CN101893350A - Heat supply or cold supply method for ground source heat pump storing energy seasonally and device thereof - Google Patents
Heat supply or cold supply method for ground source heat pump storing energy seasonally and device thereof Download PDFInfo
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Abstract
The invention discloses a heat supply or cold supply method for a ground source heat pump storing energy seasonally and an implementation device thereof. The implementation device comprises a ground source heat pump system which mainly comprises a heat pump machine set, indoor air conditioning equipment, a first ground buried pipe heat exchanging device and a second ground buried pipe heat exchanging device; the implementation device also comprises an energy exchanging unit which is connected with the first ground buried pipe heat exchanging device and the second ground buried pipe heat exchanging device through an electrically operated valve and a circulating pump, and an energy circulating structure is formed by the energy exchanging unit, the first ground buried pipe heat exchanging device and the second ground buried pipe heat exchanging device through a switch electrically operated valve and a start-stop circulating pump. The energy exchanging device comprises a water-in-the-sun heat exchanging device, a hardstand heat exchanging device and a water landscape heat exchanging device. In the invention, the purpose of using renewable energy to conduct indoor heat supply or indoor cold supply in buildings can be realized with low cost, and the method can be widely applied to expand in in south and north land areas across China and has the characteristics of high efficiency and safety. The device has simple structure, strong feasibility, low cost and easy popularization.
Description
Technical field
The present invention relates to solar energy and store technical field and earth source heat pump applied technical field.Specifically be a kind of can utilize the sun near-earth phase and far the phase should season temperature and building surface hold the poor of temperature and ground temperature, rely on the heating of accumulation of energy in season earth source heat pump or the cooling method and the device thereof of low-cost low expense thermal-arrest of building thermal technology condition design innovation and heat exchange.
Background technology
At present, countries in the world are all tapping a new source of energy, and seek to solve the problem of non-renewable energy resources with exhaustion.China proposes the Eleventh Five-Year Plan period, and the GDP energy consumption will reduce by 20% target, National Ministry of Finance, Ministry of Construction dispatch " about the implementation guideline that advances regenerative resource to use under construction " and " regenerative resource Application in Building special fund management Tentative Measures ", spell out the Eleventh Five-Year Plan period, it is more than 25% that regenerative resource application area accounts for the new building area ratio, to the year two thousand twenty, it is more than 50% that regenerative resource application area accounts for the new building area ratio, and heliotechnics and ground source heat pump technology are listed in regenerative resource Application in Building main contents.
When source heat pump system is given building heating routinely from underground heat absorption, during refrigeration to underground heat release.Puzzled is the load unbalanced objective present situation of Building Cooling and " earth-source hot-pump system engineering legislation " GB50366-2005 consider to require caloric receptivity and the necessary balance of heat release amount for environmental protection and security of system operative norm.
China's building load characteristics vast in territory are: the most southern summer, refrigeration duty was big, did not have thermic load (full cold mould) winter; Central-South, west and south refrigeration duty in summer is big, thermic load in winter little (cold big heat is small-sized); The central and east, winter in summer, cooling and heating load maintained an equal level; The Midwest, the central and north, the northwestward, northeast refrigeration duty in summer is little, thermic load in winter big (cold little heat is large-scale); There is not refrigeration duty the most northern summer, thermic load in winter very big (full-thermal type).The load unbalanced rate of the regional Building Cooling in the whole nation accounts for more than 90%, adds other functional burdening stack back cooling and heating load balanced type building still less.Conventional earth source heat pump is for " full-thermal type ", and what " full cold mould " loaded can not use; To " cold big heat is small-sized ", " cold little heat is large-scale " load can only be high the cost poor efficiency use that (" cold big heat is small-sized " heat extraction needs cooling tower; " cold little heat is large-scale " concurrent heating need be arranged carbon heat sources); Inhaling that the heat release amount is unbalanced can not durable applications, cause earth-source hot-pump system year by year folk prescription accumulate to temperature, system effectiveness continues to reduce, and finally causes losing efficacy.
Summary of the invention
In order to solve suction/heat release amount equilibrium problem in the prior art, the present invention provides a kind of earth source heat pump heating or cooling method and device thereof of accumulation of energy in season.By setting up switchable energy exchange unit, realize air water heat exchange, the heat exchange of building cladding panel, hardstand heat exchange, water landscape heat exchange, store sun near-earth phase and the energy of phase far away, by the new forms of energy of ground pipe laying heat-exchanger rig storage becoming available heating or cooling.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of earth source heat pump heating or cooling method of accumulation of energy in season based on existing earth source heat pump heating or cold supply system, comprise following implementation step:
The first step according to the energy difference of implementing regional earth source heat pump heating or cooling, calculates the difference of the caloric receptivity A and the heat release amount B in this zone, and the imbalance values of source energy is with drawing this area as calculated | A-B|; Second step, be the above-mentioned imbalance values of balance | A-B|, be connected to the energy exchange unit on the first ground pipe laying heat-exchanger rig with existing earth source heat pump heating or cold supply system, the cold/thermic load ability value of this energy exchange unit is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|; The 3rd step is as the caloric receptivity A of this area during greater than heat release amount B, in the cooling phase, with this energy exchange unit and the first ground pipe laying heat-exchanger rig connection accumulation of heat; At heating period, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected; When this area carry heat A less than heat release amount B the time, at heating period, cold-storage is connected in this energy exchange unit and the first ground pipe laying heat-exchanger rig; In the cooling phase, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected; The 4th step, realize that through above-mentioned steps earth source heat pump heats or the energy balance of cooling, solve the unbalance problem of source, ground, this area energy.
Second and third step can also be following steps in the said method: in second step, be the above-mentioned imbalance values of balance | A-B|, with the separately supply of cold-peace heat, set up second ground pipe laying heat-exchanger rig and the energy exchange unit in existing earth source heat pump heating or cold supply system; This first ground pipe laying heat-exchanger rig is set is used for independent heating, this second ground pipe laying heat-exchanger rig is used for independent cooling, and described first, second ground pipe laying heat-exchanger rig is connected with described energy exchange unit; The 3rd step, during the phase disconnected the second ground pipe laying heat-exchanger rig and energy exchange unit according to the seasonal variations cooling, then the second ground pipe laying heat-exchanger rig was connected cooling with source pump; Simultaneously the first ground pipe laying heat-exchanger rig and source pump are disconnected, then the first ground pipe laying heat-exchanger rig is connected accumulation of heat with the energy exchange unit; During according to the seasonal variations heating period, the first ground pipe laying heat-exchanger rig and energy exchange unit are disconnected, then the first ground pipe laying heat-exchanger rig is connected heating with source pump; Simultaneously the second ground pipe laying heat-exchanger rig and source pump are disconnected, then the second ground pipe laying heat-exchanger rig is connected cold-storage with the energy exchange unit.
Described energy exchange unit comprises the air water heat-exchanger rig; Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, be connected to the air water heat-exchanger rig, cold/thermic load the ability value of this air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises the hardstand heat-exchanger rig; Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the hardstand heat-exchanger rig, cold/thermic load ability value the sum of this hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises the water landscape heat-exchanger rig; Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the water landscape heat-exchanger rig, cold/thermic load ability value the sum of this water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat transmission equipment is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises the exterior wall cladding heat-exchanger rig; Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the exterior wall cladding heat-exchanger rig, cold/thermic load ability value the sum of this exterior wall cladding heat-exchanger rig and/or water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
The earth source heat pump heating of described a kind of accumulation of energy in season or the implement device of cooling method comprise earth-source hot-pump system, and earth-source hot-pump system mainly comprises: source pump, indoor air conditioner and first and second ground pipe laying heat-exchanger rig; This implement device also comprises the energy exchange unit, described energy exchange unit is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump energy exchange unit and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
Described energy exchange unit comprises the air water heat-exchanger rig, described air water heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
Described energy exchange unit also comprises the hardstand heat-exchanger rig, described hardstand heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described hardstand heat-exchanger rig and air water heat-exchanger rig form an energy circulation structure by switch motor-driven valve and start and stop circulating pump with hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig for being connected in parallel.
Described energy exchange unit also comprises water landscape heat-exchanger rig and external wall heat-exchanger rig, described water landscape heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve with the external wall heat-exchanger rig, described water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig and air water heat-exchanger rig are connected in parallel each other, by switch motor-driven valve and start and stop circulating pump water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig are formed an energy circulation structure.
Advantage of the present invention is:
1, the present invention realizes that regenerative resource is building indoor heating or cooling with can hanging down expense, and this method can be widely used in north and south expansion in the zone, the whole of China territory; And characteristics with highly effective and safe.
2, the present invention utilizes regenerative resource with can hanging down expense, ensures that sleet in winter sky, important transport hub is smooth and easy.
3, the present invention is simple in structure, and exploitativeness is strong, and is with low cost, is convenient to promote.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an overall structure schematic diagram of the present invention.
The specific embodiment
A kind of earth source heat pump heating or cooling method of accumulation of energy in season, based on existing earth source heat pump heating or cold supply system, comprise following implementation step: the first step, according to the energy difference of implementing regional earth source heat pump heating or cooling, calculate the difference of the caloric receptivity A and the heat release amount B in this zone, the imbalance values of source energy is with drawing this area as calculated | A-B|; Second step, be the above-mentioned imbalance values of balance | A-B|, be connected to the energy exchange unit on first ground pipe laying heat-exchanger rig one end with existing earth source heat pump heating or cold supply system, cold/thermic load the ability value of this energy exchange unit is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|; The 3rd step is as the caloric receptivity A of this area during greater than heat release amount B, in the cooling phase, with this energy exchange unit and the first ground pipe laying heat-exchanger rig connection accumulation of heat; At heating period, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected; When this area carry heat A less than heat release amount B the time, at heating period, cold-storage is connected in this energy exchange unit and the first ground pipe laying heat-exchanger rig; In the cooling phase, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected; The 4th step, realize that through above-mentioned steps earth source heat pump heats or the energy balance of cooling, solve the unbalance problem of source, ground, this area energy.
Second and third step can also be following steps in the said method: in second step, be the above-mentioned imbalance values of balance | A-B|, with the separately supply of cold-peace heat, set up second ground pipe laying heat-exchanger rig and the energy exchange unit in existing earth source heat pump heating or cold supply system; This first ground pipe laying heat-exchanger rig is set is used for independent heating, this second ground pipe laying heat-exchanger rig is used for independent cooling, and described first, second ground pipe laying heat-exchanger rig is connected with described energy exchange unit; The 3rd step, during the phase disconnected the second ground pipe laying heat-exchanger rig and energy exchange unit according to the seasonal variations cooling, then the second ground pipe laying heat-exchanger rig was connected cooling with source pump; Simultaneously the first ground pipe laying heat-exchanger rig and source pump are disconnected, then the first ground pipe laying heat-exchanger rig is connected accumulation of heat with the energy exchange unit; During according to the seasonal variations heating period, the first ground pipe laying heat-exchanger rig and energy exchange unit are disconnected, then the first ground pipe laying heat-exchanger rig is connected heating with source pump; Simultaneously the second ground pipe laying heat-exchanger rig and source pump are disconnected, then the second ground pipe laying heat-exchanger rig is connected cold-storage with the energy exchange unit.
Described energy exchange unit comprises air water heat-exchanger rig (routine dry in the air water tower); Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, be connected to the air water heat-exchanger rig, cold/thermic load the ability value of this air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises hardstand heat-exchanger rig (being that the following depths below 1 meter of hardstand is buried heat exchanger tube underground); Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the hardstand heat-exchanger rig, cold/thermic load ability value the sum of this hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises water landscape heat-exchanger rig (being river, the face of land, water landscape lake, music fountain etc.); Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the water landscape heat-exchanger rig, cold/thermic load ability value the sum of this water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat transmission equipment is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
Described energy exchange unit also comprises exterior wall cladding heat-exchanger rig (being that external wall link plate inboard is provided with heat exchanger tube); Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the exterior wall cladding heat-exchanger rig, cold/thermic load ability value the sum of this exterior wall cladding heat-exchanger rig and/or water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
A kind of earth source heat pump heating of accumulation of energy in season or the implement device of cooling method comprise earth-source hot-pump system, and earth-source hot-pump system mainly comprises: source pump, indoor air conditioner and first and second ground pipe laying heat-exchanger rig; This implement device also comprises the energy exchange unit, described energy exchange unit is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump energy exchange unit and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
Described energy exchange unit comprises the air water heat-exchanger rig, described air water heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
Described energy exchange unit also comprises the hardstand heat-exchanger rig, described hardstand heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described hardstand heat-exchanger rig and air water heat-exchanger rig form an energy circulation structure by switch motor-driven valve and start and stop circulating pump with hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig for being connected in parallel.
Described energy exchange unit also comprises water landscape heat-exchanger rig and external wall heat-exchanger rig, described water landscape heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve with the external wall heat-exchanger rig, described water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig and air water heat-exchanger rig are connected in parallel each other, by switch motor-driven valve and start and stop circulating pump water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig are formed an energy circulation structure.
As shown in Figure 1, the implement device of accumulation of energy in season earth source heat pump heating or cooling method, mainly comprise the source pump of forming source heat pump system routinely, indoor air conditioner, the pipe laying heat-exchanger rig add described energy-storage system and comprise the air water heat-exchanger rig.Described air water heat-exchanger rig is connected with ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, forms an energy circulation by switching motor-driven valve switch and start and stop circulating pump and stores structure.Described energy-storage system also comprises the hardstand heat-exchanger rig, described hardstand heat-exchanger rig is connected with ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described hardstand heat-exchanger rig and air water heat-exchanger rig form an energy circulation by switching motor-driven valve switch and start and stop circulating pump and store structure for being connected in parallel.Described energy-storage system also comprises the water landscape heat-exchanger rig, described water landscape heat-exchanger rig is connected with ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described water landscape heat-exchanger rig, hardstand heat-exchanger rig and air water heat-exchanger rig are connected in parallel each other, form an energy circulation by switching motor-driven valve switch and circulating pump and store structure.Described earth-source hot-pump system also comprises the external wall heat-exchanger rig, described external wall heat-exchanger rig is connected with ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described external wall heat-exchanger rig, water landscape heat-exchanger rig, hardstand heat-exchanger rig and air water heat-exchanger rig are connected in parallel each other, form an energy circulation accumulation of energy structure by switching motor-driven valve switch and circulating pump start and stop.
The hot unbalance amount different mining of earth source heat pump according to regions of the world is also different with method.Heat absorption from ground pipe laying heat-exchanger rig [GB50366-2005 (2009 editions)] when source pump is given the indoor air conditioner heat supply; When source pump is given the indoor air conditioner cooling in ground heat exchanger heat release; If caloric receptivity numerical value is A, the heat release numerical quantity is B, and promptly pipe laying heat-exchanger rig imbalance values is | A-B|.
Specifically comprise following 4 types:
(1) winter, thermic load was big, refrigeration duty in summer little (the unbalance type of accumulation of heat).Winter, the Building Heat load was big, and earth-source hot-pump system recepts the caloric from soil greater than the heat that is released in soil summer through ground pipe laying heat-exchanger rig, and promptly imbalance values is | A-B|.It is little to build refrigeration duty summer, earth-source hot-pump system is little through ground pipe laying heat-exchanger rig heat exhaust in soil, set up switchable energy exchange unit and ensure that earth source heat pump heats or the operation of cooling, when summer operation energy exchange unit, realize this regional soil accumulation of heat by ground pipe laying heat-exchanger rig, amount of stored heat is | A-B|, so that give building heat supplying during winter.Described energy exchange unit comprises: air water heat-exchanger rig, hardstand heat-exchanger rig, water landscape heat-exchanger rig, building cladding panel heat-exchanger rig.
(2) summer, refrigeration duty was big, thermic load in winter little (the unbalance type of cold-storage).It is big to build refrigeration duty summer, and the heat release amount is greater than recepting the caloric in soil winter in soil through ground pipe laying heat-exchanger rig for earth-source hot-pump system, and promptly unbalance amount is | A-B|.Winter, the Building Heat load was little, earth-source hot-pump system recepts the caloric little from soil through ground pipe laying heat-exchanger rig, set up switchable energy exchange unit and ensure that earth source heat pump heats or the operation of cooling, when winter operation energy exchange unit, realize this regional soil cold-storage by ground pipe laying heat-exchanger rig, cold storage capacity is | A-B|, so that give the building cooling during summer.
(3) thermic load in winter is only arranged, do not have refrigeration duty in summer (complete hot unbalance type).Winter, building only had thermic load, and earth-source hot-pump system recepts the caloric from soil through ground pipe laying heat-exchanger rig, and promptly unbalance amount is A.There is not refrigeration duty summer, set up switchable energy exchange unit and ensure that earth source heat pump heats or the operation of cooling,, realize this regional soil accumulation of heat by ground pipe laying heat-exchanger rig when summer operation energy exchange unit, amount of stored heat is A, so that give building heat supplying during winter.
(4) refrigeration duty in summer is only arranged, do not have thermic load in winter (complete cold unbalance type).Summer, building only had refrigeration duty, and earth-source hot-pump system is through ground pipe laying heat-exchanger rig heat release amount in soil, and promptly unbalance amount is B.There is not thermic load winter, set up switchable energy exchange unit and ensure that earth source heat pump heats or the operation of cooling,, realize this regional soil cold-storage by ground pipe laying heat-exchanger rig when winter operation energy exchange unit, cold storage capacity is B, so that give the building cooling during summer.
Further implementation step is as follows:
The first step, in the earth source heat pump heating and cooling system, the energy unbalance amount of known cooling in back and heating is as calculated | A-B|; When earth-source hot-pump system is complete cold unbalance type and complete hot unbalance type, ground pipe laying heat-exchanger rig is connected independent operating with source pump, ground pipe laying heat-exchanger rig is connected independent operating with the energy exchange unit;
Second step, when earth-source hot-pump system cooling or heating demand hour, earth-source hot-pump system is switched to two independent operating systems.
1) when winter thermic load little and when summer, refrigeration duty was big, when earth-source hot-pump system uses the first ground pipe laying heat-exchanger rig to utilize the REGIONAL GEOTHERMAL heating in the winter time, summer unbalance ground pipe laying heat-exchanger rig be connected with the hardstand heat-exchanger rig and open operation, want the ground pipe laying heat-exchanger rig REGIONAL GEOTHERMAL of cooling to reduce as far as possible after will changing according to the season.
Switched to the hardstand heat-exchanger rig with ground pipe laying heat-exchanger rig and open operation winter, want the ground pipe laying heat-exchanger rig REGIONAL GEOTHERMAL of cooling to reduce as far as possible after will changing according to the season when not having thermic load winter.
2) when refrigeration duty when little winter, thermic load was big in summer, when summer, earth-source hot-pump system used the first ground pipe laying heat-exchanger rig to utilize the REGIONAL GEOTHERMAL cooling, insert hardstand heat-exchanger rig unlatching operation being about to unbalance buried pipe unit winter, want the ground pipe laying heat-exchanger rig REGIONAL GEOTHERMAL of heat supply to improve as far as possible after will changing according to the season.
Switched to the hardstand heat-exchanger rig with ground pipe laying heat-exchanger rig and open operation summer, want the ground pipe laying heat-exchanger rig REGIONAL GEOTHERMAL of heat supply to improve as far as possible after will changing according to the season when not having refrigeration duty summer.
In the 3rd step, when big or heating load load is big when earth-source hot-pump system cooling amount, first and second ground pipe laying heat-exchanger rig switched to source pump is connected overall operation.Energy exchange unit and earth-source hot-pump system switch to off-state, safeguard stand-by.
The present invention make full use of the summer in winter should season temperature and building surface hold the condition of temperature and the difference of ground temperature, set up the switchable energy exchange unit ground pipe laying heat-exchanger rig unbalance and set up the switchable ground temperature accumulation of energy circulatory system with inhaling the heat release amount.When earth-source hot-pump system is building heat supplying or refrigeration, realizing inhaling the heat release unbalance amount | A-B| should replenish in season.Ground pipe laying heat-exchanger rig and hardstand heat-exchanger rig are set up the ground temperature accumulation of energy circulatory system.Wait in winter-spring season and several times short time sleet snow sky with hardstand heat-exchanger rig separately circulate by hardstand heat-exchanger rig circulation accumulation of heat summer.The limit draining is melted on realization runway and road surface while snowing dry and comfortable up to ground, is used to ensure that important transport hub is smooth and easy.
As shown in Figure 1, earth-source hot-pump system: the first ground pipe laying heat-exchanger rig; Second heat pump unit device; The 3rd indoor air conditioner three parts.The present invention increases the exchange of the 4th portion of energy and stores cell arrangement.Described energy exchange unit comprises: air water heat-exchanger rig, hardstand heat-exchanger rig, building cladding panel heat-exchanger rig, water landscape heat-exchanger rig.Wherein the water landscape heat-exchanger rig comprises: natural river, artificial streams, fountain, waterfall and the facility of collecting and distributing heat condition is arranged.The valve that the present invention adopts is motor-driven valve.
In the first ground pipe laying heat-exchanger rig 1 and second 2 of the ground pipe laying heat-exchanger rigs switch motor-driven valve valve is set
9, switch motor-driven valve valve is set between source pump 3 and indoor air conditioner
10The port of exterior wall cladding heat-exchanger rig 8 is provided with inspection switch motor-driven valve valve
8Hardstand heat-exchanger rig 7 ports are provided with inspection switch motor-driven valve valve
7The port of air water heat-exchanger rig 6 is provided with inspection switch motor-driven valve valve
6The port of water landscape heat-exchanger rig 5 is provided with inspection switch motor-driven valve valve
5Described motor-driven valve valve
9It is the transfer valve of little load and unbalance load; Valve
4It is the inspection switch valve of energy exchange unit 4.
Between the first ground pipe laying heat-exchanger rig 1 and source pump 3, be provided with the circulating pump pump
1Between indoor air conditioner and source pump 3, be provided with the circulating pump pump
4Between the second ground pipe laying heat-exchanger rig 2 and energy exchange unit, be provided with the circulating pump pump
3
When the accumulation of energy earth-source hot-pump system supplies big the load: open the operation valve
1, valve
10, valve
9, pump
1, pump
4Other pump valve contract fullys.
The accumulation of energy earth-source hot-pump system is during for little load: valve
1, valve
10, pump
1, pump
4Open operation; Other pump valve contract fullys.
The accumulation of energy earth-source hot-pump system is simultaneously should season for little load during accumulation of energy: valve
1, valve
10, pump
1, pump
4Open operation; Valve
9Close; Pump
3, valve
4, valve
5, valve
6, valve
7, valve
8Open operation.
Embodiment
Certain building of the north calculates through design department that to provide the winter thermic load be 5000KW; Summer refrigeration duty 2000KW; Measure every degree of depth rice heat exhaust 60W through the geological hydrology department of reconnoitring, every degree of depth rice caloric receptivity 40W.
Calculate configuration by source source pump equipment traditionally: winter source pump heating capacity 4000KW, input power 1000KW, recycle pump shaft power 100KW, total nominal heating capacity 5100KW.Caloric receptivity 4000KW when satisfying the thermic load condition.Calculate heat absorption hole number 4000 * 1000 ÷ 40=100000 rice by caloric receptivity.Every hole depth is wanted 1000 holes for 100 meters.Summer fever pump assembly refrigerating capacity 2000KW, input power 400KW, recycle pump shaft power 100KW, total heat exhaust 2500KW.Press heat exhaust and calculate heat extraction hole number 2500 * 1000 ÷ 60=41667 rice.Every hole depth is wanted 417 holes for 100 meters.According to the heating demand condition, design configurations 1000 hole installations.The caloric receptivity hole count is twice many than the heat exhaust hole count.Amount to have 583 holes to propose heat 1500KWh * 150 day * 10 hours=2.25MW every year more, and average every hole is reduced heat 4000KW and do not refilled heat.The result moves heat supply efficiency year by year and reduces, and decays to the 6th year and just has to add boiler.
If dispose by the accumulation of energy earth-source hot-pump system: winter condition, use unit equipment, end-equipment arranges that the hole count configuration is identical with traditional earth source heat pump.Summer condition is then different, is 1000 holes to be divided into 420 install the motor-driven valve valve additional with 580 two parts and at the house steward's boundary that links to each other
9With 420 hole portion main pipe rails and motor-driven valve valve
1, pump
1Connect, form the earth source heat pump refrigeration system; 580 hole portion main pipe rails and motor-driven valve valve
4, pump
3Connect, and be connected to form hold over system with energy exchange unit 4.
When freezing summer, shut off valve
9, valve
2Pump
2Open valve
1Pump
1, valve
10Pump
4
Accumulation of heat in summer simultaneously, open valve
2, pump
3, valve
5, valve
6, valve
7, valve
8
When Winter heat supply, open valve
9, pump
1, valve
1, pump
4, valve
10
The while shut off valve
2, pump
3And valve
5, valve
6, valve
7, valve
8
(1) water tower that dries in the air holds warm ability: 25 ℃ of temperature on average (20～30 ℃), equal 10 ℃ of ground temperature level (8～12 ℃), 5 ℃ of the water temperature difference of on average drying in the air.
(2) the deposited heat exchanger tube of the plug-in backboard of building holds warm ability: sunshine period 35 ℃ of mean temperatures (30～40 ℃), and equal 10 ℃ of ground temperature level (8～12 ℃), average heat exchange is held warm 100W/ rice, every square meter 400W.
(3) deposited heat exchanger tube holds warm ability under the hardstand: sunshine period 35 ℃ of mean temperatures (30～40 ℃), and equal 10 ℃ of ground temperature level (8～12 ℃), average heat exchange is held warm 80W/ rice, every square meter 300W.
(4) artificial streams, fountain, waterfall water landscape facility hold warm ability: 25 ℃ of temperature on average (20～30 ℃), equal 10 ℃ of ground temperature level (8～12 ℃) is on average dried in the air and is held the temperature difference 2～3.As 25 ℃ of the natural river mean temperatures of having ready conditions, average 10 ℃ of ground temperature (8～12 ℃), 8～10 ℃ of the open type direct current temperature difference.
More than hold 3 kinds of open types of warm form, 2 kinds of encloseds.Always have and severally selectively in more than 120 day summer, supplied heat.For example: select 4 ℃ of open type (1) (4) mean temperature differences, 10 hours ÷ 4 ÷ 1000=400 tons of 120 days ÷ of 2.25MW * 0.86 ÷/hour.Use 300 tons of/hour water towers that dry in the air, 100 tons of/hour streams and waterfall view.
For example: select the average every square meter 350W of enclosed (2) (4).2.25MW 16 hours ÷ 350w=3400m of 120 days ÷ of ÷
2. select 2000m
21500m is selected on hard ground, road
2The building out-hung panel.
Design concept of the present invention is that the collecting and distributing hot facility absorption this season temperature in ground and the building surface that are provided with on the utilization ground hold temperature, answer season pump cycle heat exchange adjusting ground temperature in advance with the ground heat exchanger of unbalance part, when adding earth-source hot-pump system again and freezing to underground heat exhaust or when heating from underground caloric receptivity, acting in conjunction realizes the balance of soil caloric receptivity or heat exhaust.When building when cold or thermic load are only arranged, the collecting and distributing hot facility in the ground that is provided with on the ground and ground heat exchanger cycle heat exchange are regulated ground temperature in advance in inactive season, and effect realizes that soil recepts the caloric and the balance of heat exhaust separately.
Described air water heat-exchanger rig, be used for the cooling tower that hot water changes cold water into for common form is unidirectional, it is two-way using at native system, and the warm water that both can in the winter time ground heat exchanger have been circulated changes cold water into, can the ground heat exchanger circulating water be dried in the air into warm water in summer again.
Described exterior wall cladding heat-exchanger rig is for level between the link plate material of external wall and body of wall bridle iron back and forth is provided with the PE100 piping facility.Its effect can not only be held building surface temperature biography inlet pipe inner fluid and be finished accumulation of energy, and changed the temperature between the link plate back side and the metope, thereby improved the heat transfer condition of construction wall, reduce the hot or cold of body of wall loss, also reduced the expense that building is conducted heat and loaded and reduced heat supply or cooling.
Described hardstand heat-exchanger rig; be pedestrian road surface at the building periphery; the parking lot; the view square; the airplane parking area; under the hard place surface layers such as pitch or concrete traffic road, in mechanical protection and temperature effect effective depth, level back and forth is provided with the PE100 pipe-line system and ground pipe laying heat-exchanger rig system vertically is set.Its interaction energy with summer the hardstand body hold temperature and transfer heat to tube fluid and finish the accumulation of heat effect with the final circulation of ground pipe laying heat exchange.Not only be applied to earth source heat pump suction thermal balance function, and when winter-spring season short time sleet snow day several times, utilize the soil temperature raising that summer, whole accumulation of energy facilities accumulated to add former primordium temperature, separately with ground pipe laying heat-exchanger rig (comprising under the hardstand) the circulation preheating after important transport hub subsurface horizontal laying heat exchanger tube system and the accumulation of heat, change the waterside draining while snowing dry and comfortable up to ground, is applied to ensure that important transport hub is smooth and easy.
Described water landscape heat-exchanger rig, be natural river, artificial streams, fountain, waterfall and the water landscape facility of alternating temperature condition is arranged, because of its position is in the building periphery, in the time of should using water temperature condition with ground pipe laying heat-exchanger rig circular energy storage season, can influence view district temperature and humidity, nice and cool winter in summer is moistening, especially improves urban heat land effect.
Described earth-source hot-pump system, pipe laying heat-exchanger rig system all meet GB50366-2005 (2009 editions) " earth-source hot-pump system engineering legislation ".
Claims (10)
1. heating of the earth source heat pump of an accumulation of energy in season or cooling method based on existing earth source heat pump heating or cold supply system, is characterized in that; Comprise following implementation step:
The first step according to the energy difference of implementing regional earth source heat pump heating or cooling, calculates the difference of the caloric receptivity A and the heat release amount B in this zone, and the imbalance values of source energy is with drawing this area as calculated | A-B|;
Second step, be the above-mentioned imbalance values of balance | A-B|, be connected to the energy exchange unit on the first ground pipe laying heat-exchanger rig with existing earth source heat pump heating or cold supply system, the cold/thermic load ability value of this energy exchange unit is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|;
The 3rd step is as the caloric receptivity A of this area during greater than heat release amount B, in the cooling phase, with this energy exchange unit and the first ground pipe laying heat-exchanger rig connection accumulation of heat; At heating period, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected;
When this area carry heat A less than heat release amount B the time, at heating period, cold-storage is connected in this energy exchange unit and the first ground pipe laying heat-exchanger rig; In the cooling phase, this energy exchange unit and the first ground pipe laying heat-exchanger rig are disconnected;
The 4th step, realize that through above-mentioned steps earth source heat pump heats or the energy balance of cooling, solve the unbalance problem of source, ground, this area energy.
2. by the earth source heat pump heating or the cooling method of the described accumulation of energy in season of claim 1, it is characterized in that; Second and third step can also be following steps in the said method:
In second step, be the above-mentioned imbalance values of balance | A-B|, with the separately supply of cold-peace heat, set up second ground pipe laying heat-exchanger rig and the energy exchange unit in existing earth source heat pump heating or cold supply system;
This first ground pipe laying heat-exchanger rig is set is used for independent heating, this second ground pipe laying heat-exchanger rig is used for independent cooling, and described first, second ground pipe laying heat-exchanger rig is connected with described energy exchange unit;
The 3rd step, during the phase disconnected the second ground pipe laying heat-exchanger rig and energy exchange unit according to the seasonal variations cooling, then the second ground pipe laying heat-exchanger rig was connected cooling with source pump; Simultaneously the first ground pipe laying heat-exchanger rig and source pump are disconnected, then the first ground pipe laying heat-exchanger rig is connected accumulation of heat with the energy exchange unit;
During according to the seasonal variations heating period, the first ground pipe laying heat-exchanger rig and energy exchange unit are disconnected, then the first ground pipe laying heat-exchanger rig is connected heating with source pump; Simultaneously the second ground pipe laying heat-exchanger rig and source pump are disconnected, then the second ground pipe laying heat-exchanger rig is connected cold-storage with the energy exchange unit.
3. by the earth source heat pump heating or the cooling method of the accumulation of energy in season described in the claim 1 or 2, it is characterized in that; Described energy exchange unit comprises the air water heat-exchanger rig;
Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, be connected to the air water heat-exchanger rig, cold/thermic load the ability value of this air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
4. by the earth source heat pump heating or the cooling method of the accumulation of energy in season described in the claim 1 or 2, it is characterized in that; Described energy exchange unit also comprises the hardstand heat-exchanger rig;
Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the hardstand heat-exchanger rig, cold/thermic load ability value the sum of this hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
5. by the earth source heat pump heating or the cooling method of the accumulation of energy in season described in the claim 1 or 2, it is characterized in that; Described energy exchange unit also comprises the water landscape heat-exchanger rig;
Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the water landscape heat-exchanger rig, cold/thermic load ability value the sum of this water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat transmission equipment is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
6. by the earth source heat pump heating or the cooling method of the accumulation of energy in season described in the claim 1 or 2, it is characterized in that; Described energy exchange unit also comprises the exterior wall cladding heat-exchanger rig;
Be the above-mentioned imbalance values of balance in described second step | A-B|, on first and second ground pipe laying heat-exchanger rig of existing earth source heat pump heating or cold supply system, also be connected to the exterior wall cladding heat-exchanger rig, cold/thermic load ability value the sum of this exterior wall cladding heat-exchanger rig and/or water landscape heat-exchanger rig and/or hardstand heat-exchanger rig and/or air water heat-exchanger rig is more than or equal to above-mentioned imbalance values | and A-B| preferably equals above-mentioned imbalance values | A-B|.
