Dust filter of high-temperature reactor helium purification system

Abstract

The invention relates to the technical field of helium purification, in particular to a dust filter of a high-temperature reactor helium purification system. Comprising a mounting unit, and the mounting unit comprises a first mounting box, a second mounting box, a first connecting pipe arranged between the first mounting box and the second mounting box, and a first filtering plate arranged in the first connecting pipe; the cleaning unit comprises a second connecting pipe arranged between the first mounting box and the second mounting box, a third connecting pipe arranged between the first mounting box and the air outlet pipe, a first switch assembly arranged in the first mounting box and a second switch assembly arranged in the second mounting box; according to the dust filter of the high-temperature reactor helium purification system, after the first filter plate is blocked, helium enters the second mounting box from the second connecting pipe by controlling the first switch assembly and the second switch assembly to be opened, then reversely penetrates through the first connecting pipe to clean the first filter plate, finally dust is filtered through the third connecting pipe, and cleaning of the first filter plate is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of helium purification, and in particular to a dust filter for a high-temperature reactor helium purification system. Background Art

[0002] In the helium purification system, the clogging problem of dust filters is a major technical defect. As the use time increases, the filter plate is gradually clogged with dust, resulting in a decrease in filtration efficiency and affecting the purity of helium. In addition, the cleaning process of existing filters is often cumbersome and inefficient, and they need to be disassembled for cleaning, which increases the difficulty and cost of maintenance. In view of this problem, the present invention proposes a dust filter for a high-temperature reactor helium purification system with a self-cleaning function, which is intended to improve the filtration efficiency and simplify the maintenance process. Summary of the invention

[0003] In view of the above-mentioned problems existing in the dust filter of the existing high temperature reactor helium purification system, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a dust filter for a high temperature reactor helium purification system, the purpose of which is to clean the dust filter without stopping the machine when the dust filter is clogged.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a dust filter for a high temperature reactor helium purification system, comprising:

[0006] An installation unit, the installation unit comprising an installation box 1 and an installation box 2, an air inlet pipe arranged on the left side of the installation box 1, an air outlet pipe arranged on the right side of the installation box 2, a connecting pipe 1 arranged between the installation box 1 and the installation box 2, and a filter plate 1 arranged in the connecting pipe 1; and,

[0007] A cleaning unit, the cleaning unit comprising a connecting pipe 2 arranged between the first installation box and the second installation box, a connecting pipe 3 arranged between the first installation box and the air outlet pipe, a filter plate 2 arranged in the second connection pipe, a filter plate 3 arranged in the third connection pipe, a switch component 1 arranged in the first installation box, and a switch component 2 arranged in the second installation box;

[0008] The two ends of the second connecting pipe are respectively connected to the bottom sides of the first installation box and the second installation box;

[0009] The three ends of the connecting pipe are connected to the upper side of the first installation box.

[0010] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, the switch assembly 1 includes a mounting shaft 1 rotatably arranged in the mounting box 1, a sealing plate 1 arranged in the mounting shaft 1, an arc plate arranged at the end of the sealing plate 1, and a through hole arranged in the arc plate;

[0011] The arc plate is rotatably fitted with the ends of the air inlet pipe and the connecting pipe three, and the ends of the arc plate slide out of the installation box one;

[0012] The sealing plate 1 cooperates with the connecting pipe 2;

[0013] The end of the installation shaft one passes through the installation box one.

[0014] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, wherein: the switch assembly 2 includes a mounting shaft 2 arranged in the mounting box 2, and a sealing plate 2 arranged in the mounting shaft 2;

[0015] The second sealing plate cooperates with the second connecting pipe or the air outlet pipe;

[0016] The end of the second installation shaft passes through the second installation box.

[0017] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, it also includes a driving unit, which includes a support plate arranged between the installation box one and the installation box two, a gear one arranged on the installation shaft one, a gear two arranged on the installation shaft two, and a driving component arranged on the support plate and cooperating with the gear one and the gear two.

[0018] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, wherein: the driving assembly includes a support frame slidably arranged on the support plate, a mounting plate arranged on the support frame, and a rack 1 and a rack 2 arranged at both ends of the mounting plate;

[0019] The rack 1 cooperates with the gear 1;

[0020] The second rack is matched with the second gear.

