CN103344067A - 一种低温涡旋并联压缩冷凝机组 - Google Patents

一种低温涡旋并联压缩冷凝机组 Download PDF

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CN103344067A
CN103344067A CN2013102385733A CN201310238573A CN103344067A CN 103344067 A CN103344067 A CN 103344067A CN 2013102385733 A CN2013102385733 A CN 2013102385733A CN 201310238573 A CN201310238573 A CN 201310238573A CN 103344067 A CN103344067 A CN 103344067A
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outlet
heat exchanger
expansion valve
compressor bank
flow process
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CN103344067B (zh
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黄涛
李世岗
王小军
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JIANGSU KELIDE REFRIGERATION EQUIPMENT Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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Abstract

本发明涉及一种低温涡旋并联压缩冷凝机组,压缩机组依次经分离器、冷凝器和储液器连接板式换热器第一流程的进口,第一流程的出口依次连接制冷负载和压缩机组吸气进口,板式换热器的第二流程的进口经辅管路连接第一流程的出口,辅管路上设有电子膨胀阀,第二流程的出口经温度传感器和压力传感器连接压缩机组吸气进口,温度传感器和压力传感器传感器连接电子膨胀阀。在冷凝器与制冷负载间增设一板式换热器,制冷剂分别经主、辅管路送至板式换热器第一、二流程,制冷剂由辅管路电子膨胀阀降压在第二流程中对第一流程进行吸热,提高了流经第一流程中的制冷剂过冷度,提升了设备的制冷量和能效比,达到节能环保的目的。

Description

一种低温涡旋并联压缩冷凝机组
技术领域
本发明涉及一种压缩冷凝机组,特别是一种低温涡旋并联压缩冷凝机组。
背景技术
一般制冷系统是由压缩机、冷凝器、节流元件、蒸发器等组成的封闭系统,封闭系统内充注适量制冷剂,在压缩机作用下,制冷剂通过压缩机压缩后经冷凝器、节流元件和蒸发器返回压缩机,制冷剂在蒸发器内进行热交换,实现了冷凝器排热、蒸发器吸热的制冷过程。蒸发器在低蒸发温度运行时,压缩机压缩比增大,输气量及能效比大幅度下降,同时压缩机的排气温度较高,影响制冷系统运行安全性。
发明内容
本发明的目的在于提供了一种结构简单,节能、高效,运行稳定的低温涡旋并联压缩冷凝机组。
为了达到上述目的,本发明采用的技术方案是:一种低温涡旋并联压缩冷凝机组,包括压缩机组、油气分离器、冷凝器和储液器,压缩机组、油气分离器、冷凝器和储液器依次连接,其技术特点是还包括一板式换热器,板式换热器的第一流程的进口经主管路连接储液器出口,第一流程的出口依次连接制冷负载和压缩机组吸气进口,板式换热器的第二流程的进口经辅管路连接第一流程的出口,辅管路上设有电子膨胀阀,第二流程的出口经温度传感器和压力传感器连接压缩机组吸气进口,温度传感器和压力传感器传感器连接电子膨胀阀。
所述压缩机组吸气进口包括连通制冷负载的多台压缩机的吸气口和连通第二流程出口的多台压缩机的中间级吸气口,板式换热器第一流程的出口依次连接制冷负载和压缩机组吸气口,第二流程的出口连接压缩机组中间级吸气口。
压缩机压缩后的制冷剂经冷凝器冷凝,由储液器分别经主、辅管路送至板式换热器,制冷剂经主管路由第一流程送至制冷负载,制冷剂经辅管路进入第二流程时经电子膨胀阀降压成低压低温冷媒,低压低温冷媒在板式换热器中与制冷剂进行预热换热,回到压缩机中间级吸气口,提供给压缩机进行混合压缩,增加压缩机排气量,提高压缩机效率,同时送至蒸发器的制冷剂液体温度进一步降低,制冷主回路中焓差增大,便于提高制冷效果和效率,起节能效果;电子膨胀阀由温度传感器和压力传感器探测制冷剂,通过过热度控制电子膨胀阀的阀口的大小,调控电子膨胀阀,保证了合适的中间级吸气过热度,进一步降低压缩机排气温度,确保系统运行稳定。
本发明的有益效果是:在冷凝器与制冷负载间增设一板式换热器,制冷剂分别经主、辅管路送至板式换热器第一、二流程,制冷剂由辅管路电子膨胀阀降压在第二流程中对第一流程进行吸热,提高了流经第一流程中的制冷剂过冷度,提升了设备的制冷量和能效比,达到节能环保的目的;电子膨胀阀由温度传感器和压力传感器探测第二流程出口的制冷剂压力及温度,对电子膨胀阀阀口大小进行控制,有效控制中间级吸气过热度,进一步降低压缩机排气温度,确保系统运行稳定。
附图说明
图1是本发明的结构示意图。
图中:压缩机组1,吸气口2,中间级吸气口3,油气分离器4,冷凝器5,储液器6,板式换热器7,第一流程8,第一流程进口81,第一流程出口82,第二流程9,第二流程进口91,第二流程出口92,电子膨胀阀10,温度传感器11,压力传感器12,制冷负载13,主管路14,辅管路15。
具体实施方式
下面结合附图对本发明做进一步描述。
图1所示,一种低温涡旋并联压缩冷凝机组包括压缩机组1、油气分离器4、冷凝器5、储液器6、板式换热器7、电子膨胀阀10、温度传感器11和压力传感器12。压缩机组1、油气分离器4、冷凝器5和储液器6依次连接,储液器6出口分别连接主管路14和辅管路15,主管路14连接板式换热器7第一流程8的第一流程进口81,第一流程出口81经制冷负载13连接压缩机组1的多台压缩机的吸气口2,辅管路15连接板式换热器7第二流程9的第二流程进口91,辅管路15至第二流程进口91之间设有电子膨胀阀10,第二流程出口92经温度传感器11和压力传感器12连接压缩机组1多台压缩机的中间级吸气口3,温度传感器11及压力传感器12连接电子膨胀阀10。

