CN214170076U - Fixed fire-proof anti-explosion blocking structure for protecting high-end valve hall of convertor station - Google Patents

Abstract

The utility model provides a fixed fire prevention antiknock block structure in protection converter station high-end valve room, at converter transformer and high-end valve room junction, the converter transformer side of original fire prevention shutoff increases one extra fixed fire prevention antiknock shutoff promptly, fixed fire prevention antiknock shutoff as the fire prevention antiknock protection of high-end valve room and converter transformer, fixed fire prevention antiknock shutoff adopt to be the skeleton girder steel for H shaped steel to stainless steel square pipe laminating corrosion resistant plate is as antiknock door panel to it has fire resistive material to fill in the middle of stainless steel square pipe. And manufacturing a plurality of anti-explosion door panels for plugging the fixed fireproof anti-explosion doors in the intervals of each converter transformer, wherein each anti-explosion door panel is connected to a framework steel beam by using stainless steel bolts. The utility model discloses a reach the anti-knock effect of fire prevention in converter transformer side, the utility model provides a because converter transformer ware results in the blasting back because the trouble is on fire, the safety problem of the original fire prevention shutoff of valve room side avoids converter transformer intensity of a fire to stretch to the valve room, guarantees the interior equipment safety of valve room.

Description

Fixed fire-proof anti-explosion blocking structure for protecting high-end valve hall of convertor station

Technical Field

The utility model belongs to power industry power transmission and transformation equipment fire control safety field specifically belongs to a fixed fire prevention antiknock shutoff in protection current conversion station high-end valve room.

Background

The converter station is the most important node of the direct current transmission line, and the key of ensuring the safe and stable operation of the converter station is direct current transmission. Converter valves and transformers are again the most important equipment in a converter station. The converter valve is connected with the converter transformer through a valve side sleeve, however, the converter transformer is used as a main noise source in the converter station, and a corresponding noise reduction scheme is required to be adopted to reduce the factory boundary noise of the converter station, so that an environment-friendly power grid is realized. The sound insulation cover (Box-in) is widely applied to noise reduction engineering of the current converter transformer due to obvious noise reduction effect, however, when the converter transformer is in a fire due to failure, the internal pressure of the Box-in is increased instantly as a closed device, the converter transformer may explode, and equipment in a valve hall connected with the converter transformer is damaged irreversibly, so that huge economic loss is caused. Therefore, necessary fire protection guarantee measures are added on the premise of guaranteeing the noise reduction and sound insulation performance of the Box-in device under the condition that the normal operation of equipment in the converter station is not influenced, so that the equipment in a valve hall is protected from being influenced by emergency when a converter transformer is in a fire disaster or even the converter transformer explodes, and the economic loss caused by the fault is reduced to the maximum extent.

At present, aiming at the protection of equipment in a valve hall of a converter station, the conventional method in the converter station adopts a paloc rock wool board, and the method is mainly characterized in that: inhale sound, dampproofing, fire-retardant, nevertheless when converter transformer explodes, it can't guarantee that valve hall internal equipment does not receive the explosion and influences, consequently, need to develop an antiknock structure of protection converter valve urgently, and under the emergency, the separation disaster spreads, ensures that barrier layer both ends equipment is relatively independent, guarantees the operation security of converter station.

CN201821419365.8 discloses a hot wall shutoff explosion-proof construction is prevented to converter transformer valve room side, realizes valve room entrance to a cave shutoff and strengthens through the structural style of push-and-pull door, but because the actual conditions of the current domestic converter station is more complicated, the sleeve pipe distribution form of the converter transformer who adopts has arrange from top to bottom, arranges about, and to multiple form such as angular line arrangement, so the push-and-pull door structure suitability is limited, and also has certain requirement to the hot wall space of valve room entrance to a cave both sides. Meanwhile, because the distance between the high-end converter transformer adopted at present and a valve hall wall is very short when the high-end converter transformer is in a falling position, the actual construction space of the beam-slab structure anti-explosion plugging taking the H-shaped steel as the framework is very narrow and even has no construction feasibility, and therefore the anti-explosion plugging structure which is more suitable for the research of the high-end converter transformer by combining with the actual working condition is needed.

Disclosure of Invention

The utility model aims at that converter transformer provides equipment does not receive emergency to influence in the protection valve room, and the fixed fire prevention antiknock block structure in protection converter station high-end valve room of economic loss that the at utmost reduces to cause because of the fault to overcome present converter station when converter transformer explodes, can't guarantee the defect that equipment does not receive the explosion influence in the valve room.