[0021] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, wherein: the gear 1 and the gear 2 have the same specifications, and the gear ratio of the rack 2 to the rack 1 is 2;

[0022] The second installation box is provided with an arc-shaped wall that fits with the second sealing plate;

[0023] The connecting pipe 1 passes through the arc-shaped wall and communicates with the installation box 2.

[0024] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, wherein: the driving unit further comprises a limit assembly arranged at the end of the mounting plate;

[0025] The limiting assembly includes a limiting frame slidably arranged at the end of the mounting plate, and a spring 1 arranged between the limiting frame and the supporting plate;

[0026] The limiting frame is engaged with the gear.

[0027] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, there are multiple filter plates one, and the filter apertures of the multiple filter plates one gradually decrease from the installation box one to the installation box two.

[0028] As a preferred solution of the dust filter of the high temperature reactor helium purification system of the present invention, wherein: a pressure sensor is provided on the gas outlet pipe;

[0029] The pressure sensor is located behind the connection portion between the air outlet pipe and the connecting pipe 3.

[0030] The beneficial effects of the present invention are as follows: helium passes through the connecting pipe 1, and the dust in the helium is filtered through the filter plate 1. When the filter plate 1 is blocked, the switch component 1 and the switch component 2 are controlled to be opened, so that the helium enters the installation box 2 from the connecting pipe 2, and then passes through the connecting pipe 1 in the reverse direction to clean the filter plate 1. Finally, the dust is filtered through the connecting pipe 3 to achieve the cleaning of the filter plate 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the dust filter of the high temperature reactor helium purification system of the present invention.

[0033] Figure 2 It is a schematic diagram of the cross-section structure of the dust filter of the high temperature reactor helium purification system of the present invention.

[0034] Figure 3 It is a schematic diagram of the structure of the driving unit of the dust filter of the high temperature reactor helium purification system of the present invention.

[0035] Figure 4 It is a schematic diagram of the structure of the driving assembly of the dust filter of the high temperature reactor helium purification system of the present invention. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0040] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a dust filter for a high temperature reactor helium purification system. The device includes an installation unit 100 and a cleaning unit 200.

[0041] The installation unit 100 includes an installation box 101 and an installation box 102, an air inlet pipe 103 arranged on the left side of the installation box 101, an air outlet pipe 104 arranged on the right side of the installation box 102, a connecting pipe 105 arranged between the installation box 101 and the installation box 102, and a filter plate 106 arranged in the connecting pipe 105;

[0042] The helium enters the installation box 101 from the air inlet pipe 103, and then enters the installation box 2 after being filtered by the filter plate 106 in the connecting pipe 105, and is finally discharged from the air outlet pipe 104, so that the dust in the helium can be filtered.

[0043] Furthermore, a plurality of filter plates 106 are provided, and the filter apertures of the plurality of filter plates 106 gradually decrease from the installation box 101 to the installation box 2 102, which can improve the filtering effect on dust in the helium.

[0044] The filter plate 106 will be clogged during the filtering process, thereby causing the connecting tube 105 to be unable to circulate and filter the helium.

[0045] Wherein, the cleaning unit 200 includes a connecting pipe 201 arranged between the installation box 101 and the installation box 2 102, a connecting pipe 3 202 arranged between the installation box 101 and the exhaust pipe 104, a filter plate 203 arranged in the connecting pipe 201, a filter plate 3 204 arranged in the connecting pipe 3 202, a switch component 1 205 arranged in the installation box 101, and a switch component 2 206 arranged in the installation box 2 102; both ends of the connecting pipe 201 are respectively connected to the bottom sides of the installation box 1 101 and the installation box 2 102; the end of the connecting pipe 3 202 is connected to the upper side of the installation box 101.

[0046] The switch component 1 205 is made of three baffles inserted in the installation box 1 101, and the three baffles can respectively block the channel between the connecting pipe 3 202 and the installation box 1 101, the channel between the connecting pipe 2 201 and the installation box 1 101, and the channel between the air inlet pipe 103 and the connecting pipe 1 105; the switch component 2 206 is made of two baffles inserted in the installation box 2 102, and the two baffles can respectively block the channel between the connecting pipe 201 and the installation box 2 102, and the channel between the air outlet pipe 104 and the installation box 2 102.

[0047] In the initial state, the channel between the connecting pipe three 202 and the installation box one 101 is blocked, the channel between the connecting pipe two 201 and the installation box one 101 is blocked, the channel between the air inlet pipe 103 and the connecting pipe one 105 is opened, the channel between the connecting pipe two 201 and the installation box two 102 is blocked, and the channel between the air outlet pipe 104 and the installation box two 102 is opened. At this time, helium enters the installation box one 101 from the air inlet pipe 103, is filtered by the filter plate one 106 when entering the connecting pipe one 105, and then enters the installation box two 102, and is finally discharged from the air outlet pipe 104; when the filter plate one 106 is blocked during the filtration process, helium cannot enter the connecting pipe one 105, and the smooth filtration and supply of helium cannot be carried out.

[0048] At this time, the channel between the connecting pipe 3 202 and the installation box 1 101 is opened by controlling the switch assembly 1 205 and the switch assembly 2 206, the channel between the connecting pipe 2 201 and the installation box 1 101 is opened, the channel between the air inlet pipe 103 and the connecting pipe 1 105 is blocked, and the blocking position is located at the diagonal of the installation box 1 101, the channel between the connecting pipe 2 201 and the installation box 2 102 is opened, and the channel between the air outlet pipe 104 and the installation box 2 102 is blocked. At this time, helium is discharged from the inlet pipe 103 and the connecting pipe 105. The helium enters the installation box 101 from the air pipe 103, and enters the installation box 102 from the connecting pipe 201, then passes through the connecting pipe 105 in the opposite direction to enter the installation box 101, and finally enters the outlet pipe 104 from the connecting pipe 3 202. The helium passes through the filter plate 106 in the opposite direction to clean the blocked filter plate 106, and then controls the switch component 1 205 and the switch component 2 206 to return to the initial state, and continues to filter the helium through the connecting pipe 105.

[0049] When the helium passes through the connecting pipe 201, it is filtered by the filter plate 203 to ensure that the helium entering the installation box 2 102 does not contain dust. At the same time, the dust that is reversely cleaned in the connecting pipe 1 105 is filtered by the filter plate 3 204 when entering the connecting pipe 3 202, ensuring that the helium that finally enters the outlet pipe 104 is dust-free.

[0050] Example 2, reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the switch assembly 205 includes a mounting shaft 205a rotatably disposed in the mounting box 101, a sealing plate 205b disposed in the mounting shaft 205a, an arc plate 205c disposed at the end of the sealing plate 205b, and a through hole 205d disposed in the arc plate 205c;

[0051] The arc plate 205c is rotatably fitted with the ends of the air inlet pipe 103 and the connecting pipe three 202, and the end of the arc plate 205c slides out of the installation box 101; wherein the ends of the air inlet pipe 103 and the connecting pipe three 202 in the installation box 101 are arc-shaped, and when the arc plate 205c rotates with the sealing plate 205b, it can always fit with the ends of the air inlet pipe 103 and the connecting pipe three 202, and the end of the installation shaft 205a passes through the installation box 101, and the arc plate 205c is sealed with the installation box 101, and the part fitting with the ends of the air inlet pipe 103 and the connecting pipe three 202 is sealed.

[0052] The sealing plate 1 205b cooperates with the connecting pipe 201; in the initial state, the sealing plate 1 205b fits with the end of the connecting pipe 201, and can block the passage between the connecting pipe 201 and the installation box 1 101. At this time, the through hole 205d is the same as the air inlet pipe 103, and the end of the arc plate 205c passes through the installation box 1 101, and the arc plate 205c blocks the passage between the connecting pipe 3 202 and the installation box 1 101;

[0053] When cleaning the filter plate 106, the sealing plate 205b is controlled to rotate 45° through the installation shaft 205a. At this time, the sealing plate 205b is located between the air inlet pipe 103 and the connecting pipe 3 202, the passage between the connecting pipe 201 and the installation box 101 is opened, and the through hole 205d is connected to the end of the connecting pipe 3 202. At the same time, the sealing plate 205b blocks the passage between the air inlet pipe 103 and the connecting pipe 105.

[0054] Furthermore, the switch assembly 206 includes a mounting shaft 206a disposed in the mounting box 102 and a sealing plate 206b disposed in the mounting shaft 206a; the sealing plate 206b cooperates with the connecting pipe 201 or the air outlet pipe 104; and the end of the mounting shaft 206a passes through the mounting box 102.

[0055] In the initial state, the second sealing plate 206 b abuts against the end of the second connecting pipe 201 , thereby blocking the passage between the second connecting pipe 201 and the second installation box 102 .

[0056] When cleaning the filter plate 106, the sealing plate 205b is controlled to rotate 90° through the installation shaft 206a. At this time, the sealing plate blocks the passage between the air outlet pipe 104 and the installation box 2 102, and the passage between the connecting pipe 201 and the installation box 2 102 is opened.

[0057] Furthermore, a handle for control is provided at the end of the second installation axis 206a of the first installation axis 205a.

[0058] Furthermore, sealing plate 1 205b and sealing plate 2 206b are respectively located at the corners of installation box 1 101 and installation box 2 102, and the corners of installation box 1 101 and installation box 2 102 are arc-shaped, and are sealed between sealing plate 1 205b and sealing plate 2 206b respectively.

[0059] Furthermore, a pressure sensor 107 is provided on the air outlet pipe 104; the pressure sensor 107 is located behind the connection portion between the air outlet pipe 104 and the connecting pipe three 202. When the connecting pipe 105 filters the dust in the helium, when the filter plate 106 is blocked, the discharged gas in the air outlet pipe 104 decreases. At this time, the value detected by the pressure sensor 107 decreases, and the service life of the filter plate 106 can be determined by the value of the pressure sensor 107. When the filter plate 106 is reversely cleaned, the dust in the filter plate 106 enters the connecting pipe three 202 and is intercepted by the filter plate three 204, thereby blocking the filter plate three 204. At this time, the discharged gas in the air outlet pipe 104 decreases, and the value detected by the pressure sensor 107 decreases. The value of the pressure sensor 107 can be used to determine that the filter plate 106 is cleaned, and the helium dust filtering can be performed again.

[0060] When only the switch component 1 205 or the switch component 2 206 is opened, the helium can be sealed in the connecting pipe 2 201 or the connecting pipe 1 105. At this time, no helium passes through the outlet pipe 104. At this time, the inlet pipe 103 can be opened to replace the blocked filter plate 3 204.

[0061] Among them, filter plate three 204 and filter plate two 203 are not used for a long time, and their manufacturing process and cost are much lower than filter plate one 106.

[0062] The remaining structures are the same as those of Example 1.

[0063] The usage process is as follows: when cleaning the filter plate 106, the installation shaft 1 205a and the installation shaft 2 206a are rotated 45° and 90° respectively, so that the helium enters the installation box 1 101 from the air inlet pipe 103, and enters the installation box 2 102 from the connecting pipe 201, and then passes through the connecting pipe 105 in the reverse direction to enter the installation box 101, and finally enters the air outlet pipe 104 from the connecting pipe 3 202. The helium passes through the filter plate 106 in the reverse direction to clean the blocked filter plate 106, and then the switch component 1 205 and the switch component 2 206 are controlled to return to the initial state, and the helium continues to be filtered through the connecting pipe 105.

[0064] Example 3, reference Figure 3 and Figure 4 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it also includes a driving unit 300, and the driving unit 300 includes a support plate 301 arranged between the installation box 101 and the installation box 2 102, a gear 1 302 arranged on the installation shaft 1 205a, a gear 2 303 arranged on the installation shaft 2 206a, and a driving component 304 arranged on the support plate 301 and cooperating with the gear 1 302 and the gear 2 303.

[0065] The driving assembly 304 includes a support frame 304a slidably disposed on the support plate 301, a mounting plate 304b disposed on the support frame 304a, and a rack 1 304c and a rack 2 304d disposed at both ends of the mounting plate 304b;

[0066] Rack 1 304c cooperates with gear 1 302; rack 2 304d cooperates with gear 2 303.

[0067] Furthermore, the specifications of gear 1 302 and gear 2 303 are the same, and the gear ratio of rack 2 304d to rack 1 304c is 2;

[0068] The second installation box 102 is provided with an arc-shaped wall 102a that fits with the second sealing plate 206b;

[0069] The connecting pipe 105 passes through the arc wall 102a and communicates with the installation box 2 102, wherein the sealing plate 206b abuts against the arc wall 102a. After the sealing plate 206b passes through the connecting pipe 105, the end of the air outlet pipe 104 can be blocked.

[0070] In the initial state, sealing plate 1 205b and sealing plate 206b are respectively sealed with the two ends of connecting pipe 201, at this time, rack 2 304d is meshed with gear 2 303, and rack 1 304c is separated from gear 1 302, when the control support frame 304a drives the mounting plate 304b to slide, it can control the sliding of rack 2 304d to drive gear 2 303 to rotate, when gear 2 303 rotates and drives sealing plate 206b to rotate 45°, rack 1 304c moves and meshes with gear 1 302, and then gear 1 302 and gear 2 303 rotate at the same time, when the sealing plate rotates to 90°, sealing plate 1 205b rotates 45°.

[0071] Furthermore, the driving unit 300 further includes a limit assembly 305 disposed at the end of the mounting plate 304b;

[0072] The limiting assembly 305 includes a limiting frame 305a slidably disposed at the end of the mounting plate 304b, and a spring 1 305b disposed between the limiting frame 305a and the supporting plate 301; the limiting frame 305a is engaged with the gear 1 302.

[0073] Wherein, in the initial state, the rack is separated from the gear 1 302, at this time, the spring 1 305b is stretched, and the limit frame 305a is engaged with the gear 1 302 to limit the accidental rotation of the gear 1 302. When the filter plate 106 is cleaned, the support frame 304a is controlled to drive the mounting plate 304b to move. When the rack 1 304c moves toward the direction of the gear 1 302, the spring 1 305b contracts to ensure that the limit frame 305a is engaged with the gear 1 302. Before the rack 1 304c is about to mesh with the gear 1 302, the limit frame 305a can move synchronously with the rack 1 304c under the push of the spring 1 305b. When the rack 1 304c is meshed with the gear 1 302, the limit frame 305a is disengaged from the gear 1 302, and the limit frame 305a no longer limits the rotation of the gear 1 302.

[0074] At the same time, when the reverse cleaning of the filter plate 106 is completed, the control support frame 304a drives the mounting plate 304b to move in the reverse direction. After the rack 1 304c moves and disengages from the gear 1 302, the limit frame 305a is engaged with the gear 1 302 for limiting. When the rack 1 304c continues to move away from the gear 1 302, the spring 1 305b between the limit frame 305a and the mounting plate 304b is stretched.

[0075] The remaining structure is the same as that of Example 2.

[0076] The usage process is as follows: when cleaning the filter plate 106, the support frame 304a is controlled to drive the mounting plate 304b to slide, thereby rotating the sealing plate 1 205b and the sealing plate 2 206b by 45° and 90° respectively, so that the helium enters the mounting box 101 from the air inlet pipe 103, and enters the mounting box 2 102 from the connecting pipe 201, and then passes through the connecting pipe 105 in the reverse direction to enter the mounting box 101, and finally enters the air outlet pipe 104 from the connecting pipe 3 202, and the helium passes through the filter plate 106 in the reverse direction to clean the blocked filter plate 106, and then controls the switch component 1 205 and the switch component 2 206 to return to the initial state, and continues to filter the helium through the connecting pipe 105.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dust filter for a high temperature reactor helium purification system, characterized in that: include, An installation unit (100), the installation unit (100) comprising an installation box one (101) and an installation box two (102), an air inlet pipe (103) arranged on the left side of the installation box one (101), an air outlet pipe (104) arranged on the right side of the installation box two (102), a connecting pipe one (105) arranged between the installation box one (101) and the installation box two (102), and a filter plate one (106) arranged in the connecting pipe one (105); and, A cleaning unit (200), the cleaning unit (200) comprising a second connecting pipe (201) arranged between the first installation box (101) and the second installation box (102), a third connecting pipe (202) arranged between the first installation box (101) and the air outlet pipe (104), a second filter plate (203) arranged in the second connecting pipe (201), a third filter plate (204) arranged in the third connecting pipe (202), a first switch component (205) arranged in the first installation box (101), and a second switch component (206) arranged in the second installation box (102); The two ends of the second connecting pipe (201) are respectively connected to the bottom sides of the first installation box (101) and the second installation box (102); The end of the connecting pipe three (202) is connected to the upper side of the installation box one (101).

2. The dust filter for high temperature reactor helium purification system according to claim 1, characterized in that: The switch assembly (205) comprises a mounting shaft (205a) rotatably disposed in the mounting box (101), a sealing plate (205b) disposed in the mounting shaft (205a), an arc-shaped plate (205c) disposed at the end of the sealing plate (205b), and a through hole (205d) disposed in the arc-shaped plate (205c); The arc plate (205c) is rotationally fitted with the ends of the air inlet pipe (103) and the connecting pipe three (202), and the end of the arc plate (205c) slides out of the installation box one (101); The sealing plate 1 (205b) cooperates with the connecting pipe 2 (201); The end of the installation shaft 1 (205a) passes through the installation box 1 (101).

3. The dust filter for high temperature reactor helium purification system according to claim 2, characterized in that: The switch assembly 2 (206) includes a second mounting shaft (206a) disposed in the second mounting box (102), and a second sealing plate (206b) disposed in the second mounting shaft (206a); The second sealing plate (206b) cooperates with the second connecting pipe (201) or the air outlet pipe (104); The end of the second installation shaft (206a) passes through the second installation box (102).

4. The dust filter for high temperature reactor helium purification system according to claim 3, characterized in that: The invention also includes a driving unit (300), wherein the driving unit (300) includes a support plate (301) arranged between the installation box one (101) and the installation box two (102), a gear one (302) arranged on the installation shaft one (205a), a gear two (303) arranged on the installation shaft two (206a), and a driving component (304) arranged on the support plate (301) and cooperating with the gear one (302) and the gear two (303).

5. The dust filter for high temperature reactor helium purification system according to claim 4, characterized in that: The driving assembly (304) comprises a support frame (304a) slidably arranged on the support plate (301), a mounting plate (304b) arranged on the support frame (304a), and a rack 1 (304c) and a rack 2 (304d) arranged at two ends of the mounting plate (304b); The rack one (304c) cooperates with the gear one (302); The rack 2 (304d) cooperates with the gear 2 (303).

6. The dust filter for high temperature reactor helium purification system according to claim 5, characterized in that: The gear 1 (302) and the gear 2 (303) have the same specifications, and the gear ratio between the rack 2 (304d) and the rack 1 (304c) is 2; The second installation box (102) is provided with an arc-shaped wall (102a) that fits with the second sealing plate (206b); The connecting pipe 1 (105) passes through the arc-shaped wall (102a) and communicates with the installation box 2 (102).

7. The dust filter for high temperature reactor helium purification system according to claim 6, characterized in that: The driving unit (300) further comprises a limiting component (305) arranged at the end of the mounting plate (304b); The limiting assembly (305) comprises a limiting frame (305a) slidably arranged at the end of the mounting plate (304b), and a spring (305b) arranged between the limiting frame (305a) and the supporting plate (301); The limiting frame (305a) is snap-fitted with the gear 1 (302).

8. The dust filter of the high temperature reactor helium purification system according to any one of claims 1 to 7, characterized in that: The filter plates 1 (106) are provided in plurality, and the filter apertures of the filter plates 1 (106) gradually decrease in the direction from the installation box 1 (101) to the installation box 2 (102).

9. The dust filter of the high temperature reactor helium purification system according to any one of claims 1 to 7, characterized in that: The air outlet pipe (104) is provided with a pressure sensor (107); The pressure sensor (107) is located behind the connection portion between the air outlet pipe (104) and the connecting pipe three (202).

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