CN103629769A - Integration device of solar central air conditioning system and heat exchange method - Google Patents
Integration device of solar central air conditioning system and heat exchange method Download PDFInfo
- Publication number
- CN103629769A CN103629769A CN201310659208.XA CN201310659208A CN103629769A CN 103629769 A CN103629769 A CN 103629769A CN 201310659208 A CN201310659208 A CN 201310659208A CN 103629769 A CN103629769 A CN 103629769A
- Authority
- CN
- China
- Prior art keywords
- water
- solar
- solar energy
- central air
- bromide absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a solar utilization technology and aims at providing an integration device of a solar central air conditioning system and a heat exchange method. The integration device comprises a solar vacuum tube heat collection device and a lithium bromide absorption refrigeration unit which form a hot water loop by virtue of a pipeline, wherein a fan coil and the lithium bromide absorption refrigeration unit form a chilled water loop by virtue of a pipeline; a water storage tank and the fan coil form a water cooling loop by virtue of a pipeline. The integration device is characterized by further comprising a solar water heater, wherein the solar vacuum tube heat collection device, the solar water heater and the lithium bromide absorption refrigeration unit are sequentially connected by virtue of pipelines.The integration device has the advantages that the solar water heater is integrated on the solar central air conditioning system, so that hot water generated by the solar vacuum tube heat collection device is reheated so as to efficiently meet the refrigeration temperature of the lithium bromide absorption refrigeration unit and improve the solar energy utilization efficiency of the whole system.
Description
Technical field
The present invention relates to solar utilization technique, particularly utilize solar energy central air-conditioning system integrating device and heat-exchange method.
Background technology
In recent years; the fossil energy worsening shortages such as coal, oil, natural gas, the problems such as energy crisis and environmental pollution day by day highlight, and have become the cardinal task that threatens human survival; the exploitation of new forms of energy are seemed to particularly important, particularly the exploitation to solar energy.Solar energy has the unrivaled advantage of other energy as a kind of reproducible clean energy resource.China's solar energy resources is very abundant, and an overwhelming majority area year irradiation is greater than 5 * 10
6kJ/m
2, year sunshine time is more than 2000h.Solar energy is inexhaustible, all can develop everywhere, without exploitation and transportation, does not pollute the environment and destroys the ecological balance, meets the requirement of " building a resource-conserving and environment-friendly society " that country advocates, has good effects of energy saving and emission reduction.Therefore to the exploitation of solar energy, will create good social benefit, environmental benefit and economic benefit.
The aircondition refrigeration modes of existing solar energy mainly contains photoelectricity refrigeration and with two kinds of the absorption refrigerations of auxiliary fuel.Wherein, the solar airconditioning of absorption refrigeration is comprised of vacuum tube collector, lithium-bromide absorption-type refrigerating machine, circulating pump, cooling tower, air-cooled coil pipe, auxiliary fuel or gas fired-boiler and automatic control system.Lithium-bromide absorption-type refrigerating machine is as standard device, and it is mainly comprised of high pressure generator, low pressure generator, evaporimeter, absorber, cooling tower, cool-heat-exchanger, concentrator, generator pump.The cold-producing medium of lithium-bromide absorption-type refrigerating machine group is nontoxic, and atmosphere is not had to destruction, and effects of energy conservation and environmental protection is remarkable.But, because vacuum tube solar heating element heat production coolant-temperature gage does not reach the temperature requirement that refrigeration machine drives, refrigeration machine can not normally be moved continuously, cause the problem of whole system coefficient of performance step-down not to be well solved.
Given this, by the solar water stove focusing at solar energy central air-conditioning system integration of compact concavees lens, the hot water that solar energy vacuum tube heat collector is produced heats again, the hot water operating temperature that reaches energy high efficiency drive lithium-bromide absorption-type refrigerating machine unit, is improved whole solar energy central Performance for Air Conditioning Systems coefficient.Meanwhile, by large-scale tank, store the chilled water produced daytime for evening, this water cold-storage method can meet the requirement that central air-conditioning moves continuously.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the problem that existing solar airconditioning is made a low multiple use, and proposes a kind of solar energy central air-conditioning system integrating device and heat-exchange method.
