WO2024021891A1 - 一种电磁驱动式远程调压装置及调压方法 - Google Patents

一种电磁驱动式远程调压装置及调压方法 Download PDF

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Publication number
WO2024021891A1
WO2024021891A1 PCT/CN2023/098830 CN2023098830W WO2024021891A1 WO 2024021891 A1 WO2024021891 A1 WO 2024021891A1 CN 2023098830 W CN2023098830 W CN 2023098830W WO 2024021891 A1 WO2024021891 A1 WO 2024021891A1
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Prior art keywords
pressure
outlet
electromagnet
valve
regulator
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PCT/CN2023/098830
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English (en)
French (fr)
Inventor
周士钧
顾俊杰
王晨生
阮若冰
王展兴
季明刚
唐坚
沈黎芳
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上海飞奥燃气设备有限公司
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Publication of WO2024021891A1 publication Critical patent/WO2024021891A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery

Definitions

  • the invention relates to an electromagnetic-driven remote pressure regulating device and a pressure regulating method, belonging to the technical field of gas transmission and distribution equipment.
  • the traditional pilot is the core control component of indirect-acting voltage regulators and remote control voltage regulators, and is currently widely used in medium and medium voltage voltage regulating stations.
  • the existing remote control of the pressure regulator generally achieves the purpose of remote adjustment by adding an additional air chamber to the original valve circuit and changing the pressure of the air chamber to change the output pressure of the mechanical pressure regulator.
  • This type of remote pressure regulating system not only has a complex structure and many connection points, which results in a high risk of leakage, but also emits a certain amount of natural gas to the atmosphere or downstream during pressure regulation, creating certain safety risks.
  • the present invention provides an electromagnetic-driven remote voltage regulating device and voltage regulating method with a simple structure and higher safety performance.
  • the remote pressure regulating pilot adopts an electromagnetic pilot valve structure, adding a proportional electromagnet to the traditional mechanical pilot valve, and remotely controlling the output force of the electromagnet to change the output pressure of the pilot valve.
  • An electromagnetic-driven remote pressure regulating device includes an electromagnet, a pre-adjusting valve and a pilot valve integrated through a valve body 24; the pre-adjusting valve pre-decompresses the imported gas that may fluctuate, and ensures that the pre-adjusting valve is pre-decompressed.
  • the outlet pressure of the regulator is always greater than the outlet pressure of the regulator; the electromagnet is arranged on the outlet side of the main regulator of the pilot valve, and the push rod of the electromagnet directly acts on the pilot valve and the main regulator.
  • the electromagnet is fixedly connected to the valve body.
  • the outlet pressure of the main regulator will decrease at this time;
  • the outlet pressure of the main voltage regulator will increase; the maximum decrease in the outlet pressure of the main voltage regulator is positively related to the maximum current input by the electromagnet 4; the maximum increase in the outlet pressure of the main voltage regulator is related to The maximum amount of current reduced by electromagnet 4 is positively related.
  • the electromagnet 4 is a proportional type, and its input current and output adopt a linear relationship.
  • Figure 1-1 is a schematic diagram of the electromagnetic driven remote voltage regulating device of the present invention.
  • Figure 1-2 is a schematic diagram of the pre-adjusted components
  • Figure 1-3 is a schematic diagram of the pilot diaphragm assembly
  • Figure 1-4 is a schematic diagram of the spring chamber assembly
  • Figure 2 is a schematic diagram of the electromagnetic-driven remote voltage regulating device of the present invention applied in a joint debugging system
  • FIG. 3 is a schematic diagram corresponding to regions in the embodiment of the electromagnetic-driven remote voltage regulating device of the present invention.
  • An electromagnetic-driven remote pressure regulating device (hereinafter referred to as the pressure regulating device) adopts an overall modular design. See Figures 1-1 to 1-4 for details. It is mainly composed of three functional modules: a pre-regulating valve, a pilot valve and an electromagnet. Including pre-adjusted diaphragm assembly 15 - insert the pressure plate 15-3, O-ring 15-2, diaphragm 15-4, and spring seat 15-5 into the valve core 15-1 in sequence and tighten with nuts 15-6 Press down, pilot diaphragm assembly 4 - install the adjusting shaft 4-6, diaphragm 4-5, pressure plate 4-4, O-ring 4-3, spring II4-2 in sequence and use nut 4-1 Tighten the connection.
  • the spring cavity assembly 21-O-ring 21-6 is inserted into the groove of the lock nut 21-7 and screwed to the adjusting screw 21-8 as a whole. In turn, tighten the spring seat 21-2 and spring III21- 3. Insert the O-ring 21-4 and the spring seat 21-2 into the cylinder 21-1 and connect and seal it with the end cover 21-5. Screw the adjusting screw 21-8 into the end cover 21-5 and tighten it. Nut 21-7.
  • valve body 24, O-rings 17, 25 and pilot valve port 5 are respectively installed on the pre-adjusted valve cover 16.
  • the pilot diaphragm assembly 4 and the pre-adjusted valve cover 16 are inserted into the valve body 24, and the O-ring is Rings 6, 13 and filter 11 are installed on the positioning sleeve 12.
  • the O-ring 9 and the valve gasket 10 are put into the groove of the end cover 7.
  • the end cover 7 is tightly connected to the positioning sleeve 12.
  • the end cover 7 is then tightly connected to the pilot valve cover 1, the spring I3 is placed on the pilot diaphragm assembly 4, and the O-ring 6 is placed in the groove of the push rod 28 and is tightened with the pilot diaphragm assembly 4 together.
  • the spring 14 is set on the pre-adjusted diaphragm assembly 15 and then inserted into the pilot valve cover 1.
  • the screws 2 securely connect the pilot valve cover 1 and the pre-adjusted valve cover 16.
  • the O-ring 26 is installed. into the slot of joint 27 and tightly connected with the pre-adjusted valve cover 16. Insert the diaphragm 18 and pressure plate 19 in sequence and connect them tightly with nuts 20.
  • the connecting bracket 23 is put on the spring cavity assembly 21 and connected with the screws 22.
  • valve body 24 is tightly connected, the O-ring 29 is put into the groove of the adapter plate 31, the screw 33 tightly connects the electromagnet 32 to the adapter plate 31, and finally the screw 30 secures the adapter plate 31 to the pilot valve cover. 1Tightly connected.
  • the voltage regulating method of this electromagnetic-driven remote voltage regulating device is detailed in Figure 2.
  • the inlet of the electromagnetic-driven remote pressure regulating device is connected to the inlet of the gas pressure regulator, and the outlet is connected to the driving chamber of the pressure regulator.
  • the induction chamber of the pressure regulator senses the downstream outlet pressure.
  • the pressure plate maintains balance under the force of the sensing cavity and the driving cavity on both sides of the diaphragm, that is, the outlet pressure of the pressure regulating device remains unchanged, and the outlet pressure of the main pressure regulator is also stable.
  • a pressure transmitter is provided downstream of the pressure regulator, and the controller monitors the outlet pressure of the pressure regulator through a pressure sensor. The controller simultaneously transmits signals with the electromagnet of the voltage regulating device.
  • the input current of the electromagnet can be controlled to change the output force of the electromagnet, thereby changing the outlet pressure of the voltage regulator, ultimately achieving remote joint regulation control. Due to the spring effect, diaphragm effect and shell effect of the pressure regulator itself, when the flow rate changes, the original balance will be broken due to the change in the opening of the pressure plate/sleeve, and the outlet pressure will change.
  • the controller monitors that the downstream outlet pressure drops to the set range, the controller will reduce the input current supplied to the electromagnet, causing the outlet pressure of the pilot to increase, which in turn increases the force of the regulator drive cavity and pushes the The pressure plate/sleeve is opened.
  • both ends of the pressure plate remain balanced so that the pressure is stable within the range; conversely, when the outlet pressure increases beyond the set range, the controller will Increasing the input current supplied to the electromagnet reduces the outlet pressure of the pressure regulating device, thereby pushing the pressure plate/sleeve of the main pressure regulator to move to the right, and the opening of the main pressure regulator becomes smaller, causing the downstream pressure to decrease.
  • the above adjustment process is directly driven by current, and the electromagnet input current has a linear relationship with the output force. Therefore, the stable output current enables the regulator to quickly stabilize the outlet pressure at a stable pressure when the flow rate changes greatly or the inlet pressure fluctuates greatly. Accuracy is within AC range.
  • Use current signals to connect the voltage regulating device and the voltage regulator The regulation control effectively avoids the pressure fluctuation caused by the pressure regulator when the flow rate changes, which interferes with the system control, greatly improving the stability and reliability of the system operation.
  • pilot valve spring force Main regulator outlet pressure + electromagnetic force.
  • the electromagnetic force can be changed.
  • the outlet pressure of the main voltage regulator will decrease; conversely, if the current is reduced, the outlet pressure of the main voltage regulator will increase;
  • the maximum decrease in pressure at the outlet of the regulator is positively related to the maximum current input by electromagnet 4; the maximum increase in pressure at the outlet of the main regulator is positively related to the maximum current decreased by electromagnet 4.
  • the electromagnet 4 is a proportional type, and its input current and output adopt a linear relationship, and the electrical signal is highly sensitive and fast, and is not affected by changes in the air source, making the overall adjustment more stable.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)

