Fireproof partition structure of technical corridor of nuclear power plant

Abstract

The utility model discloses a nuclear power plant technical corridor fireproof partition structure which comprises a main body and a fireproof door, the main body comprises a first keel stand column, a second keel stand column, a third keel stand column, a fourth keel stand column and a plurality of connecting pieces, and the first keel stand column and the second keel stand column are detachably connected with a wall respectively. The third keel stand column and the fourth keel stand column are detachably connected with the nuclear power plant technical corridor. The connecting pieces are detachably and correspondingly connected with the first keel stand column, the second keel stand column, the third keel stand column and the fourth keel stand column. The fireproof door is connected with the third keel stand column or the fourth keel stand column to open and close the access channel. A cable bridge casing pipe and / or a fireproof valve casing pipe are / is arranged between the first keel stand column and the third keel stand column, and a pipeline casing pipe is arranged between the fourth keel stand column and the second keel stand column. The fireproof partition structure of the technical corridor of the nuclear power plant adopts the assembly type fireproof partition and has the advantages of good fire retardance, convenience in installation, high construction efficiency, convenience in secondary crossing and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power technology field especially relates to a nuclear power plant technology corridor fireproof partition structure. BACKGROUND

[0002] The nuclear power plant comprehensive pipe gallery (abbreviation "technology corridor") is the laying place of the required process pipeline and cable for the more than 20 technical buildings in the plant area, a large number of dense cables and all kinds of medium pipelines of about 25 process systems are arranged in the gallery, the total length of the gallery is more than 5km, the center interface is much, the branch is much, and it is very complex. The whole gallery is divided into a big fireproof division and is not set apart, once the fire occurs in the technology corridor, the smoke generated by the cable combustion can spread in the whole gallery, the visibility is almost zero, the on-site fire positioning, fire extinguishing and personnel rescue work are extremely difficult; the rapid spread and expansion of the fire can also cause the interruption of power supply and control information, the nuclear reactor out of control, seriously endanger the nuclear safety level of the nuclear power plant, and even cause huge life and property losses, there is great essential safety risk.

[0003] In order to avoid the spread of fire anywhere along the gallery after the fire occurs, it is usually necessary to set up fire separation. At present, the fire separation of the nuclear power plant is generally made of concrete molding pouring or cement bricklaying, the space requirement for the site is high in the implementation process, and it is generally followed by the construction of the power plant. The related nuclear power plants are in the state of operation, the cables are densely arranged in the technology corridor, the cable bridge is arranged in the longitudinal and transverse space which is small, the implementation quality of the concrete molding pouring or cement bricklaying cannot be guaranteed, the fire separation may have deviations such as incomplete sealing or insufficient thickness in local areas, and the function of the fire separation is degraded.

[0004] The use of concrete molding pouring or cement bricklaying will cause the cable to be condensed together with the concrete, which may damage the cable to some extent, and also cause difficulties in the later cable maintenance and cable replacement work.

[0005] The fire separation made of concrete molding pouring or cement bricklaying has difficulties in arrangement work when new cables are arranged, needs to re-drill holes in the fire separation and re-seal, and will cause certain influence on the quality and service life of the fire separation.

[0006] The use of concrete molding pouring or cement bricklaying has high risk in the implementation of the site during the operation stage of the power plant, and the implementation efficiency of the site is low.

[0007] The fire separation made of concrete molding pouring or cement bricklaying is not convenient for the later secondary crossing and maintenance. UTILITY MODEL CONTENTS

[0008] The technical problem to be solved by the utility model lies in providing a nuclear power plant technology corridor fireproof partition structure.

[0009] The utility model discloses a technical problem of solving is: construct a kind of nuclear power plant technical corridor fireproof partition structure, including main part and fire door, the main part includes first keel stand, second keel stand, third keel stand, fourth keel stand and a plurality of connecting pieces, the first keel stand with the second keel stand is oppositely arranged, and the first keel stand with the second keel stand is respectively with the detachable connection of wall body, the third keel stand with the fourth keel stand is located between the first keel stand with the second keel stand, the upper and lower ends of the third keel stand with the fourth keel stand are respectively with the detachable connection of the top surface and ground of nuclear power plant technical corridor, the third keel stand is close to the first keel stand side and sets up, the fourth keel stand is close to the second keel stand side and sets up, and the third keel stand with the fourth keel stand forms access passage between the third keel stand with the fourth keel stand;

[0010] The connecting piece is detachably connected to the first keel stand, the second keel stand, the third keel stand and the fourth keel stand; the fire door is connected to the third keel stand or the fourth keel stand to open and close the access passage.

[0011] The first keel stand and the third keel stand are provided with a cable bridge sleeve and / or a fire valve sleeve, and the fourth keel stand and the second keel stand are provided with a pipe sleeve.

[0012] In some embodiments, the nuclear power plant technical corridor fireproof partition structure further includes a first blast-resistant fireboard and a second blast-resistant fireboard, the first blast-resistant fireboard connects the inner and outer sides of the first keel stand and the third keel stand, and the second blast-resistant fireboard connects the inner and outer sides of the second keel stand and the fourth keel stand.

[0013] In some embodiments, the space between the first blast-resistant fireboards is provided with a first fire-retardant member.

[0014] In some embodiments, the space between the second blast-resistant fireboards is provided with a second fire-retardant member.

[0015] In some embodiments, the first fire-retardant member and the second fire-retardant member include fire-retardant rock wool.

[0016] In some embodiments, the first keel stand, the second keel stand, the third keel stand and the fourth keel stand are all channel steels.

[0017] In some embodiments, the upper and lower ends of the first keel stand and the second keel stand are detachably connected to the top surface and the ground of the nuclear power plant technical corridor.

[0018] In some embodiments, the upper and lower ends of the first keel column, the second keel column, the third keel column and the fourth keel column are detachably connected with the top surface and the ground of the nuclear power plant technical corridor through connecting plates.

[0019] In some embodiments, the connecting plate is in an L-shaped structure.

[0020] In some embodiments, the fireproof door comprises a Class A fireproof door.

[0021] The nuclear power plant technical corridor fireproof partition structure breaks the conventional fireproof partition made of concrete molding and pouring or cement bricks, and adopts the assembly type fireproof partition with a detachable connection mode of the main body structure in combination with the use of space, environment and the like. In addition to ensuring the basic function of the fireproof partition, the installation of the fireproof partition in a narrow space is solved, the industrial safety risk of on-site operation is reduced, and the on-site operation efficiency is improved. The cable bridge sleeve pipe, fire valve sleeve pipe and pipeline sleeve pipe are arranged, which facilitates the later related modification work and reduces the influence of on-site modification construction on the quality and service life of the fireproof partition. The nuclear power plant technical corridor fireproof partition structure adopts the assembly type fireproof partition, which has the advantages of good fire resistance, convenient installation, high construction efficiency, convenient secondary crossing and the like. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0023] Figure 1 is a structural schematic view of the nuclear power plant technical corridor fireproof partition structure in some embodiments of the utility model;

[0024] Figure 2 is Figure 1 the cross-sectional view of the nuclear power plant technical corridor fireproof partition structure along A-A line in

[0025] Figures 3-4 is a structural schematic view of the first keel column and the second keel column in some embodiments of the utility model;

[0026] Figures 5-6 is a structural schematic view of the third keel column and the fourth keel column in some embodiments of the utility model;

[0027] Figures 7-9 is a structural schematic view of the connecting piece in some embodiments of the utility model;

[0028] Figures 10-11 is a structural schematic view of the connecting plate in some embodiments of the present application;

[0029] Figures 12-14 is a structural schematic view of the connecting limiting piece in some embodiments of the present application;

[0030] Figure 15 is a structural schematic view of the cable bridge sleeve in some embodiments of the present application;

[0031] Figure 16 is a structural schematic view of the fire valve sleeve in some embodiments of the present application. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and are not intended to indicate that the devices or elements referred to must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0033] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the following description, for the purposes of explanation and not limitation, specific details are set forth such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0035] Referring to Figures 1-16 The utility model discloses a kind of nuclear power plant technical corridor fireproof partition structure, using assembly type fireproof partition, with good fire resistance, installation is convenient, construction efficiency is high, secondary crossing is convenient and the like advantages.