In order to realize the above purpose, the utility model discloses the technical scheme who adopts is:

a fixed fireproof and anti-explosion blocking structure for protecting a high-end valve hall of a convertor station.

The converter station comprises a converter valve and a converter transformer, wherein the converter valve is positioned in a high-end valve hall and is connected with the converter transformer outside the valve hall through a valve side sleeve, and the converter station is characterized in that: and a fixed fireproof anti-explosion door is added at the converter transformer side of the fireproof plugging of the original high-end valve hall for plugging at the high-end valve hall cave mouth where the converter transformer is connected with the converter valve.

Fixed fire prevention antiknock door adopt and use H shaped steel as the skeleton girder steel, use stainless steel square pipe laminating corrosion resistant plate as fire prevention antiknock door panel, and it has fire-resistant material to fill in the middle of the stainless steel square pipe.

And the fixed fireproof anti-explosion door plugged anti-explosion door panels in each interval of the converter transformer are made into a plurality of blocks, and each block is connected to the framework steel beam by using stainless steel bolts.

The H-shaped framework steel beam is Q235B carbon steel and has the specification of HN294 200 9 14 (mm);

the stainless square tube is made of austenitic 304 stainless steel, and the specification is 80 × 6(mm) and 80 × 60 × 6 (mm);

the stainless steel plate is austenitic 304 stainless steel with the thickness of 3 mm;

the fireproof filling material is an aluminum silicate needled blanket with the thickness of 80mm, and refractory mortar is filled between the aluminum silicate needled blanket and the stainless steel square tube.

The utility model has the advantages that: the fixed fireproof and anti-explosion blocking structure is additionally arranged outside the fireproof blocking of the original high-end valve hall of the converter station, and has the effects that when a converter transformer is ignited to generate explosion, the fireproof and anti-explosion blocking structure can not only physically isolate the side of the converter transformer from the side of the valve hall, but also prevent the fire at the side of the converter transformer from spreading to the side of the valve hall to cause immeasurable loss, and can resist the shock waves generated by the side of the converter transformer to the side of the valve hall when the transformer is exploded to protect important equipment in the valve hall from the influence of explosion overpressure.

In addition, considering the convenience of operation and maintenance, the fixed type fireproof anti-explosion door panel for plugging is made into a plurality of blocks, so that the fixed type fireproof anti-explosion door is convenient to disassemble and assemble.

Drawings

Fig. 1 is an overall schematic view of the framework of the present invention;

fig. 2 is an overall schematic view of the panel of the present invention;

figure 3 is an overall view of the keel of the present invention;

fig. 4 is a schematic view of the anti-explosion door panel and its components of the present invention.

In the figure: 1-H type steel frame, 2-stainless steel panel, 3-reserved bolt holes, 4-copper-clad steel strand, 5-80-60-6 (mm) austenite 304 stainless steel keel, 6-80-6 (mm) austenite 304 stainless steel keel and 7-aluminum silicate needle-punched blanket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, but this embodiment is not intended to limit the present invention, and all the same improvements of the present invention should be included in the scope of the present invention, and the advantages of the present invention will be understood more clearly and easily through the description.

A fixed type fireproof and anti-explosion blocking structure for protecting a high-end valve hall of a converter station mainly comprises a converter valve and a converter transformer, wherein the converter valve is connected with the converter transformer through a valve side sleeve, the fireproof and anti-explosion blocking integral H-shaped steel frame structure added to the high-end valve hall is shown in figure 1, the specification of the H-shaped steel frame 1 is Q235B carbon steel HN294 200 9 14(mm), the panel of the fireproof and anti-explosion blocking structure is integrally shown in figure 2, the panel is composed of austenite 304 stainless steel panels 2 with the thickness of 3mm, austenite 304 stainless steel keels 5 and 80 60 6(mm), austenite 304 stainless steel keels 6 and aluminum silicate needled blankets 7, and each stainless steel panel 2 is composed of austenite 304 stainless steel keels 6 and aluminum silicate needled blankets 7 with the thickness of 35mm²And the copper-clad steel stranded wires 4 are connected.

Because converter transformer among the converter station is close apart from high-end valve hall firewall, all is less than 100mm, and 1 thickness specification of H shaped steel structure frame is 294mm in FIG. 1, converter transformer can't lay H shaped steel in high-end valve hall firewall projection region, so adopt door type shape structure from converter transformer left side, upside, right side cladding converter transformer to it is 8380mm to consider H shaped steel structure frame height simultaneously, violently, the vertical beam of little steel construction of a plurality of length unifications with its split for simple to operate.

Each panel 2 in fig. 2 was assembled with the reserved bolt holes 3 and 35mm by M16 x 125 bolts²The copper-clad steel strand wires 4 connect the anti-explosion door panels 2, and 4 reserved bolt holes are formed in the single anti-explosion door panel 2And 3, the transverse waist-shaped hole is used for conveniently fixing the anti-explosion door panel 2 on the H-shaped steel structural frame 1, so that the anti-explosion performance of the anti-explosion door panel is ensured.

Fig. 3 is a schematic diagram of a fireproof and anti-explosion blocking integral stainless steel keel of a high-end valve hall, the stainless steel keel has two specifications, one is an 80 x 60 x 6(mm) austenitic 304 stainless steel keel 5, the other is an 80 x 6(mm) austenitic 304 stainless steel keel 6, wherein the 80 x 6(mm) austenitic 304 stainless steel keel 6 is used for an outer frame around the fireproof and anti-explosion blocking structure, the 80 x 60 x 6(mm) austenitic 304 stainless steel keel 5 is used for an inner frame of the fireproof and anti-explosion blocking structure, and the arrangement intervals of the stainless steel keel 5 and the stainless steel keel 6 can be flexibly adjusted according to actual anti-explosion requirements, so that the overall anti-explosion performance of the fireproof and anti-explosion blocking structure is ensured.

Fig. 4 is a schematic diagram of an anti-explosion door panel and its composition, the outer surface of the anti-explosion door panel close to a converter transformer is coated by a 3mm austenitic 304 stainless steel panel 2, the 3mm stainless steel panel 2 is welded on austenitic 304 stainless steel keel frames 5 and 6, the vacant part of each keel is filled with an aluminum silicate needle-punched blanket 7 for fire protection, the gap between the aluminum silicate needle-punched blanket 7 and the stainless steel keel frames 5 and 6 is filled and sealed by refractory mortar, the back of the stainless steel keel frame, namely the side close to the fire wall of a high-end valve hall, is also welded with a layer of 3mm stainless steel panel 2, from this point, the stainless steel panel 2 and the stainless steel keels 5 and 6 ensure the anti-explosion performance for the fire-explosion blocking structure, and the aluminum silicate needle-punched blanket 7 provides reliable fire protection performance for the fire-explosion blocking structure.

Details not described in this specification are within the skill of those in the art.

Claims (7)

1. The utility model provides a fixed fire prevention antiknock block structure in protection converter station high-end valve room, the converter station includes converter valve and converter transformer, and the converter valve in the high-pressure valve room is connected with the converter transformer outside the valve room through valve side sleeve pipe, its characterized in that: a fixed fireproof and anti-explosion door is additionally arranged on the side face of the converter transformer which is blocked by the original high-end valve hall in a fireproof manner at the opening of the high-end valve hall where the converter transformer is connected with the converter valve.

2. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 1, wherein: the fixed fireproof and anti-explosion door is characterized in that H-shaped steel is used as a framework steel beam, a stainless steel square tube is attached to a stainless steel plate to form a fireproof and anti-explosion door panel, and fireproof filling materials are filled in the middle of the stainless steel square tube.

3. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 2, wherein: and the anti-explosion door panels of the fixed fireproof anti-explosion door plugs in each interval of the converter transformer are made into a plurality of blocks, and each block is connected to the framework steel beam by using stainless steel bolts.

4. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 2, wherein: the H-shaped framework steel beam is Q235B carbon steel and has the specification of HN294 mm 200mm 9mm 14 mm.

5. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 2, wherein: the stainless steel square tube is made of austenitic 304 stainless steel, and the specification is 80mm x 6mm and 80mm x 60mm x 6 mm.

6. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 2, wherein: the stainless steel plate is austenitic 304 stainless steel with the thickness of 3 mm.

7. The fixed fire and explosion protection blocking structure for protecting the high-end valve hall of the converter station according to claim 2, wherein: the fireproof filling material is an aluminum silicate needled blanket with the thickness of 80mm, and refractory mortar is filled between the aluminum silicate needled blanket and the stainless steel square tube.

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