CN103148626A - Ultrahigh-rate liquid supply falling-film evaporative water chilling system - Google Patents
Ultrahigh-rate liquid supply falling-film evaporative water chilling system Download PDFInfo
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- CN103148626A CN103148626A CN2013101193331A CN201310119333A CN103148626A CN 103148626 A CN103148626 A CN 103148626A CN 2013101193331 A CN2013101193331 A CN 2013101193331A CN 201310119333 A CN201310119333 A CN 201310119333A CN 103148626 A CN103148626 A CN 103148626A
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- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 239000011552 falling film Substances 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
本发明公开了一种超倍供液降膜蒸发式冷水系统，而提供一种利用溶液泵实现超倍供液，能够提供低温冷水的系统。制冷压缩机的排气口与冷凝器的进口连接，冷凝器的出口通过节流装置与降膜蒸发器的气液进口连接，降膜蒸发器的气体出口与制冷压缩机的吸气口连接，降膜蒸发器的液体出口与溶液泵的进口连接，溶液泵的液体出口与降膜蒸发器上部的布液管路进口连接，通过布液管路向降膜蒸发器内的液体分配器供液，利用溶液泵实现超倍供液循环。本发明的冷水机组通过溶液泵的作用实现超倍供液循环，增加了制冷剂液体与换热管路的换热量，提高了换热效率，系统换热量大小便于控制，冷水出水温度可达到2℃左右，可广泛应用于需要低温冷水的空调系统。
The invention discloses a falling film evaporative cold water system with super-double liquid supply, and provides a system capable of providing low-temperature cold water by using a solution pump to realize super-double liquid supply. The exhaust port of the refrigeration compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the gas-liquid inlet of the falling film evaporator through a throttling device, the gas outlet of the falling film evaporator is connected to the suction port of the refrigeration compressor, The liquid outlet of the falling film evaporator is connected to the inlet of the solution pump, the liquid outlet of the solution pump is connected to the inlet of the liquid distribution pipeline on the upper part of the falling film evaporator, and the liquid is supplied to the liquid distributor in the falling film evaporator through the liquid distribution pipeline. Use the solution pump to achieve super double supply cycle. The water chiller of the present invention realizes a super-double liquid supply cycle through the action of the solution pump, increases the heat exchange capacity between the refrigerant liquid and the heat exchange pipeline, and improves the heat exchange efficiency. It can reach about 2°C and can be widely used in air-conditioning systems that require low-temperature cold water.
Description
技术领域technical field
本发明涉及制冷技术领域，特别是涉及一种利用溶液泵实现超倍供液的降膜蒸发式冷水系统。The invention relates to the technical field of refrigeration, in particular to a falling-film evaporation cold water system which utilizes a solution pump to realize super-doubling liquid supply.
背景技术Background technique
在空调的运行过程中，常常采用冷水机组为空调系统提供所需冷水。During the operation of the air conditioner, chillers are often used to provide the required cold water for the air conditioner system.
目前，采用壳管式蒸发器作为蒸发器的冷水机组中，蒸发器多采用干式蒸发器、满液式蒸发器和降膜式蒸发器，所输出冷水的温度在5℃以上。其中降膜式蒸发器换热效率较高。At present, in chillers using shell and tube evaporators as evaporators, dry evaporators, flooded evaporators and falling film evaporators are mostly used as evaporators, and the temperature of the output cold water is above 5°C. Among them, the falling film evaporator has a higher heat exchange efficiency.
目前的带有降膜式蒸发器的冷水机组中，供液方式是靠节流后的气液两相制冷剂直接喷淋到壳管式蒸发器的管外壁。由于节流后的气液两项制冷剂直接喷淋到管外壁，冷水出水温度完全依靠制冷剂的供液量和冷水流量来控制，冷水出蒸发器温度一般在5℃以上，不能满足更低温度冷水的供水需要，而且，换热效率有待提高。In the current water chiller with falling film evaporator, the liquid supply method is to directly spray the throttling gas-liquid two-phase refrigerant to the outer wall of the shell-and-tube evaporator. Since the gas-liquid two refrigerants after throttling are directly sprayed to the outer wall of the pipe, the temperature of the cold water outlet is completely controlled by the liquid supply volume of the refrigerant and the flow of cold water. The temperature of the cold water outlet evaporator is generally above 5°C, which cannot meet lower The temperature of cold water needs to be supplied, moreover, the heat transfer efficiency needs to be improved.
发明内容Contents of the invention
本发明的目的是针对现有技术中存在的不足，而提供一种利用溶液泵实现超倍供液，能够提供低温冷水的降膜蒸发式冷水系统。The object of the present invention is to address the deficiencies in the prior art, and to provide a falling film evaporative cold water system that utilizes a solution pump to realize super-doubling liquid supply and can provide low-temperature cold water.
