CN117387057A - Steam drum water level alarm device, steam drum and boiler - Google Patents
Steam drum water level alarm device, steam drum and boiler Download PDFInfo
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- CN117387057A CN117387057A CN202311148086.8A CN202311148086A CN117387057A CN 117387057 A CN117387057 A CN 117387057A CN 202311148086 A CN202311148086 A CN 202311148086A CN 117387057 A CN117387057 A CN 117387057A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 230000005856 abnormality Effects 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/46—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/78—Adaptations or mounting of level indicators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Computer Security & Cryptography (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present disclosure relates to a drum water level alarm device, a drum and a boiler. The drum water level alarm device (100) comprises: the input ends of the three quality judging circuits (1) are used for being connected with three external water level sensors, the output ends of the three quality judging circuits are connected with the first input ends of the two-in-one or one-out-of-one judging circuits (4), and the output ends of the three quality judging circuits are also connected with the first input ends of the three first AND gate circuits (3) through the three NOT gate circuits (2); the second input ends of the three first AND gates are used for being connected with three external water level sensors, and the output ends of the three first AND gates are connected with the second input ends of the two-in-one or one-out-of-one judging circuits. In this way, when one or two of the three water level sensors fail, the water level abnormality signal output from the water level sensor that does not fail can be logically judged by taking two or one.
Description
Technical Field
The disclosure relates to the technical field of drum control, in particular to a drum water level alarm device, a drum and a boiler.
Background
The steam drum is a cylindrical pressure vessel used for steam-water separation and steam purification in a boiler, and forms a water circulation loop and stores boiler water. The water level in the steam drum is an important parameter of the generator set, and when the water level of the steam drum is in a normal range, the generator set operates normally; when the drum water level exceeds the normal range (for example, the drum water level is too low), if corresponding measures are not taken in time, the influence on the safe operation of the generator set is large, and equipment damage can be caused. Therefore, it is necessary to monitor whether the drum water level is in a normal range.
Disclosure of Invention
The purpose of the present disclosure is to provide a drum water level alarm device, a drum and a boiler, which can perform one-out-of-two or one-out-of-one logic judgment on a water level abnormality signal output by a water level sensor which does not have a fault under the condition that one or two of three water level sensors have a fault.
In order to achieve the above object, the present disclosure provides a drum water level alarm device including:
the three quality judging circuits are used for being connected with three external water level sensors, the output ends of the three quality judging circuits are connected with the first input ends of the two-in-one or one-out-of-one judging circuits, the output ends of the three quality judging circuits are also connected with the first input ends of the three first AND gate circuits through three NOT gate circuits, and each quality judging circuit outputs a high-level signal under the condition that the external water level sensor connected with the quality judging circuits fails;
the second input ends of the three first AND gates are used for being connected with the three external water level sensors, and the output ends of the three first AND gates are connected with the second input ends of the two-in-one or one-out-of-one judging circuits; wherein each of the external water level sensors outputs a high level signal to the first and gate circuit connected thereto in case of detecting a water level abnormality;
the two-out-of-one or one-out-of-one judging circuit is used for outputting a high-level signal under the condition that the second input end of the two-out-of-one or one-out-of-one judging circuit receives one or two high-level signals.
Optionally, the one-out-of-two or one-out-of-one judging circuit includes: the first OR gate circuit, the second OR gate circuit and the second AND gate circuit;
the input end of the second AND gate circuit is respectively connected with the output end of the first OR gate circuit and the output end of the second OR gate circuit;
the three input ends of the first or gate circuit are the second input ends of the two-out-of-one or one-out-of-one judging circuit, the three input ends of the second or gate circuit are the first input ends of the two-out-of-one or one-out-of-one judging circuit, and the output ends of the second or gate circuit are the output ends of the two-out-of-one or one-out-of-one judging circuit.
Optionally, the drum water level alarm device further comprises: a third and a second judging circuits;
the three input ends of the three-out-of-two judging circuit are respectively connected with the output ends of the three first AND gate circuits;
and the three-out-of-two judging circuit outputs a high-level signal under the condition that at least two of three input ends of the three-out-of-two judging circuit receive the high-level signal.
Optionally, the drum water level alarm device further comprises: a third OR gate;
the first input end of the third OR gate circuit is connected with the output end of the three-out-of-two judging circuit, and the second input end of the third OR gate circuit is connected with the output end of the two-out-of-one or one-out-of-one judging circuit;
wherein the third or gate outputs a high level signal in a case where at least one of the first input terminal of the third or gate and the second input terminal of the third or gate receives the high level signal.
Optionally, the drum water level alarm device further comprises: and the alarm module is connected with the output end of the third OR gate circuit and is used for sending an alarm instruction under the condition of receiving the high-level signal.
Optionally, the drum water level alarm device further comprises: and the output module is connected with the alarm module and is used for outputting alarm information under the condition of receiving the alarm instruction.
Optionally, the output module includes a buzzer and an indicator light.
Optionally, the output module includes a display screen.
The present disclosure also provides a drum comprising three water level sensors and the drum water level alarm device described above.
The present disclosure also provides a boiler comprising the steam drum described above.
Through above-mentioned technical scheme, drum water level alarm device includes: three quality judging circuits, three NOT circuits, three first AND circuits and one or two one judging circuits. The input ends of the three quality judging circuits are used for being connected with three external water level sensors, the output ends of the three quality judging circuits are connected with the first input ends of the two-in-one or one-out-of-one judging circuits, the output ends of the three quality judging circuits are also connected with the first input ends of the three first AND gate circuits through three NOT gate circuits, and each quality judging circuit outputs a high-level signal under the condition that the external water level sensor connected with the quality judging circuits fails; the second input ends of the three first AND gates are used for being connected with three external water level sensors, and the output ends of the three first AND gates are connected with the second input ends of the two-in-one or one-out-of-one judging circuits; wherein, each external water level sensor outputs a high level signal to a first AND gate circuit connected with the external water level sensor when detecting water level abnormality; the one-out-of-two or one-out-of-one judging circuit is used for outputting a high-level signal under the condition that the second input end of the one-out-of-two or one-out-of-one judging circuit receives one or two high-level signals. In this way, under the condition that one of the three water level sensors fails, the two-out-of-one logic judgment can be reliably carried out on the water level abnormal signals output by the two water level sensors which do not fail; in the case that two of the three external water level sensors fail, a logical judgment can be reliably made on the water level abnormality signal output from one water level sensor that does not fail.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
fig. 1 is a schematic diagram of a drum water level alarm device, according to an exemplary embodiment.
Fig. 2 is a schematic view of a drum water level alarm device according to yet another exemplary embodiment.
Description of the reference numerals
1 quality judging circuit 2 NOT gate 3 first AND gate circuit
4 two or one judgment circuit 5 first OR gate circuit 6 second OR gate circuit
7. Alarm module of second AND gate circuit 9 and third OR gate circuit 10
8. Three-out-two judging circuit 11 output module 100 drum water level alarm device
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It should be noted that, all actions for acquiring signals, information or data in the present disclosure are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.
Fig. 1 is a schematic diagram of a drum water level alarm device, according to an exemplary embodiment. As shown in fig. 1, the drum water level alarm device 100 includes three quality judgment circuits 1, three not gates 2, three first and gates 3, and one-out-of-two or one-out-of-one judgment circuit 4.
The input ends of the three quality judging circuits 1 are used for being connected with three external water level sensors, the output ends of the three quality judging circuits 1 are connected with the first input ends of the two-in-one or one-out-of-one judging circuits 4, the output ends of the three quality judging circuits 1 are also connected with the first input ends of the three first AND gate circuits 3 through the three NOT gate circuits 2, and each quality judging circuit 1 outputs a high-level signal under the condition that the external water level sensor connected with the quality judging circuits fails;
the second input ends of the three first AND gates 3 are used for being connected with three external water level sensors, and the output ends of the three first AND gates 3 are connected with the second input ends of the two-in-one or one-out-of-one judging circuits 4; wherein each external water level sensor outputs a high level signal to a first and circuit 3 connected thereto in case of detecting a water level abnormality;
the one-out-of-two or one-out-of-one judging circuit 4 is used for outputting a high level signal when the second input end of the one-out-of-two judging circuit 4 receives one or two high level signals.
