Fireproof box-type substation

Abstract

The invention relates to a box-type transformer substation, in particular to a fireproof box-type transformer substation which comprises a box-type transformer substation body, a connecting frame, a plurality of connecting pipes, a negative-pressure dry powder box, a moving frame, a rotating spray head and the like. The connecting frame is connected to the upper side of the interior of the box-type transformer substation body, and the connecting pipes are evenly connected to the connecting frame at intervals; the upper side of the right part of the box transformer body is provided with a negative pressure dry powder box, the upper side of the interior of the box transformer body is slidably connected with a moving frame, and the moving frame is rotatably connected with two rotating nozzles. After detecting smoke, a detection plate controls a special-shaped motor, so that a moving frame and a rotary spray head move left and right, the moving frame is separated from a stop lever, a sealing plate is opened, dry powder in a negative-pressure dry powder box is sprayed out of the rotary spray head, and the rotary spray head can rotate through rotation of a missing gear, so that the spraying range of the dry powder is enlarged; and the rotary spray head is positioned right above a fire point through the positioning rod to extinguish fire, so that the fire can be extinguished more effectively and quickly, and the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a box-type substation, and particularly to a fire-proof box-type substation. Background Art

[0002] A box-type substation is a high-voltage switchgear, a distribution transformer and a low-voltage distribution device, which are factory prefabricated indoor and outdoor compact distribution equipment arranged according to a certain wiring scheme. Due to high temperature or short circuit inside the box-type substation, there is a risk of fire. At present, most box-type substations use manual fire extinguishing and it is difficult to automatically extinguish the fire, thus causing losses of life and property.

[0003] A Chinese patent with the patent publication number CN114361960B discloses a fire-proof European box-type substation, including two air outlets symmetrically arranged at the upper end of the box-type substation body. A detachable moisture-proof cover is arranged on the air outlets, and a fan and a blocking plate are rotatably arranged in the air outlets. There are two groups of blocking plates, both of which are coaxially arranged with the air outlets.

[0004] The above patent drives the nozzle to move through a reciprocating drive mechanism to spray dry powder on the box-type substation for fire extinguishing. However, the ignition point inside the box-type substation body is usually a local position. After the nozzle sprays towards the ignition point, it will move away from the ignition point, and it is difficult to aim at the ignition point according to the position of the ignition point for fire extinguishing. There may be a situation where the ignition point is not completely extinguished and continues to burn, and the fire extinguishing efficiency needs to be improved. Summary of the Invention

[0005] In order to overcome the drawbacks that it is difficult to aim at the ignition point according to the position of the ignition point for fire extinguishing in the prior art, there may be a situation where the ignition point is not completely extinguished and continues to burn, and the fire extinguishing efficiency needs to be improved, the purpose of the present invention is to provide a fire-proof box-type substation that can aim at the ignition point.

[0006] Technical Solution: A fire-proof box-type substation includes a box-type substation body, a ventilation plate and a connecting frame. The ventilation plate is connected to the right part of the box-type substation body, and the connecting frame is connected to the upper side inside the box-type substation body. It further includes a connecting pipe, a detection plate, a negative pressure dry powder box, a moving frame, a telescopic pipe, a rotary nozzle, a driving mechanism, a positioning component, a rotating mechanism and a control mechanism. A number of connecting pipes are evenly spaced and connected to the connecting frame. The detection plate is connected inside the box-type substation body. The negative pressure dry powder box is installed on the upper right side of the box-type substation body. The moving frame is slidably connected to the upper side inside the box-type substation body. Two telescopic pipes are connected between the moving frame and the negative pressure dry powder box. Two rotary nozzles are rotatably connected to the moving frame, and the rotary nozzles are both communicated with the adjacent telescopic pipes. A driving mechanism for driving the moving frame to move is provided on the box-type substation body. A positioning component and a rotating mechanism are provided on the moving frame. A control mechanism is provided on the box-type substation body.

