Nuclear fluid pipeline filter

Abstract

The utility model discloses a nuclear fluid pipeline filter which comprises a confluence pipeline and a supporting frame, the top ends of the two sides of the outer side wall of the confluence pipeline are each provided with an installation assembly used for fixedly installing the supporting frame on the confluence pipeline, and corrugated filtering fin sets are evenly arranged on the lower surface of the supporting frame. Openings matched with the corrugated filtering fin set are evenly formed in the upper surface of the confluence pipeline, the mounting assembly comprises mounting bottom plates fixedly connected to the top ends of the two sides of the outer side wall of the confluence pipeline, and the sides, away from the confluence pipeline, of the mounting bottom plates are fixedly connected with connecting plates. According to the utility model, the confluence pipeline, the support frame, the mounting assembly, the corrugated filtering fin group and the opening are matched, so that the mounting stability of the support frame and the corrugated filtering fin group is ensured, and meanwhile, the dismounting efficiency of the support frame is improved as much as possible; and therefore, the time for workers to be exposed in a nuclear radiation environment when the workers disassemble and assemble the support frame and maintain the corrugated filtering fin group is reduced as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant safety equipment technical field, concretely is a nuclear fluid pipeline filter. BACKGROUND

[0002] Emergency core cooling system (ECCS) is the key component of nuclear reactor safety system, its main function is when the reactor occurs loss of coolant accident (LOCA) etc. emergency, injects cooling water to the core promptly, to take away the residual heat generated by the core, prevents the core from melting, avoids radioactive material leakage to the environment, thereby guarantees the life safety of nuclear power plant staff and surrounding residents and the stability of ecological environment, and in the use process, generally needs to adopt fluid pipeline type filter to filter the impurities in cooling water.

[0003] The existing nuclear fluid pipeline filter mostly uses a plurality of bolts to fix and install the filter on the confluence pipeline, but this installation mode can cause the time required for disassembling and maintaining the filter to be longer, thereby prolonging the exposure time of the staff in the nuclear radiation environment, which violates the ALARA (as low as reasonably achievable) principle. UTILITY MODEL CONTENTS

[0004] In order to solve the defects that the time required for disassembling and maintaining the filter is longer, thereby prolonging the exposure time of the staff in the nuclear radiation environment in the prior art, the utility model provides a nuclear fluid pipeline filter.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model discloses a nuclear fluid pipeline filter, including the confluence pipeline and the support frame, the both sides of the top of the outer side wall of confluence pipeline all are provided with the installation component for fixing and installing the support frame on the confluence pipeline, the lower surface of support frame is evenly provided with the corrugated filter fin group, the upper surface of confluence pipeline is evenly provided with the opening that is suitable for the corrugated filter fin group,

[0007] The installation component includes the installation bottom plate fixedly connected to the both sides of the top of the outer side wall of confluence pipeline, the side away from the confluence pipeline of installation bottom plate is fixedly connected with the connecting plate, the top of connecting plate is rotatably connected with the rotating plate, the first screw hole is formed in the rotating plate, the screw rod is screw connected in the first screw hole, the second screw hole that is suitable for the screw rod is fixedly connected on the installation bottom plate,

[0008] The bottom of the outer side wall of support frame is fixedly connected with the installation top plate, and the third screw hole that is suitable for the screw rod is formed in the installation top plate.

[0009] The bottom of the confluence pipeline is provided with a supporting assembly.

[0010] As a preferred technical scheme of the utility model, the support assembly comprises a support fixedly connected to the bottom of the converging pipeline and a shock-absorbing support pad fixedly connected to the bottom of the support.

[0011] As a preferred technical scheme of the utility model, a positioning hole is formed in the mounting top plate, and a positioning block matched with the positioning hole is fixedly connected to the mounting bottom plate.

[0012] As a preferred technical scheme of the utility model, a reinforcing framework is fixedly connected to the inner side wall of the converging pipeline between every two adjacent openings, and a reinforcing block is fixedly connected to the outer side wall of the converging pipeline near the opening.

[0013] As a preferred technical scheme of the utility model, a rotating handle is fixedly installed at the top of the screw rod.

[0014] The utility model has the advantages of:

[0015] The nuclear fluid pipeline filter is characterized in that the converging pipeline, the support frame, the mounting assembly, the corrugated filtering fin set and the opening are matched, the mounting top plate is aligned with the mounting bottom plate when the support frame and the corrugated filtering fin set are mounted, the first threaded hole on the rotating plate is aligned with the second threaded hole on the mounting bottom plate and the third threaded hole on the mounting top plate, the screw rod is screwed into the threaded holes, the screw rod is rotated and tightened, the support frame is firmly mounted on the converging pipeline, the screw rod is unscrewed when the equipment needs to be maintained, and the rotating plate is rotated, so that the support frame can be separated from the converging pipeline, the corrugated filtering fin set and other components can be conveniently inspected, cleaned and replaced, the stability of the support frame and the corrugated filtering fin set after installation is ensured, the dismounting efficiency of the support frame is improved as much as possible, and the time during which the staff is exposed to the nuclear radiation environment when the support frame is dismounted and the corrugated filtering fin set is maintained is reduced as much as possible.