When the three external water level sensors detect a drum water level abnormality, high level signals (water level abnormality signals) are output to first input terminals of the first and gate circuits 3 connected thereto, respectively. When one of the three external water level sensors fails, the quality judgment circuit 1 connected to the failed external water level sensor outputs a high-level signal, converts the high-level signal into a low-level signal by the not-gate circuit 2, and outputs the low-level signal to the second input terminal of the first and-gate circuit 3 connected to the failed external water level sensor, and the first and-gate circuit 3 outputs a high-level signal when the high-level signal is received by both the first input terminal and the second input terminal, so that the first and-gate circuit 3 connected to the failed external water level sensor does not output a signal. The two quality judging circuits 1 connected with the two external water level sensors which do not have faults output low-level signals, the low-level signals are respectively converted into high-level signals through the NOT gate 2 and then output to the second input ends of the two first AND gate circuits 3 connected with the two external water level sensors which do not have faults, the first input ends and the second input ends of the two first AND gate circuits 3 connected with the two external water level sensors which do not have faults receive the high-level signals, so that one high-level signal is respectively output to the second input ends of the one or one judging circuit 4, the quality judging circuit 1 connected with the external water level sensor which does not have faults outputs the high-level signal to the first input end of the one or one judging circuit 4, and the first input end and the second input end of the one or one judging circuit 4 receive the high-level signals.
In the case where two of the three external water level sensors fail, the two quality judgment circuits 1 connected to the two failed external water level sensors output high-level signals, which are converted to low-level signals by the not-gate circuits 2, and output the low-level signals to the second input terminals of the two first and-gate circuits 3 connected to the two failed external water level sensors, respectively, and the first and-gate circuits 3 output high-level signals when the first and second input terminals receive high-level signals, so that the two first and-gate circuits 3 connected to the two failed external water level sensors do not output signals. The quality judging circuit 1 connected with the external water level sensor which does not have faults outputs a low-level signal, the low-level signal is changed into a high-level signal through the NOT gate 2 and then is output to the second input end of the first AND gate 3 connected with the external water level sensor which does not have faults, the first input end and the second input end of the first AND gate 3 connected with the external water level sensor which does not have faults receive the high-level signal, so that the high-level signal is output to the second input end of the one-out-of-two or one-out-of-one judging circuit 4, the quality judging circuit 1 connected with the external water level sensor which does not have faults outputs the high-level signal to the first input end of the one-out-of-two or one-out-of-one judging circuit 4, and the first input end and the second input end of the one-out-of-one judging circuit 4 both receive the high-level signal, and the high-level signal is output after one-out-of-one logic judgment is carried out on the water level abnormal signal which does not have faults.
Through above-mentioned technical scheme, drum water level alarm device includes: three quality judging circuits, three NOT circuits, three first AND circuits and one or two one judging circuits. The input ends of the three quality judging circuits are used for being connected with three external water level sensors, the output ends of the three quality judging circuits are connected with the first input ends of the two-in-one or one-out-of-one judging circuits, the output ends of the three quality judging circuits are also connected with the first input ends of the three first AND gate circuits through three NOT gate circuits, and each quality judging circuit outputs a high-level signal under the condition that the external water level sensor connected with the quality judging circuits fails; the second input ends of the three first AND gates are used for being connected with three external water level sensors, and the output ends of the three first AND gates are connected with the second input ends of the two-in-one or one-out-of-one judging circuits; wherein, each external water level sensor outputs a high level signal to a first AND gate circuit connected with the external water level sensor when detecting water level abnormality; the one-out-of-two or one-out-of-one judging circuit is used for outputting a high-level signal under the condition that the second input end of the one-out-of-two or one-out-of-one judging circuit receives one or two high-level signals. In this way, under the condition that one of the three water level sensors fails, the two-out-of-one logic judgment can be reliably carried out on the water level abnormal signals output by the two water level sensors which do not fail; in the case that two of the three external water level sensors fail, a logical judgment can be reliably made on the water level abnormality signal output from one water level sensor that does not fail.
Fig. 2 is a schematic view of a drum water level alarm device according to yet another exemplary embodiment. As shown in fig. 2, the one-out-of-two or one-out judging circuit 4 includes a first or gate 5, a second or gate 6, and a second and gate 7.
The input end of the second AND gate 7 is respectively connected with the output end of the first OR gate 5 and the output end of the second OR gate 6;
the three input ends of the first or gate 5 are the second input ends of the two-in-one or one-out-of-one judging circuit 4, the three input ends of the second or gate 6 are the first input ends of the two-in-one or one-out-of-one judging circuit 4, and the output ends of the second or gate 7 are the output ends of the two-in-one or one-out-of-one judging circuit 4.
In the case where at least one of the three input terminals of the first or gate 5 receives a high level signal, the first or gate 5 outputs a high level signal. In the case where at least one of the three input terminals of the second or gate 6 receives a high level signal, the second or gate 6 outputs a high level signal. When the first input terminal and the second input terminal of the second and circuit 7 each receive a high level signal, the high level signal is output.
In this embodiment, by providing the first or gate, the second or gate, and the second and gate in the one-out-of-two or one-out-of-two circuit, the circuit is simple and the reliability is good.
In yet another embodiment, the drum level alarm device 100 further includes a two-out-of-three determination circuit 8.
The three input ends of the three-out-of-two judging circuit 8 are respectively connected with the output ends of the three first AND gate circuits 3;
wherein, in the case that at least two of the three input ends of the two-out-of-three judging circuit 8 receive the high level signal, the two-out-of-three judging circuit 8 outputs the high level signal.
When the three external water level sensors all output high level signals (water level abnormality), if none of the three external water level sensors fails, the three quality judgment circuits 1 all output low level signals, so that the second or gate circuit 6 outputs low level signals, the second and gate circuit 7 outputs low level signals, and the one or one judgment circuit 4 outputs low level signals.
The high level signals output by the three external water level sensors can be respectively input to the second input ends of the three first and gate circuits 3, the low level signals output by the three quality judging circuits 1 are respectively converted into high level signals by the NOT gate circuits 2 and then output to the first input ends of the three first and gate circuits 3, so that the three first and gate circuits 3 output the high level signals to the three input ends of the three two-out judging circuits 8, and the output ends of the three two-out judging circuits 8 output the high level signals.
When the three external water level sensors all output high level signals, if at least one of the three external water level sensors fails, the first AND gate circuit 3 connected with the failed external water level sensor does not output signals, and the three-out-of-two judging circuit 8 does not output signals.
In this embodiment, by providing the three-out-of-two judgment circuit 8 in the drum water level alarm device, it is possible to reliably make a three-out-of-two logical judgment on the water level abnormality signals output from the three external water level sensors in the case where the three external water level sensors have not failed.
In a further embodiment, the drum level alarm device 100 further comprises a third or gate 9.
The first input end of the third OR gate circuit 9 is connected with the output end of the three-out-two judging circuit 8, and the second input end of the third OR gate circuit 9 is connected with the output end of the one-out-two or one-out-of-one judging circuit 4;
wherein the third or-gate circuit 9 outputs a high level signal in case that at least one of the first input terminal of the third or-gate circuit 9 and the second input terminal of the third or-gate circuit 9 receives the high level signal.
In this embodiment, by providing the third or circuit in the drum water level alarm device, the three-out-of-two logic judgment can be performed by the three-out-of-two judgment circuit water level abnormality signal in the case that the three external water level sensors do not fail, and the two-out-of-one or one-out-of-one judgment circuit can perform the two-out-of-one or one-out-of-one logic judgment on the water level abnormality signal in the case that one or two of the three external water level sensors fail.
In yet another embodiment, the drum level alarm device 100 further comprises an alarm module 10.
And the third OR gate circuit 9 is connected with the output end of the third OR gate circuit and is used for sending an alarm instruction under the condition of receiving the high-level signal. When a high level signal is received, the water level in the drum can be considered to have exceeded the normal range, and an alarm command can be sent.
In the embodiment, the alarm module can timely send the alarm instruction under the condition of receiving the high-level signal water level abnormality, so that the safety is improved.
In yet another embodiment, the drum level alarm device 100 further comprises an output module 11.
Is connected with the alarm module 10 for outputting an alarm message in case of receiving an alarm instruction.
In the embodiment, the technician can timely and accurately acquire the alarm message, so that the technician can conveniently and timely take corresponding processing means, and the processing efficiency is improved.
In yet another embodiment, the output module 11 includes a buzzer and an indicator light.
The buzzer achieves an alarm effect by emitting sound, and the indicator lamp achieves the alarm effect by flashing light. Under the condition of receiving the alarm instruction, the honey device can be controlled to make a sound, and meanwhile, the indicator lamp is controlled to flash light.
In the embodiment, two kinds of alarm effects of different sounds and lights are set to output alarm information, and the alarm effect is good.
In yet another embodiment, the output module 11 comprises a display screen.
Under the condition of receiving the alarm instruction, the display screen can be controlled to output a popup message, for example, a 'water level abnormality in a steam drum, please process in time', so as to output an alarm message.
In the embodiment, the display screen displays the alarm message in a text form, so that the intuitiveness is high, and the technician can conveniently check the alarm message.
The present disclosure also provides a drum comprising three water level sensors and the drum water level alarm device described above.
The present disclosure also provides a boiler comprising the steam drum described above.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A drum water level alarm device, characterized in that the drum water level alarm device (100) comprises:
the three quality judging circuits (1), the input ends of the three quality judging circuits (1) are used for being connected with three external water level sensors, the output ends of the three quality judging circuits (1) are connected with the first input ends of the two-out-of-one or one-out-of-one judging circuits (4), the output ends of the three quality judging circuits (1) are also connected with the first input ends of the three first AND gate circuits (3) through the three NOT gate circuits (2), and each quality judging circuit (1) outputs a high level signal under the condition that the external water level sensor connected with the quality judging circuits fails;
the second input ends of the three first AND gates (3) are used for being connected with the three external water level sensors, and the output ends of the three first AND gates (3) are connected with the second input ends of the two-in-one or one-out-of-one judging circuits (4); wherein each of the external water level sensors outputs a high level signal to the first and gate circuit (3) connected thereto in the case of detecting a water level abnormality;
the two-out-of-one or one-out-of-one judging circuit (4) is used for outputting a high-level signal under the condition that the second input end of the two-out-of-one or one-out-of-one judging circuit (4) receives one or two high-level signals.
2. Drum water level alarm device according to claim 1, characterized in that said one-out-of-two or one-out-of-one judging circuit (4) comprises: a first OR gate (5), a second OR gate (6) and a second AND gate (7);
the input end of the second AND gate circuit (7) is respectively connected with the output end of the first OR gate circuit (5) and the output end of the second OR gate circuit (6);
the three input ends of the first or gate circuit (5) are the second input ends of the two-out-of-one or one-out-of-one judging circuit (4), the three input ends of the second or gate circuit (6) are the first input ends of the two-out-of-one or one-out-of-one judging circuit (4), and the output end of the second or gate circuit (7) is the output end of the two-out-of-one or one-out-of-one judging circuit (4).
3. The drum water level alarm device as claimed in claim 1, wherein the drum water level alarm device (100) further comprises: a three-out-two judging circuit (8);
three input ends of the three-out-of-two judging circuit (8) are respectively connected with the output ends of the three first AND gates (3);
wherein, under the condition that at least two of three input ends of the three-out-of-two judging circuit (8) receive high level signals, the three-out-of-two judging circuit (8) outputs high level signals.
4. A drum water level alarm device as claimed in claim 3, characterized in that the drum water level alarm device (100) further comprises: a third OR gate (9);
the first input end of the third OR gate circuit (9) is connected with the output end of the three-out-of-two judging circuit (8), and the second input end of the third OR gate circuit (9) is connected with the output end of the two-out-of-one judging circuit (4);
wherein the third or-gate (9) outputs a high level signal in case that at least one of the first input of the third or-gate (9) and the second input of the third or-gate (9) receives a high level signal.
5. The drum water level alarm device as recited in claim 4, characterized in that the drum water level alarm device (100) further comprises: and the alarm module (10) is connected with the output end of the third OR gate (9) and is used for sending an alarm instruction under the condition of receiving the high-level signal.
6. The drum water level alarm device as recited in claim 5, characterized in that the drum water level alarm device (100) further comprises: and the output module (11) is connected with the alarm module (10) and is used for outputting an alarm message under the condition of receiving the alarm instruction.
7. Drum water level alarm device according to claim 6, characterized in that the output module (11) comprises a buzzer and an indicator light.
8. Drum level alarm device according to claim 6, characterized in that the output module (11) comprises a display screen.
9. A drum, characterized by comprising three water level sensors and a drum water level alarm device (100) according to any one of claims 1-8.
10. A boiler comprising the drum of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311148086.8A CN117387057A (en) | 2023-09-06 | 2023-09-06 | Steam drum water level alarm device, steam drum and boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311148086.8A CN117387057A (en) | 2023-09-06 | 2023-09-06 | Steam drum water level alarm device, steam drum and boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117387057A true CN117387057A (en) | 2024-01-12 |
Family
ID=89463820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311148086.8A Pending CN117387057A (en) | 2023-09-06 | 2023-09-06 | Steam drum water level alarm device, steam drum and boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117387057A (en) |
-
2023
- 2023-09-06 CN CN202311148086.8A patent/CN117387057A/en active Pending
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