Ring main unit protection method and device

Abstract

The invention discloses a ring main unit protection method which comprises the following steps: assembling an outer protection plate at the top of a cable trench of a ring main unit, laying a flexible waterproof film on the outer protection plate, and sequentially arranging an inner protection plate and a frame on the flexible waterproof film according to the trace of an assembly crease; the flexible waterproof films are folded again according to the assembly creases, the frame is wrapped with the flexible waterproof films, then the side protection plates are installed, the flexible waterproof films are clamped between the protection side plates and the frame and between the inner protection plate and the outer protection plate respectively, and a protection body which can be flatly placed and opened on the four sides is formed. The invention further discloses a ring main unit protection device. According to the ring main unit protection method and device, on the basis that the structure of the outer box is not changed, the installation mode is not changed, and the cabinet body is not moved, the ring main unit can be prevented from being flooded with low cost; the structure is reasonable, and construction and installation are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply equipment, and in particular to a ring main unit protection method and device. Background Art

[0002] In the prior art, there are mainly the following ways to prevent ring main units from flooding: 1. Designing a ring main unit with a watertight function, or modifying the structure of an existing ring main unit to achieve a waterproof effect; 2. Designing an auxiliary mechanism to raise the ring main unit during the period of water accumulation to prevent flooding.

[0003] The above protection methods all have certain limitations, which are mainly reflected in: the structure and installation structure of the cabinet need to be changed, huge investment is made in design, manufacturing and construction costs, and at the same time, non-standard problems will arise, increasing maintenance and repair costs; the method of raising the cabinet of the ring network cabinet obviously only changes the installation method, but the ring network cabinet is a static equipment, and frequent raising of the cabinet will pull the incoming and outgoing cables, which may easily cause equipment failure; the method of adding a sealed structure has problems such as affecting heat dissipation and the internal equipment is susceptible to moisture. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a ring network cabinet protection method and device, which can realize the waterproofing of the ring network cabinet at a relatively low cost without changing the outer box structure, the installation method, or moving the cabinet; the structure is reasonable and easy to construct and install.

[0005] In order to solve the above technical problems, the present invention provides a ring network cabinet protection method, comprising the following steps: folding an entire seamless flexible waterproof membrane from four sides to form an assembly crease, and configuring a frame, an inner protective plate, an outer protective plate and a side protective plate whose sizes are compatible with the assembly crease according to the size of the assembly crease; assembling the outer protective plate on the top of the ring network cabinet cable trench, laying the flexible waterproof membrane on the outer protective plate, and sequentially installing the inner protective plate and the frame on the flexible waterproof membrane according to the traces of the assembly crease; folding the flexible waterproof membrane again according to the assembly crease, covering the outside of the frame and then installing the side protective plates, the flexible waterproof membrane being respectively sandwiched between the protective side plates and the frame and between the inner protective plate and the outer protective plate to form a protective body that can be laid flat and opened on all four sides; and providing a glue-filled sealing component for the ring network cabinet cable to pass through at the corresponding positions of the inner protective plate, the flexible waterproof membrane and the outer protective plate.

[0006] The method also includes the steps of respectively installing hinges on the frame, the inner protection plate, the side protection plate and the outer protection plate.

[0007] The step of forming a protective body that can be laid flat and opened on four sides also includes: installing ventilation and drainage components in the protective body.

[0008] Among them, after the step of opening a glue-filling sealing component for the ring network cabinet cable to pass through at the corresponding positions of the inner protective plate, the flexible waterproof membrane and the outer protective plate, the step includes: setting a waterproof flange at the bottom of the protective body, and performing glue-filling sealing after the cable of the ring network cabinet passes through the waterproof flange.

[0009] In order to solve the above technical problems, the present invention also discloses a ring network cabinet protection device, which is characterized by comprising: a flexible waterproof membrane that can be folded from four sides to form an assembly fold, and a frame, an inner protection plate, an outer protection plate and a side protection plate that are adapted to the size of the assembly fold;

[0010] The outer protective plate is installed on the top of the cable trench of the ring network cabinet, the flexible waterproof membrane is laid on the outer protective plate, the inner protective plate is laid on the middle part of the flexible waterproof membrane, and the middle part of the flexible waterproof membrane is pressed against the outer protective plate;

[0011] The flexible waterproof membrane is folded along the assembly crease, and the side protective plates are connected to the frame. The side protective plates press the four sides of the flexible waterproof membrane against the outside of the frame. The flexible waterproof membrane is sandwiched between the protective side plates and the frame and between the inner protective plates and the outer protective plates, forming a protective body that can be opened flat on all four sides.

