技术领域technical field
本发明涉及制冷设备技术领域，特别涉及一种空调系统。The invention relates to the technical field of refrigeration equipment, in particular to an air conditioning system.
背景技术Background technique
空调中的压缩机连续工作，使得压缩机的泵体处于高温高压的环境中，继而使得制冷剂的压缩过程处于过热压缩环境中，压缩功率较高，导致制冷系统性能降低。The compressor in the air conditioner works continuously, so that the pump body of the compressor is in a high-temperature and high-pressure environment, and then the compression process of the refrigerant is in an overheated compression environment, and the compression power is high, resulting in a decrease in the performance of the refrigeration system.
为了提高性能，通常采用泵体冷却技术，即通过对泵体降温，改变泵体工作腔壁面温度，从而降低压缩指数，达到降低压缩功率的目的。In order to improve the performance, the cooling technology of the pump body is usually adopted, that is, by cooling the pump body, the temperature of the wall surface of the working chamber of the pump body is changed, thereby reducing the compression index and achieving the purpose of reducing the compression power.
目前，通常的做法是分流一部分低温低压的制冷剂到压缩机中冷却泵体，然后将吸收泵体热量的制冷剂与蒸发器出口的制冷剂混合进入泵体进行压缩。At present, the usual practice is to divert part of the low-temperature and low-pressure refrigerant to the compressor to cool the pump body, and then mix the refrigerant that absorbs the heat of the pump body with the refrigerant at the outlet of the evaporator into the pump body for compression.
但是，直接采用制冷系统内低温液态制冷剂来冷却泵体，并不能很好的改善压缩机性能。因为冷却泵体的制冷剂分流操作，导致了进入蒸发器的制冷剂流量减少，进而使得制冷量降低，并且，吸收热量的冷媒重新流回压缩机，泵体的热量仍存在于制冷系统内，影响制冷性能。也可以单独对压缩机进行散热，但是，在制热状态中，泵体产生的热量无法利用，影响了系统的制热性能。However, directly using the low-temperature liquid refrigerant in the refrigeration system to cool the pump body does not improve the performance of the compressor very well. Because of the refrigerant split operation for cooling the pump body, the flow rate of refrigerant entering the evaporator is reduced, thereby reducing the cooling capacity, and the refrigerant that absorbs heat flows back to the compressor, and the heat of the pump body still exists in the refrigeration system. affect cooling performance. It is also possible to dissipate heat from the compressor alone, but in the heating state, the heat generated by the pump body cannot be utilized, which affects the heating performance of the system.
因此，如何提高制冷及制热性能，是本技术领域人员亟待解决的问题。Therefore, how to improve the cooling and heating performance is an urgent problem to be solved by those skilled in the art.
发明内容Contents of the invention
有鉴于此，本发明提供了一种空调系统，以提高其制冷及制热性能。In view of this, the present invention provides an air conditioning system to improve its cooling and heating performance.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种空调系统，包括压缩机及蒸发器，还包括：用于室内制冷的制冷冷凝器及用于冷却所述压缩机泵体的泵体冷凝器；An air-conditioning system, including a compressor and an evaporator, and also includes: a refrigeration condenser for indoor refrigeration and a pump body condenser for cooling the pump body of the compressor;
所述压缩机、所述制冷冷凝器及所述蒸发器形成用于对室内冷却的主路循环回路，所述制冷冷凝器的一个开口与所述蒸发器的一个开口连通；所述泵体冷凝器的出口与所述压缩机的泵体冷却入口连通，所述泵体冷凝器的入口与所述压缩机的泵体冷却出口连通，形成用于对泵体冷却的泵体冷却循环回路；The compressor, the refrigeration condenser and the evaporator form a main circulation loop for indoor cooling, one opening of the refrigeration condenser communicates with one opening of the evaporator; the pump body condenses The outlet of the device is communicated with the pump body cooling inlet of the compressor, and the inlet of the pump body condenser is communicated with the pump body cooling outlet of the compressor, forming a pump body cooling circulation loop for cooling the pump body;
还包括控制所述制冷冷凝器的另一个开口与所述泵体冷凝器的入口之间及所述泵体冷却出口与所述压缩机的入口之间同时通断的切换组件。It also includes a switch assembly for controlling the simultaneous on-off between the other opening of the refrigeration condenser and the inlet of the pump body condenser, and between the cooling outlet of the pump body and the inlet of the compressor.