[0007] In addition, it is particularly preferred that the drive mechanism includes a special-shaped motor, a screw rod, a clamping bead, and a first compression spring. A special-shaped motor for driving the moving frame to move is connected to the right part of the box-type transformer body. The detection plate is electrically connected to the special-shaped motor. A screw rod is rotatably connected to the upper side inside the box-type transformer body. The output shaft of the special-shaped motor is connected to the screw rod. The screw rod is threadedly connected to the moving frame. A clamping bead is slidably connected to the middle of the moving frame. A first compression spring is connected between the clamping bead and the moving frame. The clamping bead is located in the thread groove of the screw rod.

[0008] In addition, it is particularly preferred that the positioning assembly includes a positioning rod and a return spring. Two positioning rods are slidably connected to the moving frame. Return springs are connected between the positioning rods and the moving frame respectively. A number of positioning grooves are spaced apart on the connecting frame. The connecting pipes are all located in adjacent positioning grooves.

[0009] In addition, it is particularly preferred that the rotating mechanism includes a sliding sleeve, a defective gear, a toothed rack, a pulling rope, and a guiding block. A sliding sleeve is rotatably connected to the moving frame. The defective gear is connected to the sliding sleeve. A toothed rack that slides back and forth is provided on the moving frame. There are two racks on the toothed rack. When the defective gear rotates, it will intermittently engage with the two racks in sequence. A pulling rope for driving the guiding block to rotate is connected to the upper part of the toothed rack. Guiding blocks are connected to the rotating nozzles respectively. The pulling rope is wound around the two guiding blocks.

[0010] In addition, it is particularly preferred that convex strips are provided inside the sliding sleeve, and sliding grooves matching the convex strips are opened on the screw rod so that the sliding sleeve slides on the screw rod.

[0011] In addition, it is particularly preferred that the control mechanism includes a stop rod, a fixed frame, a rocker, a torsion spring, a sealing plate, and a return spring. A stop rod is slidably connected to the upper side inside the box-type transformer body. A fixed frame is connected to the upper side inside the box-type transformer body. A rocker is rotatably connected to the fixed frame. Two torsion springs are connected between the rocker and the fixed frame. The stop rod abuts against the rocker. A sealing plate is slidably connected between the two telescopic pipes. A return spring is connected between the sealing plate and the moving frame. The sealing plate blocks the connection between the telescopic pipe and the negative pressure dry powder box. The upper part of the rocker abuts against the sealing plate.

[0012] In addition, it is particularly preferred that a closing mechanism is further included. The closing mechanism includes a baffle, a connecting rod, and a second compression spring. A baffle for blocking the ventilation opening of the ventilation plate is slidably connected to the ventilation plate. A second compression spring is connected between the baffle and the ventilation plate. Two connecting rods are connected to the top of the baffle. The connecting rods abut against the lower part of the rocker.

[0013] In addition, it is particularly preferred that a liquid with a high expansion rate is provided inside the connecting pipe.

[0014] 1. After the detection board of the present invention detects smoke, it will control the special-shaped motor to move the moving frame and the rotating nozzle left and right. The moving frame is separated from the blocking rod, the sealing plate is opened, and the dry powder in the negative-pressure dry powder box is ejected from the rotating nozzle. The rotation of the missing gear can make the rotating nozzle rotate, increasing the ejection range of the dry powder. The connecting pipe breaks after being heated, and the rotating nozzle is positioned directly above the ignition point through the positioning rod for fire extinguishing, so as to extinguish the fire more effectively and quickly and improve the fire extinguishing efficiency.

[0015] 2. When the seesaw of the present invention rotates counterclockwise, under the action of the second compression spring, the baffle moves downward to block the ventilation opening of the ventilation plate, so that oxygen no longer enters the inside of the box substation body, reducing the fire and improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the box substation body of the present invention.

[0018] Figure 3 It is a schematic diagram of the internal structure of the box substation body of the present invention, in which the negative-pressure dry powder box is hidden.

