阅读说明：本技术 一种地下燃烧设备机房管涵式泄爆口及施工方法 (Pipe culvert type explosion venting port of underground combustion equipment machine room and construction method ) 是由 印长友 陈钧 陈斌 白一 魏巍 刘蕾 刘金清 王超辉 王根军 叶彩花 董小波 于 2020-05-27 设计创作，主要内容包括：本发明提供一种地下燃烧设备机房管涵式泄爆口及施工方法,多节泄爆管涵承插对接后组成的泄爆管将地下机房、泄爆小室和转弯小室连通,泄爆小室上覆有轻质屋顶且与地面连通。泄爆管涵之间承插对接后在对接处覆有密封层；泄爆管与地下机房和泄爆小室连通处的端口均先由密封环密封,再由加固环固定。优点是：泄爆管涵铺设灵活,泄爆口可灵活引向其他适宜位置而不改变机房的选址,提升了方案的适用性,泄爆通路灵活,降低了施工成本。将泄爆洞口转移到侧墙结构上,减少屋顶的抗剪切力的结构成本,对于降低了项目的加固费用。采用向天泄爆的泄爆方式,不会造成相邻人员和构筑物的连环殉爆情况,避免对周边造成二次伤害。(The invention provides a pipe culvert type explosion venting port of a machine room of underground combustion equipment and a construction method. After the explosion venting pipes and culverts are in socket joint, a sealing layer is covered at the joint; the ports of the explosion venting pipe, the underground machine room and the explosion venting chamber are sealed by sealing rings and then fixed by reinforcing rings. The advantages are that: the explosion venting pipe culvert is flexible to lay, the explosion venting port can be flexibly led to other suitable positions without changing the site selection of a machine room, the applicability of the scheme is improved, the explosion venting passage is flexible, and the construction cost is reduced. The explosion venting hole is transferred to the side wall structure, so that the structural cost of the shearing resistance force of the roof is reduced, and the reinforcing cost of the project is reduced. By adopting a natural explosion venting mode, the situation of interlinked sympathetic explosions of adjacent personnel and structures can not be caused, and secondary damage to the periphery is avoided.)

1. The utility model provides an explosion mouth is let out to underground combustion equipment computer lab pipe culvert formula which characterized in that, it is including letting out explode the pipe culvert, letting out explode cell, light roof, reinforcing ring, sealing ring:

the multiple sections of explosion venting pipes are sequentially connected to form an explosion venting pipe, one end of the explosion venting pipe is communicated with an explosion venting hole in a side wall of an underground machine room, the other end of the explosion venting pipe is communicated with an explosion venting hole in a side wall of an explosion venting chamber, and the explosion venting chamber is covered with the light roof and is communicated with the ground;

after the explosion venting pipe culverts are in socket joint and butt joint, sealing layers are covered at the butt joint positions; the ports at the communication positions of the explosion venting pipe, the underground machine room and the explosion venting chamber are sealed by the sealing rings and then fixed by the reinforcing rings; wherein the reinforcing ring consists of an inner ring, a ribbed plate and an outer ring.

2. The tubular culvert type explosion venting port of an underground combustion equipment room according to claim 1, further comprising a turning small chamber, wherein the turning small chamber is a structure for realizing the turning function of the explosion venting pipe, and is specifically a chamber with a bending structure, the net cross-sectional area of the inside of the turning small chamber is not less than that of the explosion venting pipe, and the explosion venting port of the turning small chamber is arranged on the side wall of the turning small chamber.

3. The pipe culvert type explosion venting port of the underground combustion equipment room of claim 1, wherein the socket and spigot joint of the explosion venting pipe culverts comprises that a socket and spigot groove and a socket and spigot protrusion corresponding to the socket and spigot joint of the next explosion venting pipe culvert are formed on the butt joint surface of the explosion venting pipe culverts.

4. The tubular culvert explosion venting port of an underground combustion equipment machine room of claim 1, wherein the explosion venting chamber is exposed out of the ground by at least 600 mm, and the top of the explosion venting chamber is provided with a mass less than 120Kg/m²The inside clear cross-sectional area of the explosion venting chamber is not less than the clear cross-sectional area of the explosion venting pipe.

