Control device and control method for emergency operation of diesel generator sets
阅读说明：本技术 一种柴油发电机组应急操作的控制装置及其控制方法 (Control device and control method for emergency operation of diesel generator sets ) 是由 万新云 陈棋 景元辉 于 2019-10-14 设计创作，主要内容包括：一种柴油发电机组应急操作的控制装置及其控制方法,其为一种手动控制装置,并可通过接插件插头XP连接于柴油发电机组控制系统的控制面板,其包括接插件插头XP、微型断路器QF01、钥匙开关SA01、怠速-全速钮子开关SA02、进气预热-合闸钮子开关SA03、低油压指示灯HL01、高水温指示灯HL02。手动应急控制装置单独作为一个装置,方便接入、撤出,应急功能完整,控制效果全面、高效；电站控制系统的控制面板上移除了手动应急的器件,面板布局清爽、布局尺寸可以更小,节约安装空间。(control devices for emergency operation of diesel generating set and control method thereof, it is manual control devices, and can be connected to the control panel of the control system of the diesel generating set through the connector plug XP, it includes the connector plug XP, miniature circuit breaker QF01, key switch SA01, idle-full speed toggle SA02, enter air preheat-close toggle SA03, low oil pressure indicator HL01, high water temperature indicator HL02. the manual emergency control device is used as devices alone, convenient to insert, withdraw from, the emergency function is complete, the control effect is comprehensive, high-efficient, remove the device of manual emergency on the control panel of the control system of the power station, the panel layout is salubrious, the overall dimension can be smaller, save the installation space.)
The control device for the emergency operation of diesel generating sets is manual control devices and can be connected to a control panel of a diesel generating set control system through a connector plug XP, and comprises the connector plug XP, a miniature circuit breaker QF01, a key switch SA01, an idle-full speed button sub-switch SA02, an air inlet preheating-closing button sub-switch SA03, a low oil pressure indicator HL01 and a high water temperature indicator HL02, wherein the air inlet preheating-closing button sub-switch SA03 comprises an air inlet preheating button SA03_ L and an air inlet preheating button SA03_ R, and the control device is characterized in that a starting control item on the connector plug XP is connected to the key switch SA01 through a lead J102, an oil valve, a closing switch, an air inlet preheating switch, an idle-full speed switch, a high oil pressure control item and a low oil pressure control item are respectively connected to a key switch SA01 through leads J103, J106, J105, J104, J108 and J107, and the miniature circuit breaker J01 and the miniature circuit breaker 01 are respectively connected in parallel through leads J01 and the plug 01.
2. The control device for the emergency operation of diesel generating sets according to claim 1, wherein a low oil pressure indicator lamp HL01 is connected to the lead J107, a high water temperature indicator lamp HL02 is connected to the lead J108, an idle-full speed button switch SA02 is connected to the lead J104, an intake air preheating button SA03_ L is connected to the lead J105, and a closing button SA03_ R is connected to the lead J106.
3. The control method of the diesel generator set emergency operation control devices, according to the claim 1, characterized in that, the DC power lead 200 is introduced into the diesel generator set emergency operation device through the connector plug XP, the DC power lead 200 is output through the miniature circuit breaker QF01 to supply the DC working power lead 100 of the diesel generator set emergency operation device, when the DC power is short-circuited or overloaded, the miniature circuit breaker QF01 trips, the DC working power lead J100 is connected to the terminal of the key switch SA01, the key switch SA01 is operated to be at the start position and maintained, the lead J103 and the lead J102 on the terminal of the key switch SA01 are connected to the lead J100 on the terminal of the key switch SA01, the oil valve lead J103 and the start lead J102 output high potential through the connector plug, the DC 24V voltage is between the high potential XP and the DC power source negative pole, the diesel generator set is started, after the diesel generator set is started, the key switch SA01 is released successfully, the key switch SA01 returns to the run position, the diesel switch SA01 terminal is not connected to the lead J100 and the DC working power lead J102, the DC working power supply lead 100 is connected to the connector plug with the high potential XP, the DC working voltage is connected to the high potential connector plug 24V output through the connector plug, the DC working voltage is connected to the high potential plug 24.
4. The control method of claim 3, wherein when the diesel generating set runs at idle speed, the idle-full speed button switch SA02 on the emergency operation device of the diesel generating set is operated to be at full speed, the lead J103 on the terminal of the idle-full speed button switch SA02 is communicated with the lead J104, the full speed lead J104 outputs high potential through a connector plug XP, the high potential and the negative pole of the direct current power supply have 24V direct current voltage, and the diesel generating set runs at full speed; and operating an idle-full speed button switch SA02 on the emergency operation device of the diesel generator set to an idle position, disconnecting a lead J103 and a lead J104 on a terminal of an idle-full speed button switch SA02, ensuring that the full-speed lead J104 has no high potential, and outputting a direct-current 24V voltage between the high potential and the negative electrode of the direct-current power supply through a connector plug XP to ensure that the diesel generator set runs at an idle speed.
5. The control method according to claim 4, characterized in that after the diesel generating set normally operates, an air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is operated to be in a closing position, a lead J103 on a terminal of an air inlet preheating-closing button switch SA03 is communicated with a lead J106, the closing lead J106 outputs high potential through a connector plug XP, and the diesel generating set performs closing; after the diesel generating set is successfully switched on, the air inlet preheating-switching knob switch SA03 is operated to be at the position of 0, no high potential is output by a connector assembly plug XP through a switching-on lead J106, and the diesel generating set executes switching-off.
6. The control method according to claim 5, wherein in the non-starting state of the diesel generator set, the key switch SA01 is placed in the running position, and a lead J100 on a terminal of the key switch SA01 is communicated with a lead J103; an air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is operated to be positioned at an air inlet preheating position and maintained, a lead J103 on a terminal of an air inlet preheating-closing button switch SA03 is communicated with a lead J105, the air inlet preheating lead J105 outputs high potential through a connector plug XP, and the air inlet preheating device of the diesel generating set works; an air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is loosened, an air inlet preheating-closing button switch SA03 returns to the position of 0, a lead J103 on a terminal of an air inlet preheating-closing button switch SA03 is not communicated with a lead J105, no high potential of the air inlet preheating lead J105 is output through a connector plug XP, and the air inlet preheating device of the diesel generating set stops working.
7. The control method according to claim 6, characterized in that when the diesel generating set has a low oil pressure fault, a low oil pressure lead J107 led in through a connector plug XP has a low potential input, and a low oil pressure indicator lamp HL01 on the emergency operation device of the diesel generating set is lightened; when the diesel generating set has a high water temperature fault, a high water temperature lead J108 led in through a connector plug XP has low potential input, and a high water temperature indicator HL02 on the emergency operation device of the diesel generating set is lightened.
Technical Field
The invention relates to the field of diesel generating sets, in particular to control devices and control methods thereof for emergency operation of diesel generating sets, which are devices capable of finishing starting, stopping operation and on-board fault state indication of the diesel generating sets in an emergency state (debugging or failure of a set controller or maintenance or state of a low-temperature environment).
Background
A control system configured by an existing intelligent power station power supply system generally has two working modes of manual emergency control and automatic control, and the manual and automatic control modes are mutually backed up, so that the task reliability of a power station is improved.
The manual emergency essential functions are as follows: controlling: start-stop, idle-full speed, etc. All the devices including manual emergency control and automatic control (including unit controller, etc.) are placed on the control screen panel of the power station configuration, and the following disadvantages exist:
1) the control screen panel has more devices and is not fresh and cool in layout;
2) the layout size of the panel is large.
Based on the fact that the manual emergency control is not frequently used (used in the state of debugging or machine group controller failure or maintenance or low-temperature environment), the manual emergency control is considered to be used as devices independently, access and withdrawal are convenient, the emergency function is complete, devices for manual emergency are removed from a control panel of the power station control system, the panel layout is clean, and the layout size can be smaller.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides diesel generating set emergency operation control devices and a control method thereof, wherein the manual emergency control device is independently used as devices, is convenient to access and withdraw, has complete emergency function and comprehensive and efficient control effect, manual emergency devices are removed from a control panel of a power station control system, the panel layout is fresh and cool, the layout size can be smaller, and the installation space is saved.
The invention discloses a control device and a control method for emergency operation of diesel generator sets, which are concretely realized as follows:
the emergency operation electric realization device of the diesel generating set, which comprises a connector plug, a miniature circuit breaker, a key switch, an idle speed-full speed toggle switch, an air inlet preheating-closing toggle switch, a low oil pressure indicator lamp, a high water temperature indicator lamp and the like, can complete the necessary starting, stopping, idle speed-full speed, closing, opening and air inlet preheating control functions of a manual emergency state and the indication of the fault states of high water temperature and low oil pressure.
The electric realization device for emergency operation of the diesel generating set consists of a connector plug XP, a miniature circuit breaker QF01, a key switch SA01, an idle speed-full speed button switch SA02, an air inlet preheating-closing button switch SA03 (SA 03_ L air inlet preheating and SA03_ R closing), a low oil pressure indicator HL01 and a high water temperature indicator HL 02.
Before the emergency operation device of the diesel generating set is put into operation, a connector plug XP on the emergency operation device of the diesel generating set is required to be well connected with a connector socket on a control system of the diesel generating set. Control signals in the diesel generating set emergency operation device are output to a diesel generating set control system through a connector plug XP to execute corresponding actions, and a direct-current power supply, a low oil pressure state and a high water temperature state in the diesel generating set control system are input into the diesel generating set emergency operation device through the connector plug XP.
When the direct current power supply is short-circuited or overloaded, the miniature circuit breaker QF01 trips for protection.
The key switch SA01 is operated to realize starting and oil valve signal output control; idle-full speed toggle SA02 realizes idle and full speed signal output control; the air inlet preheating-closing button switch SA03 realizes the output control of air inlet preheating and closing signals; a low oil pressure indicator lamp HL01 indicates a low oil pressure fault; the high water temperature indicator lamp HL02 indicates a high water temperature fault.
In order to achieve the purpose, the invention adopts the technical scheme that:
kinds of diesel generating set emergency operation controlling device, it is kinds of manual controlling devices, and can connect to the control panel of the control system of the diesel generating set through the plug connector XP, it includes plug connector XP, miniature circuit breaker QF01, key switch SA01, idling-full speed button sub-switch SA02, enter air preheat-close button sub-switch SA03, low oil pressure pilot lamp HL01, high water temperature pilot lamp HL02, enter air preheat-close button sub-switch SA03 includes entering air preheat button SA03_ L, close button SA03_ R, wherein, start control item on plug connector XP connects to key switch SA01 through lead J102, oil valve, close, enter air preheat, idling-full speed, high oil pressure control item on plug connector XP separately through lead J103, J106, J105, J104, J108, J107 connect to key switch SA 3, lead J103, J106, J105, J104J 108, J107, J737 are parallel connections of the miniature circuit breaker 38100, plug connector 4642, plug connector 46100, plug 01, plug.
, a low oil pressure indicator HL01 is connected to the lead J107, a high water temperature indicator HL02 is connected to the lead J108, an idle-full speed button switch SA02 is connected to the lead J104, an air intake preheating button SA03_ L is connected to the lead J105, and a closing button SA03_ R is connected to the lead J106.
A control method of a control device for emergency operation of a diesel generator set is characterized in that a direct current
, when the diesel generating set runs at an idle speed, an idle-full speed button switch SA02 on the emergency operation device of the diesel generating set is operated to be in a full-speed position, a lead J103 on a terminal of an idle-full speed button switch SA02 is communicated with a lead J104, the full-speed lead J104 outputs high potential through a connector plug XP, direct current 24V voltage exists between the high potential and the negative electrode of the direct current power supply, the diesel generating set runs at the full speed, an idle-full speed button switch SA02 on the emergency operation device of the diesel generating set is operated to be in an idle speed position, the lead J103 on the terminal of the idle-full-speed button switch SA02 is disconnected with the lead J104, the lead J104 does not have the high potential, direct current 24V voltage exists between the high potential and the negative electrode of the direct current power supply.
, after the diesel generating set operates normally, an air inlet preheating and closing button switch SA03 on the diesel generating set emergency operation device is operated to be in a closing position, a lead J103 on a terminal of the air inlet preheating and closing button switch SA03 is communicated with a lead J106, the closing lead J106 outputs high potential through a connector plug XP, the diesel generating set performs closing, after the diesel generating set is successfully closed, the air inlet preheating and closing button switch SA03 is operated to be in a0 position, no high potential is output through the connector plug XP by the closing lead J106, and the diesel generating set performs opening.
, when the diesel generating set is not started, the key switch SA01 is set to the running position, the lead J100 and the lead J103 on the terminal SA01 are communicated, the air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is operated to the air inlet preheating position and is maintained, the lead J103 and the lead J105 on the terminal SA03 of the air inlet preheating-closing button switch are communicated, the air inlet preheating lead J105 outputs high potential through a connector plug XP, the air inlet preheating device of the diesel generating set works, the air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is released, the air inlet preheating-closing button switch SA03 returns to the 0 position, the lead J103 and the lead J105 on the terminal SA03 of the air inlet preheating-closing button switch are not communicated, no high potential is output through the connector plug XP by the air inlet preheating lead J105, and the air inlet preheating device of the diesel generating set stops working.
, when the diesel generator set has low oil pressure fault, the low oil pressure lead J107 led in by the connector plug XP has low potential input, the low oil pressure indicator HL01 on the emergency operating device of the diesel generator set is on, when the diesel generator set has high water temperature fault, the high water temperature lead J108 led in by the connector plug XP has low potential input, the high water temperature indicator HL02 on the emergency operating device of the diesel generator set is on.
According to the control devices for emergency operation of the diesel generating set and the control method thereof, the manual emergency control device is independently used as devices, is not connected with the automatic control device to the same control panel, is convenient to access and withdraw, has complete emergency function and comprehensive and efficient control effect, manual emergency devices are removed from the control panel of the power station control system, the panel layout is fresh and cool, the layout size can be smaller, and the installation space is saved.
Drawings
Fig. 1 is a schematic view of a control device for emergency operation according to the present invention.
In the figure: XP: a connector plug; QF 01: a miniature circuit breaker; SA 01: a key switch; SA 02: idle-full speed toggle switches; SA 03: an air inlet preheating-closing button switch (SA 03_ L air inlet preheating and SA03_ R closing); HL 01: a low oil pressure fault indicator light; HL 02: a high water temperature fault indicator light; 200. j100, J102, J103, J104, J105, J106, J107, J108: the wire/lead/control line numbers on the terminals of the XP, QF01, etc. devices are labeled.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete description of the technical solutions of the embodiments of the present invention will be given below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of of the present invention, rather than all embodiments.
The present invention is further described in detail below with reference to the attached figures.
The invention aims to design electrical control devices for emergency operation of diesel generating sets and control methods thereof, which are convenient to access and withdraw, can complete control functions of manual start-stop, idling-full speed, preheating and the like of the diesel generating sets under the conditions of power station debugging or set controller failure or maintenance or low-temperature environment, can indicate low-oil pressure and high-water temperature failures of the diesel generating sets, and can work in cooperation with operation control in an automatic control mode to improve the task reliability of the power station.
As shown in fig. 1, the diesel generator set emergency operation control devices are manual control devices, and can be connected to a control panel of a diesel generator set control system through a connector plug XP, and include the connector plug XP, a miniature circuit breaker QF01, a key switch SA01, an idle-full speed toggle SA02, an intake preheating-closing toggle SA03, a low oil pressure indicator HL01, a high water temperature indicator HL02, an intake preheating-closing toggle SA03 including an intake preheating toggle SA03_ L, a closing toggle SA03_ R, a start control item on the connector plug XP is connected to the key switch SA01 through a lead J102, an oil valve, a closing switch, an intake preheating switch, an idle-full speed switch, a high oil temperature, a low oil pressure control item is connected to the key switch SA 3 through leads J103, J106, J105, J104, J108, J107, and a plug 01, and a miniature circuit breaker 737 are connected in parallel with the connector plug XP through leads 38100 and a miniature circuit breaker 73742, respectively.
The lead J107 is connected with a low oil pressure indicator lamp HL01, the lead J108 is connected with a high water temperature indicator lamp HL02, the lead J104 is connected with an idle-full speed button switch SA02, the lead J105 is connected with an air inlet preheating button SA03_ L, and the lead J106 is connected with a closing button SA03_ R.
In fig. 1: XP: a connector plug; QF 01: a miniature circuit breaker; SA 01: a key switch; SA 02: idle-full speed toggle switches; SA 03: an air inlet preheating-closing button switch (SA 03_ L air inlet preheating and SA03_ R closing); HL 01: a low oil pressure fault indicator light; HL 02: a high water temperature fault indicator light; 200. j100, J102, J103, J104, J105, J106, J107, J108: the wire/lead/control line numbers on the terminals of the XP, QF01, etc. devices are labeled.
The invention discloses a control device for diesel generator set emergency operation and a control method thereof, and the realization method comprises the following steps:
the electric realization device for emergency operation of the diesel generating set comprises/comprises a connector plug XP, a miniature circuit breaker QF01, a key switch SA01, an idle speed-full speed button switch SA02, an air inlet preheating-closing button switch SA03 (SA 03_ L air inlet preheating and SA03_ R closing), a low oil pressure indicator lamp HL01 and a high water temperature indicator lamp HL 02. Before the diesel generating set emergency operation electric control device is put into operation, a connector plug XP on the diesel generating set emergency operation device needs to be well connected with a connector socket on a diesel generating set control system.
The direct-current
When the diesel generating set runs at an idle speed, an idle-full speed button switch SA02 on the emergency operation device of the diesel generating set is operated to be in a full-speed position, a lead J103 on a terminal of an idle-full speed button switch SA02 is communicated with a lead J104, the full-speed lead J104 outputs a high potential (direct current 24V voltage exists between the high potential and the negative pole of a direct current power supply) through a connector plug XP, and the diesel generating set runs at a full speed. When an idling-full-speed button switch SA02 on the emergency operation device of the diesel generating set is operated to be in an idling position, a lead J103 on a terminal of an idling-full-speed button switch SA02 is disconnected with a lead J104, no high potential exists on the full-speed lead J104 (direct current 24V voltage exists between the high potential and the negative pole of a direct current power supply), the high potential is output through a connector plug XP, and the diesel generating set runs in an idling mode.
After the diesel generating set normally operates, an air inlet preheating and closing button switch SA03 on the emergency operation device of the diesel generating set is operated to be at a closing position, a lead J103 on a terminal of an air inlet preheating and closing button switch SA03 is communicated with a lead J106, the closing lead J106 outputs high potential (direct current 24V voltage exists between the high potential and the negative pole of a direct current power supply) through a connector plug XP, and the diesel generating set performs closing. After the diesel generating set is successfully switched on, the air inlet preheating-switching knob switch SA03 is operated to be at the position of 0, no high potential (direct current 24V voltage exists between the high potential and the negative electrode of a direct current power supply) is output through a connector plug XP by a switching-on lead J106, and the diesel generating set performs switching-off.
In the non-starting state of the diesel generator set, the key switch SA01 is placed at the running position, and a lead J100 on a terminal of the key switch SA01 is communicated with a lead J103. An air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is operated to be at an air inlet preheating position and maintained, a lead J103 on a terminal of an air inlet preheating-closing button switch SA03 is communicated with a lead J105, the air inlet preheating lead J105 outputs high potential (direct current 24V voltage exists between the air inlet preheating lead J105 and the negative pole of a direct current power supply) through a connector plug XP, and the air inlet preheating device of the diesel generating set works. An air inlet preheating-closing button switch SA03 on the emergency operation device of the diesel generating set is loosened, an air inlet preheating-closing button switch SA03 returns to the position of 0, a lead J103 on a terminal of an air inlet preheating-closing button switch SA03 is not communicated with a lead J105, no high potential (direct current 24V voltage exists between the lead J105 and the negative pole of a direct current power supply) of the air inlet preheating lead J105 is output through a connector plug XP, and the air inlet preheating device of the diesel generating set stops working.
When the diesel generating set has a low oil pressure fault, a low oil pressure lead J107 led in through a connector plug XP has low potential (direct current 24V voltage is between the low potential lead and the positive electrode of a direct current power supply) input, and a low oil pressure indicator HL01 on the emergency operation device of the diesel generating set is lightened.
When the diesel generating set has a high water temperature fault, a high water temperature lead J108 led in through a connector plug XP has low potential (direct current 24V voltage is between the high potential lead J108 and the positive pole of a direct current power supply) input, and a high water temperature indicator HL02 on the emergency operation device of the diesel generating set is lightened.
According to the control devices for emergency operation of the diesel generating set and the control method thereof, the manual emergency control device is independently used as devices, is not connected with the automatic control device to the same control panel, is convenient to access and withdraw, has complete emergency function and comprehensive and efficient control effect, manual emergency devices are removed from the control panel of the power station control system, the panel layout is fresh and cool, the layout size can be smaller, and the installation space is saved.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
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