CN219641036U - Material level abnormity alarm device - Google Patents
Material level abnormity alarm device Download PDFInfo
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- CN219641036U CN219641036U CN202321211084.4U CN202321211084U CN219641036U CN 219641036 U CN219641036 U CN 219641036U CN 202321211084 U CN202321211084 U CN 202321211084U CN 219641036 U CN219641036 U CN 219641036U
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- 239000000463 material Substances 0.000 title claims abstract description 97
- 230000006698 induction Effects 0.000 claims abstract description 36
- 230000002159 abnormal effect Effects 0.000 claims description 27
- 230000009471 action Effects 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 abstract 1
- 230000005856 abnormality Effects 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a material level abnormity alarm device, and relates to the technical field of coal dust storage detection of a thermal power plant. The device disclosed by the utility model comprises: the device comprises a material hammer, a pulley block, a movable magnetic induction piece, at least one fixed magnetic switch and at least one alarm circuit; the pulley block comprises a connecting piece, one end of the connecting piece is connected with the material hammer, and the material hammer is arranged in the storage bin and is contacted with the upper surface of the material in the storage bin; the other end of the connecting piece is connected with the movable magnetic induction piece outside the storage bin, and the mass of the material hammer is larger than that of the movable magnetic induction piece; the outside of feed bin is provided with at least one fixed magnetic switch, fixed magnetic switch with alarm circuit connects when moving the magnetism spare to fixed magnetic switch department, fixed magnetic switch is closed, alarm circuit switches on and carries out the unusual warning of material level, helps reporting to the police when the inside material level of storage is unusual.
Description
Technical Field
The utility model relates to the technical field of coal ash storage detection of a thermal power plant, in particular to a material level abnormality alarm device.
Background
The measurement of the powder level of the coal powder bin in the thermal power plant is crucial to ensure the normal operation of the thermal power plant, and for the detection of the powder level of the coal powder bin, the measurement of the powder level and accurate alarm are always difficult problems for the power plant due to factors such as severe environment in the powder bin, high explosion-proof requirement and the like, although various detection instruments are available. In the prior art, the sensor is installed or a simple electric element is used for detecting the material level height information, and an alarm function is realized by matching with an alarm, but because the environment in the powder bin is bad and dust flies, after the powder bin is used for a period of time, the dust can adhere to or wrap the sensor or the electric element, so that the sensor or the electric element cannot normally measure, and further, the alarm cannot be timely performed, and further, the greater danger that the thermal power plant cannot normally run is easily caused.
Disclosure of Invention
In view of the above, the utility model provides a material level abnormality alarm device, which mainly aims to alarm when the material level in the warehouse is abnormal.
In order to achieve the above object, the present utility model provides a level abnormality alarm device, comprising:
the device comprises a material hammer, a pulley block, a movable magnetic induction piece, at least one fixed magnetic switch and at least one alarm circuit;
the pulley block comprises a connecting piece, one end of the connecting piece is connected with the material hammer, and the material hammer is arranged in the storage bin and is contacted with the upper surface of the material in the storage bin; the other end of the connecting piece is connected with the movable magnetic induction piece outside the storage bin, and the mass of the material hammer is larger than that of the movable magnetic induction piece; the outside of the storage bin is provided with at least one fixed magnetic switch, the fixed magnetic switch is connected with the alarm circuit, when the movable magnetic induction piece moves to the fixed magnetic switch, the fixed magnetic switch is closed, and the alarm circuit is conducted and performs abnormal alarm on the material level.
In one embodiment of the present utility model, optionally, the fixed magnetic switch comprises a high level magnetic switch, the alarm circuit comprises a high level alarm circuit, the high level alarm circuit comprises a high level alarm, and the high level magnetic switch is connected with the high level alarm circuit;
when the movable magnetic induction piece moves to the height position of the high material level magnetic switch, the high material level magnetic switch is closed under the magnetic action of the movable magnetic induction piece, so that the high material level alarm circuit is conducted, and the high material level alarm carries out high material level abnormal alarm.
