Center control self-starting system of emergency diesel generator applied to cement factory
By designing a central control self-starting system in a cement factory and automatically detecting and starting the diesel generator, the problems of long start-up time and complex emergency power switching in the existing technology are solved, and rapid self-starting and automatic shutdown are achieved, reducing accident risk and resource consumption.
Patent Information
- Application Number
- CN202421413116.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The starting method of diesel generators in existing cement factories is long and the emergency power switching is complex, which leads to the safe operation of the host equipment facing major risks.
A central control self-starting system is designed, including a dual power supply emergency cabinet for electrical room, a DCS cabinet for electrical room, a main computer for central control room, a DCS cabinet for general substations, a diesel generator for general substations and a low voltage cabinet for general substations. The system automatically starts the diesel generator by detecting the normal power loss signal, and transmits emergency power to the factory equipment through the power cable. After the normal power supply is restored, the system will automatically shut down.
It realizes rapid self-starting and automatic shutdown of diesel generators, reduces the risk of equipment operation accidents, reduces manpower investment and diesel consumption, and has good social and economic benefits.
Smart Images
Figure CN222868596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of central control self-starting of diesel generators, in particular to a central control self-starting system of an emergency diesel generator applied to a cement plant. Background Art
[0002] The auxiliary transmissions and oil stations of the main equipment such as rotary kilns and cement mills in cement plants are mostly primary loads, and emergency diesel generators are required to provide them with a second safety power supply.
[0003] There are many primary loads in cement plants and they are dispersed. They are usually installed in the preheater electrical room, clinker cooling electrical room and cement grinding electrical room. At present, the diesel generators in cement plants are usually installed in the preheater electrical room. When the normal power supply in the plant fails, the diesel generator needs to be started manually and the emergency power it generates is directly fed to the low-voltage busbar in the preheater electrical room, and then sent to the low-voltage busbars in each electrical room in the cement plant via a connecting cable. This method takes a long time to start, and the emergency power switching is relatively complicated, which brings significant risks to the safe operation of the host equipment. Utility Model Content
[0004] The purpose of the embodiment of the utility model is to provide a central control self-starting system for emergency diesel generators used in cement plants, which solves the problems of long starting time and complex emergency power supply switching in the prior art.
[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a central control self-starting system for an emergency diesel generator applied to a cement plant, the central control self-starting system comprising:
[0006] An electrical room dual power emergency cabinet, one end of which is connected to factory equipment;
[0007] An electrical room DCS cabinet, one end of which is connected to the other end of the electrical room dual power emergency cabinet;
[0008] A host computer in the central control room, one end of which is connected to the other end of the DCS cabinet in the electrical room;
[0009] A DCS cabinet of a main substation, one end of which is connected to the other end of the host computer in the central control room;
[0010] A main substation diesel generator, one end of which is connected to the other end of the main substation DCS cabinet;
[0011] A main substation diesel generator low-voltage cabinet, one end of which is connected to the other end of the main substation diesel generator, and the other end of which is connected to factory equipment.
[0012] Optionally, the electrical room dual power emergency cabinet includes:
[0013] A bus power supply, wherein the bus power supply comprises a neutral wire and three live wires;
[0014] A first OTM controller, wherein a first end of the first OTM controller is correspondingly connected to three live wires of the bus power supply;
[0015] A normal factory power supply, wherein the neutral line of the normal factory power supply is connected to the neutral line of the bus power supply, and the three live lines of the normal factory power supply are correspondingly connected to the second end of the first OTM controller;
[0016] A diesel generator emergency power supply, wherein the neutral line of the diesel generator emergency power supply is connected to the neutral line of the bus power supply, and the three live wires of the diesel generator emergency power supply are correspondingly connected to the third end of the first OTM controller;
[0017] A second OTM controller, wherein a first end of the second OTM controller is correspondingly connected to a normal power supply of the factory, a second end of the second OTM controller is correspondingly connected to an emergency power supply of a diesel generator, a third end of the second OTM controller is correspondingly connected to a DCS cabinet in the electrical room, and a fourth end of the second OTM controller is grounded;
[0018] A third OTM controller, wherein a first end of the third OTM controller is connected to a fifth end of the second OTM controller, and a second end of the third OTM controller is connected to a sixth end of the second OTM controller.
[0019] Optionally, the first OTM controller includes:
[0020] a first switch, a second switch, and a third switch, wherein one end of the first switch, the second switch, and the third switch is connected to the live wire of the bus power supply, and the other end of the first switch, the second switch, and the third switch is connected to the normal power supply of the factory;
[0021] The fourth switch, the fifth switch and the sixth switch, one end of the fourth switch, the fifth switch and the sixth switch is connected to the live wire of the bus power supply, and the other end of the fourth switch, the fifth switch and the sixth switch is connected to the emergency power supply of the diesel generator.
