CN113488880B

CN113488880B - Alarm system for power transmission

Info

Publication number: CN113488880B
Application number: CN202110477447.8A
Authority: CN
Inventors: 王春风; 李树丽; 古佳明; 张誉文; 杨麒
Original assignee: State Grid Henan Electric Power Company Yanling County Power Supply Co
Current assignee: State Grid Henan Electric Power Company Yanling County Power Supply Co
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-06-17
Anticipated expiration: 2041-04-30
Also published as: CN113488880A

Abstract

The invention discloses an alarm system for electric power transmission, wherein a base is provided with a box body, electric power equipment is arranged in the box body, a rotating motor is arranged on the top wall in the box body, an output shaft of the rotating motor is connected with a rotating shaft, the bottom end of the rotating shaft is provided with a horizontal connecting rod, one end of the connecting rod, which is far away from the rotating shaft, is provided with a lifting device, the output end of the lifting device is provided with a monitoring and early warning device, the side wall in the box body is provided with a cooling fan, the outer side wall of the box body is provided with a vent hole, the outer side of the vent hole is provided with a plugging block, the outer end of the plugging block is connected with a rotating plate through a compression spring, the outer side of the rotating plate is connected with a driving motor through a belt and a belt pulley, the top of the box body is also provided with a master controller and an alarm lamp, and the master controller is electrically connected with the rotating motor, the lifting device, the monitoring and early warning device, the cooling fan, the driving motor and the alarm lamp; the invention has the advantages of real-time monitoring, timely early warning, heat dissipation and cooling and prolonging the service life of equipment.

Description

Alarm system for power transmission

Technical Field

The invention belongs to the technical field of power transmission, and particularly relates to an alarm system for power transmission.

Background

In recent years, with the rapid development of the power industry, a power system develops towards the direction of high voltage and large capacitance, the relationship between electric energy and national economy and the production and life of people is dense, and the loss caused by line heating is often caused by the transmission of current, so that the electric energy is firstly transmitted to a boosting transformer substation from a power plant and the like during the transmission, the voltage is increased through transformation, the current is reduced to reduce the heating loss, then the electric energy is transmitted through a high-voltage transmission line, then the voltage is reduced to the voltage required by a target electric appliance through a voltage reduction transformer substation, and then the electric energy is transmitted to a user through a low-voltage distribution line.

Wherein, generate electricity at electric power system, the transmission of electricity, distribution and electric energy conversion in-process, can need use high-low voltage switch cabinet usually, open and shut, control and protection consumer, mainly be provided with the circuit breaker in the cubical switchboard, isolator, load switch, operating device, mutual-inductor and various protection device, it can produce the heat at the during operation, make the internal portion temperature of cabinet rise, current cubical switchboard can not in time effectively dispel the heat, and also can not carry out high temperature warning, lead to the staff can't in time discover that equipment is in the condition of high temperature, also can't in time take the cooling measure, lead to the unable normal work of equipment, influence the life of equipment.

Therefore, in order to solve the above problems, it is necessary to develop an alarm system for power transmission.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an alarm system for power transmission, which can realize real-time monitoring, timely early warning, effective heat dissipation and cooling and prolong the service life of equipment.