[0012] Among them, the flexible waterproof membrane is made of a layer of high-strength polyester or nylon with a PVC calendered membrane on both sides that is heated and pressurized; the frame can be opened flat from all four sides, and the frame is made of aluminum alloy material.

[0013] Among them, hinges are installed between the frame and the inner protective plate, and hinges are installed between the side protective plate and the outer protective plate.

[0014] A waterproof flange is arranged at the bottom of the protective body, and the cables of the ring network cabinet pass through the waterproof flange and are sealed by glue filling.

[0015] Wherein, a ventilation and drainage component is installed in the protective body.

[0016] The inner protective plate and the frame are rigidly connected to the outer wall of the ring network cabinet.

[0017] A ring network cabinet protection method and device implementing the present invention have the following beneficial effects: a whole seamless flexible waterproof membrane is folded from four sides to form an assembly crease, and a frame, an inner protective plate, an outer protective plate and a side protective plate whose sizes are compatible with the assembly crease are configured according to the size of the assembly crease; the outer protective plate is assembled on the top of the cable trench of the ring network cabinet, the flexible waterproof membrane is laid on the outer protective plate, and the inner protective plate and the frame are sequentially installed on the flexible waterproof membrane according to the trace of the assembly crease; the flexible waterproof membrane is folded again according to the assembly crease, and the side protective plates are installed after it is covered on the outside of the frame, and the flexible waterproof membrane is respectively sandwiched between the protective side plates and the frame and the inner protective plate and the outer protective plate to form a protective body that can be laid flat and opened on all sides, which can realize the floodproofing of the ring network cabinet at a relatively low cost without changing the outer box structure, the installation method and the cabinet body; the structure is reasonable and easy to construct and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0019] Figure 1 The present invention is a flowchart of a ring main unit protection method according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the effect of folding a whole seamless flexible waterproof membrane from four sides to form assembly creases according to an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the ring main unit protection device according to an embodiment of the present invention.

[0022] Figure 4 It is a schematic structural diagram of installing a ventilation and drainage component in a flexible waterproof membrane according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 2 The figure shows the first embodiment of the ring main unit protection method of the present invention.

[0025] The ring main unit protection method in this embodiment includes the following steps:

[0026] S10, folding the entire seamless flexible waterproof membrane from four sides to form an assembly crease, and configuring a frame, an inner protective plate, an outer protective plate, and a side protective plate whose sizes are adapted to the assembly crease according to the size of the assembly crease;

[0027] S20, assembling the outer protective plate on the top of the cable trench of the ring main unit, laying the flexible waterproof membrane on the outer protective plate, and sequentially installing the inner protective plate and the frame on the flexible waterproof membrane according to the traces of the assembly creases;

[0028] S30, folding the flexible waterproof membrane again according to the assembly crease, covering it on the outside of the frame, and then installing the side protection plates, the flexible waterproof membrane is respectively sandwiched between the protection side plates and the frame and between the inner protection plate and the outer protection plate, so as to form a protection body that can be laid flat and opened on all four sides;

[0029] S40, a glue-filled sealing assembly for the ring network cabinet cable to pass through is provided at corresponding positions of the inner protective plate, the flexible waterproof membrane and the outer protective plate.

[0030] In the specific implementation, in step S10, the flexible waterproof membrane 1 is formed by heating and pressurizing a PVC calendered membrane on both sides of a layer of high-strength polyester or nylon. The flexible waterproof membrane 1 has a strong structure, is non-flammable, has high strength, is cold-resistant and high-temperature-resistant, and has excellent stability. In the actual design and production process, the dimensions of the bottom of the ring main unit and the bottom of the outer box must first be measured, and the side protection height must be considered, and then the area and size of the waterproof membrane and the position of the cable entry and exit holes must be determined.

[0031] By folding an assembly fold t on the flexible waterproof membrane 1, it is easier to configure the sizes of the frame 2, the inner protective plate 3, the outer protective plate 4 and the side protective plate 5, making the assembly faster.

