CN102706038A - Industrial waste heat type water source heat pump heat supply unit - Google Patents
Industrial waste heat type water source heat pump heat supply unit Download PDFInfo
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- CN102706038A CN102706038A CN2012102127953A CN201210212795A CN102706038A CN 102706038 A CN102706038 A CN 102706038A CN 2012102127953 A CN2012102127953 A CN 2012102127953A CN 201210212795 A CN201210212795 A CN 201210212795A CN 102706038 A CN102706038 A CN 102706038A
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Abstract
The invention discloses an industrial waste heat type water source heat pump unit. The heat supply unit comprises a plurality of sections of evaporators, a plurality of compressors, a plurality of sections of condensers and a plurality of expansion valves which are connected in sequence to form a closed circulation loop; water routes among a plurality of condensers are in series; water routes among a plurality of evaporators are in series; each section of condenser respectively passes through one of compressors and one of expansion valves to form a refrigerant circulating pipeline with one section of evaporator; and the refrigerant circulating pipes are in mutual parallel connection. According to the invention, the water source heat pump unit can make full use of the principle that reduction of the condensing temperature can reduce power consumption of the compressors when the evaporating temperatures are the same, thus effectively improving the energy efficiency ratio; therefore, the water source heat pump unit has good practicability.
Description
Technical field
The present invention relates to the water source heat pump technology field, relate in particular to a kind of industrial exhaust heat type water resource heat pump heat supply unit.
Background technology
At present; Conventional water resource heat pump product technology is comparative maturity; Generally be divided into underground ability of swimming water source heat pump units, underground loop-type water source heat pump units and water loops formula water source heat pump units, the water supply of these units is generally 45 ℃-55 ℃, and the condenser supply backwater temperature difference is not more than 11 ℃.
The energy consumption of water source heat pump heat supply system mainly comprises water source heat pump units energy consumption (being the energy consumption of compressor) and heat delivery energy consumption (being the energy consumption of delivery pump); Because industrial exhaust heat type water resource heat pump heating tube fed distance is longer; Heat delivery energy consumption proportion in total energy consumption is bigger, has influenced the whole Energy Efficiency Ratio of heating system.Therefore; Under the identical condition of desired heating load; The supply backwater temperature difference that strengthens condenser can reduce the conveying energy consumption of heat effectively; Improve the Energy Efficiency Ratio of heat pump heat distribution system, result of study shows: it is comparatively reasonable that the condenser supply backwater temperature difference of industrial exhaust heat type water resource heat pump remains between 20 ℃-30 ℃.
Summary of the invention
Technical problem to be solved by this invention is: a kind of industrial exhaust heat type water resource heat pump heat supply unit is provided, and is under 20-30 ℃ the situation in the heat supply temperature difference, can improve the Energy Efficiency Ratio of water source heat pump units effectively.
For solving the problems of the technologies described above; Technical scheme of the present invention is: industrial exhaust heat type water resource heat pump heat supply unit; Comprise the evaporimeter, compressor, condenser and the expansion valve that connect to form the closed circulation pipeline successively, said compressor and expansion valve are respectively arranged with a plurality of, and said evaporimeter, said condenser are divided into multistage respectively; Water route between the described condenser of multistage is series connection; Water route between the described evaporimeter of multistage is parallel connection, and every section described condenser is formed refrigerant circulation line through one of them compressor and one of them expansion valve and one section evaporimeter wherein respectively, and is parallel with one another between the said refrigerant circulation line.
After having adopted technique scheme; The invention has the beneficial effects as follows: owing in this heat supply unit, adopted a plurality of compressors and a plurality of expansion valve and multistage condenser, evaporimeter and every section condenser to form refrigerant circulation line through one of them compressor and one of them expansion valve with one section evaporimeter wherein respectively; So promptly adopted multi-stage condensing; Made full use of and reduced the principle that condensation temperature can reduce compressor power consumption when evaporating temperature is identical, can improve the Energy Efficiency Ratio of water resource heat pump effectively.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is the water resource heat pump structural representation of prior art;
Fig. 2 is a kind of embodiment of the present invention;
Among the figure: 1. condenser; 2. expansion valve; 3. evaporimeter; 4. compressor; 51. use the side water inlet pipe; 52. use the side outlet pipe; 61. water source side water inlet pipe; 62. water source side outlet pipe.
The specific embodiment
As shown in Figure 1, be the structural representation of the water resource heat pump of prior art, comprise evaporimeter 3, compressor 4, condenser 1 and the expansion valve 2 of the refrigerant circulation line that connects to form sealing successively; Arrow among the figure is represented the flow direction of water and cold-producing medium, wherein, is connected with on the condenser 1 and uses side water inlet pipe 51 and use side outlet pipe 52; Be connected with water source side water inlet pipe 61 and water source side outlet pipe 62 on the evaporimeter 3; Like this, the heat supply backwater flows in the condensers 1 from using side water inlet pipe 51, the cold-producing medium generation heat exchange of the HTHP of discharging with compressor 4; Supply to use side to use from using side outlet pipe 52 to flow out after absorbing heat; Condensation of refrigerant gets into evaporimeter 3 after expansion valve 2 becomes the liquid of low-temp low-pressure, and absorption is evaporated behind the heat of the source water of water source side water inlet pipe 61 inflows in evaporimeter 3, and the gas that becomes low-temp low-pressure returns the compressor air suction mouth; Side outlet pipe 62 flows out source water from the water source after emitting heat, so reciprocation cycle.The water resource heat pump of this structure is constantly transferred to heat in the cold-producing medium through the heat exchange of water and cold-producing medium from source water, transfer to from cold-producing medium and use the side water, thereby accomplish the heat supply function.
As shown in Figure 2; Be a kind of embodiment of the present invention; The difference of itself and Fig. 1 is: this embodiment comprises a plurality of (shown in the figure is three) expansion valve 2 and compressor 4; And multistage (shown in the figure being three sections) evaporimeter 3 and condenser 1, the water route between the multistage condenser 1 is series connection, the water route between the multi-stage evaporation device 3 is parallel connection; Every section condenser 1 is formed refrigerant circulation line through one of them compressor 4 and one of them expansion valve 2 and one section evaporimeter 3 wherein respectively, and is parallel with one another between the refrigerant circulation line.This structure has made full use of and has reduced the principle that condensation temperature can reduce compressor power consumption when evaporating temperature is identical.
By certain specific operation measuring and calculating as follows; Under the condition that Fig. 1 and the desired heating load of Fig. 2 equate, use that water temperatures are 30 ℃ in the side water inlet pipe 51, use that water temperatures are 60 ℃ in the side outlet pipe 52; Water temperature is 20 ℃ in the water source side water inlet pipe 61, and water temperature is 10 ℃ in the water source side outlet pipe 62:
For the water resource heat pump of Fig. 1, select three SRG-990BH compressors for use, heating capacity is 1009Kw * 3, and input power is 287Kw * 3, and the heat supply Energy Efficiency Ratio is COP=(1009Kw * 3)/(287Kw * 3)=3.52.
Water resource heat pump for Fig. 2; Select three SRG-990BH compressors for use; The first Energy Efficiency Ratio COP1=1194Kw/196Kw=6.1; The second Energy Efficiency Ratio COP2=1107Kw/236Kw=4.7, the 3rd Energy Efficiency Ratio COP3=1009Kw/287Kw=3.52, comprehensive Energy Efficiency Ratio COP=(1194Kw+1107Kw+1009Kw)/(196Kw+236Kw+287Kw)=4.6.
Therefore, the water resource heat pump of Fig. 2 is than the water resource heat pump of Fig. 1, and Energy Efficiency Ratio has improved (4.6-3.52)/3.52=30.7%, promptly adopts the multi-stage condensing technology can improve the whole Energy Efficiency Ratio of water resource heat pump effectively.
The present invention is not limited to the above-mentioned specific embodiment, and all are based on technical conceive of the present invention, and the structural improvement of having done all falls among protection scope of the present invention.
Claims (1)
1. industrial exhaust heat type water resource heat pump heat supply unit; Comprise the evaporimeter, compressor, condenser and the expansion valve that connect to form the closed circulation pipeline successively; It is characterized in that: said compressor and expansion valve are respectively arranged with a plurality of; Said evaporimeter, said condenser are divided into multistage respectively, and the water route between the described condenser of multistage is series connection, and the water route between the described evaporimeter of multistage is parallel connection; Every section described condenser is formed refrigerant circulation line through one of them compressor and one of them expansion valve and one section evaporimeter wherein respectively, and is parallel with one another between the said refrigerant circulation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127953A CN102706038A (en) | 2012-06-26 | 2012-06-26 | Industrial waste heat type water source heat pump heat supply unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127953A CN102706038A (en) | 2012-06-26 | 2012-06-26 | Industrial waste heat type water source heat pump heat supply unit |
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| CN102706038A true CN102706038A (en) | 2012-10-03 |
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| CN2012102127953A Pending CN102706038A (en) | 2012-06-26 | 2012-06-26 | Industrial waste heat type water source heat pump heat supply unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489132A (en) * | 2018-05-23 | 2018-09-04 | 江苏区宇能源有限公司 | The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station |
| CN110939973A (en) * | 2019-12-23 | 2020-03-31 | 山西省工业设备安装集团有限公司 | Gradient temperature-increasing type large-capacity heat pump heating system |
| CN114738832A (en) * | 2022-03-22 | 2022-07-12 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200968747Y (en) * | 2006-11-20 | 2007-10-31 | 尤相武 | Heat and cold supplier synchronous operation apparatus of heat pump set |
| CN201037719Y (en) * | 2007-05-25 | 2008-03-19 | 清华大学 | Hot-water heat pump set for gradual increasing water temperature |
| CN201429277Y (en) * | 2009-06-29 | 2010-03-24 | 大连葆光节能空调设备厂 | Multistage water source heat pump combined device |
| CN202630515U (en) * | 2012-06-26 | 2012-12-26 | 山东科灵空调设备有限公司 | Industrial exhaust heat type water source heat pump heat-supply unit |
-
2012
- 2012-06-26 CN CN2012102127953A patent/CN102706038A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968747Y (en) * | 2006-11-20 | 2007-10-31 | 尤相武 | Heat and cold supplier synchronous operation apparatus of heat pump set |
| CN201037719Y (en) * | 2007-05-25 | 2008-03-19 | 清华大学 | Hot-water heat pump set for gradual increasing water temperature |
| CN201429277Y (en) * | 2009-06-29 | 2010-03-24 | 大连葆光节能空调设备厂 | Multistage water source heat pump combined device |
| CN202630515U (en) * | 2012-06-26 | 2012-12-26 | 山东科灵空调设备有限公司 | Industrial exhaust heat type water source heat pump heat-supply unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489132A (en) * | 2018-05-23 | 2018-09-04 | 江苏区宇能源有限公司 | The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station |
| CN110939973A (en) * | 2019-12-23 | 2020-03-31 | 山西省工业设备安装集团有限公司 | Gradient temperature-increasing type large-capacity heat pump heating system |
| CN114738832A (en) * | 2022-03-22 | 2022-07-12 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
| CN114738832B (en) * | 2022-03-22 | 2024-06-07 | 青岛海尔空调电子有限公司 | Direct expansion type air conditioning system and control method thereof |
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Application publication date: 20121003 |