CN101338926A - Energy-saving water chilling unit - Google Patents
Energy-saving water chilling unit Download PDFInfo
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- CN101338926A CN101338926A CNA2008100608670A CN200810060867A CN101338926A CN 101338926 A CN101338926 A CN 101338926A CN A2008100608670 A CNA2008100608670 A CN A2008100608670A CN 200810060867 A CN200810060867 A CN 200810060867A CN 101338926 A CN101338926 A CN 101338926A
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Abstract
The invention discloses a novel energy-saving water chilling unit, including a compressor, a evaporator, a throttling set and a condensing unit. The condensing unit is a evaporative condenser, including a cooling tower provided with a heat elimination fan on a mouth and a system condensing tube stack extending into the cooling tower. A cooling water nozzle is arranged above the system condensing tube stack in the cooling tower. The cooling water nozzle is connected with a reservoir which is at the bottom of the cooling tower by a water pump. The invention can reduce the cooling temperature greatly, save the high-power circulating water system, reduce the field installation content, realize the integration of the refrigeration system assembly and reduce the initial cost. Less wind and cooling water is needed to realize the cooling of the refrigerant working substance, which reduces condensing pressure. Compared with the wind cooling assembly and the water chilling unit, the invention has lower blower power and water pump power and the energy efficiency is higher. Compared with the wind cooling assembly, the assembly noise of the invention can be reduced by10 to 15dBA.
Description
Technical field
The present invention relates to field of Refrigeration and Air-conditioning, be specifically related to a kind of novel energy-conserving handpiece Water Chilling Units.
Background technology
Central air-conditioning industry traditional electrical refrigeration-type handpiece Water Chilling Units form can be divided into water-cooled and air-cooled two big classes substantially at present, the application of above-mentioned two big class units on present central air-conditioning market is more extensive, as Fig. 1, be the cold water unit of traditional water, 01 is shell and tube condenser, 02 is cooling tower, condenser side adopts cooling water and heat exchanger to carry out heat exchange, cooling water after the heat absorption is taken away heat by cooling tower forced ventilation realization cooling water evaporation in the evaporation latent heat mode, when its advantage is exactly summer high temperature, can be by the cooling water of water evaporates acquisition near wet-bulb temperature, reduce condensation temperature, improve refrigerating efficiency and Energy Efficiency Ratio, but also have following shortcoming: 1, need special-purpose machine room, wasting space; 2, need cooling tower and cooling water pump are installed, because water pump institute's water requirement and lift are bigger, so corresponding pump power and blower fan of cooling tower power energy consumption are relatively large, noise is bigger; 3, need a jacket water pipe-line system and need on-the-spot the installation, difficultly realize the unit integration; As Fig. 2, be traditional wind-cooled cold-water unit, 03 is cooling fan among the figure, 04 is finned heat exchanger, and condenser side adopts forced ventilation to realize that heat exchanger and air carry out heat exchange, and its advantage need not special-purpose machine room exactly, do not need to install the cooling water pipeline system, can realize the unit integration, simple in structure, water saving, but also there are following shortcomings: 1, need big air quantity blower fan, power of fan is big, and energy consumption is big, and fan noise is bigger than normal relatively; 2, sensible heat transfer, when summer temp was high, heat exchanger effectiveness was low, the condensation temperature height, unit eer is low.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of novel energy-conserving handpiece Water Chilling Units, can solve above-mentioned two kinds of handpiece Water Chilling Units shortcomings simultaneously, keep advantage separately simultaneously, reach the purpose of energy-saving and water-saving, reduction unit noise, the saving device space, raising heat exchanger effectiveness.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of novel energy-conserving handpiece Water Chilling Units, comprise compressor, evaporimeter, throttling arrangement and condensing unit, and it is characterized in that: described condensing unit is an evaporative condenser.
Described evaporative condenser comprises that oral area is provided with the cooling tower of cooling fan and stretches into the interior system condensing pipe group of cooling tower, system condensing pipe group top in the described cooling tower is provided with water-cooling-sprayer, and described water-cooling-sprayer is communicated with by the cistern of water pump with the cooling tower bottom.
Described throttling arrangement is an electric expansion valve.
Described evaporimeter adopts flooded evaporator.
The present invention is owing to adopt technique scheme, condensing unit is an evaporative condenser, owing to adopted the evaporating type condensing technology, by condenser is directly placed cooling tower inside, can obtain to approach the cooling water temperature of wet-bulb temperature, reduce condensation temperature, saved high-power circulation again, reduce on-the-spot installation content, realized the integration of refrigeration system unit, reduced initial cost.And make full use of evaporation of water latent heat process for cooling fluid, only need less air quantity and less cooling water inflow can realize cold-producing medium working medium cooling condensation, reduced condensing pressure, compare its power of fan with air-cooled or water-cooled unit or pump power obviously reduces, the Energy Efficiency Ratio height, the unit noise is compared with air-cooled unit, can reduce by 10～15dBA.This technology has overcome the low refrigerating efficiency of air-cooled unit and the defective that the water-cooled unit needs cooling water recirculation system and special-purpose machine room, and realized that handpiece Water Chilling Units Energy Efficiency Ratio height and air-cooled unit need not the characteristics of cooling water system, be present optimized condensation technology solution.In addition, evaporimeter adopts the flooded evaporator design, and the heat-transfer pipe tube wall is fully by the submergence of liquid refrigerants institute, the restriction that the preferable two-phase of efficient is conducted heat and is not subjected to the degree of superheat, evaporating temperature can improve 3～5 ℃ than the dry type unit under the identical leaving water temperature situation, and refrigerating efficiency improves greatly.Micro computer detects the actual height of evaporimeter liquid level according to sensor, after comparing with setting height, automatically calculate the aperture of electric expansion valve, utilize the rapid adjustment of electric expansion valve, guarantee that liquid level is in perfect condition all the time in the evaporimeter, make unit all keep the highest operational efficiency in any one load point.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the system architecture schematic diagram of the cold water unit of traditional water;
Fig. 2 is the system architecture schematic diagram of traditional wind-cooled cold-water unit;
Fig. 3 is the system architecture schematic diagram of novel energy-conserving handpiece Water Chilling Units of the present invention.
The specific embodiment
As shown in Figure 3, be a kind of novel energy-conserving handpiece Water Chilling Units of the present invention, comprise compressor 1, evaporimeter 2, throttling arrangement 4 and condensing unit 3, described condensing unit is an evaporative condenser, described evaporative condenser comprises that oral area is provided with the cooling tower 31 of cooling fan 32 and stretches into the interior system condensing pipe group 33 of cooling tower, system condensing pipe group top in the described cooling tower 31 is provided with water-cooling-sprayer 34, described water-cooling-sprayer is communicated with by the cistern 36 of water pump 35 with the cooling tower bottom, described throttling arrangement 4 is an electric expansion valve, and described evaporimeter 2 adopts flooded evaporator.51 is angle valve among the figure, and 52 is reservoir, and 53 is device for drying and filtering, and 54 is liquid-sighting glass, and 55 is the liquid level sensor of flooded evaporator, and 56 is pressure switch.
Claims (5)
1, a kind of novel energy-conserving handpiece Water Chilling Units comprises compressor, evaporimeter, throttling arrangement and condensing unit, it is characterized in that: described condensing unit is an evaporative condenser.
2, according to the described a kind of novel energy-conserving handpiece Water Chilling Units of claim 1, it is characterized in that: described evaporative condenser comprises that oral area is provided with the cooling tower of cooling fan and stretches into the interior system condensing pipe group of cooling tower, system condensing pipe group top in the described cooling tower is provided with water-cooling-sprayer, and described water-cooling-sprayer is communicated with by the cistern of water pump with the cooling tower bottom.
3, according to claim 1 or 2 described a kind of novel energy-conserving handpiece Water Chilling Units, it is characterized in that: described throttling arrangement is an electric expansion valve.