The purpose of the invention is realized as follows: an alarm system for electric power transmission comprises a base, a box body, electric power equipment, a rotating motor, a rotating shaft, a connecting rod, a lifting device, a monitoring and early warning device, a cooling fan, a vent hole, a plugging block, a compression spring, a rotating plate, a driving motor, an alarm lamp and a general controller, wherein the box body is arranged on the base, the electric power equipment is arranged in the box body, the rotating motor is arranged on the top wall in the box body, the output shaft of the rotating motor is connected with the rotating shaft, the bottom end of the rotating shaft is provided with the horizontal connecting rod, the lifting device is arranged at one end of the connecting rod far away from the rotating shaft, the monitoring and early warning device is arranged at the output end of the lifting device, the cooling fan is arranged on the side wall in the box body, the vent hole is arranged on the outer side wall of the box body, the plugging block is arranged on the outer side of the vent hole, the outer end of the plugging block is connected with the rotating plate through the compression spring, the outer side of the rotating plate is connected with a driving motor through a belt and a belt pulley, the top of the box body is also provided with a master controller and an alarm lamp, and the master controller is electrically connected with the rotating motor, the lifting device, the monitoring and early warning device, the cooling fan, the driving motor and the alarm lamp in a control mode; wherein, the monitoring and early warning device comprises a detection block, a cavity, a movable plate, an extension spring, a contact electrode, a first push block, a second push block, a bimetallic strip and a sub-controller, the detection block is internally provided with the cavity, the cavity is close to one side opening inside the box body, the movable plate is arranged inside the cavity, the bottom end of the movable plate is connected with the bottom end of the cavity through the extension spring, the contact electrode matched with the movable plate and the top wall of the cavity are arranged on the movable plate and the top wall of the cavity, the outer side of the bottom end of the movable plate is provided with the inverted trapezoidal first push block, the inclined plane of the first push block close to the outer side of the cavity is connected with the upright trapezoidal second push block through a chute sliding block, the bottom end of the second push block is horizontally connected with the bottom end of the cavity through a chute sliding block, the opening of the cavity is positioned on the outer side of the second push block and is provided with the bimetallic strip, and the top end of the detection block is also provided with the sub-controller, the sub-controllers are electrically connected with the contact electrodes and connected with the main controller.

The lifting device adopts an electric telescopic rod or a hydraulic cylinder.

The cooling fan sets up to a plurality of and evenly distributed around power equipment on the box inside wall, the cooling fan upper shield is equipped with the protection casing.

One end of the plugging block close to the vent hole is of an arc-shaped or hemispherical structure.

The one end that the ventilation hole was kept away from to the plugging block stretches into the setting inside the sleeve of rotor plate inboard to slidable connection sleeve inside wall, compression spring sets up inside the sleeve, the plugging block is connected to compression spring one end, and the rotor plate is connected to the other end.

The cavity bottom is provided with the guide bar, the guide bar top stretches into in the guide cylinder and sliding connection guide cylinder inside wall from top to bottom, guide cylinder top fixed connection movable plate bottom, extension spring sets up inside the guide cylinder, the guide bar top is connected to extension spring one end, and the movable plate bottom is connected to the other end.

The first pushing block and the second pushing block are of right-angled trapezoid block structures, or the first pushing block and the second pushing block are of right-angled triangle block structures.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

(1) the monitoring and early warning device and the alarm lamp are arranged, so that the temperature in the box body can be monitored in real time, when the temperature in the box body is too high, the alarm lamp can give an alarm in time, and meanwhile, through the common arrangement of the rotating motor and the lifting device, each position in the box body can be detected, so that the situation that local heating is generated, hidden danger cannot be eliminated in time is avoided, the monitoring is more comprehensive and thorough, and the use is safer;

(2) the bimetallic strip is arranged in the monitoring and early warning device, when the power equipment generates heat to cause the temperature of part or all of the inside of the box body to rise, the bimetallic strip is heated to deform to push the second push block to slide towards the inner side of the cavity, the second push block slides towards the inner side of the cavity and also slides towards the position below the first push block, the first push block and the second push block slide relatively through the second push block and the sliding chute sliding block on the inclined surface of the first push block, the second push block pushes the first push block to move upwards, the movable plate moves upwards, the extension spring is stretched, the top end of the movable plate is in contact connection with the contact electrode on the top wall of the cavity, the sub-controller sends a signal to the main controller after detecting a contact electrode connection signal, namely, the main controller controls the alarm lamp to be turned on to send an early warning signal, and the corresponding heat dissipation device can be started simultaneously, radiating the interior of the box body;

(3) the plurality of cooling fans which are uniformly distributed around the power equipment are arranged on the inner side wall of the box body, so that one or more cooling fans can be independently started to perform local heat dissipation pertinently, and the whole cooling fans can be completely started to perform overall heat dissipation in the box body, so that the pertinence is strong, the cooling effect is good, and the resources can be saved;

(4) through being provided with the ventilation hole on the box lateral wall to be provided with adjustable shutoff piece in the ventilation hole, and the accessible rotor plate drives the shutoff piece and rotates, through compression spring's elastic action, realize driving the shutoff piece and insert and extract from the ventilation hole in to the ventilation hole, thereby realize opening and closing in ventilation hole, when guaranteeing the radiating effect, play effects such as dustproof prevent wind and rain, use more reliable and more stable.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of part B of fig. 1.

In the figure: 1. the device comprises a base 2, a box 3, electric equipment 4, a rotating motor 5, a rotating shaft 6, a connecting rod 7, a lifting device 8, a monitoring and early warning device 9, a cooling fan 10, a vent hole 11, a blocking block 12, a compression spring 13, a rotating plate 14, a driving motor 15, an alarm lamp 16, a master controller 17, a sleeve 18, a guide rod 19, a guide cylinder 801, a detection block 802, a cavity 803, a moving plate 804, a tension spring 805, a contact electrode 806, a first push block 807, a second push block 808, a bimetallic strip 809 and a sub-controller.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

As shown in fig. 1, 2 and 3, the alarm system for power transmission comprises a base 1, a box 2, a power device 3, a rotating motor 4, a rotating shaft 5, a connecting rod 6, a lifting device 7, a monitoring and early warning device 8, a cooling fan 9, a vent hole 10, a plugging block 11, a compression spring 12, a rotating plate 13, a driving motor 14, an alarm lamp 15 and a master controller 16.

Wherein, a box body 2 is arranged on the base 1, a power device 3 is arranged in the box body 2, a rotating motor 4 is arranged on the top wall in the box body 2, an output shaft of the rotating motor 4 is connected with a rotating shaft 5, a horizontal connecting rod 6 is arranged at the bottom end of the rotating shaft 5, a lifting device 7 is arranged at one end, far away from the rotating shaft 5, of the connecting rod 6, the lifting device 7 adopts an electric telescopic rod or a hydraulic cylinder, a monitoring and early warning device 8 is arranged at the output end of the lifting device 7, a cooling fan 9 is arranged on the side wall in the box body 2, the cooling fan 9 is arranged on the inner side wall of the box body 2 in a plurality and is uniformly distributed around the power device 3, a protective cover is arranged on the upper cover of the cooling fan 9, a vent hole 10 is arranged on the outer side wall of the box body 2, a blocking block 11 is arranged outside the vent hole 10, and one end, close to the vent hole 10, of the blocking block 11 is arranged in an arc or hemisphere structure, be convenient for the plugging block 11 to the ventilation hole 10 in insert and follow the ventilation hole 10 in extract, the arcwall face of the 11 front ends of shutoff port is connected with the port department contact in ventilation hole 10, the 11 outer ends of plugging block are passed through compression spring 12 and are connected rotor plate 13, and is preferred, the one end that ventilation hole 10 was kept away from to plugging block 11 stretches into and sets up inside the sleeve 17 of rotor plate 13 inboard to but sliding connection sleeve 17 inside wall, compression spring 12 sets up inside sleeve 17, the plugging block 11 is connected to compression spring 12 one end, and rotor plate 13 is connected to the other end, through the setting of sleeve 17, can carry out spacingly to the motion of plugging block 11, uses safe and reliable more, the rotor plate 13 outside is through belt and belt pulley connection driving motor 14, box 2 top still is provided with master controller 16 and alarm lamp 15, master controller 16 electric control connects rotating electrical machinery 4, Elevating gear 7, monitoring early warning device 8, cooling fan 9, driving motor 14 and alarm lamp 15.