[0016] The nuclear fluid pipeline filter is characterized in that the reinforcing framework and the reinforcing block are matched, the reinforcing framework and the reinforcing block can improve the local structural strength of the converging pipeline as much as possible, and the stress concentration around the opening caused by the structural change is dispersed. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0018] Figure 1 is a perspective structural schematic view of the nuclear fluid pipeline filter of the utility model;

[0019] Figure 2is a support frame three-dimensional structure schematic view of the nuclear fluid pipeline filter of the utility model;

[0020] Figure 3 is a collecting pipeline three-dimensional structure schematic view of the nuclear fluid pipeline filter of the utility model;

[0021] Figure 4 is a collecting pipeline side view sectional structure schematic view of the nuclear fluid pipeline filter of the utility model;

[0022] Figure 5 is the installation assembly side view sectional structure schematic view of the nuclear fluid pipeline filter of the utility model.

[0023] In the drawing: 1, collecting pipeline; 2, support frame; 3, installation assembly; 31, installation bottom plate; 32, connecting plate; 33, rotating plate; 34, first threaded hole; 35, screw rod; 36, second threaded hole; 37, installation top plate; 38, third threaded hole; 4, corrugated filtering fin group; 5, opening; 6, support assembly; 61, support; 62, shock-absorbing support pad; 7, positioning hole; 8, positioning block; 9, reinforcing framework; 10, reinforcing block; 11, rotating handle. DETAILED DESCRIPTION

[0024] The preferred embodiments of the utility model are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0025] Embodiment: refer to Figure 1 、 Figure 2 and Figure 3 The utility model discloses a nuclear fluid pipeline filter, including collecting pipeline 1 and support frame 2, the top of both sides of the outer side wall of collecting pipeline 1 is provided with the installation assembly 3 for fixing installation support frame 2 on collecting pipeline 1, the lower surface of support frame 2 is evenly provided with corrugated filtering fin group 4, and the corrugated filtering fin group 4 has greater surface area, so that the contact area with fluid can be increased, and the wave-shaped structure can make fluid passing through the corrugated filtering fin group 4 produce certain disturbance and form vortex, so that impurities in the fluid are more easily collided with the corrugated filtering fin group 4, which helps the impurities to be better filtered by the corrugated filtering fin group 4.

[0026] Meanwhile, when bearing fluid pressure and impact force, the corrugated structure can better disperse stress, reduce local stress concentration, keep the shape and pore structure of the corrugated filtering fin group 4 stable, thereby prolonging the service life of the corrugated filtering fin group 4 as much as possible and ensuring long-term stable filtering performance.

[0027] refer to Figure 2 、 Figure 3 and Figure 4The upper surface of the manifold pipe 1 is uniformly provided with openings 5 matched with the corrugated filter fin group 4. The four peripheries of the inner side wall of the manifold pipe 1 between two adjacent openings 5 are fixedly connected with reinforcing frames 9. The side of the outer side wall of the manifold pipe 1 close to the opening 5 is fixedly connected with a reinforcing block 10. The reinforcing frames 9 and the reinforcing block 10 can improve the local structural strength of the manifold pipe 2 and disperse the stress concentration of the periphery of the opening 5 due to the structural change.

[0028] With reference to Figure 2 , Figure 3 and Figure 5 , the mounting assembly 3 comprises mounting bottom plates 31 fixedly connected to the top ends of the two sides of the outer side wall of the manifold pipe 1. The side of the mounting bottom plate 31 away from the manifold pipe 1 is fixedly connected with a connecting plate 32. The top of the connecting plate 32 is rotatably connected with a rotating plate 33. The rotating plate 33 is provided with a first threaded hole 34. The first threaded hole 34 is threadedly connected with a screw rod 35. The mounting bottom plate 31 is fixedly connected with a second threaded hole 36 matched with the screw rod 35.

[0029] The bottom ends of the two sides of the outer side wall of the support frame 2 are fixedly connected with mounting top plates 37. The mounting top plates 37 are provided with positioning holes 7. The mounting bottom plate 31 is fixedly connected with positioning blocks 8 matched with the positioning holes 7. The mounting top plate 37 is provided with a third threaded hole 38 matched with the screw rod 35.

[0030] When the support frame 2 needs to be mounted on the manifold pipe 1, the corrugated filter fin group 4 is preliminarily positioned through the opening 5 on the manifold pipe 1. Then, the mounting top plate 37 of the support frame 2 is aligned with the mounting bottom plate 31 of the outer side wall of the manifold pipe 1. The positioning hole 7 is matched with the positioning block 8 for further accurate positioning.

[0031] The first threaded hole 34 on the rotating plate 33 is aligned with the second threaded hole 36 on the mounting bottom plate 31 and the third threaded hole 38 on the mounting top plate 37. The screw rod 35 is screwed into these threaded holes. The screw rod 35 is tightened by rotating the handle 11, so that the support frame 2 is firmly mounted on the manifold pipe 1.

[0032] With reference to Figure 1 and Figure 4 , the bottom of the manifold pipe 1 is provided with a support assembly 6. The support assembly 6 comprises a support frame 61 fixedly connected to the bottom of the manifold pipe 1 and a shock-absorbing support pad 62 fixedly connected to the bottom of the support frame 61. The shock-absorbing support pad 62 is a high-strength rubber support pad with a metal mesh inside to increase the shock resistance and compression resistance. Thus, the vibration and noise generated when the fluid impacts the corrugated filter fin group 4 and passes through the manifold pipe 1 can be minimized.

[0033] In operation, the corrugated filter fin group 4 is initially positioned through the opening 5 on the manifold 1, then the mounting top plate 37 of the support frame 2 is aligned with the mounting bottom plate 31 of the outer wall of the manifold 1, the positioning hole 7 is matched with the positioning block 8, and the support frame 2 is further accurately positioned;

[0034] The first threaded hole 34 on the rotating plate 33 is aligned with the second threaded hole 36 on the mounting bottom plate 31 and the third threaded hole 38 on the mounting top plate 37, the threaded rod 35 is screwed into the threaded holes, the threaded rod 35 is tightened by rotating the handle 11, the support frame 2 is firmly mounted on the manifold 1, the rotating plate 33 and the mounting bottom plate 31 can clamp and position the mounting top plate 37, the positioning block 8 is inserted into the positioning hole 7 to horizontally position the mounting top plate 37, and the stability of the mounting top plate 37 and the support frame 2 after being fixedly mounted on the mounting bottom plate 31 is further improved;

[0035] The cooling water containing radioactive particles enters the manifold 1 through the corrugated filter fin group 4, the corrugated filter fin group 4 forms a complex flow channel through the multi-layer corrugated structure, when the water flows through the corrugated filter fin group 4, the particles are filtered through mechanical interception and turbulent adsorption, the filtered clean water is discharged from the outlet of the manifold 1 and enters the emergency cooling system;

[0036] When the equipment needs to be maintained, the threaded rod 35 is unscrewed by rotating the handle 11, the rotating plate 33 is rotated, and the support frame 2 can be separated from the manifold 1, so that the components such as the corrugated filter fin group 4 can be conveniently inspected, cleaned and replaced.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A nuclear fluid line filter comprising a manifold (1) and a support frame (2), characterized in that, The top of the outer side wall of the manifold pipe (1) is provided with a mounting assembly (3) for fixing and mounting the support frame (2) on the manifold pipe (1), the lower surface of the support frame (2) is uniformly provided with a corrugated filter fin group (4), and the upper surface of the manifold pipe (1) is uniformly provided with an opening (5) matched with the corrugated filter fin group (4); The mounting assembly (3) comprises a mounting bottom plate (31) fixedly connected to the top of the outer side wall of the manifold pipe (1), a connecting plate (32) fixedly connected to the side of the mounting bottom plate (31) away from the manifold pipe (1), a rotating plate (33) rotatably connected to the top of the connecting plate (32), a first threaded hole (34) formed in the rotating plate (33), and a screw rod (35) screwed into the first threaded hole (34); and the mounting bottom plate (31) is fixedly connected with a second threaded hole (36) matched with the screw rod (35). The bottom of the outer side wall of the support frame (2) is fixedly connected with a mounting top plate (37), and the mounting top plate (37) is provided with a third threaded hole (38) matched with the screw rod (35). The bottom of the manifold pipe (1) is provided with a support assembly (6).

2. The nuclear fluid line filter of claim 1, wherein, The support assembly (6) comprises a bracket (61) fixedly connected to the bottom of the manifold pipe (1) and a shock-absorbing support pad (62) fixedly connected to the bottom of the bracket (61).

3. A nuclear fluid line filter according to claim 2, wherein, The mounting top plate (37) is provided with a positioning hole (7), and the mounting bottom plate (31) is fixedly connected with a positioning block (8) matched with the positioning hole (7).

4. A nuclear fluid line filter according to claim 3, wherein The inner side wall of the manifold pipe (1) is fixedly connected with a reinforcing frame (9) between adjacent two openings (5), and the outer side wall of the manifold pipe (1) is fixedly connected with a reinforcing block (10) close to the opening (5).

5. A nuclear fluid line filter according to claim 4, wherein The top of the screw rod (35) is fixedly connected with a rotating handle (11).

Images