7. by the implement device of the described method of claim 1, comprise earth-source hot-pump system, it is characterized in that; Earth-source hot-pump system mainly comprises: source pump, indoor air conditioner and first and second ground pipe laying heat-exchanger rig;
This implement device also comprises the energy exchange unit, described energy exchange unit is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump energy exchange unit and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
8. by the described implement device of claim 7, it is characterized in that; Described energy exchange unit comprises the air water heat-exchanger rig, described air water heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, by switch motor-driven valve and start and stop circulating pump air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig is formed an energy circulation structure.
9. by the described implement device of claim 7, it is characterized in that; Described energy exchange unit also comprises the hardstand heat-exchanger rig, described hardstand heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve, described hardstand heat-exchanger rig and air water heat-exchanger rig form an energy circulation structure by switch motor-driven valve and start and stop circulating pump with hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig for being connected in parallel.
10. by the described implement device of claim 7, it is characterized in that; Described energy exchange unit also comprises water landscape heat-exchanger rig and external wall heat-exchanger rig, described water landscape heat-exchanger rig is connected with first and second ground pipe laying heat-exchanger rig with circulating pump by motor-driven valve with the external wall heat-exchanger rig, described water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig and air water heat-exchanger rig are connected in parallel each other, by switch motor-driven valve and start and stop circulating pump water landscape heat-exchanger rig, external wall heat-exchanger rig, hardstand heat-exchanger rig, air water heat-exchanger rig and first and second ground pipe laying heat-exchanger rig are formed an energy circulation structure.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692150A (en) * | 2012-06-16 | 2012-09-26 | 山东中瑞新能源科技有限公司 | Seasonal heat storage system for exchanging heat by utilizing buried pipe |
| CN103277939A (en) * | 2013-05-17 | 2013-09-04 | 金秋实 | Season energy storing ground-source heat pump system |
| CN105627587A (en) * | 2016-03-29 | 2016-06-01 | 青岛大学 | Solar energy absorption device for asphalt pavement |
| CN105650944A (en) * | 2015-11-09 | 2016-06-08 | 吴伟佳 | Ground source recovery system and method |
| CN106642789A (en) * | 2016-11-28 | 2017-05-10 | 东南大学 | Heat-source tower heat pump system capable of realizing comprehensive utilization of solar energy and seasonal energy storage in soil |
| CN112628837A (en) * | 2020-11-30 | 2021-04-09 | 北方瑞能(内蒙古)集团有限公司 | Multiple heat exchange system based on deep well heat exchange technology |
| CN113340025A (en) * | 2021-06-17 | 2021-09-03 | 赵宽 | Seasonal energy storage ground source heat pump refrigerating and heating method and system thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692150A (en) * | 2012-06-16 | 2012-09-26 | 山东中瑞新能源科技有限公司 | Seasonal heat storage system for exchanging heat by utilizing buried pipe |
| CN103277939A (en) * | 2013-05-17 | 2013-09-04 | 金秋实 | Season energy storing ground-source heat pump system |
| CN105650944A (en) * | 2015-11-09 | 2016-06-08 | 吴伟佳 | Ground source recovery system and method |
| CN105627587A (en) * | 2016-03-29 | 2016-06-01 | 青岛大学 | Solar energy absorption device for asphalt pavement |
| CN105627587B (en) * | 2016-03-29 | 2017-09-01 | 青岛大学 | A kind of asphalt road surface solar energy absorption plant |
| CN106642789A (en) * | 2016-11-28 | 2017-05-10 | 东南大学 | Heat-source tower heat pump system capable of realizing comprehensive utilization of solar energy and seasonal energy storage in soil |
| CN106642789B (en) * | 2016-11-28 | 2022-06-14 | 东南大学 | Heat source tower heat pump system for realizing comprehensive utilization of solar energy and seasonal soil energy storage |
| CN112628837A (en) * | 2020-11-30 | 2021-04-09 | 北方瑞能(内蒙古)集团有限公司 | Multiple heat exchange system based on deep well heat exchange technology |
| CN112628837B (en) * | 2020-11-30 | 2022-02-15 | 北方瑞能(内蒙古)集团有限公司 | Multiple heat exchange system based on deep well heat exchange technology |
| CN113340025A (en) * | 2021-06-17 | 2021-09-03 | 赵宽 | Seasonal energy storage ground source heat pump refrigerating and heating method and system thereof |
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| Publication number | Publication date |
|---|---|
| CN101893350B (en) | 2012-07-11 |
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