Abstract

本发明涉及一种电磁驱动式远程调压装置，包括电磁铁、以及通过阀体集成为一体的预调阀、导阀；所述预调阀将可能波动的进口气体先进行预减压，并且保证预调阀出口压力始终大于调压器出口压力；所述电磁铁设置于所述导阀的主调压器出口一侧，所述电磁铁的顶杆直接作用于导阀的与主调压器出口连通的一侧，使得导阀的阀瓣的平衡方程为：导阀弹簧力＝主调压器出口压力+电磁力。本发明采用机械-电磁组合控制结构，有效保证指挥器能在不排气的情况下进行远程控制，同时也要考虑失电后的系统安全性。

Description

一种电磁驱动式远程调压装置及调压方法 技术领域
本发明涉及一种电磁驱动式远程调压装置及调压方法，属于燃气输配设备技术领域。
背景技术
传统的指挥器是间接作用式调压器和远程控制调压器的核心控制元件，目前在高中压调压场站得到广泛应用。
现有的调压器远程控制一般通过在原有阀路上增加额外的气腔，通过改变气腔压力从而改变机械式调压器的输出压力，从而实现远程调节的目的。此种远程调压系统不仅结构复杂、连接点多，从而泄露风险大，而且在调压时会向大气或者是下游排放一定的天然气，产生一定的安全风险。
发明内容
为了解决上述问题，本发明提供一种结构简单、安全性能更高的电磁驱动式远程调压装置及调压方法。远程调压指挥器采用电磁导阀结构，在传统的机械导阀上增加比例式电磁铁，通过远程控制电磁铁的输出力从而改变导阀的输出压力。
本发明采取以下技术方案：
一种电磁驱动式远程调压装置，包括电磁铁、以及通过阀体24集成为一体的预调阀、导阀；所述预调阀将可能波动的进口气体先进行预减压，并且保证预调阀出口压力始终大于调压器出口压力；所述电磁铁设置于所述导阀的主调压器出口一侧，所述电磁铁的顶杆直接作用于导阀的与主调 压器出口连通的一侧，并使得导阀的阀瓣3-2的平衡方程为：导阀弹簧力＝主调压器出口压力+电磁力。
优选的，所述电磁铁与阀体固定连接。
一种上述的电磁驱动式远程调压装置的调压方法，当初始无电磁力作用时候，主调压器出口压力仅与导阀的弹簧力有关，通过设定好弹簧力，使得主调压器的出口压力保持稳定；当通过控制器对电磁铁4输入低电流后，即可改变电磁力，根据导阀的阀瓣3-2的平衡方程，此时主调压器出口压力会降低；反之，减小所述电流大小，主调压器出口压力会升高；主调压器出口压力最大降低量与电磁铁4输入的最大电流正相关；主调压器出口压力最大升高量与电磁铁4降低的最大电流量正相关。
优选的，电磁铁4为比例型，其输入电流和输出采用线性关系。
本发明的有益效果在于：
1)提供了一种将过滤器、预调阀和导阀高度集成的调压装置(指挥器)，有效降低因接口太多引起的泄露风险；
2)采用机械-电磁组合控制结构，有效保证指挥器能在不排气的情况下进行远程控制，同时也要考虑失电后的系统安全性；
3)提供了一种高可靠性远程联调控制方法，通过电流信号对电磁导阀与调压器之间进行联调控制，有效避免了调压器在大小流量变化时产生的压力波动对系统的控制干扰，极大提高了系统运行的稳定性和可靠性。
附图说明
图1-1为本发明电磁驱动式远程调压装置的示意图；
图1-2为预调组件示意图；
图1-3为指挥器膜片组件示意图；
图1-4为弹簧腔组件示意图；
图2为本发明电磁驱动式远程调压装置应用于联调系统中的原理图；
图3为本发明电磁驱动式远程调压装置的实施方式中分区域的对应示意图。
具体实施方式
下面结合附图和具体实施例对本发明进一步说明。
首先，对于本发明电磁驱动式远程调压装置的结构进行说明。
一种电磁驱动式远程调压装置(以下简称调压装置)采用整体模块化设计，详见图1-1～1-4，主要由预调阀、导阀及电磁铁三大功能模块组成，包括预调膜片组件15——依次将压盘15-3、O形圈15-2、膜片15-4、弹簧座15-5套入阀芯15-1上并用螺母15-6紧固压住，指挥器膜片组件4——依次将调节轴4-6、膜片4-5、压盘4-4、O形圈4-3、弹簧II4-2装入并用螺帽4-1紧固连接，弹簧腔组件21——O形圈21-6套入锁紧螺母21-7凹槽内并整体旋接到调节螺杆21-8上，依次将弹簧座21-2、弹簧III21-3、O形圈21-4、弹簧座21-2套入筒体21-1内并用端盖21-5连接封住，调节螺杆21-8旋入到端盖21-5上并拧紧锁紧螺母21-7。
