CN216598007U - A non-ann's type instrument earthing device for explosion-proof region of petrochemical industry enterprise - Google Patents
A non-ann's type instrument earthing device for explosion-proof region of petrochemical industry enterprise Download PDFInfo
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- CN216598007U CN216598007U CN202123294948.7U CN202123294948U CN216598007U CN 216598007 U CN216598007 U CN 216598007U CN 202123294948 U CN202123294948 U CN 202123294948U CN 216598007 U CN216598007 U CN 216598007U
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Abstract
The utility model relates to a non-intrinsic safe type instrument earthing device for petrochemical enterprise explosion-proof area. This non-intrinsic safety type instrument grounding device, including instrument case, metal testing bridge, cable protection pipe, first earth connection, second earth connection, instrument case sets up outside non-intrinsic safety type instrument, be equipped with instrument ground terminal on the instrument case, metal testing bridge reliable ground, the cable protection pipe is docked the butt joint by one section metal protection pipe and flexible hose and is constituteed, metal protection pipe and metal testing bridge reliable connection, first earth connection is connected metal protection pipe and metal testing bridge, the second earth connection is reliably connected ground terminal and metal protection pipe. Above-mentioned non-this ampere of type instrument earthing device can realize the reliable ground connection of the non-this ampere of instrument of explosion-proof area, need not to use in the work progress and weld and can be under construction, greatly reduced construction safety risk, this kind of non-this ampere of type instrument earthing device's construction cost is low in addition, and the installation effectiveness is fast, walks the line clear.
Description
Technical Field
The utility model relates to an explosion-proof regional non-intrinsic safety type instrument installation technical field of petrochemical enterprise specifically is a non-intrinsic safety type instrument earthing device for explosion-proof region of petrochemical enterprise.
Background
At present, a non-intrinsic safety type instrument in an explosion-proof area of a petrochemical enterprise is generally grounded by laying a grounding flat steel mesh on the ground and leading a grounding wire to a shell grounding fixing bolt of each explosion-proof instrument from the position, close to the instrument, of the grounding flat steel.
The existing grounding mode has the following defects: firstly, the distribution area of the instrument is wide, the range of the flat steel to be laid is wide, when the flat steel leads the grounding wire to the instrument from the ground, the grounding cables connected to the instrument at some positions are difficult to avoid the tripping of the feet when the personnel patrol or operate, and the safety risk exists; secondly, the cost of materials for laying the grounding flat steel on a large scale is high; thirdly, the workload of laying the grounding flat steel is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a non-intrinsic safe type instrument earthing device for petrochemical enterprise explosion-proof area to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a non-ann's type instrument earthing device for explosion-proof region of petrochemical enterprise which characterized in that: including instrument case, metal crane span structure, cable protection pipe, first earth connection, second earth connection, instrument case sets up outside non-this ampere of type instrument, be equipped with instrument ground terminal on the instrument case, the metal crane span structure reliably grounds, the cable protection pipe comprises one section metal protection pipe and flexible hose butt joint, metal protection pipe and metal crane span structure reliably are connected, first earth connection is connected metal protection pipe and metal crane span structure, the second earth connection is reliably connected ground terminal and metal protection pipe.
Furthermore, the metal bridge is a groove type or a tray type bridge.
Furthermore, the length of the metal bridge frame is less than 30 meters and is used as a reliable grounding electrode.
Further, the first ground wire and the second ground wire are 6-square yellow-green ground wires.
Further, the length of the first grounding wire is less than 100 mm.
Furthermore, the first grounding wire and the second grounding wire are fixed on the cable protection pipe by nylon ties.
Furthermore, be equipped with first metal clamp on the metal protection pipe, first metal clamp is fixed in the one end that metal protection pipe and metal crane span structure are connected for reliably be connected with first earth connection.
Furthermore, a second metal hoop is arranged on the metal protection pipe, and the second metal hoop is fixed at one end, butted and connected with the flexible hose, of the metal protection pipe and used for being reliably connected with a second grounding wire.
Further, the metal protection pipe is a galvanized pipe.
Further, the metal protection pipe and the flexible hose are connected by pipe threads.
Compared with the prior art, the utility model discloses a non-intrinsic safety type instrument earthing device for petrochemical enterprise explosion-proof area can realize the reliable ground connection of explosion-proof area non-intrinsic safety instrument, need not to use in the work progress and weld and can be under construction, greatly reduced construction safety risk, this kind of non-intrinsic safety type instrument earthing device's construction cost is low in addition, and the installation effectiveness is fast, walks the line clear.
Drawings
Fig. 1 is the utility model discloses a not intrinsic safe type instrument earthing device's for petrochemical enterprise explosion-proof zone structural schematic.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a non-intrinsic safety type instrument grounding device for an explosion-proof area of a petrochemical enterprise comprises an instrument shell 1, a metal bridge 2, a cable protection pipe 3, a first grounding wire 4 and a second grounding wire 5;
the instrument shell 1 is arranged outside the non-intrinsic safety type instrument, and an instrument grounding terminal 11 is arranged on the instrument shell;
the metal bridge frame 2 is made of square steel or tray type bridge frame with the length not more than 30 meters, so that the reliable grounding of the metal bridge frame is ensured, and the reliably grounded metal bridge frame 2 is used as a grounding electrode of an instrument needing grounding;
the cable protection tube 3 comprises a metal protection tube 31, a flexible hose 32 and a threaded tube 33, the metal protection tube 31 is a galvanized tube, one end of the metal protection tube 31 is reliably connected with the metal bridge frame 2, the other end of the metal protection tube 31 is butted with the flexible hose 32 through the threaded tube 33 to be used as a reliably grounded connector, a first metal clamp 311 and a second metal clamp 312 are arranged on the metal protection tube 31, and the first metal clamp 311 is fixed at one end, connected with the metal bridge frame 2, of the metal protection tube 31 and is used for being reliably connected with a first grounding wire 4; a second metal clip 312 is fixed to the end of the metal protection tube 31 abutting against the flexible hose 32 for reliable connection to the second ground wire 5.
The first grounding wire 4 is a 6-square yellow-green grounding wire with the length less than 100mm, and the metal protection pipe 31 is connected with the metal bridge frame 2 through the first grounding wire 4;
the second ground wire 5 is a 6-square yellow-green ground wire, and the ground terminal 11 is reliably connected to the metal protection tube 31.
The first grounding wire 5 and the second grounding wire 6 are fixed on the cable protection pipe by nylon ties.
Referring to fig. 1, the utility model discloses a non-intrinsic safety type instrument earthing device for petrochemical enterprise explosion-proof area can realize the reliable ground connection of explosion-proof area non-intrinsic safety instrument, need not to use in the work progress and weld and can be under construction, greatly reduced construction safety risk, this kind of non-intrinsic safety type instrument earthing device's construction cost is low in addition, and the installation effectiveness is fast, walks the line clear.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a non-ann's type instrument earthing device for explosion-proof region of petrochemical enterprise which characterized in that: including instrument case, metal testing bridge, cable protection pipe, first earth connection, second earth connection, instrument case sets up outside non-this ampere of type instrument, be equipped with instrument ground connection terminal on the instrument case, the metal testing bridge reliably grounds, the cable protection pipe comprises one section metal protection pipe and flexible hose butt joint, metal protection pipe and metal testing bridge are reliably connected, first earth connection is connected metal protection pipe and metal testing bridge, the second earth connection is with ground connection terminal and metal protection pipe reliable connection.
2. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the metal bridge is a groove type or tray type bridge.
3. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the length of the metal bridge is less than 30 meters and is used as a reliable grounding electrode.
4. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the first grounding wire and the second grounding wire are 6-square yellow-green grounding wires.
5. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1 or 4, wherein: the length of the first grounding wire is less than 100 mm.
6. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the first grounding wire and the second grounding wire are fixed on the cable protection pipe through nylon cable ties.
7. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the metal protection pipe is provided with a first metal hoop, and the first metal hoop is fixed at one end, connected with the metal bridge, of the metal protection pipe and used for being reliably connected with a first grounding wire.
8. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1 or 7, wherein: and a second metal hoop is arranged on the metal protection pipe, and the second metal hoop is fixed at one end, butted with the flexible hose, of the metal protection pipe and is used for being reliably connected with a second grounding wire.
9. The non-intrinsic safety type instrument grounding device for the explosion-proof area of the petrochemical enterprise according to claim 1, wherein: the metal protection pipe is a galvanized pipe.
10. A non-intrinsically safe instrument grounding device for an explosion-proof area of a petrochemical enterprise as claimed in claim 1 or 9, wherein: the metal protection pipe and the flexible hose are connected through pipe threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123294948.7U CN216598007U (en) | 2021-12-24 | 2021-12-24 | A non-ann's type instrument earthing device for explosion-proof region of petrochemical industry enterprise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123294948.7U CN216598007U (en) | 2021-12-24 | 2021-12-24 | A non-ann's type instrument earthing device for explosion-proof region of petrochemical industry enterprise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216598007U true CN216598007U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123294948.7U Active CN216598007U (en) | 2021-12-24 | 2021-12-24 | A non-ann's type instrument earthing device for explosion-proof region of petrochemical industry enterprise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216598007U (en) |
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2021
- 2021-12-24 CN CN202123294948.7U patent/CN216598007U/en active Active
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