为实现本发明的目的所采用的技术方案是：The technical scheme adopted for realizing the purpose of the present invention is:
一种超倍供液降膜蒸发式冷水系统，其特征在于，包括制冷压缩机、降膜蒸发器、冷凝器、节流装置和溶液泵，所述制冷压缩机的排气口与所述冷凝器的进口连接，所述冷凝器的出口通过所述节流装置与所述降膜蒸发器的气液进口连接，所述降膜蒸发器的气体出口与所述制冷压缩机的吸气口连接，所述降膜蒸发器的液体出口与所述溶液泵的进口连接，所述溶液泵的液体出口与所述降膜蒸发器上部的布液管路进口连接，通过所述布液管路向降膜蒸发器内的液体分配器供液，利用溶液泵实现超倍供液循环。A falling film evaporative cold water system with super double liquid supply is characterized in that it includes a refrigeration compressor, a falling film evaporator, a condenser, a throttling device and a solution pump, and the exhaust port of the refrigeration compressor is connected to the condensing The inlet of the condenser is connected, the outlet of the condenser is connected with the gas-liquid inlet of the falling film evaporator through the throttling device, and the gas outlet of the falling film evaporator is connected with the suction port of the refrigeration compressor , the liquid outlet of the falling film evaporator is connected to the inlet of the solution pump, and the liquid outlet of the solution pump is connected to the inlet of the liquid distribution pipeline on the upper part of the falling film evaporator, and the liquid distribution pipeline goes down through the liquid distribution pipeline. The liquid distributor in the film evaporator supplies liquid, and the solution pump is used to realize the super double supply cycle.
所述节流装置为膨胀阀、毛细管、孔板节流装置中的任一种。The throttling device is any one of an expansion valve, a capillary tube, or an orifice throttling device.
所述冷凝器为风冷冷凝器或水冷冷凝器。The condenser is an air-cooled condenser or a water-cooled condenser.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
1、本发明的冷水机组通过溶液泵的作用，可以实现超倍供液循环，从而增加了制冷剂液体与换热管路的换热量，提高了换热效率，有利于降低能耗。1. The water chiller of the present invention can achieve a super-double liquid supply cycle through the function of the solution pump, thereby increasing the heat exchange amount between the refrigerant liquid and the heat exchange pipeline, improving the heat exchange efficiency, and helping to reduce energy consumption.
2、本发明的冷水机组中，由于采用溶液泵进行制冷剂液体循环，系统换热量大小便于控制，比不采用溶液泵的冷水机组提供的冷水温度更低，冷水出水温度可达到2℃左右，可广泛应用于需要低温冷水的空调系统。2. In the water chiller of the present invention, since the solution pump is used for refrigerant liquid circulation, the amount of heat exchange of the system is easy to control, and the cold water temperature provided by the water chiller without the solution pump is lower, and the temperature of the cold water outlet can reach about 2°C , can be widely used in air-conditioning systems that require low-temperature cold water.
附图说明Description of drawings
图1所示为本发明超倍供液降膜蒸发式冷水系统原理图。Fig. 1 shows the schematic diagram of the falling film evaporative cold water system with super double supply liquid of the present invention.
图中：1.制冷压缩机，2.降膜蒸发器，3.冷凝器，4.节流装置，5.溶液泵，6.布液管路，7.液体分配器。In the figure: 1. Refrigeration compressor, 2. Falling film evaporator, 3. Condenser, 4. Throttling device, 5. Solution pump, 6. Liquid distribution pipeline, 7. Liquid distributor.
具体实施方式Detailed ways
以下结合附图和具体实施例对本发明作进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
图1所示为本发明超倍供液降膜蒸发式冷水系统原理图，包括制冷压缩机1、降膜蒸发器2、冷凝器3、节流装置4和溶液泵5，所述制冷压缩机1的排气口与所述冷凝器3的进口连接，所述冷凝器3的出口通过所述节流装置4与所述降膜蒸发器2的气液进口连接，所述降膜蒸发器2的气体出口与所述制冷压缩机1的吸气口连接，所述降膜蒸发器2的液体出口与所述溶液泵5的进口连接，所述溶液泵5的液体出口与所述降膜蒸发器上部的布液管路6进口连接，通过所述布液管路6向降膜蒸发器内的液体分配器7供液，利用溶液泵5实现超倍供液循环。Fig. 1 shows the principle diagram of the falling film evaporative cold water system with super double liquid supply of the present invention, including a refrigeration compressor 1, a falling
其中，所述节流装置为膨胀阀、毛细管、孔板节流装置中的任一种，也可以是其他节流装置。Wherein, the throttling device is any one of expansion valve, capillary tube, orifice throttling device, or other throttling devices.
