CN220267792U - Crank connecting rod driving isothermal compressed air energy storage power generation system - Google Patents

Crank connecting rod driving isothermal compressed air energy storage power generation system Download PDF

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CN220267792U
CN220267792U CN202321597793.0U CN202321597793U CN220267792U CN 220267792 U CN220267792 U CN 220267792U CN 202321597793 U CN202321597793 U CN 202321597793U CN 220267792 U CN220267792 U CN 220267792U
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compressed air
connecting rod
gas
energy storage
piston
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刘晓祥
王元凯
张腾飞
刘志勇
王裕
杜维秀
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Henan Splendor Science and Technology Co Ltd
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Henan Splendor Science and Technology Co Ltd
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Abstract

本实用新型提供一种曲柄连杆驱动等温压缩空气储能发电系统,包括压缩空气储能装置、控制系统,控制系统用于控制所述压缩空气储能装置的进行压缩储能和膨胀释能;压缩空气储能装置包括控温液体活塞单元、分级等温压缩空气子系统和恒压储气单元,控温液体活塞单元用于与所述分级等温压缩空气子系统进行液体往返传输,分级等温压缩空气子系统用于与所述恒压储气单元进行气体往返传输;控温液体活塞单元包括永磁三相同步电机、活塞连杆、曲柄连杆和多级液压活塞装置,多级液压活塞装置通过所述活塞连杆和所述曲柄连杆与所述永磁三相同步电机同步连接传动。该系统提高了系统能量效率,进而提高压缩空气储能系统的发电效率。

The utility model provides a crank-connecting rod driven isothermal compressed air energy storage power generation system, which includes a compressed air energy storage device and a control system. The control system is used to control the compression energy storage and expansion energy release of the compressed air energy storage device; The compressed air energy storage device includes a temperature-controlled liquid piston unit, a graded isothermal compressed air subsystem and a constant pressure gas storage unit. The temperature-controlled liquid piston unit is used to transfer liquid back and forth with the graded isothermal compressed air subsystem. The graded isothermal compressed air The subsystem is used for gas transmission back and forth with the constant pressure gas storage unit; the temperature-controlled liquid piston unit includes a permanent magnet three-phase synchronous motor, a piston connecting rod, a crank connecting rod and a multi-stage hydraulic piston device. The multi-stage hydraulic piston device passes The piston connecting rod and the crank connecting rod are synchronously connected and driven with the permanent magnet three-phase synchronous motor. This system improves the energy efficiency of the system, thereby improving the power generation efficiency of the compressed air energy storage system.

Description

曲柄连杆驱动等温压缩空气储能发电系统Crank-connecting rod driven isothermal compressed air energy storage power generation system

技术领域Technical field

本实用新型涉及压缩空气储能领域,具体的说,涉及了一种曲柄连杆驱动等温压缩空气储能发电系统。The utility model relates to the field of compressed air energy storage. Specifically, it relates to a crank connecting rod driven isothermal compressed air energy storage power generation system.

背景技术Background technique

在诸多储能技术中,压缩空气储能设备全部为机械及电气结构组成,通过设备做功实现能量在“电能←→空气势能”之间转换,具有效率高、寿命长无废弃污染、无化学介质消耗等特点,因而压缩空气储能是具有发展潜力的纯绿色储能技术之一。Among many energy storage technologies, compressed air energy storage equipment is entirely composed of mechanical and electrical structures. Through the work of the equipment, energy can be converted between "electric energy ← → air potential energy". It has high efficiency, long life, no waste pollution, and no chemical media. Consumption and other characteristics, therefore compressed air energy storage is one of the pure green energy storage technologies with development potential.

如申请公布号为CN104806313A的发明专利申请,具体公开了一种等温压缩空气储能系统及方法,在压缩机组和膨胀机组的进气口分别装有喷 射器,在储能压缩过程中,通过向被压缩空气中喷入雾状或者泡沫状液态换热介质实现准等温压缩过程,从而降低单位工质的压缩功,在压缩机组后装有气液分离器,分离压缩空气中的冷却介质并存储 ;在释能膨胀过程中,通过向膨胀过程的气体内喷射雾状或者泡沫状液态换热介质实现准等 温膨胀过程,从而提高单位工质的输出功量,并提高系统的整体效率。但该系统气体压缩和膨胀过程中采用的螺杆空压机和膨胀机需要借助空气进行传动,能效较低。For example, the invention patent application with publication number CN104806313A specifically discloses an isothermal compressed air energy storage system and method. Injectors are respectively installed at the air inlets of the compressor unit and the expansion unit. During the energy storage and compression process, through the The mist or foam liquid heat exchange medium is sprayed into the compressed air to achieve a quasi-isothermal compression process, thereby reducing the compression work per unit of working fluid. A gas-liquid separator is installed after the compressor unit to separate the cooling medium in the compressed air and store it. ; In the energy-releasing expansion process, a quasi-isothermal expansion process is achieved by spraying mist or foam liquid heat exchange medium into the expanding gas, thereby increasing the output power per unit of working fluid and improving the overall efficiency of the system. However, the screw air compressor and expander used in the gas compression and expansion process of this system need to be driven by air, and their energy efficiency is low.