[0022] Optionally, the first contact, the second contact, the third contact and the fourth contact of the second OTM controller are respectively connected to the normal power supply of the factory;
[0023] The fifth contact, the sixth contact, the seventh contact and the eighth contact of the second OTM controller are respectively connected to the emergency power supply of the diesel generator;
[0024] One ends of the ninth contact, the tenth contact, and the eleventh contact of the second OTM controller are respectively connected to the DCS cabinet in the electrical room, the other end of the ninth contact of the second OTM controller is connected to one end of the start switch of the DCS cabinet in the electrical room, the other end of the tenth contact of the second OTM controller is connected to one end of the common end, the other end of the eleventh contact of the second OTM controller is connected to one end of the stop switch of the DCS cabinet in the electrical room, and the other end of the start switch of the DCS cabinet in the electrical room is connected to the other end of the common end and the other end of the stop switch of the DCS cabinet in the electrical room;
[0025] The twelfth contact of the second OTM controller is connected to one end of the seventh switch, the thirteenth contact of the second OTM controller is connected to one end of the common terminal, the fourteenth contact of the second OTM controller is connected to one end of the eighth switch, and the other end of the seventh switch is connected to the other end of the common terminal and the other end of the eighth switch;
[0026] One end of the sixteenth contact of the second OTM controller is connected to one end of the ninth switch, one end of the seventeenth contact of the second OTM controller is connected to one end of the tenth switch, and one end of the fifteenth contact of the second OTM controller is connected to the other end of the ninth switch and the other end of the tenth switch;
[0027] The twenty-second contact of the second OTM controller is grounded.
[0028] Optionally, the first contact of the third OTM controller is connected to the other end of the fifteenth contact of the second OTM controller, the second contact of the third OTM controller is connected to the other end of the sixteenth contact of the second OTM controller, and the third contact of the third OTM controller is connected to the other end of the seventeenth contact of the second OTM controller;
[0029] The fourth contact of the third OTM controller is connected to the eighteenth contact of the second OTM controller, the fifth contact of the third OTM controller is connected to the nineteenth contact of the second OTM controller, the sixth contact of the third OTM controller is connected to the twentieth contact of the second OTM controller, and the seventh contact of the third OTM controller is connected to the twenty-first contact of the second OTM controller.
[0030] Optionally, the electrical room dual power emergency cabinet includes: a raw material crushing electrical room dual power emergency cabinet, a raw material mixing electrical room dual power emergency cabinet, a cement mixing electrical room dual power emergency cabinet, a raw material grinding electrical room dual power emergency cabinet, a preheater electrical room dual power emergency cabinet, a clinker cooling electrical room dual power emergency cabinet, a cement grinding electrical room dual power emergency cabinet, a terminal packaging electrical room dual power emergency cabinet and a pump room electrical room dual power emergency cabinet;
[0031] One end of the dual power emergency cabinet in the raw material crushing electrical room, the dual power emergency cabinet in the raw material mixing electrical room, the dual power emergency cabinet in the cement mixing electrical room, the dual power emergency cabinet in the raw material grinding electrical room, the dual power emergency cabinet in the preheater electrical room, the dual power emergency cabinet in the clinker cooling electrical room, the dual power emergency cabinet in the cement grinding electrical room, the dual power emergency cabinet in the wharf packaging electrical room and the dual power emergency cabinet in the water pump room electrical room are connected to the factory equipment.
[0032] Optionally, the electrical room DCS cabinet includes: a raw material crushing electrical room DCS cabinet, a raw material mixing electrical room DCS cabinet, a cement mixing electrical room DCS cabinet, a raw material grinding electrical room DCS cabinet, a preheater electrical room DCS cabinet, a clinker cooling electrical room DCS cabinet, a cement grinding electrical room DCS cabinet, a terminal packaging electrical room DCS cabinet and a pump room electrical room DCS cabinet;
[0033] One end of the DCS cabinet in the raw material crushing electrical room, the DCS cabinet in the raw material mixing electrical room, the DCS cabinet in the cement mixing electrical room, the DCS cabinet in the raw material grinding electrical room, the DCS cabinet in the preheater electrical room, the DCS cabinet in the clinker cooling electrical room, the DCS cabinet in the cement grinding electrical room, the DCS cabinet in the wharf packaging electrical room and the DCS cabinet in the pump room electrical room are respectively connected to the other end of the dual power emergency cabinet in the raw material crushing electrical room, the dual power emergency cabinet in the raw material mixing electrical room, the dual power emergency cabinet in the cement mixing electrical room, the dual power emergency cabinet in the raw material grinding electrical room, the dual power emergency cabinet in the preheater electrical room, the dual power emergency cabinet in the clinker cooling electrical room, the dual power emergency cabinet in the cement grinding electrical room, the dual power emergency cabinet in the wharf packaging electrical room and the dual power emergency cabinet in the pump room electrical room.
[0034] Through the above technical solution, when the dual power emergency cabinet in the electrical room detects the power failure signal of the normal power supply in the factory, the controller inside the dual power emergency cabinet in the electrical room outputs the diesel engine start signal to the DCS cabinet in the electrical room, and transmits the power failure signal to the host computer in the central control room through the communication optical cable. The host computer in the central control room sends the diesel generator self-start signal to the DCS cabinet of the main substation through logical analysis and calculation, and drives the diesel generator in the main substation to start the generator and put it into power generation operation, and promptly transmits the low-voltage cabinet of the diesel generator in the main substation to the factory equipment through the power cable. The factory equipment receives the signal and transmits it to the dual power emergency cabinet in the electrical room, and the diesel generator emergency power supply can be officially put into the primary load. When the dual power emergency cabinet in the electrical room in the factory detects the normal power supply restoration signal in the factory, the controller in the dual power emergency cabinet in the electrical room outputs the diesel engine stop signal to the corresponding DCS cabinet in the electrical room, and outputs the power restoration signal to the host computer in the central control room through the communication cable. The host computer in the central control room transmits the diesel generator automatic shutdown signal to the DCS cabinet of the main substation, and immediately drives the diesel engine controller to automatically shut down. The central control self-starting system has a good effect on the rapid power supply of the primary load in the cement plant, reducing the risk of equipment operation accidents. At the same time, it can reduce manpower input and excessive consumption of diesel, and has good social and economic benefits.
[0035] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present utility model, but do not constitute a limitation on the embodiments of the present utility model. In the accompanying drawings:
[0037] Figure 1 It is a schematic diagram of a central control self-starting system for an emergency diesel generator applied to a cement plant according to one embodiment of the utility model;
[0038] Figure 2 It is a schematic diagram of a central control self-starting system for an emergency diesel generator applied to a cement plant according to one embodiment of the utility model;
[0039] Figure 3 It is a circuit schematic diagram of dual power emergency cabinets in each electrical room of a central control self-starting system of an emergency diesel generator applied to a cement plant according to an embodiment of the utility model;
[0040] Figure 4It is a circuit schematic diagram of dual power emergency cabinets in each electrical room of a central control self-starting system of an emergency diesel generator applied to a cement plant according to an embodiment of the utility model;
[0041] Figure 5 It is a circuit schematic diagram of dual power emergency cabinets in each electrical room of a central control self-starting system of an emergency diesel generator applied to a cement plant according to an embodiment of the utility model;
[0042] Figure 6 The invention is a circuit schematic diagram of a diesel generator self-starting in a central control self-starting system of an emergency diesel generator applied to a cement plant according to an embodiment of the utility model.
[0043] Description of Reference Numerals
[0044] 1. Dual power emergency cabinet in electrical room 2. DCS cabinet in electrical room
[0045] 3. Host computer in the central control room 4. DCS cabinet in the main substation
[0046] 5. Main substation diesel generator 6. Main substation diesel generator low voltage cabinet
[0047] K1, first switch K2, second switch
[0048] K3, third switch K4, fourth switch
[0049] K5, fifth switch K6, sixth switch
[0050] K7, start switch of DCS cabinet in electrical room K8, stop switch of DCS cabinet in electrical room
[0051] K9, seventh switch K10, eighth switch
[0052] K11, ninth switch K12, tenth switch
[0053] 111. Dual power emergency cabinet in electrical room for raw material crushing 112. Dual power emergency cabinet in electrical room for raw material mixing 113. Dual power emergency cabinet in cement mixing electrical room 114. Dual power emergency cabinet in raw material grinding electrical room 115. Dual power emergency cabinet in preheater electrical room 116. Dual power emergency cabinet in clinker cooling electrical room 117. Dual power emergency cabinet in cement grinding electrical room 118. Dual power emergency cabinet in terminal packaging electrical room 119. Dual power emergency cabinet in the electrical room of the pump room 219. DCS cabinet in the electrical room of the pump room
[0054] 211. DCS cabinet in electrical room for raw material crushing 212. DCS cabinet in electrical room for raw material mixing
[0055] 213. DCS cabinet in cement mixing electrical room 214. DCS cabinet in raw material grinding electrical room
[0056] 215. DCS cabinet in preheater electrical room 216. DCS cabinet in clinker cooling electrical room
[0057] 217. DCS cabinet in cement grinding electrical room 218. DCS cabinet in terminal packaging electrical room DETAILED DESCRIPTION
[0058] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.
[0059] In the embodiments of the present application, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings or are used to describe the relative positional relationships of components in the vertical, perpendicular or gravity direction.
[0060] In addition, if there are descriptions involving "first", "second", etc. in the implementation methods of this application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various implementation methods can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0061] like Figure 1 As shown, Figure 1 This is a schematic diagram of a central control self-starting system for an emergency diesel generator used in a cement plant according to an embodiment of the utility model. Figure 1The central control self-starting system includes: a dual power emergency cabinet 1 in the electrical room, a DCS cabinet 2 in the electrical room, a host computer 3 in the central control room, a DCS cabinet 4 in the main substation, a diesel generator 5 in the main substation and a low-voltage cabinet 6 for the diesel generator in the main substation, wherein one end of the dual power emergency cabinet 1 in the electrical room is connected to the factory equipment; one end of the DCS cabinet 2 in the electrical room is connected to the other end of the dual power emergency cabinet 1 in the electrical room; one end of the host computer 3 in the central control room is connected to the other end of the DCS cabinet 2 in the electrical room; one end of the DCS cabinet 4 in the main substation is connected to the other end of the host computer 3 in the central control room; one end of the diesel generator 5 in the main substation is connected to the other end of the DCS cabinet 4 in the main substation; one end of the low-voltage cabinet 6 for the diesel generator in the main substation is connected to the other end of the diesel generator 5 in the main substation, and the other end of the low-voltage cabinet 6 for the diesel generator in the main substation is connected to the factory equipment. When the electrical room dual power emergency cabinet 1 detects the power failure signal of the normal power supply in the factory, the controller inside the electrical room dual power emergency cabinet 1 outputs the diesel engine start signal to the electrical room DCS cabinet 2, and transmits the power failure signal to the central control room host computer 3 through the communication optical cable. The central control room host computer 3 sends the diesel generator self-start signal to the main substation DCS cabinet 4 through logical analysis and calculation, and drives the main substation diesel generator 5 to self-start the generator and put it into power generation operation, and promptly transmits the main substation diesel generator low-voltage cabinet 6 to the factory equipment through the power cable. The factory equipment receives the signal and transmits it to the electrical room dual power emergency cabinet 1, and the diesel generator emergency power supply can be officially put into the primary load. When the electrical room dual power emergency cabinet 1 in the factory detects the normal power supply restoration signal in the factory, the controller in the electrical room dual power emergency cabinet 1 outputs the diesel engine stop signal to the corresponding electrical room DCS cabinet 2, and outputs the power restoration signal to the central control room host computer 3 through the communication cable. The central control room host computer 3 transmits the diesel generator automatic shutdown signal to the main substation DCS cabinet 4, and immediately drives the diesel engine controller to automatically shut down. The central control self-starting system has a good effect on the rapid power supply of the primary load in the cement plant, reducing the risk of equipment operation accidents, while reducing manpower input and excessive consumption of diesel, and has good social and economic benefits.
[0062] In this embodiment, the circuit connection mode of the electrical room dual power emergency cabinet 1 can be a variety of connection modes known to those skilled in the art. In one embodiment of the present utility model, Figure 3As shown, the electrical room dual power emergency cabinet 1 includes: a bus power supply, a first OTM controller, a factory normal power supply, a diesel generator emergency power supply, a second OTM controller and a third OTM controller, wherein the bus power supply includes a neutral wire and three live wires; the first end of the first OTM controller is connected to the three live wires of the bus power supply; the neutral wire of the factory normal power supply is connected to the neutral wire of the bus power supply, and the three live wires of the factory normal power supply are connected to the second end of the first OTM controller; the neutral wire of the diesel generator emergency power supply is connected to the neutral wire of the bus power supply, and the three live wires of the diesel generator emergency power supply are connected to the third end of the first OTM controller; the first end of the second OTM controller is connected to the factory normal power supply, the second end of the second OTM controller is connected to the diesel generator emergency power supply, the third end of the second OTM controller is connected to the electrical room DCS cabinet, and the fourth end of the second OTM controller is grounded; the first end of the third OTM controller is connected to the fifth end of the second OTM controller, and the second end of the third OTM controller is connected to the sixth end of the second OTM controller. When the dual power emergency cabinet 1 in the electrical room detects a power failure signal of the normal power supply in the factory, the first OTM controller, the second OTM controller and the third OTM controller inside the dual power emergency cabinet 1 in the electrical room output a diesel engine start signal to the DCS cabinet 2 in the electrical room, and transmit the power failure signal to the host computer 3 in the central control room through the communication optical cable. The host computer 3 in the central control room sends the diesel generator self-start signal to the DCS cabinet 4 of the main substation through logical analysis and calculation, and drives the diesel generator 5 of the main substation to self-start the generator and put it into power generation operation. The low-voltage cabinet 6 of the diesel generator in the main substation is promptly transmitted to the factory equipment through the power cable. The factory equipment receives the signal and transmits it to the dual power emergency cabinet 1 in the electrical room, so that the emergency power supply of the diesel generator can be officially put into use to supply power to the primary load.
[0063] In this embodiment, the connection mode of the first OTM controller can be a variety of connection modes known to those skilled in the art. In one embodiment of the utility model, the first OTM controller includes: a first switch K1, a second switch K2, a third switch K3, a fourth switch K4, a fifth switch K5 and a sixth switch K6, wherein one end of the first switch K1, the second switch K2 and the third switch K3 is connected to the live wire of the bus power supply, and the other end of the first switch K1, the second switch K2 and the third switch K3 is connected to the normal power supply of the factory; one end of the fourth switch K4, the fifth switch K5 and the sixth switch K6 is connected to the live wire of the bus power supply, and the other end of the fourth switch K4, the fifth switch K5 and the sixth switch K6 is connected to the emergency power supply of the diesel generator. When the electrical room dual power emergency cabinet 1 detects a power failure signal of the normal power supply inside the factory, the emergency power supply of the diesel generator can be enabled.
[0064] In this embodiment, the first contact, the second contact, the third contact and the fourth contact of the second OTM controller are respectively connected to the normal power supply of the factory; the fifth contact, the sixth contact, the seventh contact and the eighth contact of the second OTM controller are respectively connected to the emergency power supply of the diesel generator; one end of the ninth contact, the tenth contact and the eleventh contact of the second OTM controller are respectively connected to the DCS cabinet in the electrical room, the other end of the ninth contact of the second OTM controller is connected to one end of the start switch K7 of the DCS cabinet in the electrical room, the other end of the tenth contact of the second OTM controller is connected to one end of the common end, the other end of the eleventh contact of the second OTM controller is connected to one end of the stop switch K8 of the DCS cabinet in the electrical room, and the other end of the start switch K7 of the DCS cabinet in the electrical room is connected to the common end. The other end is connected to the other end of the stop switch K8 of the DCS cabinet in the electrical room; the twelfth contact of the second OTM controller is connected to one end of the seventh switch K9, the thirteenth contact of the second OTM controller is connected to one end of the common end, the fourteenth contact of the second OTM controller is connected to one end of the eighth switch K10, and the other end of the seventh switch K9 is connected to the other end of the common end and the other end of the eighth switch K10; one end of the sixteenth contact of the second OTM controller is connected to one end of the ninth switch K11, one end of the seventeenth contact of the second OTM controller is connected to one end of the tenth switch K12, and one end of the fifteenth contact of the second OTM controller is connected to the other end of the ninth switch K11 and the other end of the tenth switch K12; the twenty-second contact of the second OTM controller is grounded.
[0065] In this embodiment, the first contact of the third OTM controller is connected to the other end of the fifteenth contact of the second OTM controller; the second contact of the third OTM controller is connected to the other end of the sixteenth contact of the second OTM controller, and the second contact of the third OTM controller and the sixteenth contact of the second OTM controller are used to output a first signal; the third contact of the third OTM controller is connected to the other end of the seventeenth contact of the second OTM controller, and the third contact of the third OTM controller and the seventeenth contact of the second OTM controller are used to output a second signal; the fourth contact of the third OTM controller is connected to the eighteenth contact of the second OTM controller, the fifth contact of the third OTM controller is connected to the nineteenth contact of the second OTM controller, the sixth contact of the third OTM controller is connected to the twentieth contact of the second OTM controller, and the seventh contact of the third OTM controller is connected to the twenty-first contact of the second OTM controller.
[0066] In this embodiment, for the structure of the electrical room dual power emergency cabinet 1, as shown in FIG. Figure 2As shown, it can be a variety of structures known to those skilled in the art. In one embodiment of the present utility model, the electrical room dual power emergency cabinet includes: a raw material crushing electrical room dual power emergency cabinet 111, a raw material mixing electrical room dual power emergency cabinet 112, a cement mixing electrical room dual power emergency cabinet 113, a raw material grinding electrical room dual power emergency cabinet 114, a preheater electrical room dual power emergency cabinet 115, a clinker cooling electrical room dual power emergency cabinet 116, a cement grinding electrical room dual power emergency cabinet 117, and a terminal packaging electrical room dual power emergency cabinet 11 8 and the dual power emergency cabinet 119 in the electrical room of the water pump room; the dual power emergency cabinet 111 in the electrical room of raw material crushing, the dual power emergency cabinet 112 in the electrical room of raw material mixing, the dual power emergency cabinet 113 in the electrical room of cement mixing, the dual power emergency cabinet 114 in the electrical room of raw material grinding, the dual power emergency cabinet 115 in the electrical room of preheater, the dual power emergency cabinet 116 in the electrical room of clinker cooling, the dual power emergency cabinet 117 in the electrical room of cement grinding, the dual power emergency cabinet 118 in the electrical room of wharf packaging and one end of the dual power emergency cabinet 119 in the electrical room of the water pump room are connected to the factory equipment.
[0067] In this embodiment, the structure of the DCS cabinet 2 in the electrical room can be a variety of structures known to those skilled in the art. In one embodiment of the utility model, the DCS cabinet 2 in the electrical room includes: a DCS cabinet 211 in the electrical room for raw material crushing, a DCS cabinet 212 in the electrical room for raw material mixing, a DCS cabinet 213 in the electrical room for cement mixing, a DCS cabinet 214 in the electrical room for raw material grinding, a DCS cabinet 215 in the electrical room for preheater, a DCS cabinet 216 in the electrical room for clinker cooling, a DCS cabinet 217 in the electrical room for cement grinding, a DCS cabinet 218 in the electrical room for terminal packaging, and a DCS cabinet 219 in the electrical room for water pump room. One end of the DCS cabinet 211 in the raw material crushing electrical room, the DCS cabinet 212 in the raw material mixing electrical room, the DCS cabinet 213 in the cement mixing electrical room, the DCS cabinet 214 in the raw material grinding electrical room, the DCS cabinet 215 in the preheater electrical room, the DCS cabinet 216 in the clinker cooling electrical room, the DCS cabinet 217 in the cement grinding electrical room, the DCS cabinet 218 in the wharf packaging electrical room and the DCS cabinet 219 in the pump room electrical room are respectively connected to the other end of the dual power emergency cabinet 111 in the raw material crushing electrical room, the dual power emergency cabinet 112 in the raw material mixing electrical room, the dual power emergency cabinet 113 in the cement mixing electrical room, the dual power emergency cabinet 114 in the raw material grinding electrical room, the dual power emergency cabinet 115 in the preheater electrical room, the dual power emergency cabinet 116 in the clinker cooling electrical room, the dual power emergency cabinet 117 in the cement grinding electrical room, the dual power emergency cabinet 118 in the wharf packaging electrical room and the dual power emergency cabinet 119 in the pump room electrical room.
[0068] Specifically, in one embodiment of the present invention, Figure 6 As shown, Figure 6This is a circuit schematic diagram of a diesel generator self-starting system in a central control self-starting system for an emergency diesel generator in a cement plant according to an embodiment of the present utility model. Figure 6 In the embodiment, the first terminal of the terminal block is used to access the negative voltage; the second terminal is connected to the DC24V power switch for accessing the positive voltage; one end of the third terminal is connected to the second terminal through the switch; one end of the fourth terminal is connected to the relay for outputting the fuel signal; one end of the fifth terminal is connected to the relay for outputting the start signal; the other ends of the fourth terminal and the fifth terminal are respectively connected to the switch, and the other ends of the fourth terminal and the fifth terminal are connected to the switch and the other end of the third terminal; one end of the eighth terminal is connected to the light bulb for outputting the public alarm signal; one end of the ninth terminal is connected to the relay for outputting the idle / running signal; one end of the tenth terminal is connected to the relay for outputting the GCB closing signal; one end of the eleventh terminal is connected to the relay for outputting the GCB opening signal; one end of the twelfth terminal is connected to the relay for outputting the standby signal; the other ends of the eighth terminal, the ninth terminal, the tenth terminal, the eleventh terminal, the twelfth terminal and the thirteenth terminal are respectively connected through the switch; the fourteenth terminal is grounded; the fifteenth terminal is connected to the resistor for outputting the liquid The sixteenth terminal is connected to the resistor for outputting the water temperature sensor signal; the seventeenth terminal is connected to the sensor for outputting the fuel level sensor signal; one end of the forty-eighth terminal is used to connect the switch of the DCS cabinet 2 in the electrical room for remote control of the DCS cabinet 1 in the electrical room and output the self-starting signal of the unit; one end of the forty-ninth terminal is connected to the switch for outputting the closing feedback signal; one end of the fiftieth terminal is connected to the switch for outputting the low oil pressure switch signal; one end of the fifty-first terminal is connected to the switch for outputting the high water temperature switch signal; one end of the fifty-second terminal is connected to the switch for outputting the low water level switch signal; one end of the fifty-third terminal is connected to the switch for outputting the fault reset signal; one end of the fifty-fourth terminal is connected to the switch for outputting the box emergency stop signal; one end of the fifty-fifth terminal is connected to the switch for outputting the standby signal; the other ends of the forty-eighth terminal, the forty-ninth terminal, the fifty-fifth terminal, the fifty-first terminal, the fifty-second terminal, the fifty-third terminal, the fifty-fourth terminal and the fifty-fifth terminal are respectively connected through the switch.
[0069] Through the above technical solution, when the dual power emergency cabinet 1 in the electrical room detects a power failure signal of the normal power supply in the factory, the controller inside the dual power emergency cabinet 1 in the electrical room outputs a diesel engine start signal to the DCS cabinet 2 in the electrical room, and transmits the power failure signal to the host computer 3 in the central control room through the communication optical cable. The host computer 3 in the central control room sends the diesel generator self-start signal to the DCS cabinet 4 of the main substation through logical analysis and calculation, and drives the diesel generator 5 of the main substation to self-start the generator and put it into power generation operation, and promptly transmits the main substation diesel generator low-voltage cabinet 6 to the factory equipment through the power cable. The factory equipment receives the signal and transmits it to the dual power emergency cabinet 1 in the electrical room, so that the emergency power supply of the diesel generator can be officially put into use to supply power to the primary load. When the dual power emergency cabinet 1 in the electrical room of the factory detects the normal power supply restoration signal in the factory, the controller in the dual power emergency cabinet 1 in the electrical room outputs the diesel engine stop signal to the corresponding DCS cabinet 2 in the electrical room, and outputs the power restoration signal to the host computer 3 in the central control room through the communication cable. The host computer 3 in the central control room transmits the diesel generator automatic shutdown signal to the DCS cabinet 4 of the main substation, and immediately drives the diesel engine controller to automatically shut down. This central control self-starting system has a good effect on the rapid power supply of the primary load in the cement plant, reduces the risk of equipment operation accidents, and reduces manpower input and excessive consumption of diesel, with good social and economic benefits.
[0070] The optional implementation modes of the utility model examples are described in detail above in conjunction with the accompanying drawings. However, the implementation modes of the utility model are not limited to the specific details in the above implementation modes. Within the technical concept of the implementation modes of the utility model, various simple modifications can be made to the technical solutions of the implementation modes of the utility model. These simple modifications all belong to the protection scope of the implementation modes of the utility model.
[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of the embodiments of the present utility model will not be described separately.
[0072] In addition, various different embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.
Claims
1. A central control self-starting system for emergency diesel generators used in cement plants, characterized in that: The central control self-starting system comprises: An electrical room dual power emergency cabinet, one end of which is connected to factory equipment; An electrical room DCS cabinet, one end of which is connected to the other end of the electrical room dual power emergency cabinet; A host computer in the central control room, one end of which is connected to the other end of the DCS cabinet in the electrical room; A DCS cabinet of a main substation, one end of which is connected to the other end of the host computer in the central control room; A main substation diesel generator, one end of which is connected to the other end of the main substation DCS cabinet; A main substation diesel generator low-voltage cabinet, one end of which is connected to the other end of the main substation diesel generator, and the other end of which is connected to factory equipment.
2. The central control self-starting system according to claim 1 is characterized in that: The electrical room dual power emergency cabinet includes: A bus power supply, wherein the bus power supply comprises a neutral wire and three live wires; A first OTM controller, wherein a first end of the first OTM controller is correspondingly connected to three live wires of the bus power supply; A normal factory power supply, wherein the neutral line of the normal factory power supply is connected to the neutral line of the bus power supply, and the three live lines of the normal factory power supply are correspondingly connected to the second end of the first OTM controller; A diesel generator emergency power supply, wherein the neutral line of the diesel generator emergency power supply is connected to the neutral line of the bus power supply, and the three live wires of the diesel generator emergency power supply are correspondingly connected to the third end of the first OTM controller; A second OTM controller, wherein a first end of the second OTM controller is correspondingly connected to a normal power supply of the factory, a second end of the second OTM controller is correspondingly connected to an emergency power supply of a diesel generator, a third end of the second OTM controller is correspondingly connected to a DCS cabinet in the electrical room, and a fourth end of the second OTM controller is grounded; A third OTM controller, wherein a first end of the third OTM controller is connected to a fifth end of the second OTM controller, and a second end of the third OTM controller is connected to a sixth end of the second OTM controller.
3. The central control self-starting system according to claim 2 is characterized in that: The first OTM controller comprises: a first switch, a second switch, and a third switch, wherein one end of the first switch, the second switch, and the third switch is connected to the live wire of the bus power supply, and the other end of the first switch, the second switch, and the third switch is connected to the normal power supply of the factory; The fourth switch, the fifth switch and the sixth switch, one end of the fourth switch, the fifth switch and the sixth switch is connected to the live wire of the bus power supply, and the other end of the fourth switch, the fifth switch and the sixth switch is connected to the emergency power supply of the diesel generator.