[0032] In step S20, the frame 2 is assembled from rigid materials. The assembled frame 2 is cubic, and can be made of aluminum alloy. The frame 2 can be laid flat and opened from four sides. In this way, the ring network cabinet protection device can also be laid flat and opened from four sides, which is convenient for the opening and closing of the door of the ring network cabinet 8 and easy for inspection and maintenance. During implementation, the corresponding frame 2 can be designed and manufactured according to the required protection height and bottom area of ​​the ring network cabinet, so as to meet the strength requirements under a certain water depth.

[0033] The outer protective plate 4 and the inner protective plate 3 are plate-shaped and made of polymer materials. The outer protective plate 4 is assembled on the top of the cable trench of the ring network cabinet, the flexible waterproof membrane 1 is laid on the outer protective plate 4, and the inner protective plate 3 is laid on the middle of the flexible waterproof membrane 1. The inner protective plate 3 presses the middle of the flexible waterproof membrane 1 against the outer protective plate 4. The flexible waterproof membrane 1 is 1a before being folded out of the assembly fold t, and the shape after being assembled according to the assembly fold t is 1b.

[0034] Preferably, hinges are installed between the frame 2 and the inner protective plate 3, so that the frame 2 can be laid flat and opened from four sides, which is convenient for quick installation on site and prevents wear and damage.

[0035] In step S30, the side protection plate 5 is made of polymer material and can be detachably connected to the frame 2. During implementation, the flexible waterproof membrane 1 is folded according to the assembly fold t, and the side protection plate 5 is connected to the frame 2. The side protection plate 5 presses the four sides of the flexible waterproof membrane 1 against the outside of the frame 2. The flexible waterproof membrane 1 is sandwiched between the protective side plate 5 and the frame 2 and the inner protection plate 3 and the outer protection plate 4, respectively, to form a protective body p that can be laid flat and opened on all four sides. A hinge is installed between the side protection plate 5 and the outer protection plate 4, so that the protective body p can be laid flat and opened from all four sides, which is convenient for rapid installation on site and prevents wear and damage.

[0036] In step S40, a waterproof flange 6 is provided at the bottom of the protective body p, and the cable 81 of the ring main unit 8 passes through the waterproof flange 6 and is sealed by glue filling. In this embodiment, the waterproof flange 6 is a water-tight cable-passing flange with high water tightness and a solid structure, which can be firmly assembled and can maintain water tightness under the pressure of a certain water depth. The waterproof flange 6 is formed by injecting a potting material under pressure, that is, a production method of glue filling and sealing.

[0037] Furthermore, after step S30, the following is further included: step S301, the step of installing a ventilation and drainage component in the protective body p. The ventilation and drainage component 9 includes a temperature and humidity sensor, a water intrusion sensor, a video monitoring system, etc., which can realize intelligent control of the fan and the drainage pump. When necessary, the fan can be used for ventilation and heat dissipation to promote air circulation and circulation. At the same time, considering that the waterproof structure of the device may be damaged in the case of external force damage, the system is equipped with a water immersion sensor and a drainage pump. In the case of water ingress, an alarm and drainage can be performed to ensure the normal operation of the equipment.

[0038] like Figure 3-Figure 4 The figure shows the first embodiment of the ring main unit protection device of the present invention.

[0039] The ring main unit protection device in this embodiment includes: a flexible waterproof membrane 1 that can be folded from four sides to form an assembly fold t, and a frame 2, an inner protection plate 3, an outer protection plate 4 and a side protection plate 5 that are adapted to the size of the assembly fold t.

[0040] In specific implementation, the flexible waterproof membrane 1 is formed by heating and pressurizing a composite PVC calendering membrane on both sides of a layer of high-strength polyester or nylon. The flexible waterproof membrane 1 has a strong structure, is non-flammable, has high strength, is cold-resistant and high-temperature-resistant, and has excellent stability. In the actual design and production process, the dimensions of the bottom of the ring main unit and the bottom of the outer box must first be measured and mapped, while considering the side protection height, and then the area and size of the waterproof membrane and the location of the cable entry and exit holes must be determined.

[0041] By folding an assembly fold t on the flexible waterproof membrane 1, it is easier to configure the sizes of the frame 2, the inner protective plate 3, the outer protective plate 4 and the side protective plate 5, making the assembly faster.

[0042] The frame 2 is assembled from rigid materials. The assembled frame 2 is in a cubic shape. Specifically, it can be made of aluminum alloy. The frame 2 can be laid flat and opened from four sides. In this way, the ring network cabinet protection device can also be laid flat and opened from four sides, which is convenient for the opening and closing of the door of the ring network cabinet 8 and easy for inspection and maintenance. During implementation, the corresponding frame 2 can be designed and manufactured according to the required protection height and bottom area of ​​the ring network cabinet, so as to meet the strength requirements under a certain water depth.

[0043] The outer protective plate 4 and the inner protective plate 3 are plate-shaped and made of polymer materials. The outer protective plate 4 is assembled on the top of the cable trench of the ring main unit, the flexible waterproof membrane 1 is laid on the outer protective plate 4, and the inner protective plate 3 is laid on the middle part of the flexible waterproof membrane 1. The inner protective plate 3 presses the middle part of the flexible waterproof membrane 1 against the outer protective plate 4.

[0044] Preferably, hinges are installed between the frame 2 and the inner protective plate 3, so that the frame 2 can be laid flat and opened from four sides, which is convenient for quick installation on site and prevents wear and damage.

[0045] It can be understood that when the outer protective plate 4 is installed, the fixing bolts with the bottom of the ring network cabinet outer box are eliminated, thereby reducing the openings on the bottom flexible waterproof membrane 1, and a rigid connection can be made between the inner protective plate 3 and the frame 2 and the outer wall of the ring network cabinet 8, thereby realizing a non-penetrating assembly fixing method for the ring network cabinet 8.

[0046] The side protection plate 5 is made of polymer material and can be detachably connected to the frame 2. During implementation, the flexible waterproof membrane 1 is folded according to the assembly fold t, and the side protection plate 5 is connected to the frame 2. The side protection plate 5 presses the four sides of the flexible waterproof membrane 1 against the outside of the frame 2. The flexible waterproof membrane 1 is sandwiched between the protective side plate 5 and the frame 2 and the inner protection plate 3 and the outer protection plate 4, respectively, to form a protective body p that can be laid flat and opened on all four sides.

[0047] Preferably, hinges are installed between the side protection plates 5 and the outer protection plates 4, so that the protection body p can be laid flat and opened from four sides, which is convenient for quick installation on site and prevents wear and damage.

[0048] Furthermore, a waterproof flange 6 is provided at the bottom of the protective body p, and the cable 81 of the ring main unit 8 is sealed by glue after passing through the waterproof flange 6. In this embodiment, the waterproof flange 6 is a watertight cable-passing flange with high watertightness and a solid structure, which can be firmly assembled and can maintain watertightness under the pressure of a certain water depth.

[0049] Preferably, the waterproof flange 6 is formed by injecting a potting material under pressure, that is, a production method of glue potting and sealing.

[0050] Furthermore, a ventilation and drainage component 9 is installed in the protective body p. The ventilation and drainage component 9 includes temperature and humidity sensors, water intrusion sensors, video monitoring, etc. in specific implementation, which can realize intelligent control of the fan and drainage pump. When necessary, the fan can be used for ventilation and heat dissipation to promote air circulation and circulation. At the same time, considering that the waterproof structure of the device may be damaged in the case of external force damage, the system is equipped with a water immersion sensor and a drainage pump. In the case of water ingress, an alarm and drainage can be performed to ensure the normal operation of the equipment.

[0051] In the specific implementation of the ring main unit protection device in this embodiment, the outer protection plate 4 is assembled on the top of the ring main unit cable trench, the flexible waterproof membrane 1 is laid on the outer protection plate 4, the inner protection plate 3 is laid on the middle part of the flexible waterproof membrane 1, and the middle part of the flexible waterproof membrane 1 is pressed against the outer protection plate 4;

[0052] The flexible waterproof membrane 1 is folded according to the assembly crease t, and the side protective plates 5 are connected to the frame 2. The side protective plates 5 press the four sides of the flexible waterproof membrane 1 against the outside of the frame 2. The flexible waterproof membrane 1 is respectively sandwiched between the protective side plates 5 and the frame 2 and the inner protective plates 3 and the outer protective plates 4 to form a protective body p that can be laid flat and opened on all four sides. The protective body p can achieve reliable flooding, moisture-proof, and small animal invasion-proof effects at a relatively low cost without making any changes to the internal and external structures and assembly methods of the ring network cabinet 8; it can ensure the safe operation of equipment in the rainy season and typhoon season, greatly reduce the risk of power outages caused by waterlogging in urban areas, greatly reduce power outage losses, and reduce disaster relief and emergency repair costs.

[0053] The ring network cabinet protection method and device of the present invention have the following beneficial effects: a whole seamless flexible waterproof membrane is folded from four sides to form an assembly crease, and a frame, an inner protective plate, an outer protective plate and a side protective plate whose sizes are compatible with the assembly crease are configured according to the size of the assembly crease; the outer protective plate is assembled on the top of the cable trench of the ring network cabinet, the flexible waterproof membrane is laid on the outer protective plate, and the inner protective plate and the frame are sequentially installed on the flexible waterproof membrane according to the trace of the assembly crease; the flexible waterproof membrane is folded again according to the assembly crease, and the side protective plates are installed after it is covered on the outside of the frame, and the flexible waterproof membrane is respectively sandwiched between the protective side plates and the frame and the inner protective plate and the outer protective plate to form a protective body that can be laid flat and opened on all sides, which can realize the floodproofing of the ring network cabinet at a relatively low cost without changing the outer box structure, the installation method and the cabinet body; the structure is reasonable and easy to construct and install.

Claims

1. A ring main unit protection method, characterized in that: The following steps are involved: Folding the entire seamless flexible waterproof membrane from four sides to form an assembly crease, and configuring a frame, an inner protective plate, an outer protective plate and a side protective plate whose sizes are adapted to the assembly crease according to the size of the assembly crease; Assemble the outer protective plate on the top of the cable trench of the ring main unit, lay the flexible waterproof membrane on the outer protective plate, and sequentially install the inner protective plate and the frame on the flexible waterproof membrane according to the traces of the assembly creases; The flexible waterproof membrane is folded again according to the assembly crease, and the flexible waterproof membrane is covered on the outside of the frame and then the side protection plates are installed. The flexible waterproof membrane is respectively sandwiched between the protection side plates and the frame and between the inner protection plate and the outer protection plate to form a protection body that can be laid flat and opened on all four sides; A glue-filled sealing component for the cables of the ring network cabinet to pass through is provided at corresponding positions of the inner protective plate, the flexible waterproof membrane and the outer protective plate.

2. The ring main unit protection method according to claim 1, characterized in that: Also includes: The step of respectively installing hinges on the frame and the inner protective plate and the side protective plate and the outer protective plate.

3. The ring main unit protection method according to claim 1, characterized in that: After the step of forming the protective body that can be laid flat and opened on four sides, the method further includes the step of installing ventilation and drainage components in the protective body.

4. The ring main unit protection method according to claim 1, characterized in that: The step of providing a glue-filling sealing assembly for the ring network cabinet cable to pass through at positions where the inner protective plate, the flexible waterproof membrane and the outer protective plate are adapted to correspond to each other includes: A waterproof flange is arranged at the bottom of the protective body, and the cables of the ring network cabinet pass through the waterproof flange and then perform glue sealing.

5. A ring main unit protection device, characterized in that: include: A flexible waterproof membrane that can be folded from four sides to form an assembly fold, and a frame, an inner protective plate, an outer protective plate and a side protective plate that are adapted to the size of the assembly fold; The outer protective plate is mounted on the top of the cable trench of the ring network cabinet, the flexible waterproof membrane is laid on the outer protective plate, the inner protective plate is laid in the middle of the flexible waterproof membrane, and the middle of the flexible waterproof membrane is pressed against the outer protective plate; The flexible waterproof membrane is folded along the assembly crease, the side protective plates are connected to the frame, the side protective plates press the four sides of the flexible waterproof membrane against the outside of the frame, and the flexible waterproof membrane is sandwiched between the protective side plates and the frame and the inner protective plates and the outer protective plates, respectively, to form a protective body that can be laid flat and opened on all four sides.

6. The ring main unit protection device according to claim 5, characterized in that: The flexible waterproof membrane is formed by heating and pressurizing a layer of high-strength polyester or nylon and compounding it with a PVC calendering membrane on both sides; the frame can be laid flat and opened from four sides, and the frame is made of aluminum alloy material.

7. The ring main unit protection device according to claim 6, characterized in that: A hinge is installed between the frame and the inner protective plate, and a hinge is installed between the side protective plate and the outer protective plate.

8. The ring main unit protection device according to claim 5, characterized in that: A waterproof flange is arranged at the bottom of the protective body, and the cables of the ring network cabinet are passed through the waterproof flange and then sealed with glue.

9. The ring main unit protection device according to claim 5, characterized in that: A ventilation and drainage component is arranged in the protective body.

10. The ring main unit protection device according to claim 5, characterized in that: The inner protective plate and the frame are rigidly connected to the outer wall of the ring network cabinet.

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