Nuclear pipeline type filter box

Abstract

The nuclear pipeline type filter box comprises a box body and a filter, an air outlet pipe communicated with the interior of the box body is arranged at the top of the box body, an air inlet pipe communicated with the box body is arranged at the bottom of the box body, an opening is formed in one side of the outer side wall of the box body, and the filter is arranged in the box body. The outer side wall of the box body is located on the periphery of the opening and fixedly connected with a protective cylinder, the side, close to the protective cylinder, of the outer side wall of the box body is rotationally connected with a box door matched with the protective cylinder, the two sides of the inner side wall of the box body are fixedly connected with fixing angle steel, and the bottoms of the fixing angle steel are both provided with downward pressing assemblies; the downward pressing assembly is used for downwards pressing a filter arranged on the inner bottom wall of the box body; through the cooperation of the box body, the filter, the air outlet pipe, the air inlet pipe, the opening, the protective cylinder, the box door, the fixing angle steel and the downward pressing assembly, the pressing and loosening of the filter can be quickly realized through simple rotating operation, and the pressing and loosening are not influenced by factors such as thread abrasion.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear filters, in particular to a nuclear pipeline filter box. Background Art

[0002] Nuclear pipeline filter boxes are used in the reactor cooling system, primary and secondary circuit systems, ventilation systems and nuclear research facilities of nuclear power plants. They are used to filter out impurities, particles and harmful substances in the fluids (such as gas, liquid, etc.) flowing in the pipelines of nuclear facilities to prevent these substances from causing damage to the key equipment of nuclear facilities, such as clogging the pipelines and affecting the normal operation of the reactor cooling system.

[0003] When using a nuclear pipeline filter box, the internal filter needs to be compressed to prevent leakage, resist fluid impact and maintain the filter medium structure. The existing filter compression device uses threaded rods and a hanger to operate the downward pressing frame to achieve filter compression and sealing. The use of threaded rods for compression is cumbersome and time-consuming, and the accuracy of the thread will decrease after long-term use. Utility Model Content

[0004] In order to solve the defects in the existing technology that the existing filter clamping device uses threaded rods and hanging rods to operate the downward pressing frame to achieve the compression and sealing of the filter, the use of threaded rods for compression operation is cumbersome and time-consuming, and the accuracy of the thread will decrease after long-term use, the utility model provides a nuclear pipeline filter box.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses a nuclear pipeline filter box, comprising a box body and a filter, wherein the top of the box body is provided with an air outlet pipe connected to the interior of the box body, the bottom of the box body is provided with an air inlet pipe connected to the box body, an opening is opened on one side of the outer wall of the box body, a protective cylinder is fixedly connected to the outer wall of the box body around the opening, and a box door adapted to the protective cylinder is rotatably connected to the side of the outer wall of the box body close to the protective cylinder;

[0007] Fixed angle steels are fixedly connected to both sides of the inner side wall of the box, and a pressing assembly is provided at the bottom of each of the fixed angle steels, which is used to press down the filter provided on the bottom wall of the box;

[0008] The pressing assembly includes movable bolts provided on both sides of the lower surface of the fixed angle steel, the bottom ends of the two movable bolts fixedly connected to the same fixed angle steel are fixedly connected to a connecting rod, both ends of the connecting rod are slidably connected to a sliding sleeve, an oblong hole adapted to the connecting rod is provided in the sliding sleeve, and the bottom of the sliding sleeve is fixedly connected to a pressing frame;

[0009] One end of the connecting rod close to the opening is rotatably connected to a rotating rod, both ends of the rotating rod are fixedly connected to eccentric wheels, and the outer side wall of the rotating rod is fixedly connected to a handle.

[0010] As a preferred technical solution of the present invention, a differential pressure gauge is provided on one side of the outer side wall of the box body, and two detection ends of the differential pressure gauge are respectively provided in the air outlet pipe and the air inlet pipe.

[0011] As an optimal technical solution of the present invention, the four corners of the outer wall of the box body close to the protective tube are fixedly connected with threaded tubes, and the four corners of the box door are fixedly connected with connecting blocks, and the connecting blocks are provided with through holes adapted to the threaded tubes.

[0012] As a preferred technical solution of the present invention, sealing gaskets are provided on all four sides of the door close to the primary side of the opening.

[0013] As a preferred technical solution of the present invention, grooves are provided around the outer side wall of the protective tube.