[0019] Figure 4 It is a partial sectional structure diagram of the moving frame, telescopic pipe and rotating nozzle of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the special-shaped motor and screw of the present invention.

[0021] Figure 6 It is a partial sectional structure diagram of the special-shaped motor, screw and moving frame of the present invention.

[0022] Figure 7 For the present invention Figure 6 Enlarged view of part A.

[0023] Figure 8 It is a schematic diagram of the structure of the positioning rod, return spring and driving mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the structure of the positioning rod, return spring and driving mechanism from another perspective of the present invention.

[0025] Figure 10 For the present invention Figure 9 Enlarged view of part B.

[0026] Figure 11 It is a schematic diagram of the structure of the special-shaped motor, screw, sliding sleeve and toothed rack of the present invention.

[0027] Figure 12 It is a schematic diagram of the structure of the rotating mechanism of the present invention.

[0028] Figure 13 This is an exploded view of the screw and the sliding sleeve of the present invention.

[0029] Figure 14 This is a schematic cross-sectional structure diagram of the screw and the sliding sleeve of the present invention.

[0030] Figure 15 This is a schematic structure diagram of the control mechanism of the present invention.

[0031] Figure 16 This is a schematic structure diagram of the control mechanism and the telescopic pipe of the present invention.

[0032] Figure 17 This is a schematic structure diagram of the fixing frame, the rocker and the closing mechanism of the present invention.

[0033] In the figure: 1, box-type transformer body; 2, ventilation plate; 3, connecting frame; 4, connecting pipe; 5, detection plate; 6, negative pressure dry powder box; 7, moving frame; 8, telescopic pipe; 9, rotary nozzle; 101, special-shaped motor; 102, screw; 103, ball; 104, first compression spring; 111, positioning rod; 112, return spring; 113, positioning groove; 121, sliding sleeve; 122, missing gear; 123, toothed rack; 124, pull rope; 125, guide block; 126, chute; 130, stop bar; 131, fixing frame; 132, rocker; 133, torsion spring; 134, sealing plate; 135, return spring; 141, baffle; 142, connecting rod; 143, second compression spring. Detailed Embodiment

[0034] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention. Embodiment 1

[0035] A fireproof box-type substation, as Figures 1-16As shown in the figure, it includes a box-type transformer body 1, a ventilation plate 2, a connecting frame 3, a connecting pipe 4, a detection plate 5, a negative pressure dry powder box 6, a moving frame 7, a telescopic pipe 8, a rotating nozzle 9, a driving mechanism, a positioning component, a rotating mechanism and a control mechanism. A ventilation plate 2 is welded to the right part of the box-type transformer body 1. A connecting frame 3 is welded to the upper side inside the box-type transformer body 1. A number of connecting pipes 4 are evenly spaced and connected to the connecting frame 3. A high-expansion liquid is provided inside the connecting pipe 4. A detection plate 5 is installed on the rear side of the inner wall of the box-type transformer body 1. The detection plate 5 can detect smoke when a fire breaks out. A negative pressure dry powder box 6 is installed on the upper side of the right part of the box-type transformer body 1. A moving frame 7 is slidably connected to the upper side inside the box-type transformer body 1. Two telescopic pipes 8 are connected between the moving frame 7 and the negative pressure dry powder box 6. Two symmetrically arranged rotating nozzles 9 are rotatably connected to the moving frame 7. The rotating nozzles 9 are both communicated with the adjacent telescopic pipes 8. A driving mechanism for driving the moving frame 7 to move is provided on the box-type transformer body 1. A positioning component and a rotating mechanism are provided on the moving frame 7. A control mechanism is provided on the box-type transformer body 1.

[0036] As Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown in the figure, the driving mechanism includes a special-shaped motor 101, a screw rod 102, a clamping bead 103 and a first compression spring 104. The special-shaped motor 101 is bolted to the upper side of the right part of the box-type transformer body 1. The detection plate 5 is electrically connected to the special-shaped motor 101. The screw rod 102 is rotatably connected to the upper side inside the box-type transformer body 1. The output shaft of the special-shaped motor 101 is connected to the screw rod 102. The screw rod 102 is threadedly connected to the moving frame 7. A clamping bead 103 is slidably connected to the middle of the moving frame 7. A first compression spring 104 is connected between the clamping bead 103 and the moving frame 7. The clamping bead 103 is located in the thread groove of the screw rod 102.

[0037] As Figures 8-10 As shown in the figure, the positioning component includes a positioning rod 111 and a return spring 112. The positioning rod 111 is slidably connected to the front and rear parts of the moving frame 7. A return spring 112 is fixedly connected between the positioning rod 111 and the moving frame 7. A number of positioning grooves 113 are spaced apart on the connecting frame 3. The connecting pipes 4 are all located in the adjacent positioning grooves 113. After the connecting pipe 4 bursts, the positioning rod 111 is positioned in the positioning groove 113 so that the rotating nozzle 9 is positioned directly above the fire point.

[0038] As Figure 7 , Figure 11 , Figure 12 , Figure 13 and Figure 14As shown, the rotating mechanism includes a sliding sleeve 121, a missing gear 122, a toothed rack 123, a pulling rope 124, and a guiding block 125. The sliding sleeve 121 is rotatably connected to the left side of the moving frame 7. A convex strip is provided inside the sliding sleeve 121, and a sliding groove 126 matching the convex strip is formed on the screw rod 102, so that the sliding sleeve 121 slides on the screw rod 102. The missing gear 122 is welded to the sliding sleeve 121. A toothed rack 123 that slides back and forth is provided on the left side of the moving frame 7. Two racks are provided on the toothed rack 123. When the missing gear 122 rotates, it will intermittently engage with the two racks in sequence. A pulling rope 124 is fixedly connected to the upper part of the toothed rack 123. Guiding blocks 125 are welded to the upper parts of the rotary nozzles 9. The pulling rope 124 is wound around the two guiding blocks 125 to drive the guiding blocks 125 to rotate, thereby rotating the rotary nozzles 9.

[0039] As Figure 15 and Figure 16 As shown, the control mechanism includes a stop rod 130, a fixed frame 131, a seesaw 132, a torsion spring 133, a sealing plate 134, and a return spring 135. The stop rod 130 is slidably connected to the upper side inside the box transformer body 1. The fixed frame 131 is welded to the upper side inside the box transformer body 1. The seesaw 132 is rotatably connected to the fixed frame 131. Two torsion springs 133 are fixedly connected between the seesaw 132 and the fixed frame 131. The stop rod 130 abuts against the seesaw 132. A sealing plate 134 is slidably connected between the two telescopic tubes 8. A return spring 135 is fixedly connected between the sealing plate 134 and the moving frame 7. The sealing plate 134 blocks the communication between the telescopic tube 8 and the negative pressure dry powder box 6. The upper part of the seesaw 132 abuts against the sealing plate 134.

[0040] Initially, the ventilation plate 2 functions for ventilation to dissipate the heat inside the box-type substation body 1. The reset spring 112 is in a stretched state. The moving frame 7 abuts against the stop lever 130, causing the torsion spring 133 to be in a deformed state. The rocker 132 abuts against the sealing plate 134, causing the return spring 135 to be in a compressed state so that the sealing plate 134 is closed. When a fire breaks out inside the box-type substation body 1, smoke is generated. After the detection plate 5 detects the smoke, it will control the special-shaped motor 101 to drive the screw 102 to rotate forward and backward reciprocally. Since the ball 103 is located in the thread groove, it drives the ball 103 to move left and right reciprocally, thereby causing the moving frame 7 to move left and right reciprocally on the upper side inside the box-type substation body 1, driving the rotary nozzle 9 to move left and right reciprocally. When the moving frame 7 separates from the stop lever 130, the torsion spring 133 returns to its original state, driving the rocker 132 to rotate counterclockwise. The rocker 132 no longer abuts against the sealing plate 134, and the return spring 135 returns to its original state, driving the sealing plate 134 to move leftward to open, so that the dry powder in the negative pressure dry powder box 6 is sprayed out from the rotary nozzle 9 through the telescopic pipe 8 for fire extinguishing. At the same time, under the action of the convex strip, the rotation of the screw 102 will drive the sliding sleeve 121 to rotate forward and backward reciprocally, driving the missing gear 122 to rotate forward and backward reciprocally. Under the action of the chute 126, the sliding sleeve 121 can slide left and right while rotating. The missing gear 122 will intermittently engage with the rack in turn, so that the toothed rack 123 moves back and forth. The toothed rack 123 pulls the pull rope 124, and under the action of friction, the guide block 125 rotates, thereby driving the rotary nozzle 9 to rotate reciprocally, so that the dry powder is sprayed out rotationally, increasing the spraying range of the dry powder. The connecting pipe 4 directly above the ignition point is closer to the ignition point. This connecting pipe 4 absorbs more heat. After this connecting pipe 4 is heated, the liquid inside evaporates, and under the action of pressure, this connecting pipe 4 bursts. When the moving frame 7 moves to this connecting pipe 4, the positioning rod 111 on the moving frame 7 aligns with the corresponding positioning groove 113, and the reset spring 112 returns to its original state, driving the positioning rod 111 to move upward. The positioning rod 111 is stuck into this positioning groove 113, and the moving frame 7, the positioning rod 111, and the rotary nozzle 9 stop moving. The screw 102 continues to rotate, and the ball 103 will move up and down reciprocally, and the compression spring 104 adaptively deforms. At this time, the rotary nozzle 9 stops directly above the ignition point, can be aligned with the ignition point, so that more dry powder is sprayed onto the ignition point, and dry powder can also be sprayed onto other places, thereby extinguishing the fire more effectively and quickly and improving the fire extinguishing efficiency.

[0041] Embodiment 2: On the basis of Embodiment 1, as Figure 17As shown in the figure, it further includes a closing mechanism. The closing mechanism includes a baffle 141, a connecting rod 142, and a second compression spring 143. The baffle 141 is slidably connected to the ventilation plate 2. When the baffle 141 moves downward, it will block the ventilation opening of the ventilation plate 2. A second compression spring 143 is fixedly connected between the baffle 141 and the ventilation plate 2. Initially, the second compression spring 143 is in a compressed state. Two symmetrically arranged connecting rods 142 are welded to the top of the baffle 141. The connecting rods 142 abut against the lower part of the rocker 132. When the rocker 132 rotates counterclockwise, the rocker 132 no longer abuts against the connecting rods 142, and the second compression spring 143 returns to its original state, driving the baffle 141 and the connecting rods 142 to move downward. The baffle 141 blocks the ventilation opening of the ventilation plate 2, so that oxygen no longer enters the inside of the box substation body 1, thereby reducing the fire and improving the fire extinguishing efficiency.

[0042] It should be understood that this embodiment is only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A fireproof box-type substation, comprising a box-type substation body (1), a ventilation plate (2) and a connecting frame (3). The ventilation plate (2) is connected to the right part of the box-type substation body (1), and the connecting frame (3) is connected to the upper side inside the box-type substation body (1). Its characteristics are that, It further includes a connecting pipe (4), a detection board (5), a negative pressure dry powder box (6), a moving frame (7), a telescopic pipe (8), a rotary nozzle (9), a driving mechanism, a positioning component, a rotating mechanism and a control mechanism. A plurality of connecting pipes (4) are evenly spaced and connected to the connecting frame (3). A detection board (5) is connected inside the box-type transformer body (1). A negative pressure dry powder box (6) is installed on the upper side of the right part of the box-type transformer body (1). A moving frame (7) is slidably connected to the upper side inside the box-type transformer body (1). Two telescopic pipes (8) are connected between the moving frame (7) and the negative pressure dry powder box (6). Two rotary nozzles (9) are rotatably connected to the moving frame (7). The rotary nozzles (9) are both communicated with the adjacent telescopic pipes (8). A driving mechanism for driving the moving frame (7) to move is provided on the box-type transformer body (1). A positioning component and a rotating mechanism are provided on the moving frame (7). A control mechanism is provided on the box-type transformer body (1).