4. The central control self-starting system according to claim 2 is characterized in that: The first contact, the second contact, the third contact and the fourth contact of the second OTM controller are respectively connected to the normal power supply of the factory; The fifth contact, the sixth contact, the seventh contact and the eighth contact of the second OTM controller are respectively connected to the emergency power supply of the diesel generator; One ends of the ninth contact, the tenth contact, and the eleventh contact of the second OTM controller are respectively connected to the DCS cabinet in the electrical room, the other end of the ninth contact of the second OTM controller is connected to one end of the start switch of the DCS cabinet in the electrical room, the other end of the tenth contact of the second OTM controller is connected to one end of the common end, the other end of the eleventh contact of the second OTM controller is connected to one end of the stop switch of the DCS cabinet in the electrical room, and the other end of the start switch of the DCS cabinet in the electrical room is connected to the other end of the common end and the other end of the stop switch of the DCS cabinet in the electrical room; The twelfth contact of the second OTM controller is connected to one end of the seventh switch, the thirteenth contact of the second OTM controller is connected to one end of the common terminal, the fourteenth contact of the second OTM controller is connected to one end of the eighth switch, and the other end of the seventh switch is connected to the other end of the common terminal and the other end of the eighth switch; One end of the sixteenth contact of the second OTM controller is connected to one end of the ninth switch, one end of the seventeenth contact of the second OTM controller is connected to one end of the tenth switch, and one end of the fifteenth contact of the second OTM controller is connected to the other end of the ninth switch and the other end of the tenth switch; The twenty-second contact of the second OTM controller is grounded.
5. The central control self-starting system according to claim 4 is characterized in that: The first contact of the third OTM controller is connected to the other end of the fifteenth contact of the second OTM controller, the second contact of the third OTM controller is connected to the other end of the sixteenth contact of the second OTM controller, and the third contact of the third OTM controller is connected to the other end of the seventeenth contact of the second OTM controller; The fourth contact of the third OTM controller is connected to the eighteenth contact of the second OTM controller, the fifth contact of the third OTM controller is connected to the nineteenth contact of the second OTM controller, the sixth contact of the third OTM controller is connected to the twentieth contact of the second OTM controller, and the seventh contact of the third OTM controller is connected to the twenty-first contact of the second OTM controller.
6. The central control self-starting system according to claim 1, characterized in that: The electrical room dual power emergency cabinets include: raw material crushing electrical room dual power emergency cabinets, raw material mixing electrical room dual power emergency cabinets, cement mixing electrical room dual power emergency cabinets, raw material grinding electrical room dual power emergency cabinets, preheater electrical room dual power emergency cabinets, clinker cooling electrical room dual power emergency cabinets, cement grinding electrical room dual power emergency cabinets, terminal packaging electrical room dual power emergency cabinets and pump room electrical room dual power emergency cabinets; One end of the dual power emergency cabinet in the raw material crushing electrical room, the dual power emergency cabinet in the raw material mixing electrical room, the dual power emergency cabinet in the cement mixing electrical room, the dual power emergency cabinet in the raw material grinding electrical room, the dual power emergency cabinet in the preheater electrical room, the dual power emergency cabinet in the clinker cooling electrical room, the dual power emergency cabinet in the cement grinding electrical room, the dual power emergency cabinet in the wharf packaging electrical room and the dual power emergency cabinet in the water pump room electrical room are connected to the factory equipment.
7. The central control self-starting system according to claim 6, characterized in that: The DCS cabinets in the electrical room include: DCS cabinets in the electrical room for raw material crushing, DCS cabinets in the electrical room for raw material mixing, DCS cabinets in the electrical room for cement mixing, DCS cabinets in the electrical room for raw material grinding, DCS cabinets in the electrical room for preheater, DCS cabinets in the electrical room for clinker cooling, DCS cabinets in the electrical room for cement grinding, DCS cabinets in the electrical room for terminal packaging and DCS cabinets in the electrical room for water pump room; One end of the DCS cabinet in the raw material crushing electrical room, the DCS cabinet in the raw material mixing electrical room, the DCS cabinet in the cement mixing electrical room, the DCS cabinet in the raw material grinding electrical room, the DCS cabinet in the preheater electrical room, the DCS cabinet in the clinker cooling electrical room, the DCS cabinet in the cement grinding electrical room, the DCS cabinet in the wharf packaging electrical room and the DCS cabinet in the pump room electrical room are respectively connected to the other end of the dual power emergency cabinet in the raw material crushing electrical room, the dual power emergency cabinet in the raw material mixing electrical room, the dual power emergency cabinet in the cement mixing electrical room, the dual power emergency cabinet in the raw material grinding electrical room, the dual power emergency cabinet in the preheater electrical room, the dual power emergency cabinet in the clinker cooling electrical room, the dual power emergency cabinet in the cement grinding electrical room, the dual power emergency cabinet in the wharf packaging electrical room and the dual power emergency cabinet in the pump room electrical room.