In one embodiment of the present utility model, optionally, the fixed magnetic switch comprises a low level magnetic switch, the low level magnetic switch has a height higher than that of the high level magnetic switch, the alarm circuit comprises a low level alarm circuit comprising a low level alarm, and the low level magnetic switch is connected with the low level alarm circuit;
when the movable magnetic induction piece moves to the height position of the low material level magnetic switch, the low material level magnetic switch is closed under the magnetic action of the movable magnetic induction piece, so that the low material level alarm circuit is conducted, and the low material level alarm gives an abnormal alarm of the low material level.
In one embodiment of the present utility model, optionally, the alarm circuit includes a relay, a reset switch, and an alarm, where the relay, the reset switch, and the alarm are connected in series, and the reset switch is a normally closed switch;
and when the reset switch is pressed, the relay is disconnected, so that the alarm circuit is disconnected, and the alarm stops abnormal material level alarm.
In one embodiment of the present utility model, optionally, the alarm circuit further comprises a delay relay connected in series with the alarm, the delay relay being connected in parallel with the relay;
after the reset switch is pressed, the relay is disconnected;
and the delay relay starts to delay and count when the relay is opened, and is closed at preset time so as to enable the alarm circuit to be conducted, and the alarm alarms again.
In one embodiment of the utility model, optionally, the device further comprises at least one air switch connected in series with the fixed magnetic switch and the alarm circuit, the air switch being used to disconnect the alarm circuit.
In one embodiment of the utility model, optionally, the alarm circuit further comprises a power transfer switch, a power supply, a terminal, a junction box, and a cable.
According to the material level abnormality alarming device provided by the utility model, the change of the upper surface of the material in the storage bin is obtained at any time through the movement of the movable magnetic induction piece, and the alarming circuit is conducted to alarm in time when the movable magnetic induction piece moves to the fixed magnetic switch, so that the purpose of alarming when the material level in the storage bin is abnormal is achieved.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
fig. 1 shows a schematic structural diagram of a material level abnormality alarm device provided by an embodiment of the present utility model;
fig. 2 shows an electrical schematic diagram of a level abnormality alarm device according to an embodiment of the present utility model.
Detailed Description
The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In order to further describe the technical means and effects adopted for achieving the preset aim of the utility model, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the utility model with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
A level abnormality warning apparatus according to some embodiments of the present utility model will be described below with reference to fig. 1 to 2.
In one embodiment of the present utility model, a level abnormality alarm device 1 is provided, as shown in fig. 1, the device 1 includes: the device comprises a hammer 10, a pulley block 20, a movable magnetic induction piece 30, at least one fixed magnetic switch and at least one alarm circuit; wherein, the pulley block 20 comprises a connecting piece, one end of the connecting piece is connected with the material hammer 10, and the material hammer 10 is arranged in the bin and contacts with the upper surface of the material in the bin; the other end of the connecting piece is connected with the movable magnetic induction piece 30 outside the storage bin, and the mass of the material hammer 10 is larger than that of the movable magnetic induction piece 30; the outside of the storage bin is provided with at least one fixed magnetic switch, the fixed magnetic switch is connected with the alarm circuit, when the movable magnetic induction piece 30 moves to the fixed magnetic switch, the fixed magnetic switch is closed, and the alarm circuit is conducted and performs abnormal alarm on the material level.
The material level abnormality alarming device provided by the embodiment of the utility model is applied to the material level monitoring of the pulverized coal ash bin and is used for alarming when the material level inside the bin is abnormal. The pulley block 20 comprises a connecting piece and two fixed pulleys, the pulley block 20 is arranged outside a bin, the two fixed pulleys are arranged in parallel at external fixed positions higher than the bin, the fixed positions and the number of the fixed pulleys can be adjusted according to requirements and are used for changing the connecting direction of the connecting piece, one end of the connecting piece is connected with a material hammer 10 inside the bin, the other end of the connecting piece is connected with a movable magnetic induction piece 30 outside the bin, the mass of the material hammer 10 is larger than that of the movable magnetic induction piece 30, the material hammer 10 is in contact with the upper surface of the material inside the bin, when the upper surface of the material inside the bin moves, the material hammer 10 moves together with the upper surface of the material inside the bin, so as to drive the movable magnetic induction piece 30 outside the bin to move, at least one fixed magnetic switch is arranged outside the bin, the position of the abnormal magnetic switch is an abnormal material level magnetic switch with different positions, the position of the abnormal magnetic switch can be automatically set according to requirements, when the movable magnetic induction piece 30 moves to the abnormal material level switch, the abnormal magnetic switch is closed, and the abnormal material level is more timely adjusted, and the dangerous state is more dangerous state occurs.
Through the technical scheme of the embodiment, the material hammer 10 moves along with the upper surface of the inside of the storage bin, the movement of the material hammer 10 drives the movement of the movable magnetic induction piece 30, the change of the upper surface of the material inside the storage bin is obtained at any time, when the movable magnetic induction piece 30 moves to the fixed magnetic switch, the alarm circuit is conducted to alarm, the abnormal material level can be timely alarmed, compared with the prior art, the influence of the environment on the material level gauge is reduced, the material level gauge is not required to be checked regularly, the manual maintenance amount and the spare part consumption amount are reduced, the monitoring process is simple and convenient, the monitoring result is visual, and the accuracy of the material level alarm action is improved.
In the above-described embodiment of the present utility model, optionally, as shown in fig. 1 and 2, the fixed magnetic switch includes a high level magnetic switch 40, the alarm circuit includes a high level alarm circuit 60, the high level alarm circuit 60 includes a high level alarm, and the high level magnetic switch 40 is connected to the high level alarm circuit 60; when the movable magnetic induction member 30 moves to the height position of the high level magnetic switch 40, the high level magnetic switch 40 is closed under the magnetic action of the movable magnetic induction member 30, so that the high level alarm circuit 60 is turned on, and the high level alarm gives an abnormal alarm of the high level.
In the above embodiment, as shown in fig. 1, the fixed magnetic switch includes a high level magnetic switch 40 (KH), that is, a high level magnetic switch 40 corresponding to a high level of the material in the bin, the alarm circuit includes a high level alarm circuit 60, the high level alarm circuit 60 includes a high level alarm, the high level magnetic switch 40 is connected to the high level alarm circuit 60, and a fixed magnetic switch may be correspondingly connected to an alarm circuit; the movable magnetic switch has magnetism, and the high-level magnetic switch 40 can be closed under the magnetic action of the movable magnetic induction piece 30; for example, when the material in the bin reaches 20 meters high, the movable magnetic sensor 30 descends to a height position corresponding to the high level magnetic switch 40, and the high level magnetic switch 40 is closed due to magnetic action, so that the high level alarm circuit 60 is turned on, the alarm comprises a buzzer alarm, and the high level alarm sends out a voice alarm on site to give out a high level alarm, so that an operator can adjust the operation mode in time. The system can realize timely abnormal material level alarm of high material level and remind operators to adjust the operation mode, and plays a role in protecting the normal and safe operation of the fly ash storage system.
In the above embodiment of the present utility model, optionally, the fixed magnetic switch includes a low level magnetic switch 50, the low level magnetic switch 50 has a height higher than that of the high level magnetic switch 40, the alarm circuit includes a low level alarm circuit 70, the low level alarm circuit 70 includes a low level alarm, and the low level magnetic switch 50 is connected to the low level alarm circuit 70; when the movable magnetic induction member 30 moves to the height position of the low level magnetic switch 50, the low level magnetic switch 50 is closed under the magnetic action of the movable magnetic induction member 30, so that the low level alarm circuit 70 is conducted, and the low level alarm gives an abnormal low level alarm.
In the above embodiment, as shown in fig. 1, the fixed magnetic switch includes a low level magnetic switch 50 (KL), that is, a low level magnetic switch 50 corresponding to a low level of the material in the bin, wherein the height of the low level magnetic switch 50 is higher than that of the high level magnetic switch 40, and when the movable magnetic sensor 30 moves between the low level magnetic switch 50 and the high level magnetic switch 40, it indicates that the height of the material in the bin is in a normal range; the alarm circuit includes a low level alarm circuit 70, the low level alarm circuit 70 includes a low level alarm, and the low level magnetic switch 50 is connected to the low level alarm circuit 70; for example, when the material in the bin reaches 2 meters high, the movable magnetic sensor 30 is lifted to a height position corresponding to the low level magnetic switch 50, and the low level magnetic switch 50 is closed due to magnetic action, so that the low level alarm circuit 70 is turned on, and the low level alarm sends out a voice alarm "low level alarm" on site, and the operator is asked to adjust the operation mode in time "to perform abnormal low level alarm. The system and the method realize abnormal material level alarm of low material level when the material level is too low in time, remind operators to adjust the operation mode, and reduce the occurrence of hidden danger of pulverized coal storage.
In the above embodiment of the present utility model, optionally, the alarm circuit includes a relay, a reset switch, and an alarm, where the relay, the reset switch, and the alarm are connected in series, and the reset switch is a normally closed switch; and when the reset switch is pressed, the relay is disconnected, so that the alarm circuit is disconnected, and the alarm stops abnormal material level alarm.
In the above embodiment, as shown in fig. 2, the alarm circuit alarms due to abnormal material level, and in the embodiment of the present utility model, two alarm circuits are included, one is a high material level alarm circuit 60 and one is a low material level alarm circuit 70, the reset switch is a normally closed switch, in the low material level alarm circuit 70, when a worker presses the reset switch SB1, the normally closed switch SB1 is opened, so that the relay KA is disconnected, and the low material level alarm circuit 70 is disconnected, and the low material level alarm stops alarming; in the high-level alarm circuit 60, when the worker presses the reset switch SB2, the normally closed switch SB2 is turned off, and the relay KB is turned off, so that the high-level alarm circuit 60 is turned off, and the high-level alarm stops alarming.
In the above embodiment of the present utility model, optionally, the alarm circuit further includes a delay relay connected in series with the alarm, and the delay relay is connected in parallel with the relay; after the reset switch is pressed, the relay is disconnected; and the delay relay starts to delay and count when the relay is opened, and is closed at preset time so as to enable the alarm circuit to be conducted, and the alarm alarms again.
In the above embodiment, as shown in fig. 2, for example, the power supply is a 24V dc power supply, the alarm is performing abnormal alarm on the material level, in the low material level alarm circuit 70, when an operator presses the reset switch SB1, the relay KA connected in series with the reset switch SB1 is turned off and disconnected, where KA-1 is the antenna of the relay KA, the relay KA is turned off and disconnected, the corresponding antenna is turned off, then the relay KR1 is turned off simultaneously, but the relay KR1 is still in an operating state, and performs delay time from the start of the KA power off, and when the power off time reaches a preset time of 10 minutes, the relay KR1 is turned on, so that the low material level alarm circuit 70 is turned on to alarm, and reminds the operator to perform operation mode adjustment again; or, in the high level alarm circuit 60, when the operator presses the reset switch SB2, the relay KB connected in series with the reset switch SB2 is powered off and disconnected, where KB-1 is the antenna of the relay KB, the relay KB is powered off and disconnected, the corresponding antenna is powered off, and then the relay KR2 is powered off simultaneously, but the relay KR2 is still in a working state, and the time delay is performed from the time KB to power off, and when the power off time reaches the preset time for 20 minutes, the relay KR2 is closed, so that the high level alarm circuit 60 is turned on and alarms, and the operator is reminded of performing operation mode adjustment again.
In the above embodiment of the present utility model, optionally, the device further comprises at least one air switch connected in series with the fixed magnetic switch and the alarm circuit, the air switch being used to disconnect the alarm circuit.
