WO2022160340A1 - 一种具有蓄冷功能的空调装置 - Google Patents

一种具有蓄冷功能的空调装置 Download PDF

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WO2022160340A1
WO2022160340A1 PCT/CN2021/074678 CN2021074678W WO2022160340A1 WO 2022160340 A1 WO2022160340 A1 WO 2022160340A1 CN 2021074678 W CN2021074678 W CN 2021074678W WO 2022160340 A1 WO2022160340 A1 WO 2022160340A1
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refrigerant
low
pressure
ice storage
compressor
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PCT/CN2021/074678
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English (en)
French (fr)
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查晓东
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苏州必信空调有限公司
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Publication of WO2022160340A1 publication Critical patent/WO2022160340A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat

Definitions

  • the application relates to an air conditioner with a cold storage function, belonging to the technical field of refrigeration and air conditioners.
  • Refrigeration and air-conditioning consume a lot of energy during the cooling period in summer, accounting for an average of 30% to 50% of the electricity consumption of enterprises; when the temperature is high during the day, the electricity load reaches the peak at this time; and many enterprises do not operate at night, this When the electricity consumption is small, it is necessary to encourage electricity consumption to balance the load of the grid.
  • the cold storage technology is very beneficial to such conditions of use. It can be started at night when the ambient temperature is low and the electricity bill is cheap. When the temperature is high during the day, the cold energy stored at night can be released to reduce the cooling load during the day.
  • the present application mainly solves the technical problem of heavy air-conditioning load during the day and light load at night, so as to provide an air-conditioning device with a cold storage function.
  • An air conditioner with a cold storage function comprising at least one compressor, a condenser, a throttling device, a low-pressure circulating barrel, a refrigerant circulating pump, an ice storage device, a cold heat exchanger, and several switches , by changing the opening and closing state of the switch to change the refrigerant circulation path to make the cold storage device switch between the cooling mode, the ice storage storage mode and the ice storage release mode;
  • the refrigerant When the compressor is working, the refrigerant enters the compressor from the inlet, and after being compressed, it becomes a gas and enters the condenser through the outlet of the compressor and the connecting pipeline.
  • the pressure is lowered and the temperature is reduced, and it becomes a gas-liquid mixed state. It enters the low-pressure circulation barrel from the first inlet of the low-pressure circulation barrel, and the gas-liquid two-phase refrigerant is separated in the low-pressure circulation barrel.
  • the liquid refrigerant passes through the first inlet of the low-pressure circulation barrel.
  • One outlet flows out, and the pressure is boosted in the refrigerant circulating pump;
  • the refrigerant boosted by the refrigerant circulation pump flows into the cold heat exchanger, absorbs heat in the cold heat exchanger, and the liquid is partially or completely turned into gas, and then passes through the outlet of the cold heat exchanger, from The second inlet of the low-pressure circulation barrel returns to the low-pressure circulation barrel, and the gaseous refrigerant returns to the compressor through the second outlet of the low-pressure circulation barrel to form a cycle;
  • the refrigerant boosted by the refrigerant circulating pump flows into the inlet of the ice storage device, absorbs heat in the ice storage device, and the liquid is partially or completely turned into gas, and then returns to the low pressure from the second inlet of the low-pressure circulating bucket through the ice storage device.
  • the circulation barrel, the gaseous refrigerant returns to the compressor through the second outlet of the low-pressure circulation barrel to form a cycle;
  • the refrigerant in the ice storage device enters the refrigerant circulation pump, and after being pressurized by the refrigerant circulation pump, the refrigerant enters the cooling heat exchanger to absorb heat, and returns to the ice storage device to form a cycle.
  • the air-conditioning device with the cold storage function of the present application Preferably, the air-conditioning device with the cold storage function of the present application,
  • a pressure-limiting valve is also arranged on the pipeline between the cold heat exchanger and the low-pressure circulation barrel.
  • the air conditioning device with a cold storage function of the present application has simultaneous ice storage and cooling modes:
  • the refrigerant enters the compressor from the inlet, and after being compressed, becomes a high-temperature and high-pressure gas that enters the condenser through the compressor outlet and connecting pipeline, and is cooled in the condenser to become a high-pressure and medium-temperature liquid.
  • the outlet of the condenser is discharged, and the pressure is reduced and cooled at the throttling device through the connecting pipe, and becomes a low-temperature and low-pressure gas-liquid mixed state, and enters the low-pressure circulation barrel.
  • the gas-liquid two-phase refrigerant is separated in the low-pressure circulation barrel, and the liquid refrigerant passes through The low-pressure circulating barrel flows out and is boosted by the refrigerant circulating pump;
  • the compressor is an oil-free compressor.
  • the refrigerant is R134a.
  • the air conditioner with cold storage function of the present application is characterized in that the switch is a solenoid valve or an electric valve.
  • the air conditioner with a cold storage function of the present application is characterized in that, the cooling mode is performed during the period of executing the peak and valley electricity price, and the ice storage release mode is performed during the period of executing the peak electricity price.
  • An air conditioner with a cold storage function of the present application includes at least one compressor, a condenser, a throttling device, a low-pressure circulating barrel, a refrigerant circulating pump, an ice storage device, and a cold heat exchanger, and a number of switches for switching operating conditions, the device can reduce the capacity of the total refrigeration system and balance the power by using the period when cooling is not required or the period when the cost of electricity is relatively low to store ice and release the cooling during the period when cooling is required.
  • the trough stability of the output improves the utilization rate of social resources.
  • Fig. 1 is the structural representation of the cold storage device of the application
  • Fig. 2 is the process of direct refrigeration in the embodiment of the application (pipes and components without refrigerant circulation are omitted);
  • Fig. 3 is a flow chart of ice storage in the embodiment of the application (pipes and components without refrigerant circulation are omitted);
  • Fig. 4 is a flow chart of ice storage release in the embodiment of the application (pipes and components without refrigerant circulation are omitted);
  • FIG. 5 is a process of simultaneous ice storage and refrigeration in the embodiment of the application (pipes and components without refrigerant circulation are omitted).
  • This embodiment provides an air conditioner with a cold storage function. As shown in FIG. 1 , it includes at least one compressor 1 , one condenser 2 , one throttling device 3 , one low-pressure circulating barrel 4 , and one refrigerant circulating pump 5 .
  • compressor 1 In refrigeration mode and ice storage mode, compressor 1 needs to work.
  • compressor 1 When compressor 1 is working, refrigerant enters compressor 1 from the inlet, and the compressed gas becomes high-temperature and high-pressure gas through the compressor outlet and connecting pipeline to condense.
  • the condenser 2 is cooled in the condenser 2 into a high-pressure and medium-temperature liquid, which is discharged from the outlet of the condenser 2, and is depressurized and cooled at the throttling device 3 through the connecting pipe, and becomes a low-temperature and low-pressure gas-liquid mixed state.
  • the first inlet 41 of 4 enters the low-pressure circulating barrel 4, and the gas-liquid two-phase refrigerant is separated in the low-pressure circulating barrel 4, wherein the liquid refrigerant flows out through the first outlet 44 of the low-pressure circulating barrel 4, and is boosted in the refrigerant circulating pump 5 ;
  • the second switch 82 When in cooling mode (as shown in Figure 2), the second switch 82 is closed, the third switch 83 is closed, the first switch 81 is open, the fourth switch 84 is open, and the fifth switch 85 is closed:
  • the refrigerant boosted by the refrigerant circulation pump 5 flows into the cold heat exchanger 7, absorbs heat in the cold heat exchanger 7, and the liquid is partially or completely turned into gas, and then passes through the cold heat exchanger. 7. From the second inlet 43 of the low-pressure circulating barrel 4 back to the low-pressure circulating barrel 4, the gaseous refrigerant returns to the compressor through the second outlet 42 of the low-pressure circulating barrel 4 to form a cycle;
  • the first switch 81 When in the ice storage mode (as shown in FIG. 3 ), the first switch 81 is closed, the third switch 83 is closed, the second switch 82 is open, the fourth switch 84 is open, and the fifth switch 85 is open:
  • the refrigerant boosted by the refrigerant circulation pump 5 flows into the ice storage device 6, absorbs heat in the ice storage device 6, and the liquid is partially or completely turned into gas, and then passes through the ice storage device 6 from the second flow of the low-pressure circulating bucket 4.
  • the inlet 43 returns to the low-pressure circulation barrel 4, and the gaseous refrigerant returns to the compressor through the second outlet 42 of the low-pressure circulation barrel 4 to form a cycle;
  • the first switch 81 When in the ice storage release mode (as shown in FIG. 4 ), the first switch 81 is turned on, the third switch 83 is turned on, the second switch 82 is turned off, the fourth switch 84 is turned off, and the fifth switch 85 is turned on;
  • the refrigerant in the ice storage device 6 enters the refrigerant circulation pump 5, and after being pressurized by the refrigerant circulation pump 5, the refrigerant enters the cooling heat exchanger 7 to absorb heat, and returns to the ice storage device 6 , forming a cycle;
  • the cold storage device has simultaneous ice storage and refrigeration modes (as shown in Figure 5), the first switch 81 is turned on, the third switch 83 is turned off, the second switch 82 is turned on, the fourth switch 84 is turned on, and the fifth switch 85 is turned on:
  • the refrigerant enters the compressor 1 from the inlet, and the gas compressed into high temperature and high pressure enters the condenser 2 through the compressor outlet and connecting pipeline, and is cooled in the condenser 2 into a high-pressure medium-temperature gas.
  • the liquid is discharged from the outlet of the condenser 2, depressurized and cooled at the throttling device 3 through the connecting pipe, becomes a low-temperature and low-pressure gas-liquid mixed state, and enters the low-pressure circulation barrel 4, and the gas-liquid two-phase refrigerant is separated in the low-pressure circulation barrel 4. , wherein the liquid refrigerant flows out through the low-pressure circulating barrel 4 and is boosted in the refrigerant circulating pump 5;
  • the compressor 1 is preferably an oil-free compressor.
  • the refrigerant is various existing refrigerants such as R134a.
  • the cooling mode is performed during a time period when the peak-valley electricity price is enforced, and the ice storage release mode is performed during a time period when the peak-segment electricity price is enforced.
  • a pressure-limiting valve 9 is also provided on the pipeline between the cold heat exchanger 7 and the low-pressure circulation barrel 4 .
  • the switch is a solenoid valve or an electric valve.
  • the on-off of the solenoid valve or the electric valve is controlled by the control system.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

一种具有蓄冷功能的空调装置，包含至少一个压缩机（1），一个冷凝器（2），一个节流装置（3），一个低压循环桶（4），一个制冷剂循环泵（5），一个蓄冰装置（6），一个用冷换热器（7），及用于切换运行工况的若干开关。本装置通过利用不需要制冷期间或电力成本相对较低的期间进行蓄冰，在需要制冷期间放冷，可以降低总制冷系统的容量，也可以平衡电力输出的波谷稳定性，提高社会资源的利用率。

Description

一种具有蓄冷功能的空调装置 技术领域
本申请涉及一种具有蓄冷功能的空调装置，属于制冷与空调设备技术领域。
背景技术
制冷和空调在夏天制冷期间能耗巨大，平均占有企业用电量的30％～50％；而在日间高温时，此时用电负荷到达最高峰；而在晚间很多企业并不运营，此时用电量小，需要鼓励用电以平衡电网的负荷。
蓄冷技术对于这样的使用条件非常有利，可以在晚间环境温度低，电费便宜的条件下启动运行，在白天温度高的时候，将晚间储存的冷量释放，减少日间制冷的负荷。
申请内容
本申请主要是解决白天空调负荷重、夜晚负荷轻的技术问题，从而提供一种具有蓄冷功能的空调装置。
本申请解决其技术问题所采用的技术方案是：
一种具有蓄冷功能的空调装置，包含至少一个压缩机，一个冷凝器，一个节流装置，一个低压循环桶，一个制冷剂循环泵，一个蓄冰装置，一个用冷换热器，若干个开关，通过改变开关的开闭状态改变制冷剂流通通路以使蓄冷装置在制冷模式与蓄冰存储模式与蓄冰释放模式之间切换；
压缩机工作时，制冷剂从进口处进入压缩机，被压缩后成为气体经过压缩机出口及连接管路进入冷凝器，在冷凝器内被冷却成为液体，自冷凝器的出口排出，通过连接管在节流装置处降压降温，成为气液混合状态，从低压循环桶的第一入口进入低压循环桶，气液两相制冷剂在低压循环桶分离，其中液态制冷剂通过低压循环桶的第一出口流出，经过制冷剂循环泵内升压；
处于制冷模式下时：
所述制冷剂循环泵升压后的制冷剂流入用冷换热器，在用冷换热器中吸收热量，液体部分变为气体或全部变为气体，然后通过用冷换热器出口，从低压循环桶的第二入口回到低压循环桶，气态制冷剂通过低压循环桶的第二出口回到压缩机，形成循环；
处于蓄冰存储模式下时：
所述制冷剂循环泵升压后的制冷剂流入蓄冰装置进口，在蓄冰装置中吸收热量，液体部分或者全部变成气体，然后通过蓄冰装置从低压循环桶的第二入口回到低压循环桶，气态制冷剂通过低压循环桶的第二出口回到压缩机，形成循环；
处于蓄冰释放模式时；
压缩机不工作，蓄冰装置内的制冷剂进入制冷剂循环泵，制冷剂经过制冷剂循环泵加压后进入用冷换热器中吸收热量，并回到蓄冰装置，形成循环。
优选地，本申请的具有蓄冷功能的空调装置，
所述用冷换热器与低压循环桶之间的管道上还设置有限压阀。
优选地，本申请的具有蓄冷功能的空调装置，所述蓄冷装置具有同时蓄冰和制冷模式：
同时蓄冰和制冷模式下，制冷剂从进口处进入压缩机，被压缩后成为高温高压的气体经过压缩机出口及连接管路进入冷凝器，在冷凝器内被冷却成为高压中温的液体，自冷凝器的出口排出，通过连接管在节流装置处降压降温，成为低温低压的气液混合状态，进入低压循环桶，气液两相制冷剂在低压循环桶中分离，其中液态制冷剂通过低压循环桶流出，经过制冷剂循环泵内升压；
制冷剂循环泵流出的一部分制冷剂流入蓄冰装置，另一部分制冷剂流入用冷换热器，蓄冰装置和用冷换热器流出的制冷剂汇入低压循环桶，回到压缩机，形成循环。
优选地，本申请的具有蓄冷功能的空调装置，所述压缩机为无油压缩机。
优选地，本申请的蓄具有蓄冷功能的空调装置，所述制冷剂为R134a。
优选地，本申请的具有蓄冷功能的空调装置，其特征在于,所述开关为电磁阀或者电动阀。
优选地，本申请的具有蓄冷功能的空调装置，其特征在于,所述制冷模式在执行峰谷电价的时段进行，所述蓄冰释放模式在执行峰段电价的时段进行。
本申请的有益效果是：
本申请的一种具有蓄冷功能的空调装置，包含至少一个压缩机，一个冷凝器，一个节流装置，一个低压循环桶，一个制冷剂循环泵，一个蓄冰装置，一个用冷换热器，及用于切换运行工况的若干开关，本装置通过利用不需要制冷期间或电力成本相对较低的期间进行蓄冰，在需要制冷期间放冷，可以降低总制冷系统的容量，也可以平衡电力输出的波谷稳定性，提高社会资源的利用率。
附图说明
下面结合附图和实施例对本申请的技术方案进一步说明。
下面结合附图对本申请技术方案作进一步说明：
图1为本申请蓄冷装置的结构示意图；
图2为本申请实施例中直接制冷的流程(没有制冷剂流通的管路和部件被省略)；
图3为本申请实施例中蓄冰的流程(没有制冷剂流通的管路和部件被省略)；
图4为本申请实施例中蓄冰释放的流程(没有制冷剂流通的管路和部件被省略)；
图5为本申请实施例中蓄冰和制冷同时进行的流程(没有制冷剂流通的管路和部件被省略)。
1 压缩机；
2 冷凝器；
3 节流装置；
4 低压循环桶；
5 制冷剂循环泵；
6 蓄冰装置；
7 用冷换热器；
9 限压阀；
41 第一入口；
42 第二出口；
43 第二入口；
44 第一出口；
81 第一开关；
82 第二开关；
83 第三开关；
84 第四开关；
85 第五开关。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
下面将参考附图并结合实施例来详细说明本申请的技术方案。
实施例1
本实施例提供一种具有蓄冷功能的空调装置，如图1所示，包含至少一个压缩机1，一个冷凝器2，一个节流装置3，一个低压循环桶4，一个制冷剂循环泵5，一个蓄冰装置6，一个用冷换热器7，若干开关(本实施例中有5个开关)，通过改变开关的开闭状态改变制冷剂流通通路以使蓄冷装置在制冷模式(一般在白天进行)与蓄冰存储模式(一般在夜晚进行)与蓄冰释放模式(一般在白天进行)与同时蓄冰和制冷模式(一般在需要使用空调的夜晚进行)之间切换；
制冷模式和蓄冰存储模式下，压缩机1均需要工作，压缩机1工作时，制冷剂从进口处进入压缩机1，被压缩后成为高温高压的气体经过压缩机出口及连接管路进入冷凝器2，在冷凝器2内被冷却成为高压中温的液体，自冷凝器2的出口排出，通过连接管在节流装置3处降压降温，成为低温低压的气液混合状态，从低压循环桶4的第一入口41进入低压循环桶4，气液两相制冷剂在低压循环桶4分离，其中液态制冷剂通过低压循环桶4的第一出口44流出，经过制冷剂循环泵5内升压；
处于制冷模式下时(如图2所示)，第二开关82关闭，第三开关83关闭，第一开关81打开，第四开关84打开，第五开关85关闭：
所述制冷剂循环泵5升压后的制冷剂流入用冷换热器7，在用冷换热器7中吸收热量，液体部分变为气体或全部变为气体，然后通过用冷换热器7，从低压循环桶4的第二入口43回到低压循环桶4，气态制冷剂通过低压循环桶4的第二出口42回到压缩机，形成循环；
处于蓄冰存储模式下时(如图3所示)，第一开关81关闭，第三开关83关闭，第二开关82打开，第四开关84打开，第五开关85打开：
所述制冷剂循环泵5升压后的制冷剂流入蓄冰装置6，在蓄冰装置6中吸收热量，液体部分或者全部变成气体，然后通过蓄冰装置6从低压循环桶4的第二入口43回到低压循环桶4，气态制冷剂通过低压循环桶4的第二出口42回到压缩机，形成循环；
处于蓄冰释放模式时(如图4所示)，第一开关81打开，第三开关83打开，第二开关82关闭，第四开关84关闭，第五开关85打开；
压缩机1不工作，蓄冰装置6内的制冷剂进入制冷剂循环泵5，制冷剂经过制冷剂循环泵5加压后进入用冷换热器7中吸收热量，并回到蓄冰装置6，形成循环；
所述蓄冷装置具有同时蓄冰和制冷模式(如图5所示)，第一开关81打开，第三开关83关闭，第二开关82打开，第四开关84打开，第五开关85打开：
同时蓄冰和制冷模式下，制冷剂从进口处进入压缩机1，被压缩后成为高温高压的气体经过压缩机出口及连接管路进入冷凝器2，在冷凝器2内被冷却成为高压中温的液体，自冷凝器2的出口排出，通过连接管在节流装置3处降压降温，成为低温低压的气液混合状态，进入低压循环桶4，气液两相制冷剂在低压循环桶4分离，其中液态制冷剂通过低压循环桶4流出，经过制冷剂循环泵5内升压；
制冷剂循环泵5流出的一部分制冷剂流入蓄冰装置6，另一部分制冷剂流入用冷换热器7，蓄冰装置6和用冷换热器7流出的制冷剂汇入低压循环桶4，回到压缩机，形成循环。
所述压缩机1优选为无油压缩机。
所述制冷剂为R134a等各类现有的制冷剂。
所述制冷模式在执行峰谷电价的时段进行，所述蓄冰释放模式在执行峰段电价的时段进行。
所述用冷换热器7与低压循环桶4之间的管道上还设置有限压阀9。
申请日时的执行峰段电价的时段一般为8:00-22:00，执行峰谷电价的时段一般为22:00-次日8:00；所述开关为电磁阀或者电动阀。通过控制系统来控制电磁阀或者电动阀的通断。
需要理解到的是：以上所述仅是本申请的优选实施方式，文中所提方案只是便于技术人员理解的实例，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (8)

  1. 一种具有蓄冷功能的空调装置，其特征在于，包含至少一个压缩机(1)，一个冷凝器(2)，一个节流装置(3)，一个低压循环桶(4)，一个制冷剂循环泵(5)，一个蓄冰装置(6)，一个用冷换热器(7)，若干个开关，通过改变开关的开闭状态改变制冷剂流通通路以使蓄冷装置在制冷模式与蓄冰存储模式与蓄冰释放模式之间切换；
    压缩机(1)工作时，制冷剂从进口处进入压缩机(1)，被压缩后成为气体经过压缩机出口及连接管路进入冷凝器(2)，在冷凝器(2)内被冷却成为液体，自冷凝器(2)的出口排出，通过连接管在节流装置(3)处降压降温，成为气液混合状态，从低压循环桶(4)的第一入口(41)进入低压循环桶(4)，气液两相制冷剂在低压循环桶(4)分离，其中液态制冷剂通过低压循环桶(4)的第一出口(44)流出，经过制冷剂循环泵(5)内升压；
    处于制冷模式下时：
    所述制冷剂循环泵(5)升压后的制冷剂流入用冷换热器(7)，在用冷换热器(7)中吸收热量，液体部分变为气体或全部变为气体，然后通过用冷换热器(7)从低压循环桶(4)的第二入口(43)回到低压循环桶(4)，气态制冷剂通过低压循环桶(4)的第二出口(42)回到压缩机，形成循环；
    处于蓄冰存储模式下时：
    所述制冷剂循环泵(5)升压后的制冷剂流入蓄冰装置(6)，在蓄冰装置(6)中吸收热量，液体部分或者全部变成气体，然后通过蓄冰装置(6)从低压循环桶(4)的第二入口(43)回到低压循环桶(4)，气态制冷剂通过低压循环桶(4)的第二出口(42)回到压缩机，形成循环；
    处于蓄冰释放模式时；
    压缩机(1)不工作，蓄冰装置(6)内的制冷剂进入制冷剂循环泵(5)，制冷剂经过制冷剂循环泵(5)加压后进入用冷换热器(7)中吸收热量，并回到蓄冰装置(6)，形成循环。
  2. 根据权利要求1的具有蓄冷功能的空调装置，其特征在于，所述制冷模式在执行峰谷电价的时段进行，所述蓄冰释放模式在执行峰段电价的时段进行。
  3. 根据权利要求1所述的具有蓄冷功能的空调装置，其特征在于，
    所述用冷换热器(7)与低压循环桶(4)之间的管道上还设置有限压阀(9)。
  4. 根据权利要求1所述的具有蓄冷功能的空调装置，其特征在于，所述蓄冷装置具有同时蓄冰和制冷模式：
    同时蓄冰和制冷模式下，制冷剂从进口处进入压缩机(1)，被压缩后成为高温高压的气体经过压缩机出口及连接管路进入冷凝器(2)，在冷凝器(2)内被冷却成为高压中温的液体，自冷凝器(2)的出口排出，通过连接管在节流装置(3)处降压降温，成为低温低压的气液混合状态，进入低压循环桶(4)，气液两相制冷剂在低压循环桶(4)中分离，其中液态制冷剂通过低压循环桶(4) 流出，经过制冷剂循环泵(5)内升压；
    制冷剂循环泵(5)流出的一部分制冷剂流入蓄冰装置(6)，另一部分制冷剂流入用冷换热器(7)，蓄冰装置(6)和用冷换热器(7)流出的制冷剂汇入低压循环桶(4)，回到压缩机，形成循环。
  5. 根据权利要求1-4任一项所述的具有蓄冷功能的空调装置，其特征在于,所述压缩机为无油压缩机。
  6. 根据权利要求1-4任一项所述的具有蓄冷功能的空调装置，其特征在于,所述制冷剂为R134a。
  7. 根据权利要求1-6任一项所述的具有蓄冷功能的空调装置，其特征在于,所述开关为电磁阀或者电动阀。
  8. 根据权利要求1-7任一项所述的具有蓄冷功能的空调装置，其特征在于,所述制冷模式在执行峰谷电价的时段进行，所述蓄冰释放模式在执行峰段电价的时段进行。
PCT/CN2021/074678 2021-01-27 2021-02-01 一种具有蓄冷功能的空调装置 WO2022160340A1 (zh)

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