为了解决以上存在的问题,人们一直在寻求一种理想的技术解决方案。In order to solve the above existing problems, people have been seeking an ideal technical solution.

实用新型内容Utility model content

为了提高压缩空气储能系统的发电效率,本实用新型所采用的技术方案是:一种曲柄连杆驱动等温压缩空气储能发电系统,包括压缩空气储能装置、控制系统,所述控制系统用于控制所述压缩空气储能装置进行压缩储能和膨胀释能;In order to improve the power generation efficiency of the compressed air energy storage system, the technical solution adopted in this utility model is: a crank connecting rod driven isothermal compressed air energy storage power generation system, including a compressed air energy storage device and a control system. The control system uses Controlling the compressed air energy storage device to perform compression energy storage and expansion energy release;

所述压缩空气储能装置包括控温液体活塞单元、分级等温压缩空气子系统和恒压储气单元,所述压缩空气储能装置通过管道连接分级等温压缩空气子系统;所述控温液体活塞单元用于与所述分级等温压缩空气子系统进行液体往返传输,所述分级等温压缩空气子系统用于与所述恒压储气单元进行气体往返传输;The compressed air energy storage device includes a temperature-controlled liquid piston unit, a graded isothermal compressed air subsystem and a constant pressure gas storage unit. The compressed air energy storage device is connected to the graded isothermal compressed air subsystem through a pipeline; the temperature-controlled liquid piston The unit is used for round-trip liquid transmission with the hierarchical isothermal compressed air subsystem, and the hierarchical isothermal compressed air subsystem is used for round-trip gas transmission with the constant pressure gas storage unit;

所述分级等温压缩空气子系统包括多级等温液体活塞装置,每级等温液体活塞装置包括两个气液热交换塔罐,每个气液热交换塔罐的顶部和底部分别通过三通水阀与控温液体活塞单元相连,每个气液热交换塔罐的顶部和底部分别设置有三通气阀,每一级气液热交换塔罐顶部的三通气阀通过连接管道与下一级气液热交换塔罐底部的三通气阀相连,最后一级气液热交换塔罐顶部的三通气阀与所述恒压储气单元相连;The hierarchical isothermal compressed air subsystem includes a multi-stage isothermal liquid piston device. Each stage of the isothermal liquid piston device includes two gas-liquid heat exchange tower tanks. The top and bottom of each gas-liquid heat exchange tower tank pass through a three-way water valve respectively. Connected to the temperature-controlled liquid piston unit, each gas-liquid heat exchange tower tank is equipped with a three-way air valve on the top and bottom respectively. The three-way air valve on the top of each gas-liquid heat exchange tower tank is connected to the next-stage gas-liquid heat exchanger tank through a connecting pipe. The three-way air valve at the bottom of the exchange tower tank is connected, and the three-way air valve at the top of the last stage gas-liquid heat exchange tower tank is connected with the constant pressure gas storage unit;

所述控温液体活塞单元包括永磁三相同步电机、活塞连杆、曲柄连杆和多级液压活塞装置,所述多级液压活塞装置通过所述活塞连杆和所述曲柄连杆与所述永磁三相同步电机同步连接传动;每级所述液压活塞装置包括液压缸和将所述液压缸分为左右两个活塞腔的活塞块,每个所述活塞腔顶部分别通过上单向阀组与所述气液热交换塔罐的顶部相连通,每个所述活塞腔底部分别通过下单向阀组与所述气液热交换塔罐的底部相连通。The temperature-controlled liquid piston unit includes a permanent magnet three-phase synchronous motor, a piston connecting rod, a crank connecting rod and a multi-stage hydraulic piston device. The multi-stage hydraulic piston device is connected to the piston connecting rod and the crank connecting rod through the piston connecting rod and the crank connecting rod. The permanent magnet three-phase synchronous motor is synchronously connected for transmission; the hydraulic piston device at each stage includes a hydraulic cylinder and a piston block that divides the hydraulic cylinder into two piston chambers on the left and right, and the top of each piston chamber passes through the upper one-way The valve group is connected to the top of the gas-liquid heat exchange tower tank, and the bottom of each piston cavity is connected to the bottom of the gas-liquid heat exchange tower tank through a lower one-way valve group.

基于上述,所述恒压储气单元包括通过换气管道连通的恒压液体塔罐和恒压储气罐,所述恒压储气罐通过第一间气阀与最后一级气液热交换塔罐顶部的三通气阀相连通。Based on the above, the constant pressure gas storage unit includes a constant pressure liquid tower tank and a constant pressure gas storage tank connected through a ventilation pipe. The constant pressure gas storage tank exchanges heat with the last stage of gas and liquid through the first gas valve. The three-way vent valve on the top of the tower tank is connected.

基于上述,所述连接管道上设置有第二间气阀。Based on the above, a second air valve is provided on the connecting pipe.

基于上述,为了便于对曲柄连杆进行行程限位,所述曲柄连杆上设置有限位开关。Based on the above, in order to facilitate the stroke limitation of the crank connecting rod, a limit switch is provided on the crank connecting rod.

基于上述,所述控制系统包括CPU模块、数字量输入输出模块、模拟量输入模块和通讯模块,所述CPU模块分别与所述数字量输入输出模块、所述模拟量输入模块和所述通讯模块相连。Based on the above, the control system includes a CPU module, a digital input and output module, an analog input module and a communication module. The CPU module is connected to the digital input and output module, the analog input module and the communication module respectively. connected.

基于上述,所述气液热交换塔罐、所述恒压液体塔罐和所述恒压储气罐气液热交换塔罐上设置有温压一体传感器和液位传感器,所述温压一体传感器和所述液位传感器分别与所述控制系统相连接。Based on the above, the gas-liquid heat exchange tower tank, the constant pressure liquid tower tank and the constant pressure gas storage tank gas-liquid heat exchange tower tank are provided with a temperature-pressure integrated sensor and a liquid level sensor. The temperature-pressure integrated sensor The sensor and the liquid level sensor are respectively connected to the control system.

本实用新型相对现有技术具有实质性特点和进步,具体的说,本实用新型提供的曲柄连杆驱动等温压缩空气储能发电系统,储能时,PLC控制永磁三相同步电机做电动机使用,带动曲柄连杆做往复运动,在控温液体活塞单元中气体压缩产生的热量被液体吸收,使绝热压缩变为等温压缩,并将气体逐级压缩到恒压储气单元,恒压储气罐原有的液体被气体挤到恒压容器塔罐,确保了恒压储气罐中气体在压缩过程中始终保持恒压状态。The utility model has substantial features and improvements compared with the existing technology. Specifically, the utility model provides a crank connecting rod driven isothermal compressed air energy storage power generation system. When storing energy, the PLC controls a permanent magnet three-phase synchronous motor to be used as a motor. , driving the crank connecting rod to reciprocate, the heat generated by gas compression in the temperature-controlled liquid piston unit is absorbed by the liquid, turning adiabatic compression into isothermal compression, and compressing the gas step by step to the constant pressure gas storage unit, constant pressure gas storage The original liquid in the tank is squeezed by the gas into the constant pressure container tower tank, ensuring that the gas in the constant pressure gas storage tank always maintains a constant pressure during the compression process.

释能时,恒压容器塔罐中液体进入恒压储气罐中确保释能阶段恒压发电,气体逐级从恒压储气单元膨胀,在控温液体活塞单元中气体膨胀所需要的热量从压缩时的液体中获得,膨胀带动连杆做往复运动。When releasing energy, the liquid in the constant pressure container tower tank enters the constant pressure gas storage tank to ensure constant pressure power generation during the energy release stage. The gas expands step by step from the constant pressure gas storage unit. The heat required for gas expansion in the temperature-controlled liquid piston unit Obtained from the liquid during compression, the expansion drives the connecting rod to reciprocate.

与现有的螺杆空压机和膨胀机相比,该系统通过远端将储能、释能工作指令发送到PLC,PLC通过采集系统的温度、压力、液位、活塞位置等信息,通过该曲柄连杆控制永磁三相同步电机的工作状态和阀门的通断状态,进而实现等温压缩、膨胀空气,由于是永磁三相同步电机直接带动曲柄连杆进行运动,属于纯机械传动,不需要借助空气进行传动,从而降低了系统成本,提高了系统能量效率,进而提高压缩空气储能系统的发电效率。Compared with existing screw air compressors and expanders, this system sends energy storage and energy release work instructions to the PLC through the remote end. The PLC collects the system's temperature, pressure, liquid level, piston position and other information. The crank connecting rod controls the working status of the permanent magnet three-phase synchronous motor and the on-off status of the valve, thereby realizing isothermal compression and expansion of air. Since the permanent magnet three-phase synchronous motor directly drives the crank connecting rod to move, it is a purely mechanical transmission and does not It requires the use of air for transmission, thereby reducing system costs, improving system energy efficiency, and thereby improving the power generation efficiency of the compressed air energy storage system.

附图说明Description of drawings

图1是本实用新型提供的曲柄连杆驱动等温压缩空气储能发电系统结构连接关系示意图。Figure 1 is a schematic diagram of the structural connection relationship of the crank connecting rod driven isothermal compressed air energy storage power generation system provided by the utility model.

图2是本实用新型提供的曲柄连杆驱动等温压缩空气储能发电系统局部结构示意图。Figure 2 is a partial structural schematic diagram of the crank connecting rod driven isothermal compressed air energy storage power generation system provided by the utility model.

图3是本实用新型提供的曲柄连杆驱动等温压缩空气储能发电系统运行逻辑示意图。Figure 3 is a schematic diagram of the operation logic of the crank connecting rod driven isothermal compressed air energy storage power generation system provided by the utility model.

图中:1、左气液热交换塔罐;2、上三通水阀;3、上三通气阀;4、右气液热交换塔罐;5、连接管道;6、恒压液体塔罐;7、永磁三相同步电机;8、恒压储气罐;9、第一间气阀;10、输气管道;11、左上单通水阀;12、液压缸;13、左下单通水阀;14、下三通水阀;15、下三通气阀;16、右下单通水阀;17、右上单通水阀;18、一级液压活塞缸单元;19、二级液压活塞缸单元;20、三级液压活塞缸单元;21、第二间气阀;22、第三间气阀;23、活塞连杆;24、曲柄连杆。In the picture: 1. Left gas-liquid heat exchange tower tank; 2. Upper three-way water valve; 3. Upper three-way air valve; 4. Right gas-liquid heat exchange tower tank; 5. Connecting pipes; 6. Constant pressure liquid tower tank ; 7. Permanent magnet three-phase synchronous motor; 8. Constant pressure gas storage tank; 9. First air valve; 10. Gas pipeline; 11. Upper left single-way water valve; 12. Hydraulic cylinder; 13. Lower left single-way Water valve; 14. Lower three-way water valve; 15. Lower three-way air valve; 16. Lower right single water valve; 17. Upper right single water valve; 18. Primary hydraulic piston cylinder unit; 19. Secondary hydraulic piston Cylinder unit; 20. Three-stage hydraulic piston cylinder unit; 21. Second air valve; 22. Third air valve; 23. Piston connecting rod; 24. Crank connecting rod.

具体实施方式Detailed ways

下面通过具体实施方式,对本实用新型的技术方案做进一步的详细描述。The technical solution of the present invention will be described in further detail below through specific implementation modes.

实施例1Example 1

本实施例提供一种曲柄连杆驱动等温压缩空气储能发电系统,如图1、图2、图3所示,包括压缩空气储能装置、控制系统,所述控制系统用于控制所述压缩空气储能装置进行压缩储能和膨胀释能。This embodiment provides a crank-connecting rod driven isothermal compressed air energy storage power generation system, as shown in Figures 1, 2, and 3, including a compressed air energy storage device and a control system, and the control system is used to control the compression The air energy storage device performs compression energy storage and expansion energy release.

具体的,如图1所示,所述压缩空气储能装置包括控温液体活塞单元、分级等温压缩空气子系统和恒压储气单元。Specifically, as shown in Figure 1, the compressed air energy storage device includes a temperature-controlled liquid piston unit, a graded isothermal compressed air subsystem and a constant pressure gas storage unit.

所述压缩空气储能装置通过管道连接分级等温压缩空气子系统。所述控温液体活塞单元用于与所述分级等温压缩空气子系统进行液体往返传输,所述分级等温压缩空气子系统用于与所述恒压储气单元进行气体往返传输。The compressed air energy storage device is connected to the hierarchical isothermal compressed air subsystem through pipelines. The temperature-controlled liquid piston unit is used for liquid transfer back and forth with the hierarchical isothermal compressed air subsystem, and the hierarchical isothermal compressed air subsystem is used for gas transfer back and forth with the constant pressure gas storage unit.

具体的,如图2所示,所述分级等温压缩空气子系统包括三级等温液体活塞装置。Specifically, as shown in Figure 2, the hierarchical isothermal compressed air subsystem includes a three-stage isothermal liquid piston device.

每级等温液体活塞装置包括两个气液热交换塔罐,按照位置可分为左气液热交换塔罐1和右气液热交换塔罐4。Each stage of the isothermal liquid piston device includes two gas-liquid heat exchange tower tanks, which can be divided into left gas-liquid heat exchange tower tank 1 and right gas-liquid heat exchange tower tank 4 according to their positions.

每个气液热交换塔罐的顶部和底部分别通过三通水阀与控温液体活塞单元相连。每个气液热交换塔罐的顶部和底部分别设置有三通气阀。每一级气液热交换塔罐顶部的三通气阀通过连接管道5与下一级气液热交换塔罐底部的三通气阀相连,最后一级气液热交换塔罐顶部的三通气阀通过输气管道10与所述恒压储气单元相连。The top and bottom of each gas-liquid heat exchange tower tank are connected to the temperature-controlled liquid piston unit through a three-way water valve. Three-way vent valves are provided at the top and bottom of each gas-liquid heat exchange tower tank. The three-way air valve at the top of each stage of gas-liquid heat exchange tower tank is connected to the three-way air valve at the bottom of the next stage of gas-liquid heat exchange tower tank through connecting pipe 5, and the three-way air valve at the top of the last stage gas-liquid heat exchange tower tank passes through The gas transmission pipeline 10 is connected to the constant pressure gas storage unit.

其中,按照安装位置,三通气阀可分为上三通气阀3和下三通气阀15。三通水阀可分为上三通水阀2和下三通水阀14。Among them, according to the installation position, the three-way air valve can be divided into an upper three-way air valve 3 and a lower three-way air valve 15. The three-way water valve can be divided into an upper three-way water valve 2 and a lower three-way water valve 14.

所述控温液体活塞单元包括永磁三相同步电机7、活塞连杆23、曲柄连杆24和三级液压活塞装置。三级所述液压活塞装置通过所述活塞连杆23和所述曲柄连杆24与所述永磁三相同步电机7同步连接传动。The temperature-controlled liquid piston unit includes a permanent magnet three-phase synchronous motor 7, a piston connecting rod 23, a crank connecting rod 24 and a three-stage hydraulic piston device. The three-stage hydraulic piston device is synchronously connected and driven with the permanent magnet three-phase synchronous motor 7 through the piston connecting rod 23 and the crank connecting rod 24 .

每级所述液压活塞装置包括液压缸12和将所述液压缸12分为左右两个活塞腔的活塞块。每个所述活塞腔顶部分别通过上单向阀组与所述气液热交换塔罐的顶部相连通,每个所述活塞腔底部分别通过下单向阀组与所述气液热交换塔罐的底部相连通。Each stage of the hydraulic piston device includes a hydraulic cylinder 12 and a piston block that divides the hydraulic cylinder 12 into two left and right piston chambers. The top of each piston cavity is connected to the top of the gas-liquid heat exchange tower tank through an upper one-way valve group, and the bottom of each piston cavity is connected to the gas-liquid heat exchange tower through a lower one-way valve group. The bottom of the tank is connected.

具体地,按照安装位置,三级液压活塞装置可分为一级液压活塞缸单元18、二级液压活塞缸单元19和三级液压活塞缸单元20。Specifically, according to the installation position, the three-stage hydraulic piston device can be divided into a first-stage hydraulic piston cylinder unit 18, a second-stage hydraulic piston cylinder unit 19 and a third-stage hydraulic piston cylinder unit 20.

具体地,按照安装位置,上单向阀组可分为左上单通水阀11和右上单通水阀17,下单向阀组可分为左下单通水阀13和右下单通水阀16。Specifically, according to the installation position, the upper one-way valve group can be divided into an upper left single water valve 11 and an upper right single water valve 17, and the lower one-way valve group can be divided into a lower left single water valve 13 and a lower right single water valve. 16.

具体地,所述恒压储气单元包括通过换气管道连通的恒压液体塔罐6和恒压储气罐8。所述恒压储气罐8通过第一间气阀9和输气管道10与最后一级气液热交换塔罐顶部的三通气阀相连通。Specifically, the constant pressure gas storage unit includes a constant pressure liquid tower tank 6 and a constant pressure gas storage tank 8 that are connected through a ventilation pipe. The constant pressure gas storage tank 8 is connected to the three-way gas valve on the top of the last stage gas-liquid heat exchange tower tank through the first gas valve 9 and the gas transmission pipeline 10.

