WO2022160555A1 - 一种轨道交通车辆co2空调系统压力保护控制系统 - Google Patents

一种轨道交通车辆co2空调系统压力保护控制系统 Download PDF

Info

Publication number
WO2022160555A1
WO2022160555A1 PCT/CN2021/099346 CN2021099346W WO2022160555A1 WO 2022160555 A1 WO2022160555 A1 WO 2022160555A1 CN 2021099346 W CN2021099346 W CN 2021099346W WO 2022160555 A1 WO2022160555 A1 WO 2022160555A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
pressure
contactor
switch
pressure sensor
Prior art date
Application number
PCT/CN2021/099346
Other languages
English (en)
French (fr)
Inventor
孟凡杰
赵博
杜平
王海姚
曾磊
李继洋
杨波
陈建波
庞学博
宋大鹏
包明冬
Original Assignee
中车大连机车研究所有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车大连机车研究所有限公司 filed Critical 中车大连机车研究所有限公司
Publication of WO2022160555A1 publication Critical patent/WO2022160555A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning
    • B61D27/0072—Means for cooling only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Definitions

  • the invention relates to the technical field of air conditioning equipment for rail vehicles, in particular to a pressure protection control system for a CO2 air conditioning system of rail vehicles.
  • the system pressure is generally in the critical region, which is 4 to 6 times higher than that of conventional refrigerants. If the pressure exceeds a safe value during the refrigeration process, explosion danger is likely to occur. Only the high pressure pressure switch, pressure sensor and pressure relief valve are used to form a pressure protection system, which cannot more reliably ensure the safety of CO2 air conditioners.
  • the present invention provides a pressure protection control system for a CO2 air-conditioning system of a rail transit vehicle to overcome the above technical problems.
  • the present invention is a pressure protection control system for a CO2 air conditioning system of a rail transit vehicle, comprising: a fan air pressure switch, a condensing fan air pressure switch, a pressure sensor, a pressure switch, a compressor thermal-magnetic circuit breaker, a compressor pipeline temperature protection switch, controller and compressor contactor; the fan air pressure switch, condenser fan air pressure switch, pressure switch, compressor pipeline temperature protection switch and the coil of the compressor contactor form a series circuit; the input end of the controller Connect 110Vdc+ and 110Vdc- power supplies, the output port of the controller is connected to the fan air pressure switch; the pressure sensor is connected to the input port of the controller; the other side of the compressor contactor coil is connected to 110Vdc- Power supply; one side terminal of the compressor thermal-magnetic circuit breaker is connected to the 380Vac power supply, and the other side terminal is connected to one side terminal of the compressor contactor; the other side terminal of the compressor contactor is connected to the compressor main circuit Incoming port.
  • the series circuit further includes: an auxiliary contact of the compressor thermal-magnetic circuit breaker; the auxiliary contact of the compressor thermal-magnetic circuit breaker is connected to the pressure switch and the compressor pipeline temperature protection Between switches; when the compressor main circuit is overloaded, the auxiliary contact of the compressor thermal-magnetic circuit breaker is disconnected, so that the compressor contactor is disconnected from the series circuit.
  • the series circuit further includes: a compressor built-in thermal protector; the compressor built-in thermal protector is connected to the auxiliary contact of the compressor thermal-magnetic circuit breaker and the compressor pipeline temperature protection between switches; when the compressor main circuit is overloaded, the built-in thermal protector of the compressor is disconnected, so that the compressor contactor is disconnected from the series circuit.
  • the controller is provided with a digital output port Do01, an analog input port AI01 and an analog input port AI02; the high pressure detection terminal HPS of the pressure sensor is connected to the analog input port AI01, and the pressure sensor is connected to the analog input port AI01.
  • the low pressure detection terminal LPS is connected to the analog input port AI02; when the pressure value detected by the pressure sensor is higher than the set threshold value of the system, the controller disconnects the output of the output port Do01 to make the compressor contactor Disconnect from the series circuit.
  • the pressure sensor includes: a high pressure pressure sensor and a low pressure pressure sensor; the high pressure pressure sensor and the low pressure pressure sensor are respectively connected to both ends of the compressor; The pressure valve is respectively connected with the high pressure pressure sensor and the low pressure pressure sensor.
  • the invention adopts the fan air pressure switch, the condensing fan air pressure switch, the pressure switch, the compressor pipeline temperature protection switch and the coil of the compressor contactor to form a series circuit, and the controller and the 110V power supply form a series circuit, and the series circuit forms a series circuit.
  • the disconnection of any device will disconnect the compressor contactor from the circuit, providing multi-level protection measures for CO2 air conditioning, thereby effectively improving the safety protection of the refrigeration circuit pressure of the rail transit CO2 air conditioning system, avoiding the need for CO2 air conditioning system. Safety issues due to high system pressure and can improve system stability.
  • Fig. 1 is the electrical connection principle diagram of the present invention
  • FIG. 2 is a schematic diagram of the connection structure of the pressure relief valve, the pressure sensor and the compressor in the present invention.
  • Fan air pressure switch 2. Condensing fan air pressure switch; 3. Pressure sensor; 31. High-pressure pressure sensor; 32. Low-pressure pressure sensor; 4. Pressure switch; 5. Compressor thermal-magnetic circuit breaker; 6. Compression Built-in thermal protector; 7. Compressor pipeline temperature protection switch; 8. Pressure relief valve; 9. Controller; 10. Compressor contactor; 11. Compressor.
  • this embodiment provides a pressure protection control system for a CO2 air conditioning system of a rail transit vehicle, including: a fan air pressure switch 1, a condenser fan air pressure switch 2, a pressure sensor 3, a pressure switch 4, a compressor heat Magnetic circuit breaker 5, compressor pipeline temperature protection switch 7, controller 9 and compressor contactor 10; among them, fan air pressure switch 1, condenser fan air pressure switch 2, pressure switch 4, compressor pipeline temperature protection
  • the switch 7 and the coil of the compressor contactor 10 form a series circuit; the input end of the controller 9 is connected to the 110Vdc+ and 110Vdc- power supplies, the output port of the controller 9 is connected to the fan air pressure switch 1; the pressure sensor 3 is connected to the input of the controller 9 Port; the other side of the compressor contactor coil is connected to the 110Vdc- power supply, so that the series circuit forms a DC loop with the 110Vdc+ and 110Vdc- power supplies through the controller 9.
  • One side terminal of the compressor thermal-magnetic circuit breaker 5 is connected to the 380Vac power supply, and the other side terminal is connected to one side terminal of the compressor contactor 10; the other side terminal of the compressor contactor 10 is connected to the main circuit inlet port of the compressor 11,
  • the compressor thermal-magnetic circuit breaker 5, the compressor contactor 10 and the compressor constitute an AC circuit.
  • the DC control circuit of the compressor contactor 10 is disconnected by hard wires, so that the main contact of the compressor contactor 10 is disconnected, and the compressor is powered off and stopped. work to achieve the 1st level protection of the pressure protection control.
  • the DC control circuit of the compressor contactor 10 is disconnected by hard wires, so that the main contact of the compressor contactor 10 is disconnected, and the compressor is powered off and stopped. work to achieve the 2nd level protection of the pressure protection control.
  • the controller 9 When the pressure sensor 3 detects that the system pressure is higher than the system design value, the controller 9 will disconnect the DC control loop of the compressor contactor 10 through software to realize the third-level protection of the pressure protection control.
  • the compressor pipeline temperature protection switch 7 installed on the pipeline will be disconnected, and the compressor contactor 10 will be disconnected at the same time, so that the main contact of the compressor contactor 10 will be disconnected, and the compressor will be powered off and stopped. work to achieve the 4th level protection of the pressure protection control.
  • the pressure switch 4 When the system pressure abnormally exceeds the set value of the pressure switch 4, the pressure switch 4 will disconnect the DC control circuit of the compressor contactor 10 through a hard wire, so that the main contact of the compressor contactor 10 is disconnected, and the compressor will be powered off and stopped. work to achieve the 5th level protection of the pressure protection control.
  • the series circuit further includes: the auxiliary contact of the compressor thermal-magnetic circuit breaker 5; the auxiliary contact of the compressor thermal-magnetic circuit breaker 5 is connected between the pressure switch 4 and the compressor pipeline temperature protection switch 7 When the compressor main circuit is overloaded, the auxiliary contact of the compressor thermal-magnetic circuit breaker 5 is disconnected, so that the compressor contactor 10 is disconnected from the series circuit.
  • the compressor thermal-magnetic circuit breaker 5 when the compressor main circuit is overloaded, the compressor thermal-magnetic circuit breaker 5 will disconnect the compressor main circuit according to the tripping curve, and the auxiliary contact of the compressor thermal-magnetic circuit breaker 5 It is also connected in series to the DC circuit of the compressor contactor 10. When the compressor thermal-magnetic circuit breaker 5 operates, its auxiliary contacts will also be disconnected, so that the compressor contactor 10 is disconnected from the series circuit.
  • the series circuit further includes: a compressor built-in thermal protector 6; the compressor built-in thermal protector 6 is connected between the auxiliary contact of the compressor thermal-magnetic circuit breaker 5 and the compressor pipeline temperature protection switch 7 When the compressor main circuit is overloaded, the compressor built-in thermal protector 6 is disconnected, so that the compressor contactor 10 is disconnected from the series circuit.
  • the controller 9 is provided with a digital output port Do01, an analog input port AI01 and an analog input port AI02; the high pressure detection end HPS of the pressure sensor 3 is connected to the analog input port AI01, and the low pressure detection end of the pressure sensor 3
  • the LPS is connected to the analog input port AI02; when the pressure value detected by the pressure sensor 3 is higher than the set threshold value of the system, the controller 9 disconnects the output of Do01 to disconnect the compressor contactor 10 from the series circuit.
  • it also includes: two pressure relief valves 8; a pressure sensor 3, including: a high pressure pressure sensor 31 and a low pressure pressure sensor 32; the high pressure pressure sensor 31 and the low pressure pressure sensor 32 are respectively connected to both ends of the compressor 11; The two pressure relief valves 8 are respectively connected to the high pressure pressure sensor 31 and the low pressure pressure sensor 32 .
  • the present invention realizes 6-level protection through the coordination of three kinds of protections: electric hard wire control, software control and mechanical direct control, which can prevent the occurrence of pressure failure in advance, effectively reduce the probability of pressure failure, and ensure the pressure stability of the CO2 air conditioning system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

一种轨道交通车辆CO2空调系统压力保护控制系统，由通风机风压开关（1）、冷凝风机风压开关（2）、压力开关（4）、压缩机管路温度保护开关（7）及压缩机接触器（10）的线圈构成串联电路；控制器（9）的输入端连接110Vdc+和110Vdc-电源，控制器（9）的输出端口连接通风机风压开关（1）；压力传感器（3）连接控制器（9）的输入端子；压缩机接触器（10）线圈的另一端连接110Vdc-电源；压缩机热磁断路器（5）的一侧端子连接380Vac电源，另一侧端子连接压缩机接触器（10）的一侧端口；压缩机接触器（10）的另一侧端子连接压缩机（11）主回路进线端口。串联电路中任一器件断开均会使压缩机接触器（10）断开与回路的连接，从而为CO2空调提供六级保护措施，有效地提高轨道交通CO2空调系统制冷回路压力的安全保护。

Description

一种轨道交通车辆CO2空调系统压力保护控制系统 技术领域
本发明涉及轨道车辆空调设备技术领域，尤其涉及一种轨道交通车辆CO2空调系统压力保护控制系统。
背景技术
随着社会的发展，各行业都提高了对环保的要求，对于轨道空调系统，用二氧化碳替代常规冷媒，能够有效地减少对温室效应的影响，另外，二氧化碳具有无毒、不可燃等优点，目前是替代常规冷媒的首选制冷剂。
但使用二氧化碳作为制冷剂时，其系统压力一般都在差临界区域，高于常规冷媒的4～6倍,如果在制冷过程中压力超过安全值，易发生爆破危险，现有技术中的CO2空调仅采用了高压压力开关、压力传感器和泄压阀构成压力保护系统，不能更可靠的确保CO2空调使用安全。
发明内容
本发明提供一种轨道交通车辆CO2空调系统压力保护控制系统，以克服上述技术问题。
本发明一种轨道交通车辆CO2空调系统压力保护控制系统，包括：通风机风压开关、冷凝风机风压开关、压力传感器、压力开关、压缩机热磁断路器、压缩机管路温度保护开关、控制器及压缩机接触器；所述通风机风压开关、冷凝风机风压开关、压力开关、压缩机管路温度保护开关及压缩机接触器的线圈构成串联电路；所述控制器的输入端连接110Vdc+和110Vdc-电源，所述控制器的输出端口连接所述通风机风压开关；所述压力传感器连接所述控制器的输入端口；所述压缩机接触器线圈的另一侧连接110Vdc-电源；所述压缩机热磁断路器的一侧端子连接380Vac电源，另一侧端子连接所述压缩机接触器的一侧端子；所述压缩机接触器的另一侧端子连接压缩机主回路进线端口。
进一步地，所述串联电路中，还包括：压缩机热磁断路器的辅助触点；所述压缩机热磁断路器的辅助触点连接于所述压力开关与所述压缩机管路温度保护开关之间；当压缩机主回路过载时，所述压缩机热磁断路器的辅助触 点断开，使所述压缩机接触器断开与所述串联电路的连接。
进一步地，所述串联电路中，还包括：压缩机内置热保护器；所述压缩机内置热保护器连接于所述压缩机热磁断路器的辅助触点与所述压缩机管路温度保护开关之间；当压缩机主回路过载时，所述压缩机内置热保护器断开，使所述压缩机接触器断开与所述串联电路的连接。
进一步地，所述控制器设有数字量输出端口Do01、模拟量输入端口AI01和模拟量输入端口AI02；所述压力传感器的高压检测端HPS连接所述模拟量输入端口AI01，所述压力传感器的低压检测端LPS连接所述模拟量输入端口AI02；当压力传感器检测到的压力值高于系统的设定阈值时，所述控制器通过断开输出端口Do01的输出，使所述压缩机接触器断开与所述串联电路的连接。
进一步地，还包括：两个泄压阀；所述压力传感器，包括：高压压力传感器和低压压力传感器；所述高压压力传感器和低压压力传感器分别连接于压缩机的两端；两个所述泄压阀分别与所述高压压力传感器和低压压力传感器相连接。
本发明采用通风机风压开关、冷凝风机风压开关、压力开关、压缩机管路温度保护开关及压缩机接触器的线圈构成串联电路，并通过控制器与110V电源构成串联回路，串联回路中任一器件断开均会使压缩机接触器断开与回路的连接，为CO2空调提供多级保护措施，从而有效地提高轨道交通CO2空调系统制冷回路压力的安全保护，避免了由于CO2空调系统由于系统压力高导致的安全问题，并且能够提高系统的稳定性。
附图说明
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以简单地介绍，显而易见地，下面描述中的附图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性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的电器连接原理图；
图2为本发明中的泄压阀与压力传感器及压缩机的连接结构示意图。
附图标号说明：
1、通风机风压开关；2、冷凝风机风压开关；3、压力传感器；31、高压 压力传感器；32、低压压力传感器；4、压力开关；5、压缩机热磁断路器；6、压缩机内置热保护器；7、压缩机管路温度保护开关；8、泄压阀；9、控制器；10、压缩机接触器；11、压缩机。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，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作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。
如图1所示，本实施例提供一种轨道交通车辆CO2空调系统压力保护控制系统，包括：通风机风压开关1、冷凝风机风压开关2、压力传感器3、压力开关4、压缩机热磁断路器5、压缩机管路温度保护开关7、控制器9及压缩机接触器10；其中，通风机风压开关1、冷凝风机风压开关2、压力开关4、压缩机管路温度保护开关7及压缩机接触器10的线圈构成串联电路；控制器9的输入端连接110Vdc+和110Vdc-电源，控制器9的输出端口连接通风机风压开关1；压力传感器3连接控制器9的输入端口；压缩机接触器线圈的另一侧连接110Vdc-电源，从而串联电路通过控制器9与110Vdc+和110Vdc-电源构成直流回路。压缩机热磁断路器5的一侧端子连接380Vac电源，另一侧端子连接压缩机接触器10的一侧端子；压缩机接触器10的另一侧端子连接压缩机11主回路进线端口，压缩机热磁断路器5、压缩机接触器10及压缩机构成了交流回路。
当通风机风压开关1断开时，为防止系统压力过高，通过硬线将压缩机接触器10直流控制回路断开，使压缩机接触器10主触点断开，压缩机断电停止工作，实现压力保护控制的第1级保护。
当冷凝风机风压开关2断开时，为防止系统压力过高，通过硬线将压缩机接触器10直流控制回路断开，使压缩机接触器10主触点断开，压缩机断电停止工作，实现压力保护控制的第2级保护。
当压力传感器3检测到系统压力高于系统设计值时，控制器9会通过软件将压缩机接触器10直流控制回路断开，实现压力保护控制的第3级保护。
当系统压力异常时，安装在管路上的压缩机管路温度保护开关7会断开， 同时压缩机接触器10会断开,使压缩机接触器10主触点断开，压缩机断电停止工作，实现压力保护控制的第4级保护。
当系统压力异常超过压力开关4设定值时，压力开关4就会通过硬线断开压缩机接触器10的直流控制回路，使压缩机接触器10主触点断开，压缩机断电停止工作,实现压力保护控制的第5级保护。
当系统压力超过压力泄压阀8的开始压力值时，泄压阀8的机械部件会自动开启，对系统进行泄压，实现压力保护控制的第6级保护。
本实施例中，串联电路中，还包括：压缩机热磁断路器5的辅助触点；压缩机热磁断路器5的辅助触点连接于压力开关4与压缩机管路温度保护开关7之间；当压缩机主回路过载时，压缩机热磁断路器5的辅助触点断开，使压缩机接触器10断开与串联电路的连接。
具体而言，如图1所示，当压缩机主回路过载时，压缩机热磁断路器5会依据脱扣曲线将压缩机主回路断开，且压缩机热磁断路器5的辅助触点也串联入到了压缩机接触器10的直流回路中，当压缩机热磁断路器5动作时，其辅助触点也会断开，使压缩机接触器10断开与串联电路的连接。
本实施例中，串联电路中，还包括：压缩机内置热保护器6；压缩机内置热保护器6连接于压缩机热磁断路器5的辅助触点与压缩机管路温度保护开关7之间；当压缩机主回路过载时，压缩机内置热保护器6断开，使压缩机接触器10断开与串联电路的连接。
本实施例中，控制器9设有数字量输出端口Do01、模拟量输入端口AI01和模拟量输入端口AI02；压力传感器3的高压检测端HPS连接模拟量输入端口AI01，压力传感器3的低压检测端LPS连接模拟量输入端口AI02；当压力传感器3检测到的压力值高于系统的设定阈值时，控制器9通过断开Do01的输出，使压缩机接触器10断开与串联电路的连接。
本实施例中，还包括：两个泄压阀8；压力传感器3，包括：高压压力传感器31和低压压力传感器32；高压压力传感器31和低压压力传感器32分别连接于压缩机11的两端；两个泄压阀8分别与高压压力传感器31和低压压力传感器32相连接。通过在压缩机11的两端设置泄压阀8和压力传感器3，能够更有效的提高对压缩机11的保护。
整体有益效果：
本发明通过电气硬线控制、软件控制和机械直接控制三种保护配合实现了6级保护，能够提前预防压力故障的发生，有效降低压力故障概率，保证CO2空调系统的压力稳定。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (5)

  1. 一种轨道交通车辆CO2空调系统压力保护控制系统，其特征在于，包括：
    通风机风压开关(1)、冷凝风机风压开关(2)、压力传感器(3)、压力开关(4)、压缩机热磁断路器(5)、压缩机管路温度保护开关(7)、控制器(9)及压缩机接触器(10)；
    所述通风机风压开关(1)、冷凝风机风压开关(2)、压力开关(4)、压缩机管路温度保护开关(7)及压缩机接触器(10)的线圈构成串联电路；所述控制器(9)的输入端连接110Vdc+和110Vdc-电源，所述控制器(9)的输出端口连接所述通风机风压开关(1)；所述压力传感器(3)连接所述控制器(9)的输入端子；所述压缩机接触器(10)线圈的另一侧连接110Vdc-电源；
    所述压缩机热磁断路器(5)的一侧端子连接380Vac电源，另一侧端子连接所述压缩机接触器(10)的一侧端口；所述压缩机接触器(10)的另一侧端子连接压缩机(11)主回路进线端口。
  2. 根据权利要求1所述的一种轨道交通车辆CO2空调系统压力保护控制系统，其特征在于，所述串联电路中，还包括：
    压缩机热磁断路器(5)的辅助触点；
    所述压缩机热磁断路器(5)的辅助触点连接于所述压力开关(4)与所述压缩机管路温度保护开关(7)之间；
    当压缩机主回路过载时，所述压缩机热磁断路器(5)的辅助触点断开，使所述压缩机接触器(10)断开与所述串联电路的连接。
  3. 根据权利要求2所述的一种轨道交通车辆CO2空调系统压力保护控制系统，其特征在于，所述串联电路中，还包括：
    压缩机内置热保护器(6)；
    所述压缩机内置热保护器(6)连接于所述压缩机热磁断路器(5)的辅助触点与所述压缩机管路温度保护开关(7)之间；
    当压缩机主回路过载时，所述压缩机内置热保护器(6)断开，使所述压缩机接触器(10)断开与所述串联电路的连接。
  4. 根据权利要求3所述的一种轨道交通车辆CO2空调系统压力保护控制系统，其特征在于，所述控制器(9)设有数字量输出端口Do01、模拟量输 入端口AI01和模拟量输入端口AI02；
    所述压力传感器(3)的高压检测端HPS连接所述模拟量输入端口AI01，所述压力传感器(3)的低压检测端LPS连接所述模拟量输入端口AI02；
    当压力传感器(3)检测到的压力值高于系统的设定阈值时，所述控制器(9)通过断开端口Do01的输出，使所述压缩机接触器(10)断开与所述串联电路的连接。
  5. 根据权利要求4所述的一种轨道交通车辆CO2空调系统压力保护控制系统，其特征在于，还包括：两个泄压阀(8)；
    所述压力传感器(3)，包括：高压压力传感器(31)和低压压力传感器(32)；
    所述高压压力传感器(31)和低压压力传感器(32)分别连接于压缩机(11)的两端；两个所述泄压阀(8)分别与所述高压压力传感器(31)和低压压力传感器(32)相连接。
PCT/CN2021/099346 2021-01-29 2021-06-10 一种轨道交通车辆co2空调系统压力保护控制系统 WO2022160555A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110129680.7A CN112721979B (zh) 2021-01-29 2021-01-29 一种轨道交通车辆co2空调系统压力保护控制系统
CN202110129680.7 2021-01-29

Publications (1)

Publication Number Publication Date
WO2022160555A1 true WO2022160555A1 (zh) 2022-08-04

Family

ID=75594819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/099346 WO2022160555A1 (zh) 2021-01-29 2021-06-10 一种轨道交通车辆co2空调系统压力保护控制系统

Country Status (2)

Country Link
CN (1) CN112721979B (zh)
WO (1) WO2022160555A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112721979B (zh) * 2021-01-29 2024-06-04 中车大连机车研究所有限公司 一种轨道交通车辆co2空调系统压力保护控制系统
CN113588314A (zh) * 2021-08-18 2021-11-02 苏州优曼特自动化设备有限公司 一种空调机组测试系统及测试方法
CN114738253A (zh) * 2022-03-18 2022-07-12 交控科技股份有限公司 轨道车辆空气压缩机启动控制电路和方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120192579A1 (en) * 2009-10-23 2012-08-02 Carrier Corporation Refrigerant vapor compression system operation
EP2999932A1 (en) * 2013-05-03 2016-03-30 Hill Phoenix Inc. Systems and methods for pressure control in a co2 refrigeration system
DE102014223956A1 (de) * 2014-11-25 2016-05-25 Konvekta Ag Kälteanlage mit Füllgradüberwachung
CN107143985A (zh) * 2017-06-26 2017-09-08 广东美的暖通设备有限公司 一种用于空调系统压力保护的装置和空调系统
CN108528165A (zh) * 2017-12-06 2018-09-14 广西柳工机械股份有限公司 车用空调高低压保护方法及保护系统
CN209230061U (zh) * 2018-12-06 2019-08-09 中车大连机车研究所有限公司 一种具有压力保护系统的二氧化碳空调
CN210000325U (zh) * 2019-05-21 2020-01-31 金鑫美莱克空调系统（无锡）有限公司 轨道交通车辆空调系统的安全保护电路
CN211417255U (zh) * 2019-04-30 2020-09-04 蒋甫政 采用co2制冷工质的轨道车辆热泵空调系统
CN112721979A (zh) * 2021-01-29 2021-04-30 中车大连机车研究所有限公司 一种轨道交通车辆co2空调系统压力保护控制系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2902049B1 (fr) * 2006-06-09 2008-09-05 Alstom Transport Sa Systeme et procede d'alimentation pour un vehicule ferroviaire, convertisseur, unite de pilotage, climatiseur pour ce systeme
CN204037285U (zh) * 2014-08-21 2014-12-24 江苏创导空调有限公司 车用电动空调系统
CN104210327B (zh) * 2014-08-21 2016-08-31 江苏创导空调有限公司 一种车用电动空调系统
CN110104009A (zh) * 2019-04-23 2019-08-09 广州鼎汉轨道交通车辆装备有限公司 一种智能轨道交通空调及其控制方法
CN110745155A (zh) * 2019-12-10 2020-02-04 株洲桓基电气股份有限公司 一种机车空调控制系统
CN214648271U (zh) * 2021-01-29 2021-11-09 中车大连机车研究所有限公司 一种轨道交通车辆co2空调系统压力保护控制系统

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120192579A1 (en) * 2009-10-23 2012-08-02 Carrier Corporation Refrigerant vapor compression system operation
EP2999932A1 (en) * 2013-05-03 2016-03-30 Hill Phoenix Inc. Systems and methods for pressure control in a co2 refrigeration system
DE102014223956A1 (de) * 2014-11-25 2016-05-25 Konvekta Ag Kälteanlage mit Füllgradüberwachung
CN107143985A (zh) * 2017-06-26 2017-09-08 广东美的暖通设备有限公司 一种用于空调系统压力保护的装置和空调系统
CN108528165A (zh) * 2017-12-06 2018-09-14 广西柳工机械股份有限公司 车用空调高低压保护方法及保护系统
CN209230061U (zh) * 2018-12-06 2019-08-09 中车大连机车研究所有限公司 一种具有压力保护系统的二氧化碳空调
CN211417255U (zh) * 2019-04-30 2020-09-04 蒋甫政 采用co2制冷工质的轨道车辆热泵空调系统
CN210000325U (zh) * 2019-05-21 2020-01-31 金鑫美莱克空调系统（无锡）有限公司 轨道交通车辆空调系统的安全保护电路
CN112721979A (zh) * 2021-01-29 2021-04-30 中车大连机车研究所有限公司 一种轨道交通车辆co2空调系统压力保护控制系统

Also Published As

Publication number Publication date
CN112721979B (zh) 2024-06-04
CN112721979A (zh) 2021-04-30

Similar Documents

Publication Publication Date Title
WO2022160555A1 (zh) 一种轨道交通车辆co2空调系统压力保护控制系统
US11933509B2 (en) Compressor driving device, compressor pressure protection method, and air conditioner
US8988836B2 (en) Power circuit, and computer-readable recording medium storing a control program for power circuits
JPH04255597A (ja) 空調装置
CN109612022B (zh) 一种防止空调堵阀门运行的控制方法
CN104848479A (zh) 空调器及其冷媒管路压力监控与系统控制方法和装置
CN214648271U (zh) 一种轨道交通车辆co2空调系统压力保护控制系统
CN106438320B (zh) 一种压缩机高压保护系统和方法
JP6320618B2 (ja) 冷凍サイクル装置
JP2009204168A (ja) 空気調和機の圧縮機保護制御装置
CN111550394A (zh) 一种压缩机运行频率的控制方法、装置以及泳池机系统
CN110645672A (zh) 一种变频空调器缺冷媒保护方法
CN103441709A (zh) 压缩机的启动控制系统及具有其的制冷设备
JPS6332255A (ja) 空気調和機
KR100437054B1 (ko) 히트펌프의 과부하 방지장치 및 그 방법
CN107192022A (zh) 空调器、及空调器控制方法、装置及存储介质
JPH0370943A (ja) 空気調和装置の運転制御装置
CN112017847A (zh) 一种变压器室内的温度控制方法及装置
CN208291227U (zh) 一种单相交流电源输入一体化空调
CN104848600A (zh) 一种冻干机制冷压缩机保护系统
CN213841426U (zh) 一种双高压开关保护装置及除湿机
CN114421429B (zh) 变频器保护装置、变频器及空调器
CN113639398B (zh) 压缩机排气检测异常时制冷系统的保护方法、空调机组
CN219918714U (zh) 功率因数校正电路及空调器
CN213687341U (zh) 冷凝机组无电控板的接线安全保护开停及报警装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21922153

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21922153

Country of ref document: EP

Kind code of ref document: A1