The monitoring and early warning device 8 comprises a detection block 801, a cavity 802, a moving plate 803, an extension spring 804, a contact electrode 805, a first push block 806, a second push block 807, a bimetallic strip 808 and a branch controller 809, wherein the detection block 801 is internally provided with the cavity 802, one side of the cavity 802 close to the interior of the box body 2 is opened, the moving plate 803 is arranged at the inner side of the cavity 802, the bottom end of the moving plate 803 is connected with the bottom end of the cavity 802 through the extension spring 804, the bottom end of the cavity 802 is provided with a guide rod 18, the top end of the guide rod 18 extends into the guide cylinder 19 and is connected with the inner side wall of the guide cylinder 19 in a vertical sliding manner, the top end of the guide cylinder 19 is fixedly connected with the bottom end of the moving plate 803, the extension spring 804 is arranged in the guide cylinder 19, one end of the extension spring 804 is connected with the top end of the guide rod 18, the other end of the moving plate 803 is connected, and the guide rod 18 and the guide cylinder 19 are arranged, the up-and-down movement of the moving plate 803 can be limited, the use is safer and more reliable, the moving plate 803 and the top wall of the cavity 802 are provided with adaptive contact electrodes 805, an inverted trapezoidal first pushing block 806 is arranged on the outer side of the bottom end of the moving plate 803, the inclined surface of the first push block 806 close to the outer side of the cavity 802 is connected with a second push block 807 which is upright and is in a trapezoid shape through a sliding chute and a sliding block, the first push block 806 and the second push block 807 are in a right-angled trapezoid block structure, or the first pushing block 806 and the second pushing block 807 are rectangular triangle block structures, the bottom end of the second pushing block 807 can be horizontally and slidably connected with the bottom end of the cavity 802 through a sliding chute sliding block, a bimetallic strip 808 is arranged at the opening of the cavity 802 and positioned outside the second push block 807, the top end of the detection block 801 is further provided with a sub-controller 809, and the sub-controller 809 is electrically connected with the contact electrode 805 and is connected with the main controller 16.

The rotating motor 4, the lifting device 7, the cooling fan 9, the driving motor 14, the alarm lamp 15, the master controller 16, the contact electrode 805, the sub-controller 809 and their specific circuit connection structures belong to the prior art, and belong to the common general knowledge for those skilled in the art.

When the invention is implemented, the general controller 16 controls the rotating motor 4 and the lifting device 7 to act together, and then drives the monitoring and early warning device 8 to move and monitor around the power equipment 3 in the box 2 at regular time, when the local temperature in the box 2 or in a certain position in the box 2 is too high, the bimetallic strip 808 is heated and deformed, the second push block 807 is pushed to slide towards the inner side of the cavity 802, the second push block 807 slides towards the inner side of the cavity 802 and at the position below the first push block 806, the first push block 806 and the second push block slide relatively through the second push block 807 and the sliding chute slider on the inclined surface of the first push block 806, the second push block 807 pushes the first push block 806 to move upwards, the moving plate 803 moves upwards, the extension spring 804 is stretched, the top end of the 803 is in contact connection with the contact electrode 805 on the top wall of the cavity 802, and the sub-controller 809 detects a contact electrode 805 connection signal, sending a signal to a master controller 16, namely controlling an alarm lamp 15 to light through the master controller 16, sending an early warning signal, and simultaneously starting a corresponding cooling fan 9 to cool the interior of the box body 2, and simultaneously starting a driving motor 14, wherein the driving motor 14 drives a rotating plate 13 to rotate, the rotating plate 13 drives a compression spring 12 and a plugging block 11 to rotate, it should be noted that, in an initial state, an arc section or a hemispherical end at the front end of the plugging block 11 is inserted into a vent hole 10, the compression spring 12 is in a natural state, when the rotating plate 13 drives the compression spring 12 and the plugging block 11 to rotate, the plugging block 11 gives a pressure to the compression spring 12, the compression spring 12 is compressed, the plugging block 11 is pulled out from the vent hole 10, and at the moment, the vent hole 10 is opened to dissipate heat; after the heat dissipation is finished, when the temperature in the box 2 recovers, the bimetallic strip 808 recovers, the thrust of the bimetallic strip 808 to the second push block 807 disappears, under the action of the extension spring 804, the moving plate 803 resets, the contact electrode 805 is disconnected, the first push block 806 pushes the second push block 807 to reset, the sub-controller 809 transmits a disconnection signal of the contact electrode 805 to the main controller 16, the main controller 16 closes the cooling fan 9, the driving motor 14 is started again to rotate, the rotating plate 13 drives the compression spring 12 and the blocking block 11 to rotate, the blocking block 11 rotates and then is inserted into the ventilation hole 10, the compression spring 12 resets, the ventilation hole 10 is closed, the dustproof and windproof effects can be achieved, and the use is stable and reliable.

Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and all the modifications or equivalent substitutions should be covered in the claims of the present invention.

