CN203115979U - Automatic water replenishing device for residual heat boiler - Google Patents
Automatic water replenishing device for residual heat boiler Download PDFInfo
- Publication number
- CN203115979U CN203115979U CN 201220737726 CN201220737726U CN203115979U CN 203115979 U CN203115979 U CN 203115979U CN 201220737726 CN201220737726 CN 201220737726 CN 201220737726 U CN201220737726 U CN 201220737726U CN 203115979 U CN203115979 U CN 203115979U
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- motor
- circuit
- switch
- heat boiler
- normally opened
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Abstract
An automatic water replenishing device for a residual heat boiler belongs to the field of industrial electric control, comprises a control cabinet and a circuit part placed in the control cabinet and is characterized in that a signal line (7) is arranged at one side of the control cabinet to connect normally opening contacts of an upper relay and a lower relay of a digital instrument into the circuit part, the circuit part comprises a power supply circuit, a manual automatic switching circuit and a motor switching circuit, the power supply circuit is connected with the manual automatic switching circuit and the motor switching circuit respectively for powering the elements used in the manual automatic switching circuit and the motor switching circuit, and the power supply circuit is connected with a motor at the same time for powering the motor selected by the motor switching circuit. The automatic water replenishing device for the residual heat boiler adopts the upper and lower limit signals of the digital instrument as the control signal of the work of the motor, thus realizing the automatic water replenishing for the water level in the residual heat boiler.
Description
Technical field
The waste heat boiler automatic water-replenishing device belongs to industrial electric control field.Be specifically related to a kind of device that utilizes digital instrument upper and lower limit signal to carry out automatic water supplement for waste heat boiler inside as signal source.
Background technology
Waste heat boiler refers to utilize heat that waste heat in waste gas, waste material or the waste liquid in the various industrial process and combustible thereof burning back produces that water is heated to the boiler of certain working medium, undertakes the heating heat exchange.Before not transforming, be manually-operated to the water supplementing method of water level in the waste heat boiler, namely by using digital instrument to show water level in the stove, operating personnel carry out water level by the mode that opens, stops the moisturizing motor to it and control to guarantee that its water yield keeps constant.Adopt this mode that following defective is arranged: (1), hydraulic pressure cause heat exchanger effectiveness to reduce in instability, waste heat energy; Temperature is non-constant, causes puzzlement to the clerical workforce.(2), the people may appear for maloperation, make system's fluctuation of service or other situations occur.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of upper and lower limit signal of digital instrument that adopts as the control signal of motor work, realized the water level in the waste heat boiler is carried out the waste heat boiler automatic water-replenishing device of automatic water supplement.
The technical scheme that its technical problem that solves the utility model adopts is: this waste heat boiler automatic water-replenishing device, comprise switch board and the circuit part that is placed in the switch board, it is characterized in that: switch board one side is provided with holding wire, with the normally opened contact place in circuit part of the upper and lower limit relay in the digital instrument; Circuit part comprises power circuit, hand automatic switch-over circuit and motor commutation circuit, power circuit connects hand automatic switch-over circuit and motor commutation circuit successively, be used components and parts power supply in hand automatic switch-over circuit and the motor commutation circuit, power circuit links to each other with motor simultaneously, is the selected motor power supply of motor commutation circuit.
Described circuit part, the end of normally opened contact KM2-1 ~ KM2-3 of contactor KM2 in parallel successively after live wire L1, L2, L3 series electrical source switch QF and the electrothermal relay FR1, the other end of normally opened contact KM2-1 ~ KM2-3 connects motor M2; The end of normally opened contact KM1-1 ~ KM1-3 of while contactor KM1 in parallel after live wire L1, L2, L3 series electrical source switch QF and the electrothermal relay FR1, the other end of normally opened contact KM1-1 ~ KM1-3 connects motor M1;
Live wire L1, L2, after the L3 series electrical source switch QF, live wire L3 is the end of the normally-closed contact FR1-1 of electrothermal relay FR1 in parallel simultaneously, the other end of normally-closed contact FR1-1 connects the moved end 0 of switch S A1, the normally opened contact KA1-1 of while relay K A1 in parallel after the normally-closed contact KA2-1 of the not moved end 2 SRE KA2 of switch S A1, the end of the lower limit normally opened contact ALM1 of digital instrument and upper limit normally opened contact ALM2, the other end of the lower limit normally opened contact ALM1 of digital instrument and upper limit normally opened contact ALM2 are parallel to after the coil of SRE KA1 and relay K A2 respectively on the live wire L2 between power switch QF and the electrothermal relay FR1;
While start button SB2 in parallel after the not moved end 1 series connection stop button SB1 of switch S A1, the normally opened contact KM1-4 of contactor KM1, the end of the normally opened contact KM2-4 of contactor KM2, start button SB2, the normally opened contact KM1-4 of contactor KM1, the other end of the other end of the normally opened contact KM2-4 of contactor KM2 and the normally opened contact KA1-1 of relay K A1 connects the moved end 0 of switch S A2 simultaneously, the not moved end 1 of switch S A2 and not moved end 2 be parallel to after the coil of series contactor KM1 and contactor KM2 respectively on the live wire L2 between power switch QF and the electrothermal relay FR1.
Described switch board is cuboid, and relative opposite side extracting power supply cord with holding wire is equipped with start button, stop button, hand automatic transfer switch and motor change-over switch successively on the panel of switch board.
Compared with prior art, the beneficial effect that has of the present utility model is:
1, adopts the upper and lower limit signal of digital instrument as the control signal of motor duty, realized the automatic supply to water level in the waste heat boiler;
2, realized the switching of manual and automatic two kinds of patterns by switch, further guaranteed Water Level Control in the waste heat boiler;
3, be equipped with spare motor, prevented the inconvenience that causes because of motor fault;
4, simple in structure, applied range.
Description of drawings
Fig. 1 is this practical control cabinet schematic diagram.
Fig. 2 is the utility model circuit controlling party block diagram.
Fig. 3 is the utility model circuit theory diagrams.
Wherein: 1, power line 2, panel 3, start button 4, stop button 5, hand automatic transfer switch 6, motor change-over switch 7, holding wire.
The specific embodiment
Fig. 1 ~ 3rd, most preferred embodiment of the present utility model is described further below in conjunction with 1 ~ 3 pair of the utility model of accompanying drawing.
As shown in Figure 1, the switch board of this device is cuboid, and switch board one side extracting power supply cord 1 links to each other with the live wire of supply line; Opposite side is drawn holding wire 7, links to each other with the upper and lower limit relay of digital instrument.Start button 3, stop button 4, hand automatic transfer switch 5 and motor change-over switch 6 are installed on the panel 2 of switch board successively.Hand automatic transfer switch 5 is used for switching the mode of operation of this device, and when switching to automatic mode, this device control motor automatically is that waste heat boiler carries out moisturizing; When mode of operation was manual mode, operating personnel finished the moisturizing operation by pressing the control that start button 3 and stop button 4 are realized motor.Motor change-over switch 6 realizes the switching of work motor and spare motor, when one of them motor breaks down, can realize the switching of motor by motor change-over switch 6.Circuit part is placed in the switch board, connects start button 3, stop button 4, hand automatic transfer switch 5, motor change-over switch 6 and other electric elements, realizes the control to this device mode of operation.
As shown in Figure 2, circuit part comprises power circuit, hand automatic switch-over circuit, motor commutation circuit.Power circuit connects hand automatic switch-over circuit and motor commutation circuit successively, be used components and parts power supply in hand automatic switch-over circuit and the motor commutation circuit, power circuit links to each other with motor simultaneously, for the selected motor power supply of motor commutation circuit, guarantees the operation of motor.
As shown in Figure 3, the end of normally opened contact KM2-1 ~ KM2-3 of contactor KM2 in parallel successively after live wire L1, L2, L3 series electrical source switch QF and the electrothermal relay FR1, the other end of normally opened contact KM2-1 ~ KM2-3 connects motor M2, is motor M2 power supply; The end of normally opened contact KM1-1 ~ KM1-3 of while contactor KM1 in parallel after live wire L1, L2, L3 series electrical source switch QF and the electrothermal relay FR1, the other end of normally opened contact KM1-1 ~ KM1-3 connects motor M1, is motor M1 power supply.
After live wire L1, L2, the L3 series electrical source switch QF, live wire L3 is the end of the normally-closed contact FR1-1 of electrothermal relay FR1 in parallel simultaneously, it is hand automatic transfer switch 5 that the other end of normally-closed contact FR1-1 connects switch S A1() moved end 0, when switch S A1(is hand automatic transfer switch 5) moved end 0 when moved end 1 is not connected, device is in manual work pattern; When switch S A1(is hand automatic transfer switch 5) moved end 0 when moved end 2 is not connected, device is in automatic operation mode.
Switch S A1(is hand automatic transfer switch 5) the normally-closed contact KA2-1 of not moved end 2 SRE KA2 after normally opened contact KA1-1, the lower limit normally opened contact ALM1 of digital instrument of relay K A1 in parallel and the end of upper limit normally opened contact ALM2 simultaneously, the other end of the lower limit normally opened contact ALM1 of digital instrument and upper limit normally opened contact ALM2 is parallel to after the coil of SRE KA1 and relay K A2 respectively on the live wire L2 between power switch QF and the electrothermal relay FR1.
Switch S A1(is hand automatic transfer switch 5) not moved end 1 series connection stop button SB1(be stop button 4) start button SB2(in parallel is start button 3 simultaneously afterwards), the end of the normally opened contact KM2-4 of normally opened contact KM1-4, the contactor KM2 of contactor KM1, start button SB2(is start button 3), to connect switch S A2(simultaneously be motor change-over switch 6 for the other end of the normally opened contact KA1-1 of the other end of the normally opened contact KM2-4 of normally opened contact KM1-4, the contactor KM2 of contactor KM1 and relay K A1) moved end 0.Switch S A2(is motor change-over switch 6) not moved end 1 and not moved end 2 be parallel to after the coil of series contactor KM1 and contactor KM2 respectively on the live wire L2 between power switch QF and the electrothermal relay FR1.
The concrete course of work is as follows:
Before the work of this device, the motor that the staff at first determine to need uses, so that be that example describes with motor M1:
At first, the moved end 0 of switch S A2 is connected with moved end 1 not, switches to motor M1, operating personnel need select to use manual mode or automatic mode then.When selecting manual mode, at first the moved end 0 of switch S A1 is connected with moved end 1 not.Starting power switch QF then is the whole system power supply, press start button SB2 then, the coil of contactor KM1 powers on, normally opened contact KM1-1 ~ KM1-3 adhesive of contactor KM1, motor M1 starts working, and begin moisturizing in the waste heat boiler, normally opened contact KM1-4 adhesive simultaneously makes start button SB2 keep on-state.When water level reached requirement in the waste heat boiler, operating personnel pressed stop button SB1, the coil power down of contactor KM1, and normally opened contact KM1-1 ~ KM1-4 disconnects, and motor M1 quits work, moisturizing in the position of rest waste heat boiler.
When operating personnel select automatic mode, at first the moved end 0 of switch S A1 is connected with moved end 2 not.Connect power switch QF then, this moment, digital instrument detected the liquid level in the waste heat boiler automatically, be lower than when liquid level under the liquid level of setting in limited time, the lower limit actuating of relay in the digital instrument, normally opened contact ALM1 adhesive, the coil of relay K A1 powers on and moves, normally opened contact KA1-1 adhesive, the coil of contactor KM1 powers on and moves, normally opened contact KM1-1 ~ KM1-3 adhesive of contactor KM1, motor M1 starts working, and begins moisturizing in the waste heat boiler, normally opened contact KM1-4 adhesive simultaneously makes start button SB2 keep on-state; Liquid level reaches on the liquid level and prescribes a time limit in digital instrument detects waste heat boiler, the upper limit actuating of relay in the digital instrument, normally opened contact ALM2 adhesive, the coil of relay K A2 powers on and moves, normally-closed contact KA2-1 disconnects, the coil power down of relay K A1, normally opened contact KA1-1 disconnects, simultaneously the coil power down of contactor KM1, normally opened contact KM1-1 ~ KM1-4 disconnects, motor M1 quits work, and stops to moisturizing in the waste heat boiler, and so forth.
When if the staff determine to need uses motor M2, at first with the moved end 0 of switch S A2 and not moved end 2 be connected the loop that powers on of connection contactor KM2.The course of work of the manual and automatic mode of motor M2 is identical with motor M1's, does not repeat them here.
This device not only can use on to waste heat boiler in use, can also be applied to as required on the boiler of other types.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (2)
1. the waste heat boiler automatic water-replenishing device comprises switch board and the circuit part that is placed in the switch board, and it is characterized in that: switch board one side is provided with holding wire (7), with the normally opened contact place in circuit part of the upper and lower limit relay in the digital instrument; Circuit part comprises power circuit, hand automatic switch-over circuit and motor commutation circuit, power circuit connects hand automatic switch-over circuit and motor commutation circuit successively, be used components and parts power supply in hand automatic switch-over circuit and the motor commutation circuit, power circuit links to each other with motor simultaneously, is the selected motor power supply of motor commutation circuit.
2. waste heat boiler automatic water-replenishing device according to claim 1, it is characterized in that: described switch board is cuboid, relative opposite side extracting power supply cord with holding wire (7) (1) is equipped with start button (3), stop button (4), hand automatic transfer switch (5) and motor change-over switch (6) successively on the panel of switch board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737726 CN203115979U (en) | 2012-12-28 | 2012-12-28 | Automatic water replenishing device for residual heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737726 CN203115979U (en) | 2012-12-28 | 2012-12-28 | Automatic water replenishing device for residual heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115979U true CN203115979U (en) | 2013-08-07 |
Family
ID=48896318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737726 Expired - Fee Related CN203115979U (en) | 2012-12-28 | 2012-12-28 | Automatic water replenishing device for residual heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115979U (en) |
-
2012
- 2012-12-28 CN CN 201220737726 patent/CN203115979U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102605 Beijing Daxing District Yun Zhen Kang Shun Fa Shang Industrial Park No. 1 Patentee after: BEIJING JINJING WISDOM CO., LTD. Patentee after: Shandong Jinjing Energy-Saving Glass Co., Ltd. Address before: 102605 Beijing Daxing District Yun Zhen Kang Shun Fa Shang Industrial Park No. 1 Patentee before: Beijing Jinjing Zhihui Solar Energy Material Co., Ltd. Patentee before: Shandong Jinjing Energy-Saving Glass Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |