CN103644616A - Heat pump heating and air conditioning hybrid system with solar seasonal soil heat storage - Google Patents
Heat pump heating and air conditioning hybrid system with solar seasonal soil heat storage Download PDFInfo
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- CN103644616A CN103644616A CN201310708883.7A CN201310708883A CN103644616A CN 103644616 A CN103644616 A CN 103644616A CN 201310708883 A CN201310708883 A CN 201310708883A CN 103644616 A CN103644616 A CN 103644616A
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Abstract
The invention provides a heat pump heating and air conditioning hybrid system with solar seasonal soil heat storage, which comprises a solar collector, a soil heat exchanger, a heat pump unit and a radiator. The hybrid system collects and stores solar radiant heat in a non-heating season according to the technology of cross-seasonal underground heat storage and seasonal heating, and extracts the stored heat during a winter heating period to provide heating for buildings in combination with a solar collecting system. The hybrid system has the beneficial effects that the heat balance of a soil temperature field on an annual cycle around the heat exchanger and the efficient operation of the heat pump unit are guaranteed, and simultaneously the hybrid system effectively replenishes heat to soil, and provides heating for buildings with clean energy. The hybrid system provided by the invention provides six control methods of solar-soil heat storage, soil direct cooling, solar-soil heat storage in conjunction with soil-source heat pump cooling, soil-source heat pump cooling mode, solar direct heating and soil-source heat pump heating.
Description
Technical field
The present invention relates to solar energy heat utilization field, particularly a kind of heat pump heating air-conditioning system and control method that can store after summer solar energy being converted to heat energy.
Background technology
Due to geographical position and the climatic characteristic of China, overwhelming majority building all needs to use heating air-conditioner system, and to earth-source hot-pump system, the application in building heating ventilation air-conditioning system has brought huge development potentiality in the fast development of urban architecture.According to statistics, building energy consumption shared ratio in China's energy overall consumption has reached 27.6%, and still sustainable growth.The power consumption of China's cities and towns civil buildings operation at present accounts for 25% left and right of China's gross generation, and the fire coal that the heating of northern area cities and towns consumes accounts for 15%～20% of the non-coal for power generation amount of China, the energy that these numerical value only consume for constructing operation.
The energy that building use procedure consumes accounts for its full life process and consumes the more than 80% of total energy.Present Chinese cities and towns constructing operation energy consumption, by northern area winter heating energy consumption, house and energy consumption, the large public building structure of energy consumption of general public building except heating, accounts for 20%～22% of social total energy consumption.Building energy consumption is affected by unit are energy consumption and building total amount, along with the increase of building total amount, increases.In the U.S., Europe and the developed country such as Japanese, constructing operation energy consumption level is in manufacturing 20%～25% of big country period.
In building energy consumption, the shared ratio of HVAC and hot-water heating system approaches 60%, and along with the raising of living standards of the people also has the trend that continues rising.
The severe cold area heat supply in winter phase is long, thermic load is very large, and the summer air-conditioning phase is relatively short, refrigeration duty is less, the mean temperature of soil is lower, if use separately soil source heat pump system to heat, air-conditioning, will certainly cause inconsistent to soil heat-obtaining and concurrent heating of system, the soil heat exchanger soil moisture around will decline year by year, although the annual range of decrease is little, but after long-play, buried tube heat exchanger Soil Temperature Field around there will be expendable deterioration, simultaneously along with heat exchanger surrounding soil temperature declines gradually, the coefficient of performance in heating of heat pump also declines gradually, the phenomenon that even there will be undercapacity.
Summary of the invention
In order to solve heat exchanger surrounding soil temperature field, take the thermal balance that year is the cycle, guarantee the efficient operation of source pump, simultaneously effectively to problems such as soil additional heat, by across season underground heat accumulation, season heating technology, the solar radiant heat of non-heating season is collected to storage, and heating period by the heat extraction storing out and be building heating together with solar thermal collection system in the winter time.