[0014] As an optimal technical solution of the present invention, clamping holes compatible with the movable bolts are provided on both sides of the fixed angle steel, and clamping nuts for clamping the movable bolts to the fixed angle steel are threadedly connected above and below the clamping holes.

[0015] The beneficial effects of the utility model are:

[0016] 1. This type of nuclear pipeline filter box, through the cooperation of the box body, filter, air outlet pipe, air inlet pipe, opening, protective tube, box door, fixed angle steel and pressing assembly, when installing the filter, first turn the handle to move the eccentric wheel away from one end of the rotating rod and away from the pressing frame, pull up the pressing frame and put the filter in, then turn the handle again to move the eccentric wheel closer to the pressing frame and apply pressure to compress the filter. The filter can be quickly tightened and loosened through a simple rotation operation, and is not affected by factors such as thread wear;

[0017] 2. This type of nuclear pipeline filter box is equipped with a differential pressure gauge. The operator can use the differential pressure gauge to observe the pressure difference when the air enters the box through the air inlet pipe and when it is filtered by the filter in the box and discharged from the box through the air outlet pipe, thereby determining whether the filter needs to be replaced;

[0018] 3. This type of nuclear pipeline filter box, through the cooperation of fixed angle steel, swing bolts, clamping holes and clamping nuts, the staff can adjust the height of the connecting rod fixed to the bottom end of the swing bolt by rotating the clamping nuts threadedly connected to the swing bolt and located above and below the clamping holes respectively, and then adjust the height of the downward pressure frame when the eccentric wheel rotates until the end of the eccentric wheel away from the rotating rod is close to the downward pressure frame and pressure is applied to the downward pressure frame, so as to adapt to filters of different heights and improve the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the main structure of a nuclear pipeline filter box of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of a nuclear pipeline filter box of the utility model;

[0022] Figure 3 This is a side sectional structural diagram of a nuclear pipeline filter box of the utility model;

[0023] Figure 4 This is a schematic diagram of a top-view cross-sectional structure of a nuclear pipeline filter box of the utility model;

[0024] Figure 5 The utility model is a schematic diagram of the structure of a downward pressure component of a nuclear pipeline filter box.

[0025] In the figure: 1. Box body; 2. Filter; 3. Air outlet pipe; 4. Air inlet pipe; 5. Opening; 6. Protective tube; 7. Box door; 8. Fixed angle steel; 9. Down-pressing assembly; 91. Visible bolt; 92. Connecting rod; 93. Sleeve; 94. Oblong hole; 95. Down-pressing frame; 96. Turning rod; 97. Eccentric wheel; 98. Handle; 10. Differential pressure gauge; 11. Threaded tube; 12. Connecting block; 13. Perforation; 14. Sealing gasket; 15. Groove; 16. Clamping hole; 17. Clamping nut. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 While describing the preferred embodiments of the present invention, it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Reference Figure 1 、 Figure 2 and Figure 3The utility model is a nuclear pipeline filter box, comprising a box body 1 and a filter 2. The top of the box body 1 is provided with an air outlet pipe 3 connected to the inside of the box body 1, and the bottom of the box body 1 is provided with an air inlet pipe 4 connected to the box body 1. The outer side walls of the air outlet pipe 3 and the air inlet pipe 4 are both provided with connecting flanges at one end away from the box body 1, and the box is fixedly connected and communicated with the external pipeline through the connecting flange provided on the outer side walls of the air outlet pipe 3 and the air inlet pipe 4 at one end away from the box body 1.

[0028] Reference Figure 2 、 Figure 3 and Figure 4 , an opening 5 is opened on one side of the outer wall of the box body 1, and a protective cylinder 6 is fixedly connected to the outer wall of the box body 1 around the opening 5, and a groove 15 is provided around the outer wall of the protective cylinder 6. A box door 7 adapted to the protective cylinder 6 is rotatably connected to one side of the outer wall of the box body 1 close to the protective cylinder 6, and a threaded cylinder 11 is fixedly connected to the four corners of the outer wall of the box body 1 close to the protective cylinder 6. The four corners of the box door 7 are fixedly connected to a connecting block 12, and a through-hole 13 adapted to the threaded cylinder 11 is opened on the connecting block 12. A sealing gasket 14 is provided around the primary side of the box door 7 close to the opening 5. When the box door 7 needs to be closed, the box door 7 is first rotated until the sealing gasket 14 fits the outer wall of the box body 1, and then the fixing bolts are passed through the through-holes 13 and threaded into the threaded cylinder 11, thereby trying to improve the airtightness between the box body 1 and the box door 7 when the box door 7 is closed;

[0029] Reference Figure 2 、 Figure 3 and Figure 5 , both sides of the inner wall of the box body 1 are fixedly connected with fixed angle steels 8, and a pressing assembly 9 is provided at the bottom of the fixed angle steels 8. The pressing assembly 9 is used to press downward the filter 2 arranged on the inner bottom wall of the box body 1. The pressing assembly includes a movable bolt 91 arranged on both sides of the lower surface of the fixed angle steel 8. Clamping holes 16 that are compatible with the movable bolts 91 are opened on both sides of the fixed angle steel 8. Clamping nuts 17 are provided above and below the clamping holes 16 outside the movable bolt 91. The bottom ends of the two movable bolts 91 fixedly connected to the same fixed angle steel 8 are fixedly connected to a connecting rod 92, and both ends of the connecting rod 92 are slidably connected to a sliding sleeve 93. An oblong hole 94 that is compatible with the connecting rod 92 is opened in the sliding sleeve 93. The bottom of the sliding sleeve 93 is fixedly connected to a pressing frame 95, and the filter 2 is placed between the inner bottom wall of the box body 1 and the pressing frame 95.

[0030] Reference Figure 3 and Figure 5The end of the connecting rod 92 near the opening 5 is rotatably connected to the rotating rod 96, and both ends of the rotating rod 96 are fixedly connected to the eccentric wheel 97. The outer wall of the rotating rod 96 is fixedly connected to the handle 98. When in use, first turn the handle 98 and drive the eccentric wheel 97 through the rotating rod 96 to rotate until the end of the eccentric wheel 97 away from the rotating rod 96 is away from the pressing frame 95, then pull up the pressing frame 95 and place the filter 2 between the bottom wall of the box body 1 and the pressing frame 95, then turn the handle 98 again and drive the eccentric wheel 97 through the rotating rod 96 to rotate until the end of the eccentric wheel 97 away from the rotating rod 96 is close to the pressing frame 95 and apply pressure to the pressing frame 95, thereby applying pressure to the filter 2 and pressing it tightly, thereby improving the stability of the filter 2 in the box body 1;

[0031] The staff can adjust the height of the connecting rod 92 fixedly connected to the bottom end of the pivot bolt 91 by rotating the clamping nuts 17 which are threadedly connected to the pivot bolt 91 and are respectively located above and below the clamping hole 16, and then adjust the height of the pressing frame 95 when the eccentric wheel 97 rotates until the end of the eccentric wheel 97 away from the rotating rod 96 is close to the pressing frame 95 and pressure is applied to the pressing frame 95, thereby adapting to filters 2 of different heights.

[0032] Reference Figure 1 、 Figure 2 and Figure 3 A differential pressure gauge 10 is provided on one side of the outer wall of the box body 1. The two detection ends of the differential pressure gauge 10 are respectively provided in the air outlet pipe 3 and the air inlet pipe 4. The staff can use the differential pressure gauge 10 to observe the pressure difference when the air enters the box body 1 through the air inlet pipe 4 and when the air is filtered by the filter 2 in the box body 1 and discharged from the box body 1 through the air outlet pipe 3, and then determine whether the filter 2 needs to be replaced.

[0033] The working principle of this utility model is:

[0034] When in use, the box body 1 is first connected to the external pipe through the connecting flange provided on the outer side wall of the air outlet pipe 3 and the air inlet pipe 4 at one end away from the box body 1, and then the box door 7 is opened. The handle 98 is first turned and the eccentric wheel 97 is driven to rotate through the rotating rod 96 until the end of the eccentric wheel 97 away from the rotating rod 96 is away from the pressing frame 95, and then the pressing frame 95 is pulled up and the filter 2 is placed between the bottom wall of the box body 1 and the pressing frame 95. The handle 98 is then turned again and the eccentric wheel 97 is driven to rotate through the rotating rod 96 until the end of the eccentric wheel 97 away from the rotating rod 96 is close to the pressing frame 95 and pressure is applied to the pressing frame 95, thereby applying pressure to the filter 2 and pressing it tightly, thereby improving the stability of the filter 2 in the box body 1.

[0035] The staff can adjust the height of the connecting rod 92 fixedly connected to the bottom end of the pivot bolt 91 by rotating the clamping nuts 17 which are threadedly connected to the pivot bolt 91 and are respectively located above and below the clamping hole 16, and then adjust the height of the pressing frame 95 when the eccentric wheel 97 rotates until the end of the eccentric wheel 97 away from the rotating rod 96 is close to the pressing frame 95 and pressure is applied to the pressing frame 95, so as to adapt to filters 2 of different heights.