优选地，上述空调系统中，所述空调系统包括用于制热及制冷切换的第一四通阀，所述第一四通阀的第一D管口与所述压缩机的出口端连通，其第一C管口与所述蒸发器的另一个开口连通，其第一S管口与所述压缩机的进口端连通；Preferably, in the above-mentioned air-conditioning system, the air-conditioning system includes a first four-way valve for switching between heating and cooling, the first D pipe of the first four-way valve communicates with the outlet port of the compressor, Its first C nozzle communicates with another opening of the evaporator, and its first S nozzle communicates with the inlet end of the compressor;
所述切换组件为第二四通阀；所述第二四通阀的第二D管口与所述第一四通阀的第一E管口连通，其第二C管口与所述压缩机的泵体冷却出口连通，其第二S管口与所述泵体冷凝器的进口连通，其第二E管口与所述制冷冷凝器的另一个开口连通。The switching assembly is a second four-way valve; the second D pipe port of the second four-way valve communicates with the first E pipe port of the first four-way valve, and its second C pipe port communicates with the compressor The cooling outlet of the pump body of the machine is connected, the second S pipe port is connected with the inlet of the pump body condenser, and the second E pipe port is connected with the other opening of the refrigeration condenser.
优选地，上述空调系统中，所述空调系统包括用于制热及制冷切换的第一四通阀，所述第一四通阀的第一D管口与所述压缩机的出口端连通，其第一C管口与所述蒸发器的另一个开口连通，其第一S管口与所述压缩机的进口端连通；Preferably, in the above-mentioned air-conditioning system, the air-conditioning system includes a first four-way valve for switching between heating and cooling, the first D pipe of the first four-way valve communicates with the outlet port of the compressor, Its first C nozzle communicates with another opening of the evaporator, and its first S nozzle communicates with the inlet end of the compressor;
所述切换组件为第一三通阀及第二三通阀；The switching component is a first three-way valve and a second three-way valve;
所述第一三通阀连接所述第一四通阀的第一E管口、所述泵体冷却出口及所述泵体冷凝器的入口，所述第二三通阀连接所述第一四通阀的第一E管口、所述泵体冷凝器的入口及所述制冷冷凝器的另一个开口。The first three-way valve is connected to the first E pipe port of the first four-way valve, the cooling outlet of the pump body and the inlet of the pump body condenser, and the second three-way valve is connected to the first The first E pipe port of the four-way valve, the inlet of the pump body condenser and the other opening of the refrigeration condenser.
优选地，上述空调系统中，还包括设置于所述泵体冷却循环回路的泵送装置。Preferably, the above-mentioned air-conditioning system further includes a pumping device arranged in the pump body cooling circulation circuit.
优选地，上述空调系统中，所述泵送装置设置于所述泵体冷凝器与所述压缩机的泵体冷却入口之间。Preferably, in the above air conditioning system, the pumping device is arranged between the pump body condenser and the pump body cooling inlet of the compressor.
优选地，上述空调系统中，所述泵体冷凝器所在水平面高于所述压缩机所在水平面。Preferably, in the above air conditioning system, the water level of the pump body condenser is higher than that of the compressor.
优选地，上述空调系统中，所述泵体冷却入口在所述压缩机上的水平位置低于所述泵体冷却出口在所述压缩机上的水平位置。Preferably, in the above air conditioning system, the horizontal position of the cooling inlet of the pump body on the compressor is lower than the horizontal position of the cooling outlet of the pump body on the compressor.
优选地，上述空调系统中，所述泵体冷凝器的入口在所述泵体冷凝器上的水平位置高于所述泵体冷凝器的出口在所述泵体冷凝器上的水平位置。Preferably, in the above air conditioning system, the horizontal position of the inlet of the pump condenser on the pump condenser is higher than the horizontal position of the outlet of the pump condenser on the pump condenser.