The technical solution adopted in the present invention is: the invention provides the seasonal soil thermal storage heat pump of a kind of solar energy composite heat supply air-conditioning system; comprise: solar thermal collector, soil heat exchanger, source pump, radiator; valve 11f, valve 12f, valve 14f, valve 15f, valve 21f, valve 23f, valve 24f, valve 26f, valve 31f, valve 33f, valve 34f, valve 36f, valve 42f, valve 44f, valve 46f, valve 47f, pipeline 13g, pipeline 22g, pipeline 25g, pipeline 27g, pipeline 32g, pipeline 35g, pipeline 41g, pipeline 45g; Solar thermal collector is communicated with valve 11f, valve 12f, and pipeline 13g is communicated with valve 12f, valve 14f, valve 15f, valve 23f respectively; Soil heat exchanger is communicated with valve 15f, valve 21f, pipeline 22g is communicated with valve 21f, valve 23f, valve 24f, valve 33f respectively, pipeline 25g is communicated with valve 14f, valve 24f, valve 26f, valve 47f respectively, and pipeline 27g is communicated with valve 11f, valve 26f respectively; Source pump is communicated with valve 31f, valve 36f, valve 42f, valve 46f respectively, and pipeline 32g is communicated with valve 31f, valve 33f, valve 34f respectively; Radiator is communicated with valve 34f by pipeline 35g, by pipeline 41g, is communicated with valve 42f, valve 44f, and pipeline 45g is communicated with valve 44f, valve 46f, valve 47f respectively.
The invention provides the seasonal soil thermal storage heat pump of a kind of solar energy composite heat supply air-conditioning system and there are six kinds of control methods;
Control method one: valve 12f, valve 15f, valve 21f, valve 24f, valve 26f, valve 11f open, and when all the other valves are all closed, solar thermal collector provides heat energy to soil heat exchanger, realizes solar energy-soil thermal storage; At non-heating period or heating system, when out of service, the solar heat of solar thermal collector being collected by soil heat exchanger stores in deep soil, to improve the soil heat exchanger soil moisture around, with safeguards system, continues efficient operation.
Control method two: valve 21f, valve 33f, valve 34f, valve 44f, valve 47f, valve 14f, valve 15f open, and when all the other valves are all closed, realize the direct cooling of soil; At summer air-conditioning Ji Zhongruo, at night or when overcast and rainy, solar thermal collector stops thermal-arrest, if now building still has refrigeration duty, during system operation, can realize soil to the direct cooling of building.
Control method three: valve 12f, valve 15f, valve 21f, valve 33f, valve 31f, valve 46f, valve 47f, valve 26f, valve 11f open, valve 42f, valve 36f open, when all the other valves are all closed, realize solar energy-soil thermal storage soil source heat pump cooling simultaneously; When summer air conditioning load is large or soil heat exchanger surrounding soil temperature is higher, when the direct cooling of soil is difficult to meet air-conditioning needs, starts source pump and freeze; Solar thermal collector normally moves simultaneously, will collect to such an extent that solar heat stores in its surrounding soil by soil heat exchanger.
Control method four: when solar thermal collector stops thermal-arrest, valve 21f, valve 33f, valve 31f, valve 46f, valve 47f, valve 14f, valve 15f open, valve 42f, valve 36f open, and when all the other valves are all closed, realize soil source heat pump cooling pattern.
Control method five: when In The Initial Period Of Heating building thermic load less, solar radiation is simultaneously relatively strong, pass through long accumulation of heat soil heat exchanger environment temperature higher simultaneously, when solar energy soil thermal storage efficiency is relatively low, valve 12f, valve 15f, valve 21f, valve 33f, valve 34f, valve 26f, valve 11f open, all the other valves are all closed, and source pump is closed, and realize solar energy direct heating.
Control method six: when heating period night or cloudy snow weather, solar thermal collector active set heat is zero, valve 21f, valve 33f, valve 31f, valve 46f, valve 47f, valve 14f, valve 15f open, valve 42f, valve 36f open, all the other valves are all closed, source pump is opened, and realizes soil source heat pump heating.
The seasonal soil thermal storage heat pump of a kind of solar energy provided by the invention composite heat supply air-conditioning system, its beneficial effect is: guarantee that heat exchanger surrounding soil temperature field take the thermal balance that year is the cycle, guarantee the efficient operation of source pump, simultaneously effectively to soil additional heat, for building and heating provides clean energy resource.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Number in the figure is described as follows:
10-solar thermal collector, 20-soil heat exchanger, 30-source pump, 40-radiator, 11-valve 11f, 12-valve 12f, 14-valve 14f, 15-valve 15f, 21-valve 21f, 23-valve 23f, 24-valve 24f, 26-valve 26f, 31-valve 31f, 33-valve 33f, 34-valve 34f, 36-valve 36f, 42-valve 42f, 44-valve 44f, 46-valve 46f, 47-valve 47f, 13-pipeline 13g, 22-pipeline 22g, 25-pipeline 25g, 27-pipeline 27g, 32-pipeline 32g, 35-pipeline 35g, 41-pipeline 41g, 43-pipeline 43g, 45-pipeline 45g.
The specific embodiment
As shown in Figure 1, the invention provides the seasonal soil thermal storage heat pump of a kind of solar energy composite heat supply air-conditioning system, comprise: solar thermal collector 11, soil heat exchanger 20, source pump 30, radiator 40, valve 11f11, valve 12f12, valve 14f14, valve 15f15, valve 21f21, valve 23f23, valve 24f24, valve 26f26, valve 31f31, valve 33f33, valve 34f34, valve 36f36, valve 42f42, valve 44f44, valve 46f46, valve 47f47, pipeline 13g13, pipeline 22g22, pipeline 25g25, pipeline 27g27, pipeline 32g32, pipeline 35g35, pipeline 41g41, pipeline 45g45,
Solar thermal collector 11 is communicated with valve 11f11, valve 12f12, and pipeline 13g13 is communicated with valve 12f12, valve 14f14, valve 15f15, valve 23f23 respectively;
Soil heat exchanger 20 is communicated with valve 15f15, valve 21f21, pipeline 22g22 is communicated with valve 21f21, valve 23f23, valve 24f24, valve 33f33 respectively, pipeline 25g25 is communicated with valve 14f14, valve 24f24, valve 26f26, valve 47f47 respectively, and pipeline 27g27 is communicated with valve 11f11, valve 26f26 respectively;
Source pump 30 is communicated with valve 31f31, valve 36f36, valve 42f42, valve 46f46 respectively, and pipeline 32g32 is communicated with valve 31f31, valve 33f33, valve 34f34 respectively;
Radiator 40 is communicated with valve 34f34 by pipeline 35g35, by pipeline 41g41, is communicated with valve 42f42, valve 44f44, and pipeline 45g45 is communicated with valve 44f44, valve 46f46, valve 47f47 respectively.
As shown in Figure 1, the invention provides the seasonal soil thermal storage heat pump of a kind of solar energy composite heat supply air-conditioning system and there are six kinds of control methods;
Control method one: valve 12f12, valve 15f15, valve 21f21, valve 24f24, valve 26f26, valve 11f11 open, and when all the other valves are all closed, solar thermal collector 11 provides heat energy to soil heat exchanger 20, realizes solar energy-soil thermal storage; At non-heating period or heating system, when out of service, the solar heat of solar thermal collector 11 being collected by soil heat exchanger 20 stores in deep soil, to improve the soil heat exchanger soil moisture around, with safeguards system, continues efficient operation.
Control method two: valve 21f21, valve 33f33, valve 34f34, valve 44f44, valve 47f47, valve 14f14, valve 15f15 open, and when all the other valves are all closed, realize the direct cooling of soil; At summer air-conditioning Ji Zhongruo, at night or when overcast and rainy, solar thermal collector 11 stops thermal-arrest, if now building still has refrigeration duty, during system operation, can realize soil to the direct cooling of building.
Control method three: valve 12f12, valve 15f15, valve 21f21, valve 33f33, valve 31f31, valve 46f46, valve 47f47, valve 26f26, valve 11f11 open, valve 42f42, valve 36f36 open, when all the other valves are all closed, realize solar energy-soil thermal storage soil source heat pump cooling simultaneously; When summer air conditioning load is large or soil heat exchanger surrounding soil temperature is higher, when the direct cooling of soil is difficult to meet air-conditioning needs, starts source pump 30 and freeze; Solar thermal collector 10 normally moves simultaneously, will collect to such an extent that solar heat stores in its surrounding soil by soil heat exchanger 20.
Control method four: when solar thermal collector 10 stops thermal-arrest, valve 21f21, valve 33f33, valve 31f31, valve 46f46, valve 47f47, valve 14f14, valve 15f15 open, valve 42f42, valve 36f36 open, when all the other valves are all closed, realize soil source heat pump cooling pattern.
Control method five: when In The Initial Period Of Heating building thermic load less, solar radiation is simultaneously relatively strong, pass through long accumulation of heat soil heat exchanger environment temperature higher simultaneously, when solar energy soil thermal storage efficiency is relatively low, valve 12f12, valve 15f15, valve 21f21, valve 33f33, valve 34f34, valve 26f26, valve 11f11 open, all the other valves are all closed, and source pump 30 is closed, and realize solar energy direct heating.
Control method six: when heating period night or cloudy snow weather, solar thermal collector 10 active set heats are zero, valve 21f21, valve 33f33, valve 31f31, valve 46f46, valve 47f47, valve 14f14, valve 15f15 open, valve 42f42, valve 36f36 open, all the other valves are all closed, source pump 30 is opened, and realizes soil source heat pump heating.
Claims (2)
1. the seasonal soil thermal storage heat pump of solar energy composite heat supply air-conditioning system, comprise solar thermal collector (11), soil heat exchanger (20), source pump (30), radiator (40), valve 11f (11), valve 12f (12), valve 14f (14), valve 15f (15), valve 21f (21), valve 23f (23), valve 24f (24), valve 26f (26), valve 31f (31), valve 33f (33), valve 34f (34), valve 36f (36), valve 42f (42), valve 44f (44), valve 46f (46), valve 47f (47), pipeline 13g (13), pipeline 22g (22), pipeline 25g (25), pipeline 27g (27), pipeline 32g (32), pipeline 35g (35), pipeline 41g (41), pipeline 45g (45), it is characterized in that:
Solar thermal collector (11) is communicated with valve 11f (11), valve 12f (12), and pipeline 13g (13) is communicated with valve 12f (12), valve 14f (14), valve 15f (15), valve 23f (23) respectively;
Soil heat exchanger (20) is communicated with valve 15f (15), valve 21f (21), pipeline 22g (22) is communicated with valve 21f (21), valve 23f (23), valve 24f (24), valve 33f (33) respectively, pipeline 25g (25) is communicated with valve 14f (14), valve 24f (24), valve 26f (26), valve 47f (47) respectively, and pipeline 27g (27) is communicated with valve 11f (11), valve 26f (26) respectively;
Source pump (30) is communicated with valve 31f (31), valve 36f (36), valve 42f (42), valve 46f (46) respectively, and pipeline 32g (32) is communicated with valve 31f (31), valve 33f (33), valve 34f (34) respectively;
Radiator (40) is communicated with valve 34f (34) by pipeline 35g (35), by pipeline 41g (41), be communicated with valve 42f (42), valve 44f (44), pipeline 45g (45) is communicated with valve 44f (44), valve 46f (46), valve 47f (47) respectively.
2. a control method of using the seasonal soil thermal storage heat pump of a kind of solar energy as claimed in claim 1 composite heat supply air-conditioning system, comprises following control method, it is characterized in that:
A, control method one: valve 12f (12), valve 15f (15), valve 21f (21), valve 24f (24), valve 26f (26), valve 11f (11) open, when all the other valves are all closed, solar thermal collector (11) provides heat energy to soil heat exchanger (20), realizes solar energy-soil thermal storage;
B, control method two: valve 21f (21), valve 33f (33), valve 34f (34), valve 44f (44), valve 47f (47), valve 14f (14), valve 15f (15) open, when all the other valves are all closed, realize the direct cooling of soil;
C, control method three: valve 12f (12), valve 15f (15), valve 21f (21), valve 33f (33), valve 31f (31), valve 46f (46), valve 47f (47), valve 26f (26), valve 11f (11) open, valve 42f (42), valve 36f (36) open, when all the other valves are all closed, realize solar energy-soil thermal storage soil source heat pump cooling simultaneously;
D, control method four: when solar thermal collector 10 stops thermal-arrest, valve 21f (21), valve 33f (33), valve 31f (31), valve 46f (46), valve 47f (47), valve 14f (14), valve 15f (15) open, valve 42f (42), valve 36f (36) open, when all the other valves are all closed, realize soil source heat pump cooling pattern;
E, control method five: when In The Initial Period Of Heating building thermic load less, solar radiation is simultaneously relatively strong, pass through long accumulation of heat soil heat exchanger environment temperature higher simultaneously, when solar energy soil thermal storage efficiency is relatively low, valve 12f (12), valve 15f (15), valve 21f (21), valve 33f (33), valve 34f (34), valve 26f (26), valve 11f (11) open, all the other valves are all closed, source pump (30) is closed, and realizes solar energy direct heating;
F, control method six: when heating period night or cloudy snow weather, solar thermal collector 10 active set heats are zero, valve 21f (21), valve 33f (33), valve 31f (31), valve 46f (46), valve 47f (47), valve 14f (14), valve 15f (15) open, valve 42f (42), valve 36f (36) open, all the other valves are all closed, source pump (30) is opened, and realizes soil source heat pump heating.
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| CN201310708883.7A CN103644616B (en) | 2013-12-20 | 2013-12-20 | A kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system |
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| CN201310708883.7A CN103644616B (en) | 2013-12-20 | 2013-12-20 | A kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051971A (en) * | 2016-06-06 | 2016-10-26 | 湖北工业大学 | Subway station air conditioner system based on energy pile and solar sensible heat technology in parallel |
| CN107047330A (en) * | 2017-01-23 | 2017-08-18 | 重庆匠心通风技术有限公司 | A kind of zero energy consumption solar energy ox bed heating system and heating method |
| CN111121344A (en) * | 2019-12-22 | 2020-05-08 | 同济大学 | Solar-assisted ground source multi-connected heat pump system |
| CN114909703A (en) * | 2022-04-02 | 2022-08-16 | 大连理工大学 | Season-crossing cold and hot dual-energy-storage-source system of solar PVT heat pump |
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