Claims (2)

1.一种低温涡旋并联压缩冷凝机组,包括压缩机组、油气分离器、冷凝器和储液器,压缩机组、油气分离器、冷凝器和储液器依次连接,其特征在于:还包括一板式换热器,板式换热器的第一流程的进口经主管路连接储液器出口,第一流程的出口依次连接制冷负载和压缩机组吸气进口,板式换热器的第二流程的进口经辅管路连接第一流程的出口,辅管路上设有电子膨胀阀,第二流程的出口经温度传感器和压力传感器连接压缩机组吸气进口,温度传感器和压力传感器传感器连接电子膨胀阀。
2.根据权利要求1所述的一种低温涡旋并联压缩冷凝机组,其特征是:所述压缩机组吸气进口包括连通制冷负载的多台压缩机的吸气口和连通第二流程出口的多台压缩机的中间级吸气口,板式换热器第一流程的出口依次连接制冷负载和压缩机组吸气口,第二流程的出口连接压缩机组中间级吸气口。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106765550A (zh) * 2016-11-28 2017-05-31 广东美的暖通设备有限公司 多联机系统及其压缩机的控制方法

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CN201945084U (zh) * 2010-07-01 2011-08-24 大连三洋压缩机有限公司 一种过冷油冷器和新型经济器螺杆机制冷循环系统
CN203364515U (zh) * 2013-06-17 2013-12-25 江苏科立德制冷设备有限公司 一种低温涡旋并联压缩冷凝机组

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
CN1432782A (zh) * 2002-01-10 2003-07-30 爱斯佩克股份株式会社 冷却装置及恒温装置
CN1846099A (zh) * 2003-09-05 2006-10-11 大金工业株式会社 制冷装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106765550A (zh) * 2016-11-28 2017-05-31 广东美的暖通设备有限公司 多联机系统及其压缩机的控制方法

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