CN210865043U - Monitoring alarm device for slag conveyer of circulating fluidized bed boiler - Google Patents
Monitoring alarm device for slag conveyer of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN210865043U CN210865043U CN201921743505.1U CN201921743505U CN210865043U CN 210865043 U CN210865043 U CN 210865043U CN 201921743505 U CN201921743505 U CN 201921743505U CN 210865043 U CN210865043 U CN 210865043U
- Authority
- CN
- China
- Prior art keywords
- monitoring
- proximity switch
- branch
- fluidized bed
- alarm
- 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.)
- Active
Links
Images
Landscapes
- Control Of Conveyors (AREA)
Abstract
The utility model belongs to the technical field of circulating fluidized bed boiler slag conveying, and provides a circulating fluidized bed boiler slag conveying machine monitoring and alarming device, which comprises a first monitoring branch, a second monitoring branch and an alarming branch which are connected in parallel at two ends of a power supply, wherein the first monitoring branch comprises a first proximity switch SQ1 and a coil KT1 of a first power-on time delay relay which are connected in series; the second monitoring branch comprises a second proximity switch SQ2 and a coil KT2 of a second power-on delay relay which are connected in series; in the alarm branch, a normally open contact KT1 'of the first power-on delay relay and a normally open contact KT 2' of the second power-on delay relay are connected in parallel and then are connected in series with an alarm; the first proximity switch SQ1 and the second proximity switch SQ2 are arranged on the side surface of a bull gear of the boiler slag conveyor and are respectively aligned with the tooth tip part and the tooth empty part of the bull gear. The utility model discloses can realize defeated sediment machine running state's monitoring, its simple structure, reliable and stable.
Description
Technical Field
The utility model belongs to the technical field of circulating fluidized bed boiler slag conveying, concretely relates to circulating fluidized bed boiler slag conveying machine monitoring alarm device.
Background
A slag conveying system matched with a boiler adopted by a central heating company is used for bearing the important task of continuously discharging waste slag during boiler combustion. The slag conveyer is a bucket type slag conveying transmission mechanism, and a driving part of the slag conveyer is a gear set belt transmission mechanism driven by a motor. The operation stability of the slag conveyor is directly related to whether the boiler can safely, continuously and stably operate. At present, due to various reasons, a slag conveyor frequently breaks down and stops, so that ash slag leaks outwards. If the operating personnel can not find and remove the fault in time, the boiler can be directly put out a fire by the construction, and the continuous and stable operation of heat supply is seriously influenced. Therefore, the monitoring and alarming device capable of monitoring the running state of the slag conveyor and timely alarming and reminding operators to discharge faults when the slag conveyor breaks down and stops is designed, and the device is very helpful for ensuring continuous and stable running heat supply of a boiler for a centralized heat supply company.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art exists not enough, can not in time report to the police in order to solve current sediment machine and can not keep watch on the running state, can lead to the lime-ash to leak easily, cause the boiler to put out a fire, influence the problem of the continuous steady operation of heat supply, provide a circulating fluidized bed boiler sediment machine monitoring alarm device.
In order to solve the technical problem, the utility model discloses a technical scheme be: the monitoring and alarming device for the slag conveyor of the circulating fluidized bed boiler comprises a first monitoring branch, a second monitoring branch and an alarming branch which are connected to two ends of a power supply in parallel, wherein the first monitoring branch comprises a first proximity switch SQ1 and a coil KT1 of a first time relay which are connected in series; the second monitoring branch comprises a second proximity switch SQ2 and a coil KT2 of a second time relay connected in series; in the alarm branch, a normally open contact KT1 'of the first time relay and a normally open contact KT 2' of the second time relay are connected in parallel and then are connected in series with the alarm; the first proximity switch SQ1 and the second proximity switch SQ2 are arranged on the side surface of a bull gear of the boiler slag conveyor and are respectively aligned with the tooth tip part and the tooth empty part of the bull gear.
Defeated sediment machine of circulating fluidized bed boiler monitoring alarm device, still include first pilot lamp HL1 and second pilot lamp HL2, first pilot lamp HL1 parallel connection is at the coil KT1 both ends of first time relay, second pilot lamp HL2 parallel connection is at the both ends of the coil KT2 of first time relay.
The monitoring and alarming device for the slag conveyor of the circulating fluidized bed boiler further comprises a test switch SB, and the test switch SB is connected with a normally open contact KT 1' of a first time relay in parallel.
The first and second proximity switches SQ1 and SQ2 are fixedly provided on an auxiliary plate located on the side of the bull gear.
The first time relay and the second time relay are power-on delay relays.
