CN2054147U - Boiler interlock protector - Google Patents
Boiler interlock protector Download PDFInfo
- Publication number
- CN2054147U CN2054147U CN 89207090 CN89207090U CN2054147U CN 2054147 U CN2054147 U CN 2054147U CN 89207090 CN89207090 CN 89207090 CN 89207090 U CN89207090 U CN 89207090U CN 2054147 U CN2054147 U CN 2054147U
- Authority
- CN
- China
- Prior art keywords
- relay
- boiler
- contact switch
- motor
- water level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to an automatic safety device which is suitable for a steam boiler which is sensitive for the height of a water level or the situation of overpressure and is used for rejecting or extinguishing the internal combustion of a boiler The automatic safety device solves the technical problems that an existing boiler only warns, and the operation of the boiler is not stopped. The automatic safety device also solves the technical problems of the sequence of operation of an actuating device during the automatic shutdown, etc. The automatic safety device adopts the connecting structure that a signal source and the control structure of an actuating device are interlocked through a relay contact switch and the structure that a time relay is respectively used for the delay control. The automatic safety device has the advantages of simplicity, reliability, strong adaptability, reasonable operation, etc. The safety of the boiler can be ensured. The automatic safety device can be used for automatic safety devices of various steam boilers.
Description
The utility model relates to and is applicable to that more than one steam boilers are high or low and superpressure is responsive to water level, is used to suppress, extinguish the siren or the automatic safety device of the burning in the boiler.
At present the general various alarms of installing of steam boiler just to superpressure, high water level, low water level by indicator lamp and sound equipment display alarm, can not suppress or stop boiler operatiopn automatically.Just there is potential danger in this, and when reporting to the police as boiler water shortage (or superpressure), the stoker personnel are if leave post or sleeping, just might cause serious accident and brings the person or economic heavy losses.
For showing that water level and control water level combine, disclosing application number in the Chinese patent gazette on June 18th, 1986 is 85203219 " demonstration of boiler water level and automaton." to constitute be to have adopted float-type water gage, optical-electrical converter and control signal generation circuit.Weak point is float water level opto-electronic conversion complex structure, bad adaptability and is subject to other factors and disturbs and reduce reliability and lack concrete control connection circuit and be difficult to guarantee to realize reliably its purpose etc.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of boiler interlocking protective device is provided.
The purpose of this utility model can realize by following structure: the boiler interlocking protective device; comprise high and low water level and superpressure signal source that the sensor that can adopt in the existing various alarms and amplifier are formed; the controller that relay, switch and connection line are formed, and alarm indicator and the executing agency that constitutes by fire grate, blower motor, id-motor and the pump motor of controller control.Special feature of the present utility model is that signal source connects by the relay contact switch interlocking with the control device of executing agency.Promptly on the control circuit of fire grate blower motor, id-motor and pump motor, be connected to the normally closed break contact switch of relay respectively by alarm signal control.Special feature of the present utility model also is the relay J of low water level signal controlling
1, the superpressure signal controlling relay J
2Relay J with the high water level signal controlling
3Normally closed break contact switch J
1-1, J
1-2, J
2-1, J
2-2, J
2-3And J
3-1, J
3-2, J
3-3Control relay C on the control circuit of fire grate, blower motor, id-motor and pump motor
1, C
2, C
3, C
4Be connected in series respectively.Special feature of the present utility model also is in low water level signal and relay J
1Between be provided with the time relay sj that is connected in series with the low water level signal, it often opens time-delay moving together contact switch S J
-1With relay J
1Be connected in series, and relay J
1often start and close contact switch J
1-3Time-delay break contact switch S J normally closed with it
1-1Control relay C on the id-motor control circuit
3The time relay sj that is connected in series
1Be connected in series.Special feature of the present utility model also is relay J
3often start and close contact switch J
3-4With relay J
1often start and close contact switch J
1-3Back and time relay sj are connected in parallel
1Be connected in series.
Accompanying drawing is the controller line connection diagram in the utility model specific embodiment.
The utility model is described in further detail below in conjunction with the accompanying drawing illustrated embodiment: be controller line and the signal source in the prior art in the frame of broken lines in the accompanying drawing.C
1Be the fire grate control relay, C
2Be the blower motor control relay, C
3Be the id-motor control relay, C
4It is the pump motor control relay.Time relay sj is connected with the low water level signaling switch, relay J
2Connect relay J with the superpressure signaling switch
3Connect with the high water level signal.Relay SJ often leaves time-delay moving together contact switch S J
-1With relay J
1Series connection, relay J
1And relay J
3often start and close contact switch J
1-3, J
3-4Back in parallel and time relay sj
1Series connection.Be connected with power supply behind the above-mentioned tandem construction parallel.Relay J
1, J
2, J
3Normally closed break contact switch J
1-1, J
2-1, J
3-1, and J
1-2, J
2-2, J
3-2Respectively with relay C
1And C
2Be connected in series.Relay J
2Normally closed disconnected contact switch J
2-3With relay SJ
1Normally closed time-delay break contact switch S J
1-1With relay C
3Be connected in series.Relay J
3Normally closed break contact switch J
3-3With relay C
4Be connected in series.Be connected with power supply behind the same above-mentioned tandem construction parallel.Action of the present utility model is: when the low water level signal was sent into, time relay sj was connected power supply, determines SJ after to one. 9 minute by boiler capacity
-1Action is connected, and makes relay J
1Connecting power supply is J
1-1, J
1-2Disconnection stops fire grate and air blast outage; J
1Connect J simultaneously
1-3Connect, make time relay sj
1Connect power supply, SJ after about ten seconds of delaying time
1-1Disconnect, the id-motor outage is stopped; When the high water level signal is sent into, relay J
3Connect power supply, J
3-1, J
3-2, J
3-3Disconnect, fire grate, air blast and pump motor outage are stopped; While J
3-4Connect time relay sj
1Connect power supply, SJ after about ten seconds of delaying time
1-1Disconnect, the id-motor outage is stopped; When the superpressure signal is sent into, relay J
2Connect power supply, J
2-1, J
2-2, J
2-3Disconnect, fire grate, air blast, id-motor outage are stopped.
That the utility model has compared to existing technology is simple and reliable for structure, utilize existing various alarm transformations can realize the interlocking extensive adaptability of automatic protection functions and time difference between the interlocking action accurately to adjust according to boiler structure, evaporation capacity and load condition, guarantees the advantages such as safe operation of the boiler. Can be widely used on the various steam boilers, be particularly useful in the automatic safety device of various industrial boilers.
Claims (5)
1, boiler interlocking protective device; comprise the signal source that the sensor that can adopt in the existing various alarms and amplifier are formed; the controller that relay, switch and connection line are formed; and alarm indicator and the executing agency that constitutes by fire grate, blower motor, id-motor, the pump motor of controller control; it is characterized in that the connecting of control device of signal source and executing agency, on the control circuit of fire grate, blower motor, id-motor and pump motor, be connected to the normally closed break contact switch of relay respectively by alarm signal control.
2, boiler interlocking protective device according to claim 1 is characterized in that the relay J of low water level signal controlling
1, the superpressure signal controlling relay J
2Relay J with the high water level signal controlling
3Normally closed break contact switch J
1-1, J
1-2, J
2-1, J
2-2, J
2-3And J
3-1, J
3-2, J
3-3Control relay C on the control circuit of fire grate, blower motor, id-motor and pump motor
1, C
2, C
3, C
4Be connected in series respectively.
3, boiler interlocking protective device according to claim 2 is characterized in that in low water level signal and relay J
1Between be provided with the time relay sj that is connected in series with the low water level signal, it often opens time-delay moving together contact switch S J
-1With relay J
1Be connected in series.
4, boiler interlocking protective device according to claim 3 is characterized in that relay J
1often start and close contact switch J
1-3Time-delay break contact switch S J normally closed with it
1-1At id-motor control relay C
3The time relay sj that is connected in series
1Be connected in series.
5, boiler interlocking protective device according to claim 4 is characterized in that relay J
3often start and close contact switch J
3-4With relay J
1Normally opened contact switch J
1-3Be connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207090 CN2054147U (en) | 1989-05-11 | 1989-05-11 | Boiler interlock protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207090 CN2054147U (en) | 1989-05-11 | 1989-05-11 | Boiler interlock protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2054147U true CN2054147U (en) | 1990-03-07 |
Family
ID=4864005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89207090 Withdrawn CN2054147U (en) | 1989-05-11 | 1989-05-11 | Boiler interlock protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2054147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051609B (en) * | 2006-04-04 | 2011-01-05 | 北京中科信电子装备有限公司 | High voltage protective interlock for ion injector |
| CN105756982A (en) * | 2014-12-16 | 2016-07-13 | 天津宏顺源科技有限公司 | Frequency conversion control system of boiler |
-
1989
- 1989-05-11 CN CN 89207090 patent/CN2054147U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051609B (en) * | 2006-04-04 | 2011-01-05 | 北京中科信电子装备有限公司 | High voltage protective interlock for ion injector |
| CN105756982A (en) * | 2014-12-16 | 2016-07-13 | 天津宏顺源科技有限公司 | Frequency conversion control system of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |