CN103644616B - A kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system - Google Patents
A kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system Download PDFInfo
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- CN103644616B CN103644616B CN201310708883.7A CN201310708883A CN103644616B CN 103644616 B CN103644616 B CN 103644616B CN 201310708883 A CN201310708883 A CN 201310708883A CN 103644616 B CN103644616 B CN 103644616B
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Abstract
The invention provides a kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system, comprising: solar thermal collector, soil heat exchanger, source pump, radiator; By across season underground heat accumulation, season heating technology, collected by the solar radiant heat of non-heating season and store, heating period is by the heat extraction that stores out and be building heating together with solar thermal collection system in the winter time.Its beneficial effect is: ensure that heat exchanger surrounding soil temperature field take year as the thermal balance in cycle, ensure the Effec-tive Function of source pump, simultaneously effective in soil additional heat, for building and heating provides clean energy resource.The present invention has six kinds of control methods: solar energy-soil thermal storage, soil supplying cold directly, solar energy-soil thermal storage is soil source heat pump cooling, soil source heat pump cooling mode, solar energy direct heating, soil source heat pump heating method simultaneously.
Description
Technical field
The present invention relates to solar energy heat utilization field, particularly a kind of heat pump heating air-conditioning system that can store after summer solar energy being converted to heat energy and control method.
Background technology
Due to geographical position and the climatic characteristic of China, overwhelming majority building all needs to use heating air-conditioner system, and the fast development of urban architecture brings huge development potentiality to the application of earth-source hot-pump system in building heating ventilation air-conditioning system.According to statistics, the ratio of building energy consumption shared by China's energy overall consumption reaches 27.6%, and still sustainable growth.Current China cities and towns civil buildings run power consumption and account for about 25% of China's gross generation, and the fire coal that the heating of northern area cities and towns consumes accounts for 15% ~ 20% of China's non-power generating coal consumption, and these numerical value are only the energy that constructing operation consumes.
The energy that building use procedure consumes accounts for its full life process and consumes more than 80% of total energy.Present Chinese cities and towns constructing operation energy consumption, by northern area winter heating energy consumption, house and the general energy consumption of public building except heating, large public building structure of energy consumption, accounts for 20% ~ 22% of social total energy consumption.Building energy consumption affects by unit are energy consumption and building total amount, increases along with the increase of building total amount.In the U.S., Europe and the developed country such as Japanese, constructing operation energy consumption level has been in and has manufactured 20% ~ 25% of big country period.
In building energy consumption, HVAC and the ratio shared by hot-water heating system close to 60%, and along with living standards of the people raising also have continue rise trend.
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 be used alone soil source heat pump system to heat, air-conditioning, inconsistent to soil heat-obtaining and concurrent heating of system will certainly be caused, the soil moisture around soil heat exchanger will decline year by year, although the annual range of decrease is little, but after long-play, Soil Temperature Field around buried tube heat exchanger 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, even there will be the phenomenon of undercapacity.
Summary of the invention
In order to solve the thermal balance that heat exchanger surrounding soil temperature field take year as the cycle, ensure the Effec-tive Function of source pump, simultaneously effective in problems such as soil additional heat, by across season underground heat accumulation, season heating technology, collected by the solar radiant heat of non-heating season and store, heating period by the heat extraction that stores 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 a kind of solar energy seasonal soil thermal storage heat pump 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, and be communicated with valve 42f, valve 44f by pipeline 41g, pipeline 45g is communicated with valve 44f, valve 46f, valve 47f respectively.
The invention provides a kind of solar energy seasonal soil thermal storage heat pump 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, realize solar energy-soil thermal storage; Non-heating period or heating system out of service time, the solar heat collected by solar thermal collector by soil heat exchanger stores in deep soil, to improve the soil moisture around soil heat exchanger, continues Effec-tive Function with safeguards system.
Control method two: valve 21f, valve 33f, valve 34f, valve 44f, valve 47f, valve 14f, valve 15f open, when all the other valves are all closed, realizes soil supplying cold directly; Summer air-conditioning Ji Zhongruo night or overcast and rainy time, solar thermal collector stop thermal-arrest, if now building still have refrigeration duty, can realize during system cloud gray model soil to building supplying cold directly.
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 comparatively large or soil heat exchanger surrounding soil temperature is higher, when soil supplying cold directly is difficult to meet air-conditioning needs, starts source pump and freeze; Solar thermal collector normally runs simultaneously, will collect solar heat is stored 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 mode.
Control method five: when In The Initial Period Of Heating building thermic load is 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 44f, valve 47f, valve 26f, valve 11f open, all the other valves are all closed, and source pump is closed, and realizes 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.
A kind of solar energy provided by the invention seasonal soil thermal storage heat pump composite heat supply air-conditioning system, its beneficial effect is: ensure that heat exchanger surrounding soil temperature field take year as the thermal balance in cycle, ensure the Effec-tive Function of source pump, simultaneously effective in 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.
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system, comprise: solar thermal collector 10, 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 10 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, and be communicated with valve 42f42, valve 44f44 by pipeline 41g41, pipeline 45g45 is communicated with valve 44f44, valve 46f46, valve 47f47 respectively.
As shown in Figure 1, the invention provides a kind of solar energy seasonal soil thermal storage heat pump 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, when all the other valves are all closed, solar thermal collector 10 provides heat energy to soil heat exchanger 20, realizes solar energy-soil thermal storage; Non-heating period or heating system out of service time, by soil heat exchanger 20, the solar heat that solar thermal collector 10 is collected is stored in deep soil, to improve the soil moisture around soil heat exchanger, continues Effec-tive Function with safeguards system.
Control method two: valve 21f21, valve 33f33, valve 34f34, valve 44f44, valve 47f47, valve 14f14, valve 15f15 open, when all the other valves are all closed, realizes soil supplying cold directly; Summer air-conditioning Ji Zhongruo night or overcast and rainy time, solar thermal collector 10 stops thermal-arrest, if now building still have refrigeration duty, can realize during system cloud gray model soil to building supplying cold directly.
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 comparatively large or soil heat exchanger surrounding soil temperature is higher, when soil supplying cold directly is difficult to meet air-conditioning needs, starts source pump 30 and freeze; Solar thermal collector 10 normally runs simultaneously, will collect solar heat is stored 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 mode.
Control method five: when In The Initial Period Of Heating building thermic load is 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 44f, valve 47f, 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 heat is 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. a solar energy seasonal soil thermal storage heat pump composite heat supply air-conditioning system, comprise solar thermal collector (10), 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 (10) 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), be communicated with valve 42f (42), valve 44f (44) by pipeline 41g (41), pipeline 45g (45) is communicated with valve 44f (44), valve 46f (46), valve 47f (47) respectively.
2. use a control method for a kind of solar energy as claimed in claim 1 seasonal soil thermal storage heat pump composite heat supply air-conditioning system, comprise 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 (10) 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 soil supplying cold directly;
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 mode;
E, control method five: when In The Initial Period Of Heating building thermic load is 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 44f (44), valve 47f (47), valve 26f (26), valve 11f (11) opens, all the other valves are all closed, source pump (30) is closed, realize solar energy direct heating,
F, control method six: when heating period night or cloudy snow weather, solar thermal collector (10) active set heat is 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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| 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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