Alarm device applied to density relay valve and use method

Abstract

The invention discloses an alarm device applied to a density relay valve and a using method, and relates to the field of power distribution equipment, the alarm device applied to the density relay valve comprises a knob, a linkage assembly and a control assembly, the linkage assembly comprises a connecting rod fixedly connected with the rotary knob and a switch piece controlled by the connecting rod, power-on and power-off of a power source are achieved through the arrangement of the switch piece, the control assembly comprises the power source controlled by the switch piece and a warning piece, warning information can be sent to workers through the warning piece, and the workers are continuously prompted. A worker can know that the relay valve needs to be closed after overhauling is finished, forgetting is avoided, the worker rotates the relay valve to drive the rotary knob to rotate, the power switch is triggered, and the warning piece continuously gives out early warning prompts.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to an alarm device applied to a density relay valve and a use method thereof. Background Art

[0002] SF 6 Density relay as a reflection of SF 6 Gas pressure equipment is widely used in various equipment in substations and has alarm and locking functions. According to the operation and maintenance regulations of the Southern Power Grid, SF 6 Density relays are usually calibrated once every 6 years. Before calibration, the SF lock must be closed. 6 Density relay valve, after the calibration is completed, it will be restored. However, this operation is manual, and it is inevitable that the SF 6 Density relay valve is not open, which will cause SF 6 The density relay is isolated from the equipment gas chamber, causing SF 6 The pressure reading of the density relay meter cannot correctly feedback the pressure value of the equipment chamber: If the residual gas in the meter pressure leaks, the meter pressure will gradually decrease, which will trigger the SF 6 Low pressure alarm or lockout, SF 6 Density relay lockout will cause the circuit breaker control circuit to be disconnected, and it will not work normally when a fault occurs, causing an over-trip. 6 Density relay cannot reflect this condition normally, which will cause the circuit breaker to operate when the fault occurs, but SF 6 The gas density cannot completely extinguish the arc, causing damage such as equipment explosion. In addition, under the requirement of safe distance when some equipment is energized, the staff handles the SF 6 Density relay alarms require interval power outages, which will increase the duration of the outage and affect grid stability.

[0003] In summary, the staff completed SF 6 Density relay does not open SF after calibration 6 Density relay valve causes SF 6 The problem of density relay misoperation needs to be solved urgently. Summary of the invention

[0004] In view of the above problems existing in the alarm device applied to the density relay valve, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to remind the staff to close the valve.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an alarm device applied to a density relay valve, comprising a knob, which is nested with the relay valve; a linkage assembly, comprising a connecting rod fixedly connected to the knob and a switch controlled by the connecting rod; a control assembly, comprising a power supply and an alarm controlled by the switch; and the knob is driven to rotate by twisting the relay valve.

[0007] As a preferred solution of the alarm device applied to the density relay valve of the present invention, the knob is provided with a clamping edge, and the relay valve can be driven to rotate by the clamping edge.

[0008] As a preferred solution of the alarm device applied to the density relay valve described in the present invention, the switch element includes a rotating rod movably connected to the end of the connecting rod, and the rotating rod rotates in the outer shell; the switch element also includes a spring connected to one end of the rotating rod, and a power-on button corresponding to the rotation position of the other end of the rotating rod.

[0009] As a preferred solution of the alarm device applied to the density relay valve of the present invention, wherein: the power-on button is electrically connected to the power supply; the power-on button is pressed and the power supply is in the power-on state, and the power-on button is not pressed and the power supply is in the power-off state.

[0010] As a preferred solution of the alarm device applied to the density relay valve of the present invention, the alarm component includes a signal unit electrically connected to the power supply and a self-test module; the signal unit sends a check instruction to the self-test module.

[0011] As a preferred solution of the alarm device applied to the density relay valve described in the present invention, the alarm component also includes a warning light and a buzzer electrically connected to the power supply; after the inspection instruction is completed, the signal unit sends a working instruction to the warning light and the buzzer.

[0012] As a preferred solution of the alarm device applied to the density relay valve of the present invention, wherein: the rebound force of the spring is smaller than the force required to rotate the knob; a slide groove is provided on the housing, and the connecting rod slides along the slide groove.