For solving the problems of the technologies described above, solution of the present invention is:
A kind of solar energy central air-conditioning system integrating device is provided, comprises the solar energy vacuum tube heat collector and the lithium-bromide absorption-type refrigerating machine group that by pipeline, form hot-water return; Fan coil forms chilled water circuit by pipeline and lithium-bromide absorption-type refrigerating machine group, and catch basin forms water cold-storage loop by pipeline and fan coil; It is characterized in that, this device also comprises solar water stove, and solar energy vacuum tube heat collector, solar water stove are connected by pipeline successively with lithium-bromide absorption-type refrigerating machine group.
In the present invention, this device also comprises two water demineralizers, is connected in described hot-water return and chilled water circuit respectively by pipeline.The interior recirculated water moving in device is all the soft water of processing through softening, soft water is less scaling when individual device interior circulates like this, can not reduce collecting efficiency, the operational efficiency of lithium-bromide absorption-type refrigerating machine group and the heat exchange efficiency of fan coil of solar energy vacuum tube heat collector and solar water stove.
In the present invention, described solar water stove is the solar energy equipment that concavees lens focus on.
The present invention also further provides the method for the solar energy central air-conditioning system integrated heat exchange based on aforementioned means, comprising:
(1) hot water flow process
Utilize the heating of solar energy vacuum tube heat collector one-level to produce low-temperature water heating, by warm water in the secondary heating generation of solar water stove, enter lithium-bromide absorption-type refrigerating machine group and drive refrigeration; Through lithium-bromide absorption-type refrigerating machine group, drive the normal-temperature water of cooling to reenter solar energy vacuum tube heat collector by water circulating pump, according to this circulation;
The temperature range of described low-temperature water heating is at 50-65 ℃; Described middle warm water's temperature range is at 65-90 ℃; The temperature range of described normal temperature hot water is at 30-40 ℃;
(2) chilled water flow process
Lithium-bromide absorption-type refrigerating machine group is produced chilled water, by chilled water pump transmission & distribution, enters fan coil, gives air cooling-down in the room that uses air-conditioning, according to this circulation by fan coil; The temperature range of chilled water is at 7-12 ℃;
Meanwhile, with catch basin, store the chilled water produced daytime for evening, by water cold-storage mode, meet the continuous requirement moving of central air-conditioning;
(3) moisturizing and demineralized water flow process
When the soft water of whole system circulation is not enough, former water softens by water demineralizer, then fills in hot-water return and chilled water circuit;
In said process, the Energy Efficiency Ratio (COP) of solar energy central air-conditioning system integrating device realizes by following formula:
In formula: COP-solar energy central air-conditioning system integrating device Energy Efficiency Ratio;
Q-solar energy central air-conditioning system integrating device refrigerating capacity, kW;
W
1-solar energy vacuum tube heat collector pump group power, kW;
W
2-solar water stove pump group power, kW;
W
3-lithium-bromide absorption-type refrigerating machine pump group power, kW;
W
4-fan coil power, kW.
In solar energy central air-conditioning system integrating device Energy Efficiency Ratio formula, refrigerating capacity Q realizes by following formula:
Q=CM（T
o－T
i）
In formula: the specific heat at constant pressure of C-water, kJ/ (kg; ℃)
M-chilled-water flow, kg/s;
T
o-chilled water outlet temperature, ℃;
T
i-chilled water inlet temperature, ℃.
Pump group power W realizes by following formula:
W=ρgQH
In formula: W-pump group power, kW;
ρ-pump is carried the density of liquid, kg/m
3;
G-acceleration of gravity, m/s
2;
Q-pump is carried the flow of liquid, kg/s;
H-pump dehvery lift, m.
Compared with prior art, advantage of the present invention is:
By at solar energy central air-conditioning system integrated solar water heater, the hot water of solar energy vacuum tube heat collector product is heated again, meet the temperature of high efficiency drive lithium-bromide absorption-type refrigerating machine refrigeration, improve the utilization ratio of whole system solar energy.
Accompanying drawing explanation
Fig. 1 is solar air-conditioner system integrating device flow chart of the present invention;
Reference numeral in figure is: 1 solar energy vacuum tube heat collector; 2 solar water stoves; 3 lithium-bromide absorption-type refrigerating machine groups; 4 fan coils; 5 catch basins; 6 water demineralizers.