所述冷凝器为风冷冷凝器或水冷冷凝器，也可以是其他形式的冷凝器。The condenser is an air-cooled condenser or a water-cooled condenser, and may also be a condenser of other forms.
所述制冷压缩机可以是将多台制冷压缩机1相互并联的形式。The refrigerating compressor may be in the form of connecting multiple refrigerating compressors 1 in parallel.
系统运行时，从所述降膜蒸发器2筒体上部回到所述制冷压缩机1的低压制冷剂蒸气经所述制冷压缩机1压缩后在所述冷凝器3中冷凝为高压制冷剂液体，经所述节流装置4节流为低压气液两相流体后进到所述降膜蒸发器2筒体中，其中低压气体制冷剂从所述降膜蒸发器2筒体上部回到所述制冷压缩机1，在所述降膜蒸发器2筒体底部的低压液体制冷剂通过所述溶液泵5、布液管路6提升至所述降膜蒸发器2筒体上部，经所述降膜蒸发器2筒体上部的液体分配器7均匀降落在所述降膜蒸发器2横管外壁形成薄膜，并蒸发吸收横管内部水流的热量，蒸发出来的制冷剂蒸气从所述降膜蒸发器2筒体上部回到所述制冷压缩机1中完成循环。由于所述溶液泵5的作用，流经所述降膜蒸发器2横管外壁的制冷剂液体量远远高于无溶液泵的制冷剂液体量，形成超倍供液循环。When the system is running, the low-pressure refrigerant vapor returned to the refrigeration compressor 1 from the upper part of the falling
本发明的冷水机组通过溶液泵的作用实现超倍供液循环，增加了制冷剂液体与换热管路的换热量，提高了换热效率。而且，系统换热量大小便于控制，冷水出水温度可达到2℃左右，可广泛应用于需要低温冷水的空调系统。The water chiller of the present invention realizes a super-double liquid supply cycle through the action of the solution pump, increases the heat exchange amount between the refrigerant liquid and the heat exchange pipeline, and improves the heat exchange efficiency. Moreover, the amount of heat exchange in the system is easy to control, and the temperature of the cold water outlet can reach about 2°C, which can be widely used in air-conditioning systems that require low-temperature cold water.
以上所述仅是本发明的优选实施方式，应当指出的是，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the protection scope of the present invention.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968622A (en) * | 2014-05-22 | 2014-08-06 | 天津商业大学 | High-concentrated feed liquid falling film evaporation refrigeration system |
| CN108722118A (en) * | 2018-05-28 | 2018-11-02 | 中石化（洛阳）科技有限公司 | A kind of low energy consumption desulfurizer regeneration method and sulfur method |
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| CN1184923A (en) * | 1996-11-19 | 1998-06-17 | 运载器有限公司 | Chiller with hybrid falling film evaporator |
| US6868695B1 (en) * | 2004-04-13 | 2005-03-22 | American Standard International Inc. | Flow distributor and baffle system for a falling film evaporator |
| CN101052854A (en) * | 2004-10-13 | 2007-10-10 | 约克国际公司 | Falling film evaporator |
| CN101191683A (en) * | 2006-11-30 | 2008-06-04 | 上海海事大学 | Jet circulation spray falling film evaporator |
| CN102853575A (en) * | 2012-08-22 | 2013-01-02 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN203216142U (en) * | 2013-04-08 | 2013-09-25 | 天津商业大学 | Multi-fold liquid supply falling film evaporative water chilling system |
-
2013
- 2013-04-08 CN CN2013101193331A patent/CN103148626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1184923A (en) * | 1996-11-19 | 1998-06-17 | 运载器有限公司 | Chiller with hybrid falling film evaporator |
| US6868695B1 (en) * | 2004-04-13 | 2005-03-22 | American Standard International Inc. | Flow distributor and baffle system for a falling film evaporator |
| CN101052854A (en) * | 2004-10-13 | 2007-10-10 | 约克国际公司 | Falling film evaporator |
| CN101191683A (en) * | 2006-11-30 | 2008-06-04 | 上海海事大学 | Jet circulation spray falling film evaporator |
| CN102853575A (en) * | 2012-08-22 | 2013-01-02 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN203216142U (en) * | 2013-04-08 | 2013-09-25 | 天津商业大学 | Multi-fold liquid supply falling film evaporative water chilling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968622A (en) * | 2014-05-22 | 2014-08-06 | 天津商业大学 | High-concentrated feed liquid falling film evaporation refrigeration system |
| CN108722118A (en) * | 2018-05-28 | 2018-11-02 | 中石化（洛阳）科技有限公司 | A kind of low energy consumption desulfurizer regeneration method and sulfur method |
| CN108722118B (en) * | 2018-05-28 | 2020-08-04 | 中石化（洛阳）科技有限公司 | Low-energy-consumption desulfurizer regeneration method and desulfurization method |
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Application publication date: 20130612 |