4, according to claim 1 or 2 described a kind of novel energy-conserving handpiece Water Chilling Units, it is characterized in that: described evaporimeter adopts flooded evaporator.
5, according to the described a kind of novel energy-conserving handpiece Water Chilling Units of claim 3, it is characterized in that: described evaporimeter adopts flooded evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100608670A CN101338926A (en) | 2008-03-24 | 2008-03-24 | Energy-saving water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100608670A CN101338926A (en) | 2008-03-24 | 2008-03-24 | Energy-saving water chilling unit |
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| Publication Number | Publication Date |
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| CN101338926A true CN101338926A (en) | 2009-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100608670A Pending CN101338926A (en) | 2008-03-24 | 2008-03-24 | Energy-saving water chilling unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988722A (en) * | 2010-10-27 | 2011-03-23 | 郭海新 | Natural cold source cooling water chiller |
| WO2011085527A1 (en) * | 2010-01-16 | 2011-07-21 | 湖南元亨科技发展有限公司 | Integrated heat pump unit utilizing air energy and water source |
| CN102642819A (en) * | 2012-04-25 | 2012-08-22 | 新汶矿业集团有限责任公司孙村煤矿 | Cooling water circulation utilization method of mine-used nitrogen manufacturing device |
| CN103743182A (en) * | 2013-12-27 | 2014-04-23 | 上海烟草集团有限责任公司 | Method and device for cooling cigarette making machine |
| CN109678558A (en) * | 2018-12-06 | 2019-04-26 | 天津五洲同创空调制冷设备有限公司 | A kind of cooling processing unit poured for oil depot building building cement |
| CN110160280A (en) * | 2019-06-18 | 2019-08-23 | 浙江国祥股份有限公司 | The evaporating condensation type water cooler of carrying liqs device for cooling |
| CN114135983A (en) * | 2021-11-19 | 2022-03-04 | 国网山东省电力公司电力科学研究院 | Water cooling unit and air cooling heat pump unit combined optimization scheduling method and system |
-
2008
- 2008-03-24 CN CNA2008100608670A patent/CN101338926A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011085527A1 (en) * | 2010-01-16 | 2011-07-21 | 湖南元亨科技发展有限公司 | Integrated heat pump unit utilizing air energy and water source |
| CN101988722A (en) * | 2010-10-27 | 2011-03-23 | 郭海新 | Natural cold source cooling water chiller |
| CN102642819A (en) * | 2012-04-25 | 2012-08-22 | 新汶矿业集团有限责任公司孙村煤矿 | Cooling water circulation utilization method of mine-used nitrogen manufacturing device |
| CN103743182A (en) * | 2013-12-27 | 2014-04-23 | 上海烟草集团有限责任公司 | Method and device for cooling cigarette making machine |
| CN109678558A (en) * | 2018-12-06 | 2019-04-26 | 天津五洲同创空调制冷设备有限公司 | A kind of cooling processing unit poured for oil depot building building cement |
| CN110160280A (en) * | 2019-06-18 | 2019-08-23 | 浙江国祥股份有限公司 | The evaporating condensation type water cooler of carrying liqs device for cooling |
| CN114135983A (en) * | 2021-11-19 | 2022-03-04 | 国网山东省电力公司电力科学研究院 | Water cooling unit and air cooling heat pump unit combined optimization scheduling method and system |
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Owner name: ZHEJIANG DUNAN MECHANICAL + ELECTRICAL SCIENCE CO. Free format text: FORMER OWNER: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD., ZHEJIANG PROV. Effective date: 20090508 |
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Effective date of registration: 20090508 Address after: Zhejiang City, Zhuji province shop Town Industrial Zone postal code: 311835 Applicant after: Zhejiang Dunan Electromechanical Technology Co.,Ltd. Address before: Zhejiang City, Zhuji Province town industrial zone Zhejiang shield ANN artificial environmental equipment Limited by Share Ltd, zip code: 311835 Applicant before: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. |
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Open date: 20090107 |