CN111862552A - High liquid level self-checking alarm device, system and method - Google Patents

Abstract

The high liquid level self-checking alarm device provided by the invention operates the control device, further controls the self-checking driving device, realizes artificial simulation of rising and falling of the floating ball, enables the detection device to be switched under the fault states that the liquid level is not ultrahigh and the simulated liquid level is ultrahigh, and can send out corresponding sound and light signals through the alarm device, and the control device can judge faults and fault nodes; the high liquid level self-checking alarm system is characterized in that a control operation unit is used for sending a working instruction or a stopping instruction to a self-checking driving module, the self-checking driving module further drives a first connecting rod to rotate according to the instruction, and a second alarm unit makes a distinguishing signal according to whether the system is normal or not; according to the high liquid level self-checking alarm method, under the self-checking driving mode, a work instruction is sent, the high liquid level self-checking alarm device is in a normal state or an abnormal state, each alarm unit has different alarm states, an operator can judge the state of the high liquid level self-checking alarm device, and the method is simple, rapid, visual and effective.

Description

High liquid level self-checking alarm device, system and method

Technical Field

The invention belongs to the technical field of real-time liquid level monitoring of liquid containers, and particularly relates to a high liquid level self-checking alarm device, system and method.

Background

In chemical industry, such as the storage and transportation of liquid dangerous goods in large-scale storage areas and hazardous chemical industry, the requirement on the liquid level of the stored liquid is very strict, and if the liquid level of the stored liquid is ultrahigh, serious potential safety hazard or accident can be caused, so that under the condition, an alarm device with high liquid level is required.

At present, high liquid level alarm devices in the industry mainly comprise a floating ball switch, a tuning fork switch, a magnetic turning plate liquid level meter, an ultrasonic liquid level meter, a radar liquid level meter, sonar, an external liquid level meter and other products, but in the environments of chemical engineering, oil and gas reservoirs, docks and the like, because the high liquid level alarm devices are positioned near oceans, rivers and lakes, the air humidity of the working environment is high, even corrosive gas and the like exist, and mechanical and electronic components are easily corroded, oxidized, struck by lightning and the like, so that the high liquid level alarm devices are out of work. The high liquid level alarm device generally requires a long service life, and if the high liquid level alarm device is abnormally damaged, the high liquid level alarm device is easily overhigh or even leaked under the condition that the high liquid level alarm device cannot be detected and replaced in time, so that surrounding environment pollution and immeasurable potential safety hazards such as explosion and the like are caused.

Therefore, under some special and harsh use environments, the high liquid level alarm device still displays a normal working state after abnormal faults occur, and mechanical structures such as a magnet at the tail end of a floating ball lever are corroded or lose efficacy; the electronic components of the electronic products are damaged due to corrosion, oxidation, aging and the like, and the high liquid level alarm device cannot feed back abnormal phenomena in time, so that potential safety hazards are buried, and adverse consequences are caused. Therefore, the high liquid level alarm device needs a self-checking function, real-time and effective remote detection and local detection can be realized, whether the high liquid level alarm device can normally work or not is judged by a detection means, the high liquid level alarm device is in an effective state, the abnormal state of parts of the high liquid level alarm device can also be detected, and the high liquid level alarm device in the industry at present does not have the function.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a high liquid level self-checking alarm device, a high liquid level self-checking alarm system and a high liquid level self-checking alarm method, is suitable for toxic and harmful industries such as petroleum, chemical engineering and the like, solves the problem that the high liquid level alarm device in the prior industry does not have a self-checking function, and also solves the technical problem that remote judgment and monitoring cannot be realized through remote detection and local detection means.

The invention provides a high liquid level self-checking alarm device, which comprises a floating ball, a first connecting rod, a fixed seat, a self-checking driving device, a detection device, an alarm device and a control device, wherein the floating ball is connected with the first connecting rod;

the floating ball is connected to a first end of the first connecting rod, a first linkage part is arranged at a second end of the first connecting rod, and the middle part of the first connecting rod is connected to the fixed seat through a first fulcrum structure;

the self-checking driving device is connected to the first connecting rod, is used for driving the first connecting rod to rotate around the first fulcrum structure, and is connected with the control device;

the detection device is fixed in the fixed seat, the detection device is provided with a second linkage part, the second linkage part is in linkage connection with the first linkage part, the second linkage part controls the detection device to switch between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state under the driving of the first linkage part, and the detection device is electrically connected with the control device;

the alarm device is electrically connected with the detection device, and the alarm device is electrically connected with the control device.

Furthermore, the fixing seat comprises a first fixing seat, a second fixing seat and an isolation plate, the isolation plate is arranged between the first fixing seat and the second fixing seat, and the isolation plate isolates the first fixing seat from the second fixing seat in the cavity;

the middle part of the first connecting rod is connected to the support of the isolation plate through a first fulcrum structure, the self-checking driving device is connected to the first fixing seat, the detection device is arranged in the second fixing seat cavity, the alarm device is fixed to the second fixing seat, and the first linkage part and the second linkage part are respectively arranged on two sides of the isolation plate.

Further, the detection device is a magnetic switch device, the detection device comprises a trigger mechanism and a switching mechanism, the trigger mechanism comprises a third connecting rod and a trigger connecting plate, a second linkage part is arranged at a first end of the third connecting rod, a second end of the third connecting rod is connected with the trigger connecting plate, the third connecting rod is connected with the second fixing seat through a second fulcrum structure, a third contact and a fourth contact are arranged on the trigger connecting plate, the switching mechanism is provided with a first contact and a second contact, the first contact is arranged corresponding to the third contact, and the second contact is arranged corresponding to the fourth contact.