[0036] As Figures 1-2 Indicated, the nuclear power plant technical corridor fireproof partition structure includes main body 10 and fire door 20, the main body 10 includes first keel upright column 11, second keel upright column 12, third keel upright column 13, fourth keel upright column 14 and several connecting pieces 15, the first keel upright column 11 is oppositely arranged with the second keel upright column 12, and the first keel upright column 11 and the second keel upright column 12 are respectively detachably connected with wall body 100, the third keel upright column 13 and the fourth keel upright column 14 are located between the first keel upright column 11 and the second keel upright column 12, the upper and lower ends of the third keel upright column 13 and the fourth keel upright column 14 are respectively detachably connected with the top surface and ground of nuclear power plant technical corridor, the third keel upright column 13 is close to the side of the first keel upright column 11 and is arranged, the fourth keel upright column 14 is close to the side of the second keel upright column 12 and is arranged, access passage is formed between the third keel upright column 13 and the fourth keel upright column 14.

[0037] The connecting piece 15 is detachably connected with the first keel upright column 11, the second keel upright column 12, the third keel upright column 13 and the fourth keel upright column 14. The fire door 20 is connected with the third keel upright column 13 or the fourth keel upright column 14, to open and close the access passage.

[0038] The first keel column 11 and the third keel column 13 are provided with a cable bridge sleeve 30 and / or a fire valve sleeve 40, and the fourth keel column 14 and the second keel column 12 are provided with a pipeline sleeve 50. Preferably, the first keel column 11 and the third keel column 13 are provided with a cable bridge sleeve 30 and a fire valve sleeve 40, and the fourth keel column 14 and the second keel column 12 are provided with a plurality of pipeline sleeves 50, which are arranged in the height direction and the width direction of the nuclear power plant technical corridor fireproof partition structure. As shown in FIG. 8, the cable bridge sleeve 30 can be used for the cable bridge 200 to pass through, and the pipeline sleeve 50 can be used for the pipeline 300 to pass through. When the corresponding pipe and line pass through, the sleeve is used for protection. The sleeve can be prefabricated outside the field, and the gap between the sleeve and the pipeline is filled with A-level fireproof sealing material (mastic). When the cable bridge sleeve 30, the fire valve sleeve 40, and the pipeline sleeve 50 do not pass through the pipeline, A-level fireproof sealing material (mastic) can be used for filling and sealing. Figure 2

[0039] As shown in FIG. 8, the nuclear power plant technical corridor fireproof partition structure further includes a first anti-explosion fireproof plate 60 and a second anti-explosion fireproof plate 70. The first anti-explosion fireproof plate 60 is connected to the inner and outer sides of the first keel column 11 and the third keel column 13. The first anti-explosion fireproof plate 60 can be arranged away from the cable bridge sleeve 30 and / or the fire valve sleeve 40. Alternatively, the first anti-explosion fireproof plate 60 can be provided with a first through hole, which is in communication with the inner cavity of the cable bridge sleeve 30 and / or the fire valve sleeve 40. Figure 2

[0040] The second anti-explosion fireproof plate 70 is connected to the inner and outer sides of the second keel column 12 and the fourth keel column 14. The second anti-explosion fireproof plate 70 can be arranged away from the pipeline sleeve 50. Alternatively, the second anti-explosion fireproof plate 70 can be provided with a second through hole, which is in communication with the inner cavity of the pipeline sleeve 50.