从上述的技术方案可以看出，本发明提供的空调系统，在制冷状态时，通过控制切换组件，使制冷冷凝器的另一个开口与泵体冷凝器的入口的断开，泵体冷却出口与压缩机的入口断开，使得主路循环回路与泵体冷却循环回路相互独立运行，通过泵体冷却循环回路中的泵体冷凝器作用，对压缩机中的泵体进行冷却，使压缩指数降低，从而降低压缩机排气焓值，冷凝负荷随之降低，由于制冷冷凝器与泵体冷凝器相互独立，在确保制冷冷凝器满足室内制冷需求的同时，有效利用泵体冷凝器实现泵体冷却，从而降低了压缩功率，提高制冷性能；制热状态时，通过控制切换组件，使制冷冷凝器的另一个开口与泵体冷凝器的入口的连接，泵体冷却出口与压缩机的入口连接，由压缩机的出口流出的制冷剂依次经过蒸发器、制冷冷凝器、泵体冷凝器、泵体冷却入口及泵体冷却出口，最后流入压缩机的入口，通过上述设置，确保了制冷冷凝器与泵体冷凝器的共同作用，并且，有效利用了压缩机的泵体散热，泵体散热作为循环系统蒸发吸热的一部分，降低压缩比，提进而有效提高了制热性能。本发明提供的空调系统，提高了空调的制冷及制热能力。It can be seen from the above technical solutions that the air conditioning system provided by the present invention, in the cooling state, by controlling the switch assembly, the other opening of the refrigeration condenser is disconnected from the inlet of the pump body condenser, and the cooling outlet of the pump body is connected to the inlet of the pump body condenser. The inlet of the compressor is disconnected, so that the main circulation loop and the cooling circulation loop of the pump body operate independently of each other, and the pump body in the compressor is cooled by the pump body condenser in the cooling circulation loop of the pump body, so that the compression index is reduced , so as to reduce the exhaust enthalpy of the compressor, and the condensation load is reduced accordingly. Since the refrigeration condenser and the pump condenser are independent of each other, while ensuring that the refrigeration condenser meets the cooling needs of the room, the pump condenser can be effectively used to achieve cooling of the pump , thereby reducing the compression power and improving the refrigeration performance; in the heating state, by controlling the switching components, the other opening of the refrigeration condenser is connected to the inlet of the pump body condenser, and the cooling outlet of the pump body is connected to the inlet of the compressor. The refrigerant flowing out from the outlet of the compressor passes through the evaporator, refrigeration condenser, pump body condenser, pump body cooling inlet and pump body cooling outlet in sequence, and finally flows into the inlet of the compressor. The combined effect of the pump condenser and the effective use of the heat dissipation of the pump body of the compressor. The heat dissipation of the pump body is a part of the evaporation heat absorption of the circulation system, which reduces the compression ratio and effectively improves the heating performance. The air conditioning system provided by the invention improves the refrigeration and heating capacity of the air conditioner.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为本发明实施例提供的空调系统的制冷状态的结构示意图；Fig. 1 is a schematic structural diagram of the refrigeration state of the air conditioning system provided by the embodiment of the present invention;
图2为本发明实施例提供的空调系统的制热状态的结构示意图；Fig. 2 is a schematic structural diagram of the heating state of the air conditioning system provided by the embodiment of the present invention;
图3为本发明实施例提供的空调系统的制冷状态的另一种结构示意图；Fig. 3 is another schematic structural diagram of the refrigeration state of the air conditioning system provided by the embodiment of the present invention;
图4为本发明实施例提供的空调系统的制热状态的另一种结构示意图。Fig. 4 is another structural schematic diagram of the heating state of the air conditioning system provided by the embodiment of the present invention.
具体实施方式detailed description
本发明公开了一种空调系统，以提高其制冷及制热性能。The invention discloses an air-conditioning system to improve its cooling and heating performance.
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.
请参考图1和图2，图1为本发明实施例提供的空调系统的制冷状态的结构示意图；图2为本发明实施例提供的空调系统的制热状态的结构示意图。Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic structural diagram of the cooling state of the air conditioning system provided by an embodiment of the present invention; FIG. 2 is a schematic structural diagram of the heating state of the air conditioning system provided by an embodiment of the present invention.
