CN201029019Y

CN201029019Y - Mining explosion-proof type double power supply double-loop vacuum intelligent electromagnetic starter

Info

Publication number: CN201029019Y
Application number: CNU2007200345801U
Authority: CN
Inventors: 张卫国
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-14
Filing date: 2007-02-14
Publication date: 2008-02-27
Anticipated expiration: 2017-02-14

Abstract

The utility model discloses a flame-proof type vacuum intelligent electromagnetic starter with double power sources and double loops for mining, which comprises a main blower controlling loop and an assistant blower controlling loop. The main blower controlling loop and the assistant blower controlling loop respectively comprise an isolating phase changing switch, a transformer, a middle relay, a contactor, a protector, and an online switch; a control protecting unit(1KB) is arranged between the protector(BHQ1) and the online switch(1K), and the relay cut node(1KB1) is connected to the wire connecting terminals at the two extremes of a starting button(2QA1); normally closed contact(1KB2) of the control protecting unit(1KB) are connected between the protector(BHQ2) and a normally open contacts(2DJ1). Compared with the prior art, the control of the main blower of the utility model has a preference; when the power supply is normal, only the main blower can be started and the assistant blower can not be started; when the power for the main blower is cut off or a malfunction occurs, the assistant blower is started up automatically so as to ensure the safe production under the coal mine; when the malfunction of the main blower control system or the power supply system is eliminated, the assistant blower is cut off automatically and the main blower is put into operation once again.

Description

Flame-proof mine dual power supply two-circuit vacuum intelligent electromagnetic trigger

Technical field

The utility model belongs to a kind of colliery underground equipment control apparatus, specifically is a kind of flame-proof mine dual power supply two-circuit vacuum intelligent electromagnetic trigger.

Background technology

Under coal mine, adopt, dig on the workplace, the configuration of blower fan, all are main air blower operations, the next door have an accessory fan that waits a capacity or a little rank capacity do standby, in case the main air blower or the electric power system of main air blower break down or when having a power failure, accessory fan should put into operation immediately automatically, therefore, need need carry out online control to main air blower and accessory fan, to guarantee production safety needs under the coal mine.

At present, in the China's coal-mine down-hole, be used to control and protect portable blower, be the classic method of revolving portable blower:

1, uses two traditional electromagnetic starters, under coal mine, carry out the reconfiguration line by the workman and finish control and protection;

2, select for use a two-circuit vacuum electromagnetic starter to finish control and protection.

Its shortcoming is these triggers at control and protection portable blower, when revolving portable blower, the excellent selectivity of all having no way of.

The utility model content

The purpose of this utility model provides a kind of flame-proof mine dual power supply two-circuit vacuum intelligent electromagnetic trigger, control has from dominance to main air blower, the two-circuit vacuum electromagnetic starter is under the dual power supply situation in the prior art to solve, and main and auxiliary trigger all can arbitrarily first deficiency of starting.

The technical solution of the utility model is as follows:

Flame-proof mine dual power supply two-circuit vacuum intelligent electromagnetic trigger, include the main air blower control loop, the accessory fan control loop, the main air blower control loop mainly comprises insulating phase-change switch (1), transformer (BK1), auxiliary reclay (1ZJ), contactor (1ZJJ), protector (BHQ1), on-line switch (1K); The accessory fan control loop mainly comprises insulating phase-change switch (2), transformer (BK2), auxiliary reclay (2ZJ), contactor (2ZJJ), protector (BHQ2), on-line switch (2K), start button (2QA1); It is characterized in that being equipped with between described protector (BHQ1) and the on-line switch (1K) control protected location (1KB), the time-delay disconnected node (1KB1) of control protected location (1KB) is received on the connection terminal at start button (2QA1) two ends; The normally closed node (1KB2) of control protected location (1KB) receives protector (BHQ2) and it is often opened between the node (2DJ1).

Described control protected location (1KB) is the time relay, or the time of being made up of electronic circuit control protector, or the time control protector of being made up of the analog or digital circuit.

Control protected location (1KB) can be the time relay, also can control protector by the time that electronic circuit is formed, and also can control protector etc. by the time that other analog or digital circuit is formed.It provides the working power of a 36V, 1KB1 by the main air blower electric power system is the time-delay disconnected node of control protected location 1KB, and it is attempted by on the start button 2QA1 of accessory fan control loop by main and auxiliary loop splicing ear 3#, 4#; 1KB2 is the normally closed node of control protected location 1KB, and it is serially connected on the control loop of accessory fan by main and auxiliary loop splicing ear 5#, 6#.

Compare with prior art, the utility model has from dominance the control of main air blower, in power supply just often, can only start main air blower, can not start accessory fan; When the main air blower power failure or when breaking down, start accessory fan automatically, guarantee coal mine downhole safety production; After the control system or the eliminating of electric power system fault of main air blower, can cut off accessory fan automatically again, main air blower is put into operation again.

Description of drawings

Fig. 1 is the utility model main air blower control loop electrical schematic diagram.

Fig. 2 is the utility model accessory fan control loop electrical schematic diagram.

Embodiment

Electrical principle of the present utility model as shown in Figure 1, 2.Put the switch 2K in the 1K in the main air blower electrical schematic diagram, the accessory fan electrical schematic diagram under on line state earlier closed

reversing switch

1 and 2 o'clock of isolating, and when current supply circuit was in normal condition simultaneously, 1KB got electric, and 1KB1 adhesive, 1KB2 disconnect.Can only start main air blower this moment.

