Pipeline support hanger structure for high-flame-retardant nuclear power station

Abstract

The utility model discloses a pipeline support hanger structure for a high flame-retardant nuclear power station, which comprises a base, support tables are symmetrically mounted at the top end of the base, a lower support semi-ring is mounted at the top end of each support table, a top cover semi-ring is arranged above each lower support semi-ring, and the lower support semi-rings and the top cover semi-rings are mounted to form a limiting hoop. Flame-retardant components are mounted in the lower support semi-ring and the top cover semi-ring, and a mounting component is mounted at one end of the top cover semi-ring; the flame-retardant assembly comprises the internal arc-shaped cavities formed in the lower supporting semi-ring and the top cover semi-ring, the inserting grooves are formed in the top walls of the two ends of the lower supporting semi-ring at equal intervals, in the working process, the supporting plate is driven to move longitudinally after the arranged screw rods are screwed, and when the inserting pipes on the top cover semi-ring are disengaged from the inserting grooves in the lower supporting semi-ring, the supporting plate can move vertically. The top cover semi-ring can be opened, the pipeline can be conveniently installed, meanwhile, when the insertion pipe on the top cover semi-ring is connected with the insertion groove in the lower supporting semi-ring in a clamped mode, the lower supporting semi-ring and the top cover semi-ring are fixed, and the pipeline is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline supports and hangers, in particular to a highly flame-retardant pipeline support and hanger structure for nuclear power plants. Background Art

[0002] The structural design of pipe supports and hangers for nuclear power plants is critical to ensuring the safe and stable operation of the piping system. These supports and hangers must not only bear the weight and load of the pipes, but also limit displacement, control vibration, and consider special requirements such as corrosion resistance and durability. Existing pipe supports and hangers generally consist of a base, a bottom ring, and a top ring. The pipe is placed inside the bottom ring, and the top ring is then installed above the bottom ring and secured with bolts to limit the pipe's position. However, these supports and hangers still have the following drawbacks:

[0003] Due to the high temperature inside the nuclear power plant, fire may occur, and the pipeline is an important structure for gas transportation. The existing pipeline supports and hangers cannot produce flame retardant effects on the pipelines, and the protection effect is poor. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a highly flame-retardant pipe support and hanger structure for nuclear power plants, which effectively solves the problem that the existing pipe support and hanger cannot produce flame retardant effect on the pipe and has poor protection effect.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a highly flame-retardant pipe support and hanger structure for a nuclear power plant, comprising a base, a support platform symmetrically mounted on the top of the base, a lower support half-ring mounted on the top of the support platform, a top cover half-ring disposed above the lower support half-ring, the lower support half-ring and the top cover half-ring being mounted to form a limiting hoop, a flame-retardant assembly being mounted inside the lower support half-ring and the top cover half-ring, and a mounting assembly being mounted on one end of the top cover half-ring;

[0006] The flame retardant component includes an internal arc-shaped cavity opened inside the lower supporting semi-ring and the top cover semi-ring. Slots are equidistantly provided on the top walls at both ends of the lower supporting semi-ring. The slots are connected to the internal arc-shaped cavity on the lower supporting semi-ring. Insert pipes are equidistantly installed on the bottom walls at both ends of the top cover semi-ring. The insert pipes are connected to the internal arc-shaped cavity on the top cover semi-ring. The insert pipes are inserted into the interior of the slots, and the outer walls of the insert pipes are tightly attached to the inner walls of the slots. Nozzles are installed at equal angles on both sides of the limiting ring hoop, and the nozzles are connected to the internal arc-shaped cavity.

[0007] Preferably, a second communicating groove is provided inside the base, and a first communicating groove is provided inside the support platform at equal intervals. The bottom end of the first communicating groove is connected to the second communicating groove, and the top end of the first communicating groove is connected to the internal arc-shaped cavity on the lower supporting semi-ring. A connecting air intake pipe is installed on one side of the base, one end of the connecting air intake pipe is connected to the second communicating groove, and the other end of the connecting air intake pipe is connected to the nitrogen gas source.

