CN113270803B - Transformer cabinet for electric power transmission and transformation - Google Patents

Abstract

The invention discloses a power transformation cabinet for power and electric transmission and transformation, which relates to the technical field of power and transformation cabinets and comprises a cabinet body and a division plate arranged at the lower position of the cabinet body, wherein the cabinet body is divided into an upper part and a lower part by the division plate, and an upper door plate and a lower door plate which are arranged in a matching way with the upper part and the lower part of the cabinet body are hinged at the front side of the cabinet body; the exhaust device is arranged below the partition plate, the partition plate is provided with a timely plugging device, and a plurality of groups of guide rails are arranged above the partition plate at intervals. The invention is convenient for overhauling the electrical equipment arranged on the mounting frame by overhauling staff, controls the extension of the telescopic part below the corresponding mounting frame when overhauling the corresponding electrical equipment, pushes out the mounting frame, is more convenient for use, and can form relative sealing of the upper part of the cabinet body by the partition plate and the densely distributed blocking conical head, thereby reducing the probability of influencing the normal operation of the electrical equipment in the cabinet body due to the invasion of foreign matters and the like into the cabinet body.

Description

Transformer cabinet for electric power transmission and transformation

technical field

The invention relates to the technical field of power transmission and transformation cabinets, in particular to a power transformation cabinet for electric power transmission and transformation.

Background technique

Power transmission and transformation is like a large network covering the whole country. A substation is a node in the network. Connecting each node is the transmission line, and the transmission line can be divided into: steel tower, steel pipe pole, concrete pole, power cable and other forms. The comparison in the form of iron towers can be seen everywhere on both sides of the expressway. With the development of science and technology and the strength of the country, high-cost power cables are slowly being used. This practice of turning from the sky to the ground reflects the progress and civilization of society. The speed of economic development of a country is closely related to the development of power grid transmission and transformation. If the mountains and rivers are the flesh and blood of the country, then the power grid is the nervous system of the country.

Generally, 35kV-1000kV is called power transmission and transformation in the power industry, and 10kV and below is called distribution network. Power transmission and transformation can be simply divided into two main parts: 1. Transmission lines; 2. Substations. Generally, the voltage sent from the power plant is relatively low. If it is not boosted, then according to the ratio of AC UI, the current on the line will be relatively large. Since the heating of the line is related to the resistance and current, the greater the current, the greater the current generated by the same wire. The heat is also relatively large, so most of the electricity from the power plant will be lost on the wires. In addition, the higher the heat of the wire, the greater the harm to the wire. In order to avoid the above adverse effects. The measure is to increase the voltage and reduce the current. So a booster station is needed. Generally, the first stop of the electricity from the power plant is the step-up substation. Substations generally have step-up stations and step-down stations. The voltage levels are generally from small to large: 35kV, 110kV, 220kV, 500kV, 1000kV. It is a part of the power system, and its function is to transform the voltage level, collect and distribute electric energy, mainly including transformers, busbars, line switchgear, buildings and facilities required for power system safety and control.

Most of the electrical equipment in the current power transmission and transformation cabinets are fixed in the cabinet, which is inconvenient to withdraw during maintenance, time-consuming and laborious, and most of the air inlets for air intake are in an open state for a long time, causing pollution. The possibility of intrusion of objects into the cabinet may cause damage to the electrical equipment in the cabinet.

Contents of the invention

The purpose of the present invention is to solve the problem that most of the electrical equipment in the power transmission and transformation cabinets in the prior art are fixed and placed in the cabinet, and it is inconvenient to withdraw during maintenance, which is time-consuming and laborious, and most of the air outlets used for air intake take a long time. It is in an open state, giving the possibility of pollutants and other intrusion into the cabinet, which may cause damage to the electrical equipment in the cabinet, and a transformer cabinet for power transmission and transformation is proposed.

In order to achieve the above object, the present invention adopts the following technical solutions:

A transformer cabinet for electric power transmission and transformation, comprising a cabinet body and a partition board installed at the lower position of the cabinet body, the cabinet body is divided into upper and lower parts by the partition board, the front of the cabinet body The side hinges are equipped with upper and lower door panels matched with the upper and lower parts of the cabinet; an exhaust device is installed under the partition board, and a timely blocking device is arranged on the partition board. There are several groups of guide rails arranged at intervals above the plate, and a mounting frame is arranged between the two guide rails of each group, and a cross-shaped stop frame is installed in the middle of the mounting frame, and the left and right sides of the mounting frame are Sliders are installed, and the two sliders are respectively slidably installed in a set of two guide rails. A locking device matching the mounting frame is installed in the cabinet, and each mounting frame is mounted under the All are equipped with a retractable device connected with the cross-shaped stop frame.

Preferably, the air exhaust device includes an air bucket arranged under the partition plate, the bottom side of the air bucket is connected with an air duct that runs through the side wall of the cabinet, and one end of the air duct extending out of the cabinet is connected to the fan. connected to the output.

Preferably, the timely blocking device includes a plurality of blocking blocks densely distributed on the partition plate, and the partition plate is provided with blocking openings that are opposite to the blocking blocks one by one for their insertion, and the blocking blocks are composed of Consists of a short column and a tapered head.

Preferably, several counterweight anti-fall blocks are fixedly connected to the outside of the short column in sequence, and the plurality of counterweight anti-fall blocks are circumferentially arranged on the top outer edge of the short column.

Preferably, the locking device includes a plurality of horizontal shafts installed inside the cabinet through vertical rotation of the bearing seat at intervals. There is a bevel gear b, a servo motor is installed on the top of the cabinet, the output shaft of the servo motor runs through the top of the cabinet and is fixedly connected with a vertical shaft, and a plurality of bevel gears a are installed at intervals outside the vertical shaft, so The bevel gear a is engaged with the bevel gear b respectively, and the left and right ends of the horizontal shaft are respectively fixed with lock hooks for locking the slider.

Preferably, the retractable device includes a support frame body fixed at the bottom of the cross-shaped frame, a support base is fixed on the inner side wall of the cabinet body, and a telescopic part is connected to the support base through the rotation of the pin shaft b, so that A pin shaft a is rotatably connected to the front end of the telescopic component, and the pin shaft a is rotatably inserted on the output end of the telescopic component, and a reset component matching the pin shaft a is installed in the supporting frame.

Preferably, the reset member includes a spring arranged in the support frame body, and one end of the spring close to the pin shaft a is fixed with a counter block, the counter block is arranged against the pin shaft a, and the counter block is set against the pin shaft a The abutting side is provided with an arc-shaped inner groove matching the arc surface of the pin axis a.

Preferably, a socket is opened on the side of the supporting frame body, and a protrusion is inserted and slidably connected to the socket, and the protrusion is fixedly connected to the contact block.

Preferably, the telescopic part is an electric telescopic rod, and the outer surface of the cabinet is equipped with a control device of the model DATA-7311 which is electrically connected to the telescopic part through wires and is used to control the telescopic part.

Preferably, the cross-shaped retaining frame can be detachably clamped and installed in the middle of the mounting frame, and the cross-shaped retaining frame is made of insulating rubber to achieve the effect of insulation and prevent the leakage of electrical equipment from affecting the normal operation of the telescopic component 18 .

Compared with the prior art, the present invention has the following advantages:

1. The present invention can realize the movement of the pin shaft a in the support frame through the expansion and contraction of the telescopic parts. The pin shaft a is against the abutment block, which can realize the forward extension of the installation frame. The installation frame extends out of the cabinet, which is convenient for the maintenance personnel to The maintenance of the electrical equipment placed on the installation frame saves time and effort, and when the corresponding electrical equipment is overhauled, the telescopic part under the corresponding installation frame is controlled to elongate, and the installation frame can be pushed out, which is more targeted and easy to use.

2. After the maintenance of the present invention, the installation frame retracted into the cabinet body realizes the locking and limiting of the two sliders on both sides of the installation frame through the two lock hooks at both ends of the horizontal axis, which can avoid the accidental sliding out of the installation frame and improve maintenance personnel Safety during operation, to avoid accidental fall of electrical equipment on the installation rack.

3. When the present invention needs to supply air to the electrical equipment in the cabinet to dissipate heat, the fan works to pump the fresh air into the air duct and pumps it upwards through the air bucket, so that the conical head of the blocking block that originally blocked the blocking port is lifted by the wind and left The gap for air supply, when the air bucket stops the air supply, the conical head of the blocking block is blocked in the sealing opening under the action of gravity, and the partition plate and the conical head of the densely distributed blocking block form a gap between the upper part of the cabinet body. It is relatively closed, which reduces the chance of foreign matter and other intrusion into the cabinet and affects the normal operation of electrical equipment in the cabinet, and is easy to use.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of electric power transmission and transformation transformer cabinet that the present invention proposes;

Fig. 2 is a three-dimensional schematic diagram of the connection of a transformer cabinet guide rail and a support base for electric power transmission and transformation proposed by the present invention;

Fig. 3 is a schematic diagram of the connection between the bevel gear a, the bevel gear b, and the locking hook of a transformer cabinet for electric power transmission and transformation proposed by the present invention;

Fig. 4 is a bottom view of the connection between the supporting seat and the telescopic parts of a transformer cabinet for electric power transmission and transformation proposed by the present invention;

Fig. 5 is an enlarged view of the three-dimensional structure of a transformer cabinet supporting frame for electric power transmission and transformation proposed by the present invention;

Fig. 6 is a schematic diagram of the position of the partition plate, wind bucket, air duct, and blocking block in the cabinet of a transformer cabinet for electric power transmission and transformation proposed by the present invention;

Fig. 7 is an enlarged view of a blocking block of a transformer cabinet for electric power transmission and transformation proposed by the present invention.

In the figure: 1 cabinet body, 2 partition board, 3 upper door panel, 4 lower door panel, 5 wind bucket, 6 air duct, 7 servo motor, 8 installation frame, 9 vertical shaft, 10 bevel gear a, 11 bevel gear b, 12 Horizontal shaft, 13 Lock hook, 14 Guide rail, 15 Slide block, 16 Support seat, 17 Cross-shaped stop frame, 18 Telescopic part, 19 Support frame body, 20 Resisting block, 21 Projection, 22 Socket, 23 Spring, 24 Pin Axle a, 25 pin shaft b, 26 blocking blocks, 2601 conical head, 2602 stubs, 2603 counterweight anti-falling blocks.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Example 1

Referring to Figures 1-7, in an embodiment of the present invention, a transformer cabinet for electric power transmission and transformation includes a cabinet body 1 and a partition plate 2 installed at the lower position of the cabinet body 1, and the cabinet body 1 is divided by The panel 2 is divided into upper and lower parts, and the front side of the cabinet body 1 is hingedly installed with an upper door panel 3 and a lower door panel 4 matched with the upper and lower parts of the cabinet body 1; an exhaust device is installed under the partition panel 2, The partition plate 2 is provided with a timely blocking device, and several groups of guide rails 14 are arranged at intervals above the partition plate 2. A mounting frame 8 is arranged between the two rails 14 of each group, and the middle part of the mounting frame 8 is installed. There is a cross-shaped retainer 17, which can be detachably clamped and installed in the middle of the installation frame 8. The cross-shaped retainer 17 is made of insulating rubber to achieve the effect of insulation and prevent electric equipment leakage from affecting the expansion part 18 For normal operation, sliders 15 are installed on the left and right sides of the installation frame 8, and the two sliders 15 are respectively slidably installed in a group of two guide rails 14, and a lock matching the installation frame 8 is installed in the cabinet body 1. Tight device, and the below of each installation frame 8 is all equipped with the retractable device that is connected with cross-shaped block frame 17.

The air exhaust device includes an air bucket 5 arranged below the partition plate 2. The bottom side of the air bucket 5 is connected with an air duct 6 that runs through the side wall of the cabinet body 1. The output ends are connected, and the timely blocking device includes a plurality of blocking blocks 26 densely distributed on the dividing plate 2, and the separating plate 2 is provided with blocking ports for its insertion which are opposite to the blocking blocks 26 one by one, and the blocking blocks 26 are formed by The short column 2602 and the conical head 2601 are formed. The conical head 2601 ensures that the bottom of the blocking block 26 lifted by the wind is more convenient for fresh air to enter and can help to form an acceleration effect on the wind, improving the fresh air decelerated by the conical head 2601. The discharge effect and speed are scientific and reasonable.

The locking device includes a plurality of horizontal shafts 12 installed inside the cabinet body 1 through the up and down rotation of the bearing seat. The horizontal shafts 12 and the mounting frame 8 are set in a one-to-one relationship. The horizontal shafts 12 are fixed with bevel gears b11 A servo motor 7 is installed on the top of the cabinet 1, the output shaft of the servo motor 7 runs through the top of the cabinet 1 and is fixedly connected with a vertical shaft 9, and a plurality of bevel gears a10 are installed at intervals outside the vertical shaft 9, and the bevel gears a10 are respectively connected with The bevel gear b11 is meshed and connected, and the left and right ends of the horizontal shaft 12 are respectively fixed with locking hooks 13 for locking the slider 15. After maintenance, the installation frame 8 retracted into the cabinet 1 passes through the two locking hooks 13 at both ends of the horizontal shaft 12 Realize the locking and limiting of the two sliders 15 on both sides of the mounting frame 8, which can avoid the accidental sliding out of the mounting frame 8;

The retractable device includes a support frame body 19 fixed on the bottom of the cross-shaped stop frame 17, a support seat 16 is fixed on the inner side wall of the cabinet body 1, and a telescopic part 18 is connected to the support seat 16 through the rotation of the pin shaft b25. The front end is rotatably connected with a pin shaft a24, and the pin shaft a24 is rotatably inserted on the output end of the telescopic part 18. A reset part matching the pin shaft a24 is installed in the supporting frame body 19, and the pin shaft can be realized through the expansion and contraction of the telescopic part 18. The movement of a24 in the support frame body 19, the pin shaft a24 is against the block 20, which can realize the forward extension of the installation frame 8, and the installation frame 8 stretches out of the cabinet body 1, which is convenient for maintenance personnel to place on the installation frame 8. The maintenance of electrical equipment saves time and effort.

The reset part includes a spring 23 arranged in the support frame body 19, and an end of the spring 23 close to the pin shaft a24 is fixed with a block 20, the block 20 is set against the pin shaft a24, and the end of the block 20 abuts against the pin shaft a24 The side is provided with an arc-shaped inner groove matching the arc surface of the pin shaft a24.

A socket 22 is provided on the side of the supporting frame body 19 , and a protruding block 21 is inserted and slidably connected to the socket 22 , and the protruding block 21 is fixedly connected with the supporting block 20 .

The telescopic part 18 is an electric telescopic rod. The electric telescopic rod is an electric drive device that converts the rotary motion of the motor into the linear reciprocating motion of the push rod. It can be used as an execution machine in various simple or complex technological processes. Realize remote control, centralized control or automatic control. It is mostly used in motion drive units in industries such as household appliances, kitchen utensils, medical equipment, and automobiles. The model of the control telescopic part 18 is a control device of DATA-7311.

The specific detailed working process is as follows: the expansion and contraction of the telescopic part 18 can realize the movement of the pin shaft a24 in the support frame body 19, and the pin shaft a24 is against the block 20, which can realize the forward extension of the mounting frame 8, and the mounting frame 8 is stretched out. Outside the cabinet body 1, it is convenient for maintenance personnel to overhaul the electrical equipment placed on the installation frame 8, saving time and effort. After the maintenance, the installation frame 8 retracted in the cabinet body 1 realizes the installation through the two lock hooks 13 at the two ends of the horizontal axis 12. The locking limit of the two sliders 15 on both sides of the frame 8 can prevent the accidental slipping of the mounting frame 8. When it is necessary to supply air to the electrical equipment in the cabinet 1 to dissipate heat, the fan works to pump fresh air into the air duct 6 through the The air bucket 5 is pumped upwards, so that the blocking block 26 that originally blocked the plugging port is lifted by the wind to leave a gap for the air to enter. In the plugging opening, the partition plate 2 and the densely distributed conical heads 2601 form a relatively closed upper part of the cabinet body 1, which reduces the probability of foreign matter and the like intruding into the cabinet body 1 and affecting the normal operation of the electrical equipment in the cabinet body 1.

Example 2

The difference between this embodiment and Embodiment 1 is that a number of counterweight anti-falling blocks 2603 are fixedly connected to the outside of the short column 2602 in turn, and a plurality of counterweight anti-falling blocks 2603 are circumferentially arranged on the top outer edge of the short column 2602. The circumferential arrangement of the anti-falling block 2603 on the stub 2602 can improve the upright posture that the conical head 2601 falls and attaches to the top of the partition plate 2, reduces the possibility of leaving a gap in the plugging port when the stub 2602 is skewed, and ensures the safety of falling. The stability when the tapered head 2601 re-blocks the plugging port forms a tightly fitting blocking effect.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (7)

1. The utility model provides a power transmission and transformation cabinet for electric power and electricity, includes cabinet body (1) and installs division board (2) in cabinet body (1) lower position department, its characterized in that, cabinet body (1) is separated into upper and lower two parts by division board (2), upper door plant (3), lower door plant (4) that are arranged in match with cabinet body (1) upper and lower two parts are articulated to the front side of cabinet body (1); an exhaust device is arranged below the partition plate (2), a timely plugging device is arranged on the partition plate (2), a plurality of groups of guide rails (14) are arranged above the partition plate (2) at intervals, a mounting frame (8) is arranged between each group of two guide rails (14), a cross-shaped baffle frame (17) is arranged in the middle of each mounting frame (8), sliding blocks (15) are arranged on the left side and the right side of each mounting frame (8), the two sliding blocks (15) are respectively and slidably arranged in one group of two guide rails (14), a locking device matched with the mounting frame (8) is arranged in the cabinet body (1), and a receiving and releasing device connected with the cross-shaped baffle frame (17) is arranged below each mounting frame (8);

the air exhaust device comprises an air scoop (5) arranged below the partition plate (2), an air pipe (6) penetrating through the side wall of the cabinet body (1) is connected to the bottom side of the air scoop (5), and one end of the air pipe (6) extending out of the cabinet body (1) is connected with the output end of the fan;

the timely plugging device comprises a plurality of plugging blocks (26) densely distributed on a partition plate (2), plugging openings which are opposite to the plugging blocks (26) one by one and used for being penetrated by the plugging blocks (26) are formed in the partition plate (2), and the plugging blocks (26) consist of short columns (2602) and conical heads (2601);

the folding and unfolding device comprises a support frame body (19) fixed at the bottom of a cross-shaped baffle frame (17), a support seat (16) is fixed on the inner side wall of the cabinet body (1), a telescopic component (18) is rotatably connected in the support seat (16) through a pin shaft b (25), a pin shaft a (24) is rotatably connected at the front end of the telescopic component (18), the pin shaft a (24) is rotatably inserted on the output end of the telescopic component (18), and a reset component matched with the pin shaft a (24) is arranged in the support frame body (19).

2. The power transformation cabinet for power transmission and transformation according to claim 1, wherein a plurality of weight anti-falling blocks (2603) are sequentially and fixedly connected to the outside of the short column (2602), and the plurality of weight anti-falling blocks (2603) are circumferentially arranged on the outer edge of the top of the short column (2602).

3. The power transformation cabinet for electric power transmission and transformation according to claim 1, characterized in that the locking device comprises a plurality of transverse shafts (12) which are installed inside the cabinet body (1) through bearing seats in an up-down interval mode, the transverse shafts (12) are in one-to-one corresponding arrangement with the installation racks (8), bevel gears b (11) are fixedly sleeved outside the transverse shafts (12), a servo motor (7) is installed at the top of the cabinet body (1), a vertical shaft (9) is fixedly connected after an output shaft of the servo motor (7) penetrates through the top of the cabinet body (1), a plurality of bevel gears a (10) are installed outside the vertical shaft (9) at intervals, the bevel gears a (10) are respectively connected with the bevel gears b (11) in a meshed mode, and locking hooks (13) for locking sliding blocks (15) are respectively fixed at the left end and the right end of each transverse shaft (12).

4. The power transmission and transformation cabinet for electric power transmission and transformation according to claim 1, characterized in that the reset component comprises a spring (23) arranged in a supporting frame body (19), one end of the spring (23) close to a pin a (24) is fixedly provided with a supporting block (20), the supporting block (20) is propped against the pin a (24), and one side of the supporting block (20) propped against the pin a (24) is provided with an arc-shaped inner groove matched with the arc surface of the pin a (24).

5. The power transformation cabinet for power transmission and transformation according to claim 4, wherein the side surface of the supporting frame body (19) is provided with a socket (22), a lug (21) is inserted into the socket (22) and is connected with the socket in a sliding manner, and the lug (21) is fixedly connected with the abutting block (20).

6. The power transformation cabinet for electric power transmission and transformation according to claim 1, wherein the telescopic component (18) is an electric telescopic rod, and a control device which is electrically connected with the telescopic component (18) through a wire and is used for controlling the telescopic component (18) and has the model number of DATA-7311 is arranged on the outer surface of the cabinet body (1).

7. The power transformation cabinet for power transmission and transformation according to claim 1, wherein the cross-shaped baffle frames (17) are detachably clamped and installed in the middle of the installation frame (8), and the cross-shaped baffle frames (17) are made of insulating rubber.