Further, self-checking drive arrangement includes actuating mechanism and second connecting rod, the first connecting rod is being provided with the connecting block near second end department, second connecting rod first end connect in actuating mechanism, second connecting rod second end articulate in the connecting block, actuating mechanism connect in the outer wall of first fixing base, controlling means control the actuating mechanism drive the second connecting rod carries out concertina movement.

Further, the drive mechanism includes a home-position detection button connected to the first end of the second connecting rod.

Further, the control device is a remote control device and/or an on-site control device;

the remote control device is respectively in signal connection with the self-checking driving device and the detection device, a remote state display device is arranged in the remote control device, and the remote state display device is used for performing sound-light alarm on the state of the high liquid level self-checking alarm device;

the local control device is respectively in signal connection with the self-checking driving device and the detection device.

The invention also provides a system applying the high liquid level self-checking alarm device, which comprises a control module, a self-checking driving module and a detection module;

the control module comprises an operation unit and a first alarm unit, the operation unit is respectively in signal connection with the self-checking driving module and the detection module, the operation unit is used for sending a working instruction or a stopping instruction to the self-checking driving module, the operation unit is also used for receiving a normal instruction and a fault instruction of the detection module, and the first alarm unit is used for sending corresponding state signals according to the working instruction, the stopping instruction, the normal instruction and the fault instruction;

the self-checking driving module comprises a driving unit and a second alarming unit, the driving unit is in signal connection with the control unit, the driving unit is used for receiving a working instruction and a stopping instruction sent by the control unit and driving the first connecting rod to rotate around the first supporting point structure, and the second alarming unit is used for sending out a self-checking acousto-optic signal when the driving unit is in a working state;

the detection module comprises a detection unit and a third alarm unit, the detection unit is in signal connection with the control unit, the detection unit is used for sending a normal instruction or a fault instruction to the control unit, and the third alarm unit is used for sending a fault acousto-optic signal when the detection unit sends the fault instruction.

Further, still include first communication module, second communication module, third communication module and fourth communication module, control module respectively through first communication module, second communication module with self-checking drive module signal connection, control module respectively through third communication module, fourth communication module with detection module signal connection.

Furthermore, the control unit comprises a PLC control system, a manual detection unit and a periodic detection unit, the manual detection unit is used for sending a manual detection instruction to the PLC control system, the periodic detection unit is used for sending a periodic detection instruction to the PLC control system, the PLC control system receives the manual detection instruction and drives the driving unit to work, and the PLC control system receives the periodic detection instruction and drives the driving unit to work according to set periodic detection time.

The invention also provides a method for applying the high liquid level self-checking alarm system, which comprises a normal working mode and a self-checking driving mode;

in a normal working mode, receiving a normal instruction and/or a fault instruction of the detection module, and controlling the first alarm unit to send a normal state signal when receiving the normal instruction; when the fault instruction is received, controlling the first alarm unit to send out a fault state signal and/or controlling the third alarm unit to send out a fault sound and light signal;

in a self-checking driving mode, a working instruction and/or a stopping instruction is sent to the self-checking driving module, when the working instruction is sent, the working instruction is used for controlling the self-checking driving module to be electrified and operated, and is used for controlling the first alarm unit to send out a detection state signal, controlling the second alarm unit to send out a self-checking acousto-optic signal and controlling the third alarm unit to send out a corresponding acousto-optic signal, and if the first alarm unit, the second alarm unit and the third alarm unit all effectively send out acousto-optic signals, the high liquid level self-checking alarm system is proved to be in a normal state; if any one of the first alarm unit, the second alarm unit and the third alarm unit can not send out corresponding sound and light signals, the high liquid level self-checking alarm system is proved to be in an abnormal state; and when the stop instruction is sent, the stop instruction is used for controlling the self-test driving module to stop working.

The invention has the beneficial effects that:

1. the high liquid level self-checking alarm device provided by the invention operates the control device, further controls the self-checking driving device, realizes artificial simulation of rising and falling of the floating ball, enables the detection device to be switched between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state, and can send out a corresponding acousto-optic signal representing the normal state if the high liquid level self-checking alarm device is in the normal state; if the emitted acousto-optic signal is in an abnormal state, the high liquid level self-checking alarm device is in a fault state;

2. the control device in the high liquid level self-checking alarm device is a remote control device and/or a local control device, when the remote control device is a remote control device, the remote control device is arranged in a remote central control room, an operator can operate the remote control device in the central control room to control the detection device to switch between the liquid level non-ultrahigh state and the simulated liquid level ultrahigh state, and the remote state display device arranged in the remote control device sends out corresponding acousto-optic alarm, so that the operator can carry out self-checking action on the high liquid level self-checking alarm device without on site, know specific conditions through the remote state display device and facilitate remote monitoring of the operator; on the contrary, when the device is a local control device, an operator carries out self-checking and observation on the high liquid level self-checking alarm device on site, and judges whether the high liquid level self-checking alarm device is abnormal or not through the acousto-optic alarm sent by the alarm device, so that the operator can conveniently overhaul on site in time;

3. according to the high liquid level self-checking alarm system, an operator sends a working instruction or a stopping instruction to the self-checking driving module through controlling the control unit, the self-checking driving module further drives the first connecting rod to rotate around the first fulcrum structure according to the instruction, and when the system works normally, the second alarm unit sends a self-checking light signal; when the second alarm unit does not send out the self-checking light signal, the system is in an abnormal state; then a distinguishing signal is obtained through the sound-light alarm signal, and whether the high liquid level self-checking alarm device is abnormal or not is judged;

4. according to the high liquid level self-checking alarm method provided by the invention, in the self-checking driving mode, when the working instruction is sent, if the high liquid level self-checking alarm device is normal, the self-checking driving module is normally powered on to work, and the first alarm unit, the second alarm unit and the third alarm unit respectively send out corresponding sound and light signals.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic front view cross section of a high liquid level self-checking alarm device provided by the invention.

Fig. 2 is a schematic front sectional view of the high liquid level self-checking alarm device provided by the invention when the liquid level is not in an ultrahigh state, wherein the floating ball is in a sagging state.

Fig. 3 is a schematic cross-sectional view of a floating ball in a floating state when a liquid level is ultrahigh or a simulated liquid level ultrahigh state in the high liquid level self-checking alarm device provided by the invention.

Fig. 4 is a sectional view taken in the direction B-B in fig. 1.

FIG. 5 is a schematic block diagram of a high liquid level self-checking alarm system provided by the invention.

Fig. 6 is a table of correspondence between light display and trouble code.

Fig. 7 is a light display table for normal state of the device.

Fig. 8 is a table of correspondence between fault codes and fault nodes.

Fig. 9 is a table showing the status of equipment failure and lighting.

Fig. 10 shows a first yellow light, a first red light display and a reverse device failure look-up table.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1:

3 referring 3 to 3 fig. 31 3 to 34 3, 3 wherein 3 fig. 31 3 to 33 3 are 3 front 3 views 3 of 3 a 3 high 3 liquid 3 level 3 self 3- 3 checking 3 alarm 3 device 3 provided 3 in 3 this 3 embodiment 3, 3 and 3 are 3 sectional 3 views 3 in 3 a 3 direction 3 a 3- 3 a 3 in 3 fig. 34 3, 3 in 3 addition 3, 3 fig. 32 3 shows 3 a 3 state 3 in 3 which 3 a 3 floating 3 ball 3 is 3 in 3 a 3 sagging 3 state 3 when 3 a 3 liquid 3 level 3 is 3 not 3 in 3 an 3 ultrahigh 3 state 3, 3 and 3 fig. 33 3 shows 3 a 3 state 3 in 3 which 3 the 3 floating 3 ball 3 is 3 in 3 a 3 floating 3 state 3 when 3 the 3 liquid 3 level 3 is 3 ultrahigh 3 or 3 a 3 simulated 3 liquid 3 level 3 ultrahigh 3 state 3; 3 The embodiment 1 provides a high liquid level self-checking alarm device, which includes a floating ball 1, a first connecting rod 2, a fixing seat 3, a self-checking driving device 4, a detection device 5, an alarm device 6 and a control device;

the floating ball 1 is connected to a first end of the first connecting rod 2, a first linkage part 21 is arranged at a second end of the first connecting rod 2, the middle part of the first connecting rod 2 is connected to the fixed seat 3 through a first fulcrum structure 22, a limiting pin 24 is further arranged on the fixed seat 3, and when the first connecting rod 2 rotates around the first fulcrum structure 22, the limiting pin 24 limits the first connecting rod 2;

the self-checking driving device 4 is connected to the first connecting rod 2, the self-checking driving device 4 is used for driving the first connecting rod 2 to rotate around the first fulcrum structure 22, and the self-checking driving device 4 is connected with the control device;

the detection device 5 is fixed on the fixed seat 3, the detection device 5 is provided with a second linkage part 50, the second linkage part 50 is in linkage connection with the first linkage part 21, the second linkage part 50 controls the detection device 5 to switch between a liquid level non-ultrahigh state and a liquid level ultrahigh state under the driving of the first linkage part 21, and the detection device 5 is electrically connected with the control device;

the alarm device 6 is electrically connected with the detection device 5, the alarm device 6 is electrically connected with the control device, and the alarm device 6 can send out corresponding acousto-optic alarm according to the state change of the self-checking driving device 4 and also can send out corresponding acousto-optic alarm according to the state change of the detection device 5.

It should be noted that, an operator operates the control device to further control the self-checking driving device 4, so as to realize artificial simulation of the rising and falling of the floating ball 1, so that the detection device 5 is switched between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state, and if the high liquid level self-checking alarm device is in the liquid level non-ultrahigh state, the alarm device 6 can send out a corresponding acousto-optic signal representing the liquid level non-ultrahigh state; if the high liquid level self-checking alarm device is in a liquid level ultrahigh state, the alarm device 6 can also send out a corresponding acousto-optic signal representing the liquid level ultrahigh state; the operator can judge whether the high liquid level self-checking alarm device is in a normal state or not through the two different sound and light signals. If a third different acoustic-optical signal is abnormal, then the table of correspondence between light display and fault code, the table of light display in normal state of the device, the table of correspondence between fault code and fault node, the table of light display in fault state of the device and the table of light display in light display and first yellow light, and the table of reverse troubleshooting of first red light display and device fault, which are shown in fig. 6 to fig. 10, are referenced for troubleshooting, the using state of the component can be accurately analyzed, the high liquid level self-checking alarm device can be timely overhauled, and potential safety hazards are effectively eliminated.

Referring to fig. 1, in this embodiment, the fixing seat 3 includes a first fixing seat 31, a second fixing seat 32 and a partition plate 33, the partition plate 33 is disposed between the first fixing seat 31 and the second fixing seat 32, the partition plate 33 partitions the cavities of the first fixing seat 31 and the second fixing seat 32, the first fixing seat 31 and the second fixing seat 32 are connected by a screw, when installing, the partition plate 33 is placed on the screw seat of the first fixing seat 31, the partition plate 33 completely seals the screw seat, and the second fixing seat 32 is screwed to the first fixing seat 31, so as to clamp the partition plate 33;

the middle part of the first connecting rod 2 is connected to a fixed bracket through a first fulcrum structure 22, the fixed bracket is welded on a separation plate 33, the self-checking driving device 4 is connected to a first fixed seat 31, a fixed flange 34 is arranged at the end surface of the first fixed seat 31 far away from a second fixed seat 32, the whole high liquid level self-checking alarm device is fixed with a liquid container by fixing the fixed flange 34, a detection device 5 is arranged in the second fixed seat 32, an alarm device 6 is fixed on the second fixed seat 32, a junction box 35 is also arranged on the second fixed seat 32, a control device power supply is connected through the junction box 35 and is electrically connected with the self-checking driving device 4, the detection device 5 and the alarm device 6, a first linkage part 21 and a second linkage part 50 are respectively arranged at two sides of the separation plate 33, when the first linkage part 21 moves along with the rising or falling of the floating ball 1, the second interlocking part 50 interlocked and connected thereto is also raised or lowered.

In one preferred embodiment, the first linkage part 21 is a first linkage magnet, the second linkage part 50 is a second linkage magnet, the first linkage magnet and the second linkage magnet attract each other, the partition plate 33 is thin, the first linkage magnet and the second linkage magnet are respectively disposed on both sides of the partition plate 33, and when the first linkage magnet is upward or downward, the second linkage magnet is also upward or downward.

Referring to fig. 1, in the present embodiment, the detecting device 5 is a magnetic switch device, the detecting device 5 includes a triggering mechanism 51 and a switching mechanism 52, the triggering mechanism 51 includes a third connecting rod 53 and a triggering connecting plate 54, the second linkage portion 50 is disposed at a first end of the third connecting rod 53, a second end of the third connecting rod 53 is connected to the triggering connecting plate 54, the third connecting rod 53 is connected to the second fixing base 32 through a second fulcrum structure 55, the triggering connecting plate 54 is provided with a third contact 56 and a fourth contact 57, wherein the third contact 56 is located above the fourth contact 57, the switching mechanism 52 is provided with a first contact 58 and a second contact 59, the first contact 58 is disposed corresponding to the third contact 56, and the second contact 59 is disposed corresponding to the fourth contact 57.

Referring to fig. 2, when the liquid level is in a normal non-superelevation state, the floating ball 1 is in a natural drooping state, the first linkage portion 21 is located above due to the lever action of the first connecting rod 2 on the first fulcrum structure 22, the natural second linkage portion 50 is also located above, the first contact 58 is connected with the third contact 56, and the second contact 59 is disconnected with the fourth contact 57 due to the lever action of the third connecting rod 53 on the second fulcrum structure 55; in this normal state, the alarm device 6 may include a green light 66 indicating a normal state, and the green light 66 is normally on to indicate that the liquid level is not in the ultrahigh state.

Referring to fig. 3, when the liquid level is at an ultrahigh level or simulated ultrahigh state, the floating ball 1 is in a floating state, and the first linkage part 21 is located below and the natural second linkage part 50 is also located below due to the lever action of the first connecting rod 2 on the first fulcrum structure 22, the first contact 58 is disconnected from the third contact 56, and the second contact 59 is connected with the fourth contact 57; in this state, the alarm device 6 may include a first red light 61 and a first speaker 62, the first red light 61 flashes, and the first speaker 62 gives an alarm or voice prompt, such as "the high liquid level limit is reached, please stop the operation immediately, close the inlet valve", and so on.

In this embodiment, the self-test driving device 4 includes a driving mechanism 41 and a second connecting rod 42, the first connecting rod 2 is provided with a connecting block 23 near the second end, the first end of the second connecting rod 42 is connected to the driving mechanism 41, the second end of the second connecting rod 42 is hinged to the connecting block 23, the driving mechanism 41 includes a driver housing 43 and a driver body 44, the driver housing 43 is connected to the outer wall surface of the first fixing seat 31 through a thread, the driver body 44 is disposed inside the driver housing 43, the driver body 44 adopts an electromagnetic induction force to control the second connecting rod 42 to perform a telescopic motion, and controls the driving mechanism 41 through a control device, so as to drive the second connecting rod 42 to perform a telescopic motion.

It should be noted that the actuator body 44, as a most central driving member, can switch between a falling state and a floating state of the float 1, and can control the second connecting rod 42 to ascend and descend by an electromagnet, and can change the state of the float by an eccentric wheel, a cam, a shift fork, or the like.

When self-checking needs to be implemented, the driving mechanism 41 is controlled by the control device, the driver body 44 controls the second connecting rod 42 to extend out, so that the floating ball 1 is in a floating state, the first linkage part 21 is positioned below, the natural second linkage part 50 is also positioned below, and due to the lever action of the second fulcrum structure 55, the first contact 58 is disconnected from the third contact 56, and the second contact 59 is connected with the fourth contact 57; under this normal simulation liquid level is in superelevation fault condition, all spare parts of high liquid level self-checking alarm device are in normal operating condition, and alarm device 6 can include first red lamp 61 and first loudspeaker 62 that represent fault condition, still include the first yellow lamp 63 that represents self-checking condition, and first yellow lamp 63 is bright, and first red lamp 61 twinkles, and first loudspeaker 62 whistles to report to the police or send out pronunciation and remind, like prompting words such as "detect normally".