[0008] Preferably, the mounting assembly includes a rotating head fixedly mounted on one end of the top cover half ring, a support plate is provided below the rotating head, two swivel seats are symmetrically mounted on the top of the support plate, the two swivel seats are rotatably connected to the rotating heads at one end of the two top cover half rings respectively, and a handle is installed on the top of the top cover half ring.

[0009] Preferably, two guide rods are symmetrically installed on the top of the base, the guide rods are slidably connected to the supporting plate, and a top limiting plate is installed on the top of the guide rods, and the diameter of the top limiting plate is larger than the diameter of the guide rods.

[0010] Preferably, a screw is rotatably mounted on the support plate, and two longitudinal movement limit plates are mounted on the screw, and the two longitudinal movement limit plates are in contact with the upper and lower surfaces of the support plate respectively.

[0011] Preferably, a screw barrel is installed at the top of the base, the screw is threadedly connected to the screw barrel, and a handle is installed at the top of the screw.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] During operation, the supporting plate is driven to move longitudinally by turning the screw rod. When the insert tube on the top cover half ring is disengaged from the slot on the lower support half ring, the top cover half ring can be opened to facilitate the installation of the pipeline. At the same time, when the insert tube on the top cover half ring is engaged with the slot on the lower support half ring, the lower support half ring and the top cover half ring are fixed to complete the position limiting of the pipeline.

[0014] During operation, after the provided insert tube is inserted into the slot, the internal arc-shaped cavities on the lower support half ring and the top cover half ring are connected. When a fire occurs, the nitrogen gas source can enter the two internal arc-shaped cavities and be sprayed from the nozzle toward the outer surface of the pipe, cooling the pipe and forming a nitrogen protective layer on the outside of the pipe, which has a flame retardant effect on the pipe and improves the protection of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached figure:

[0017] Figure 1 This is a schematic diagram of the structure of a highly flame-retardant pipe support and hanger for a nuclear power plant according to the utility model;

[0018] Figure 2 This is a schematic diagram of the flame retardant component structure of the present utility model;

[0019] Figure 3This is a schematic diagram of the structure of the lower support half ring and the top cover half ring of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation component structure of the utility model.

[0021] In the figure: 1. Base; 2. Support platform; 3. Lower supporting half ring; 4. Top cover half ring; 5. Flame retardant component; 501. Internal arc cavity; 502. Slot; 503. Insert tube; 504. First connecting groove; 505. Second connecting groove; 506. Nozzle; 6. Mounting component; 601. Rotating head; 602. Support plate; 603. Rotating seat; 604. Guide rod; 605. Top limit plate; 606. Screw; 607. Longitudinal limit plate; 608. Turning handle; 609. Screw barrel; 610. Handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Embodiment 1, by Figure 1-4 The utility model relates to a highly flame-retardant pipe support and hanger structure for a nuclear power plant, comprising a base 1, a support platform 2 being symmetrically mounted on the top of the base 1, a lower supporting half ring 3 being mounted on the top of the support platform 2, a top cover half ring 4 being disposed above the lower supporting half ring 3, a limiting hoop being formed after the lower supporting half ring 3 and the top cover half ring 4 are mounted, a flame-retardant component 5 being mounted inside the lower supporting half ring 3 and the top cover half ring 4, and a mounting component 6 being mounted on one end of the top cover half ring 4;

[0024] The flame retardant component 5 includes an internal arc-shaped cavity 501 opened inside the lower supporting semi-ring 3 and inside the top cover semi-ring 4, and slots 502 are equidistantly provided on the top walls at both ends of the lower supporting semi-ring 3, and the slots 502 are connected to the internal arc-shaped cavity 501 on the lower supporting semi-ring 3, and cannulas 503 are equidistantly installed on the bottom walls at both ends of the top cover semi-ring 4, and the cannulas 503 are connected to the internal arc-shaped cavity 501 on the top cover semi-ring 4, and the cannulas 503 are inserted into the interior of the slots 502, and the outer walls of the cannulas 503 are tightly attached to the inner walls of the slots 502, and nozzles 506 are installed at equal angles on both sides of the limiting hoop, and the nozzles 506 are connected to the internal arc-shaped cavity 501, a second connecting groove 505 is provided inside the base 1, and a first connecting groove is equidistantly provided inside the support platform 2 504, the bottom end of the first connecting groove 504 is connected to the second connecting groove 505, and the top end of the first connecting groove 504 is connected to the internal arc cavity 501 on the lower supporting half ring 3. A connecting air intake pipe is installed on one side of the base 1, one end of the connecting air intake pipe is connected to the second connecting groove 505, and the other end of the connecting air intake pipe is connected to the nitrogen gas source. After the cannula 503 is inserted into the slot 502, the internal arc cavity 501 on the lower supporting half ring 3 and the top cover half ring 4 is connected. When a fire occurs, the nitrogen gas from the nitrogen source can enter the two internal arc cavities 501 and be sprayed toward the outer surface of the pipeline from the nozzle 506, cooling the pipeline and forming a nitrogen protective layer on the outside of the pipeline, which has a flame retardant effect on the pipeline and improves the protection of the pipeline.

[0025] The mounting assembly 6 includes a rotating head 601 fixedly mounted on one end of the top cover half ring 4, a support plate 602 is provided below the rotating head 601, two swivel seats 603 are symmetrically mounted on the top of the support plate 602, the two swivel seats 603 are rotatably connected to the rotating heads 601 at one end of the two top cover half rings 4, a handle 610 is mounted on the top of the top cover half ring 4, two guide rods 604 are symmetrically mounted on the top of the base 1, the guide rods 604 are slidably connected to the support plate 602, a top limiting plate 605 is mounted on the top of the guide rods 604, the diameter of the top limiting plate 605 is larger than the diameter of the guide rods 604, a screw 606 is rotatably mounted on the support plate 602, and the screw 60 6 is installed with two longitudinal limit plates 607, and the two longitudinal limit plates 607 are in contact with the upper and lower surfaces of the support plate 602 respectively. A screw barrel 609 is installed on the top of the base 1, and the screw rod 606 is threadedly connected to the screw barrel 609. A turning handle 608 is installed on the top of the screw 606. When the screw 606 is turned, it drives the support plate 602 to move longitudinally. When the insert tube 503 on the top cover half ring 4 is disengaged from the slot 502 on the lower support half ring 3, the top cover half ring 4 can be opened to facilitate the installation of the pipeline. At the same time, when the insert tube 503 on the top cover half ring 4 is engaged with the slot 502 on the lower support half ring 3, the lower support half ring 3 and the top cover half ring 4 are fixed, and the pipeline is limited.

[0026] Working principle: When working, screw rod 606 is turned. Since screw rod 606 is threadedly connected with screw barrel 609, screw rod 606 moves upward, and support plate 602 is slidably connected with guide rod 604, so that support plate 602 moves upward with screw rod 606, thereby driving top cover half ring 4 to move upward until cannula 503 is removed from slot 502. Top cover half ring 4 is pulled upward around swivel seat 603 by handle 610 to open lower support half ring 3, which is convenient for pipeline installation. Pipeline is placed on the inner side of lower support half ring 3. After that, top cover half ring 4 is covered, screw rod 606 is turned in the opposite direction to move support plate 602 downward, so that cannula 503 at the bottom end of top cover half ring 4 is inserted into slot 502 at the top end of lower support half ring 3, and installation is completed.

