CN214170715U

CN214170715U - Self-starting system of diesel generator

Info

Publication number: CN214170715U
Application number: CN202022940856.0U
Authority: CN
Inventors: 杜婉玲; 吕靖; 李文城
Original assignee: Guangzhou Environmental Investment Conghua Environmental Protection Energy Co ltd
Current assignee: Guangzhou Environmental Investment Conghua Environmental Protection Energy Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-10
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a diesel generator self-starting system belongs to diesel generator technical field, diesel generator self-starting system includes diesel engine section generating line, security personnel section generating line, 400V I section generating line and 400VII section generating line, diesel engine section outgoing line switch and diesel engine section to security personnel section switch have been connected in parallel on the diesel engine section generating line, security personnel section stand-by power supply incoming line switch and security personnel section main power supply incoming line switch have been connected in parallel on the security personnel section generating line, it has security personnel section main power supply switch A to establish ties on the 400V I section generating line, it has security personnel section main power supply switch B to establish ties on the 400VII section generating line. The utility model discloses a DCS distant control diesel engine switch of being qualified for the next round of competitions, diesel engine section to security personnel section switch, security personnel section stand-by power supply inlet wire switch divide-shut brake and diesel generator start-up realize diesel generator self-starting function for security personnel section main use, are fit for being extensively promoted and use.

Description

Self-starting system of diesel generator

Technical Field

The utility model relates to a diesel generator technical field especially relates to a diesel generator self-starting system.

Background

The diesel generator of the incinerator power plant does not have a self-starting function, and the power consumption of a security power supply can be ensured by manually switching on and off related switches after the diesel generator is manually started.

At present, incinerator power plants all have the problem that the recovery of a security section power supply is not timely because a diesel generator cannot be automatically started.

Disclosure of Invention

The utility model provides a diesel generator self-starting system, through DCS remote control diesel engine switch of being qualified for the next round of competitions, diesel engine section to security personnel section switch, security personnel section stand-by power supply inlet wire switch, security personnel section main power supply inlet wire switch divide-shut brake and diesel generator start-up realize diesel generator self-starting function, can effectively solve the problem in the background art.

The utility model provides a specific technical scheme as follows: the utility model provides a pair of diesel generator self-starting system, including diesel engine section generating line, security personnel

The bus comprises a section bus, a 400V I section bus and a 400VII section bus, wherein a diesel outlet switch and a diesel section-to-security section switch are connected in parallel on the diesel section bus, a security section standby power supply inlet switch and a security section main power supply inlet switch are connected in parallel on the security section bus, a security section main power supply switch A is connected in series on the 400V I section bus, a security section main power supply switch B is connected in series on the 400VII section bus, a security section main power supply switch A and a security section main power supply switch B are connected in parallel on the security section main power supply switch A and the security section main power supply switch B, and the duplex switch and the security section main power supply inlet switch are connected in series.

Optionally, the diesel engine section-security section switch and the security section standby power supply incoming line switch are connected in series.

Optionally, the diesel engine outlet switch is electrically connected with a diesel engine. The utility model has the advantages as follows: 1. The utility model discloses it is practical, when the system is normal for the factory, the main switch-in of power service incoming switch, security personnel section main switch A, security personnel section main switch B, the duplex switch keeps the combined floodgate state, and security personnel section generating line is by 400V I section generating lines, 400VII section generating lines through the duplex switch power supply. When the bus diesel engine is in an off state, the diesel engine outlet switch, the diesel engine section-to-security section switch and the security section standby power supply inlet switch are kept in an open state, and the bus of the diesel engine section has no voltage. When the whole plant loses power, the bus voltage detection device of the security section detects that the bus voltage of the security section is 0, the DCS program is started, the diesel engine is started by automatic signaling, the delay 5S signaling is carried out to jump off the main power supply inlet switch of the security section, the delay 3S is carried out to close the outlet switch of the diesel engine, and the delay is carried out

And 3S closing a switch from the diesel engine section to the security section and delaying the service entrance switch of the 3S security section standby power supply. The bus of the security section is switched from the bus of the diesel engine section to the switch of the security section through the diesel engine section for power supply.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the installation of the present invention. In the figure: 1. a diesel section bus; 2. a safety section bus; 3. 400V I sections of bus bars; 4. 400VII section bus; 5. a diesel engine outlet switch; 6. a switch from a diesel engine section to a security section; 7. the emergency power supply inlet switch of the security section; 8. the main power supply incoming line switch of the security section; 9. the security section is provided with a main power switch A; 10. the security section is provided with a main power switch B; 11. a diesel engine; 12. a duplex switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

A self-starting system of a diesel generator according to an embodiment of the present invention will be described in detail with reference to fig. 1.

As shown in fig. 1, the self-starting system of the diesel generator comprises a diesel section bus 1, a security section bus 2, a 400V I section bus 3 and a 400VII section bus 4, a diesel outlet switch 5 and a diesel section-to-security section switch 6 are connected in parallel on the diesel section bus 1, the bus 2 of the security section is connected with a standby power supply incoming switch 7 of the security section and a main power supply incoming switch 8 of the security section in parallel, a security section main power switch A9 is connected in series on the 400V I section bus 3, a security section main power switch B10 is connected in series on the 400VII section bus 4, the security segment main power switch A9 and the security segment main power switch B10 are connected in parallel with a duplex switch 12, the duplex switch 12 is connected in series with the security section main power supply incoming line switch 8.

In this embodiment, as shown in fig. 1, when the plant system is normal, the emergency section main power incoming line switch 8, the emergency section main power switch a9, the emergency section main power switch B10, and the duplex switch 12 maintain a switch-on state, and the emergency section bus 2 is powered by the 400V I section bus 3 and the 400VII section bus 4 through the duplex switch 12. The bus diesel engine 11 is in a shutdown state, the diesel engine outlet switch 5, the diesel engine section-to-security section switch 6 and the security section standby power supply inlet switch 7 are in an open state, and the diesel engine section bus 1 has no voltage. When the whole plant loses power, the bus voltage detection device of the security section detects that the bus voltage of the security section is 0, the DCS program is started, the diesel engine 11 is started by automatic signaling, the main power supply incoming switch 8 of the security section is tripped by delayed 5S signaling, the diesel engine outgoing switch 5 is switched by delayed 3S, the diesel engine section is switched to the security section switch 6 by delayed 3S, and the standby power supply incoming switch 7 of the security section is switched by delayed 3S. The safety section bus 2 is supplied with power from the diesel engine section bus 1 to the safety section switch 6 through the diesel engine section.

The diesel engine section-security section switch 6 and the security section standby power supply incoming line switch 7 are connected in series.

In this embodiment, as shown in fig. 1, the inlet switch 7 of the emergency power supply in the security segment controls the standby power supply to be turned on when necessary, so as to provide standby power.

The diesel engine outgoing switch 5 is electrically connected with a diesel engine 11.

In the embodiment, as shown in fig. 1, a diesel engine 11 provides energy power for a factory. It should be noted that the utility model relates to a diesel generator self-starting system, the during operation, the factory is used

When the system is normal, the security section main power incoming line switch 8, the security section main power switch A9, the security section main power switch B10 and the double-link switch 12 keep a closing state, and the security section bus 2 is supplied with power by a 400V I section bus 3 and a 400VII section bus 4 through the double-link switch 12. The bus diesel engine 11 is in a shutdown state, the diesel engine outlet switch 5, the diesel engine section-to-security section switch 6 and the security section standby power supply inlet switch 7 are in an open state, and the diesel engine section bus 1 has no voltage. When the whole plant loses power, the bus voltage detection device of the security section detects that the bus voltage of the security section is 0, the DCS program is started, the diesel engine 11 is started by automatic signaling, the delay 5S signaling is used for tripping the main power supply incoming switch 8 of the security section, the delay 3S is used for switching the diesel engine outgoing switch 5, the delay 3S is used for switching the diesel engine section to the security section switch 6, and the delay 3S security section standby power supply incoming switch 7 is used. The safety section bus 2 is supplied with power from the diesel section bus 1 to the safety section switch 6 through the diesel section.

The utility model discloses a diesel engine section bus 1; a safety section bus 2; 400V I segments of bus bar 3; 400VII section bus 4; a diesel outlet switch 5; a diesel engine section-to-security section switch 6; a safety section standby power supply incoming line switch 7; the main power supply incoming line switch 8 of the security section; the security section is provided with a main power switch A9; the safety section is a main power switch B10; a diesel engine 11; the parts of the two-up switch 12 are all standard parts or parts known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or through routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A self-starting system of a diesel generator comprises a diesel generator section bus (1), a security section bus (2),

The bus comprises a 400V I section bus (3) and a 400VII section bus (4), and is characterized in that a diesel outlet switch (5) and a diesel section-to-security section switch (6) are connected in parallel on the diesel section bus (1), a security section standby power supply inlet switch (7) and a security section main power supply inlet switch (8) are connected in parallel on the security section bus (2), and a security section main power supply switch A is connected in series on the 400V I section bus (3)

(9) A security section main power switch B (10) is connected in series on the 400VII section bus (4), a duplex switch (12) is connected in parallel on the security section main power switch A (9) and the security section main power switch B (10), and the duplex switch (12) and the security section main power incoming line switch (8) are connected in series.

2. The self-starting system of a diesel generator as claimed in claim 1, characterized in that the diesel section-to-crowbar switch (6) and the crowbar backup power supply inlet switch (7) are connected in series.

3. The diesel generator self-starting system according to claim 1, characterized in that the diesel outlet switch (5) is electrically connected with a diesel engine (11).