation of environment temperature and to some control parameters and cause energy waste, is set at 55 ℃ like the hot water temperature of the whole year.If can revise automatically to the hot water design temperature; The hot water temperature is set at 50～55 ℃ with winter; Be set at 46～50 ℃ season in spring and autumn, be set at 41～45 ℃ summer, can obviously improve the efficient of solar energy like this and produce more hot water; Thereby reduce the running time of air source, reduce energy consumption.According to data, to 10 ℃ of the every declines of flat plate collector inflow temperature, the efficient of heat collector can promote 15% (relative value); To the vacuum pipe solar under the equal conditions variation, collector efficiency can promote 5%.
B, to the correction of air source heat pump start and stop temperature: general hot-water heating system lacks effectively to be revised the start and stop control temperature of heat pump the variation of environment temperature; Cause the unnecessary work of air source heat pump or throughout the year through 50～55 ℃ of high-temperature area work of being everlasting, the air source heat pump operational efficiency is low, energy consumption is high; Data shows; Under equal evaporating temperature, 10 ℃ of the every declines of hot water temperature, the efficient of air source heat pump improves 16%.In addition, because heat pump is operated under high evaporation temperature and the high condensation temperature summer, high voltage protective and overload of compressor taking place easily, has shortened the service life of heat pump.
3) lack the energy waste that monitoring at any time of solar illuminating intensity caused
All solar energy and air source heat pump interlock hot-water heating system on the engineering; As long as because of there being the rainy weather about of short duration two hours to trigger operation of heat pump; Will water be heated to serviceability temperature; No matter whether subsequently sun light intensity is enough strong, also regardless of leaving solar energy heating time long enough whether for.
Summary of the invention
The present invention is intended to overcome the deficiency of prior art, and a kind of solar energy and air source heat pump interlock hot-water heating system and control method thereof are provided.Through introducing input signals such as environment temperature, hot water temperature, hot water water level, time; Through the in-house experts database various control datas are dynamically revised; Effectively overcome the control defective of above-mentioned traditional solar energy and air source heat pump interlock hot-water heating system; Reach the energy-conservation purpose of using solar energy to greatest extent and driving heat pump less, energy-saving effect is remarkable.
Technical scheme of the present invention is,
Said solar energy and air source interlock hot-water heating system comprises solar thermal collector 3, net for air-source heat pump units 1, is connected to the attemperater 4 and the control system 2 of system water supplement magnetic valve 5; The water inlet of said solar thermal collector 3 and delivery port with communicating pipe first 9 with first delivery port of attemperater 4 with first water inlet is corresponding is communicated with, and said communicating pipe first 9 be provided with and make the hydronic solar energy system water circulating pump 7 of water; Second temperature sensor 10 is housed in the said solar thermal collector 3; The water inlet of said net for air-source heat pump units 1 and delivery port with communicating pipe second 14 with second delivery port of attemperater 4 with second water inlet is corresponding is communicated with, and said communicating pipe second 14 be provided with air source heat pump system water circulating pump 6; Be provided with three-temperature sensor 12 and liquid level sensor 13 in the said attemperater 4; User's feedwater piping 16 of said attemperater 4 is provided with user's water circulating pump 8 and the 4th temperature sensor 15; Outdoor first temperature sensor 11 that is provided with; The signal output part of said second temperature sensor 10, first temperature sensor 11, three-temperature sensor 12, the 4th temperature sensor 15 and liquid level sensor 13 all is connected with control system 2 corresponding signal input parts, and control system 2 corresponding signal output parts are connected with the working power control utmost point of net for air-source heat pump units 1, system water supplement magnetic valve 5, air source heat pump system water circulating pump 6, solar energy system water circulating pump 7 and user's water circulating pump 8 respectively.Wherein, said user's water circulating pump 8 is booster pump or back water pump.
The control method of above-mentioned solar energy and air source heat pump interlock hot-water heating system comprises:
(1) to the control of solar energy water circulating pump:
The solar energy water circulating pump is by temperature signal and temperature signal Parallel Control;
When hot water temperature's in water temperature in the solar thermal collector and the attemperater the temperature difference in greater than the control system during preset temperature approach; The solar energy water circulating pump is opened by the control system; Make between attemperater and the solar thermal collector and form water-flow circuit, the water in the attemperater is heated;
When hot water temperature's in water temperature in the solar thermal collector and the attemperater the temperature difference in less than the control system during preset temperature approach, control system closing solar energy water circulating pump;
During preset temperature, the solar energy water circulating pump is opened by the control system, makes between attemperater and the solar thermal collector and forms hot water circulation loop in water temperature in the solar thermal collector is lower than the control system;
In water temperature in the solar thermal collector is higher than the control system during preset temperature, control system closing solar energy water circulating pump;
(2) to the control of system water supplement magnetic valve:
The control system is provided with normal moisturizing control model and forces the moisturizing control model;
Daytime 8:00～17:00; Normal moisturizing pattern is reinstated; The control system is divided into several water supply time sections with 8:00～17:00; The full water water level that rate of water make-up and this finish-time time period of each water supply time section put is calculated and set to the attemperater 100% full water liquid level that the control system presets in attemperater initial water level and the system when judging 8:00 poor; Carry out intermittent moisturizing control, moisturizing to attemperater 100% full water liquid level when 17:00 according to the full-water level of finish-time time period point and this time point; 17:00～next day 8:00, normal moisturizing pattern stops; Force the 24 hour operation of moisturizing pattern.
Normal moisturizing control model:
Be in the finish-time point of a certain water supply time section of control systemic presupposition when the time; When the attemperater liquid level is lower than the full water water level of this preset in control system time point; Control system open system moisturizing magnetic valve; Make between moisturizing pipeline and the attemperater and form path, attemperater is carried out moisturizing;
Be in the finish-time point of a certain water supply time section of control systemic presupposition when the time, when the attemperater liquid level reaches the full water water level of this time point preset the control system in, control system closing system water supplement magnetic valve, stop moisturizing;
Force the moisturizing control model:
At the bottom of the preset pressure moisturizing during water level, control system open system moisturizing magnetic valve makes between moisturizing pipeline and the attemperater and forms path, and attemperater is carried out moisturizing in the attemperater liquid level is low to moderate the control system;
During preset pressure moisturizing full-water level, control system closing system water supplement magnetic valve stops moisturizing in the attemperater liquid level reaches the control system;
(3) to the control of net for air-source heat pump units and air source heat pump system water circulating pump:
The control system sets the hot water temperature according to outdoor temperature, different outdoor temperatures, and preset hot water temperature is different; When water temperature in the attemperater is lower than in the system preset hot water temperature; Net for air-source heat pump units and air source heat pump system water circulating pump are opened by the control system; Make between attemperater and the net for air-source heat pump units and form water-flow circuit, the water in the attemperater is heated;
When water temperature in the attemperater was heated in the system preset hot water temperature, control system closing net for air-source heat pump units and air source heat pump system water circulating pump stopped the water circulation between attemperater and the net for air-source heat pump units;
When system forced moisturizing, net for air-source heat pump units and air source heat pump system water circulating pump were opened operation.
(4) to the control of user's water circulating pump:
When water temperature in user's feedwater piping was lower than control systemic presupposition temperature value, user's water circulating pump was opened by the control system, made user's water accumulation pipe road and attemperater form path, and the hot water in the attemperater gets into user's feedwater piping;
When water temperature in user's feedwater piping rises to control systemic presupposition temperature value, control system closing user water circulating pump;
When the attemperater liquid level is low to moderate the pressure moisturizing water level of control systemic presupposition, control system closing user water circulating pump;
When the attemperater liquid level reached the pressure moisturizing full water place value of control systemic presupposition, user's water circulating pump was opened by the control system, made user's water accumulation pipe road and attemperater form path, and the hot water in the attemperater gets into user's feedwater piping.
Below in conjunction with system architecture control method is described further:
The control method of said solar energy and air source interlock hot-water heating system; Comprise control to the solar energy water circulating pump; To the control of system water supplement magnetic valve, to the control of net for air-source heat pump units and air source heat pump system water circulating pump with to the control of user's water circulating pump; Be specially:
(1) to the control of solar energy water circulating pump:
The solar energy water circulating pump is by temperature signal and temperature signal Parallel Control.
After the control system receives the temperature signal of second temperature sensor and three-temperature sensor, by the unlatching of the temperature signal that relatively draws control solar energy water circulating pump or close:
When temperature approach greater than the control system in preset temperature approach, control system output control signal is opened the solar energy water circulating pump;
When temperature difference system less than the control system in preset temperature approach, control system output control signal is closed the solar energy water circulating pump;
During preset temperature value, control system output control signal is opened the solar energy water circulating pump in the solar thermal collector water temperature is lower than the control system;
During preset temperature value, control system output control signal is closed the solar energy water circulating pump in the solar thermal collector water temperature is higher than the control system;
(2) to the control of system water supplement magnetic valve:
The control system is provided with normal moisturizing control model and forces the moisturizing control model;
Daytime 8:00～17:00; Normal moisturizing pattern is reinstated; The control system is divided into several water supply time sections with 8:00～17:00; The full water water level that rate of water make-up and this finish-time time period of each water supply time section put is calculated and set to the attemperater 100% full water liquid level that the control system presets in attemperater initial water level and the system when judging 8:00 poor; Carry out intermittent moisturizing control, moisturizing to attemperater 100% full water liquid level when 17:00 according to the full-water level of finish-time time period point and this time point; Evening 17:00～next day 8:00, normal moisturizing pattern stops; Force the 24 hour operation of moisturizing pattern.
Normal moisturizing control model:
Be in the finish-time point of a certain water supply time section of control systemic presupposition when the time; After the control system receives the attemperater liquid level signal of liquid level sensor transmission; According to this some full water water level value of setting in attemperater liquid level signal comparison attemperater level value and the system, the control system is by the unlatching of the liquid level difference signal controlling moisturizing magnetic valve that relatively draws or close finish-time:
During the full water water level of this preset time point, control system open system moisturizing magnetic valve makes between moisturizing pipeline and the attemperater and forms path, and attemperater is carried out moisturizing in the attemperater liquid level is lower than the control system;
During the full water water level of this preset time point, control system closing system water supplement magnetic valve stops moisturizing in the attemperater liquid level reaches the control system;
Force the moisturizing control model:
The control system receives only the attemperater liquid level signal that liquid level sensor transmits; The control system is according to attemperater liquid level signal relatively water level value, pressure moisturizing full water place value at the bottom of the preset pressure moisturizing in attemperater level value and the control system, and the control system is by the unlatching of the liquid level difference signal controlling moisturizing magnetic valve that relatively draws or close:
During water level value, control system output control signal is opened moisturizing magnetic valve and net for air-source heat pump units at the bottom of the attemperater level value is low to moderate the pressure moisturizing of control systemic presupposition,
When the attemperater level value reached preset pressure moisturizing full water place value, control system output control signal made the moisturizing closed electromagnetic valve;
(3) to the control of net for air-source heat pump units and air source heat pump system water circulating pump:
After the control system receives the temperature signal of three-temperature sensor; Compare with the intrasystem preset hot water temperature's value of control (said preset hot water temperature's value is according to the setting of the temperature signal of outdoor first temperature sensor), by starting or stoping of temperature signal control air source source pump that relatively draws and air source heat pump system water circulating pump:
When the attemperater water temperature was lower than preset hot water temperature and is worth, control system output control signal made net for air-source heat pump units and air source heat pump system water circulating pump start heating;
When water temperature is heated to preset hot water temperature when being worth, control system output control signal is closed net for air-source heat pump units and air source heat pump system water circulating pump;
When system forced moisturizing, net for air-source heat pump units and air source heat pump system water circulating pump were opened operation.
(4) to the control of user's water circulating pump:
After the control system receives user's feedwater piping water temperature signal of the 4th temperature sensor; The temperature value that the control system relatively presets in water temperature and the control system in user's feedwater piping according to temperature signal, the control system is by the unlatching of the temperature difference signal controlling moisturizing magnetic valve that relatively draws or close:
When water temperature in user's feedwater piping was lower than control systemic presupposition temperature value, control system output control signal was opened user's water circulating pump,
When water temperature in user's feedwater piping rose to control systemic presupposition temperature value, control system output control signal was closed user's water circulating pump;
After the control system receives the attemperater liquid level signal of liquid level sensor transmission; According to pressure moisturizing level value, the full water level value that the attemperater liquid level signal is relatively preset in attemperater level value and the control system, the control system is by the unlatching of the liquid level difference signal controlling user water circulating pump that relatively draws or close:
During water level value, control system output control signal is closed user's water circulating pump at the bottom of the attemperater level value is low to moderate preset pressure moisturizing,
When the attemperater level value reached preset pressure moisturizing full water place value, control system output control signal was opened user's water circulating pump.
Below in conjunction with principle the present invention is described further:
1) to the control of solar energy water circulating pump
The control system of this solar air source heat pumps system comprises manual and automatic dual mode to the control of solar energy water circulating pump; Wherein automated manner is controlled according to the temperature difference between solar thermal collector water temperature and the attemperater water temperature; If between the two the temperature difference is during greater than the temperature value of systemic presupposition; Then open the solar energy water circulating pump automatically, the hot water circuit in the solar thermal collector is returned attemperater, the water with the attemperater bottom is recycled to solar thermal collector simultaneously; When the temperature difference between solar thermal collector water temperature and the attemperater water temperature during, then stop the solar energy water circulating pump automatically less than the temperature value of systemic presupposition.
When the solar thermal collector water temperature is very low, be lower than when controlling the systemic presupposition temperature, the solar energy system circulating pump is opened automatically, prevents water freezing in heat collector cold season, freezing solar thermal collector.When the water temperature in being recycled to heat collector is higher than control systemic presupposition temperature, then stop the solar energy system circulating pump automatically.
2) control of system water supplement magnetic valve
Control through input signals such as time, water levels, be divided into normal moisturizing pattern and force two kinds of control modes of moisturizing pattern.
Normal water supplementing method: 17:00～8:00 at night, system stops moisturizing; 8:00～17:00 by day; Through judging initial water level and 100% full water liquid level poor in the morning; Decide the rate of water make-up (the control system is divided into several water supply time sections with 8:00～17:00, for example sets by the hour, and each hour is a water supply time section) in each time period.Come the linear finish-time of setting each time period to put the full water liquid level that need reach according to this difference and the ratio of period on daytime.For example the morning, initial water level was 40% water level; Then need replenish 60% hot water the same day; On average to 6.7% the hot water that per hour need replenish the full water amount; That is to say that the morning, 9:00 must must must arrive 100% water level with water level promoting to 53.4% during to 10:00 with water level promoting to 46.7% during to 17:00.When morning during 9:00, if water level does not reach 46.7%, then opens solenoid valve moisturizing is if water level reaches 46.7% and closes magnetic valve; Then, when morning during 10:00, if water level does not reach 53.4%, then opens solenoid valve moisturizing is if water level reaches 53.4% and closes magnetic valve, by that analogy.
Force water supplementing method: force water supplementing method controlled by water level; When water level drops to end during water level of forcing moisturizing; No matter be daytime or evening, the system water supplement magnetic valve all powers on and carries out moisturizing, (can set until moisturizing to the full-water level of forcing moisturizing; Like 35% water level), in moisturizing, start air source heat pump and heat; Force the 24 hour operation of moisturizing pattern.
3) control of net for air-source heat pump units and air source heat pump system water circulating pump
Control through input signals such as time, water level and environment temperatures, be specially under certain environment temperature, the hot water temperature in the attemperater must arrive a certain temperature and a certain water level sometime, and the time interval can be set (generally can be 1 hour).Because moisturizing is to carry out the branch time period; It is certain in the regular hour section, mending the cold water of going into; That is to say sometime at interval in, must be heated to the hot water design temperature with mending the cold water of going into, replenish by heat pump when the heat of solar energy is not enough; When the heat that replenishes reaches the total amount of heat that needs in this time interval (when water temperature reaches design temperature), heat pump is out of service automatically.When another time interval arrives, carry out hot water temperature's judgement and heat pump again and whether need move judgement.
Environment temperature is to the correction of air source heat pump operational factor: in the control system environment temperature is divided into several warm areas; In the different warm areas; The design temperature of hot water is also different, and air source heat pump system is controlled start and stop according to the logical relation of attemperater hot water temperature and heat pump start and stop temperature.The different environment temperature range, air source heat pump system is opened different with the control temperature that stops.
The forced service of net for air-source heat pump units: when forcing moisturizing, heat pump moves simultaneously.
The water circulating pump of net for air-source heat pump units and air source interlock control, while start-stop, air source heat pump are provided with the current protection.
4) control of the circularly-supercharged pump of user (or back water pump)
The circularly-supercharged pump of user: the hot water temperature who is responsible for through timing or circulation controls.
The user loops back water pump: the hot water temperature who is responsible for through circulation controls.
Solar energy of the present invention and air source interlock hot-water heating system and control method thereof are through realizing the interlock control of solar energy and air source heat pump and the Energy Saving Control of hot-water heating system miscellaneous equipment to solar energy system circulating pump, system water supplement magnetic valve, air source heat pump, the circularly-supercharged pump Comprehensive Control of user.
Wherein, control system carries out the correction adjusting of air source heat pump automatic start-stop design temperature according to environment temperature and attemperater temperature.
Wherein, the control system is divided into several warm areas with environment temperature, the different environment temperature range, and it is different with the design temperature that stops that air source heat pump is opened automatically.
Wherein, The normal moisturizing of system water supplement magnetic valve is to be jointly controlled by time, water level; Moisturizing divides time point to carry out the gap moisturizing; Each rate of water make-up is dynamically determined by the water-head of initial water level and 100% water level, can shorten the each run time of heat pump so effectively, and the quantity of heat production (sun light intensity) of solar energy is carried out repeatedly monitoring and utilizing.
Adopt solar energy of the present invention and air source interlock hot-water heating system and control method thereof; Can reach and make full use of solar energy; Reduce the net for air-source heat pump units operation as far as possible,, satisfy 24 hours uninterrupted hot water demands of user simultaneously to reach the purpose of the maximum saving energy.
Description of drawings
Fig. 1 is solar energy of the present invention and air source heat pump interlock hot-water heating system sketch map.
Among the figure: 1, net for air-source heat pump units; 2, control system; 3, solar thermal collector; 4, attemperater; 5, system water supplement magnetic valve; 6, air source heat pump system water circulating pump; 7, solar energy system water circulating pump; 8, user's water circulating pump; 9, pipeline first; 10, second temperature sensor; 11, first temperature sensor; 12, three-temperature sensor; 13, liquid level sensor; 14, pipeline second; 15, the 4th temperature sensor; 16, user's feedwater piping.
The specific embodiment
Embodiment 1
As shown in Figure 1, said solar energy and air source interlock hot-water heating system comprises solar thermal collector 3, net for air-source heat pump units 1, is connected to the attemperater 4 and the control system 2 of system water supplement magnetic valve 5; The water inlet of said solar thermal collector 3 and delivery port with communicating pipe first 9 with first delivery port of attemperater 4 with first water inlet is corresponding is communicated with, and said communicating pipe first 9 be provided with and make the hydronic solar energy system water circulating pump 7 of water; Second temperature sensor 10 is housed in the said solar thermal collector 3; The water inlet of said net for air-source heat pump units 1 and delivery port with communicating pipe second 14 with second delivery port of attemperater 4 with second water inlet is corresponding is communicated with, and said communicating pipe second 14 be provided with air source heat pump system water circulating pump 6; Be provided with three-temperature sensor 12 and liquid level sensor 13 in the said attemperater 4; User's feedwater piping 16 of said attemperater 4 is provided with user's water circulating pump 8 and the 4th temperature sensor 15; Outdoor first temperature sensor 11 that is provided with; The signal output part of said second temperature sensor 10, first temperature sensor 11, three-temperature sensor 12, the 4th temperature sensor 15 and liquid level sensor 13 all is connected with control system 2 corresponding signal input parts, the corresponding signal output parts of control system 2 respectively can systemic circulation water pump 7 with net for air-source heat pump units 1, system water supplement magnetic valve 5, air source heat pump system water circulating pump 6, sun and the working power control utmost point of user's water circulating pump 8 be connected.Said control system 2 adopts the Industry Control single-chip microcomputer or the existing PLC controller of prior aries.
Embodiment 2
1) enforcement of solar energy water circulating pump control
In attemperater and solar thermal collector, be separately installed with temperature sensor.On daytime, after the sun came out, solar thermal collector absorbed sunlight; The water temperature of the inside raises gradually; When solar thermal collector and the attemperater temperature difference (T2-T3) during greater than a setting value (being generally 8 ℃), the closing of contact of circular flow temperature difference controller, the solar energy water circulating pump starts.At this moment, the solar energy water circulating pump draws water from the attemperater bottom and is sent to solar thermal collector, and the hot water in the solar thermal collector flows into attemperater; Till the temperature difference (T2-T3) is lower than a setting value (being generally 4 ℃); The solar energy water circulating pump stops, and solar thermal collector absorbs solar energy, continues to heat water; Circulation in this way, the water in whole attemperater all is heated; For guaranteeing cold season; Solar thermal collector is not damaged by frost, and when solar thermal collector water temperature T 2 is lower than 5 ℃, (can set), and the solar energy water circulating pump starts operation; When solar thermal collector water temperature T 2 is higher than 13 ℃, (can set), the solar energy water circulating pump is out of service;
2) enforcement of system water supplement solenoid control
In attemperater, be provided with the continous way liquid level sensor, the free parameter of control system itself through at different time points liquid level being controlled, realizes putting for a long time the gap moisturizing.Moisturizing is divided into normal moisturizing and forces two kinds of control modes of moisturizing.
17:00～8:00 at night, system stops moisturizing; 8:00～17:00 by day; Through judging initial water level and 100% full water liquid level poor in the morning; Decide the rate of water make-up (the control system is divided into several water supply time sections with 8:00～17:00, for example sets by the hour, and each hour is a water supply time section) in each time period.Come the linear finish-time of setting each time period to put the full water liquid level that need reach according to this difference and the ratio of period on daytime.For example the morning, initial water level was 40% water level; Then need replenish 60% hot water the same day; On average to 6.7% the hot water that per hour need replenish the full water amount; That is to say that the morning, 9:00 must must must arrive 100% water level with water level promoting to 53.4% during to 10:00 with water level promoting to 46.7% during to 17:00.When morning during 9:00, if water level does not reach 46.7%, then opens solenoid valve moisturizing is if water level reaches 46.7% and closes magnetic valve; Then, when morning during 10:00, if water level does not reach 53.4%, then opens solenoid valve moisturizing is if water level reaches 53.4% and closes magnetic valve, by that analogy.
Force water supplementing method: force water supplementing method controlled by water level; When water level drops to end during water level of forcing moisturizing; No matter be daytime or evening, the system water supplement magnetic valve all powers on and carries out moisturizing, (can set until moisturizing to the full water liquid level of forcing moisturizing; Like 35% water level), in moisturizing, start air source heat pump and heat.
3) enforcement of net for air-source heat pump units and air source heat pump system water circulating pump control
Three-temperature sensor is arranged in attemperater; In surrounding air, be provided with first temperature sensor; Control for net for air-source heat pump units; This control system is divided into several warm areas with environment temperature, the different environment temperature range, and air source heat pump system 1 is opened different with each temperature that stops.Table specific as follows:
4) enforcement of the circularly-supercharged pump of user (or back water pump) control
Be furnished with the 4th temperature sensor at user's feed pipe; When this temperature is lower than a certain design temperature; The circularly-supercharged pump of user (or back water pump) starts; Hot water in the attemperater gets into circulation in user's feed pipe, and temperature is elevated to uniform temperature in feed pipe, then closes the circularly-supercharged pump of user (or back water pump);
Also can adopt the control mode of Timing water supply to the control of the circularly-supercharged pump of user;
The circularly-supercharged pump of user (or back water pump), the using and the reserved require per 12 hours automatic switchover one action states of 2 water pumps.Simultaneously, when the end water level of forcing the moisturizing liquid level triggered, the circularly-supercharged pump of user (or back water pump) was out of service; When water level reached the full water liquid level of forcing the moisturizing liquid level, the circularly-supercharged pump of user (or back water pump) resumed operation, to carry out excessive low water level protection;
Said control system is through introducing input signals such as environment temperature, hot water temperature, hot water water level, time; Through the in-house experts database various control datas are dynamically revised; The control object comprises solar energy system water circulating pump, system water supplement magnetic valve, air source heat pump and water circulating pump thereof, the circularly-supercharged pump of user (or back water pump); Can reach and make full use of solar energy; Reduce the net for air-source heat pump units operation as far as possible,, satisfy 24 hours uninterrupted hot water demands of user simultaneously to reach the purpose of the maximum saving energy.
Claims (3)
1. solar energy and air source heat pump interlock hot-water heating system is characterized in that said system comprises solar thermal collector (3), net for air-source heat pump units (1), is connected to the attemperater (4) and the control system (2) of system water supplement magnetic valve (5); The water inlet of said solar thermal collector (3) and delivery port are with first delivery port of the same attemperater of communicating pipe first (9) (4) and first water inlet is corresponding is communicated with, and said communicating pipe first (9) is provided with and makes the hydronic solar energy system water circulating pump of water (7); Second temperature sensor (10) is housed in the said solar thermal collector (3); The water inlet of said net for air-source heat pump units (1) and delivery port are with second delivery port and the corresponding connection of second water inlet of the same attemperater of communicating pipe second (14) (4), and said communicating pipe second (14) is provided with air source heat pump system water circulating pump (6); Be provided with three-temperature sensor (12) and liquid level sensor (13) in the said attemperater (4); User's feedwater piping (16) of said attemperater (4) is provided with user's water circulating pump (8) and the 4th temperature sensor (15); Outdoor first temperature sensor (11) that is provided with; The signal output part of said second temperature sensor (10), first temperature sensor (11), three-temperature sensor (12), the 4th temperature sensor (15) and liquid level sensor (13) all is connected with control system (2) corresponding signal input part, and the corresponding signal output part of control system (2) is controlled the utmost point with the working power of net for air-source heat pump units (1), system water supplement magnetic valve (5), air source heat pump system water circulating pump (6), solar energy system water circulating pump (7) and user's water circulating pump (8) respectively and is connected.
2. the system of claim 1 is characterized in that, said user's water circulating pump (8) is booster pump or back water pump.
3. the control method of solar energy and air source heat pump interlock hot-water heating system, this control method realizes in claim 1 or 2 described solar energy link hot-water heating system with air source heat pump; It is characterized in that said control method comprises:
(1) to the control of solar energy water circulating pump:
The solar energy water circulating pump is by temperature signal and temperature signal Parallel Control;
When hot water temperature's in water temperature in the solar thermal collector and the attemperater the temperature difference in greater than the control system during preset temperature approach; The solar energy water circulating pump is opened by the control system; Make between attemperater and the solar thermal collector and form water-flow circuit, the water in the attemperater is heated;
When hot water temperature's in water temperature in the solar thermal collector and the attemperater the temperature difference in less than the control system during preset temperature approach, control system closing solar energy water circulating pump;
During preset temperature, the solar energy water circulating pump is opened by the control system, makes between attemperater and the solar thermal collector and forms hot water circulation loop in water temperature in the solar thermal collector is lower than the control system;
In water temperature in the solar thermal collector is higher than the control system during preset temperature, control system closing solar energy water circulating pump;
(2) to the control of system water supplement magnetic valve:
The control system is provided with normal moisturizing control model and forces the moisturizing control model;
Daytime 8:00～17:00; Normal moisturizing pattern is reinstated; The control system is divided into several water supply time sections with 8:00～17:00; The attemperater 100% full water liquid level that the control system presets in attemperater initial water level and the system when judging 8:00 poor; Calculate and set each water supply time section rate of water make-up and this finish-time time period point the full water water level, according to finish-time time period point and the full-water level of this time point carry out intermittent moisturizing control, moisturizing to attemperater 100% full water liquid level when 17:00; 17:00～next day 8:00, normal moisturizing pattern stops; Force the 24 hour operation of moisturizing pattern;
Normal moisturizing control model:
Be in the finish-time point of a certain water supply time section of control systemic presupposition when the time; When the attemperater liquid level is lower than the full water water level of this preset in control system time point; Control system open system moisturizing magnetic valve; Make between moisturizing pipeline and the attemperater and form path, attemperater is carried out moisturizing;
Be in the finish-time point of a certain water supply time section of control systemic presupposition when the time, when the attemperater liquid level reaches the full water water level of this time point preset the control system in, control system closing system water supplement magnetic valve, stop moisturizing;
Force the moisturizing control model:
At the bottom of the preset pressure moisturizing during water level, control system open system moisturizing magnetic valve makes between moisturizing pipeline and the attemperater and forms path, and attemperater is carried out moisturizing in the attemperater liquid level is low to moderate the control system;
During preset pressure moisturizing full-water level, control system closing system water supplement magnetic valve stops moisturizing in the attemperater liquid level reaches the control system;
(3) to the control of net for air-source heat pump units and air source heat pump system water circulating pump:
The control system sets the hot water temperature according to outdoor temperature, different outdoor temperatures, and preset hot water temperature is different; When water temperature in the attemperater is lower than in the system preset hot water temperature; Net for air-source heat pump units and air source heat pump system water circulating pump are opened by the control system; Make between attemperater and the net for air-source heat pump units and form water-flow circuit, the water in the attemperater is heated;
When water temperature in the attemperater was heated in the system preset hot water temperature, control system closing net for air-source heat pump units and air source heat pump system water circulating pump stopped the water circulation between attemperater and the net for air-source heat pump units;
When system forced moisturizing, net for air-source heat pump units and air source heat pump system water circulating pump were opened operation;
(4) to the control of user's water circulating pump:
When water temperature in user's feedwater piping was lower than control systemic presupposition temperature value, user's water circulating pump was opened by the control system, made user's water accumulation pipe road and attemperater form path, and the hot water in the attemperater gets into user's feedwater piping;
When water temperature in user's feedwater piping rises to control systemic presupposition temperature value, control system closing user water circulating pump;
When the attemperater liquid level is low to moderate the pressure moisturizing water level of control systemic presupposition, control system closing user water circulating pump;
When the attemperater liquid level reached the pressure moisturizing full water place value of control systemic presupposition, user's water circulating pump was opened by the control system, made user's water accumulation pipe road and attemperater form path, and the hot water in the attemperater gets into user's feedwater piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333847.2A CN102798224B (en) | 2012-09-11 | 2012-09-11 | Solar energy and air source heat pump linkage hot water system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333847.2A CN102798224B (en) | 2012-09-11 | 2012-09-11 | Solar energy and air source heat pump linkage hot water system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102798224A true CN102798224A (en) | 2012-11-28 |
| CN102798224B CN102798224B (en) | 2014-01-15 |
Family
ID=47197432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210333847.2A Active CN102798224B (en) | 2012-09-11 | 2012-09-11 | Solar energy and air source heat pump linkage hot water system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102798224B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017245A (en) * | 2012-12-27 | 2013-04-03 | 法罗力热能设备(中国)有限公司 | Multi-energy integrated water heating system |
| CN103471254A (en) * | 2013-09-11 | 2013-12-25 | 深圳市派沃新能源科技有限公司 | Air source heat pump water heater |
| CN103591685A (en) * | 2013-11-15 | 2014-02-19 | 大连圣鼎工业装备有限公司 | Circulating and energy-saving water heater set of solar heat pump |
| CN103791627A (en) * | 2014-02-24 | 2014-05-14 | 同济大学 | Designing method for providing building hot water in energy conversation mode |
| CN104390360A (en) * | 2014-10-29 | 2015-03-04 | 广东万家乐燃气具有限公司 | Big data-based control method for intelligent multi-energy hot water system |
| CN104913514A (en) * | 2015-05-20 | 2015-09-16 | 湖南秋水长天环境能源科技有限公司 | Directly-heated type air source heat pump and solar period-divided constant-temperature constant-liquid-level control system |
| CN105222214A (en) * | 2015-11-05 | 2016-01-06 | 中南大学 | Solar thermal collector and air source heat pump combined heat water system and control method |
| CN105783277A (en) * | 2016-03-17 | 2016-07-20 | 上海市建筑科学研究院(集团)有限公司 | Solar water heating system assisting heating through air source heat pump and boiler and control method |
| CN106091438A (en) * | 2016-06-15 | 2016-11-09 | 广州大学 | A kind of parallel connection type solar heat pump hot-water system dynamic control method |
| CN107289633A (en) * | 2017-05-04 | 2017-10-24 | 江苏奥斯康新能源有限公司 | Intelligent solar air source heat pump all-in-one |
| CN107477891A (en) * | 2017-09-08 | 2017-12-15 | 真木农业设备（安徽）有限公司 | One kind divides season suitching type Hot water units |
| CN108050714A (en) * | 2017-12-30 | 2018-05-18 | 广州星辰热能股份有限公司 | A kind of multi-heat source heating equipment and its control method based on Internet of Things |
| CN108362019A (en) * | 2018-04-02 | 2018-08-03 | 广州西奥多科技有限公司 | A kind of space energy water heater control system and control method |
| CN109297085A (en) * | 2018-11-01 | 2019-02-01 | 青岛太和环境工程有限公司 | Control system and method for solar energy and air source heat pump concentrated hot watersystem |
| CN109307361A (en) * | 2018-10-10 | 2019-02-05 | 宁波市建筑设计研究院有限公司 | The energy-saving control method of air source heat pump |
| CN109668338A (en) * | 2018-12-25 | 2019-04-23 | 常州市市政工程设计研究院有限公司 | Solar water heating system under suitable for low temperature environment |
| CN111664580A (en) * | 2020-06-17 | 2020-09-15 | 青岛海信日立空调系统有限公司 | Heat pump hot water unit |
| CN112524825A (en) * | 2020-12-18 | 2021-03-19 | 深圳供电局有限公司 | Solar water heater control system and control method |
| CN113757777A (en) * | 2021-10-11 | 2021-12-07 | 盐城工学院 | Hot water time control temperature control supply system for civil residence |
| CN114772759A (en) * | 2022-04-19 | 2022-07-22 | 河海大学 | Heating installation aeration low-temperature water rewarming device |
| WO2023087700A1 (en) * | 2021-11-17 | 2023-05-25 | 青岛海信日立空调系统有限公司 | Multi-connected system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151499A (en) * | 1997-08-05 | 1999-02-26 | Nippon Electric Glass Co Ltd | Solar heat utilizing hot water supply system |
| CN2911537Y (en) * | 2006-06-02 | 2007-06-13 | 张勇 | Splitting solar water heater |
| CN201463298U (en) * | 2009-05-26 | 2010-05-12 | 王德元 | Efficient energy-saving solar heat pump water heating system |
| CN202769983U (en) * | 2012-09-11 | 2013-03-06 | 王德元 | Solar energy and air source heat pump linkage hot water system |
-
2012
- 2012-09-11 CN CN201210333847.2A patent/CN102798224B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151499A (en) * | 1997-08-05 | 1999-02-26 | Nippon Electric Glass Co Ltd | Solar heat utilizing hot water supply system |
| CN2911537Y (en) * | 2006-06-02 | 2007-06-13 | 张勇 | Splitting solar water heater |
| CN201463298U (en) * | 2009-05-26 | 2010-05-12 | 王德元 | Efficient energy-saving solar heat pump water heating system |
| CN202769983U (en) * | 2012-09-11 | 2013-03-06 | 王德元 | Solar energy and air source heat pump linkage hot water system |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017245A (en) * | 2012-12-27 | 2013-04-03 | 法罗力热能设备(中国)有限公司 | Multi-energy integrated water heating system |
| CN103017245B (en) * | 2012-12-27 | 2015-08-19 | 法罗力热能设备(中国)有限公司 | The integrated hot-water heating system of a kind of multiple-energy-source |
| CN103471254B (en) * | 2013-09-11 | 2015-12-23 | 深圳市派沃新能源科技有限公司 | A kind of air-source heat pump hot water |
| CN103471254A (en) * | 2013-09-11 | 2013-12-25 | 深圳市派沃新能源科技有限公司 | Air source heat pump water heater |
| CN103591685A (en) * | 2013-11-15 | 2014-02-19 | 大连圣鼎工业装备有限公司 | Circulating and energy-saving water heater set of solar heat pump |
| CN103591685B (en) * | 2013-11-15 | 2016-03-23 | 大连圣鼎工业装备有限公司 | A kind of solar heat pump circulating energy-saving Hot water units |
| CN103791627A (en) * | 2014-02-24 | 2014-05-14 | 同济大学 | Designing method for providing building hot water in energy conversation mode |
| CN103791627B (en) * | 2014-02-24 | 2015-10-28 | 同济大学 | A kind of method for designing of building energy conservation hot water |
| CN104390360A (en) * | 2014-10-29 | 2015-03-04 | 广东万家乐燃气具有限公司 | Big data-based control method for intelligent multi-energy hot water system |
| CN104390360B (en) * | 2014-10-29 | 2017-05-31 | 广东万家乐燃气具有限公司 | A kind of intelligent multiple-energy-source hot-water heating system control method based on big data |
| CN104913514A (en) * | 2015-05-20 | 2015-09-16 | 湖南秋水长天环境能源科技有限公司 | Directly-heated type air source heat pump and solar period-divided constant-temperature constant-liquid-level control system |
| CN105222214A (en) * | 2015-11-05 | 2016-01-06 | 中南大学 | Solar thermal collector and air source heat pump combined heat water system and control method |
| CN105222214B (en) * | 2015-11-05 | 2018-07-31 | 中南大学 | Solar thermal collector and air source heat pump combined heat water system and control method |
| CN105783277A (en) * | 2016-03-17 | 2016-07-20 | 上海市建筑科学研究院(集团)有限公司 | Solar water heating system assisting heating through air source heat pump and boiler and control method |
| CN105783277B (en) * | 2016-03-17 | 2018-10-02 | 上海市建筑科学研究院(集团)有限公司 | The solar water heating system and control method of air source heat pump and boiler auxiliary heating |
| CN106091438A (en) * | 2016-06-15 | 2016-11-09 | 广州大学 | A kind of parallel connection type solar heat pump hot-water system dynamic control method |
| CN107289633A (en) * | 2017-05-04 | 2017-10-24 | 江苏奥斯康新能源有限公司 | Intelligent solar air source heat pump all-in-one |
| CN107477891A (en) * | 2017-09-08 | 2017-12-15 | 真木农业设备（安徽）有限公司 | One kind divides season suitching type Hot water units |
| CN108050714A (en) * | 2017-12-30 | 2018-05-18 | 广州星辰热能股份有限公司 | A kind of multi-heat source heating equipment and its control method based on Internet of Things |
| CN108362019A (en) * | 2018-04-02 | 2018-08-03 | 广州西奥多科技有限公司 | A kind of space energy water heater control system and control method |
| CN108362019B (en) * | 2018-04-02 | 2020-02-18 | 广州西奥多科技有限公司 | Control method of space energy water heater |
| CN109307361A (en) * | 2018-10-10 | 2019-02-05 | 宁波市建筑设计研究院有限公司 | The energy-saving control method of air source heat pump |
| CN109297085A (en) * | 2018-11-01 | 2019-02-01 | 青岛太和环境工程有限公司 | Control system and method for solar energy and air source heat pump concentrated hot watersystem |
| CN109668338A (en) * | 2018-12-25 | 2019-04-23 | 常州市市政工程设计研究院有限公司 | Solar water heating system under suitable for low temperature environment |
| CN111664580A (en) * | 2020-06-17 | 2020-09-15 | 青岛海信日立空调系统有限公司 | Heat pump hot water unit |
| CN112524825A (en) * | 2020-12-18 | 2021-03-19 | 深圳供电局有限公司 | Solar water heater control system and control method |
| CN113757777A (en) * | 2021-10-11 | 2021-12-07 | 盐城工学院 | Hot water time control temperature control supply system for civil residence |
| WO2023087700A1 (en) * | 2021-11-17 | 2023-05-25 | 青岛海信日立空调系统有限公司 | Multi-connected system and control method thereof |
| CN114772759A (en) * | 2022-04-19 | 2022-07-22 | 河海大学 | Heating installation aeration low-temperature water rewarming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102798224B (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102798224B (en) | Solar energy and air source heat pump linkage hot water system and control method thereof | |
| CN104121703B (en) | Method and device for controlling direct heat type double-source heat pump water heater | |
| CN101949556B (en) | Hot water supply system and method using solar energy preferentially | |
| CN104101106B (en) | Directly-heated type double-source heat pump water heater and control method thereof | |
| CN201811343U (en) | Solar energy priority hot water supply system | |
| CN200996728Y (en) | Solar economizing hot-water system with air-energy function | |
| CN201429154Y (en) | Hot water system in solar energy heat pump water heater | |
| CN105276833B (en) | A kind of solar water heating system and heat pump heat refrigeration system and its method | |
| CN1313779C (en) | Technical method and apparatus for intelligent heating and water-heating utilizing solar energy | |
| CN104864449A (en) | Hot water heating device having solar energy and off-peak electricity heating energy storage function | |
| CN101825373A (en) | Solar hot-water, air-conditioning and construction integrated system | |
| CN109611937B (en) | Solar ground source heat pump and phase change heat storage coupling heat supply system and control method | |
| CN201903221U (en) | Solar energy, heat pump and capillary network composite hot water heating and refrigerating device | |
| CN102012130A (en) | Solar energy, heat pump and capillary network compound hot water heating/refrigerating device | |
| CN200968715Y (en) | Intelligent heat reclamation heat pump cold and hot water set | |
| CN202769983U (en) | Solar energy and air source heat pump linkage hot water system | |
| CN101526241B (en) | Bidirectional heat pump solar energy heating system | |
| CN110810084A (en) | Cascade phase change energy storage composite solar energy and ground source heat pump system | |
| CN203174099U (en) | Heat accumulating type solar-methane generation system | |
| CN204693564U (en) | A kind of hot water heating device with solar energy, low ebb electric heating energy | |
| CN204739735U (en) | Constant temperature of earth source heat pump, energy -saving control system | |
| CN2823866Y (en) | Solar intelligent apparatus for heating air and water | |
| CN201926024U (en) | Pressure-bearing bi-water tank circulating solar hot water control system | |
| CN106032918A (en) | Intelligent solar air-conditioning system | |
| CN205119551U (en) | Supply device based on solar energy - air source heat pump trigeminy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20121128 Assignee: Yilida Industrial Co., Ltd., Hu'nan Assignor: Wang Deyuan Contract record no.: 2014430000140 Denomination of invention: Solar energy and air source heat pump linkage hot water system and control method thereof Granted publication date: 20140115 License type: Exclusive License Record date: 20140724 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170731 Address after: 410117 Hunan province Changsha Wanjiali road two No. 98 Patentee after: Yilida Industrial Co., Ltd., Hu'nan Address before: 410117 Xinqiao seven group, Mawangdui Township, Furong district, Hunan, Changsha Patentee before: Wang Deyuan |