Claims

1. An alarm system for power transmission, characterized in that: comprises a base (1), a box body (2), electric equipment (3), a rotating motor (4), a rotating shaft (5), a connecting rod (6), a lifting device (7), a monitoring and early warning device (8), a cooling fan (9), a ventilation hole (10), a plugging block (11), a compression spring (12), a rotating plate (13), a driving motor (14), an alarm lamp (15) and a master controller (16), wherein the box body (2) is arranged on the base (1), the electric equipment (3) is arranged in the box body (2), the rotating motor (4) is arranged on the top wall in the box body (2), an output shaft of the rotating motor (4) is connected with the rotating shaft (5), the horizontal connecting rod (6) is arranged at the bottom end of the rotating shaft (5), and the lifting device (7) is arranged at one end, far away from the rotating shaft (5), of the connecting rod (6), the monitoring and early warning device is characterized in that a monitoring and early warning device (8) is arranged at the output end of the lifting device (7), a cooling fan (9) is arranged on the inner side wall of the box body (2), a vent hole (10) is formed in the outer side wall of the box body (2), a blocking block (11) is arranged on the outer side of the vent hole (10), the outer end of the blocking block (11) is connected with a rotating plate (13) through a compression spring (12), the outer side of the rotating plate (13) is connected with a driving motor (14) through a belt and a belt pulley, a master controller (16) and an alarm lamp (15) are further arranged at the top of the box body (2), and the master controller (16) is electrically connected with the rotating motor (4), the lifting device (7), the monitoring and early warning device (8), the cooling fan (9), the driving motor (14) and the alarm lamp (15); wherein, the monitoring and early warning device (8) comprises a detection block (801), a cavity (802), a movable plate (803), an extension spring (804), a contact electrode (805), a first push block (806), a second push block (807), a bimetallic strip (808) and a sub-controller (809), the cavity (802) is arranged in the detection block (801), the cavity (802) is close to one side opening in the box body (2), the movable plate (803) is arranged at the inner side of the cavity (802), the bottom end of the movable plate (803) is connected with the bottom end of the cavity (802) through the extension spring (804), the contact electrodes (805) which are matched with each other are arranged on the top walls of the movable plate (803) and the cavity (802), the inverted ladder-shaped first push block (806) is arranged at the outer side of the bottom end of the movable plate (803), the inclined surface of the first push block (806) close to the outer side of the cavity (802) is connected with the upright second push block (807) through a sliding chute sliding block, the bottom end of the second push block (807) is connected with the bottom end of the cavity (802) in a horizontally sliding mode through a sliding groove sliding block, a bimetallic strip (808) is arranged at the position, located on the outer side of the second push block (807), of an opening of the cavity (802), a sub-controller (809) is further arranged at the top end of the detection block (801), and the sub-controller (809) is electrically connected with the contact electrode (805) and is connected with the main controller (16).

2. The alarm system for power transmission according to claim 1, wherein: the lifting device (7) adopts an electric telescopic rod or a hydraulic cylinder.

3. The alarm system for power transmission according to claim 1, wherein: cooling fan (9) set up to a plurality of and evenly distributed around power equipment (3) on box (2) inside wall, cooling fan (9) upper shield is equipped with the protection casing.

4. The alarm system for power transmission according to claim 1, wherein: one end of the plugging block (11) close to the vent hole (10) is of an arc or hemispherical structure.

5. The alarm system for power transmission according to claim 1, wherein: one end of the plugging block (11) far away from the ventilation hole (10) extends into a sleeve (17) arranged on the inner side of the rotating plate (13) and is connected with the inner side wall of the sleeve (17) in a sliding manner, the compression spring (12) is arranged inside the sleeve (17), one end of the compression spring (12) is connected with the plugging block (11), and the other end of the compression spring is connected with the rotating plate (13).

6. The alarm system for power transmission according to claim 1, wherein: the cavity (802) bottom is provided with guide bar (18), but guide bar (18) top stretches into guide cylinder (19) in and sliding connection guide cylinder (19) inside wall from top to bottom, guide cylinder (19) top fixed connection movable plate (803) bottom, extension spring (804) set up inside guide cylinder (19), guide bar (18) top is connected to extension spring (804) one end, and movable plate (803) bottom is connected to the other end.

7. The alarm system for power transmission according to claim 1, wherein: the first pushing block (806) and the second pushing block (807) are in right-angled trapezoid block structures, or the first pushing block (806) and the second pushing block (807) are in right-angled triangle block structures.