The specific embodiment
Solar energy central air-conditioning system integrating device in this embodiment, comprises the solar energy vacuum tube heat collector 1, the solar water stove 2 and lithium-bromide absorption-type refrigerating machine group 3 that by pipeline, are connected and formed with this hot-water return; Fan coil 4 forms chilled water circuit by pipeline and lithium-bromide absorption-type refrigerating machine group 3, and catch basin 5 forms water cold-storage loop by pipeline and fan coil 4.Two water demineralizers 6 are connected in hot-water return and chilled water circuit by pipeline respectively.Certainly, also can adopt a water demineralizer 6 to be connected to respectively in above-mentioned loop by pipeline.
Solar energy central air-conditioning system integrated heat exchange method in the present embodiment, comprises following flow process:
(1) hot water flow process
Utilize solar energy vacuum tube heat collector 1 one-level heating to produce low-temperature water heating, by warm water in the secondary heating generation of solar water stove 2, enter lithium-bromide absorption-type refrigerating machine group 3 and drive refrigeration; Through lithium-bromide absorption-type refrigerating machine group 3, drive the normal-temperature water of cooling to reenter solar energy vacuum tube heat collector 1 by water circulating pump, according to this circulation;
The temperature range of described low-temperature water heating is at 50-65 ℃; Described middle warm water's temperature range is at 65-90 ℃; The temperature range of described normal temperature hot water is at 30-40 ℃;
(2) chilled water flow process
Lithium-bromide absorption-type refrigerating machine group 3 is produced chilled water, by chilled water pump transmission & distribution, enters fan coil 4, gives air cooling-down in the room that uses air-conditioning, according to this circulation by fan coil 4; The temperature range of chilled water is at 7-12 ℃;
Meanwhile, with catch basin 5, store the chilled water produced daytime for evening, by water cold-storage mode, meet the continuous requirement moving of central air-conditioning;
(3) moisturizing and demineralized water flow process
When the soft water of whole system circulation is not enough, former water softens by water demineralizer 6, then fills in hot-water return and chilled water circuit;
In said process, the Energy Efficiency Ratio (COP) of solar energy central air-conditioning system integrating device realizes by following formula:
In formula: COP-solar energy central air-conditioning system integrating device Energy Efficiency Ratio;
Q-solar energy central air-conditioning system integrating device refrigerating capacity, kW;
W
1-solar energy vacuum tube heat collector pump group power, kW;
W
2-solar water stove pump group power, kW;
W
3-lithium-bromide absorption-type refrigerating machine pump group power, kW;
W
4-fan coil power, kW.
In solar energy central air-conditioning system integrating device Energy Efficiency Ratio formula, refrigerating capacity Q realizes by following formula:
Q=CM（T
o－T
i）
In formula: the specific heat at constant pressure of C-water, kJ/ (kg; ℃)
M-chilled-water flow, kg/s;
T
o-chilled water outlet temperature, ℃;
T
i-chilled water inlet temperature, ℃.
Pump group power W realizes by following formula:
W=ρgQH
In formula: W-pump group power, kW;
ρ-pump is carried the density of liquid, kg/m
3;
G-acceleration of gravity, m/s
2;
Q-pump is carried the flow of liquid, kg/s;
H-pump dehvery lift, m.
Claims (4)
1. a solar energy central air-conditioning system integrating device, comprises the solar energy vacuum tube heat collector and the lithium-bromide absorption-type refrigerating machine group that pipeline, consist of hot-water return; Fan coil forms chilled water circuit by pipeline and lithium-bromide absorption-type refrigerating machine group, and catch basin forms water cold-storage loop by pipeline and fan coil; It is characterized in that, this device also comprises solar water stove, and solar energy vacuum tube heat collector, solar water stove are connected by pipeline successively with lithium-bromide absorption-type refrigerating machine group.
2. device according to claim 1, is characterized in that, this device also comprises two water demineralizers, is connected in described hot-water return and chilled water circuit respectively by pipeline.
3. device according to claim 1, is characterized in that, described solar water stove is the solar energy equipment that concavees lens focus on.
