Illumination explosion-proof system in dangerous area of ship

Abstract

The invention provides an illumination explosion-proof system in a ship dangerous area, a safe area is separated from the dangerous area through a bulkhead, the illumination explosion-proof system comprises a steel pipe, the steel pipe is located in the dangerous area, the first end of the steel pipe penetrates through the bulkhead, and the outer wall of the first end of the steel pipe is connected with the bulkhead in a sealed mode; the flexible connecting pipe is located in the dangerous area, and the first end of the flexible connecting pipe is communicated with the second end of the steel pipe; the lighting equipment is located in the dangerous area, and a cable pipe opening of the lighting equipment is communicated with the second end of the flexible connecting pipe; and a cable for supplying power to the lighting equipment sequentially passes through the flexible connecting pipe and the steel pipe and is introduced into a safe area. According to the illumination explosion-proof system in the dangerous area of the ship, the time consumed by design can be shortened, and the site construction intensity can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of explosion-proof equipment for ship lighting systems, and particularly relates to an explosion-proof lighting system in dangerous areas of ships. Background Art

[0002] Explosion-proof lighting refers to lamps used in dangerous places where flammable gases and dust exist, as well as in dangerous areas of ships, which can prevent electric arcs, sparks and high temperatures that may be generated inside the lamp from igniting flammable gases and dust in the surrounding environment, thus meeting the explosion-proof requirements. There are mainly explosion-proof lamps of flameproof type, safety type, mobile type, etc.

[0003] Currently, when designing lighting in dangerous areas of ships, there are various explosion-proof methods. For the use of explosion-proof hoses, the explosion-proof purpose is often achieved by purchasing and using explosion-proof hoses from equipment manufacturers. When the lighting equipment is paired with other explosion-proof hoses, the interfaces are difficult to standardize and there is no unified standard. It becomes very passive when communicating with lighting design manufacturers and explosion-proof hose manufacturers, and the design scheme often needs to be finalized after several rounds of communication. A large amount of energy and time are spent in design, procurement and construction, increasing the difficulty of construction. Summary of the Invention

[0004] An explosion-proof lighting system in a dangerous area of a ship provided by the present invention, where the safe area and the dangerous area are separated by a bulkhead, includes:

[0005] A steel pipe, which is located in the dangerous area, the first end of the steel pipe passes through the bulkhead, and the outer wall of the first end of the steel pipe is hermetically connected to the bulkhead;

[0006] A flexible connecting pipe, which is located in the dangerous area, and the first end of the flexible connecting pipe communicates with the second end of the steel pipe;

[0007] A lighting device, which is located in the dangerous area, and the cable pipe opening of the lighting device communicates with the second end of the flexible connecting pipe;

[0008] The cable for supplying power to the lighting device is introduced into the safe area through the flexible connecting pipe and the steel pipe in sequence.

[0009] Further: The first end of the steel pipe passes through the bulkhead through a sleeve.

[0010] Further: The first end of the flexible connecting pipe communicates with the second end of the steel pipe by means of threaded connection.

[0011] Further: The port of the second end of the steel pipe is external thread G1X60, and the port of the first end of the flexible connecting pipe is internal thread G1X60.

[0012] Further: The cable nozzle of the lighting device is communicated with the second end of the flexible connecting pipe through a threaded connection method.

[0013] Further: The port of the second end of the flexible connecting pipe is an internal thread G3 / 4", and the cable nozzle of the lighting device is an external thread G3 / 4".

[0014] Further: The lighting device has an explosion-proof function.

[0015] Further: The port of the second end of the steel pipe is 0.36 meters away from the cable nozzle of the lighting device.

[0016] Further: The flexible connecting pipe is a 0.5-meter stainless steel flexible connecting pipe.

[0017] Further: The steel pipe is a marine seamless steel pipe CB357-87, with material Q235A, nominal diameter DN25, and outer diameter DW34.

[0018] The beneficial effects brought by the present invention are as follows:

[0019] As can be seen from the above solution, a lighting explosion-proof system in a dangerous area of a ship provided by the present invention can not only reduce the time consumed in design but also reduce the construction intensity on site, ensuring both the lighting explosion-proof requirements in the dangerous area and the unity and aesthetics of the cable and pipeline layout in the dangerous area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It shows a schematic structural diagram of a lighting explosion-proof system in a dangerous area of a ship according to an embodiment of the present invention.

[0021] In the figure, 1 is a dangerous area; 2 is a safe area; 3 is a bulkhead; 4 is a steel pipe; 5 is a flexible connecting pipe; 6 is a lighting device; 7 is a casing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figure 1 shown, the present invention provides a lighting explosion-proof system in a dangerous area of a ship. The safe area 2 and the dangerous area 1 are separated by a bulkhead 3. The lighting explosion-proof system in the dangerous area of the ship includes:

[0024] Steel pipe 4 is located within the hazardous area 1. The first end of the steel pipe 4 passes through the bulkhead 3, and the outer wall of the first end of the steel pipe 4 is sealed to the bulkhead 3.

[0025] Flexible connecting pipe 5 is located within the hazardous area 1. The first end of the flexible connecting pipe 5 communicates with the second end of the steel pipe 4.

[0026] Lighting device 6 is located within the hazardous area 1. The cable outlet of the lighting device 6 communicates with the second end of the flexible connecting pipe 5.

[0027] The cable for powering the lighting device 6 is introduced into the safe area 2 through the flexible connecting pipe 5 and the steel pipe 4 in sequence.

[0028] Specifically, the lighting device 6 has an explosion-proof function.

[0029] Furthermore, the first end of the steel pipe 4 passes through the bulkhead 3 through a casing 7. The casing 7 can ensure the connection strength between the steel pipe 4 and the bulkhead 3 and can extend the service life. The casing 7 is a marine welded casing 7 CB / T3193 - 2015, with material Q235Q and an outer diameter DW45.

[0030] In some alternative embodiments, the first end of the flexible connecting pipe 5 communicates with the second end of the steel pipe 4 by means of a threaded connection.

[0031] The first end of the flexible connecting pipe 5 communicates with the second end of the steel pipe 4 by means of a threaded connection, which is convenient for disassembly and installation.

[0032] Specifically, the port of the second end of the steel pipe 4 has an external thread G1X60, and the port of the first end of the flexible connecting pipe 5 has an internal thread G1X60.

[0033] In some alternative embodiments, the cable outlet of the lighting device 6 communicates with the second end of the flexible connecting pipe 5 by means of a threaded connection.

[0034] The cable outlet of the lighting device 6 communicates with the second end of the flexible connecting pipe 5 by means of a threaded connection. This is convenient for disassembly and installation and facilitates the replacement of the lighting device 6.

[0035] Specifically, the port of the second end of the flexible connecting pipe 5 has an internal thread G3 / 4", and the cable outlet of the lighting device 6 has an external thread G3 / 4".

[0036] In some alternative embodiments, the distance between the port of the second end of the steel pipe 4 and the cable outlet of the lighting device 6 is 0.36 meters.

[0037] Furthermore, the flexible connecting pipe 5 is a 0.5 - meter stainless - steel flexible connecting pipe 5. The flexible connecting pipe 5 is bent at 90°, and the lighting device 6 is located above the flexible connecting pipe 5.

[0038] In some alternative embodiments, the steel pipe 4 is a marine seamless steel pipe 4CB357-87, with material Q235A, nominal diameter DN25, and outer diameter DW34.

[0039] The present invention provides a lighting explosion-proof system within a dangerous area of a ship, which uses lighting equipment 6 with an explosion-proof function, and is equipped with a G3 / 4" external thread at the cable pipe orifice of the lighting equipment 6. A DN25 marine seamless steel pipe 4 is used, and the port at the second end of the steel pipe 4 is an external thread G1X60, passing through the bulkhead 3 all the way to a position 0.36 meters away from the cable pipe orifice of the lighting equipment 6. A 0.5-meter stainless steel flexible connecting pipe 5 is used to connect the lighting equipment 6 and the steel pipe 4.

[0040] This lighting explosion-proof system within the dangerous area of the ship can not only meet the requirements of the shipowner and regulations, but also facilitate the procurement and construction of the shipyard.

[0041] This lighting explosion-proof system within the dangerous area of the ship completes the task of explosion-proof in the dangerous area 1 by uniformly designing the parameters of the lighting equipment 6, the stainless steel flexible connecting pipe 5, and the marine seamless steel pipe 4. Therefore, it can make the design, procurement, and construction of the lighting system in the dangerous area 1 of the ship more unified and concise, reducing both the energy and time spent on design and the difficulty of construction.

[0042] This lighting explosion-proof system within the dangerous area of the ship can not only reduce the time consumed in design, but also reduce the on-site construction intensity; it not only ensures the lighting explosion-proof requirements in the dangerous area 1, but also ensures the unity and aesthetics of the cable and pipeline layout in the dangerous area 1.

[0043] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An explosion-proof lighting system in the dangerous area of a ship, where the safe area and the dangerous area are separated by a bulkhead, and it is characterized in that: Comprising: A steel pipe, the steel pipe is located within the hazardous area, the first end of the steel pipe passes through the bulkhead, and the outer wall of the first end of the steel pipe is sealingly connected to the bulkhead; A flexible connecting pipe, the flexible connecting pipe is located within the hazardous area, and the first end of the flexible connecting pipe communicates with the second end of the steel pipe; A lighting device, the lighting device is located within the hazardous area, and the cable nozzle of the lighting device communicates with the second end of the flexible connecting pipe; The cable for powering the lighting device is introduced into the safe area through the flexible connecting pipe and the steel pipe in sequence.

2. The lighting explosion-proof system within the dangerous area of a ship according to claim 1, wherein: The first end of the steel pipe passes through the bulkhead through a sleeve.

3. The lighting explosion-proof system within the dangerous area of a ship according to claim 1, wherein: The first end of the flexible connecting pipe communicates with the second end of the steel pipe by means of a threaded connection.

4. The explosion-proof lighting system within the dangerous area of a ship according to claim 3, characterized in that: The port of the second end of the steel pipe is an external thread G1X60, and the port of the first end of the flexible connecting pipe is an internal thread G1X60.

5. The lighting explosion-proof system within the dangerous area of a ship according to claim 1, characterized in that: The cable nozzle of the lighting device communicates with the second end of the flexible connecting pipe by means of a threaded connection.

6. The lighting explosion-proof system in the dangerous area of a ship according to claim 5, wherein: The port of the second end of the flexible connecting pipe is an internal thread G3 / 4", and the cable nozzle of the lighting device is an external thread G3 / 4".

7. The lighting explosion-proof system in the dangerous area of a ship according to claim 1, wherein: The lighting device has an explosion-proof function.

8. The explosion-proof lighting system in the dangerous area of a ship according to claim 1, wherein: The port of the second end of the steel pipe is 0.36 meters away from the cable nozzle of the lighting device.

9. The lighting explosion-proof system within the dangerous area of a ship according to claim 1, wherein: The flexible connecting pipe is a 0.5-meter stainless steel flexible connecting pipe.

10. The lighting explosion-proof system in the dangerous area of a ship according to claim 1, wherein: The steel pipe is a marine seamless steel pipe CB357-87, the material is Q235A, the nominal diameter is DN25, and the outer diameter is DW34.

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