[0027] When the cannula 503 is inserted into the slot 502, the internal arc-shaped cavities 501 on the lower support half ring 3 and the top cover half ring 4 are connected. When a fire occurs in the pipeline, the pump body of the nitrogen gas source is turned on, so that the nitrogen can enter the two internal arc-shaped cavities 501 through the connecting air inlet pipe, the second connecting groove 505, and the first connecting groove 504, and finally be sprayed toward the pipeline from the nozzle 506, cooling the pipeline and forming a nitrogen protective layer on the outside of the pipeline, which has a flame retardant effect on the pipeline and improves the protection of the pipeline.

Claims

1. A highly flame-retardant pipe support and hanger structure for a nuclear power plant, comprising a base (1), characterized in that: A support platform (2) is symmetrically mounted on the top of the base (1), a lower supporting half ring (3) is mounted on the top of the support platform (2), a top cover half ring (4) is arranged above the lower supporting half ring (3), a limiting hoop is formed when the lower supporting half ring (3) and the top cover half ring (4) are mounted, a flame retardant component (5) is mounted inside the lower supporting half ring (3) and the top cover half ring (4), and a mounting component (6) is mounted on one end of the top cover half ring (4); The flame retardant component (5) comprises an internal arc-shaped cavity (501) opened inside the lower supporting semi-ring (3) and inside the top cover semi-ring (4); slots (502) are evenly spaced on the top walls at both ends of the lower supporting semi-ring (3); the slots (502) are connected to the internal arc-shaped cavity (501) on the lower supporting semi-ring (3); insert tubes (503) are evenly spaced on the bottom walls at both ends of the top cover semi-ring (4); the insert tubes (503) are connected to the internal arc-shaped cavity (501) on the top cover semi-ring (4); the insert tubes (503) are inserted into the slots (502), and the outer wall of the insert tube (503) is tightly attached to the inner wall of the slot (502); nozzles (506) are evenly spaced on both sides of the limiting ring hoop; the nozzles (506) are connected to the internal arc-shaped cavity (501).

2. According to claim 1, a highly flame-retardant pipe support and hanger structure for a nuclear power plant is characterized in that: The base (1) is provided with a second connecting groove (505), and the support platform (2) is provided with first connecting grooves (504) at equal intervals. The bottom end of the first connecting groove (504) is connected to the second connecting groove (505), and the top end of the first connecting groove (504) is connected to the internal arc-shaped cavity (501) on the lower supporting half ring (3). A connecting air intake pipe is installed on one side of the base (1), one end of the connecting air intake pipe is connected to the second connecting groove (505), and the other end of the connecting air intake pipe is connected to a nitrogen gas source.

3. The highly flame-retardant pipe support and hanger structure for a nuclear power plant according to claim 1, characterized in that: The mounting assembly (6) comprises a rotating head (601) fixedly mounted on one end of the top cover half ring (4); a support plate (602) is provided below the rotating head (601); two rotating seats (603) are symmetrically mounted on the top of the support plate (602); the two rotating seats (603) are rotatably connected to the rotating heads (601) at one end of the two top cover half rings (4), respectively; and a handle (610) is mounted on the top of the top cover half ring (4).

4. The highly flame-retardant pipe support and hanger structure for a nuclear power plant according to claim 3 is characterized in that: Two guide rods (604) are symmetrically mounted on the top of the base (1), the guide rods (604) are slidably connected to the support plate (602), and a top limit plate (605) is mounted on the top of the guide rods (604), wherein the diameter of the top limit plate (605) is greater than the diameter of the guide rods (604).

5. The highly flame-retardant pipe support and hanger structure for a nuclear power plant according to claim 3, characterized in that: A screw rod (606) is rotatably mounted on the support plate (602), and two longitudinal movement limiting plates (607) are mounted on the screw rod (606). The two longitudinal movement limiting plates (607) are in contact with the upper and lower surfaces of the support plate (602) respectively.

6. The highly flame-retardant pipe support and hanger structure for a nuclear power plant according to claim 5, characterized in that: A screw barrel (609) is installed at the top of the base (1), the screw rod (606) is threadedly connected to the screw barrel (609), and a turning handle (608) is installed at the top of the screw rod (606).

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