所述连接管道5上设置有第二间气阀21。其中,位于第二级等温液体活塞装置和第三级等温液体活塞装置之间的连接管道上设置有第二间气阀21和第三间气阀22。The connecting pipe 5 is provided with a second air valve 21 . Among them, a second air valve 21 and a third air valve 22 are provided on the connecting pipe between the second-stage isothermal liquid piston device and the third-stage isothermal liquid piston device.

具体地,本实施例中,为了便于对曲柄连杆24进行行程限位,所述曲柄连杆上设置有限位开关。所述控制系统包括CPU模块、数字量输入输出模块、模拟量输入模块和通讯模块,所述CPU模块分别与所述数字量输入输出模块、所述模拟量输入模块和所述通讯模块相连。Specifically, in this embodiment, in order to facilitate the stroke limitation of the crank connecting rod 24, a limit switch is provided on the crank connecting rod 24. The control system includes a CPU module, a digital input and output module, an analog input module and a communication module. The CPU module is connected to the digital input and output module, the analog input module and the communication module respectively.

具体地,永磁三相同步电机储能阶段做电动机使用,释能阶段做发电机使用;曲柄连杆为大齿轮机构,储能阶段将旋转运动转变为往复运动,释能阶段将往复运动转变为旋转运动。Specifically, the permanent magnet three-phase synchronous motor is used as a motor in the energy storage stage and as a generator in the energy release stage. The crank connecting rod is a large gear mechanism. The energy storage stage converts rotational motion into reciprocating motion, and the energy release stage converts reciprocating motion. for rotational motion.

实施例2Example 2

本实施例提供一种曲柄连杆驱动等温压缩空气储能发电系统,具体结构与实施例1的区别在于:本实施例中,所述气液热交换塔罐、所述恒压液体塔罐和所述恒压储气罐气液热交换塔罐上设置有温压一体传感器和液位传感器,所述温压一体传感器和所述液位传感器分别与所述控制系统相连接。This embodiment provides a crank-connecting rod driven isothermal compressed air energy storage power generation system. The difference between the specific structure and Embodiment 1 is that: in this embodiment, the gas-liquid heat exchange tower tank, the constant pressure liquid tower tank and The gas-liquid heat exchange tower tank of the constant pressure gas storage tank is provided with an integrated temperature and pressure sensor and a liquid level sensor, and the integrated temperature and pressure sensor and the liquid level sensor are respectively connected to the control system.

具体地,该曲柄连杆驱动等温压缩空气储能发电系统具体工作流程如下:Specifically, the specific working process of the crank-connecting rod-driven isothermal compressed air energy storage power generation system is as follows:

储能时,气液热交换塔罐中的所有的三个左气液热交换塔罐1分别充满气体,气液热交换塔罐中的所有三个右气液热交换塔罐4分别充满液体。When storing energy, all three left gas-liquid heat exchange tower tanks 1 in the gas-liquid heat exchange tower tank are filled with gas respectively, and all three right gas-liquid heat exchange tower tanks 4 in the gas-liquid heat exchange tower tank are filled with liquid respectively. .

在永磁三相同步电机和曲柄连杆作用下,推动活塞块往复运动,同时,控制系统读取限位开关状态判断活塞块位置。进而改变控温液体活塞单元中的单通阀门动作。Under the action of the permanent magnet three-phase synchronous motor and the crank connecting rod, the piston block is pushed to reciprocate. At the same time, the control system reads the limit switch status to determine the position of the piston block. This in turn changes the action of the one-way valve in the temperature-controlled liquid piston unit.

具体地,活塞块往左运行时,左上单通水阀11、右下单通水阀16阀门打开,右上单通水阀17、左下单通水阀13阀门闭合。Specifically, when the piston block moves to the left, the upper left single water valve 11 and the lower right single water valve 16 are opened, and the upper right single water valve 17 and the lower left single water valve 13 are closed.

活塞块往右运行时,左上单通水阀11、右下单通水阀16阀门闭合,右上单通水阀17、左下单通水阀13阀门打开。将三个右气液热交换塔罐4中的液体经由三个液压缸传送到三个左气液热交换塔罐1。When the piston block moves to the right, the upper left single water valve 11 and the lower right single water valve 16 are closed, and the upper right single water valve 17 and the lower left single water valve 13 are opened. The liquid in the three right gas-liquid heat exchange tower tanks 4 is transferred to the three left gas-liquid heat exchange tower tanks 1 via three hydraulic cylinders.

当三个左气液热交换塔罐1中的气体压缩后,经第一间气阀9、第二间气阀21和第三间气阀22迁移到恒压储气罐8中。直至三个右气液热交换塔罐4中的液体全部传送到三个左气液热交换塔罐1中。When the gas in the three left gas-liquid heat exchange tower tanks 1 is compressed, it migrates to the constant pressure gas storage tank 8 through the first gas valve 9, the second gas valve 21 and the third gas valve 22. Until all the liquids in the three right gas-liquid heat exchange tower tanks 4 are transferred to the three left gas-liquid heat exchange tower tanks 1 .

之后在永磁三相同步电机+曲柄连杆作用下,活塞块继续往复运动。改变上下三通水阀、上下三通气阀的状态,使液体再从三个右气液热交换塔罐4中的液体传送到三个左气液热交换塔罐1中,将三个右气液热交换塔罐4中的气体压缩迁移到恒压储气罐中。Afterwards, under the action of the permanent magnet three-phase synchronous motor + crank connecting rod, the piston block continues to reciprocate. Change the status of the upper and lower three-way water valves and the upper and lower three-way air valves, so that the liquid in the three right gas-liquid heat exchange tower tanks 4 is transferred to the three left gas-liquid heat exchange tower tanks 1, and the three right gas-liquid heat exchange tower tanks 1 The gas in the liquid heat exchange tower tank 4 is compressed and migrated to the constant pressure gas storage tank.

与此同时,PLC控制进入恒压储气罐的气体体积和从恒压储气罐排到恒压液体塔罐中液体体积一致,保证了恒压储气罐压强恒定。At the same time, the PLC controls the volume of gas entering the constant pressure gas storage tank to be consistent with the volume of liquid discharged from the constant pressure gas storage tank to the constant pressure liquid tower tank, ensuring constant pressure in the constant pressure gas storage tank.

如此往复,直到恒压储气罐气体含量和压强满足要求。释能过程与储能原理相同,释能过程通过PLC控制恒压储气罐气体膨胀,活塞块运动,推动永磁三相同步电动机发电。This goes back and forth until the gas content and pressure of the constant pressure gas storage tank meet the requirements. The energy release process has the same principle as energy storage. In the energy release process, the PLC controls the expansion of the gas in the constant pressure gas tank and the movement of the piston block to drive the permanent magnet three-phase synchronous motor to generate electricity.

最后应当说明的是:以上实施例仅用以说明本实用新型的技术方案而非对其限制;尽管参照较佳实施例对本实用新型进行了详细的说明,所属领域的普通技术人员应当理解:依然可以对本实用新型的具体实施方式进行修改或者对部分技术特征进行等同替换;而不脱离本实用新型技术方案的精神,其均应涵盖在本实用新型请求保护的技术方案范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: The specific implementation manner of the present utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the present utility model, they should all be included in the scope of the technical solution claimed by the present utility model.

Claims (6)

1.一种曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:包括压缩空气储能装置、控制系统,所述控制系统用于控制所述压缩空气储能装置进行压缩储能和膨胀释能;1. A crank-connecting rod driven isothermal compressed air energy storage power generation system, characterized by: including a compressed air energy storage device and a control system. The control system is used to control the compressed air energy storage device to perform compression, energy storage and expansion. release energy; 所述压缩空气储能装置包括控温液体活塞单元、分级等温压缩空气子系统和恒压储气单元,所述压缩空气储能装置通过管道连接分级等温压缩空气子系统;所述控温液体活塞单元用于与所述分级等温压缩空气子系统进行液体往返传输,所述分级等温压缩空气子系统用于与所述恒压储气单元进行气体往返传输;The compressed air energy storage device includes a temperature-controlled liquid piston unit, a graded isothermal compressed air subsystem and a constant pressure gas storage unit. The compressed air energy storage device is connected to the graded isothermal compressed air subsystem through a pipeline; the temperature-controlled liquid piston The unit is used for round-trip liquid transmission with the hierarchical isothermal compressed air subsystem, and the hierarchical isothermal compressed air subsystem is used for round-trip gas transmission with the constant pressure gas storage unit; 所述分级等温压缩空气子系统包括多级等温液体活塞装置,每级等温液体活塞装置包括两个气液热交换塔罐,每个气液热交换塔罐的顶部和底部分别通过三通水阀与控温液体活塞单元相连,每个气液热交换塔罐的顶部和底部分别设置有三通气阀,每一级气液热交换塔罐顶部的三通气阀通过连接管道与下一级气液热交换塔罐底部的三通气阀相连,最后一级气液热交换塔罐顶部的三通气阀与所述恒压储气单元相连;The hierarchical isothermal compressed air subsystem includes a multi-stage isothermal liquid piston device. Each stage of the isothermal liquid piston device includes two gas-liquid heat exchange tower tanks. The top and bottom of each gas-liquid heat exchange tower tank pass through a three-way water valve respectively. Connected to the temperature-controlled liquid piston unit, each gas-liquid heat exchange tower tank is equipped with a three-way air valve on the top and bottom respectively. The three-way air valve on the top of each gas-liquid heat exchange tower tank is connected to the next-stage gas-liquid heat exchanger tank through a connecting pipe. The three-way air valve at the bottom of the exchange tower tank is connected, and the three-way air valve at the top of the last stage gas-liquid heat exchange tower tank is connected with the constant pressure gas storage unit; 所述控温液体活塞单元包括永磁三相同步电机、活塞连杆、曲柄连杆和多级液压活塞装置,所述多级液压活塞装置通过所述活塞连杆和所述曲柄连杆与所述永磁三相同步电机同步连接传动;每级所述液压活塞装置包括液压缸和将所述液压缸分为左右两个活塞腔的活塞块,每个所述活塞腔顶部分别通过上单向阀组与所述气液热交换塔罐的顶部相连通,每个所述活塞腔底部分别通过下单向阀组与所述气液热交换塔罐的底部相连通。The temperature-controlled liquid piston unit includes a permanent magnet three-phase synchronous motor, a piston connecting rod, a crank connecting rod and a multi-stage hydraulic piston device. The multi-stage hydraulic piston device is connected to the piston connecting rod and the crank connecting rod through the piston connecting rod and the crank connecting rod. The permanent magnet three-phase synchronous motor is synchronously connected for transmission; the hydraulic piston device at each stage includes a hydraulic cylinder and a piston block that divides the hydraulic cylinder into two piston chambers on the left and right, and the top of each piston chamber passes through the upper one-way The valve group is connected to the top of the gas-liquid heat exchange tower tank, and the bottom of each piston cavity is connected to the bottom of the gas-liquid heat exchange tower tank through a lower one-way valve group. 2. 根据权利要求 1 所述的曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:所述恒压储气单元包括通过换气管道连通的恒压液体塔罐和恒压储气罐,所述恒压储气罐通过第一间气阀与最后一级气液热交换塔罐顶部的三通气阀相连通。2. The crank-connecting rod driven isothermal compressed air energy storage power generation system according to claim 1, characterized in that: the constant pressure gas storage unit includes a constant pressure liquid tower tank and a constant pressure gas storage tank connected through a ventilation pipeline. , the constant pressure gas storage tank is connected to the three-way gas valve on the top of the last stage gas-liquid heat exchange tower tank through the first gas valve. 3.根据权利要求2所述的曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:所述连接管道上设置有第二间气阀。3. The crank-connecting rod driven isothermal compressed air energy storage power generation system according to claim 2, characterized in that: the connecting pipe is provided with a second air valve. 4. 根据权利要求3 所述的曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:所述曲柄连杆上设置有限位开关。4. The crank-connecting rod-driven isothermal compressed air energy storage power generation system according to claim 3, characterized in that: a limit switch is provided on the crank-connecting rod. 5. 根据权利要求1至4 任一项所述的曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:所述控制系统包括CPU模块、数字量输入输出模块、模拟量输入模块和通讯模块,所述CPU模块分别与所述数字量输入输出模块、所述模拟量输入模块和所述通讯模块相连。5. The crank-connecting rod driven isothermal compressed air energy storage power generation system according to any one of claims 1 to 4, characterized in that: the control system includes a CPU module, a digital input and output module, an analog input module and a communication module, the CPU module is connected to the digital input and output module, the analog input module and the communication module respectively. 6. 根据权利要求2 所述的曲柄连杆驱动等温压缩空气储能发电系统,其特征在于:所述气液热交换塔罐、所述恒压液体塔罐和所述恒压储气罐气液热交换塔罐上均设置有温压一体传感器和液位传感器,所述温压一体传感器和所述液位传感器分别与所述控制系统相连接。6. The crank-connecting rod driven isothermal compressed air energy storage power generation system according to claim 2, characterized in that: the gas-liquid heat exchange tower tank, the constant pressure liquid tower tank and the constant pressure gas storage tank gas The liquid heat exchange tower tank is equipped with a temperature-pressure integrated sensor and a liquid level sensor, and the temperature-pressure integrated sensor and the liquid level sensor are respectively connected to the control system.
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