2. The fireproof box-type substation according to claim 1, characterized in that, The driving mechanism includes a special-shaped motor (101), a screw rod (102), a ball (103) and a first compression spring (104). A special-shaped motor (101) for driving the moving frame (7) to move is connected to the right part of the box-type transformer body (1). The detection board (5) is electrically connected to the special-shaped motor (101). A screw rod (102) is rotatably connected to the upper side inside the box-type transformer body (1). The output shaft of the special-shaped motor (101) is connected to the screw rod (102). The screw rod (102) is threadedly connected to the moving frame (7). A ball (103) is slidably connected to the middle of the moving frame (7). A first compression spring (104) is connected between the ball (103) and the moving frame (7). The ball (103) is located in the thread groove of the screw rod (102).

3. A fireproof box-type substation according to claim 1, characterized in that, The positioning component includes a positioning rod (111) and a return spring (112). Two positioning rods (111) are slidably connected to the moving frame (7). Return springs (112) are connected between the positioning rods (111) and the moving frame (7). A number of positioning grooves (113) are spaced apart on the connecting frame (3). The connecting pipes (4) are all located in the adjacent positioning grooves (113).

4. A fireproof box-type substation according to claim 2, characterized in that, The rotating mechanism includes a sliding sleeve (121), a missing gear (122), a toothed rack (123), a pulling rope (124) and a guiding block (125). A sliding sleeve (121) is rotatably connected to the moving frame (7). A missing gear (122) is connected to the sliding sleeve (121). A toothed rack (123) that slides back and forth is provided on the moving frame (7). The toothed rack (123) has two sections of teeth. When the missing gear (122) rotates, it will intermittently engage with the two sections of teeth in sequence. A pulling rope (124) for driving the guiding block (125) to rotate is connected to the upper part of the toothed rack (123). Guiding blocks (125) are connected to the rotary nozzles (9). The pulling rope (124) is wound around the two guiding blocks (125).

5. The fireproof box-type substation according to claim 4, characterized in that, Convex strips are provided inside the sliding sleeve (121). A sliding groove (126) that cooperates with the convex strips is opened on the screw rod (102) so that the sliding sleeve (121) slides on the screw rod (102).

6. The fireproof box-type substation according to claim 1, characterized in that, The control mechanism includes a shift lever (130), a fixed bracket (131), a rocker (132), a torsion spring (133), a sealing plate (134) and a return spring (135). The shift lever (130) is slidably connected to the upper side inside the box-type transformer body (1). The fixed bracket (131) is connected to the upper side inside the box-type transformer body (1). The rocker (132) is rotatably connected to the fixed bracket (131). Two torsion springs (133) are connected between the rocker (132) and the fixed bracket (131). The shift lever (130) abuts against the rocker (132). The sealing plate (134) is slidably connected between the two telescopic tubes (8). A return spring (135) is connected between the sealing plate (134) and the moving frame (7). The sealing plate (134) blocks the connection between the telescopic tube (8) and the negative pressure dry powder box (6). The upper part of the rocker (132) abuts against the sealing plate (134).

7. The fireproof box-type substation according to claim 6, characterized in that, It further includes a closing mechanism. The closing mechanism includes a baffle (141), a connecting rod (142) and a second compression spring (143). A baffle (141) for blocking the ventilation opening of the ventilation plate (2) is slidably connected to the ventilation plate (2). A second compression spring (143) is connected between the baffle (141) and the ventilation plate (2). Two connecting rods (142) are connected to the top of the baffle (141). The connecting rods (142) abut against the lower part of the rocker (132).

8. A fireproof box-type substation according to claim 1, characterized in that, The connecting pipe (4) is internally provided with a liquid with a high expansion rate.

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