However, when the self-checking is implemented, there are parts in the high liquid level self-checking alarm device that are in an abnormal working state, and if the first linkage magnet and the second linkage magnet are corroded and failed, the first connecting rod 2 and the third connecting rod 53 cannot rotate, the second contact 59 cannot be connected with the fourth contact 57, or an electronic device in the high liquid level self-checking alarm device fails, and as a final result, the above-mentioned series of acousto-optic alarm information cannot be sent out normally, and the alarm device 6 at this time has the following states:

when the self-checking driving device 4 is normal and the detection device 5 is abnormal, the first yellow lamp 63 is on, the first red lamp 61 and the first loudspeaker 62 do not react, and the difference exists between the first yellow lamp and the first loudspeaker and the acousto-optic alarm information of the normal simulation fault state, so that an operator can recognize the first yellow lamp and the first loudspeaker;

when self-checking drive arrangement 4 is unusual, no matter detection device 5 is normal or not, first red light 61 and first loudspeaker 62 do not all react, and there is the difference with the audible-visual alarm information of normal simulation fault state, and operating personnel can discern.

In the embodiment, the control device is a remote control device and/or a local control device;

the remote control device is respectively in signal connection with the self-checking driving device 4 and the detection device 5, a remote state display device is arranged in the remote control device, and the remote state display device is used for performing sound-light alarm on the state of the high liquid level self-checking alarm device;

the local control device is respectively in signal connection with the self-checking driving device 4 and the detection device 5.

It should be noted that, when the remote control device is used, the remote control device is arranged in a remote central control room, an operator can operate the remote control device in the central control room to control the detection device 5 to switch between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state, and the remote state display device arranged in the remote control device sends out a corresponding sound-light alarm, so that the operator can implement self-checking action on the high liquid level self-checking alarm device without on-site, and know specific conditions through the remote state display device, thereby facilitating remote monitoring of the operator; in contrast, when the device is a local control device, an operator performs a self-checking action on the high liquid level self-checking alarm device on site, and judges whether the high liquid level self-checking alarm device is abnormal or not through an acousto-optic alarm sent by the alarm device 6, so that the operator can conveniently and locally overhaul the device, more specifically, the driving mechanism 41 comprises a local detection button 45, the local detection button 45 is connected to the first end of the second connecting rod 42, the operator directly pushes the second connecting rod 42 by pushing and pulling the local detection button 45 on site, and further drives the first connecting rod 2 and other structures to be linked, the switching of the state of the floating ball 1 is manually simulated, and the device is convenient, reliable and rapid; the remote control device and/or the local control device may be configured as is practical.

Example 2:

referring to fig. 5, this embodiment 2 provides a system applying the high liquid level self-checking alarm device of embodiment 1, including a control module 80, a self-checking driving module 81, and a detection module 82;

the control module 80 comprises a control unit 801 and a first alarm unit 802, the control unit 801 is in signal connection with the self-test driving module 81 and the detection module 82 respectively, the control unit 801 is used for sending a working instruction or a stopping instruction to the self-test driving module 81, the control unit 801 is also used for receiving a normal instruction and a fault instruction of the detection module 82, and the first alarm unit 802 is used for sending corresponding status signals according to the working instruction, the stopping instruction, the normal instruction and the fault instruction;

the self-checking driving module 81 comprises a driving unit 811 and a second alarm unit 812, the driving unit 811 is in signal connection with the control unit 801, the driving unit 811 is used for receiving a working instruction and a stopping instruction sent by the control unit 801 and driving the first connecting rod 2 to rotate around the first fulcrum structure 22, and the second alarm unit 812 is used for sending a self-checking alarm signal when the driving unit 811 is in a working state;

the detection module 82 comprises a detection unit 821 and a third alarm unit 822, the detection unit 821 is in signal connection with the control unit 801, the detection unit 821 is used for sending a normal instruction or a fault instruction to the control unit 801, and the third alarm unit 822 is used for sending out a liquid level ultrahigh alarm when the detection unit 821 sends a liquid level ultrahigh state or a simulated ultrahigh state.

It should be noted that, an operator sends a working instruction or a stop instruction to the self-checking driving module 81 by controlling the control unit 801, the self-checking driving module 81 further drives the first connecting rod 2 to rotate around the first fulcrum structure 22 according to the instruction, and when the system normally works, the second alarm unit 812 sends a self-checking alarm signal; when the second alarm unit does not send out the self-checking light signal, the system is in an abnormal state; and then a distinguishing signal is obtained through the sound-light alarm signal, and the high liquid level self-checking alarm device is judged to be in a fault state.

More specifically, the detecting unit 821 is a magnetic switch, and includes a third contact 56, a fourth contact 57, a first contact 58, a second contact 59, a fifth contact 823, and a sixth contact 824.

In this embodiment, the system further includes a first communication module 91, a second communication module 92, a third communication module 93 and a fourth communication module 94, the control module 80 is in signal connection with the self-test driving module 81 through the first communication module 91 and the second communication module 92, respectively, and the control module 80 is in signal connection with the detection module 82 through the third communication module 93 and the fourth communication module 94, respectively; the first communication module 91, the second communication module 92, the third communication module 93 and the fourth communication module 94 are used as intermediate stations for signal transmission, and a wired or wireless mode can be adopted, so that effective transmission of signals is realized, and the stability and convenience are improved.

In addition, the control unit 801 comprises a PLC control system 803, a manual detection unit 804 and a periodic detection unit 805, the manual detection unit 804 is used for sending a manual detection instruction to the PLC control system 803, the periodic detection unit 805 is used for sending a periodic detection instruction to the PLC control system 803, the PLC control system 803 receives the manual detection instruction and drives the driving unit 811 to operate, and the PLC control system 803 receives the periodic detection instruction and drives the driving unit 811 to operate according to a set periodic detection time.

An operator can select manual detection or periodic detection, when the manual detection is selected, the manual detection unit 804 is triggered, a manual detection instruction is sent to the PLC control system 803, and the PLC control system 803 further drives the driving unit 811 to work, so that the reaction is timely; when the periodic detection is selected, the periodic detection unit 805 is triggered to enable the PLC control system 803 to enter a periodic detection mode, and the PLC control system 803 drives the driving unit 811 to operate according to a set periodic detection time, for example, to perform a self-detection once in a month or half a month, so as to reduce the number of operations by an operator and adjust the set periodic detection time according to an actual fault period.

