KR20090010335U - Luminaire for explosive atmosphere - Google Patents

Abstract

The present invention relates to the explosion-proof, such as petrochemical, gas, oil refinery, gas station, filling station or large factory to handle the hazardous materials to illuminate the work space, in particular, dangerous substances that are handled at high temperature and high pressure The present invention relates to an explosion-proof lamp having improved stability so as to prevent ignition by overheating such as an explosion-proof lamp.

To this end, the present invention is provided with a light emitting socket having a lamp and a housing disposed above the light emitting socket, the housing having a ballast for supplying a stable power to the lamp, and to prevent overheating of the lamp or ballast or both. It is made, including the temperature rise prevention portion, characterized in that the light emitting socket is a space portion formed while being fastened to the housing.

Explosion proof lights, charging stations, overheating, heat radiation fins, nonpolar

Description

Explosion proof lamp improved stability {LUMINAIRE FOR EXPLOSIVE ATMOSPHERE}

The present invention relates to the explosion-proof, such as petrochemical, gas, oil refinery, gas station, filling station or large-scale factory to handle the hazardous materials to illuminate the work space, more specifically, dangerous substances to be handled at high temperature and high pressure The present invention relates to an explosion-proof lamp having improved stability so as to prevent ignition by overheating of the explosion-proof lamp.

In petrochemical, gas, oil refinery and storage, many dangerous substances are treated at high temperature and high pressure in various processes, which poses the risk of fire or gas poisoning due to explosion.

In addition, the explosion of such a factory is not only a factory and a refinery, but it spreads to surrounding factories or residential districts, leading to a large accident. The explosion must be carried out by designing, constructing, and operating with an accurate concept of explosion proof in these factories and areas. It is possible to prevent the risk of

The classification method and the limit temperature according to the risk of explosion are as follows.

Classification according to explosion class

standard Explosion Rating and Clearance Width  KS, JIS Explosion Rating One 2 3 Width of gap (mm) > 0.6 > 0.4≤0.6 ≤0.4  IEC, EN, BSI Explosion Rating IIA IIB IIC Width of gap (mm) > 0.9 > 0.5≤0.9 <0.5  UL, NEC Explosion Rating - - - Width of gap (mm) - - -

Classification method by degree of ignition

Range of flash point Degree of ignition Temperature rise limit of container surface Above 450 ℃ G1 320 ℃ 300 ℃ or more and 450 ℃ or less G2 200 ℃ 200 ℃ or more and less than 300 ℃ G3 120 ℃ 135 ℃ or more and 200 ℃ or less G4 70 ℃ 100 ℃ or more and 135 ℃ or less G5 40 ℃ 85 ℃ or more and 100 ℃ or less G6 30 ℃

IEC regulations

Temperature class T1 T2 T3 T4 T5 T6 Surface temperature 450 ℃ 300 ℃ 200 ℃ 135 ℃ 100 ℃ 85 ℃

The above standards are Korean (Industrial) Standards (KS), Japanese Industrial Standards (JIS), International Electrotechnical Commission (IEC), EN (European Integration Standard), British Standard Institute UK Standards Association), UL (Underwriters Laboratories), NEC (National Electrical Code American Electrotechnical Standards),

Identify the hazardous materials and explosion grades, the degree of ignition, the flash point, the explosion limits, the vapor density, and other special needs that exist at the design site, and the temperature, pressure, and characteristics if the hazardous materials are actually used. The final place of risk will be determined.

At this time, the light source means used in the above places are manufactured separately from the commonly used home, store use to withstand high temperature and high pressure, explosion-proof, etc. are manufactured to prevent damage to various external environments do.

These explosion-proof lights are selected based on the following selection requirements.

Explosion-proof area in the area where explosion-proof lamps are to be installed. Maximum ignition current, pressure-proof explosion-proof structure for ignition temperature, pressure-resistant explosion-proof structure of gas, etc. Maximum ignition current, pressure explosion-proof structure, inflow-proof structure, safety explosion-proof structure Environmental conditions such as ambient temperature, elevation, or relative humidity, dust, corrosiveness, gas or moisture at the surface where the surface temperature, explosion-proof, etc. are to be installed.

That is, various explosion-proof lamps are screened and used according to the installation place, the surrounding environment, and the design structure of the explosion-proof, and stability without fear of explosion, even for long time use, is a trend that is recognized as the most important criterion in the screening criteria of explosion-proof lamps.

Explosion-proof lamp with excellent stability prevents the heat generated inside the explosion-proof lamp from overheating beyond a certain temperature even for long time use and prevents sparks from occurring when power is turned on / off in the explosion-proof lamp. This can be called.

However, the explosion-proof lamp used in the related art has a problem that the inside of the explosion-proof lamp is overheated after using it for a long time because it is merely provided with a heat radiation fin to circulate heat generated inside.

The present invention is proposed to solve the above problems, to prevent the explosion-proof light is overheated by providing a temperature rise prevention unit inside the explosion-proof lamp that can be primarily absorbed heat generated from the lamp and ballast. There is this.

In addition, the warm-up preventive unit is a space formed by fastening the light-emitting socket and lamp housing provided with the lamp to each other is an object to provide an explosion-proof and the like of a more compact structure with excellent overheating prevention effect.

In addition, by arranging a plurality of radiating fins radially on the outer circumferential surface of the light-emitting socket and housing constituting the explosion-proof lamp to provide an explosion-proof lamp with improved stability that allows the high temperature air inside the explosion-proof lamp to easily conduct heat to the outside air. There is this.

In order to achieve the above object, the present invention provides a housing including a light emitting socket having a lamp and a ballast disposed on an upper side of the light emitting socket, and having a stabilizer for supplying stable power to the lamp and the lamp or ballast or both. It is provided to prevent overheating, and comprises a temperature rise preventing portion, characterized in that the light emitting socket is a space portion formed while being fastened to the housing.

At this time, the fastening of the light emitting socket and the housing for the formation of the temperature rise prevention portion is characterized in that consisting of a screw coupling portion formed on the upper portion of the light emitting socket and the corresponding fastening portion formed on the lower portion of the housing.

The housing may include a main body accommodating the ballast and a cover covering the main body, and the housing may include an auxiliary temperature increase prevention part formed by arranging the ballast away from the bottom of the housing main body.

At this time, the auxiliary temperature rise preventing portion is characterized in that the space formed by the projections arranged on the bottom surface of the housing body, and the support plate provided on the upper end of the projections.

Furthermore, a plurality of heat dissipation fins are arranged in a radial form on the outer circumferential surface of the light emitting socket or the housing or both to improve thermal conductivity.

In addition, the lamp is characterized in that the ignition flame is prevented from occurring by using a non-polar lamp.

The present invention made as described above improves stability by preventing the temperature inside the explosion-proof, such as explosion-proof even for long time use to rise above the reference temperature,

In order to prevent the temperature rise inside the explosion-proof light, it is possible to form the temperature rise prevention part without adding a separate configuration, so it is excellent in economical effect because no additional manufacturing cost is required.

In addition, by providing a plurality of the temperature rise prevention portion to improve the thermal conductivity, and by arranging a plurality of heat radiation fins along the outer circumferential surface of the explosion-proof, it is possible to efficiently conduct heat inside the explosion-proof lamp to the outside has an excellent stability effect.

Hereinafter, with reference to the accompanying drawings to describe a preferred embodiment of the improved explosion-proof stability according to the present invention.

In describing the explosion-proof lamp with improved stability according to the present invention with reference to the accompanying drawings, when specifying the direction reference on the basis of Figure 1,

When explosion-proof lamp is fixed to ceiling, and lamp irradiates light by drawn external power supply,

The side to which the light irradiated from the lamp is referred to as the lower or lower side,

The ceiling side where the explosion-proof lamp is fixed is called the upper side or the upper side.

As shown in Figures 1 to 3, the explosion-proof lamp 100 according to the present invention is a light emitting socket 10 and the light emitting socket 10 is accommodated therein the lamp 1 and the fixing plate (1a) for fixing the lamp (1) A housing 20 and a light emitting socket 10 disposed above the socket 10 and having a ballast 2 for supplying stable power to the lamp 1 and a support plate 2a for holding and supporting the ballast 2. ) And a temperature rise preventing portion (T1) formed by the combination of the housing 20.

The light emitting socket 10 is provided with a reflecting plate 1b for diffusing the light irradiated from the lamp 1, to prevent foreign matters and the like from entering the light emitting socket 10 in which the lamp 1 is accommodated. The gasket 11 is coupled to the lower portion of the light emitting socket 10.

At this time, the gasket 11 may be fixed to the lower lid (10a) coupled to the light emitting socket 10, the lower lid (10a) is hinged rotatably coupled to the light emitting socket 10, life When the lamp 1 is replaced, the lower lid 10a is rotated downwardly about the hinge H so that an operator can replace the lamp 1, thereby reducing maintenance costs and time.

On the other hand, the lower lid (10a) is further coupled to the guard net 12, the guard net 12 is to prevent the worker from being burned by the heat generated by the lamp 1 and the heat raised thereby, a number of Two circular rings 12a and horizontal teeth 12b across the circular ring 12a to prevent the operator's hand or head from directly contacting the lower part of the lamp 1 and the light emitting socket 10.

The fastening part 13 provided on the upper portion of the light emitting socket 10 is formed in a yaw shape, and a thread 14 is formed along the outer circumferential surface thereof so that the corresponding screw thread 24 of the corresponding fastening part 23 to be described later. Screwed with and, the bottom of the fastening portion 13 is formed with a through hole 15 for the power line (C) for connecting the ballast 2 and the lamp (1).

The corresponding fastening part 23 having a corresponding screw thread 24 to which the thread 14 of the fastening part 13 is coupled is formed on the bottom of the housing 20. The fastening part is formed in a yaw shape. It is sized to accommodate (13).

That is, the fastening portion 13 is received inside the corresponding fastening portion 23 and at the same time the thread 14 formed on the outer circumferential surface and the corresponding screw thread 24 of the corresponding fastening portion 23 are screwed to form a binding, As the inner space of the fastening portion 13 and the inner space of the corresponding fastening portion 23 are combined, the temperature increase preventing portion T1 is formed.

The temperature increase prevention part T1 is a space for receiving heat generated from the lamp 1 and the ballast 2 supplying power to the lamp 1 and conducting heat conduction to external low air. It is formed by the combination of the 13 and the corresponding fastening portion 23, and receives the heat generated by the heat of the lamp 1 and the ballast (2) to conduct it to the outside.

The housing 20 in which the corresponding fastening portion 23 is formed is provided with a ballast 2 for supplying stable power to the lamp 1, and a support plate for fixing the ballast 2 to the inside of the housing 20. It consists of the main body 20a which accommodated (2a), and the cover 20b which covers the said main body 20a.

At this time, the ballast 2 is provided in order to conduct heat generated from the ballast 2 to the outside without directly contacting the ballast 2 provided in the main body 20a of the housing 20 with the main body 20a. Arranged away from the bottom surface 26 of the housing 20 body 20a to form an auxiliary temperature increase preventing portion T2.

As shown in FIG. 4, the auxiliary temperature increase prevention part T2 is provided at the top of the protrusion 27 and the protrusion 27 arranged on the bottom surface 26 of the main body 20a of the housing 20. The stabilizer 2 is fixed to the support plate 2a by the space formed by the support plate 2a.

That is, by arranging the ballast 2 at a certain height ascending from the bottom surface 26 of the main body 20a of the housing 20, the heat generated from the ballast 2 can be prevented from being directly radiated to the housing 20. The heat generated from the stabilizer 2 is temporarily stored in a space formed between the protrusion 27 and the support plate 2a, and then thermally conducts to the outside to lower the internal temperature.

A through hole 15 through which the power line C passes is formed in the cover 20b, and is hinged to the main body 20a to be rotatable so that the ballast 2 can be easily replaced and maintained. do.

Furthermore, the cover 20b and the lower cover 20b increase the binding force by the main body 20a and the light emitting socket 10 and the plurality of tightening bolts B of the housing 20. The tightening bolts B Is provided with a plurality of the cover 20b and the lower cover 20b to the outside and the coupling groove Ba is coupled to the tightening bolt (B) is provided in the main body 20a and the light emitting socket 10 is coupled to each other .

The temperature rise preventing part T1 and the auxiliary temperature increase preventing part T2 are formed at positions where the heat generated by the lamp 1 and the ballast 2 overlap each other, and explosion-proof, etc., which rise rapidly due to overlapping heat. It is for conducting the internal temperature of 100 to the outside.

Furthermore, a plurality of heat dissipation fins T3 are arranged on the outer circumferential surfaces of the light emitting socket 10 and the housing 20 so as to conduct heat generated from the lamp 1 and the ballast 2 to the outside, and at this time, the heat dissipation fins T3. ) Is further arranged outside the temperature increase preventing unit T1 or the auxiliary temperature increase preventing unit T2 to obtain high thermal conductivity.

In addition, the lamp (1) is a non-polar lamp (1) that does not generate an ignition spark (spark) when turned on by the power supplied from the ballast (2), the explosion-proof lamp (100) is filled inside the dangerous place installed This is to prevent sparks in the gas lamp.

The non-polar lamp 1 has no distinction between (+) and (-) poles and is easy to install and can be used semi-permanently because of its long life, and is currently used in various fields such as a warning light and a street lamp.

5 is a view showing a state in which the lower lid 10a is rotated around the hinge (H), the operator easily for the replacement of the lamp (1) and the interior of the lamp (1) and explosion-proof light (100) By making it visible to the naked eye, the cost and time of maintenance can be reduced.

Looking at the operation state and the effect of the present invention made as described above are as follows.

First, the stable power is continuously supplied to the lamp 1 through the ballast 2 to which the external power line C is connected to use the light emitted from the lamp 1 as a light source.

Temperature rise prevention unit (T1), auxiliary temperature rise prevention unit (T2), and heat radiation fin (T3) for conducting heat generated from the lamp (1) and ballast (2) to the outside to lower the temperature inside the explosion-proof lamp (100) A plurality of these are provided.

The temperature increase preventing part T1 and the auxiliary temperature increase preventing part T2 are positioned at overlapping heat generated from the lamp 1 and the ballast 2, and the heat dissipation fin T3 is connected to the lamp 1. A plurality of radially arranged along the outer circumferential surface of the light emitting socket 10 and the housing 20 in which the heat generated from the ballast 2 is present.

That is, the temperature rise prevention portion (T1) and the auxiliary temperature rise prevention portion (T2) is formed in the place where the heat of the high temperature inside the explosion-proof lamp (100) to quickly conduct heat to the outside, explosion-proof lamp (100 The outer circumferential surface of the) is provided with a plurality of heat radiation fins (T3) to lower the internal temperature.

Therefore, the explosion-proof lamp 100 according to the present invention can quickly conduct heat generated from the lamp 1 and the ballast 2 to the outside to lower the internal temperature of the explosion-proof lamp 100 so that the explosion-proof does not overheat even in long-term use. Etc. 100 may be provided, and in particular, a temperature increase prevention part T1 and an auxiliary temperature increase prevention part T2 are formed where heat is overlapped and heat exists at a higher temperature than other parts. It is economical by reducing the additional manufacturing cost by the additional space and the space formed by the combination of the light emitting socket 10 and the housing 20 and the ballast 2 does not directly contact the housing 20 without additional attachment It is an excellent effect.

Although the explosion-proof and the like have been described with reference to the accompanying drawings, the stability of the present invention is improved, and the present invention is not limited to these descriptions, and various modifications are made by those skilled in the art within the scope of the idea of the appended utility model registration claims. And variations are possible and should be construed as being within the scope of protection of the present invention.

1 is a bottom perspective view showing an explosion-proof lamp according to the present invention.

2 is a cross-sectional view showing an explosion-proof lamp according to the present invention.

3 is an exploded perspective view of FIG. 1;

Figure 4 is a schematic perspective view showing an auxiliary temperature increase prevention unit.

5 is a cross-sectional view showing a rotation state.

<Description of Major Symbols in Drawing>

100: explosion proof light C: power line

DESCRIPTION OF SYMBOLS 1 Lamp 1a Support plate 1b Reflector

DESCRIPTION OF SYMBOLS 10 Light-emitting socket 11 Gasket 12 Protection net 13 Fastening part

14: thread 15: through hole

2: ballast 2a: support plate

20: housing 20a: main body 20b: cover

23: counterpart 24: counterpart 25: through hole 26: bottom surface

27: turning

T1: Temperature rise prevention part T2: Auxiliary temperature rise prevention part T3: Heat dissipation fin

H: Hinge B: Tightening bolt Ba: Coupling groove

Claims (6)

A light emitting socket having a lamp; A housing disposed above the light emitting socket and having a ballast for supplying power to the lamp; And It is provided to prevent overheating of the lamp or ballast or both of the temperature rise preventing portion, characterized in that the space portion is formed while the light emitting socket is fastened to the housing; Improved stability, including explosion-proof lights made. According to claim 1, The fastening of the light emitting socket and the housing for forming the temperature rise prevention portion, The explosion-proof lamp having improved stability, characterized in that the coupling portion formed on the upper portion of the light emitting socket and the corresponding coupling portion formed on the lower portion of the housing. The method of claim 1, The housing is composed of a main body that accommodates the ballast and a cover covering the main body, The housing is provided with an auxiliary temperature increase prevention portion formed by the ballast spaced apart from the bottom of the housing body, explosion-proof stability, and the like. The method of claim 3, wherein the auxiliary temperature increase prevention unit Stability-proof explosion-proof lamp, characterized in that the space formed by a projection arranged on the bottom surface of the housing body, and a support plate provided on the upper end of the projection. The method according to any one of claims 1 to 4, Stability-proof explosion-proof lamp, characterized in that further provided with a plurality of heat radiation fins arranged on the outer peripheral surface of the light emitting socket or housing or both. The method according to any one of claims 1 to 4, The lamp is explosion-proof lamp with improved stability, characterized in that the non-polar lamp.

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