[0036] After the filter 2 is tightened, first rotate the door 7 until the sealing gasket 14 is in contact with the outer wall of the box body 1, then pass the fixing bolt through the through hole 13 and thread it into the threaded barrel 11 and tighten it as much as possible, thereby maximizing the airtightness between the box body 1 and the door 7 when the door 7 is closed;

[0037] The staff can use the pressure differential gauge 10 to observe the pressure difference when the air enters the box 1 through the air inlet pipe 4 and when the air is filtered by the filter 2 in the box 1 and discharged from the box 1 through the air outlet pipe 3, and then determine whether the filter 2 needs to be replaced.

[0038] When the filter 2 needs to be replaced, first close the airflow in the external pipe, then threadably remove the threaded barrel 11 and the fixing bolts in the through-hole 13, turn and open the box door 7, then turn the handle 98 and drive the eccentric wheel 97 through the rotating rod 96 to rotate until the end of the eccentric wheel 97 away from the rotating rod 96 is away from the pressing frame 95, put the radiation-proof storage bag on the protective barrel 6, and tie the rope at the groove 15 on the outside of the storage bag and tighten it in the groove 15, and then fix the storage bag to the protective barrel 6, then pull out the used filter 2 through the storage bag and store it in the storage bag, remove the binding rope and the storage bag, and then place the new filter 2 between the bottom wall of the box body 1 and the pressing frame 95 and tighten it through the pressing assembly 9, close the box door 7 and thread the fixing bolt through the through-hole 13 again to complete the replacement.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A nuclear pipeline filter box, comprising a box body (1) and a filter (2), characterized in that: The top of the box body (1) is provided with an air outlet pipe (3) connected to the interior of the box body (1), the bottom of the box body (1) is provided with an air inlet pipe (4) connected to the box body (1), an opening (5) is provided on one side of the outer wall of the box body (1), a protective cylinder (6) is fixedly connected to the outer wall of the box body (1) around the opening (5), and a box door (7) adapted to the protective cylinder (6) is rotatably connected to the side of the outer wall of the box body (1) close to the protective cylinder (6); Fixed angle steels (8) are fixedly connected to both sides of the inner side wall of the box body (1), and a pressing assembly (9) is provided at the bottom of each of the fixed angle steels (8). The pressing assembly (9) is used to press down the filter (2) provided on the inner bottom wall of the box body (1); The pressing assembly includes movable bolts (91) provided on both sides of the lower surface of the fixed angle steel (8), the bottom ends of the two movable bolts (91) fixedly connected to the same fixed angle steel (8) are fixedly connected to a connecting rod (92), both ends of the connecting rod (92) are slidably connected to a sliding sleeve (93), an oblong hole (94) adapted to the connecting rod (92) is provided in the sliding sleeve (93), and the bottom of the sliding sleeve (93) is fixedly connected to a pressing frame (95); One end of the connecting rod (92) close to the opening (5) is rotatably connected to a rotating rod (96), both ends of the rotating rod (96) are fixedly connected to an eccentric wheel (97), and the outer side wall of the rotating rod (96) is fixedly connected to a handle (98).

2. A nuclear pipeline filter box according to claim 1, characterized in that: A differential pressure gauge (10) is provided on one side of the outer wall of the box body (1), and two detection ends of the differential pressure gauge (10) are respectively provided in the air outlet pipe (3) and the air inlet pipe (4).

3. A nuclear pipeline filter box according to claim 2, characterized in that: The four corners of the outer wall of the box body (1) close to the protective tube (6) are fixedly connected to the threaded tube (11), and the four corners of the box door (7) are fixedly connected to the connecting block (12), and the connecting block (12) is provided with a through hole (13) adapted to the threaded tube (11).

4. A nuclear pipeline filter box according to claim 3, characterized in that: Sealing pads (14) are provided on all four sides of the door (7) near the primary side of the opening (5).

5. The nuclear pipeline filter box according to claim 4, characterized in that: Grooves (15) are provided around the outer side wall of the protective tube (6).

6. The nuclear pipeline filter box according to claim 5, characterized in that: Both sides of the fixed angle steel (8) are provided with clamping holes (16) adapted to the movable bolts (91), and the movable bolts (91) are threadedly connected with clamping nuts (17) above and below the clamping holes (16) for clamping the movable bolts (91) to the fixed angle steel (8).

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