[0013] Another object of the present invention is to provide a method for using an alarm device applied to a density relay valve: putting a knob on the relay valve; opening the relay valve; and a warning light and a buzzer begin to emit an audible and visual alarm.

[0014] As a preferred solution of the alarm device applied to the density relay valve of the present invention, the relay valve is rotated clockwise to open the relay valve, and the warning light and the buzzer continuously issue warnings.

[0015] As a preferred solution of the alarm device applied to the density relay valve of the present invention, the relay valve is rotated counterclockwise to close the relay valve, and the warning light and the buzzer stop issuing warnings.

[0016] The beneficial effects of the present invention are:

[0017] 1. The overall device has a simple structure, and the production and operation costs are low;

[0018] 2. The reminder of sound and light coordination can ensure that the staff can receive the alarm signal at the work site, achieving a good reminder effect;

[0019] 3. At the same time, the self-check function of the device improves its operating stability and reliability;

[0020] 4. Alarms of appropriate frequency can effectively remind staff without causing negative emotions among them. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 This is a scene diagram of the alarm device applied to the density relay valve.

[0023] Figure 2 This is a structural diagram of the linkage components of the alarm device applied to the density relay valve.

[0024] Figure 3 The present invention is an alarm flow chart of an alarm device applied to a density relay valve. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0028] Example 1

[0029] Reference Figure 1 , which is the first embodiment of the present invention, and this embodiment provides an alarm device applied to a density relay valve. The alarm device applied to a density relay valve includes a knob 100, a linkage assembly 200 and a control assembly 300. By nesting the knob 100 and the relay valve together, when the relay valve is rotated, the knob 100 can be driven to rotate synchronously, and then the linkage assembly 200 is driven to move, so that the control assembly 300 continuously issues warnings to the staff.

[0030] Specifically, the knob 100 is nested with the relay valve.

[0031] Preferably, the linkage assembly 200 includes a connecting rod 201 fixedly connected to the knob 100 and a switch member 202 controlled by the connecting rod 201 , and the power supply 301 is turned on and off by setting the switch member 202 .

[0032] Preferably, the control assembly 300 includes a power supply 301 controlled by the switch element 202 and an alarm element 302, through which an alarm message can be sent to the staff, and the staff is constantly reminded so that the staff can know that they need to close the relay valve after the maintenance is completed, and will not forget it;

[0033] The knob 100 is driven to rotate by twisting the relay valve.

[0034] When in use, the staff rotates the relay valve to drive the knob 100 to rotate, triggering the power supply 301 switch, so that the warning element 302 continuously issues early warning prompts.

[0035] Example 2

[0036] Reference Figure 2 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0037] Specifically, the knob 100 is provided with a clamping edge 101 , which can drive the relay valve to rotate. The clamping edge 101 is mainly provided to fit the relay valve so that the valve can rotate against the knob 100 .

[0038] Preferably, the switch member 202 comprises a rotating rod 202a movably connected to the end of the connecting rod 201, and the rotating rod 202a rotates in the housing A;

[0039] The switch member 202 also includes a spring 202b connected to one end of the rotating rod 202a, and a power-on button 202c corresponding to the rotation position of the other end of the rotating rod 202a. When one end of the rotating rod 202a is pulled by the connecting rod 201, the other end will press the power-on button 202c, so that the power supply 301 is turned on.

[0040] Preferably, the power button 202c is electrically connected to the power source 301;

[0041] The power button 202c is pressed and the power supply 301 is powered on. The power button 202c is not pressed and the power supply 301 is powered off. The not pressed state refers to the state where the knob 100 is not rotated.

[0042] Preferably, the warning element 302 includes a signal unit 302a electrically connected to the power source 301 and a self-checking module 302b;

[0043] The signal unit 302a sends a check instruction to the self-check module 302b.

[0044] Preferably, the warning element 302 further includes a warning light 302c and a buzzer 302d electrically connected to the power source 301;

[0045] After the inspection instruction is completed, the signal unit 302a sends a work instruction to the warning light 302c and the buzzer 302d.

[0046] Preferably, the rebound force of the spring 202b is less than the force required to turn the knob 100;

[0047] The housing A is provided with a slide groove H, along which the connecting rod 201 slides.

[0048] When in use, the staff first puts the knob 100 on the relay valve so that when the valve is rotated, it can press against the edge 101, and then the knob 100 can be rotated while the valve is rotated. It is worth noting that when the knob 100 is rotated, the housing A is fixed manually, so when the knob 100 is rotated, it will slide with the connecting rod 201 inside the slide groove H, and with the movement of the connecting rod 201, it will pull the rotating rod 202a to rotate, and then one end of the rotating rod 202a will press the power button 202c, so that the power supply 301 is energized, and the alarm component 302 sends a command signal.

[0049] Example 3

[0050] Reference Figure 3 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0051] Specifically, the knob 100 is put on the relay valve;

[0052] Open the relay valve;

[0053] The warning light 302c and the buzzer 302d begin to emit an audible and visual alarm.

[0054] Preferably, the relay valve is turned clockwise to open the relay valve, and the warning light 302c and the buzzer 302d continuously issue warnings.

[0055] Preferably, the relay valve is turned counterclockwise to close the relay valve, and the warning light 302c and the buzzer 302d stop issuing warnings.

[0056] When in use, the warning light 302c flashes 5 times quickly and the buzzer 302d beeps 5 times to verify the integrity of the device with the self-check module 302b. After the alarm is activated, the warning light 302c flashes 3 times slowly every 1 minute, accompanied by the buzzer 302d beeps 3 times until the staff closes the relay valve.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An alarm device applied to a density relay valve, characterized in that: include, A knob (100), wherein the knob (100) is nested with the relay valve; A linkage assembly (200) comprising a connecting rod (201) fixedly connected to the knob (100) and a switch member (202) controlled by the connecting rod (201); A control component (300) comprising a power source (301) and an alarm component (302) controlled by the switch component (202); The knob (100) is driven to rotate by twisting the relay valve.

2. The alarm device for density relay valve according to claim 1, characterized in that: The knob (100) is provided with a clamping edge (101), and the relay valve can be driven to rotate via the clamping edge (101).

3. The alarm device for density relay valve according to claim 2, characterized in that: The switch member (202) comprises a rotating rod (202a) movably connected to the end of the connecting rod (201), and the rotating rod (202a) rotates in the housing (A); The switch member (202) further comprises a spring (202b) connected to one end of the rotating rod (202a), and a power-on button (202c) corresponding to the rotation position of the other end of the rotating rod (202a).

4. The alarm device for density relay valve according to claim 3, characterized in that: The power-on button (202c) is electrically connected to the power source (301); When the power button (202c) is pressed, the power source (301) is in a power-on state, and when the power button (202c) is not pressed, the power source (301) is in a power-off state.

5. The alarm device for density relay valve according to claim 4, characterized in that: The warning element (302) comprises a signal unit (302a) electrically connected to the power source (301) and a self-checking module (302b); The signal unit (302a) sends a check instruction to the self-check module (302b).

6. The alarm device for density relay valve according to claim 5, characterized in that: The warning element (302) further comprises a warning light (302c) and a buzzer (302d) electrically connected to the power source (301); After the inspection instruction is completed, the signal unit (302a) sends a work instruction to the warning light (302c) and the buzzer (302d).

7. The alarm device for density relay valve according to claim 6, characterized in that: The rebound force of the spring (202b) is smaller than the force required to rotate the knob (100); The housing (A) is provided with a slide groove (H), and the connecting rod (201) slides along the slide groove (H).

8. A method of use, applied to the alarm device applied to a density relay valve as claimed in claims 1 to 7, the method of use comprising: Put the knob (100) onto the relay valve; opening the relay valve; The warning light (302c) and the buzzer (302d) begin to emit an audible and visual alarm.

9. The method of use according to claim 8, characterized in that: The relay valve is turned clockwise to open the relay valve, and the warning light (302c) and the buzzer (302d) continuously issue warnings.

10. The method of use according to claim 9, characterized in that: The relay valve is turned counterclockwise to close the relay valve, and the warning light (302c) and the buzzer (302d) stop issuing warnings.

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