5. The pipe culvert explosion venting port of an underground combustion equipment machine room according to claim 4, wherein a gap between the lightweight roof and the explosion venting chamber is filled with gypsum or cement mortar.

6. The pipe culvert type explosion venting port of an underground combustion equipment machine room according to claim 1, wherein the sealing ring is a rubber ring, the inner diameter of the rubber ring is the same as the outer diameter of the explosion venting pipe culvert, and the ring width of the rubber ring is not less than that of the reinforcing ring.

7. The pipe culvert type explosion venting port of the underground combustion equipment machine room according to claim 1, wherein the reinforcing ring is of a steel ring structure, the rib plate comprises an annular rib plate and a sheet rib plate, the plurality of sheet rib plates are uniformly arranged between the inner ring and the annular rib plate and are connected through welding, the outer ring is arranged outside the annular rib plate and is connected through welding, and the width of the outer ring is consistent with the thickness of the vertical maintenance structures of the explosion venting pipe culvert, the machine room outer wall and the explosion venting chamber.

8. A construction method of a pipe culvert type explosion venting port of an underground combustion equipment room, which is used for constructing the pipe culvert type explosion venting port of the underground combustion equipment room as claimed in any one of claims 1 to 7, and is characterized in that:

the explosion venting pipe formed by connecting a plurality of sections of explosion venting pipes in a socket joint mode communicates an underground machine room, the explosion venting small chamber and the turning small chamber, when the explosion venting pipe is communicated, a sealing ring is sleeved at the port of the explosion venting pipe, and then the fixing ring is arranged outside the sealing ring and fixed with an explosion venting hole on the side wall of the underground machine room or the explosion venting small chamber or the turning small chamber;

the fixing ring is directly embedded and poured in the concrete light body, or is fixed with the explosion venting hole through cement mortar.

9. The method for constructing the pipe culvert type explosion venting port of the underground combustion equipment room of claim 8, wherein the part above the ground of the explosion venting pipe culvert is coated with modified asphalt paint for preventing oxidation and rain acidification corrosion; and steel wire mesh cement mortar is firstly used for smearing a belt and winding between the explosion venting pipe culverts, then cement mortar is smeared, and finally molten asphalt is pasted and coated.

10. The construction method of the pipe culvert type explosion venting port of the underground combustion equipment machine room according to claim 8, characterized in that the explosion venting chamber and the turning chamber are sequentially paved into a waterproof cushion layer, a bearing layer, a bottom plate, a vertical maintenance structure and a top plate from bottom to top, wherein the vertical maintenance structure and the top plate are leveled by cement mortar and then attached to a waterproof coiled material.

Technical Field

Relates to the field of fire prevention safety of underground combustion equipment rooms, in particular to a pipe culvert type explosion venting port of an underground combustion equipment room and a construction method.

Background

The machine room of combustible gas combustion equipment such as gas and the like has explosion possibility, and according to the fire safety requirement, in order to protect the safety of personnel, a production room maintenance structure is provided with an explosion venting area with a certain area proportion, so that when gas explosion occurs, the explosion venting area faces outdoors. According to the current latest national standard, the pressure relief area of the boiler room is not less than 10% of the floor area.

At present, a plurality of combustion equipment machine rooms are arranged on the underground layer, and the purpose of explosion venting can not be realized by adopting a door and window explosion venting mode. Most of explosion venting ports of the underground combustion equipment room are arranged right above the equipment room, an explosion venting vertical shaft is constructed to extend out of the underground equipment room, and the net cross-sectional area of the vertical shaft meets the requirement of pressure relief area. The corresponding restrictions apply to the location of the explosion vents extending out of the chamber: the pressure relief direction must not be towards personnel's activity areas such as personnel's gathering place, room and pedestrian passageway, should satisfy standard fire prevention safety interval requirement when letting out to explode mouthful and other building structures and be close to, let out simultaneously and explode mouthful and building and satisfy safety fire prevention interval according to standard requirement. By combining the factors, most of the explosion venting ports of the machine room of the underground combustion equipment are built in green areas of the residential areas or the plant areas.

However, in order to utilize the land value to the maximum extent in the current land production and park development, the overall planning is compact, the building design structure is complex, and often after the underground equipment machine room is selected to meet the process requirements and the operation is convenient, the explosion venting port does not meet the requirements of safety and landscape on the ground, so that the whole process cannot be made good. The selection and adjustment of the position often involves the whole body, especially for the reconstruction project: the positions right above the underground equipment machine room and suitable for building an explosion venting vertical shaft and opening an explosion venting port are difficult to find in the original layout and planning, and great difficulty is caused to the development of engineering schemes. Therefore, how to provide a flexible explosion venting device becomes a problem to be solved urgently.

Disclosure of Invention

The invention provides a pipe culvert type explosion venting port of an underground combustion equipment machine room and a construction method, which are used for solving the problem that in the prior art, an explosion venting vertical shaft is difficult to develop in a transformation project scheme due to large occupied area due to fixed structure.

In order to achieve the purpose, the technical scheme of the invention provides a pipe culvert type explosion venting port of an underground combustion equipment machine room, which comprises an explosion venting pipe culvert, an explosion venting chamber, a light roof, a reinforcing ring and a sealing ring. The multiple sections of explosion venting pipes are sequentially connected to form an explosion venting pipe, one end of the explosion venting pipe is communicated with an explosion venting hole in the side wall of the underground machine room, the other end of the explosion venting pipe is communicated with an explosion venting hole in the side wall of the explosion venting chamber, and the explosion venting chamber is covered with a light roof and is communicated with the ground. After the explosion venting pipes and culverts are in socket joint, a sealing layer is covered at the joint; the ports of the explosion venting pipe, the underground machine room and the explosion venting chamber are sealed by sealing rings and then fixed by reinforcing rings; wherein the reinforcing ring consists of an inner ring, a ribbed plate and an outer ring.

Preferably, the explosion venting pipe further comprises a turning small chamber, the turning small chamber is a structure for realizing the turning function of the explosion venting pipe, and is specifically a chamber with a bending structure, the net cross-sectional area of the inside of the chamber is not less than that of the explosion venting pipe, and an explosion venting hole of the turning small chamber is formed in the side wall of the turning small chamber.

Preferably, the socket joint between the explosion venting pipe culverts comprises a socket groove and a socket protrusion, wherein the socket groove and the socket protrusion are formed on the joint surface of the explosion venting pipe culverts and correspond to the joint surface of the next explosion venting pipe culvert.

Preferably, the explosion venting chamber is exposed to the ground by at least 600 mm, and the top of the explosion venting chamber is provided with a mass less than 120Kg/m²The internal net cross-sectional area of the explosion venting chamber is not less than the net cross-sectional area of the explosion venting pipe.

Preferably, the gap between the lightweight roof and the explosion venting chamber is filled with gypsum or cement mortar.

Preferably, as a preferred option of the above technical solution, the sealing ring is a rubber ring, the inner diameter of the rubber ring is the same as the outer diameter of the explosion venting culvert, and the ring width of the rubber ring is not less than the ring width of the reinforcing ring.

Preferably, the reinforcing ring is a steel ring structure, the rib plate comprises an annular rib plate and a sheet rib plate, the plurality of sheet rib plates are uniformly arranged between the inner ring and the annular rib plate, the inner ring and the sheet rib plate are connected by welding; the outer loop is located outside the cyclic annular floor, and the two is through welded connection, and the width of outer loop is unanimous with the thickness of letting out the vertical maintenance structure that explodes pipe culvert, computer lab outer wall and let out and explode the cell.

The technical scheme of the invention also provides a construction method of the pipe culvert type explosion venting port of the underground combustion equipment machine room, which is used for constructing the pipe culvert type explosion venting port of the underground combustion equipment machine room and comprises the following steps: the explosion venting pipe formed by connecting a plurality of sections of explosion venting pipes in a socket joint mode is used for communicating an underground machine room with the explosion venting chamber and/or the turning chamber, the sealing ring is sleeved at the port of the explosion venting pipe during communication, and then the fixing ring is arranged outside the sealing ring and fixed with an explosion venting hole in the wall body of the underground machine room or the explosion venting chamber or the turning chamber. The fixing ring is directly embedded and poured in the concrete light body, or is fixed with the explosion venting hole through cement mortar.

Preferably, as the optimization of the technical scheme, the modified asphalt paint is preferably coated on the part above the ground of the explosion-venting pipe culvert for preventing oxidation and rainwater acidification corrosion; and (3) firstly, steel wire mesh cement mortar is used for smearing and winding the explosion venting pipe culverts, then cement mortar is smeared, and finally molten asphalt is pasted and coated.

As the optimization of above-mentioned technical scheme, the preferred lets out explode cell and turn cell and lay for waterproof bed course, bearing layer, bottom plate, vertical maintenance structure, roof from bottom to top in proper order, wherein vertical maintenance structure with the roof pastes waterproofing membrane outward after leveling through cement mortar.

The technical scheme of the invention provides a pipe culvert type explosion venting port of an underground combustion equipment machine room and a construction method. After the explosion venting pipes and culverts are in socket joint, a sealing layer is covered at the joint; the ports of the explosion venting pipe, the underground machine room and the explosion venting chamber are sealed by sealing rings and then fixed by reinforcing rings.

The explosion venting pipe culvert has the advantages that (1) the explosion venting pipe culvert is flexible to lay, so that the explosion venting port can be flexibly led to other suitable positions without changing the site selection of a machine room, the site selection of an underground machine room is not limited by ground landscape planning and fireproof intervals, the applicability of the scheme is greatly improved, the explosion venting passage is flexible, and the construction cost is reduced. (2) Need not set up the entrance to a cave on secret computer lab roof, with the entrance to a cave transfer to the side wall structurally, reduce the structural cost of the anti-shear force on roof, to the reinforcement expense that has reduced the project. (3) The movable characteristic of the explosion venting port can reduce noise interference to personnel in the building. (4) By adopting a natural explosion venting mode, the situation of interlinked sympathetic explosions of adjacent personnel and structures can not be caused, and secondary damage to the periphery is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a pipe culvert explosion venting port of an underground combustion equipment room provided by an embodiment of the invention.

Fig. 2 is a partially enlarged view of fig. 1 at a dotted line.

Fig. 3 is a schematic structural diagram of a fixing ring according to the technical solution of the present invention.

Fig. 4 is a flowchart of a method for constructing a pipe culvert explosion venting port of an underground combustion equipment room according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Now, the technical solution of the present invention is described with reference to a specific embodiment, fig. 1 is a schematic structural diagram of a pipe culvert explosion venting port of an underground combustion equipment room provided by the embodiment of the present invention, and fig. 2 is a partially enlarged view of a dotted line of fig. 1, as shown in fig. 1 and fig. 2, including: explosion venting pipe culvert 11, explosion venting chamber 13, lightweight roof 14, turning chamber 12, reinforcing ring 23, sealing ring 22.

First as shown in fig. 1: the plurality of explosion venting pipe culverts 11 are connected in sequence to form a plurality of explosion venting pipes. One end of an explosion venting pipe is communicated with an explosion venting hole on the side wall of the underground machine room, and the other end of the explosion venting pipe is communicated with an explosion venting hole on the side wall of the turning small chamber 12. The explosion venting hole on the other side wall of the turning small chamber 12 is communicated with one section of another explosion venting pipe, and the other end of the explosion venting pipe is communicated with the explosion venting hole on the side wall of the explosion venting small chamber 13. The explosion venting chamber 13 is communicated with the ground, and a light house is covered at the communication position.

The turning cell 12 is a structure for realizing the turning function of the squib, and may not be provided if the squib does not need to be bent. The turning small chamber 12 is a chamber with a bending structure, the net cross-sectional area of the inside of the turning small chamber is not smaller than that of the explosion venting pipe, and an explosion venting hole of the turning small chamber 12 is arranged on the side wall of the turning small chamber. The wall body is of a cast-in-place reinforced concrete or masonry structure, and a waterproof cushion layer, a bearing layer, a bottom plate, a vertical maintenance structure and a top plate are sequentially arranged in the turning small chamber 12 from bottom to top. And the vertical maintenance structure and the top plate cement mortar are leveled and then attached to the waterproof roll.

The explosion venting chamber 13 is exposed to the ground for at least 600 mm, and the top of the explosion venting chamber is provided with a mass less than 120Kg/m²The clear cross-sectional area of the inside of the explosion venting chamber 13 of the lightweight roof 14 is not less than the clear cross-sectional area of the explosion venting pipe. Explosion venting chamber 13 is sequentially provided with a waterproof cushion layer, a bearing layer, a bottom plate, a vertical maintenance structure and a top plate from bottom to top. And the vertical maintenance structure and the top plate cement mortar are leveled and then attached to the waterproof roll. The outer edge of the light roof 14 is larger than the outer edge of the explosion venting chamber 13, so that the explosion opening of the explosion venting chamber 13 can be completely covered, and gypsum or cement mortar is filled in the gap between the light roof 14 and the explosion venting chamber 13 for dense waterproof and insect-proof treatment.

Furthermore, the explosion venting pipe culvert 11 is connected in a socket joint manner, a sealing layer is covered at the joint after butt joint, the sealing layer is composed of a steel wire mesh cement mortar smearing belt, a cement mortar coating and asphalt in sequence, and corrosion and insect prevention can be achieved. The butt joint surface of the explosion venting pipe culvert 11 is provided with a socket groove and a socket bulge which correspond to the butt joint surface of the next section of explosion venting pipe culvert 11.

Referring to fig. 2: the explosion venting holes of the explosion venting pipe and the underground machine room, the explosion venting holes of the explosion venting pipe and the explosion venting chamber 13, and the explosion venting holes of the explosion venting pipe and the turning chamber 12 are sealed by sealing rings 22 and then fixed by reinforcing rings 23, and the sealing rings 22 play a role in sealing and water proofing. Further, the wall 24 shown in fig. 2 is a wall of the turn cabin 12, and only the connection relationship between the explosion venting pipe and the wall will be specifically described. The connection of the explosion venting pipe with the underground machine room and the explosion venting hole of the explosion venting chamber 13 can refer to fig. 2.

The sealing ring 22 is a rubber ring, the inner diameter of which is the same as the outer diameter of the explosion venting pipe culvert 11, and the ring width of which is not less than that of the reinforcing ring 23. The thickness of the sealing ring 22 is the difference between the outer diameter of the explosion venting pipe culvert 11 and the inner diameter of the reinforcing ring 23, and is increased by 3-5mm, wherein 3-5mm is the expansion amount of rubber.

As shown in fig. 3: the reinforcing ring 23 is composed of an inner ring 31, ribs 32, and an outer ring 33. The reinforcing ring 23 is a steel ring structure, the rib plate 32 comprises an annular rib plate 32 and a sheet rib plate 32, and a plurality of sheet rib plates 32 are uniformly arranged between the inner ring 31 and the annular rib plate 32 and are connected by welding; the outer ring 33 is arranged outside the annular rib plate 32 and is connected with the annular rib plate 32 through welding, and the width of the outer ring 33 is consistent with the thickness of the vertical maintenance structure of the explosion venting pipe culvert 11, the machine room outer wall and the explosion venting chamber 13. The inner and outer rings 33 below DN800 are made of steel pipes and steel plates, and the inner and outer rings more than DN800 are made of steel plates by splicing. The width of the outer ring 33 of the reinforcing ring 23 is consistent with the thickness of the vertical maintenance structures of the explosion venting pipe culvert 11, the outer wall of the machine room and the explosion venting chamber 13.

In the present invention, the clear cross-sectional areas of the interiors of the explosion venting chamber 13 and the turn chamber 12 may be different but larger than the sum of the cross-sectional areas of the culvert diameters of the respective explosion vents.

Now, the construction method for constructing the pipe culvert type explosion venting port of the underground combustion equipment room provided by the invention is described with reference to a flow chart, as shown in fig. 4:

step 101, forming the explosion venting pipe by carrying out socket joint on a plurality of sections of explosion venting pipes according to project requirements.

The explosion venting pipe culvert 11 needs to be externally sealed: firstly, steel wire mesh cement mortar is used for smearing and winding, then cement mortar is smeared, and finally molten asphalt is pasted and smeared. The explosion venting pipe culvert 11 is composed of a plurality of sections of cylindrical cement pipes, the material of each section of explosion venting pipe culvert 11 needs to be fireproof and corrosion resistant, the fire-resistant grade equal to that of an underground machine room is met, and the ground accumulated load is not more than 1OkN/m²The concrete prefabricated pipe for municipal drainage engineering is adopted, the high-strength HDPE pipe for municipal drainage can be used, and the ground stacking load is more than 1OkN/m²Concrete jacking pipes are adopted, more than II-type jacking pipe materials are generally selected, direct-buried construction is only needed, and the sum of the cross-sectional areas of the explosion venting pipe culvert 11 is not less than the explosion venting area required by an underground machine room. The explosion venting pipe culvert 11 is laid on an undisturbed soil foundation with high bearing capacity and high bearing strength, or a soil foundation which is excavated and then backfilled to be compact. The backfill dense materials are generally graded broken stones, natural graded sandstone, medium sand, coarse sand and other sands from bottom to top, and the compaction coefficient and the section manufacturing method can be referred to national standard drawing set 04S516 concrete drainage pipeline foundation and connector.

And 102, building an explosion venting chamber and a turning chamber and forming an explosion venting hole.

Explosion venting chamber 13 and turning chamber 12 are laid in turn from bottom to top as waterproof cushion layer, bearing layer, bottom plate, vertical maintenance structure, roof, wherein the vertical maintenance structure with the roof is leveled through cement mortar and is pasted waterproofing membrane outward.

In step 102, for a new project, the fixing ring is directly embedded and poured in the concrete light body, and reinforcing meshes in the fixing ring are welded and connected; and directly forming an explosion venting hole for the reconstruction project.

And 103, sleeving a sealing ring at the port of the explosion venting pipe.

And step 104, fixing one end of the explosion venting pipe with an explosion venting hole of the underground machine room.

And step 105, fixing the other end of the explosion venting hole of the wall body on one side of the turning chamber.

And step 106, fixing one end of the other explosion venting pipe with an explosion venting hole of the wall body on the other side of the turning small chamber.

And step 107, fixing the other end of the explosion venting chamber with an explosion venting hole of a wall body on one side of the explosion venting chamber.

For the transformation project, in the fixing process of step 104-107: the sealing ring 22 is sleeved at the port of the explosion venting pipe (the fixing ring is arranged outside the sealing ring 22), and then the sealing ring is fixed with the hole explosion venting hole on the wall of the underground machine room or the explosion venting chamber 13 or the turning chamber 12 through cement mortar.

And 108, coating modified asphalt paint on the part above the ground of each explosion venting pipe culvert for preventing oxidation and rainwater acidification corrosion.

And step 109, installing a light roof on the explosion venting chamber.

The technical solution of the present invention will be further explained with reference to specific scenarios:

when gas leakage and explosion occur in the underground machine room, the generated blast and instantaneous high pressure can be discharged to the explosion venting chamber 13 along the explosion venting pipe and the turning chamber 12 (optional) and are transmitted upwards through the explosion venting chamber 13, and the light roof can be broken or separated from the original position during explosion, so that the purpose of venting the explosion blast is achieved, and the technical scheme of the invention is realized. By adopting a natural explosion venting mode, the situation of interlinked sympathetic explosions of adjacent personnel and structures can not be caused, and the secondary damage to the surrounding environment can be avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: it is still possible to modify the solutions described in the previous embodiments or to substitute some or all of the technical features, for example, the tube shape, box shape, and arch shape of the explosion venting pipe culvert and the material changes of the pipe culvert and the explosion venting chamber are all within the scope of the patent right; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.