When the main air blower electric power system is cut off the power supply or is broken down; 1DJ1 disconnects, and makes the 1KB dead electricity, thereby makes that 1KB2 (it is the normally closed node of 1KB control protector) is closed immediately; 1KB1 (it is the time-delay disconnected node of 1KB control protector) time-delay disconnects, and starts accessory fan automatically.

After main air blower electric power system and the fault that taken place are excluded, the closed reversing switch 1 of isolating, the 1DJ1 closure, it is electric to make that 1KB gets, thereby makes 1KB2 disconnect immediately, makes to make main air blower reset automatically by the accessory fan auto stop simultaneously.

Said process is because the effect of time relay 1KB has realized that main air blower is from excellent optionally function.

Time relay 1KB get electric after, 1KB1 is through time-delay 0-60 second (adjustable continuously) automatic cutout, 1KB2 auto-closing.

Following table is the device symbol and the title table of comparisons among Fig. 1, Fig. 2

Symbol	The main air blower control loop	Symbol	The accessory fan control loop
	The main air blower control loop		The accessory fan control loop	The name of an article	The name of an article
	1X1、1X2、1X3		The inlet wire connection terminal	The name of an article	The name of an article	2X1、2X2、2X3	The inlet wire connection terminal
BK1	1X1、1X2、1X3	Transformer	The inlet wire connection terminal	BK2	Transformer	2X1、2X2、2X3	The inlet wire connection terminal
BK1	1ZJ	Transformer	Auxiliary reclay	BK2	Transformer	2ZJ	Auxiliary reclay
1ZJ1、 1ZJ2	1ZJ	Auxiliary reclay often open node	Auxiliary reclay	2ZJ1、2ZJ2	Auxiliary reclay often open node	2ZJ	Auxiliary reclay
1ZJ1、 1ZJ2	1ZJ3	Auxiliary reclay often open node	The normally closed node of auxiliary reclay	2ZJ1、2ZJ2	Auxiliary reclay often open node	2ZJ3	The normally closed node of auxiliary reclay
1ZJJ	1ZJ3	Contactor	The normally closed node of auxiliary reclay	2ZJJ	Contactor	2ZJ3	The normally closed node of auxiliary reclay
1ZJJ	1ZJJ1-3	Contactor	The normal opened contact of contactor	2ZJJ	Contactor	2ZJJ1-3	The normal opened contact of contactor
1ZJJ4	1ZJJ1-3	The normally closed contact of contactor	The normal opened contact of contactor	2ZJJ4	The normally closed contact of contactor	2ZJJ1-3	The normal opened contact of contactor
1ZJJ4	1RC	The normally closed contact of contactor	Rc absorber	2ZJJ4	The normally closed contact of contactor	2RC	Rc absorber
BHQ1	1RC	Protector	Rc absorber	BHQ2	Protector	2RC	Rc absorber
BHQ1	1DJ1	Protector	Protector often open node	BHQ2	Protector	2DJ1	Protector often open node
1KB	1DJ1	The control protected location	Protector often open node			2DJ1	Protector often open node
1KB	1KB1	The control protected location	Control protected location time-delay disconnected node
1D1、1D2、1D3	1KB1	The outlet connection terminal	Control protected location time-delay disconnected node	2D1、2D2、2D3	The outlet connection terminal
1D1、1D2、1D3	1TA1	The outlet connection terminal	Stop button	2D1、2D2、2D3	The outlet connection terminal	2TA1	Stop button
1QA1	1TA1	Start button	Stop button	2QA1	Start button	2TA1	Stop button
1QA1	1-1#	Start button	External connection terminal number	2QA1	Start button	2-1#	External connection terminal number
1RD1	1-1#	Fuse	External connection terminal number	1RD1	Fuse	2-1#	External connection terminal number
1RD1	1K	Fuse	Online, unit switch	1RD1	Fuse	2K	Online, unit switch
1#、2#、3#、4#、5#、6#、7#、8#		Main and auxiliary loop shorting stub terminal number				2K	Online, unit switch

Protector BHQ more specifically title: electronic protector, the time relay, micro computer time switch all can.

Claims

1. flame-proof mine dual power supply two-circuit vacuum intelligent electromagnetic trigger, include the main air blower control loop, the accessory fan control loop, the main air blower control loop mainly comprises insulating phase-change switch (1), transformer (BK1), auxiliary reclay (1ZJ), contactor (1ZJJ), protector (BHQ1), on-line switch (1K); The accessory fan control loop mainly comprises insulating phase-change switch (2), transformer (BK2), auxiliary reclay (2ZJ), contactor (2ZJJ), protector (BHQ2), on-line switch (2K), start button (2QA1); It is characterized in that being equipped with between described protector (BHQ1) and the on-line switch (1K) control protected location (1KB), the time-delay disconnected node (1KB1) of control protected location (1KB) is received on the connection terminal at start button (2QA1) two ends; The normally closed node (1KB2) of control protected location (1KB) receives protector (BHQ2) and it is often opened between the node (2DJ1).

2. electromagnetic starter according to claim 1; it is characterized in that described control protected location (1KB) is the time relay; or the time of forming by electronic circuit control protector, or the time control protector of being formed by the analog or digital circuit.