When the slag conveyor normally operates, the first proximity switch and the second proximity switch are alternately aligned with the tooth tips and the tooth spaces of the gears, and the first monitoring branch and the second monitoring branch are alternately switched on and off. The first indicator light and the second indicator light are also alternately blinked. The coil of the first power-on time delay relay and the coil of the second power-on time delay relay are alternately powered on and powered off, and the coil of the normally-open contact is alternately powered on and the time is extremely short, so that the two normally-open contacts are not closed, the alarm branch is not switched on, and the alarm does not give an alarm. When the slag conveyor stops operating, the first proximity switch and the second proximity switch are simultaneously aligned with the tooth tips and the tooth spaces of the gears, one of the two monitoring branches is in a conducting state, the coil of the power-on delay relay is powered on, after the set delay time passes, the normally-open contact of the power-on delay relay is closed, the alarm branch is conducted, the alarm gives an alarm, and an operator is reminded to check and remove faults. The alarm branch is connected with an alarm test switch in parallel, so that operators can manually close the alarm during shift, the alarm is tested to be good or bad, and the situation that the alarm cannot give an alarm in time due to burning down is avoided.
Compared with the prior art, the utility model following beneficial effect has: 1. the circuit structure is simple, and the cost is low; 2. the operation is stable and reliable, the operation state of the slag conveyor can be monitored in real time, the indication lamp flickers for display, and when the slag conveyor stops, the alarm gives an alarm to remind of removing faults; 3. the alarm state is tested manually, and the alarm is prevented from being burnt out and cannot give an alarm in time.
Drawings
FIG. 1 is a schematic circuit diagram of a monitoring and alarming device for a slag conveyor of a circulating fluidized bed boiler according to an embodiment of the present invention;
FIG. 2 is a front view of the proximity switch in the installed position;
FIG. 3 is a left side view of FIG. 2;
in the figure: 1 is the tooth tip, 2 is the tooth space, 3 is the auxiliary disc, 4 is the gear wheel, and 5 is the alarm.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a monitoring and alarming device for a slag conveyor of a circulating fluidized bed boiler, comprising a power supply, an air switch QS, a first monitoring branch, a second monitoring branch and an alarming branch, wherein, after passing through the air switch QS, one end of the power supply is connected with the other end of the power supply respectively through the first monitoring branch, the second monitoring branch and the alarming branch which are connected in parallel; the first monitoring branch comprises a first proximity switch SQ1 and a coil KT1 of a first power-on delay relay connected in series; the second monitoring branch comprises a second proximity switch SQ2 and a coil KT2 of a second power-on delay relay which are connected in series; in the alarm branch circuit, the normally open contact KT1 'of the first electric delay relay that obtains and the normally open contact KT 2' parallel connection back and the 5 series connection of alarm that obtain of second electric delay relay.
As shown in fig. 2, a first proximity switch SQ1 and a second proximity switch SQ2 are provided at the side of a bull gear of a boiler slag conveyor and are aligned with the tooth tip 1 and the tooth space 2 of the bull gear, respectively.
Further, the monitoring and alarming device for the slag conveyor of the circulating fluidized bed boiler further comprises a first indicator lamp HL1 and a second indicator lamp HL2, wherein the first indicator lamp HL1 is connected to the two ends of a coil KT1 of the first electric delay relay in parallel, and the second indicator lamp HL2 is connected to the two ends of a coil KT2 of the first electric delay relay in parallel.
Further, the monitoring and alarming device for the slag conveyor of the circulating fluidized bed boiler further comprises a test switch SB, and the test switch SB is connected with a normally open contact KT 1' of the first power-on delay relay in parallel.
Further, as shown in fig. 3, a first proximity switch SQ1 and a second proximity switch SQ2 are fixedly provided on the auxiliary plate 3 located on the side surface of the large gear. In this embodiment, the alarm 5 may be an electric bell.
When the device is installed and used, the first proximity switch SQ1 and the second proximity switch SQ2 are respectively installed on the side face of a bull gear of a driving part of the slag conveyor and are respectively aligned with the tip of a certain tooth and the tooth space. And closing an air switch QS and starting a monitoring alarm device. When the slag conveyor normally operates, the large gear rotates, when the tooth tip part is aligned with the proximity switch SQ1, the tooth space is aligned with the proximity switch SQ2, the SQ1 contact is closed, the SQ2 contact is opened, when the tooth tip part is aligned with the proximity switch SQ2, the tooth space is aligned with the proximity switch SQ1, the SQ2 contact is closed, the SQ1 contact is opened, along with the rotation of the gear, the tooth tip part and the tooth space alternately pass through the two proximity switches, the first proximity switch SQ1 and the second proximity switch SQ2 are alternately closed and opened, the first monitoring branch and the second monitoring branch are alternately and instantaneously switched on and off, and the first indicator light HL1 and the second indicator light HL2 are alternately turned on and off to present a continuous flashing. The coil KT1 of the first power-on delay relay and the coil KT2 of the second power-on delay relay are alternately and instantaneously powered on and powered off. Because the time delay is set for the electricity-getting delay relay, therefore under the instant circumstances of getting electricity, the normally open contact KT1 'of the first electricity-getting delay relay and the normally open contact KT 2' of the second electricity-getting delay relay all can not be closed, and the warning branch road does not switch on, and alarm 5 does not report to the police. When the slag conveyor is in failure shutdown, the bull gear stops rotating, one of the first proximity switch SQ1 and the second proximity switch SQ2 must be aligned with the tooth tip, the first monitoring branch and the second monitoring branch must be conducted, one of the indicator lights must be in a normally on state, and the other indicator light must be in a normally off state. At the moment, the coil KT1 of the first electric delay relay and the coil KT2 of the second electric delay relay must have one to get electricity and begin timing, after the set time, the normally open contact KT1 'of the first electric delay relay and the normally open contact KT 2' of the second electric delay relay must have one to be closed, the alarm branch is switched on, and the alarm 5 gives an alarm to remind the operating personnel to patrol and remove faults. When the operator changes shift, the alarm test switch SB can be manually closed to test whether the state of the alarm 5 is normal or not, so that the alarm is prevented from being burnt out and cannot give an alarm in time.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The monitoring and alarming device for the slag conveyor of the circulating fluidized bed boiler is characterized by comprising a first monitoring branch, a second monitoring branch and an alarming branch which are connected to two ends of a power supply in parallel, wherein the first monitoring branch comprises a first proximity switch SQ1 and a coil KT1 of a first time relay which are connected in series; the second monitoring branch comprises a second proximity switch SQ2 and a coil KT2 of a second time relay connected in series; in the alarm branch, a normally open contact KT1 'of the first time relay and a normally open contact KT 2' of the second time relay are connected in parallel and then are connected in series with the alarm; the first proximity switch SQ1 and the second proximity switch SQ2 are arranged on the side surface of a bull gear of the boiler slag conveyor and are respectively aligned with the tooth tip part (1) and the tooth hollow part (2) of the bull gear.