[0041] In some embodiments, the fire resistance limit of the first anti-explosion fireproof plate 60 and the second anti-explosion fireproof plate 70 is greater than 3 hours. The first anti-explosion fireproof plate 60 and the second anti-explosion fireproof plate 70 can be made of limited cement board composite material.

[0042] In some embodiments, the space between the first anti-explosion fireproof plate 60 is provided with a first fire retardant. The space between the second anti-explosion fireproof plate 70 is provided with a second fire retardant.

[0043] ​​The first fire-retardant member and the second fire-retardant member comprise fire-retardant rock wool. The fire-retardant rock wool can be, but is not limited to, A-class 75mm fire-retardant rock wool. The use of fire-retardant rock wool for filling facilitates the later maintenance and replacement of cables, pipes and other equipment.

[0044] As shown in Figure 1 some embodiments, the first, second, third and fourth keel columns 11, 12, 13 and 14 are all channel steels. The first, second, third and fourth keel columns 11, 12, 13 and 14 can all be selected as No. 10 channel steels.

[0045] As shown in Figure 1 some embodiments, the upper and lower ends of the first and second keel columns 11 and 12 are detachably connected to the top surface and the ground of the nuclear power plant technical corridor, respectively. That is, the upper and lower ends of the first, second, third and fourth keel columns 11, 12, 13 and 14 are detachably connected to the top surface and the ground of the nuclear power plant technical corridor, respectively. In order to avoid fire hazards caused by welding implementation in the nuclear power plant technical corridor, the upper and lower ends of the first, second, third and fourth keel columns 11, 12, 13 and 14 are connected by expansion bolts or fastening screws for part connection and fixed connection around the nuclear power plant technical corridor. The expansion bolts are M10 expansion bolts.

[0046] In some embodiments, the specifications of the first, second, third and fourth keel columns 11, 12, 13 and 14 can be referred to Figures 3-6 for implementation, which will not be described here again.

[0047] In some embodiments, the connecting member 15 and the first, second, third and fourth keel columns 11, 12, 13 and 14 can be connected by M8 bolts. Preferably, the connecting member 15 can be a U-shaped channel steel, such as a No. 10 channel steel. The specifications of the connecting member 15 can be referred to Figures 7-9 for implementation, which will not be described here again.

[0048] As shown in Figure 1 some embodiments, the upper and lower ends of the first, second, third and fourth keel columns 11, 12, 13 and 14 are detachably connected to the top surface and the ground of the nuclear power plant technical corridor through the connecting plates 16. The connecting plates 16 are L-shaped structures. The specifications of the connecting plates 16 can be referred to Figures 10-11 for implementation, which will not be described here again.

[0049] As shown in Figure 1As shown, in some embodiments, the second keel column 12 and the fourth keel column 14 can also be connected and fixed by connecting limiters 17, the number of which can be multiple, and the multiple connecting limiters 17 are arranged along the height direction, and the connecting limiters 17 can be C-shaped steel of 2mm type, but are not limited to this. Figures 12-14 The implementation is not described here.

[0050] In some embodiments, the fireproof door 20 includes a Class A fireproof door.

[0051] In some embodiments, the cable bridge sleeve 30 can refer to the specification Figure 15 The implementation is not described here.

[0052] In some embodiments, the fire valve sleeve 40 can refer to the specification Figure 16 The implementation is not described here.

[0053] The nuclear power plant technical corridor fireproof partition structure breaks the conventional fireproof partition made of concrete molding and pouring or cement bricks, and uses a detachable connection mode (such as expansion bolts or fastening screws) of the main body 10 structure assembly type fireproof partition combined with space, environment, etc.

[0054] In addition to ensuring the basic function of the fireproof partition, it solves the installation of the fireproof partition in a small space, reduces the industrial safety risk of on-site operation, and improves the efficiency of on-site operation.

[0055] Using an assembly type fireproof partition also facilitates the maintenance and replacement of pipes, equipment, cables, etc. that pass through the fireproof partition.

[0056] Setting the cable bridge sleeve 30, the fire valve sleeve 40, and the pipe sleeve 50 also facilitates later related modification work and reduces the impact of on-site modification construction on the quality and service life of the fireproof partition.

[0057] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0058] It can be understood that the above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, any equivalent transformation and modification within the scope of the utility model patent claim should belong to the scope of the utility model patent claim.

Claims

1. A fireproof partition structure for a technical corridor of a nuclear power plant, characterized in that, The application relates to a nuclear power plant technical corridor fireproof partition structure, which comprises a main body (10) and a fireproof door (20), the main body (10) comprises a first keel column (11), a second keel column (12), a third keel column (13), a fourth keel column (14) and a plurality of connecting pieces (15), the first keel column (11) and the second keel column (12) are oppositely arranged, and the first keel column (11) and the second keel column (12) are respectively detachably connected with a wall body (100), the third keel column (13) and the fourth keel column (14) are located between the first keel column (11) and the second keel column (12), the upper and lower ends of the third keel column (13) and the fourth keel column (14) are respectively detachably connected with the top surface and the ground of a nuclear power plant technical corridor, the third keel column (13) is arranged close to one side of the first keel column (11), the fourth keel column (14) is arranged close to one side of the second keel column (12), and an access channel is formed between the third keel column (13) and the fourth keel column (14). The connecting pieces (15) are detachably connected with the first keel column (11), the second keel column (12), the third keel column (13) and the fourth keel column (14); the fireproof door (20) is connected with the third keel column (13) or the fourth keel column (14) to open and close the access channel. Cable bridge sleeves (30) and / or fireproof valve sleeves (40) are arranged between the first keel column (11) and the third keel column (13), and pipeline sleeves (50) are arranged between the fourth keel column (14) and the second keel column (12).

2. The fire break structure for a technical corridor of a nuclear power plant according to claim 1, characterized by, The nuclear power plant technical corridor fireproof partition structure further comprises a first anti-explosion fireproof plate (60) and a second anti-explosion fireproof plate (70), the first anti-explosion fireproof plate (60) is connected with the inner and outer side surfaces of the first keel column (11) and the third keel column (13), and the second anti-explosion fireproof plate (70) is connected with the inner and outer side surfaces of the second keel column (12) and the fourth keel column (14).

3. The fire break structure for a technical corridor of a nuclear power plant according to claim 2, characterized by, First fireproofing pieces are arranged in the space between the first anti-explosion fireproof plates (60).

4. The fire break structure for a technical corridor of a nuclear power plant according to claim 3, characterized by, Second fireproofing pieces are arranged in the space between the second anti-explosion fireproof plates (70).

5. The fire break structure for a technical corridor of a nuclear power plant according to claim 4, characterized by, The first fireproofing pieces and the second fireproofing pieces comprise fireproofing rock wool.

6. The fire barrier structure for a technical corridor of a nuclear power plant according to claim 1, characterized in that, The first keel column (11), the second keel column (12), the third keel column (13) and the fourth keel column (14) are all channel steels.

7. The fire barrier structure for a technical corridor of a nuclear power plant according to claim 1, characterized in that, The upper and lower ends of the first keel column (11) and the second keel column (12) are respectively detachably connected with the top surface and the ground of the nuclear power plant technical corridor.

8. The fire barrier structure for a technical corridor of a nuclear power plant according to claim 7, characterized in that, The upper and lower ends of the first keel column (11), the second keel column (12), the third keel column (13) and the fourth keel column (14) are respectively detachably connected with the top surface and the ground of the nuclear power plant technical corridor through connecting plates (16).

9. The fire barrier structure for a technical corridor of a nuclear power plant according to claim 8, characterized in that, The connecting plates (16) are L-shaped structures.

10. The fire barrier structure for a technical corridor of a nuclear power plant according to claim 1, characterized in that, The fire door (20) comprises a Class A fire door. The fire door (20) comprises a Class A fire door.

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