In the above embodiment, the air switch is connected in series with the fixed magnetic switch and the alarm circuit, and when the current in the alarm circuit exceeds the rated current, the air switch automatically turns off the protection alarm circuit, thereby improving the safety performance of the alarm circuit.
In the above embodiment of the present utility model, optionally, the alarm circuit further includes a power supply changeover switch, a power supply, a connection terminal, a connection box, and a cable.
In the above embodiment, the alarm circuit further includes a power transfer switch, a power supply, a connection terminal, a connection box, a cable, and the like, which are configured into an electrical control loop, so that the reliability of the alarm loop operation is improved.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. A level anomaly alarm device, the device comprising:
the device comprises a material hammer, a pulley block, a movable magnetic induction piece, at least one fixed magnetic switch and at least one alarm circuit;
the pulley block comprises a connecting piece, one end of the connecting piece is connected with the material hammer, and the material hammer is arranged in the storage bin and is contacted with the upper surface of the material in the storage bin; the other end of the connecting piece is connected with the movable magnetic induction piece outside the storage bin, and the mass of the material hammer is larger than that of the movable magnetic induction piece; the outside of the storage bin is provided with at least one fixed magnetic switch, the fixed magnetic switch is connected with the alarm circuit, when the movable magnetic induction piece moves to the fixed magnetic switch, the fixed magnetic switch is closed, and the alarm circuit is conducted and performs abnormal alarm on the material level.
2. The apparatus of claim 1, wherein the stationary magnetic switch comprises a high level magnetic switch, the alarm circuit comprises a high level alarm circuit comprising a high level alarm, the high level magnetic switch being connected to the high level alarm circuit;
when the movable magnetic induction piece moves to the height position of the high material level magnetic switch, the high material level magnetic switch is closed under the magnetic action of the movable magnetic induction piece, so that the high material level alarm circuit is conducted, and the high material level alarm carries out high material level abnormal alarm.
3. The apparatus of claim 2, wherein the stationary magnetic switch comprises a low level magnetic switch having a height that is higher than a height of the high level magnetic switch, the alarm circuit comprising a low level alarm, the low level magnetic switch being connected to the low level alarm circuit;
when the movable magnetic induction piece moves to the height position of the low material level magnetic switch, the low material level magnetic switch is closed under the magnetic action of the movable magnetic induction piece, so that the low material level alarm circuit is conducted, and the low material level alarm gives an abnormal alarm of the low material level.
4. The device of claim 1, wherein the alarm circuit comprises a relay, a reset switch, and an alarm, the relay, the reset switch, and the alarm being connected in series, the reset switch being a normally closed switch;
and when the reset switch is pressed, the relay is disconnected, so that the alarm circuit is disconnected, and the alarm stops abnormal material level alarm.
5. The apparatus of claim 4, wherein the alarm circuit further comprises a delay relay in series with the alarm, the delay relay being in parallel with the relay;
after the reset switch is pressed, the relay is disconnected;
and the delay relay starts delay calculation when the relay is opened, and is closed at preset time so as to enable the alarm circuit to be conducted, and the alarm alarms again.
6. The device of claim 1, further comprising at least one air switch in series with the stationary magnetic switch and the alarm circuit, the air switch for opening the alarm circuit.
7. The device of claim 1, wherein the alarm circuit further comprises a power transfer switch, a power source, a terminal, a junction box, and a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321211084.4U CN219641036U (en) | 2023-05-18 | 2023-05-18 | Material level abnormity alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321211084.4U CN219641036U (en) | 2023-05-18 | 2023-05-18 | Material level abnormity alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219641036U true CN219641036U (en) | 2023-09-05 |
Family
ID=87806729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321211084.4U Active CN219641036U (en) | 2023-05-18 | 2023-05-18 | Material level abnormity alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219641036U (en) |
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2023
- 2023-05-18 CN CN202321211084.4U patent/CN219641036U/en active Active
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