本发明实施例提供了一种空调系统，包括压缩机1及蒸发器2，还包括：用于室内制冷的制冷冷凝器3及用于冷却压缩机1泵体的泵体冷凝器4；压缩机1、制冷冷凝器3及蒸发器2形成用于对室内冷却的主路循环回路，制冷冷凝器3的一个开口与蒸发器2的一个开口连通；泵体冷凝器4的出口与压缩机1的泵体冷却入口连通，泵体冷凝器4的入口与压缩机1的泵体冷却出口连通，形成用于对泵体冷却的泵体冷却循环回路；还包括切换组件，切换组件控制制冷冷凝器3的另一个开口与泵体冷凝器4的入口之间的通断及泵体冷却出口与压缩机1的入口之间的通断，在制冷冷凝器3的另一个开口与泵体冷凝器4的入口的连通时，泵体冷却出口与压缩机1的入口连通；在制冷冷凝器3的另一个开口与泵体冷凝器4的入口的断开时，泵体冷却出口与压缩机1的入口断开，进而达到控制制冷冷凝器3的另一个开口与泵体冷凝器4的入口之间及泵体冷却出口与压缩机1的入口之间的同时通断。The embodiment of the present invention provides an air conditioning system, including a compressor 1 and an evaporator 2, and also includes: a refrigeration condenser 3 for indoor refrigeration and a pump body condenser 4 for cooling the pump body of the compressor 1; 1. The refrigeration condenser 3 and the evaporator 2 form a main circulation loop for indoor cooling. An opening of the refrigeration condenser 3 communicates with an opening of the evaporator 2; the outlet of the pump body condenser 4 is connected to the outlet of the compressor 1 The cooling inlet of the pump body is connected, and the inlet of the pump body condenser 4 is connected with the cooling outlet of the pump body of the compressor 1 to form a pump body cooling circulation loop for cooling the pump body; a switching component is also included, and the switching component controls the cooling condenser 3 The connection between the other opening of the cooling condenser 3 and the inlet of the pump body condenser 4 and the connection between the cooling outlet of the pump body and the inlet of the compressor 1, between the other opening of the refrigeration condenser 3 and the connection between the pump body condenser 4 When the inlet is connected, the cooling outlet of the pump body is connected with the inlet of the compressor 1; when the other opening of the refrigeration condenser 3 is disconnected from the inlet of the condenser 4 of the pump body, the cooling outlet of the pump body is disconnected from the inlet of the compressor 1. Open, and then achieve the simultaneous on-off between the other opening of the refrigeration condenser 3 and the inlet of the pump body condenser 4 and between the cooling outlet of the pump body and the inlet of the compressor 1 .
本发明实施例提供的空调系统，在制冷状态时，通过控制切换组件，使制冷冷凝器3的另一个开口与泵体冷凝器4的入口的断开，泵体冷却出口与压缩机1的入口断开，使得主路循环回路与泵体冷却循环回路相互独立运行，通过泵体冷却循环回路中的泵体冷凝器4作用，对压缩机1中的泵体进行冷却，使压缩指数降低，从而降低压缩机排气焓值，冷凝负荷随之降低，由于制冷冷凝器3与泵体冷凝器4相互独立，在确保制冷冷凝器3满足室内制冷需求的同时，有效利用泵体冷凝器4实现泵体冷却，从而降低了压缩功率，提高制冷性能；制热状态时，通过控制切换组件，使制冷冷凝器3的另一个开口与泵体冷凝器4的入口的连接，泵体冷却出口与压缩机1的入口连接，由压缩机1的出口流出的制冷剂依次经过蒸发器2、制冷冷凝器3、泵体冷凝器4、泵体冷却入口及泵体冷却出口，最后流入压缩机1的入口，通过上述设置，确保了制冷冷凝器3与泵体冷凝器4的共同作用，并且，有效利用了压缩机1的泵体散热，泵体散热作为循环系统蒸发吸热的一部分，降低压缩比，提进而有效提高了制热性能。本发明实施例提供的空调系统，提高了空调的制冷及制热能力。In the air conditioning system provided by the embodiment of the present invention, in the cooling state, by controlling the switch assembly, the other opening of the refrigeration condenser 3 is disconnected from the inlet of the pump body condenser 4, and the cooling outlet of the pump body is connected to the inlet of the compressor 1. Disconnect, so that the main road circulation loop and the pump body cooling circulation loop operate independently of each other, and the pump body in the compressor 1 is cooled by the action of the pump body condenser 4 in the pump body cooling cycle loop, so that the compression index is reduced, thereby The enthalpy value of compressor exhaust is reduced, and the condensation load is reduced accordingly. Since the refrigeration condenser 3 and the pump body condenser 4 are independent of each other, while ensuring that the refrigeration condenser 3 meets the cooling demand of the room, the pump body condenser 4 is effectively used to realize the pump. body cooling, thereby reducing the compression power and improving refrigeration performance; in the heating state, by controlling the switching components, the other opening of the refrigeration condenser 3 is connected to the inlet of the pump body condenser 4, and the cooling outlet of the pump body is connected to the compressor The inlet of compressor 1 is connected, and the refrigerant flowing out of the outlet of compressor 1 passes through evaporator 2, refrigeration condenser 3, pump body condenser 4, pump body cooling inlet and pump body cooling outlet in sequence, and finally flows into the inlet of compressor 1, Through the above arrangement, the cooperation between the refrigeration condenser 3 and the pump body condenser 4 is ensured, and the heat dissipation of the pump body of the compressor 1 is effectively utilized. Thus, the heating performance is effectively improved. The air conditioning system provided by the embodiments of the present invention improves the cooling and heating capabilities of the air conditioner.
通过比较冷却泵体后的冷却压缩性能及隔绝泵体(即不冷却泵体)后的绝热压缩性能，压缩过程的散热量q与压缩功降低值w之和与压缩机排气焓值降低量(即冷凝负荷降低量)相等。因此，泵体的冷却要充分利用因冷凝负荷下降而产生的多余冷却能力，则不会影响制冷效果。By comparing the cooling compression performance after cooling the pump body and the adiabatic compression performance after isolating the pump body (that is, without cooling the pump body), the sum of the heat dissipation q and the reduction value of the compression work during the compression process and the reduction of the compressor exhaust enthalpy (that is, the reduction in condensation load) is equal. Therefore, the cooling of the pump body should make full use of the excess cooling capacity caused by the reduction of the condensation load, and the cooling effect will not be affected.
为了实现切换同步，在本实施例中，空调系统包括用于制热及制冷切换的第一四通阀5，第一四通阀5的第一D管口D1与压缩机的出口端连通，其第一C管口C1与蒸发器2的另一个开口连通，其第一S管口S1与压缩机1的进口端连通；切换组件为第二四通阀6；第二四通阀6的第二D管口D2与第一四通阀5的第一E管口E1连通，其第二C管口C2与压缩机1的泵体冷却出口连通，其第二S管口S2与泵体冷凝器4的进口连通，其第二E管口E2与制冷冷凝器3的另一个开口连通。In order to achieve switching synchronization, in this embodiment, the air conditioning system includes a first four-way valve 5 for switching between heating and cooling, and the first D pipe D1 of thefirst four-way valve 5 communicates with the outlet port of the compressor , its first C nozzle C1 communicates with the other opening of the evaporator 2, and its first S nozzle S1 communicates with the inlet port of the compressor 1; the switching component is the second four-way valve 6; the second four-way The second D pipe D2 of the valve6 communicates with the first E pipe E1 of thefirst four-way valve 5, itssecond C pipe C2 communicates with the cooling outlet of the pump body of the compressor 1, and its second S The pipe port S2 communicates with the inlet of the pump body condenser 4 , and its second E pipe port E2 communicates with the other opening of the refrigeration condenser 3 .
如图1所示，在制冷状态时，制冷冷凝器3的另一个开口与泵体冷凝器4的入口的断开，泵体冷却出口与压缩机1的入口断开。此时，第一四通阀5的第一D管口D1与第一E管口E1连通，第一C管口C1与第一S管口S1连通；第二四通阀6的第二D管口D2与第二E管口E2连通，第二C管口C2与第二S管口S2连通。As shown in FIG. 1 , in the cooling state, the other opening of the refrigeration condenser 3 is disconnected from the inlet of the pump body condenser 4 , and the cooling outlet of the pump body is disconnected from the inlet of the compressor 1 . At this time, the first D pipe port D1 of thefirst four-way valve 5 communicates with the first E pipe port E1, and the first C pipe portC1 communicates with thefirst S pipe port S1; the second four-way valve 6 The second D nozzle D2 communicates with the second E nozzle E2 , and the second C nozzle C2 communicates with the second S nozzle S2 .
主路循环回路中：低温低压气体a4经第一四通阀5后流入压缩机1并压缩成高温高压排气a1，再依次经过第一四通阀5与第二四通阀6后进入制冷冷凝器3，换热后形成高压液态制冷剂a2，经节流装置形成低温低压气液两相流a3进入蒸发器2，蒸发换热后形成低温低压气体a4，经第一四通阀5进入压缩机1。In the main circulation circuit: the low-temperature and low-pressure gas a4 flows into the compressor 1 through the first four-way valve 5 and is compressed into high-temperature and high-pressure exhaust gas a1, and then enters the refrigeration after passing through the first four-way valve 5 and the second four-way valve 6 in turn. The condenser 3 forms a high-pressure liquid refrigerant a2 after heat exchange, forms a low-temperature and low-pressure gas-liquid two-phase flow a3 through the throttling device, enters the evaporator 2, forms a low-temperature and low-pressure gas a4 after evaporation and heat exchange, and enters through the first four-way valve 5 compressor 1.
泵体冷却循环回路中：制冷剂液体b2由泵体冷凝器4的出口经过压缩机1的泵体冷却入口流入压缩机1，在压缩机1内吸收泵体的热量而形成制冷剂蒸汽b1，制冷剂蒸汽b1经过压缩机1的泵体冷却出口由泵体冷凝器4的入口流入，在外部冷却作用下，放出热量，凝结成制冷剂液体b2。In the cooling circuit of the pump body: the refrigerant liquid b2 flows into the compressor 1 from the outlet of the pump body condenser 4 through the pump body cooling inlet of the compressor 1, and absorbs the heat of the pump body in the compressor 1 to form a refrigerant vapor b1, Refrigerant vapor b1 passes through the cooling outlet of the pump body of the compressor 1 and flows into the inlet of the pump body condenser 4. Under the action of external cooling, it releases heat and condenses into refrigerant liquid b2.
如图2所示，制热运行时，制冷冷凝器3的另一个开口与泵体冷凝器4的入口的连接，泵体冷却出口与压缩机1的入口连接。此时，第一四通阀5的第一D管口D1与第一C管口C1连通，第一E管口E1与第一S管口S1连通；第二四通阀6的第二D管口D2与第二C管口C2连通，第二E管口E2与第二S管口S2连通。As shown in FIG. 2 , during heating operation, the other opening of the cooling condenser 3 is connected to the inlet of the pump body condenser 4 , and the cooling outlet of the pump body is connected to the inlet of the compressor 1 . At this time, the first D pipe port D1 of thefirst four-way valve 5 communicates with the first C pipe portC1 , and thefirst E pipe port E1 communicates with thefirst S pipe port S1; the second four-way valve 6 The second D nozzle D2 is in communication with the second C nozzle C2 , and the second E nozzle E2 is in communication with the second S nozzle S2 .
主路循环回路与泵体冷却循环回路连接：低温低压气体a6经压缩机1压缩成高温高压排气a1，经第一四通阀5进入蒸发器2，冷凝成为高压液态制冷剂a2，经节流装置形成低温低压气液两相流a3进入制冷冷凝器3蒸发形成一级制冷剂气体a4，经过第二四通阀6继续进入泵体冷凝器4中蒸发后形成二级制冷剂气体a5，二级制冷剂气体a5由泵体冷凝器4的出口经过压缩机1的泵体冷却入口流入压缩机1，在压缩机1内吸收泵体的热量再进一步蒸发形成低温低压气体a6，a6依次通过第二四通阀6及第一四通阀5由压缩机1的进口端进入压缩机。The main road circulation circuit is connected with the cooling circulation circuit of the pump body: the low-temperature and low-pressure gas a6 is compressed by the compressor 1 into a high-temperature and high-pressure exhaust a1, enters the evaporator 2 through the first four-way valve 5, and condenses into a high-pressure liquid refrigerant a2. The flow device forms a low-temperature and low-pressure gas-liquid two-phase flow a3, enters the refrigeration condenser 3 and evaporates to form a primary refrigerant gas a4, passes through the second four-way valve 6 and continues to enter the pump body condenser 4 to evaporate to form a secondary refrigerant gas a5, The secondary refrigerant gas a5 flows into the compressor 1 from the outlet of the pump body condenser 4 through the cooling inlet of the pump body of the compressor 1, absorbs the heat of the pump body in the compressor 1 and evaporates further to form a low-temperature and low-pressure gas a6, and a6 passes through in turn The second four-way valve 6 and the first four-way valve 5 enter the compressor from the inlet port of the compressor 1 .
如图3和图4所示，在另一种实施例中，空调系统包括用于制热及制冷切换的第一四通阀5，第一四通阀5的第一D管口D1与压缩机的出口端连通，其第一C管口C1与蒸发器2的另一个开口连通，其第一S管口S1与压缩机1的进口端连通；切换组件为第一三通阀7及第二三通阀8；第一三通阀7连接第一四通阀的第一E管口E1、泵体冷却出口及泵体冷凝器4的入口，第二三通阀8连接第一四通阀的第一E管口E1、泵体冷凝器4的入口及制冷冷凝器3的另一个开口。As shown in Figures 3 and 4, in another embodiment, the air conditioning system includes a first four-way valve 5 for switching between heating and cooling, and the first D pipe D1 of thefirst four-way valve 5 is connected to The outlet port of the compressor is connected, its first C pipe portC1 is connected with the other opening of the evaporator 2, and its first S pipe port S1 is connected with the inlet port of the compressor1 ; the switching component is the first three-way valve 7 and the second three-way valve 8; the first three-way valve 7 is connected to the first E pipe E1 of the first four-way valve, the cooling outlet of the pump body and the inlet of the pump body condenser 4, and the second three-way valve 8 is connected to The first E pipe port E1 of the first four-way valve, the inlet of the pump body condenser 4 and the other opening of the refrigeration condenser 3 .
可以理解的是，第一三通阀7及第二三通阀8优选为二位三通阀。其中，第一三通阀7处于泵体冷凝器4的入口与泵体冷却出口连通的状态时，第二三通阀8处于第一四通阀的第一E管口E1与制冷冷凝器3的另一个开口连通的状态；第一三通阀7处于第一四通阀的第一E管口E1与泵体冷却出口连通的状态时，第二三通阀8处于泵体冷凝器4的入口与制冷冷凝器3的另一个开口连通的状态。It can be understood that the first three-way valve 7 and the second three-way valve 8 are preferably two-position three-way valves. Wherein, when the first three-way valve 7 is in the state where the inlet of the pump body condenser 4 communicates with the cooling outlet of the pump body, the second three-way valve 8 is between the first E pipe port E1 of thefirst four-way valve and the refrigeration condenser. The other opening of 3 is connected; when the first three-way valve 7 is in the state where the first E pipe E1 of thefirst four-way valve is in communication with the cooling outlet of the pump body, the second three-way valve 8 is in the pump body condenser The state that the entrance of 4 communicates with the other opening of refrigeration condenser 3.
在制冷状态时，第一四通阀5处于制冷状态，即第一四通阀5的第一D管口D1与第一E管口E1连通，第一C管口C1与第一S管口S1连通；而第一三通阀7处于泵体冷凝器4的入口与泵体冷却出口连通的状态，第二三通阀8处于第一四通阀的第一E管口E1与制冷冷凝器3的另一个开口连通的状态。这使得主路循环回路与泵体冷却循环回路相互独立。In the cooling state, the first four-way valve 5 is in the cooling state, that is, the first D pipe D1 of the first four-way valve 5 communicates with the first E pipe E1 , and the first C pipe C1 communicates with the first E pipe. The S pipe port S1 communicates; and thefirst three-way valve 7 is in the state where the inlet of the pump body condenser 4 communicates with the pump body cooling outlet, and the second three-way valve 8 is in the first E pipe port E of the first four-way valve.1 is in communication with the other opening of the refrigeration condenser 3. This makes the main road circulation loop and the pump body cooling circulation loop independent of each other.
在制热状态时，第一四通阀5处于制热状态，即第一四通阀5的第一D管口D1与第一C管口C1连通，第一E管口E1与第一S管口S1连通；而第一三通阀7处于第一四通阀的第一E管口E1与泵体冷却出口连通的状态，第二三通阀8处于泵体冷凝器4的入口与制冷冷凝器3的另一个开口连通的状态。制冷剂由压缩机1的出口进入蒸发器2，经节流装置后依次经过制冷冷凝器3及泵体冷凝器4，再由泵体冷凝器4的出口经过压缩机1的泵体冷却入口流入压缩机1，再由压缩机1的泵体冷却出口流入压缩机1的入口。In the heating state, the first four-way valve 5 is in the heating state, that is, the first D pipe D1 of the first four-way valve 5 communicates with the first C pipe C1 , and the first E pipe E1 communicates with The first S pipe S1 communicates; while the first three-way valve 7 is in the state where the first E pipe E1 of the first four-way valve communicates with the cooling outlet of the pump body, and the second three-way valve 8 is in the pump body condenser The state that the entrance of 4 communicates with the other opening of refrigeration condenser 3. The refrigerant enters the evaporator 2 from the outlet of the compressor 1, passes through the throttling device and then passes through the refrigeration condenser 3 and the pump body condenser 4 in turn, and then flows from the outlet of the pump body condenser 4 through the cooling inlet of the pump body of the compressor 1 The compressor 1 flows into the inlet of the compressor 1 from the cooling outlet of the pump body of the compressor 1.
也可以采用多个二通阀或多个二通阀与三通阀混合使用达到上述效果，在此不再详细介绍，仅需满足上述制冷剂流动方向即可。Multiple two-way valves or a combination of multiple two-way valves and three-way valves can also be used to achieve the above effects, which will not be described in detail here, and only need to meet the above flow direction of the refrigerant.
为了在制冷状态下泵体冷却循环回路中的制冷剂顺畅流动，本发明实施例提供的空调系统还包括设置于泵体冷却循环回路的泵送装置。通过泵送装置的作用，使得泵体冷却循环回路中的制冷剂流动。其中，泵送装置可以为液压泵或压缩机等装置，在此不再一一介绍且均在保护范围之内。In order to ensure smooth flow of the refrigerant in the cooling circuit of the pump body in a cooling state, the air conditioning system provided by the embodiment of the present invention further includes a pumping device arranged in the cooling circuit of the pump body. Through the action of the pumping device, the refrigerant in the pump body cooling cycle loop flows. Wherein, the pumping device may be a hydraulic pump or a compressor, etc., which will not be introduced one by one here and are all within the scope of protection.
优选地，泵送装置设置于泵体冷凝器4与压缩机1的泵体冷却入口之间。也可以将泵送装置设置于其它位置，如泵体冷凝器4的进口端或压缩机1的泵体冷却出口处。Preferably, the pumping device is arranged between the pump body condenser 4 and the pump body cooling inlet of the compressor 1 . The pumping device can also be arranged at other positions, such as the inlet end of the condenser 4 of the pump body or the cooling outlet of the pump body of the compressor 1 .
也可以将泵体冷却循环回路设置为重力热管自循环回路，即制冷剂通过其自身重力循环。其中，泵体冷凝器4所在水平面高于压缩机1所在水平面。如图1所示，制冷剂液体b2在重力作用下向下流动，经过压缩机1并吸收压缩机1内泵体的热量而不断蒸发形成制冷剂蒸汽b1，制冷剂蒸汽b1向上流动经过第二四通阀6，进入泵体冷凝器4，冷却放出热量后，凝结成制冷剂液体b2，在重力作用下回到压缩机1。It is also possible to set the pump body cooling circulation loop as a gravity heat pipe self-circulation loop, that is, the refrigerant circulates through its own gravity. Wherein, the horizontal plane where the pump body condenser 4 is located is higher than the horizontal plane where the compressor 1 is located. As shown in Figure 1, the refrigerant liquid b2 flows downward under the action of gravity, passes through the compressor 1 and absorbs the heat of the pump body in the compressor 1, and continuously evaporates to form refrigerant vapor b1, which flows upward through the second The four-way valve 6 enters the condenser 4 of the pump body. After cooling and releasing heat, it condenses into refrigerant liquid b2 and returns to the compressor 1 under the action of gravity.
进一步地，泵体冷却入口在压缩机1上的水平位置低于泵体冷却出口在压缩机1上的水平位置。Further, the horizontal position of the cooling inlet of the pump body on the compressor 1 is lower than the horizontal position of the cooling outlet of the pump body on the compressor 1 .
更进一步地，泵体冷凝器4的入口在泵体冷凝器4上的水平位置高于泵体冷凝器4的出口在泵体冷凝器4上的水平位置。Furthermore, the horizontal position of the inlet of the pump condenser 4 on the pump condenser 4 is higher than the horizontal position of the outlet of the pump condenser 4 on the pump condenser 4 .
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410487651.8ACN104344595B (en) | 2014-09-22 | 2014-09-22 | Air conditioning system |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410487651.8ACN104344595B (en) | 2014-09-22 | 2014-09-22 | Air conditioning system |
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| CN104344595Btrue CN104344595B (en) | 2017-05-24 |
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| CN201410487651.8AExpired - Fee RelatedCN104344595B (en) | 2014-09-22 | 2014-09-22 | Air conditioning system |
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