Furnace top blow-off valve contactor control line protection device

Abstract

The utility model discloses a furnace top blow-off valve contactor control line protection device, which comprises a rubber strip and a plurality of shaping elastic sheets uniformly distributed in the rubber strip along the length direction of the rubber strip, a shielding braid layer is also arranged in the rubber strip above the shaping elastic sheets, a plurality of seat holes are uniformly distributed on the top surface of the rubber strip along the length direction, and the shielding braid layer is arranged in the rubber strip. A conductive screw is detachably arranged in one or part of the seat holes, and the lower end of the conductive screw is electrically connected with the shielding braid layer; the device can be directly and additionally arranged on an old-fashioned shielding-layer-free and long control line represented by a furnace top blow-off valve control line along the way, induced electricity is prevented from influencing the safety of surrounding equipment and personnel, and the device has the outstanding advantages of being easy to install, free of long-time shutdown and production, and particularly suitable for upgrading and reconstruction of equipment of existing iron and steel enterprises.

Description

Technical Field

[0001] The utility model relates to the field of wire harness induction electrical processing equipment, in particular to a control line protection device for a furnace top relief valve contactor. Background Art

[0002] A top relief valve is provided on the top of the blast furnace, which includes a valve body, a valve cover and a drive device. Its function is to release excess pressure and ensure safe relief. Its control circuit adopts standard AC voltage and the line extends to the control cabinet for a long distance. According to physical knowledge, when the cable line in the AC 110V or 220V control circuit is too long, a higher induced voltage will appear in the line. The higher induced voltage will affect the return of the relay, thereby causing the top relief valve contactor to malfunction. In addition, some steel enterprises were built earlier, and the early construction was not standardized and the years were long. There are many lines, long lines and the control lines are old-fashioned unshielded lines. As a result, the control cable induced electricity is serious. According to on-site measurements, the induced voltage can reach more than 100 volts. If all the lines are replaced, there will be problems such as shutdown losses and transformation costs. Therefore, a protection device suitable for the transformation of old equipment with good effects and low costs is proposed. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the present invention is to provide a furnace top relief valve contactor control line protection device, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The furnace top relief valve contactor control line protection device includes a rubber strip and a plurality of shaped elastic sheets evenly distributed in the rubber strip along the length direction of the rubber strip. A shielding braided layer is also provided in the rubber strip above the shaped elastic sheets. A plurality of seat holes are evenly distributed along the length direction on the top surface of the rubber strip. A conductive screw is detachably provided in one or part of the seat holes, and the lower end of the conductive screw is electrically connected to the shielding braided layer.

[0006] Furthermore, the cross section of the shaping elastic sheet is an arc shape with the opening facing upward.

[0007] Furthermore, the shaping elastic sheet is made of spring steel.

[0008] Furthermore, the shielding braided layer is made of copper.

[0009] Furthermore, a conductive internal thread seat is fixed in the seat hole, the lower end of the conductive internal thread seat is pressed against the shielding braided layer, and the conductive screw is screwed into the conductive internal thread seat.

[0010] Furthermore, the conductive internal thread seat and the conductive screw are both made of copper.

[0011] The utility model has the following beneficial technical effects:

[0012] The utility model can be directly installed along the way on old-fashioned control lines without shielding layers and with long lengths, such as the control line of the furnace top relief valve, to avoid the influence of induced electricity on the safety of surrounding equipment and personnel. The outstanding advantage of this application is that it is easy to install and does not require long-term shutdown, which is particularly suitable for the upgrade and transformation of existing steel enterprise equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A top view of an embodiment of the present invention in a state ready for installation;

[0014] Figure 2 for Figure 1 A-A sectional view in the figure;

[0015] Figure 3 Schematic diagram of the cross section of the shaping elastic sheet in the embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1-3As shown, the furnace top relief valve contactor control line protection device described in this embodiment includes a rubber strip 1 and a plurality of shaped elastic sheets 2 uniformly distributed in the rubber strip 1 along the length direction of the rubber strip 1, and the spacing between adjacent shaped elastic sheets 2 is 10cm-20cm. A shielding braided layer 3 is also provided in the rubber strip 1 above the shaped elastic sheet 2. The material of the shielding braided layer 3 is copper, that is, it is woven from copper wire. The left and right sides of the shielding braided layer 3 extend close to the bottom surface of the rubber strip 1 to ensure that the left and right sides of the shielding braided layer 3 can have overlapping projection areas after the rubber strip 1 is bent, thereby avoiding shielding failure; a plurality of seat holes 4 are uniformly distributed on the top surface of the rubber strip 1 along the length direction, and the spacing between adjacent seat holes 4 is 2m-2.5m, and a conductive screw 5 is detachably provided in one or part of the seat holes 4, and the lower end of the conductive screw 5 is electrically connected to the shielding braided layer 3.

[0019] The cross section of the above-mentioned shaping elastic piece 2 is an arc shape with the opening facing upward, which is easy to maintain the shape of the rubber strip 1 and convenient to install. The material of the shaping elastic piece 2 is spring steel.

[0020] A conductive internal thread seat 6 is fixed in the seat hole 4, the lower end of the conductive internal thread seat 6 is pressed against the shielding braided layer 3, and the conductive screw 5 is screwed into the conductive internal thread seat 6. The conductive internal thread seat 6 and the conductive screw 5 are both made of copper, and a copper gasket 7 is also sleeved on the conductive screw 5.

[0021] The working principle of this embodiment is:

[0022] During installation, the rubber strip 1 is placed parallel to the furnace top relief valve contactor control line 8, and the shaped elastic sheets 2 are bent one by one. The shaped elastic sheets 2 drive the rubber strip 1 to wrap the furnace top relief valve contactor control line 8. The rubber strip 1 forms an approximately cylindrical shape and is coaxial with the furnace top relief valve contactor control line 8. Then, a suitable position is selected, and the grounding wire is connected to the conductive screw 5 and tightened. At this time, the installation is completed. During production operation, the induced electricity generated by the furnace top relief valve contactor control line 8 is conducted away by the shielded braided layer 3, the conductive internal thread seat 6, the conductive screw 5 and the grounding wire to prevent the induced electricity from affecting the safety of surrounding equipment and personnel. The outstanding advantage of this embodiment is that it is simple to install and does not require long-term shutdown, and is particularly suitable for upgrading and transformation of existing steel enterprise equipment.

[0023] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. The furnace top relief valve contactor control line protection device is characterized by: It includes a rubber strip and a plurality of shaping elastic sheets evenly distributed in the rubber strip along the length direction of the rubber strip. A shielding braided layer is also provided in the rubber strip above the shaping elastic sheet. A plurality of seat holes are evenly distributed along the length direction on the top surface of the rubber strip. A conductive screw is detachably provided in one or part of the seat holes, and the lower end of the conductive screw is electrically connected to the shielding braided layer.

2. The furnace top relief valve contactor control line protection device according to claim 1, characterized in that: The cross section of the shaping elastic piece is an arc shape with the opening upward.

3. The furnace top relief valve contactor control line protection device according to claim 2, characterized in that: The material of the shaping elastic sheet is spring steel.

4. The furnace top relief valve contactor control line protection device according to claim 1, characterized in that: The shielding braided layer is made of copper.

5. The furnace top relief valve contactor control line protection device according to claim 1, characterized in that: A conductive internal thread seat is fixed in the seat hole, the lower end of the conductive internal thread seat is pressed against the shielding braided layer, and the conductive screw is screwed into the conductive internal thread seat.

6. The furnace top relief valve contactor control line protection device according to claim 5, characterized in that: The conductive internal thread seat and the conductive screw are both made of copper.

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