Example 3:

the embodiment 3 provides a method for applying the high liquid level self-checking alarm system of the embodiment 2, which includes a normal working mode and a self-checking driving mode;

and in a normal working mode, receiving a normal working instruction and/or a fault instruction of the detection module 82, wherein the normal working instruction comprises a liquid level non-ultrahigh state and a liquid level ultrahigh state. When the liquid level in the normal working instruction is not in the ultrahigh state, controlling the first alarm unit 802 to send out an acousto-optic signal that the liquid level is not ultrahigh, namely, the green light 66 is turned on; when the liquid level ultrahigh state in the normal working instruction is received, the first alarm unit 802 and the third alarm unit 822 give out sound and light alarm, and the first alarm unit is controlled to give out sound and light alarm, namely the second red light 67 flickers, and the second horn 68 sounds a horn for alarm or gives out voice alarm; when the fault instruction is received, one or more of the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 sends out corresponding fault sound and light signals;

in the self-checking driving mode, a working instruction and/or a stopping instruction is sent to the self-checking driving module 81, when the working instruction is sent, the working instruction is used for controlling the self-checking driving module 81 to be powered on and work, and is used for controlling the first alarm unit 802 to send out a detection state signal, controlling the second alarm unit 812 to send out a self-checking acousto-optic signal and controlling the third alarm unit 822 to send out a corresponding acousto-optic signal, and if the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 all effectively send out acousto-optic signals, the high liquid level self-checking alarm system is proved to be in a normal state; if any one of the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 can not send out corresponding sound and light signals, the high liquid level self-checking alarm system is proved to be in an abnormal state; when the stop instruction is sent, the stop instruction is used for controlling the self-test driving module 81 to stop working.

In the self-checking driving mode, when a working instruction is sent, if the high liquid level self-checking alarm device is normal, the self-checking driving module 81 is powered on normally to work, and the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 respectively send out corresponding alarm signals; however, when the high liquid level self-checking alarm device is in an abnormal state, any one of the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 cannot give an alarm, so that an operator can judge the state of the high liquid level self-checking alarm device, and the method is simple, rapid, visual and effective.

In this embodiment, a working instruction is sent, and the first alarm unit 802 is controlled to send a detection status signal, where the detection status signal is a blue light 64, and when the self-checking driving module 81 receives the working instruction, if the working instruction can work normally, a self-checking feedback signal is fed back, and the self-checking feedback signal is a second yellow light 65.

More specifically, in the case where a remote control device is provided, that is, the first alarm unit 802 performs an audible and visual alarm in the central control room, including a green light 66, a second red light 67, a blue light 64, a second yellow light 65, and a second horn 68. In the light of the high liquid level self-checking alarm device, the green light 66 indicates that the liquid level is not ultrahigh; red light 67 indicates a liquid level over high; the blue light 64 indicates the self-test command; yellow light 65 indicates that self-check is being performed; the control unit 801 sends an instruction to the self-test driving module 81, and when a signal is transmitted, the blue lamp 64 is turned on; the second red light 67 and the second horn 68 can send out sound and light alarm signals when the high liquid level self-checking alarm device is in a simulated liquid level ultrahigh state; the second yellow light 65 is now on under self-test. When the second horn 68 is not alarmed or other abnormal lights are abnormal, the fault is determined, and more specifically, different fault codes can be displayed through abnormal light combinations displayed by the green light 66, the blue light 64, the second red light 67 and the second yellow light 65, so as to represent different fault nodes or conditions, for example, when the liquid level is not over high, the green light 66 is on, and when the liquid level is over high, the second red light 67 is on in normal operation. When the self-checking mode is achieved, the blue lamp 64 is turned on, and the second red lamp 67 and the second yellow lamp 65 are turned on. In addition, other light combinations displayed by the combination of the green light 66, the blue light 64, the second red light 67 and the second yellow light 65 are faults, for example, the blue light 64, the green light 66, the second red light 67 and the second yellow light 65 are simultaneously lighted, the light display represents that the detection device 5 or the third communication module may have faults, the preliminary judgment of fault nodes is realized, and the fault states of the parts can be accurately positioned by using an equipment fault state and light display table, a first yellow light, a first red light display and equipment fault reverse arrangement table.

The following examples explain in detail: referring to fig. 6 to 10, fig. 6 is a "light display and fault code correspondence table", fig. 7 is an "equipment normal state light display table", fig. 8 is a "fault code and fault node correspondence table", fig. 9 is an "equipment fault state and light display table", and fig. 10 is a "first yellow light, first red light display and equipment fault reverse troubleshooting table".

The following takes the troubleshooting process of the trouble "light display 4" as an example:

the first step is as follows: the fault code is confirmed in the lamp display and fault code corresponding table, such as 0000, the lamp display is not in the working state and is not in detection, the green lamp is not turned on at the moment, so the green lamp is not turned on as a fault, and the lamp display in the fault code column before the detection is that the fault code is 0000. Pressing the "test button" at this time may cause a fault code of "1000" or other fault code;

the second step is that: the normal state of the equipment is searched from the equipment normal state light display table when the equipment is not detected, the equipment which is turned on by the green light is provided with a third communication module and a magnetic switch, but the code shows that the equipment is not in the normal state. The fault codes are listed in a fault code and fault node correspondence table, and the next step of examination is carried out;

the third step: from the equipment fault state and light display table, it is known that the green light is not turned on as a fault 1 when the third communication module is not detected, and the third communication module may be in a disconnection fault;

"failure 1" in which the green light is not on when the "magnetic switch" is not detected may be an open failure of the fifth contact 823 in the detection unit 821 in fig. five.

The fourth step: the third communication module is used for troubleshooting, a first yellow light and a first red light are used for displaying and reverse troubleshooting of equipment faults, when the first red light is turned on and the green light is turned off, the third communication module is normal, otherwise, the third communication module is abnormal;

the 'magnetic switch' fault is checked by using a 'first yellow light, a first red light display and equipment fault reverse troubleshooting table', when the 'first red light' is turned on and the 'green light' is turned off, the 'magnetic switch' is normal, otherwise, the 'magnetic switch' is abnormal;

in addition, the 'fault code when not detected' and the 'fault code when detected' can be switched to and checked with each other, like the fault code '0000', when the detection button is pressed, if the fault code '1111' occurs and the green light is turned on, the 'third communication module' which eliminates the 'fault 1' when the green light is not turned on is in the disconnection fault, and the 'third communication module' is indicated to have no fault.

In the magnetic switch fault and the equipment fault state and light display meter, the green light on-off fault 5 and the fault analysis 'fifth contact' on-off fault in the fault 6 are matched when the magnetic switch is detected.

Thus, when the fault code "1111" is converted from the fault code "0000", the fault is the on fault of the "magnetic switch" and the "fifth contact".

The fault code is analyzed by the control module, and the analysis result is directly reported by voice after programming.

In conclusion, when a fault code state of a certain state occurs, fault points can be found out step by step through a specified fault searching table, so that an operator can accurately locate fault parts remotely, and the maintenance efficiency is improved.

Compared with the prior art, the invention provides the high liquid level self-checking alarm device, the high liquid level self-checking alarm system and the high liquid level self-checking alarm method, solves the problem that the high liquid level alarm device in the prior industry has no self-checking function, and also solves the technical problem that remote judgment and monitoring cannot be realized through a remote detection means.

1. The high liquid level self-checking alarm device provided by the invention operates the control device, further controls the self-checking driving device 4, realizes artificial simulation of ascending and descending of the floating ball 1, enables the detection device 5 to be switched between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state, and if the high liquid level self-checking alarm device is in a normal state, the alarm device 6 can send out a corresponding acousto-optic signal representing the normal state; if the emitted acousto-optic signal is in an abnormal state, the high liquid level self-checking alarm device is in a fault state;

2. the control device in the high liquid level self-checking alarm device is a remote control device and/or a local control device, when the control device is a remote control device, the remote control device is arranged in a remote central control room, an operator can operate the remote control device in the central control room to control the detection device 5 to switch between the liquid level non-ultrahigh state and the simulated liquid level ultrahigh state, and the remote state display device arranged in the remote control device sends out corresponding sound and light alarm, the operator can carry out self-checking work on the high liquid level self-checking alarm device without on site, and know the specific conditions through the remote state display device, so that the remote monitoring of the operator is facilitated; on the contrary, when the device is a local control device, an operator carries out self-checking and observation on the high liquid level self-checking alarm device on site, and judges whether the high liquid level self-checking alarm device is abnormal or not through the acousto-optic alarm sent by the alarm device 6, so that the operator can conveniently overhaul on site in time;

3. according to the high liquid level self-checking alarm system provided by the invention, an operator sends a working instruction or a stopping instruction to the self-checking driving module 81 through controlling the control unit 801, the self-checking driving module 81 further drives the first connecting rod 2 to rotate around the first fulcrum structure 22 according to the instruction, and when the system works normally, the second alarm unit 812 sends a self-checking light signal which is the first yellow light 63; when the second alarm unit 812 does not send out the self-checking light signal, the system is in an abnormal state; then, a distinguishing signal is obtained through the sound-light alarm signal, whether the high liquid level self-checking alarm device is abnormal or not is judged, and judgment can be carried out by referring to an equipment normal state light display meter, an equipment fault state light display meter and the like;

4. in the high liquid level self-checking alarm method provided by the invention, in a self-checking driving mode, when a working instruction is sent, if the high liquid level self-checking alarm device is normal, the self-checking driving module 81 is normally powered on to work, and the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822 respectively send out corresponding light signals, but when the high liquid level self-checking alarm device is in an abnormal state, any one of the first alarm unit 802, the second alarm unit 812 and the third alarm unit 822, namely the light signal, is displayed abnormally and cannot send out corresponding sound and light signals, an operator can further judge the state of the high liquid level self-checking alarm device by referring to an equipment normal state light display meter, an equipment fault state and a light display meter and the like through the light combination of the alarm device 6, and the state of the high liquid level self-checking alarm device can be judged simply, quickly, intuitively and effectively.

Finally, it should be emphasized that the present invention is not limited to the above-mentioned embodiments, but only the preferred embodiments of the invention are described above, and the present invention is not limited thereto, and any modification, equivalent replacement, improvement or deletion of part of the functions, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A high liquid level self-checking alarm device is characterized by comprising a floating ball, a first connecting rod, a fixed seat, a self-checking driving device, a detection device, an alarm device and a control device;

the floating ball is connected to a first end of the first connecting rod, a first linkage part is arranged at a second end of the first connecting rod, and the middle part of the first connecting rod is connected to the fixed seat through a first fulcrum structure;

the self-checking driving device is connected to the first connecting rod, is used for driving the first connecting rod to rotate around the first fulcrum structure, and is connected with the control device;

the detection device is fixed in the fixed seat, the detection device is provided with a second linkage part, the second linkage part is in linkage connection with the first linkage part, the second linkage part controls the detection device to switch between a liquid level non-ultrahigh state and a simulated liquid level ultrahigh state under the driving of the first linkage part, and the detection device is electrically connected with the control device;

the alarm device is electrically connected with the detection device, and the alarm device is electrically connected with the control device.

2. The high liquid level self-checking alarm device according to claim 1, wherein the fixing base comprises a first fixing base, a second fixing base and a partition plate, the partition plate is arranged between the first fixing base and the second fixing base, and the partition plate separates the first fixing base from the second fixing base in the cavity;

the middle part of the first connecting rod is connected to the support of the isolation plate through a first fulcrum structure, the self-checking driving device is connected to the first fixing seat, the detection device is arranged in the second fixing seat cavity, the alarm device is fixed to the second fixing seat, and the first linkage part and the second linkage part are respectively arranged on two sides of the isolation plate.

3. The high liquid level self-checking alarm device according to claim 2, wherein the detection device is a magnetic switch device, the detection device includes a trigger mechanism and a switching mechanism, the trigger mechanism includes a third connecting rod and a trigger connecting plate, the second linkage portion is disposed at a first end of the third connecting rod, a second end of the third connecting rod is connected to the trigger connecting plate, the third connecting rod is connected to the second fixing base through a second fulcrum structure, the trigger connecting plate is provided with a third contact and a fourth contact, the switching mechanism is provided with a first contact and a second contact, the first contact and the third contact are disposed correspondingly, and the second contact and the fourth contact are disposed correspondingly.

4. The high liquid level self-checking alarm device according to claim 3, wherein the self-checking driving device comprises a driving mechanism and a second connecting rod, the first connecting rod is provided with a connecting block near the second end, the first end of the second connecting rod is connected to the driving mechanism, the second end of the second connecting rod is hinged to the connecting block, the driving mechanism is connected to the outer wall surface of the first fixing seat, and the control device controls the driving mechanism to drive the second connecting rod to perform telescopic motion.

5. A high liquid level self-checking alarm device according to claim 4, characterised in that said actuating mechanism comprises a test-in-place button connected to said first end of said second connecting rod.

6. A high liquid level self-checking alarm device according to claim 4, wherein said control device is a remote control device and/or an in-situ control device;

the remote control device is respectively in signal connection with the self-checking driving device and the detection device, a remote state display device is arranged in the remote control device, and the remote state display device is used for performing sound-light alarm on the state of the high liquid level self-checking alarm device;

the local control device is respectively in signal connection with the self-checking driving device and the detection device.

7. A system applying the high liquid level self-checking alarm device as claimed in any one of claims 1 to 6, which is characterized by comprising a control module, a self-checking driving module and a detection module;

the control module comprises an operation unit and a first alarm unit, the operation unit is respectively in signal connection with the self-checking driving module and the detection module, the operation unit is used for sending a working instruction or a stopping instruction to the self-checking driving module, the operation unit is also used for receiving a normal instruction and a fault instruction of the detection module, and the first alarm unit is used for sending corresponding state signals according to the working instruction, the stopping instruction, the normal instruction and the fault instruction;

the self-checking driving module comprises a driving unit and a second alarming unit, the driving unit is in signal connection with the control unit, the driving unit is used for receiving a working instruction and a stopping instruction sent by the control unit and driving the first connecting rod to rotate around the first supporting point structure, and the second alarming unit is used for sending out a self-checking acousto-optic signal when the driving unit is in a working state;

the detection module comprises a detection unit and a third alarm unit, the detection unit is in signal connection with the control unit, the detection unit is used for sending a normal instruction or a fault instruction to the control unit, and the third alarm unit is used for sending a fault acousto-optic signal when the detection unit sends the fault instruction.

8. The high liquid level self-checking alarm system according to claim 7, further comprising a first communication module, a second communication module, a third communication module and a fourth communication module, wherein the control module is in signal connection with the self-checking driving module through the first communication module and the second communication module, respectively, and the control module is in signal connection with the detection module through the third communication module and the fourth communication module, respectively.

9. The high liquid level self-checking alarm system according to claim 7, wherein the control unit comprises a PLC control system, a manual detection unit and a periodic detection unit, the manual detection unit is used for sending a manual detection command to the PLC control system, the periodic detection unit is used for sending a periodic detection command to the PLC control system, the PLC control system receives the manual detection command and drives the driving unit to operate, and the PLC control system receives the periodic detection command and drives the driving unit to operate according to a set periodic detection time.

10. A method of using the high liquid level self-checking alarm system according to any of claims 7 to 9, comprising a normal operation mode and a self-checking drive mode;

in a normal working mode, receiving a normal instruction and/or a fault instruction of the detection module, and controlling the first alarm unit to send a normal state signal when receiving the normal instruction; when the fault instruction is received, controlling the first alarm unit to send out a fault state signal and/or controlling the third alarm unit to send out a fault sound and light signal;

in a self-checking driving mode, a working instruction and/or a stopping instruction is sent to the self-checking driving module, when the working instruction is sent, the working instruction is used for controlling the self-checking driving module to be electrified and operated, and is used for controlling the first alarm unit to send out a detection state signal, controlling the second alarm unit to send out a self-checking acousto-optic signal and controlling the third alarm unit to send out a corresponding acousto-optic signal, and if the first alarm unit, the second alarm unit and the third alarm unit all effectively send out acousto-optic signals, the high liquid level self-checking alarm system is proved to be in a normal state; if any one of the first alarm unit, the second alarm unit and the third alarm unit can not send out corresponding sound and light signals, the high liquid level self-checking alarm system is proved to be in an abnormal state; and when the stop instruction is sent, the stop instruction is used for controlling the self-test driving module to stop working.

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