CN102305451B - Mixed ground source heat pump monitoring system and method based on health assessment technology - Google Patents
Mixed ground source heat pump monitoring system and method based on health assessment technology Download PDFInfo
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Abstract
The invention belongs to the technical field of monitoring of ground source heat pump air conditioners and relates to a mixed ground source heat pump monitoring system and method based on a health assessment technology, and the system and method can be used for solving the technical problems that the development of the monitoring and controlling technology of the existing ground source heat pump mixed system is not perfect enough and the like. The monitoring system comprises a monitoring subsystem, a load forecasting subsystem and a health assessment subsystem, wherein the health assessment subsystem and a controlling subsystem are connected. The monitoring method comprises the following steps: using the monitoring subsystem to collect data and store the data into a data storage device; using the load forecasting subsystem to extract the data collected by the monitoring subsystem, perform load forecasting and further store the load forecast data into the data storage device again; using the health assessment subsystem to store health index into the data storage device; and using the controlling system to control correspondingly. The system provided by the invention has the advantages that the health condition is assessed reasonably, the automation level of the system is improved, the labor intensity of management is reduced, and the cold and hot balance during the long term operation of the system is ensured; and the economical efficiency of the system under the condition of short term operation is ensured and the like.
Description
Technical field
The invention belongs to geothermal heat pump air-conditioner monitoring technique field, relate to hybrid earth source heat pump central air conditioner system, especially relate to a kind of hybrid earth source heat pump monitoring system and method based on the health evaluating technology.
Background technology
Because the otherness of weather, soil characteristic and the building type of various places, single earth-source hot-pump system often can not be suitable for, thereby need suit measures to local conditions, integrated use solar energy, ice cold-storage apparatus, surface water, shallow layer geothermal energy equal energy source are set up optimum heating ventilation air-conditioning system solution.The greatest problem of this class design is the operation control in later stage, at different condition, need select energy saving, economy, comfortableness, all good operation control strategies of reliability for use.But the monitoring system research of earth source heat pump does not also cause enough attention, makes a general survey of domestic and international present Research, and the monitoring of earth source heat pump hybrid system and control technology development are all perfect inadequately.At present, domestic monitoring and control about the earth source heat pump hybrid system also only is in the desk study stage, and all there is certain weak point in existing achievement.
Chinese patent literature discloses a kind of earth source heat pump central air-conditioning remote information monitoring system and method [application number: CN200910089636.7] thereof, this system is made up of central air-conditioning unit data collection station, grid and monitoring center, central air-conditioning unit data collection station is responsible for gathering the real-time parameter of central air-conditioning unit operation, and via grid, transfer to monitoring center.This scheme has also proposed a kind of method of utilizing said system that the central air conditioning group is monitored simultaneously.Such scheme has been realized concentrated supervision and the control to the central air conditioner system operational factor, can accomplish on-the-spot unmanned, improves economic benefit of enterprises.Yet such scheme is primarily aimed at single geothermal heat pump air-conditioning system, and in the practical engineering application, the hybrid earth-source hot-pump system of more employing is so the practical popularization significance that should invent is little.
People such as Zhang Xiaoli have proposed to solve traditional earth source heat pump monitoring by controller, touch screen technology and internet configuration software The Application of Technology in " based on the research of earth source heat pump long distance control system and the realization of WebAccess ", this method has improved the automaticity of system, promoted the ability of man-machine interaction aspect, made user's operational system according to actual needs.People such as Song Zhenlong propose to utilize LabVIEW to realize the long distance control system of earth source heat pump unit equipment in " based on the earth source heat pump unit equipment long distance control system of LabVIEW ", advantages such as it is easy to operate, flexible scalable that this remote monitoring and controlling system has, the user no longer uses telephone report unit data, has improved operating efficiency greatly.But two kinds of control methods all are the method for supervising at single geothermal heat pump air-conditioning system, and dissemination is little.And do not provide the method for the accurate evaluation system operation conditions of science, so be difficult to reach the control target, can't realize the optimal control of hybrid earth-source hot-pump system.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of and can accurately calculate the best adjustment time, realize the hybrid earth source heat pump monitoring system of adjusting in real time based on the health evaluating technology.
Another object of the present invention provides a kind of easy to implement, the hybrid earth source heat pump method for supervising based on the health evaluating technology easy and simple to handle.
For achieving the above object, the present invention has adopted following technical proposal: this is based on the hybrid earth source heat pump monitoring system of health evaluating technology, it is characterized in that, this monitoring system comprises the monitoring subsystem that can monitor hybrid earth source heat pump working condition and/or hybrid earth source heat pump working environment, can obtain the real-time Monitoring Data of monitoring subsystem and/or the load prediction subsystem of data of weather forecast and the hybrid earth source heat pump load of the above-mentioned data prediction of foundation, thereby the health evaluating subsystem that the load prediction data that can obtain the historical Monitoring Data of monitoring subsystem and load prediction subsystem are assessed the work health status of hybrid earth source heat pump, described health evaluating subsystem with can control hybrid earth source heat pump according to the health index of health evaluating subsystem and adjust the RACS of duty in real time and link to each other.
In the above-mentioned hybrid earth source heat pump monitoring system based on the health evaluating technology, described monitoring subsystem comprises some sensors, described sensor links to each other with communication apparatus, described communication apparatus links to each other with host computer by wired or wireless communication modes, is connected with data storage at host computer.
In the above-mentioned hybrid earth source heat pump monitoring system based on the health evaluating technology, described sensor comprise can detect ground pipe laying flow flow sensor, can detect the ground pipe laying import and export first temperature sensor of water temperature, can detect the underground temperature second temperature sensor, can detect the three-temperature sensor of outdoor temperature and can detect in the humidity sensor of outside humidity any one or multiple.
In the above-mentioned hybrid earth source heat pump monitoring system based on the health evaluating technology, described load prediction subsystem comprises the load prediction module, be connected with weather forecast input module and data storage in the load prediction module, described data storage links to each other with the health evaluating subsystem.
In the above-mentioned hybrid earth source heat pump monitoring system based on the health evaluating technology, described monitoring subsystem comprises that also can detect auxiliary Cooling and Heat Source accumulates the open-interval timing module in the unit interval, and described timing module is connected with data storage.
In the above-mentioned hybrid earth source heat pump monitoring system based on the health evaluating technology, described RACS respectively with source pump, the auxiliary Cooling and Heat Source switching mechanism of the ground pipe laying switching mechanism of pipe laying and auxiliary Cooling and Heat Source link to each other, described auxiliary Cooling and Heat Source comprise in cooling tower, solar facilities, ice cold-storage apparatus and the surface water equipment any one or multiple.
A kind of hybrid earth source heat pump method for supervising based on the health evaluating technology is characterized in that, is regularly gathered the every data of hybrid earth source heat pump and/or the every data of hybrid earth source heat pump working environment and is deposited in data storage by monitoring subsystem; Regularly extract the history that the monitoring subsystem in the data storage collects by the load prediction subsystem and detect data and carry out load prediction in conjunction with weather forecast information, deposit the load prediction data in above-mentioned data storage then; Carry out every assessment by the health evaluating subsystem real-time detection data that regularly the extraction monitoring subsystem collects from data storage and deposit health index in data storage then; The regular accesses data memory of RACS is also made corresponding control according to the load prediction data that the health index of health evaluating subsystem and load prediction subsystem generate to hybrid earth source heat pump.
In the above-mentioned hybrid earth source heat pump method for supervising based on the health evaluating technology, described load prediction subsystem draws the heat exchange amount of hybrid earth source heat pump on the same day: Q according to the data of monitoring subsystem collection
n=C ρ V (T
Ni-T
No);
Wherein, Q
nFor working as world source heat exchange amount; C ρ is the product of specific heat of water and density; T
NiBe ground source inflow temperature; T
NoBe ground source leaving water temperature; V
nBe ground source flow;
Predict the heat exchange amount of next workaday hybrid earth source heat pump then in conjunction with weather forecast information:
Wherein, Q
(n+1) fHeat exchange amount predicted value for the workaday earth source heat pump of the next one; Q
nFor working as world source heat exchange amount; Temp
(n+1) fIt is the representation temperature of weather forecast in second day; Temp
(n+1) fMean value for forecast maximum temperature on the same day and minimum temperature; C
wBe weather conditions correction factor on next working day, wherein C when raining heavyly
wBe not more than 0.75, C during moderate rain
wBe not more than 0.8, C during light rain
wBe not more than 0.85, the C during cloudy day
wBe not more than 0.9, C when cloudy
wBe not more than 0.95, C when fine
wBe 1.
In the above-mentioned hybrid earth source heat pump method for supervising based on the health evaluating technology, described health index full marks are 100 minutes, and the hybrid earth source heat pump of the more high representative of score value is more healthy, and the computing formula of health index is:
Wherein,
Be short-period fluctuation item, T
ObBe best outlet temperature, be 22-28 summer, and be 12-18 winter; T
OwBe the poorest outlet temperature, be 28-32 summer, and be 4-6 winter; T
NoBe current outlet temperature;
Above-mentioned C
t, C
q, C '
TsAnd C
fBe respectively the weight factor of short-period fluctuation item, load change item, long-term change item and auxiliary Cooling and Heat Source change item, above-mentioned C
t, C
q, C '
TsAnd C
fSum is 1, and 0.4≤C
t≤ 0.5,0.25≤C
q≤ 0.35,0.15≤C '
Ts≤ 0.25,0.05≤C
f≤ 0.15.
In the above-mentioned hybrid earth source heat pump method for supervising based on the health evaluating technology, described RACS is determined control strategy according to the designing requirement of hybrid earth source heat pump, and regulates the operation of hybrid earth source heat pump in real time according to health index and control strategy.
Compared with prior art, this is based on the hybrid earth source heat pump monitoring system of health evaluating technology and the advantage of method: can be by hybrid earth source heat pump is monitored and controlled, reasonable assessment is when the health status of front mixing earth-source hot-pump system, and according to the operation of the change dynamics Adjustment System of health status, make system can reach design parameter in all cases and with the most reliable mode operation, the result of use of assurance system, the automatization level of raising system reduces management labour intensity.Cold and hot balance under the assurance system long-time running condition; The assurance system satisfies economy under the short-term operation condition.
Description of drawings
Fig. 1 is structural representation provided by the invention.
Among the figure, monitoring subsystem 1, communication apparatus 10, flow sensor 11, first temperature sensor 12, second temperature sensor 12, three-temperature sensor 12, humidity sensor 13, load prediction subsystem 2, load prediction module 21, weather forecast input module 22, health evaluating subsystem 3, RACS 4, host computer 5, data storage 6, timing module 7, source pump A, ground pipe laying B, the ground pipe laying switching B1 of mechanism, auxiliary Cooling and Heat Source 9, the auxiliary Cooling and Heat Source switching C0 of mechanism, cooling tower C1, solar facilities C2, ice cold-storage apparatus C3, surface water equipment C4.
The specific embodiment
As shown in Figure 1, this hybrid earth source heat pump monitoring system based on the health evaluating technology comprises the monitoring subsystem 1 that can monitor hybrid earth source heat pump working condition and/or hybrid earth source heat pump working environment, the real-time Monitoring Data of monitoring subsystem 1 and/or data of weather forecast can be obtained and according to the load prediction subsystem 2 of the hybrid earth source heat pump load of above-mentioned data prediction, thereby the health evaluating subsystem 3 that the load prediction data of the historical Monitoring Data of monitoring subsystem 1 and load prediction subsystem 2 are assessed the work health status of hybrid earth source heat pump can be obtained.Health evaluating subsystem 3 with can control hybrid earth source heat pump according to the health index of health evaluating subsystem 3 and adjust the RACS 4 of duty in real time and link to each other.That is, the present invention is become by four groups of subsystems, is respectively monitoring subsystem 1, health evaluating subsystem 3, load prediction subsystem 2 and RACS 4.Hybrid earth source heat pump working environment comprises underground temperature, outdoor temperature, humidity etc.
In order to guarantee the normal operation of ground heat exchanger, the temperature of underground needs in the reasonable scope, especially the pipe laying central area, must in time gather the temperature of each measuring point, flow obtains the temperature field of soil, imports and exports the relevant parameter of water temperature and auxiliary Cooling and Heat Source.Monitoring subsystem 1 comprises some sensors, and described sensor links to each other with communication apparatus 10, and described communication apparatus 10 links to each other with host computer 5 by wired or wireless communication modes, is connected with data storage 6 at host computer 5.Sensor comprise can detect ground pipe laying flow flow sensor 11, can detect the ground pipe laying import and export first temperature sensor 12 of water temperature, can detect the underground temperature second temperature sensor 12, can detect the three-temperature sensor 12 of outdoor temperature and can detect in the humidity sensor 13 of outside humidity any one or multiple.
Because there is the heat history effect in geothermal heat pump air-conditioner, the long-time continuous operation can cause operational efficiency to descend, and adopts auxiliary Cooling and Heat Source then can improve the overall operation efficiency of system greatly in good time.Therefore must rationally arrange running time, be optimized control according to the height of loading.This just needs system accurately to predict load by various data, in order to regulate earth source heat pump better.Load prediction subsystem 2 comprises load prediction module 21, is connected with weather forecast input module 22 and data storage 6 in load prediction module 21, and described data storage 6 links to each other with health evaluating subsystem 3.Monitoring subsystem 1 comprises that also can detect auxiliary Cooling and Heat Source 9 accumulates open-interval timing module 7 in the unit interval, and described timing module 7 is connected with data storage 6 by communication apparatus 10.RACS 4 respectively with source pump A, the B1 of ground pipe laying switching mechanism of pipe laying B and the auxiliary Cooling and Heat Source switching C0 of mechanism of auxiliary Cooling and Heat Source 9 link to each other, described auxiliary Cooling and Heat Source 9 comprise among cooling tower C1, solar facilities C2, ice cold-storage apparatus C3 and the surface water equipment C4 any one or multiple.
Hybrid earth source heat pump method for supervising based on the health evaluating technology: regularly gather the every data of hybrid earth source heat pump and/or the every data of hybrid earth source heat pump working environment and deposit data storage 6 in by monitoring subsystem 1; The history that is collected by the load prediction subsystem 2 regular monitoring subsystems 1 that extract in the data storage 6 detects data and carries out load prediction in conjunction with weather forecast information, then the load prediction data is deposited in above-mentioned data storage 6; Carry out every assessment by the health evaluating subsystem 3 real-time detection data that regularly extraction monitoring subsystem 1 collects from data storage 6 and then health index is deposited in data storage 6; RACS 4 regular accesses data memory 6 are also made corresponding control according to the load prediction data that the health index of health evaluating subsystem 3 and load prediction subsystem 2 generate to hybrid earth source heat pump.
Load prediction subsystem 2 draws the heat exchange amount of hybrid earth source heat pump on the same day: Q according to the data of monitoring subsystem 1 collection
n=C ρ V (T
Ni-T
No);
Wherein, Q
nFor working as world source heat exchange amount; C ρ is the product of specific heat of water and density; T
NiBe ground source inflow temperature; T
NoBe ground source leaving water temperature; V
nBe ground source flow;
Predict the heat exchange amount of next workaday hybrid earth source heat pump then in conjunction with weather forecast information:
Wherein, Q
(n+1) fHeat exchange amount predicted value for the workaday earth source heat pump of the next one; Q
nFor working as world source heat exchange amount; Temp
(n+1) fIt is the representation temperature of weather forecast in second day; Temp
(n+1) fMean value for forecast maximum temperature on the same day and minimum temperature; C
wBe weather conditions correction factor on next working day, wherein C when raining heavyly
wBe not more than 0.75, C during moderate rain
wBe not more than 0.8, C during light rain
wBe not more than 0.85, the C during cloudy day
wBe not more than 0.9, C when cloudy
wBe not more than 0.95, C when fine
wBe 1.In the present embodiment, C
wBe heavy rain 0.75, moderate rain 0.8, light rain 0.85, cloudy day 0.9, cloudy 0.95, fine 1.
Health evaluating subsystem 3 is cores of the present invention.Control for hybrid earth-source hot-pump system, progressive control dynamically, to reach the balance of underground temperature field, must come the health status of source heat pump system definitely by real-time health evaluating, and then take the operation normally and efficiently of control measure safeguards system timely and effectively.Present embodiment is introduced the operation conditions that health index characterizes earth-source hot-pump system, full marks 100 minutes, and the more high representative system of score value is more healthy.
The computing formula of health index is:
Wherein,
Be short-period fluctuation item, T
ObBe best outlet temperature, be 22-28 summer, and be 12-18 winter; T
OwBe the poorest outlet temperature, be 28-32 summer, and be 4-6 winter; T
NoBe current outlet temperature;
Be long-term change item, T '
NsBe the soil moisture of the same period last one year, T
NsBe the current soil moisture, T
NsbBe the best soil temperature, be 14-16 summer, and be 24-26 winter;
Above-mentioned C
t, C
q, C '
TsAnd C
fBe respectively the weight factor of short-period fluctuation item, load change item, long-term change item and auxiliary Cooling and Heat Source change item, above-mentioned C
t, C
q, C '
TsAnd C
fSum is 1, and 0.4≤C
t≤ 0.5,0.25≤C
q≤ 0.35,0.15≤C '
Ts≤ 0.25,0.05≤C
f≤ 0.15.In the present embodiment, C
t, C
q, C '
TsAnd C
fBe respectively 0.4,0.3,0.2 and 0.1.More particularly, the health index of earth-source hot-pump system comprises four indexs, wherein:
First is the short-period fluctuation item, estimates the health condition of earth-source hot-pump system according to the short-period fluctuation of source leaving water temperature.T
ObBe best outlet temperature, be 26 general summer, and be 15 winter; T
OwBe the poorest outlet temperature, be 31 general summer, and be 5 winter; T
NoBe current outlet temperature;
Second is the load change item, dopes the load change situation that next workaday load comes characterization system according to the load prediction subsystem.Q
n' be the work at present daily load, Q '
(n+1) fBe next load prediction on working day value;
The 3rd is long-term change item, and the long-term change conditions of soil moisture field is estimated the buried tube heat exchanger health condition under the base area; T '
NsBe the soil moisture of the same period last one year, T
NsBe the current soil moisture; T
NsbBe the best soil temperature, be 15 general summer, and be 25 winter;
The 4th is auxiliary Cooling and Heat Source change item, and relevant service time with auxiliary Cooling and Heat Source, auxiliary Cooling and Heat Source is more long service time, and this value is more big, and auxiliary Cooling and Heat Source is more few service time, and then the value of this item is more little.
RACS 4 is determined control strategy according to the designing requirement of hybrid earth source heat pump, and regulates the operation of hybrid earth source heat pump in real time according to health index and control strategy.The hardware of RACS 4 is formed and is mainly comprised: host computer, Programmable Logic Controller, and controlled plants such as magnetic valve, water pump.Send instruction and by field controller various kinds of equipment is controlled in real time by industrial computer.Usually, local source heat pump health index is low then enables auxiliary cold (heat) source, and health index is more low, and the refrigeration that auxiliary Cooling and Heat Source is born (heating) share is more big.In cooling condition, the low auxiliary cold source of then enabling of health index is as cooling tower, ice cold-storage or air-cooled heat pump etc.; In heating condition, health index is low then enables auxiliary thermal source, as solar energy, boiler or air-cooled heat pump etc.
Workflow is as follows:
1, sets C
t, C
q, C '
Ts, C
f, T
Ow, T
Ob, C ρ, T
NsbAnd C
w
2, read ground source leaving water temperature T from data storage 6
No, ground source inflow temperature T
Ni, ground source flow V
n, Q
(n-1), Q
n, Temp
(n+1) f, T '
Ns, T
Ns, calculate Q
n=C ρ V (T
Ni-T
No);
3, the load of prediction n+1 day
4, calculate health index:
Adding the tower hybrid system of cooling with earth source heat pump below is that example is introduced control strategy, and the Cooling and Heat Source of this mixing earth-source hot-pump system is mainly underground heat exchanger, and cooling tower is auxiliary cold source.
Summer, the method for operation mainly contained during refrigerating operaton:
(1) pipe laying is as independent cooling source;
(2) as the low-temperature receiver of unit operation, buried tube heat exchanger is connected with cooling tower simultaneously for pipe laying and cooling tower;
(3) shut down or partly open, this part control is conventional, does not do and gives unnecessary details;
Operational mode 1 is the main operational mode of this system, and this pattern is most economical energy-conservation, is fit to the low operating mode of load in summer.
Operational mode 2 is a kind of heavy-duty service patterns of this system, and this pattern is both economical energy-conservation, the higher operating mode of loading suitable summer.Because it is bigger that the refrigerating efficiency of cooling tower is influenced by outdoor environment temperature, outdoor temperature is more low, and the cooling tower operational efficiency is more high, so the optimum operation time is followed successively by early morning: 0 o'clock to 8 o'clock, night: 16 o'clock to 24 o'clock, in the daytime: 8 o'clock to 16 o'clock;
Operational mode 3 is a kind of underrun patterns of this system, shuts down or part is shut down underground temperature field is recovered, for the efficient operation of unit creates conditions.
Three opening time sections of definition cooling tower are respectively t
1: 16 o'clock to 24 o'clock, t
2: 24 to some next day 8, t
3: 8 o'clock to 16 o'clock, unit was minute.
Concrete control strategy is:
As 100 〉=H
N+1＞50 o'clock, t
1=9.6* (100-H
N+1), t
2=0, t
3=0;
As 50 〉=H
N+1＞20 o'clock, t
1=480, t
2=16 (50-H
N+1), t
3=0;
As 20 〉=H
N+1The time, t
1=480, t
2=480, t
3=24 (20-H
N+1)
The present invention can guarantee the cold and hot balance under system's long-time running condition: " earth-source hot-pump system engineering legislation GB50366-2005 " regulation: " pipe laying heat-exchange system design should carry out annual dynamic load and calculate, the minimum of computation cycle is preferably 1 year.In the computing cycle, the Total amount of heat release of earth-source hot-pump system should balance each other with its total caloric receptivity." southern area, the refrigeration duty in summer is much larger than the thermic load in winter, and namely earth source heat pump surpasses the heat of drawing to the heat of underground input, and heat can cause the soil moisture to raise year by year in underground accumulation, causes the heat exchanger heat exchange efficiency to reduce.When the soil temperature rise reaches a threshold value, even can cause earth source heat pump ineffective.Therefore, must the assurance system cold and hot balance under the long-time running condition.Native system is mainly regulated the opening time of earth source heat pump by the variation of monitoring underground temperature field.
The present invention can guarantee that system is satisfying economy under the short-term operation condition: under the short-term operation condition, also can fluctuate in the temperature field of earth source heat pump buried tube heat exchanger, thereby influence the performance of system.Under the lower situation of load intensity, the Energy Efficiency Ratio of earth source heat pump is bigger, generally adopts earth source heat pump isolated operation less expensive.When load is big, long-play will cause the underground temperature field temperature to raise, and cause the geothermal heat pump air-conditioner performance to descend gradually, finally lose exchange capability of heat, so need the variation of monitoring underground temperature field in real time, adopt earth source heat pump and cooling tower joint refrigeration in case of necessity.Native system is mainly regulated the opening time of earth source heat pump by the variation of monitoring ground source inflow temperature.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used monitoring subsystem 1 morely, communication apparatus 10, flow sensor 11, first temperature sensor 12, second temperature sensor 12, three-temperature sensor 12, humidity sensor 13, load prediction subsystem 2, load prediction module 21, weather forecast input module 22, health evaluating subsystem 3, RACS 4, host computer 5, data storage 6, timing module 7, source pump A, ground pipe laying B, the ground pipe laying switching B1 of mechanism, auxiliary Cooling and Heat Source 9, the auxiliary Cooling and Heat Source switching C0 of mechanism, cooling tower C1, solar facilities C2, ice cold-storage apparatus C3, terms such as surface water equipment C4, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (7)
1. hybrid earth source heat pump monitoring system based on the health evaluating technology, it is characterized in that, this monitoring system comprises the monitoring subsystem (1) that can monitor hybrid earth source heat pump working condition and/or hybrid earth source heat pump working environment, can obtain the real-time Monitoring Data of monitoring subsystem (1) and/or the load prediction subsystem (2) of data of weather forecast and the hybrid earth source heat pump load of the above-mentioned data prediction of foundation, can obtain the historical Monitoring Data of monitoring subsystem (1) and load prediction subsystem (2) thus load prediction data health evaluating subsystem (3) that the work health status of hybrid earth source heat pump is assessed, described health evaluating subsystem (3) with can control hybrid earth source heat pump according to the health index of health evaluating subsystem (3) and adjust the RACS of duty (4) in real time and link to each other, described monitoring subsystem (1) comprises some sensors, described sensor links to each other with communication apparatus (10), described communication apparatus (10) links to each other with host computer (5) by wired or wireless communication modes, be connected with data storage (6) at host computer (5), described load prediction subsystem (2) comprises load prediction module (21), be connected with weather forecast input module (22) and data storage (6) in load prediction module (21), described data storage (6) links to each other with health evaluating subsystem (3), described monitoring subsystem (1) comprises that also can detect auxiliary Cooling and Heat Source (9) accumulates open-interval timing module (7) in the unit interval, and described timing module (7) is connected with data storage (6).
2. the hybrid earth source heat pump monitoring system based on the health evaluating technology according to claim 1, it is characterized in that, described sensor comprise can detect ground pipe laying flow flow sensor (11), can detect the ground pipe laying import and export first temperature sensor (12) of water temperature, can detect the underground temperature second temperature sensor (12), can detect the three-temperature sensor (12) of outdoor temperature and can detect in the humidity sensor (13) of outside humidity any one or multiple.
3. the hybrid earth source heat pump monitoring system based on the health evaluating technology according to claim 2, it is characterized in that, described RACS (4) respectively with source pump (A), the ground pipe laying switching mechanism (B1) of pipe laying (B) and the auxiliary Cooling and Heat Source switching mechanism (C0) of auxiliary Cooling and Heat Source (9) link to each other, described auxiliary Cooling and Heat Source (9) comprise in cooling tower (C1), solar facilities (C2), ice cold-storage apparatus (C3) and the surface water equipment (C4) any one or multiple.
4. hybrid earth source heat pump method for supervising based on the health evaluating technology, it is characterized in that, regularly gather the every data of hybrid earth source heat pump and/or the every data of hybrid earth source heat pump working environment and deposit data storage (6) in by monitoring subsystem (1); Regularly extract the history that the monitoring subsystem (1) in the data storage (6) collects by load prediction subsystem (2) and detect data and carry out load prediction in conjunction with weather forecast information, then the load prediction data are deposited in above-mentioned data storage (6); Carry out every assessment by health evaluating subsystem (3) the real-time detection data that regularly extraction monitoring subsystem (1) collects from data storage (6) and then health index is deposited in data storage (6); RACS (4) is accesses data memory (6) and hybrid earth source heat pump is made corresponding control according to the load prediction data that health index and the load prediction subsystem (2) of health evaluating subsystem (3) generates regularly.
5. the hybrid earth source heat pump method for supervising based on the health evaluating technology according to claim 4 is characterized in that, described load prediction subsystem (2) draws the heat exchange amount of hybrid earth source heat pump on the same day: Q according to the data of monitoring subsystem (1) collection
n=C ρ V (T
Ni-T
No);
Wherein, Q
nFor working as world source heat exchange amount; C ρ is the product of specific heat of water and density; T
NiBe ground source inflow temperature; T
NoBe ground source leaving water temperature; V
nBe ground source flow;
Predict the heat exchange amount of next workaday hybrid earth source heat pump then in conjunction with weather forecast information:
Wherein, Q
(n+1) fHeat exchange amount predicted value for the workaday earth source heat pump of the next one; Q
nFor working as world source heat exchange amount; Temp
(n+1) fIt is the representation temperature of weather forecast in second day; Temp
(n+1) fMean value for forecast maximum temperature on the same day and minimum temperature; C
wBe weather conditions correction factor on next working day, wherein C when raining heavyly
wBe not more than 0.75, C during moderate rain
wBe not more than 0.8, C during light rain
wBe not more than 0.85, the C during cloudy day
wBe not more than 0.9, C when cloudy
wBe not more than 0.95, C when fine
wBe 1.
6. the hybrid earth source heat pump method for supervising based on the health evaluating technology according to claim 5 is characterized in that, described health index full marks are that 100 minutes and the hybrid earth source heat pump of the more high representative of score value are more healthy, and the computing formula of health index is:
Wherein,
Be short-period fluctuation item, T
ObBe best outlet temperature, be 22-28 summer, and be 12-18 winter; T
OwBe the poorest outlet temperature, be 28-32 summer, and be 4-6 winter; T
NoBe current outlet temperature;
Be load change item, Q
n' be the work at present daily load, Q '
(n+1) fBe next load prediction on working day value;
Above-mentioned C
t, C
q, C '
TsAnd C
fBe respectively the weight factor of short-period fluctuation item, load change item, long-term change item and auxiliary Cooling and Heat Source change item, above-mentioned C
t, C
q, C '
TsAnd C
fSum is 1, and 0.4≤C
t≤ 0.5,0.25≤C
q≤ 0.35,0.15≤C '
Ts≤ 0.25,0.05≤C
f≤ 0.15.
7. the hybrid earth source heat pump method for supervising based on the health evaluating technology according to claim 6, it is characterized in that, described RACS (4) is determined control strategy according to the designing requirement of hybrid earth source heat pump, and regulates the operation of hybrid earth source heat pump in real time according to health index and control strategy.
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| CN104374427B (en) * | 2014-11-10 | 2016-10-05 | 桂林理工大学 | The soil body hot moisture migration effect test system and method in a kind of earth source heat pump operation |
| CN104318124B (en) * | 2014-11-11 | 2017-09-22 | 北京嘉华新源科技有限公司 | A kind of subterranean heat exchanger of earth source heat pump exchange capability of heat computational methods |
| CN105045964B (en) * | 2015-06-25 | 2019-03-01 | 中国铁路总公司 | The intelligent Application for multiplying 2 platforms for 2 cuts machine method and system |
| WO2019046580A1 (en) | 2017-08-30 | 2019-03-07 | Delos Living Llc | Systems, methods and articles for assessing and/or improving health and well-being |
| CN108154258B (en) * | 2017-11-27 | 2021-11-05 | 国网北京市电力公司 | Method and device for predicting load of air source heat pump, storage medium and processor |
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