2. The monitoring alarm device for the circulating fluidized bed boiler slag conveyor according to claim 1, further comprising a first indicator lamp HL1 and a second indicator lamp HL2, wherein the first indicator lamp HL1 is connected in parallel across the coil KT1 of the first time relay, and the second indicator lamp HL2 is connected in parallel across the coil KT2 of the first time relay.
3. The monitoring alarm device for the circulating fluidized bed boiler slag conveyor according to claim 1, further comprising a test switch SB connected in parallel with a normally open contact KT 1' of a first time relay.
4. The monitoring alarm device for the circulating fluidized bed boiler slag conveyor according to claim 1, wherein the first proximity switch SQ1 and the second proximity switch SQ2 are fixedly provided on an auxiliary plate (3) located at a side of the bull gear.
5. The circulating fluidized bed boiler slag conveyor monitoring and alarm device of claim 1, wherein the first and second time relays are energized delay relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743505.1U CN210865043U (en) | 2019-10-17 | 2019-10-17 | Monitoring alarm device for slag conveyer of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743505.1U CN210865043U (en) | 2019-10-17 | 2019-10-17 | Monitoring alarm device for slag conveyer of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210865043U true CN210865043U (en) | 2020-06-26 |
Family
ID=71290583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921743505.1U Active CN210865043U (en) | 2019-10-17 | 2019-10-17 | Monitoring alarm device for slag conveyer of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210865043U (en) |
-
2019
- 2019-10-17 CN CN201921743505.1U patent/CN210865043U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201388052Y (en) | Power supply reverse polarity protection device | |
| CN102720595B (en) | Engine overspeed protection and control method | |
| CN110838609A (en) | Power battery thermal runaway protection method, device and system | |
| CN111060803A (en) | Circuit breaker tripping and closing circuit full-working-condition monitoring circuit | |
| CN207921463U (en) | A kind of electrically operated valve failure detector | |
| CN210865043U (en) | Monitoring alarm device for slag conveyer of circulating fluidized bed boiler | |
| CN207625278U (en) | A kind of novel induction furnace inverter and furnace body isolation control system | |
| CN203617676U (en) | Burning loss prevention detection and protective device used for circuit breaker closing coil | |
| CN216390843U (en) | Automatic water supply control system and control cabinet | |
| CN201178514Y (en) | Alarm lamp abnormity monitoring device | |
| CN210399040U (en) | Kitchen oil smoke electrostatic filter control system | |
| CN111431145B (en) | Passive end anti-stall circuit, passive end anti-stall system composed of same and passive end anti-stall method | |
| CN110289684B (en) | Automatic restart control equipment and method for microcomputer device | |
| CN113946135A (en) | Circuit breaker mechanism test monitoring device based on PLC | |
| CN218567546U (en) | Automatic alarm control device | |
| CN214121439U (en) | Temperature alarm device of carbon black production | |
| CN113933477B (en) | Continuous monitoring system for coal mining machine after onboard gas monitoring and power failure | |
| CN110267023A (en) | A kind of Laser Driven protective device and method that projector uses | |
| CN212012128U (en) | Passive end anti-stall circuit | |
| CN201314272Y (en) | Automatic alarm fuel generator | |
| CN215612807U (en) | Double-barrel glue quantity display alarm device of automatic glue dispenser | |
| CN211038990U (en) | Remove carwash sewage automatic purification control system | |
| JPH0746767A (en) | Power supply apparatus | |
| CN219592168U (en) | Automatic alarm power distribution cabinet | |
| CN212012127U (en) | Passive end anti-stalling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |