Protective nuclear power plant high-efficiency filter shell

Abstract

The utility model relates to the technical field of filter shells, discloses a protective type nuclear power plant high-efficiency filter shell, and solves the problems that in the use process of a filter shell, the conditions of blockage of a filtering material and non-uniform air flow distribution occur, so that the filtering effect is reduced, and the service life of the filter shell is prolonged. The nuclear power plant radiation protection filter comprises a filter body, a cleaning device is fixedly installed at the upper end of the filter body, the filter body comprises a shell, multiple sets of filter assemblies are arranged in the shell, an air inlet is formed in one end of the shell, and a fan is arranged in the shell; an air outlet is formed in the other end of the shell, an air exhaust groove is formed in the upper end of the shell, an air inlet groove is formed in the upper end of the shell, and when the filter body is normally used, air in the nuclear power plant is sucked into the shell through the air inlet, filtered through the multiple sets of filtering assemblies and subjected to backflushing cleaning through rotation of the rotating device.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter housing technical field, concretely is a protective type nuclear power plant high -efficient filter housing. BACKGROUND

[0002] Nuclear power station, also called nuclear power plant, is the place that uses the energy released by nuclear fission or nuclear fusion reaction to generate electricity, at present, the nuclear power plant for commercial operation all adopts nuclear fission reaction to generate electricity.Nuclear power station is mainly composed of two parts: one is nuclear island that uses atomic nucleus fission to produce steam, covering reactor device and primary loop system, two is conventional island that uses steam to generate electricity, including steam turbine generator system, and the fuel used is usually radioactive heavy metal uranium, plutonium, the energy released by nuclear fuel fission is taken out by the coolant circulating in the reactor, is transmitted to the boiler to produce steam, and then drives the steam turbine to drive the generator to generate electricity, nuclear power station has the characteristics of high energy and less consumption.

[0003] The utility model discloses a nuclear power plant high -efficient filter housing and its recycling method, after filtering pollution, the high -efficient filter housing is first split, the filter plate is stripped filter material, and the radioactivity pollution of filter plate and mounting plate is measured respectively, and the filter plate and mounting plate that the radioactivity pollution does not exceed the control value can be reused, so that some filter plate and mounting plate that are not contaminated or are less contaminated can be reused, the filter plate and mounting plate are general spare parts, can be reassembled into new high -efficient filter housing with the filter plate and mounting plate of other high -efficient filter housing, save the inventory and replacement cost, also shorten the production cycle of prefilter, improve production efficiency.

[0004] For the related technology in the above, in the process of using filter housing, the filter material may be blocked, and the airflow distribution may be uneven, resulting in a decline in filtering effect, unable to completely remove some small particles, affecting the air quality and radiation protection level in the nuclear power plant. UTILITY MODEL CONTENTS

[0005] The utility model discloses a protective type nuclear power plant high -efficient filter housing, adopts the device to work, thereby solve the process of using filter housing, the filter material may be blocked, and the airflow distribution may be uneven, resulting in a decline in filtering effect, unable to completely remove some small particles, affect the air quality and radiation protection level in the nuclear power plant problem.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective high-efficiency filter housing for nuclear power plants, comprising a filter body, a cleaning device fixedly installed at the upper end of the filter body, the filter body including an outer shell, multiple sets of filter components arranged inside the outer shell, an air inlet at one end of the outer shell, a fan arranged inside the outer shell on one side of the air inlet, an air outlet at the other end of the outer shell, an exhaust duct on one side of the upper end of the outer shell, and an air inlet duct on the other side of the upper end of the outer shell, both the exhaust duct and the air inlet duct being connected to the cleaning device; the cleaning device includes a rotating device, the rotating device... Located at the upper end of the outer shell, the lower end of the rotating device is fixedly connected to the outer shell. A connecting pipe is provided at the upper end of the outer shell, which is connected to the exhaust duct and the air inlet duct. The inlet and outlet of the connecting pipe are located at the upper ends of the exhaust duct and the air inlet duct, respectively. When the filter body is in normal use, the fan effectively filters the air inside the nuclear power plant. The air inside the nuclear power plant is drawn into the outer shell through the air inlet and filtered by multiple sets of filter components. At the same time, the working time of the rotating device is set. The rotation of the rotating device backwashes and cleans the filter components to prevent the filter components from becoming blocked and affecting the efficiency of the filter body.

[0007] Preferably, the upper end of the outer shell has multiple sets of placement slots, and the interior of each placement slot has two sets of conical slots. Both the placement slots and the conical slots match the top of the filter assembly. Since nuclear power plants have high requirements for filtration efficiency and the filter assembly has a short service life, it needs to be regularly processed or replaced. The placement slots and conical slots allow for quick assembly and disassembly of the filter assembly.

[0008] Preferably, multiple collection boxes are fixedly installed at the lower end of the outer casing, and bolts are fixedly installed on both sides of the collection boxes. The bolts are threadedly connected to the outer casing. The collection boxes are located on the side of the filter assembly near the air inlet. The filter assembly is backwashed and cleaned by the rotation of the rotating device. The impurities backwashed down are collected and cleaned centrally through the collection boxes.

[0009] Preferably, the filter assembly includes a connecting frame that matches the placement groove. A handle is fixedly installed on the upper end of the connecting frame. Multiple sets of elastic elements are provided inside the connecting frame. Connecting plates are fixedly installed on both sides of the elastic elements. The connecting plates are slidably connected to the connecting frame. A conical spring is fixedly installed on the side of the connecting plate away from the elastic elements. The conical spring matches the conical groove. A filter screen is fixedly installed at the lower end of the connecting frame. When the filter assembly needs to be inspected or replaced, the two sets of conical springs inside the connecting frame are pulled away from the conical groove by pulling up the handle, and the filter screen is taken out for cleaning and replacement. After replacement, the conical spring is squeezed into the conical groove by pressing down the connecting frame to fix it, thus completing the replacement of the filter assembly.

[0010] Preferably, the rotating device comprises a driving motor, the lower end of the driving motor is fixedly connected with the shell, a connecting rod one is fixedly installed at the driving end of the driving motor, a plurality of bevel gears one are fixedly installed at the outer side of the connecting rod one, a bevel gear two is meshingly arranged at the lower end of the bevel gear one, a protective shell is arranged at the outer side of the connecting rod one and the bevel gear two, the lower end of the protective shell is fixedly connected with the shell, a connecting rod two is fixedly installed at the lower end of the bevel gear two, the lower end of the connecting rod two penetrates through the shell, a rotating plate is fixedly installed at the lower end of the connecting rod two, the lower end of the rotating plate is rotatably connected with the shell, the rotating plate is located in the shell, the rotating plate is located between the filter screen and the air inlet, the filter assembly and the rotating device are located on the inner side of the communication pipeline, the driving motor is started at a fixed time to drive the connecting rod one to rotate, and then the rotating plate at the lower end of the bevel gear two is rotated, when the rotating plate is in a horizontal state, the air blown from the air inlet is blocked on the plane of the rotating plate, at this time, the air flows into the communication pipeline through the air exhaust groove, and then is discharged to one side of the filter assembly through the air inlet groove, the rotating speed of the rotating plate is controlled, the filter assembly is back-flushed, and the impurities on the filter assembly are blown into the collecting box for collection and centralized cleaning.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The protective nuclear power plant high-efficiency filter shell body can solve the problems of filter material blockage and uneven airflow distribution. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a filter body overall structure schematic view of the protective nuclear power plant high-efficiency filter shell body.

[0014] Figure 2 It is a filter body partial structure schematic view of the protective nuclear power plant high-efficiency filter shell body.

[0015] Figure 3 It is a shell internal structure schematic view of the protective nuclear power plant high-efficiency filter shell body.

[0016] Figure 4 It is a filter body internal structure schematic view of the protective nuclear power plant high-efficiency filter shell body.

[0017] Figure 5 It is a filter assembly structure schematic view of the protective nuclear power plant high-efficiency filter shell body.

[0018] Figure 6 It is a rotating device structure schematic view of the protective type nuclear power plant high efficiency filter shell.

[0019] In the figure: 1, filter body; 11, shell; 111, exhaust groove; 112, air inlet groove; 113, placing groove; 114, conical groove; 12, filter assembly; 121, connecting frame; 122, handle; 123, elastic piece; 124, conical elastic sheet; 125, connecting plate; 126, filter screen; 13, air inlet; 14, fan; 15, air outlet; 16, collection box; 161, bolt; 2, cleaning device; 21, rotating device; 211, driving motor; 212, protective shell; 213, connecting rod one; 214, bevel gear one; 215, bevel gear two; 216, connecting rod two; 217, rotating plate; 22, communication pipeline. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0022] In combination with Figures 1-4The utility model provides a protective type nuclear power plant high -efficient filter shell, including filter body 1, the upper end of filter body 1 is fixedly installed with cleaning device 2, filter body 1 includes shell 11, the inside of shell 11 is provided with multiple filter assemblies 12, one end of shell 11 is provided with air inlet 13, the inside of shell 11 is provided with fan 14, fan 14 is located one side of air inlet 13, the other end of shell 11 is provided with air outlet 15, the upper end of shell 11 one side is provided with exhaust groove 111, the upper end of shell 11 other side is provided with air inlet groove 112, and exhaust groove 111 and air inlet groove 112 are all communicated with cleaning device 2, and cleaning device 2 includes rotating device 21, and rotating device 21 is located the upper end of shell 11, and the lower end of rotating device 21 is fixedly connected with shell 11, and the upper end of shell 11 is provided with communication pipeline 22, and communication pipeline 22 is communicated with exhaust groove 111 and air inlet groove 112, and the import and export of communication pipeline 22 are located the upper end of exhaust groove 111 and air inlet groove 112 respectively, when filter body 1 is normally used, the air in nuclear power plant is filtered effectively by fan 14, the air in nuclear power plant is sucked into shell 11 through air inlet 13, is filtered through multiple filter assemblies 12, and the working time of rotating device 21 is set, and the filter assembly 12 is cleaned back through the rotation of rotating device 21, to prevent filter assembly 12 from being blocked, and the use efficiency of filter body 1 is affected.

[0023] In combination Figures 2-3 The upper end of shell 11 is provided with multiple placing grooves 113, the inside of placing groove 113 is provided with two tapered grooves 114, and the top of filter assembly 12 is matched with placing groove 113 and tapered groove 114, since the filtering effect of nuclear power plant is required to be higher, the service life of filter assembly 12 is shorter, and regular treatment or replacement is needed, placing groove 113 and tapered groove 114 can quickly disassemble and assemble filter assembly 12.

[0024] In combination Figures 2-3 The lower end of shell 11 is fixedly installed with multiple collecting boxes 16, the two sides of collecting box 16 are fixedly installed with bolts 161, the bolt 161 is screwed with shell 11, and collecting box 16 is located the side of filter assembly 12 close to air inlet 13, the filter assembly 12 is cleaned back through the rotation of rotating device 21, and the impurities cleaned back are collected and cleaned by collecting box 16.

[0025] In combination Figure 2 , Figure 5The filter assembly 12 includes a connecting frame 121, which matches the placement groove 113. A handle 122 is fixedly installed on the upper end of the connecting frame 121. Multiple sets of elastic elements 123 are provided inside the connecting frame 121. Connecting plates 125 are fixedly installed on both sides of the elastic elements 123. The connecting plates 125 are slidably connected to the connecting frame 121. A conical spring 124 is fixedly installed on the side of the connecting plate 125 away from the elastic elements 123. The conical spring 124 matches the conical groove 114. A filter screen 126 is fixedly installed on the lower end of the connecting frame 121. When the filter assembly 12 needs to be repaired or replaced, the two sets of conical springs 124 inside the connecting frame 121 are pulled away from the conical groove 114 by pulling up the handle 122, and the filter screen 126 is taken out for cleaning and replacement. After replacement, the conical spring 124 is squeezed into the conical groove 114 by pressing down the connecting frame 121 for fixation, thus completing the replacement of the filter assembly 12.

[0026] Combination Figure 2 , Figure 6 The rotating device 21 includes a drive motor 211, the lower end of which is fixedly connected to the outer casing 11. A connecting rod 213 is fixedly installed on the drive end of the drive motor 211. Multiple sets of bevel gears 214 are fixedly installed on the outer side of the connecting rod 213. A bevel gear 215 meshes with the lower end of the bevel gear 214. A protective shell 212 is provided on the outer side of the connecting rod 213 and the bevel gear 215. The lower end of the protective shell 212 is fixedly connected to the outer casing 11. A connecting rod 216 is fixedly installed on the lower end of the bevel gear 215. The lower end of the connecting rod 216 penetrates the outer casing 11. A rotating plate 217 is fixedly installed on the lower end of the connecting rod 216. The lower end of the rotating plate 217 is rotatably connected to the outer casing 11. The rotating plate 217 is located inside the outer casing 11 and is located near the filter screen 12. Between the air inlet 13 and the air inlet 6, the filter assembly 12 and the rotating device 21 are both located inside the connecting pipe 22. The drive motor 211 is started at a time to drive the connecting rod 213 to rotate, which in turn drives the rotating plate 217 at the lower end of the bevel gear 215 to rotate. When the rotating plate 217 is in a horizontal state, the air blown in from the air inlet 13 is blocked on the plane of the rotating plate 217. At this time, the air flows into the connecting pipe 22 through the exhaust duct 111 and is discharged into the side of the filter assembly 12 through the air inlet duct 112. By controlling the rotation speed of the rotating plate 217, the filter assembly 12 is backflushed, and the impurities on the filter assembly 12 are blown into the collection box 16 for collection and centralized cleaning. When the rotating plate 217 is in a vertical state, the air blown in from the air inlet 13 is directly filtered through multiple sets of filter screens 126 and discharged from the air outlet 15.

[0027] Working principle: when the filter shell works, the fan 14 draws the air inside the nuclear power plant from the air inlet 13 into the shell 11, and after being filtered by the multiple filter assemblies 12, the air is discharged from the air outlet 15; at the same time, the rotating device 21 is arranged to work, the driving motor 211 drives the connecting rod one 213 to rotate, the bevel gear one 214 drives the bevel gear two 215, and then drives the rotating plate 217 at the lower end of the connecting rod two 216 to rotate, when the rotating plate 217 is in a horizontal state, the air blown by the air inlet 13 flows into the communication pipeline 22 through the air outlet slot 111, and then is discharged into one side of the filter assembly 12 through the air inlet slot 112 for back flushing cleaning, and the impurities are blown into the collecting box 16; and because the nuclear power plant has high filtering requirements, the filter assembly 12 has a short service life, and can be quickly disassembled and assembled through the placing slot 113 and the conical groove 114, the handle 122 can pull the conical elastic piece 124 away from the conical groove 114, the filter screen 126 is taken out for cleaning and replacement, and the connecting frame 121 is pressed down to make the conical elastic piece 124 enter the conical groove 114 and be fixed.

[0028] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A containment type nuclear power plant high efficiency particulate air filter housing characterized by: The utility model relates to a filter, including filter body (1), the upper end of filter body (1) is fixedly installed and is cleaned device (2), filter body (1) includes shell (11), the inside of shell (11) is provided with multiple sets of filter assembly (12), one end of shell (11) is provided with air inlet (13), the inside of shell (11) is provided with fan (14), fan (14) is located air inlet (13) one side, the other end of shell (11) is provided with air outlet (15), the upper end of shell (11) one side is opened and is arranged exhaust slot (111), the upper end of shell (11) other side is opened and is arranged air inlet slot (112), exhaust slot (111) and air inlet slot (112) all are linked with cleaned device (2) communication, The utility model relates to a filter, including filter body (1), the upper end of filter body (1) is fixedly installed and is cleaned device (2), filter body (1) includes shell (11), the inside of shell (11) is provided with multiple sets of filter assembly (12), one end of shell (11) is provided with air inlet (13), the inside of shell (11) is provided with fan (14), fan (14) is located air inlet (13) one side, the other end of shell (11) is provided with air outlet (15), the upper end of shell (11) one side is opened and is arranged exhaust slot (111), the upper end of shell (11) other side is opened and is arranged air inlet slot (112), exhaust slot (111) and air inlet slot (112) all are linked with cleaned device (2) communication, 2. The containment high efficiency particulate air filter housing for nuclear power plants of claim 1, wherein: The upper end of shell (11) is opened and is arranged multiple sets of placing groove (113), the inside of placing groove (113) is provided with two groups of tapered groove (114), and placing groove (113) and tapered groove (114) are matched with the top of filter assembly (12).

3. The containment high efficiency particulate air filter housing for nuclear power plants of claim 1, wherein: The lower end of shell (11) is fixedly installed multiple sets of collection box (16), and the both sides of collection box (16) are fixedly installed bolt (161), and bolt (161) is connected with shell (11) threadedly, and collection box (16) is located filter assembly (12) near air inlet (13) one side.

4. The containment high efficiency particulate air filter housing for nuclear power plants of claim 2, wherein: Filter assembly (12) includes connecting frame (121), and connecting frame (121) is matched with placing groove (113), and the upper end of connecting frame (121) is fixedly installed handle (122), and the inside of connecting frame (121) is provided with multiple sets of elastic member (123), and the both sides of elastic member (123) are fixedly installed connecting plate (125), and connecting plate (125) is connected with connecting frame (121) slidingly, and the side, away from elastic member (123) of connecting plate (125), is fixedly installed tapered spring piece (124), and tapered spring piece (124) is matched with tapered groove (114), and the lower end of connecting frame (121) is fixedly installed filter screen (126).

5. The containment high efficiency particulate air filter housing for nuclear power plants of claim 4, wherein: Said rotating device (21) includes drive motor (211), the lower end of drive motor (211) is fixedly connected with the shell (11), the drive end of drive motor (211) is fixedly installed with connecting rod one (213), drive motor (211), the outer side of connecting rod one (213) is fixedly installed with multiple groups of bevel gear one (214), the lower end of bevel gear one (214) is meshed with bevel gear two (215), the outer side of connecting rod one (213) and bevel gear two (215) is provided with protective shell (212), the lower end of protective shell (212) is fixedly connected with the shell (11), the lower end of bevel gear two (215) is fixedly installed with connecting rod two (216), the lower end of connecting rod two (216) penetrates the shell (11), the lower end of connecting rod two (216) is fixedly installed with rotating plate (217), the lower end of rotating plate (217) is rotatably connected with the shell (11), rotating plate (217) is located in the inside of shell (11), rotating plate (217) is located between filter screen (126) and air inlet (13).

6. The containment high efficiency particulate air filter housing for nuclear power plants of claim 5, wherein: Said filter assembly (12) and driving device are located on the inner side of the communication pipeline.

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