阀体24，O形圈17、25和导阀阀口5分别装在预调阀盖16上，依次将指挥器膜片组件4和预调阀盖16套入阀体24内，将O形圈6、13、过滤器11装在定位套12上，O形圈9和阀垫10放入端盖7的凹槽内，将端盖7与定位套12紧固连接，O形圈8套在端盖7并随之与导阀阀盖1紧固连接，弹簧I3套在指挥器膜片组件4上，O形圈6套入推杆28槽内并一同与指挥器膜片组件4紧固连接，弹簧14套在预调膜片组件15后再一同插入导阀阀盖1内，螺钉2将导阀阀盖1与预调阀盖16紧固连接，O形圈26装 入接头27槽内并一同与预调阀盖16紧固连接，依次套入膜片18、压盘19并用螺母20紧固连接，连接支架23套在弹簧腔组件21上并用螺钉22将其与阀体24紧固相连，O形圈29放入转接板31凹槽内，螺钉33将电磁铁32紧固连接到转接板31上，最后螺钉30将转接板31与导阀阀盖1紧固相连。
本电磁驱动式远程调压装置的调压方法详见图2。电磁驱动式远程调压装置进口与燃气调压器进口连接，出口与调压器的驱动腔连接，调压器的感应腔感应下游出口压力。压盘在膜片两侧的感应腔和驱动腔体作用力下保持平衡，即调压装置的出口压力不变，主调压器的出口压力也稳定不变。调压器下游设一压力变送器，控制器通过压力传感器来监控调压器的出口压力。控制器同时与调压装置的电磁铁进行信号传输，通过控制器可以控制电磁铁的输入电流从而改变电磁铁的输出力，进而改变调压器的出口压力，最终实现远程联调控制。由于调压器自身存在弹簧效应、膜片效应和壳体效应，在流量变化时，由于压盘/套筒开度产生变化，使得原有的平衡会被打破，从而出口压力会产生变化。当控制器监测到下游的出口压力降低至设定范围时，控制器会将供给电磁铁的输入电流降低，使得指挥器的出口压力增大，进而使得调压器驱动腔的力增大，推动压盘/套筒打开，当下游出口压力增大到设定范围时，压盘两端保持平衡，使得压力稳定在范围内；反之，当出口压力增大到设定范围以外时，控制器会将供给电磁铁的输入电流增加，使得调压装置的出口压力减小，从而推动主调压器压盘/套筒右移，主调压器开度变小，使得下游压力减小。以上调节过程采用电流直接驱动，电磁铁输入电流与输出力呈线性关系，因此稳定的输出电流使得调压器在流量变化较大或者进口压力波动较大时，出口压力也能迅速稳定在稳压精度AC范围内。利用电流信号对调压装置与调压器之间进行联 调控制，有效避免了调压器在大小流量变化时产生的压力波动对系统的控制干扰，极大提高了系统运行的稳定性和可靠性。
结合图3，当燃气调压器进口端的气体进入调压装置进口端后，会先经过内置过滤器1，将可能会导致卡堵的杂质进行过滤。过滤后的气体会经过预调功能区2经过减压，由于预调功能区2感应腔与主调压器出口压力连接，且感应腔内设置弹簧，因此预调功能区2阀瓣的平衡方程为：主调压器出口压力+弹簧＝预调功能区出口压力。预调功能区2将可能波动的进口气体先进行预减压，并且保证出口压力始终大于调压器出口压力。
经过预调功能区2预减压的气体进入导阀功能区3进口端，由于此时的气体受到预调功能区2的减压作用，因此不会过大的受到系统进口压力的影响，保证系统的稳定。导阀功能区3的阀瓣3-2同时受到弹簧力、主调压器出口压力和电磁力的作用，因此导阀功能区3的阀瓣3-2的平衡方程为：导阀弹簧力＝主调压器出口压力+电磁力。当初始无电磁力作用，此时主调压器出口压力仅与弹簧力有关，通过设定好弹簧力，即可使得主调压器的出口压力保持稳定。当通过控制器对电磁铁4输入低电流后，即可改变电磁力，此时主调压器出口压力会降低；反之，减小所述电流大小，主调压器出口压力会升高；主调压器出口压力最大降低量与电磁铁4输入的最大电流正相关；主调压器出口压力最大升高量与电磁铁4降低的最大电流量正相关。
。因此即使电磁铁4失效或者断电，此时主调压器的出口压力会与设定的弹簧力保持平衡，不会异常升高，保证系统的安全。同时电磁铁4为比例型，其输入电流和输出采用线性关系，并且电信号具有高敏感性和快速性，不受气源的变化而波动，使得整体调节更加稳定。
以上是本发明的优选实施例，本领域普通技术人员还可以在此基础上 进行各种变换或改进，在不脱离本发明总的构思的前提下，这些变换或改进的前提下，这些变换或改进都应当属于本发明要求保护的范围之内。

Claims (4)

  1. 一种电磁驱动式远程调压装置，其特征在于：
    包括电磁铁、以及通过阀体(24)集成为一体的预调阀、导阀；
    所述预调阀将可能波动的进口气体先进行预减压，并且保证预调阀出口压力始终大于调压器出口压力；
    所述电磁铁设置于所述导阀的主调压器出口一侧，所述电磁铁的顶杆直接作用于导阀的与主调压器出口连通的一侧，使得导阀的阀瓣(3-2)的平衡方程为：导阀弹簧力＝主调压器出口压力+电磁力。
  2. 如权利要求1所述的电磁驱动式远程调压装置，其特征在于：所述电磁铁与阀体固定连接。
  3. 一种权利要求1所述的电磁驱动式远程调压装置的调压方法，其特征在于：
    当初始无电磁力作用时候，主调压器出口压力仅与导阀的弹簧力有关，通过设定好弹簧力，使得主调压器的出口压力保持稳定；
    当通过控制器对电磁铁(4)输入电流后，即可改变电磁力，根据导阀的阀瓣(3-2)的平衡方程，此时主调压器出口压力会降低；
    反之，减小所述电流大小，主调压器出口压力会升高；
    主调压器出口压力最大降低量与电磁铁(4)输入的最大电流正相关；主调压器出口压力最大升高量与电磁铁(4)降低的最大电流量正相关。
  4. 如权利要求3所述的电磁驱动式远程调压装置的调压方法，其特征在于：电磁铁(4)为比例型，其输入电流和输出采用线性关系。
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