4. the solar energy central air-conditioning system integrated heat exchange method based on device described in claim 1, is characterized in that, comprising:
(1) hot water flow process
Utilize the heating of solar energy vacuum tube heat collector one-level to produce low-temperature water heating, by warm water in the secondary heating generation of solar water stove, enter lithium-bromide absorption-type refrigerating machine group and drive refrigeration; Through lithium-bromide absorption-type refrigerating machine group, drive the normal-temperature water of cooling to reenter solar energy vacuum tube heat collector by water circulating pump, according to this circulation;
The temperature range of described low-temperature water heating is at 50-65 ℃; Described middle warm water's temperature range is at 65-90 ℃; The temperature range of described normal temperature hot water is at 30-40 ℃;
(2) chilled water flow process
Lithium-bromide absorption-type refrigerating machine group is produced chilled water, by chilled water pump transmission & distribution, enters fan coil, gives air cooling-down in the room that uses air-conditioning, according to this circulation by fan coil; The temperature range of chilled water is at 7-12 ℃;
Meanwhile, with catch basin, store the chilled water produced daytime for evening, by water cold-storage mode, meet the continuous requirement moving of central air-conditioning;
(3) moisturizing and demineralized water flow process
When the soft water of whole system circulation is not enough, former water softens by water demineralizer, then fills in hot-water return and chilled water circuit;
In said process, the Energy Efficiency Ratio (COP) of solar energy central air-conditioning system integrating device realizes by following formula:
In formula: COP-solar energy central air-conditioning system integrating device Energy Efficiency Ratio;
Q-solar energy central air-conditioning system integrating device refrigerating capacity, kW;
W
1-solar energy vacuum tube heat collector pump group power, kW;
W
2-solar water stove pump group power, kW;
W
3-lithium-bromide absorption-type refrigerating machine pump group power, kW;
W
4-fan coil power, kW;
In solar energy central air-conditioning system integrating device Energy Efficiency Ratio formula, refrigerating capacity Q realizes by following formula:
Q=CM（T
o－T
i）
In formula: the specific heat at constant pressure of C-water, kJ/ (kg; ℃)
M-chilled-water flow, kg/s;
T
o-chilled water outlet temperature, ℃;
T
i-chilled water inlet temperature, ℃;
Pump group power W realizes by following formula:
W=ρgQH
In formula: W-pump group power, kW;
ρ-pump is carried the density of liquid, kg/m
3;
G-acceleration of gravity, m/s
2;
Q-pump is carried the flow of liquid, kg/s;
H-pump dehvery lift, m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659208.XA CN103629769B (en) | 2013-12-06 | 2013-12-06 | Solar energy central air conditioning system integrating device and heat-exchange method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659208.XA CN103629769B (en) | 2013-12-06 | 2013-12-06 | Solar energy central air conditioning system integrating device and heat-exchange method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103629769A true CN103629769A (en) | 2014-03-12 |
| CN103629769B CN103629769B (en) | 2016-09-28 |
Family
ID=50211071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310659208.XA Active CN103629769B (en) | 2013-12-06 | 2013-12-06 | Solar energy central air conditioning system integrating device and heat-exchange method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629769B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423471A (en) * | 2015-12-31 | 2016-03-23 | 河南省电力勘测设计院 | Comprehensive utilization energy-saving system for natural resources of oil-fired thermal plant in tropical desert region |
| CN107131594A (en) * | 2017-04-18 | 2017-09-05 | 海南佩尔优科技有限公司 | A kind of water energy-storage system and its control method |
| CN107642854A (en) * | 2017-08-11 | 2018-01-30 | 广西超星太阳能科技有限公司 | A kind of new type solar energy air-conditioning |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324360A (en) * | 2007-06-11 | 2008-12-17 | 卢剑超 | Array type spherical surface focusing solar energy high temperature heat storage lithium bromide absorption type air conditioner |
| CN101813349A (en) * | 2009-02-24 | 2010-08-25 | 胡野 | Solar air conditioner |
| CN101988721A (en) * | 2009-08-04 | 2011-03-23 | 泰安市鸿雁科贸有限公司 | Novel two-stage absorption solar air conditioning system |
