Intelligent anti-explosion blanket

Abstract

The utility model relates to an intelligent explosion-proof blanket, which is matched with a high-voltage cable joint for use, and comprises a blanket body which comprises an outer protective layer and an inner protective layer which are made of explosion-proof fabrics, and the outer protective layer and the inner protective layer are connected and define an interlayer cavity; a flame-retardant fireproof layer, an insulating waterproof layer, a temperature measurement grid layer and a stainless steel conductive layer are sequentially stacked and arranged between the interlayer cavities from inside to outside; one end of the grounding wire is connected with the stainless steel conductive layer so as to lead current into the ground when the high-voltage cable joint leaks electricity; and the monitoring alarm device is connected with the temperature measurement grid layer through a temperature measurement line to monitor the temperature change of the blanket body, and is connected with the ground wire through an impact circuit detection line to monitor the leakage current of the ground wire. The high-voltage cable has excellent waterproof, fireproof and explosion-proof effects, and threats to the high-voltage cable and operators are reduced; and an alarm is given to the monitoring terminal when the high-voltage cable joint is abnormally changed, so that an abnormal point is accurately and quickly positioned and quickly processed.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof blankets, in particular to an intelligent explosion-proof blanket. Background Art

[0002] Wires and cables are the carriers of power transmission. The extension and wider coverage of distribution networks not only bring convenience to electricity use, but also bring about problems with the stability and reliability of the power grid. Among them, the fire and explosion prevention of the cable intermediate joints are the weak links in the cable lines. Once the cable intermediate joint explodes, the destructive force generated will not only damage the cable itself, but also affect the cables around the cable well (pipeline corridor), and may even cause secondary accidents, causing large-scale damage to the surrounding cable lines, power facilities and personnel.

[0003] At present, there are two main solutions: the first is the explosion-proof box, and the other is the explosion-proof blanket. Among them, the main disadvantage of the explosion-proof box is that it is non-flexible. When the middle joint of the cable is in a curved shape, the explosion-proof box cannot be effectively adapted; the practicality is not as good as the explosion-proof blanket; the existing explosion-proof blanket mainly combines the explosion-proof layer, thin stainless steel layer, high-temperature resistant material layer, etc. as the inner layer, and the outer side of the inner layer is coated with fireproof material. Various material layers are tightly stacked together, but it only has the function of organizing fire prevention and explosion resistance, but does not have the ability of fault monitoring and fault warning. To this end, we proposed an intelligent explosion-proof blanket. Utility Model Content

[0004] The embodiment of the present application provides an intelligent explosion-proof blanket to at least solve the problem that the existing explosion-proof blankets in the prior art only have the functions of organizing fire prevention and explosion resistance, but do not have the ability of fault monitoring and fault warning.

[0005] The embodiment of the present application provides an intelligent explosion-proof blanket, which is used in conjunction with a high-voltage cable connector, including:

[0006] The blanket body comprises an outer protective layer and an inner protective layer made of explosion-proof fabric, wherein the outer protective layer and the inner protective layer are connected and enclosed to form an interlayer cavity; a flame retardant fireproof layer, an insulating waterproof layer, a temperature measuring grid layer and a stainless steel conductive layer are sequentially stacked from inside to outside between the interlayer cavities;

[0007] A grounding wire, one end of which is connected to the stainless steel conductive layer to introduce current into the ground when the high-voltage cable joint leaks;

[0008] A monitoring alarm device is connected to the temperature measuring grid layer through a temperature measuring line to monitor the temperature change of the blanket body, and is connected to the grounding line through an impact circuit detection line to monitor the leakage current of the grounding line.

[0009] In some embodiments, a high-frequency loop is sleeved on the ground wire, and the impact circuit detection line is connected to the high-frequency loop to reduce the monitored radiation interference.

[0010] In some embodiments, the monitoring and alarm device includes a box body, which is connected to the high-voltage cable corresponding to the high-voltage cable connector; and placed in the box body: a temperature monitoring module, used to monitor the temperature of the temperature measuring grid layer; an impact circuit monitoring module, used to monitor the current of the grounding wire; and a vibration monitoring module, used to monitor the displacement vibration of the high-voltage cable.

[0011] In some embodiments, the monitoring and alarm device also includes: a GPRS communication module, which is placed in the box body and wirelessly connected to a monitoring terminal, and is used to alarm the monitoring terminal when one or more combinations of the temperature, current or displacement vibration of the intelligent explosion-proof blanket undergo abnormal changes.

[0012] In some of the embodiments, the temperature measurement grid layer includes a plurality of grid lines distributed in a matrix, and each intersection point of the plurality of grid lines is a temperature measurement point.

[0013] In some of the embodiments, a binding piece is further included, and the binding piece is arranged on the outside of the blanket body to fix the blanket body when the blanket body wraps the high-voltage cable joint.

[0014] In some of the embodiments, the strapping member is a Velcro strap or a self-locking nylon strap.

[0015] Compared with the related art, the intelligent explosion-proof blanket provided in the embodiment of the present application has at least the following technical effects:

[0016] By wrapping the blanket around the high-voltage cable joint, it has excellent waterproof, fireproof and explosion-proof effects, reducing the threat to high-voltage cables and operators; and through the monitoring alarm device, it can effectively detect abnormal changes in one or several combinations of temperature, current or displacement vibration of the intelligent explosion-proof blanket, and quickly alarm the monitoring terminal when abnormal changes occur at the high-voltage cable joint. In this way, the abnormal points can be accurately monitored and quickly located, which is convenient for power system personnel to quickly handle.

[0017] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The figure is a schematic diagram of the structure of an intelligent explosion-proof blanket according to an exemplary embodiment.

[0020] Figure 2 is an exploded view of a carpet structure according to an exemplary embodiment.

[0021] Figure 3 It is a schematic diagram of a temperature measurement grid layer structure according to an exemplary embodiment.

[0022] Description of reference numerals: Blanket body 10: outer protective layer 101, stainless steel conductive layer 102, temperature measuring grid layer 103, insulating and waterproof layer 104, flame retardant and fireproof layer 105, inner protective layer 106;

[0023] Monitoring and alarm device 20: temperature measuring line 201, impact circuit detection line 202, high frequency loop 203;

[0024] Ground wire 30. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the relevant technology, there are two main fireproof and explosion-proof solutions for cable intermediate joints: the first is an explosion-proof box, and the other is an explosion-proof blanket. Among them, the main disadvantage of the explosion-proof box is that it is non-flexible. When the cable intermediate joint is in a curved shape, the explosion-proof box cannot be effectively adapted; the practicality is not as good as the explosion-proof blanket; the existing explosion-proof blanket mainly combines the explosion-proof layer, thin stainless steel layer, high-temperature resistant material layer, etc. as the inner layer, and the outer side of the inner layer is coated with fireproof material. Various material layers are tightly stacked together, but it only has the function of organizing fire prevention and explosion resistance, and does not have the ability of fault monitoring and fault warning.

[0029] Based on the above situation, an embodiment of the utility model provides an intelligent explosion-proof blanket, which is described in detail below in conjunction with specific embodiments and drawings.

[0030] Example 1

[0031] The embodiment of the utility model provides an intelligent explosion-proof blanket. Figure 1 The figure is a schematic diagram of the structure of an intelligent explosion-proof blanket according to an exemplary embodiment. Figure 2 FIG. 1 is an exploded view of a carpet structure according to an exemplary embodiment. Figure 1-2 As shown, the intelligent explosion-proof blanket is used in conjunction with a high-voltage cable connector. Specifically, the intelligent explosion-proof blanket is wrapped around the high-voltage cable connector for protection, and includes:

[0032] The blanket body 10 is made of a flexible material and wraps the high-voltage cable joint. It includes an outer protective layer 101 and an inner protective layer 106 made of explosion-proof fabric. The outer protective layer 101 and the inner protective layer 106 are connected and enclosed to form a sandwich cavity. In this embodiment, the explosion-proof fabric is made of Kevlar fiber, which has good heat resistance, flame retardancy, antistatic properties, high strength, high wear resistance, high tear resistance and moisture resistance. The sandwich cavity is stacked from the inside to the outside in sequence:

[0033] The flame retardant and fireproof layer 105, in this embodiment, is made of ceramic high temperature cloth, which has the characteristics of high temperature resistance, can physically block oxygen and prevent the spread of combustion;

[0034] Insulating waterproof layer 104, in this embodiment, the insulating waterproof layer 104 is one or a combination of PVC coated cloth, PU coated cloth and PTFE coated cloth, and has the characteristics of stable performance, waterproof, mildew-proof, aging-resistant, etc.;

[0035] Temperature measurement grid layer 103, Figure 3 FIG. 1 is a schematic diagram of a temperature measurement grid layer structure according to an exemplary embodiment. Figure 3 As shown, in this embodiment, the temperature measurement grid layer 103 includes a plurality of grid lines distributed in a matrix, and each intersection of the plurality of grid lines is a temperature measurement point, which can quickly and accurately obtain the temperature change at the high-voltage cable joint wrapped in the blanket body 10;

[0036] And, the stainless steel conductive layer 102. In this embodiment, the stainless steel conductive layer 102 is a thin stainless steel sheet, the material of which has a certain winding flexibility. It is arranged in the blanket body 10 and can be wound around the high-voltage cable connector. It has both high mechanical strength and good high temperature resistance. It can withstand impact force when an explosion occurs, play an excellent explosion-proof role, and reduce the threat of explosion to high-voltage cables and operators.

[0037] A grounding wire 30, one end of which is connected to the stainless steel conductive layer 102 to introduce current into the ground when the high-voltage cable joint leaks;

[0038] The monitoring alarm device 20 is connected to the temperature measuring grid layer 103 via a temperature measuring line 201 to monitor the temperature change of the blanket body 10 , and is connected to the grounding line 30 via an impact circuit detection line 202 to monitor the leakage current of the grounding line 30 .

[0039] A binding piece is also included, which is arranged on the outside of the blanket body 10 to fix the blanket body 10 when the blanket body 10 wraps the high-voltage cable connector; in this embodiment, the binding piece is a Velcro binding tape or a self-locking nylon binding tape.

[0040] In this embodiment, the monitoring alarm device 20 includes a box body, which is connected to the high-voltage cable corresponding to the high-voltage cable connector. It can be understood that the box body is fixed to the high-voltage cable corresponding to the monitored high-voltage cable connector by a Velcro-type strapping tape or a self-locking nylon strapping tape; and placed in the box body: a temperature monitoring module, which is used to monitor the temperature of the temperature measuring grid layer 103 and send an alarm signal when the temperature of the temperature measuring grid layer 103 exceeds a preset temperature threshold; an impact circuit monitoring module, which is used to monitor the current of the grounding wire 30 and send an alarm signal when the current of the grounding wire 30 exceeds a preset current threshold; a vibration monitoring module , used to monitor the displacement vibration of the high-voltage cable, and send out an alarm signal when the displacement vibration of the box body exceeds a preset displacement vibration threshold; a GPRS communication module, which is wirelessly connected to an external monitoring terminal, is used to alarm the monitoring terminal and send the precise location of the fault point when one or more combinations of the temperature, current or displacement vibration of the intelligent explosion-proof blanket undergo abnormal changes. It can be understood that the box body will have a built-in PLC control circuit or a single-chip microcomputer to monitor and control the above-mentioned temperature monitoring module, impact circuit monitoring module, vibration monitoring module and GPRS communication module. The PLC control circuit or the single-chip microcomputer are both existing technologies and will not be repeated here.

[0041] In the technical solution of the above embodiment, refer to the attached Figure 1-3 , the blanket body 10 of this embodiment is wound and wrapped around the high-voltage cable joint, the inner protective layer 106 is located on the side close to the high-voltage cable joint and wrapped inside, and the outer protective layer 101 is wrapped on the outside and fixed by Velcro-type strapping tape or self-locking nylon strapping tape, which plays an excellent waterproof, fireproof and explosion-proof role, reducing the threat to high-voltage cables and operators; then the box body of the monitoring alarm device 20 is fixed to the high-voltage cable corresponding to the high-voltage cable joint by Velcro-type strapping tape or self-locking nylon strapping tape, and the grounding wire 30 introduces current into the ground when the high-voltage cable joint leaks electricity, and the monitoring alarm device 20 can effectively detect abnormal changes in one or several combinations of temperature, current or displacement vibration of the intelligent explosion-proof blanket, and quickly alarm the monitoring terminal when abnormal changes occur, accurately monitor and quickly locate abnormal points, which is convenient for the monitoring terminal to quickly process.

[0042] Optionally, Figure 1 FIG. 1 is a schematic diagram of the structure of an intelligent explosion-proof blanket according to an exemplary embodiment. Figure 1 A high-frequency loop 203 is sleeved on the grounding wire 30, and the impact circuit detection line 202 is connected to the high-frequency loop 203 to reduce the radiation interference of the monitoring.

[0043] In summary, the intelligent explosion-proof blanket provided by the embodiment of the utility model, through the blanket body 10 wrapped around the high-voltage cable joint, plays an excellent waterproof, fireproof and explosion-proof role, reducing the threat to the high-voltage cable and operators; and through the monitoring alarm device 20, it can effectively detect abnormal changes in one or several combinations of temperature, current or displacement vibration of the intelligent explosion-proof blanket, and quickly alarm the monitoring terminal when abnormal changes occur at the high-voltage cable joint. In this way, accurate monitoring and rapid positioning of abnormal points are achieved, which facilitates rapid processing by the monitoring terminal.

[0044] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An intelligent explosion-proof blanket, characterized in that: It is used with a high voltage cable connector, including: The blanket body comprises an outer protective layer and an inner protective layer made of explosion-proof fabric, wherein the outer protective layer and the inner protective layer are connected and enclosed to form an interlayer cavity; a flame retardant fireproof layer, an insulating waterproof layer, a temperature measuring grid layer and a stainless steel conductive layer are sequentially stacked from inside to outside between the interlayer cavities; A grounding wire, one end of which is connected to the stainless steel conductive layer; The monitoring alarm device is connected to the temperature measuring grid layer through a temperature measuring line and connected to the grounding line through an impact circuit detection line.

2. The intelligent explosion-proof blanket according to claim 1, characterized in that: A high-frequency loop is sleeved on the grounding wire, and the impact circuit detection wire is connected to the high-frequency loop.

3. The intelligent explosion-proof blanket according to claim 1, characterized in that: The monitoring alarm device comprises a box body, which is connected to the high-voltage cable corresponding to the high-voltage cable connector; and placed in the box body: A temperature monitoring module, connected to the temperature measuring line, for monitoring the temperature of the temperature measuring grid layer; An impact circuit monitoring module, connected to the impact circuit detection line, and used to monitor the current of the ground line; The vibration monitoring module is used to monitor the displacement vibration of the high voltage cable.

4. The intelligent explosion-proof blanket according to claim 3, characterized in that: The monitoring alarm device also includes: The GPRS communication module is placed in the box body and is wirelessly connected to the monitoring terminal.

5. The intelligent explosion-proof blanket according to claim 1, characterized in that: The temperature measurement grid layer includes a plurality of grid lines distributed in a matrix, and each intersection point of the plurality of grid lines is a temperature measurement point.

6. The intelligent explosion-proof blanket according to claim 1, characterized in that: A binding piece is also included, and the binding piece is arranged on the outside of the blanket body to fix the blanket body when the blanket body wraps the high-voltage cable joint.

7. The intelligent explosion-proof blanket according to claim 6, characterized in that: The strapping piece is a Velcro strapping tape or a self-locking nylon strapping tape.

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