CN108180669A - A kind of closed multi-functional Analysis of Heat Pump Drying System and its control method - Google Patents
A kind of closed multi-functional Analysis of Heat Pump Drying System and its control method Download PDFInfo
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- 238000001035 drying Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010230 functional analysis Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 239000003507 refrigerant Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000005057 refrigeration Methods 0.000 claims abstract description 28
- 230000006870 function Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
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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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
本发明公开了一种封闭式多功能热泵干燥系统及其控制方法，所述系统包括：加热回路、等温干燥回路以及冷藏回路；所述加热回路、所述等温干燥回路以及所述冷藏回路由压缩机、四通阀、第一室内换热器、第二室内换热器、储液罐、第一膨胀阀、第二膨胀阀、室外换热器和所述气液分离器组成。通过控制四通阀、第一膨胀阀和第二膨胀阀的启闭，使制冷剂在不同的循环路径中循环，从而达到切换所述封闭式多功能热泵干燥系统的加热模式、等温干燥模式、冷藏模式的目的。本发明结构简单、控制方便、高效节能且具备多种运行模式，能够通过切换不同的运行模式可实现不同的功能，以满足不同的使用情况。
The invention discloses a closed multifunctional heat pump drying system and a control method thereof. The system includes: a heating circuit, an isothermal drying circuit and a refrigeration circuit; Machine, four-way valve, first indoor heat exchanger, second indoor heat exchanger, liquid storage tank, first expansion valve, second expansion valve, outdoor heat exchanger and the gas-liquid separator. By controlling the opening and closing of the four-way valve, the first expansion valve and the second expansion valve, the refrigerant circulates in different circulation paths, so as to switch the heating mode, isothermal drying mode, Purpose of Refrigerated Mode. The invention has the advantages of simple structure, convenient control, high efficiency and energy saving, multiple operating modes, and can realize different functions by switching different operating modes to meet different usage conditions.
Description
技术领域technical field
本发明涉及热泵干燥领域，尤其涉及一种封闭式多功能热泵干燥系统及其控制方法。The invention relates to the field of heat pump drying, in particular to a closed multifunctional heat pump drying system and a control method thereof.
背景技术Background technique
热泵技术作为当前一种有效的新能源技术，其特点是一种能从自然界的空气、水或土壤中获取低位热能，经过电能做功，提供可被人们所用的高位热能的技术装置。伴随着经济的发展和节能意识的提高，人们对能源节约、环境保护越来越重视，考虑到产品质量、能源节约、环境保护等方面，热泵干燥技术越来越受到人们的关注与青睐。一些研究人员将热泵干燥技术与其他干燥技术进行了对比研究，结果显示热泵干燥节能效果好，产品综合品质较好。As an effective new energy technology at present, heat pump technology is characterized by a technical device that can obtain low-level heat energy from air, water or soil in nature, and provide high-level heat energy that can be used by people through electrical work. With the development of the economy and the improvement of energy-saving awareness, people pay more and more attention to energy conservation and environmental protection. Considering product quality, energy conservation, and environmental protection, heat pump drying technology has attracted more and more attention and favor. Some researchers have compared heat pump drying technology with other drying technologies, and the results show that heat pump drying has good energy-saving effect and better overall product quality.
目前市场上的热泵干燥系统已有多种形式。如单一功能开式热泵干燥系统，虽然这种干燥系统相比传统燃煤等干燥装置有效率高、环保等优点，但是相比于闭式热泵干燥系统没有循环利用干燥介质的余热同时没有利用蒸发器的冷量除湿，除湿效率低，干燥速度慢，导致机组效率偏低，以及干燥介质的直接排放对环境有一定的影响，而且只有单一的干燥功能，应用受到限制。如单一功能闭式热泵干燥系统，这种形式的热泵干燥系统与上述开式热泵干燥系统相比更加节能环保，但是同样有功能单一的缺点，而且制冷剂侧的蒸发器始终在室内，系统在干燥的加热阶段没有利用室外空气的热量，干燥介质升温慢，机组效率偏低，而且室内循环风机的安装位置及方向导致温度较高的干燥介质始终先通过风机，不利于风机的安全运行。如多功能闭式热泵干燥系统，存在以下缺点：有两套制冷循环或换热器数量较多，系统复杂，控制较难，且初投资较高；室内循环风机的安装与上述形式二的系统有相同的缺点；无室外蒸发器，在干燥模式的加热阶段不能利用室外空气的热量，干燥介质的温升较慢，系统效率偏低。There are many forms of heat pump drying systems currently on the market. For example, the single-function open heat pump drying system, although this drying system has the advantages of high efficiency and environmental protection compared with traditional coal-fired drying devices, but compared with the closed heat pump drying system, it does not recycle the waste heat of the drying medium and does not use evaporation. The dehumidification of the cooling capacity of the device, the dehumidification efficiency is low, and the drying speed is slow, resulting in low efficiency of the unit, and the direct discharge of the drying medium has a certain impact on the environment, and there is only a single drying function, and the application is limited. Such as a single-function closed heat pump drying system, this form of heat pump drying system is more energy-saving and environmentally friendly than the above-mentioned open heat pump drying system, but it also has the disadvantage of single function, and the evaporator on the refrigerant side is always indoors, the system is in the air. The drying heating stage does not use the heat of the outdoor air, the drying medium heats up slowly, and the efficiency of the unit is low, and the installation position and direction of the indoor circulation fan cause the high temperature drying medium to always pass through the fan first, which is not conducive to the safe operation of the fan. For example, the multi-functional closed heat pump drying system has the following disadvantages: there are two sets of refrigeration cycles or a large number of heat exchangers, the system is complex, the control is difficult, and the initial investment is high; the installation of the indoor circulation fan is different from the system of the second form above. There are the same disadvantages; there is no outdoor evaporator, the heat of the outdoor air cannot be used in the heating stage of the drying mode, the temperature rise of the drying medium is slow, and the system efficiency is low.
发明内容Contents of the invention
本发明实施例所要解决的技术问题在于，提供一种封闭式多功能热泵干燥系统及其控制方法，结构简单、控制方便、高效节能且具备多种运行模式，能够通过切换不同的运行模式可实现不同的功能，以满足不同的使用情况。The technical problem to be solved by the embodiments of the present invention is to provide a closed multifunctional heat pump drying system and its control method, which has a simple structure, convenient control, high efficiency and energy saving, and has multiple operating modes, which can be realized by switching between different operating modes. Different functions to meet different use cases.
为了解决上述技术问题，本发明实施例提供了一种封闭式多功能热泵干燥系统，包括：In order to solve the above technical problems, an embodiment of the present invention provides a closed multifunctional heat pump drying system, including:
加热回路、等温干燥回路以及冷藏回路；其中，heating circuit, isothermal drying circuit and refrigeration circuit; wherein,
所述加热回路包括压缩机、四通阀、第一室内换热器、储液罐、第一膨胀阀、室外换热器和气液分离器；The heating circuit includes a compressor, a four-way valve, a first indoor heat exchanger, a liquid storage tank, a first expansion valve, an outdoor heat exchanger and a gas-liquid separator;
所述等温干燥回路包括所述压缩机、所述四通阀、所述第一室内换热器、所述储液罐、第二膨胀阀、第二室内换热器和所述气液分离器；The isothermal drying circuit includes the compressor, the four-way valve, the first indoor heat exchanger, the liquid storage tank, the second expansion valve, the second indoor heat exchanger and the gas-liquid separator ;
所述冷藏回路包括所述压缩机、所述四通阀、所述第一室内换热器、所述第二室内换热器、所述储液罐、所述第一膨胀阀、所述第二膨胀阀、所述室外换热器和所述气液分离器；The refrigeration circuit includes the compressor, the four-way valve, the first indoor heat exchanger, the second indoor heat exchanger, the liquid storage tank, the first expansion valve, the second Two expansion valves, the outdoor heat exchanger and the gas-liquid separator;
所述四通阀第一接管与所述压缩机排气口连接；所述四通阀第二接管与所述第一室内换热器入口连接；所述第一室内换热器出口与所述储液罐第一接口连接；所述储液罐第二接口通过所述第一膨胀阀与所述室外换热器入口连接；所述室外换热器出口与所述四通阀第四接管连接；所述四通阀第三接管与所述气液分离器入口连接；所述气液分离器出口与所述压缩机吸气口连接；The first connecting pipe of the four-way valve is connected to the exhaust port of the compressor; the second connecting pipe of the four-way valve is connected to the inlet of the first indoor heat exchanger; the outlet of the first indoor heat exchanger is connected to the The first port of the liquid storage tank is connected; the second port of the liquid storage tank is connected to the inlet of the outdoor heat exchanger through the first expansion valve; the outlet of the outdoor heat exchanger is connected to the fourth connecting pipe of the four-way valve The third connecting pipe of the four-way valve is connected to the inlet of the gas-liquid separator; the outlet of the gas-liquid separator is connected to the suction port of the compressor;
所述储液罐第三接口通过所述第二膨胀阀与所述第二室内换热器入口连接；所述第二室内换热器出口与所述气液分离器入口连接。The third port of the liquid storage tank is connected to the inlet of the second indoor heat exchanger through the second expansion valve; the outlet of the second indoor heat exchanger is connected to the inlet of the gas-liquid separator.
进一步地，所述第一室内换热器与所述第二室内换热器内置于一干燥箱，且所述第一室内换热器与所述第二室内换热器之间设有干燥介质流通通道；所述干燥介质流通通道中内置一安装方向为自所述第二室内换热器向所述第一室内换热器的室内风机；所述室外换热器旁置一室外风机。Further, the first indoor heat exchanger and the second indoor heat exchanger are built in a drying box, and a drying medium is arranged between the first indoor heat exchanger and the second indoor heat exchanger Circulation channel; the drying medium circulation channel is built with an indoor fan whose installation direction is from the second indoor heat exchanger to the first indoor heat exchanger; an outdoor fan is placed beside the outdoor heat exchanger.
进一步地，所述第一室内换热器、第二是室内换热器和所述室外换热器均为管式翅片换热器；其中，所述第一室内换热器为蒸发器或冷凝器；所述第二室内换热器为蒸发器；所述室外换热器为蒸发器或冷凝器。Further, the first indoor heat exchanger, the second indoor heat exchanger and the outdoor heat exchanger are tube-fin heat exchangers; wherein, the first indoor heat exchanger is an evaporator or a condenser; the second indoor heat exchanger is an evaporator; the outdoor heat exchanger is an evaporator or a condenser.
进一步地，所述四通阀第三接管分别与所述第二室内换热器出口和所述气液分离器的冷媒管相连接。Further, the third connecting pipe of the four-way valve is respectively connected with the outlet of the second indoor heat exchanger and the refrigerant pipe of the gas-liquid separator.
进一步地，所述的封闭式多功能热泵干燥系统，还包括：Further, the closed multifunctional heat pump drying system also includes:
所述第一室内换热器与所述储液罐通过第一分流头连接；所述第一膨胀阀与所述室外换热器通过第二分流头连接；所述第二膨胀阀与所述第二室内换热器通过第三分流头连接。The first indoor heat exchanger is connected to the liquid storage tank through a first split head; the first expansion valve is connected to the outdoor heat exchanger through a second split head; the second expansion valve is connected to the The second indoor heat exchanger is connected through a third splitter.
进一步地，所述第一膨胀阀和所述第二膨胀阀为电子膨胀阀或热力膨胀阀。Further, the first expansion valve and the second expansion valve are electronic expansion valves or thermal expansion valves.
进一步地，所述的封闭式多功能热泵干燥系统，还包括温度传感器，用于检测所述封闭式多功能热泵干燥系统的运行环境温度。Further, the closed multifunctional heat pump drying system further includes a temperature sensor for detecting the operating environment temperature of the closed multifunctional heat pump drying system.
本发明实施例还提供了一种封闭式多功能热泵干燥系统的控制方法，应用于如上述的封闭式多功能热泵干燥系统。The embodiment of the present invention also provides a control method for a closed multifunctional heat pump drying system, which is applied to the above closed multifunctional heat pump drying system.
所述的封闭式多功能热泵干燥系统的控制方法，包括以下步骤：The control method of the closed multifunctional heat pump drying system includes the following steps:
连通四通阀第一接管和所述四通阀第二接管，使制冷剂从所述压缩机排气口流出后，依次经所述四通阀第一接管、所述四通阀第二接管和第一室内换热器，由储液罐第一接口进入所述储液罐；Connect the first connecting pipe of the four-way valve and the second connecting pipe of the four-way valve, so that the refrigerant flows out from the exhaust port of the compressor, and passes through the first connecting pipe of the four-way valve and the second connecting pipe of the four-way valve in sequence. and the first indoor heat exchanger, entering the liquid storage tank through the first interface of the liquid storage tank;
开启第一膨胀阀并关闭第二膨胀阀，使所述制冷剂从所述储液罐第二接口流出，依次经室外换热器、所述四通阀第三接管、所述四通阀第四接管和气液分离器，流入所述压缩机吸气口；或者，Open the first expansion valve and close the second expansion valve, so that the refrigerant flows out from the second interface of the liquid storage tank, and then passes through the outdoor heat exchanger, the third connection pipe of the four-way valve, and the first port of the four-way valve. Four takeover pipes and accumulators, flowing into the compressor suction; or,
连通所述四通阀第一接管和所述四通阀第二接管，使制冷剂从所述压缩机排气口流出后，依次经所述四通阀第一接管、所述四通阀第二接管和所述第一室内换热器，由所述储液罐第一接口进入所述储液罐；Connect the first connecting pipe of the four-way valve and the second connecting pipe of the four-way valve, so that after the refrigerant flows out from the exhaust port of the compressor, it passes through the first connecting pipe of the four-way valve and the second connecting pipe of the four-way valve in sequence. The second connecting pipe and the first indoor heat exchanger enter the liquid storage tank through the first port of the liquid storage tank;
开启第二膨胀阀并关闭第一膨胀阀，使所述制冷剂从所述储液罐第三接口流出，依次经第二室内换热器和所述气液分离器，流入所述压缩机吸气口；或者，Open the second expansion valve and close the first expansion valve, so that the refrigerant flows out from the third interface of the liquid storage tank, passes through the second indoor heat exchanger and the gas-liquid separator in turn, and flows into the compressor suction mouth; or,
连通所述四通阀第一接管和第四接管并开启所述第一膨胀阀，使制冷剂从所述压缩机排气口流出后，依次经所述四通阀第一接管、所述四通阀第四接管和所述室外换热器，由所述储液罐第二接口进入所述储液罐；所述制冷剂从所述储液罐第一接口流出，依次经所述第一室内换热器、所述四通阀第二接管、所述四通阀第三接管和所述气液分离器，流入所述压缩机吸气口；Connect the first connecting pipe and the fourth connecting pipe of the four-way valve and open the first expansion valve, so that the refrigerant flows out from the exhaust port of the compressor, and then passes through the first connecting pipe of the four-way valve, the four-way valve Through the fourth connecting pipe of the valve and the outdoor heat exchanger, enter the liquid storage tank from the second interface of the liquid storage tank; the refrigerant flows out from the first interface of the liquid storage tank, and passes through the first The indoor heat exchanger, the second connecting pipe of the four-way valve, the third connecting pipe of the four-way valve and the gas-liquid separator flow into the suction port of the compressor;
开启第二膨胀阀，使所述制冷剂从所述储液罐第三接口流出，依次经第二室内换热器和所述气液分离器，流入所述压缩机吸气口。Opening the second expansion valve allows the refrigerant to flow out from the third interface of the liquid storage tank, pass through the second indoor heat exchanger and the gas-liquid separator in turn, and flow into the suction port of the compressor.
进一步地，所述第一室内换热器与所述第二室内换热器内置于一干燥箱，且所述第一室内换热器与所述第二室内换热器之间设有干燥介质流通通道；所述干燥介质流通通道中内置一安装方向为自所述第二室内换热器向所述第一室内换热器的室内风机；所述室外换热器旁置一室外风机。Further, the first indoor heat exchanger and the second indoor heat exchanger are built in a drying box, and a drying medium is arranged between the first indoor heat exchanger and the second indoor heat exchanger Circulation channel; the drying medium circulation channel is built with an indoor fan whose installation direction is from the second indoor heat exchanger to the first indoor heat exchanger; an outdoor fan is placed beside the outdoor heat exchanger.
进一步地，所述第一室内换热器、第二是室内换热器和所述室外换热器均为管式翅片换热器；其中，所述第一室内换热器为蒸发器或冷凝器；所述第二室内换热器为蒸发器；所述室外换热器为蒸发器或冷凝器。Further, the first indoor heat exchanger, the second indoor heat exchanger and the outdoor heat exchanger are tube-fin heat exchangers; wherein, the first indoor heat exchanger is an evaporator or a condenser; the second indoor heat exchanger is an evaporator; the outdoor heat exchanger is an evaporator or a condenser.
实施本发明实施例，具有如下有益效果：Implementing the embodiment of the present invention has the following beneficial effects:
本发明实施例提供的一种封闭式多功能热泵干燥系统及其控制方法，所述系统包括：加热回路、等温干燥回路以及冷藏回路；其中，所述冷藏回路包括所述压缩机、所述四通阀、所述第一室内换热器、所述第二室内换热器、所述储液罐、所述第一膨胀阀、所述第二膨胀阀、所述室外换热器和所述气液分离器。通过控制四通阀、第一膨胀阀和第二膨胀阀的启闭，使制冷剂在不同的循环路径中循环，从而达到切换所述封闭式多功能热泵干燥系统的加热模式、等温干燥模式、冷藏模式的目的。本发明结构简单、控制方便、高效节能且具备多种运行模式，能够通过切换不同的运行模式可实现不同的功能，以满足不同的使用情况。The embodiment of the present invention provides a closed multifunctional heat pump drying system and its control method, the system includes: a heating circuit, an isothermal drying circuit, and a refrigeration circuit; wherein, the refrigeration circuit includes the compressor, the four through valve, the first indoor heat exchanger, the second indoor heat exchanger, the liquid storage tank, the first expansion valve, the second expansion valve, the outdoor heat exchanger and the Gas-liquid separator. By controlling the opening and closing of the four-way valve, the first expansion valve and the second expansion valve, the refrigerant circulates in different circulation paths, so as to switch the heating mode, isothermal drying mode, Purpose of Refrigerated Mode. The invention has the advantages of simple structure, convenient control, high efficiency and energy saving, multiple operating modes, and can realize different functions by switching different operating modes to meet different usage conditions.
附图说明Description of drawings
图1是本发明第一实施例提供的一种封闭式多功能热泵干燥系统的结构示意图；Fig. 1 is a schematic structural view of a closed multifunctional heat pump drying system provided by the first embodiment of the present invention;
图2是本发明第一实施例中的加热模式的原理图；Fig. 2 is the schematic diagram of the heating mode in the first embodiment of the present invention;
图3是本发明第一实施例中的等温干燥模式的原理图；Fig. 3 is the schematic diagram of the isothermal drying mode in the first embodiment of the present invention;
图4是本发明第一实施例中的冷藏模式的原理图。Fig. 4 is a schematic diagram of the refrigeration mode in the first embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明第一实施例：First embodiment of the present invention:
请参阅图1，图1是本发明第一实施例提供的一种封闭式多功能热泵干燥系统的结构示意图。所述一种封闭式多功能热泵干燥系统，包括：Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a closed multifunctional heat pump drying system provided by the first embodiment of the present invention. The closed multifunctional heat pump drying system includes:
加热回路、等温干燥回路以及冷藏回路。其中，Heating circuit, isothermal drying circuit and refrigeration circuit. in,
所述加热回路包括压缩机01、四通阀02、第一室内换热器03、储液罐04、第一膨胀阀05、室外换热器06和气液分离器07。The heating circuit includes a compressor 01 , a four-way valve 02 , a first indoor heat exchanger 03 , a liquid storage tank 04 , a first expansion valve 05 , an outdoor heat exchanger 06 and a gas-liquid separator 07 .
所述等温干燥回路包括所述压缩机01、所述四通阀02、所述第一室内换热器03、所述储液罐04、第二膨胀阀08、第二室内换热器09和所述气液分离器07。The isothermal drying circuit includes the compressor 01, the four-way valve 02, the first indoor heat exchanger 03, the liquid storage tank 04, the second expansion valve 08, the second indoor heat exchanger 09 and The gas-liquid separator 07.
所述冷藏回路包括所述压缩机01、所述四通阀02、所述第一室内换热器03、所述第二室内换热器09、所述储液罐04、所述第一膨胀阀05、所述第二膨胀阀08、所述室外换热器06和所述气液分离器07。The refrigeration circuit includes the compressor 01, the four-way valve 02, the first indoor heat exchanger 03, the second indoor heat exchanger 09, the liquid storage tank 04, the first expansion valve 05, the second expansion valve 08, the outdoor heat exchanger 06 and the gas-liquid separator 07.
在本实施例中，需要说明的是，所述的封闭式多功能热泵干燥系统，还包括温度传感器，用于检测所述封闭式多功能热泵干燥系统的运行环境温度。所述封闭式多功能热泵干燥系统根据可当前运行环境温度，通过控制四通阀02、第一膨胀阀05和第二膨胀阀08的启闭，切换所述封闭式多功能热泵干燥系统的工作模式。其中，所述工作模式包括加热回路控制的加热模式、等温干燥回路控制的等温干燥模式和冷藏回路控制的冷藏模式。In this embodiment, it should be noted that the closed multifunctional heat pump drying system further includes a temperature sensor for detecting the operating environment temperature of the closed multifunctional heat pump drying system. According to the current operating environment temperature, the closed multifunctional heat pump drying system switches the operation of the closed multifunctional heat pump drying system by controlling the opening and closing of the four-way valve 02, the first expansion valve 05 and the second expansion valve 08. model. Wherein, the working modes include a heating mode controlled by a heating circuit, an isothermal drying mode controlled by an isothermal drying circuit, and a refrigeration mode controlled by a refrigeration circuit.
所述四通阀02第一接管021与所述压缩机01排气口连接。所述四通阀02第二接管022与所述第一室内换热器03入口连接。所述第一室内换热器03出口与所述储液罐04第一接口连接。所述储液罐04第二接口通过所述第一膨胀阀05与所述室外换热器06入口连接。所述室外换热器06出口与所述四通阀02第四接管024连接。所述四通阀02第三接管023与所述气液分离器07入口连接。所述气液分离器07出口与所述压缩机01吸气口连接。The first connecting pipe 021 of the four-way valve 02 is connected to the exhaust port of the compressor 01 . The second connecting pipe 022 of the four-way valve 02 is connected to the inlet of the first indoor heat exchanger 03 . The outlet of the first indoor heat exchanger 03 is connected to the first interface of the liquid storage tank 04 . The second port of the liquid storage tank 04 is connected to the inlet of the outdoor heat exchanger 06 through the first expansion valve 05 . The outlet of the outdoor heat exchanger 06 is connected to the fourth connecting pipe 024 of the four-way valve 02 . The third connecting pipe 023 of the four-way valve 02 is connected to the inlet of the gas-liquid separator 07 . The outlet of the gas-liquid separator 07 is connected to the suction port of the compressor 01 .
所述储液罐04第三接口通过所述第二膨胀阀08与所述第二室内换热器09入口连接。所述第二室内换热器09出口与所述气液分离器07入口连接。The third port of the liquid storage tank 04 is connected to the inlet of the second indoor heat exchanger 09 through the second expansion valve 08 . The outlet of the second indoor heat exchanger 09 is connected to the inlet of the gas-liquid separator 07 .
优选地，所述第一室内换热器03与所述第二室内换热器09内置于一干燥箱，且所述第一室内换热器03与所述第二室内换热器09之间设有干燥介质流通通道；所述干燥介质流通通道中内置一安装方向为自所述第二室内换热器09向所述第一室内换热器03的室内风机13；所述室外换热器06旁置一室外风机14。Preferably, the first indoor heat exchanger 03 and the second indoor heat exchanger 09 are built in a drying box, and between the first indoor heat exchanger 03 and the second indoor heat exchanger 09 A drying medium circulation channel is provided; an indoor fan 13 with an installation direction from the second indoor heat exchanger 09 to the first indoor heat exchanger 03 is built in the drying medium circulation channel; the outdoor heat exchanger 06 sets an outdoor fan 14 aside.
在本实施例中，所述室内风机13合理的安装位置和方向，保证了风机的安全运行。In this embodiment, the reasonable installation position and direction of the indoor fan 13 ensure the safe operation of the fan.
优选地，所述的封闭式多功能热泵干燥系统，还包括：Preferably, the closed multifunctional heat pump drying system also includes:
所述第一室内换热器03与所述储液罐04通过第一分流头12连接；所述第一膨胀阀05与所述室外换热器06通过第二分流头11连接；所述第二膨胀阀08与所述第二室内换热器09通过第三分流头10连接。The first indoor heat exchanger 03 is connected to the liquid storage tank 04 through a first split head 12; the first expansion valve 05 is connected to the outdoor heat exchanger 06 through a second split head 11; The second expansion valve 08 is connected with the second indoor heat exchanger 09 through the third splitter head 10 .
在本实施例中，所述第一分流头12、所述第二分流头11和所述第三分流头10根据实际应用情况可为压降型分流头和文丘里型分液器。所述第一分流头12、所述第二分流头11和所述第三分流头10的输出口数目根据实际与之连接的蒸发器的分路数目相同。需要说明的是，分流头与膨胀阀之间的安装管段应尽可能短，避免二者之间有阀件、狭窄处或弯曲。In this embodiment, the first split head 12 , the second split head 11 and the third split head 10 may be pressure-drop type split heads or Venturi type liquid distributors according to actual application conditions. The number of outlets of the first split head 12 , the second split head 11 and the third split head 10 is the same according to the number of branches of the evaporators actually connected thereto. It should be noted that the installation pipe section between the splitter head and the expansion valve should be as short as possible to avoid valves, narrow places or bends between the two.
如图2所示，图2是本发明第一实施例中的加热模式的原理图。当所述四通阀02第一接管021和第二接管022连通，所述第一膨胀阀05开启，且所述第二膨胀阀08关闭时，所述加热回路导通，所述等温干燥回路和所述冷藏回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为加热模式。在本实施例中，需要说明的是，所述加热回路导通，具体为，制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02、所述第一室内换热器03、所述储液罐04、所述第一膨胀阀05、所述室外换热器06、所述四通阀02及所述气液分离器07，流入所述压缩机01吸气口。如图3所示，图3是本发明第一实施例中的等温干燥模式的原理图。当所述四通阀02第一接管021和第二接管022连通，所述第一膨胀阀05关闭，且所述第二膨胀阀08开启时，所述等温干燥回路导通，所述加热回路和所述冷藏回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为等温干燥模式。As shown in Fig. 2, Fig. 2 is a schematic diagram of the heating mode in the first embodiment of the present invention. When the first connecting pipe 021 and the second connecting pipe 022 of the four-way valve 02 are connected, the first expansion valve 05 is opened, and the second expansion valve 08 is closed, the heating circuit is conducted, and the isothermal drying circuit and the refrigeration circuit is not conducting. It can be understood that at this time, the working mode of the closed multifunctional heat pump drying system is heating mode. In this embodiment, it should be noted that the heating circuit is turned on, specifically, after the refrigerant flows out from the exhaust port of the compressor 01, it sequentially passes through the four-way valve 02, the first indoor exchange Heater 03, the liquid storage tank 04, the first expansion valve 05, the outdoor heat exchanger 06, the four-way valve 02 and the gas-liquid separator 07 flow into the compressor 01 mouth. As shown in FIG. 3 , FIG. 3 is a schematic diagram of the isothermal drying mode in the first embodiment of the present invention. When the first connecting pipe 021 and the second connecting pipe 022 of the four-way valve 02 are connected, the first expansion valve 05 is closed, and the second expansion valve 08 is opened, the isothermal drying circuit is conducted, and the heating circuit and the refrigeration circuit is not conducting. It can be understood that, at this time, the working mode of the closed multifunctional heat pump drying system is an isothermal drying mode.
在本实施例中，需要说明的是，所述等温干燥回路导通，具体为，制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02、所述第一室内换热器03、所述储液罐04、所述第二膨胀阀08、所述第二室内换热器09、所述四通阀02及所述气液分离器07，流入所述压缩机01吸气口。In this embodiment, it should be noted that the isothermal drying circuit is connected, specifically, after the refrigerant flows out from the exhaust port of the compressor 01, it passes through the four-way valve 02 and the first indoor chamber in sequence. The heat exchanger 03, the liquid storage tank 04, the second expansion valve 08, the second indoor heat exchanger 09, the four-way valve 02 and the gas-liquid separator 07 flow into the compressor 01 suction port.
如图4所述，图4是本发明第一实施例中的冷藏模式的原理图。当所述四通阀02第一接管021和第四接管024连通，所述第一膨胀阀05和所述第二膨胀阀08开启时，所述冷藏回路导通，所述加热回路和所述等温干燥回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为冷藏模式。As described in Fig. 4, Fig. 4 is a schematic diagram of the refrigeration mode in the first embodiment of the present invention. When the first connecting pipe 021 of the four-way valve 02 is connected to the fourth connecting pipe 024, and the first expansion valve 05 and the second expansion valve 08 are opened, the refrigeration circuit is connected, and the heating circuit and the The isothermal drying circuit is not conducting. It can be understood that, at this time, the working mode of the closed multifunctional heat pump drying system is the refrigeration mode.
在本实施例中，需要说明的是，所述冷藏回路导通，具体为，制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02、所述第一室内换热器03、流入所述储液罐04；一路制冷剂从所述储液罐04流出，依次经所述第一膨胀阀05、所述室外换热器06、所述四通阀02及所述气液分离器07，流入所述压缩机01吸气口；另一路制冷剂从所述储液罐04流出，依次经所述第二膨胀阀08、所述第二室内换热器09及所述气液分离器07，流入所述压缩机01吸气口。In this embodiment, it should be noted that the refrigeration circuit is turned on, specifically, after the refrigerant flows out from the exhaust port of the compressor 01, it passes through the four-way valve 02, the first indoor exchange The heater 03 flows into the liquid storage tank 04; one path of refrigerant flows out from the liquid storage tank 04, and passes through the first expansion valve 05, the outdoor heat exchanger 06, the four-way valve 02 and the The gas-liquid separator 07 flows into the suction port of the compressor 01; the other refrigerant flows out from the liquid storage tank 04, and passes through the second expansion valve 08, the second indoor heat exchanger 09 and The gas-liquid separator 07 flows into the suction port of the compressor 01 .
优选地，所述四通阀02第三接管023分别与所述第二室内换热器09出口和所述气液分离器07的冷媒管相连接。Preferably, the third connecting pipe 023 of the four-way valve 02 is respectively connected to the outlet of the second indoor heat exchanger 09 and the refrigerant pipe of the gas-liquid separator 07 .
优选地，所述第一室内换热器03、第二是室内换热器和所述室外换热器06均为管式翅片换热器；其中，所述第一室内换热器03为蒸发器或冷凝器；所述第二室内换热器09为蒸发器；所述室外换热器06为蒸发器或冷凝器。Preferably, the first indoor heat exchanger 03, the second indoor heat exchanger and the outdoor heat exchanger 06 are tube-fin heat exchangers; wherein, the first indoor heat exchanger 03 is An evaporator or a condenser; the second indoor heat exchanger 09 is an evaporator; the outdoor heat exchanger 06 is an evaporator or a condenser.
在本实施例中，通过四通阀02和膨胀阀的共同作用使所述封闭式多功能热泵干燥系统具备多种工作模式，如加热模式、等温干燥模式和冷藏模式，从而使所述封闭式多功能热泵干燥系统的应用范围更广，满足用户不同的要求。需要说明的是，在加热模式运行时，所述室外换热器06作为蒸发器吸收室外空气的热量，干燥介质升温快，提高了系统的效率。In this embodiment, through the joint action of the four-way valve 02 and the expansion valve, the closed multifunctional heat pump drying system has multiple working modes, such as heating mode, isothermal drying mode and refrigeration mode, so that the closed The application range of the multifunctional heat pump drying system is wider to meet the different requirements of users. It should be noted that, when running in the heating mode, the outdoor heat exchanger 06 acts as an evaporator to absorb the heat of the outdoor air, so that the temperature of the drying medium rises quickly, which improves the efficiency of the system.
优选地，所述第一膨胀阀05和所述第二膨胀阀08为电子膨胀阀或热力膨胀阀。Preferably, the first expansion valve 05 and the second expansion valve 08 are electronic expansion valves or thermal expansion valves.
本实施例提供的一种封闭式多功能热泵干燥系统，包括：加热回路、等温干燥回路以及冷藏回路；其中，所述冷藏回路包括所述压缩机01、所述四通阀02、所述第一室内换热器03、所述第二室内换热器09、所述储液罐04、所述第一膨胀阀05、所述第二膨胀阀08、所述室外换热器06和所述气液分离器07。通过控制四通阀02、第一膨胀阀05和第二膨胀阀08的启闭，使制冷剂在不同的循环路径中循环，从而达到切换所述封闭式多功能热泵干燥系统的加热模式、等温干燥模式、冷藏模式的目的。本发明结构简单、控制方便、高效节能且具备多种运行模式，能够通过切换不同的运行模式可实现不同的功能，以满足不同的使用情况。A closed multifunctional heat pump drying system provided in this embodiment includes: a heating circuit, an isothermal drying circuit, and a refrigeration circuit; wherein, the refrigeration circuit includes the compressor 01, the four-way valve 02, the first An indoor heat exchanger 03, the second indoor heat exchanger 09, the liquid storage tank 04, the first expansion valve 05, the second expansion valve 08, the outdoor heat exchanger 06 and the Gas-liquid separator 07. By controlling the opening and closing of the four-way valve 02, the first expansion valve 05, and the second expansion valve 08, the refrigerant circulates in different circulation paths, thereby achieving switching of the heating mode, isothermal The purpose of dry mode, refrigerated mode. The invention has the advantages of simple structure, convenient control, high efficiency and energy saving, multiple operating modes, and can realize different functions by switching different operating modes to meet different usage conditions.
本发明第二实施例：Second embodiment of the present invention:
本发明第二实施例提供了一种封闭式多功能热泵干燥系统的控制方法，应用于如上述的封闭式多功能热泵干燥系统。The second embodiment of the present invention provides a control method for a closed multifunctional heat pump drying system, which is applied to the above closed multifunctional heat pump drying system.
如图2所示，图2是本发明第一实施例中的加热模式的原理图。As shown in Fig. 2, Fig. 2 is a schematic diagram of the heating mode in the first embodiment of the present invention.
连通四通阀02第一接管021和所述四通阀02第二接管022，使制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02第一接管021、所述四通阀022第二接管和第一室内换热器03，由储液罐04第一接口进入所述储液罐04。Connect the first connecting pipe 021 of the four-way valve 02 and the second connecting pipe 022 of the four-way valve 02, so that the refrigerant flows out from the exhaust port of the compressor 01, and then passes through the first connecting pipe 021 of the four-way valve 02, the The second connecting pipe of the four-way valve 022 and the first indoor heat exchanger 03 enter the liquid storage tank 04 through the first port of the liquid storage tank 04 .
开启第一膨胀阀05并关闭第二膨胀阀08，使所述制冷剂从所述储液罐04第二接口流出，依次经室外换热器06、所述四通阀02第三接管023、所述四通阀02第四接管024和气液分离器07，流入所述压缩机01吸气口。Open the first expansion valve 05 and close the second expansion valve 08, so that the refrigerant flows out from the second interface of the liquid storage tank 04, and then passes through the outdoor heat exchanger 06, the third connecting pipe 023 of the four-way valve 02, The fourth connecting pipe 024 of the four-way valve 02 and the gas-liquid separator 07 flow into the suction port of the compressor 01 .
在本实施例中，当所述四通阀02第一接管021和第二接管022连通，所述第一膨胀阀05开启，且所述第二膨胀阀08关闭时，所述加热回路导通，所述等温干燥回路和所述冷藏回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为加热模式。In this embodiment, when the first connecting pipe 021 and the second connecting pipe 022 of the four-way valve 02 are connected, the first expansion valve 05 is opened, and the second expansion valve 08 is closed, the heating circuit is conducted. , the isothermal drying circuit and the refrigeration circuit are not connected. It can be understood that at this time, the working mode of the closed multifunctional heat pump drying system is heating mode.
如图3所示，图3是本发明第一实施例中的等温干燥模式的原理图。As shown in FIG. 3 , FIG. 3 is a schematic diagram of the isothermal drying mode in the first embodiment of the present invention.
连通所述四通阀02第一接管021和所述四通阀02第二接管022，使制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02第一接管021、所述四通阀02第二接管022和所述第一室内换热器03，由所述储液罐04第一接口进入所述储液罐04。Connect the first connecting pipe 021 of the four-way valve 02 with the second connecting pipe 022 of the four-way valve 02, so that the refrigerant flows out from the exhaust port of the compressor 01, and passes through the first connecting pipe 021 of the four-way valve 02 in sequence , the second connecting pipe 022 of the four-way valve 02 and the first indoor heat exchanger 03 enter the liquid storage tank 04 through the first port of the liquid storage tank 04 .
开启第二膨胀阀08并关闭第一膨胀阀05，使所述制冷剂从所述储液罐04第三接口流出，依次经第二室内换热器09和所述气液分离器07，流入所述压缩机01吸气口。Open the second expansion valve 08 and close the first expansion valve 05, so that the refrigerant flows out from the third interface of the liquid storage tank 04, passes through the second indoor heat exchanger 09 and the gas-liquid separator 07 in sequence, and flows into the The compressor 01 has a suction port.
在本实施例中，当所述四通阀02第一接管021和第二接管022连通，所述第一膨胀阀05关闭，且所述第二膨胀阀08开启时，所述等温干燥回路导通，所述加热回路和所述冷藏回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为等温干燥模式。In this embodiment, when the first connecting pipe 021 and the second connecting pipe 022 of the four-way valve 02 are connected, the first expansion valve 05 is closed, and the second expansion valve 08 is opened, the isothermal drying circuit conducts is connected, the heating circuit and the refrigeration circuit are not connected. It can be understood that, at this time, the working mode of the closed multifunctional heat pump drying system is an isothermal drying mode.
如图4所述，图4是本发明第一实施例中的冷藏模式的原理图。As described in Fig. 4, Fig. 4 is a schematic diagram of the refrigeration mode in the first embodiment of the present invention.
连通所述四通阀02第一接管021和第四接管024并开启所述第一膨胀阀05，使制冷剂从所述压缩机01排气口流出后，依次经所述四通阀02第一接管021、所述四通阀02第四接管024和所述室外换热器06，由所述储液罐04第二接口进入所述储液罐04。所述制冷剂从所述储液罐04第一接口流出，依次经所述第一室内换热器03、所述四通阀02第二接管022、所述四通阀02第三接管023和所述气液分离器07，流入所述压缩机01吸气口。Connect the first connecting pipe 021 and the fourth connecting pipe 024 of the four-way valve 02 and open the first expansion valve 05, so that the refrigerant flows out from the exhaust port of the compressor 01 and passes through the fourth connecting pipe 02 of the four-way valve 02 in sequence. A connecting pipe 021 , the fourth connecting pipe 024 of the four-way valve 02 and the outdoor heat exchanger 06 enter the liquid storage tank 04 from the second port of the liquid storage tank 04 . The refrigerant flows out from the first interface of the liquid storage tank 04, and passes through the first indoor heat exchanger 03, the second connecting pipe 022 of the four-way valve 02, the third connecting pipe 023 of the four-way valve 02 and The gas-liquid separator 07 flows into the suction port of the compressor 01 .
开启第二膨胀阀08，使所述制冷剂从所述储液罐04第三接口流出，依次经第二室内换热器09和所述气液分离器07，流入所述压缩机01吸气口。Open the second expansion valve 08, so that the refrigerant flows out from the third interface of the liquid storage tank 04, passes through the second indoor heat exchanger 09 and the gas-liquid separator 07 in sequence, and flows into the compressor 01 for suction mouth.
在本实施例中，当所述四通阀02第一接管021和第四接管024连通，所述第一膨胀阀05和所述第二膨胀阀08开启时，所述冷藏回路导通，所述加热回路和所述等温干燥回路不导通。可以理解的是，此时所述封闭式多功能热泵干燥系统的工作模式为冷藏模式。In this embodiment, when the first connecting pipe 021 and the fourth connecting pipe 024 of the four-way valve 02 are connected, and the first expansion valve 05 and the second expansion valve 08 are opened, the refrigeration circuit is conducted, so The heating circuit and the isothermal drying circuit are not connected. It can be understood that, at this time, the working mode of the closed multifunctional heat pump drying system is the refrigeration mode.
需要说明的是，所述封闭式多功能热泵干燥系统的控制方法，基于上述的封闭式多功能热泵干燥系统，还可根据温度传感器检测所述封闭式多功能热泵干燥系统的运行环境温度，通过控制四通阀02、第一膨胀阀05和第二膨胀阀08的启闭，切换所述封闭式多功能热泵干燥系统的工作模式。It should be noted that the control method of the closed multifunctional heat pump drying system is based on the above closed multifunctional heat pump drying system, and can also detect the operating environment temperature of the closed multifunctional heat pump drying system according to the temperature sensor. Control the opening and closing of the four-way valve 02, the first expansion valve 05 and the second expansion valve 08, and switch the working mode of the closed multifunctional heat pump drying system.
本实施例提供的一种封闭式多功能热泵干燥系统的控制方法，通过控制四通阀02、第一膨胀阀05和第二膨胀阀08的启闭，使制冷剂在不同的循环路径中循环，从而达到切换所述封闭式多功能热泵干燥系统的加热模式、等温干燥模式、冷藏模式的目的，以满足不同的使用情况。This embodiment provides a control method for a closed multifunctional heat pump drying system, by controlling the opening and closing of the four-way valve 02, the first expansion valve 05 and the second expansion valve 08, so that the refrigerant circulates in different circulation paths , so as to achieve the purpose of switching the heating mode, isothermal drying mode and refrigeration mode of the closed multifunctional heat pump drying system to meet different usage conditions.
以上所述是本发明的优选实施方式，应当指出，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变形，这些改进和变形也视为本发明的保护范围。The above description is 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 deformations can also be made, and these improvements and deformations are also considered Be the protection scope of the present invention.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random AccessMemory，RAM)等。Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM) and the like.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000464A (en) * | 2018-09-03 | 2018-12-14 | 李长利 | Multi-direction temperature transfer dryer |
| CN111854215A (en) * | 2019-04-24 | 2020-10-30 | 杭州三花研究院有限公司 | Heat pump system |
| CN112066034A (en) * | 2020-09-15 | 2020-12-11 | 珠海格力电器股份有限公司 | Four-way valve, heat exchange system and air conditioning unit |
| CN112197570A (en) * | 2020-10-29 | 2021-01-08 | 张勇 | Composite heat pump drying system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532745A (en) * | 2009-03-13 | 2009-09-16 | 南京天加空调设备有限公司 | Energy-saving full-function refrigeration cycle system |
| DE202011050880U1 (en) * | 2011-08-02 | 2011-09-08 | Jianliang Fan | air conditioning |
| FR2957851A1 (en) * | 2010-03-26 | 2011-09-30 | Valeo Systemes Thermiques | Heating, ventilating and/or air-conditioning device for motor vehicle, has switching unit in position in which refrigerant is flown from compressor toward internal exchanger, accumulator, evaporator, external exchanger and compressor |
| CN205048940U (en) * | 2015-09-21 | 2016-02-24 | 刘晓明 | Drying and dehumidification unit |
| CN205641301U (en) * | 2016-05-10 | 2016-10-12 | 广东美的暖通设备有限公司 | Heat pump type air conditioning system |
-
2018
- 2018-01-31 CN CN201810101283.7A patent/CN108180669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532745A (en) * | 2009-03-13 | 2009-09-16 | 南京天加空调设备有限公司 | Energy-saving full-function refrigeration cycle system |
| FR2957851A1 (en) * | 2010-03-26 | 2011-09-30 | Valeo Systemes Thermiques | Heating, ventilating and/or air-conditioning device for motor vehicle, has switching unit in position in which refrigerant is flown from compressor toward internal exchanger, accumulator, evaporator, external exchanger and compressor |
| DE202011050880U1 (en) * | 2011-08-02 | 2011-09-08 | Jianliang Fan | air conditioning |
| CN205048940U (en) * | 2015-09-21 | 2016-02-24 | 刘晓明 | Drying and dehumidification unit |
| CN205641301U (en) * | 2016-05-10 | 2016-10-12 | 广东美的暖通设备有限公司 | Heat pump type air conditioning system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000464A (en) * | 2018-09-03 | 2018-12-14 | 李长利 | Multi-direction temperature transfer dryer |
| CN111854215A (en) * | 2019-04-24 | 2020-10-30 | 杭州三花研究院有限公司 | Heat pump system |
| CN111854215B (en) * | 2019-04-24 | 2023-08-22 | 杭州三花研究院有限公司 | heat pump system |
| CN112066034A (en) * | 2020-09-15 | 2020-12-11 | 珠海格力电器股份有限公司 | Four-way valve, heat exchange system and air conditioning unit |
| CN112197570A (en) * | 2020-10-29 | 2021-01-08 | 张勇 | Composite heat pump drying system |
| CN112197570B (en) * | 2020-10-29 | 2023-08-25 | 张勇 | Composite heat pump drying system |
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