| JP2013002763A (en) * | 2011-06-20 | 2013-01-07 | Shin Nippon Air Technol Co Ltd | Solar heat utilizing air conditioning system |
| CN102997492A (en) * | 2012-12-03 | 2013-03-27 | 华中科技大学 | Solar hot water and air conditioner integrated heat utilization system |
| CN103277856A (en) * | 2013-05-28 | 2013-09-04 | 中国科学院广州能源研究所 | Solar seasonal cold and hot combined air conditioning system |
| CN203258781U (en) * | 2013-05-17 | 2013-10-30 | 中国航天建设集团有限公司 | Solar air conditioning system |
-
2013
- 2013-12-06 CN CN201310659208.XA patent/CN103629769B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324360A (en) * | 2007-06-11 | 2008-12-17 | 卢剑超 | Array type spherical surface focusing solar energy high temperature heat storage lithium bromide absorption type air conditioner |
| CN101813349A (en) * | 2009-02-24 | 2010-08-25 | 胡野 | Solar air conditioner |
| CN101988721A (en) * | 2009-08-04 | 2011-03-23 | 泰安市鸿雁科贸有限公司 | Novel two-stage absorption solar air conditioning system |
| JP2013002763A (en) * | 2011-06-20 | 2013-01-07 | Shin Nippon Air Technol Co Ltd | Solar heat utilizing air conditioning system |
| CN102997492A (en) * | 2012-12-03 | 2013-03-27 | 华中科技大学 | Solar hot water and air conditioner integrated heat utilization system |
| CN203258781U (en) * | 2013-05-17 | 2013-10-30 | 中国航天建设集团有限公司 | Solar air conditioning system |
| CN103277856A (en) * | 2013-05-28 | 2013-09-04 | 中国科学院广州能源研究所 | Solar seasonal cold and hot combined air conditioning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423471A (en) * | 2015-12-31 | 2016-03-23 | 河南省电力勘测设计院 | Comprehensive utilization energy-saving system for natural resources of oil-fired thermal plant in tropical desert region |
| CN107131594A (en) * | 2017-04-18 | 2017-09-05 | 海南佩尔优科技有限公司 | A kind of water energy-storage system and its control method |
| CN107642854A (en) * | 2017-08-11 | 2018-01-30 | 广西超星太阳能科技有限公司 | A kind of new type solar energy air-conditioning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103629769B (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204254930U (en) | The municipal sewage cooling heating and power generation system of coupling multiple renewable energy sources | |
| CN202501664U (en) | Photoelectric and photothermal solar energy heat pump system | |
| CN106958963A (en) | Solar cold co-generation unit based on organic Rankine bottoming cycle and lithium bromide refrigerating | |
| CN210154106U (en) | Heat pipe photovoltaic photo-thermal system based on double condensers | |
| CN202083061U (en) | Solar absorbing type air conditioning device | |
| CN103277856A (en) | Solar seasonal cold and hot combined air conditioning system | |
| CN108870602B (en) | Solar photo-thermal, photovoltaic and air conditioner integrated system | |
| CN103307803A (en) | Cold and hot water supply device by compositely utilizing energy | |
| CN106679232A (en) | Low light concentration solar energy heat/electricity/cold integrated system | |
| CN205717966U (en) | Wind light mutual complementing solar energy heat distribution system | |
| CN203336874U (en) | Cold and hot water supply device capable of compositing and utilizing energy | |
| CN114413503A (en) | Renewable energy driven zero-carbon efficient distributed energy supply system and operation method | |
| CN104456699A (en) | Air-type solar hot-water fresh air system oriented to passive houses | |
| CN104879953B (en) | Light energy, wind energy and geothermal energy comprehensive utilization device | |
| CN101929445A (en) | Distributed solar energy combined heating/cooling-power system | |
| CN103629769A (en) | Integration device of solar central air conditioning system and heat exchange method | |
| CN101178230A (en) | Multifunctional solar air-conditioning equipment | |
| CN204880478U (en) | Solar energy ground temperature hybrid air conditioning system | |
| CN101929765A (en) | A kind of solar absorption refrigeration system of separate type | |
| CN103388854B (en) | A kind of hot water supply system of comprehensive energy utilization | |
| CN206300363U (en) | The all-round system of solar energy family | |
| CN103822322A (en) | Wind and solar combined driven heat pump CCHP (Combined Cooling Heating and Power) system and work method | |
| CN204494560U (en) | A kind of solar heating, domestic hot-water's combined system | |
| CN204154023U (en) | It's inverse time tos the heat pump of accumulation of energy as low-temperature heat source a kind of utilization | |
| CN203797986U (en) | Movable solar energy application system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |