Helium circulation purification equipment

Abstract

The utility model relates to helium purification technical field especially helium circulation purification equipment, including filter box and set up the filter box outside filter box cover, and, open cover subassembly, including fixedly connected in the fixed plate of filter box inner wall, set up the first guide plate and the second guide plate of fixed plate outside and fixedly connected in the support plate of filter box cover inner wall, and, positioning subassembly, including fixedly connected in the second mounting block of filter box inner wall and fixedly connected in the first mounting block of support plate end face, and, gas guide subassembly, including the gas inlet pipe of intercommunication in filter box outer wall, the utility model discloses through the opening and closing state linkage drive open cover subassembly of valve in gas guide subassembly and synchronous action with it, to realize the efficient opening and closing of filter box cover, the operation efficiency has been improved significantly, cooperate positioning subassembly, ensure that the box cover can be reliably locked in opening and closing position, effectively maintain the stable state of work.

Description

Technical Field

[0001] This utility model relates to the field of helium purification technology, and in particular to a helium circulation purification device. Background Technology

[0002] Helium is widely used in various industries, including military, scientific research, petrochemicals, refrigeration, semiconductors, medical applications, pipeline leak detection, and high-precision welding. Despite its wide range of uses and large consumption, helium is scarce in the air. Industrially, helium is separated and refined from natural gas, which contains approximately 0.5% helium. During the purification process, to reduce any moisture content, the purified helium is typically dried and filtered to improve its purity.

[0003] Chinese utility model patent announcement number CN222489542U, published on February 18, 2025, discloses a helium purification device, including a purification box, a collection box, and a horizontal plate installed between the purification box and the collection box. Two symmetrically arranged filter boxes are connected to the upper surface of the horizontal plate. Gas supply pipes are fixedly connected and connected to both sides of each filter box. Four gas supply pipes are respectively connected to the purification box and the collection box, and valves are fixedly connected and connected to the outer walls of each of the four gas supply pipes. A cover is hinged to the top of each adjacent side of the two filter boxes, and a locking device is connected to the other side of each cover. The other side of each locking device is connected to the two filter boxes, and a sealing gasket is connected between the cover and the filter boxes. This helium purification device, by installing two filter boxes on the horizontal plate, allows for continuous helium filtration by relying on the other filter box while the filter media in one filter box is being replaced, further improving the helium filtration efficiency and ensuring continuous helium filtration operation.

[0004] The device described above is designed with two filter boxes, which can continuously filter helium through the other filter box during the replacement of filter elements. However, during the replacement process, it is necessary to first control the opening and closing of the valve on the outer wall of the outer pipe of a single filter box, and then open the box cover, which increases the workload and makes the device have certain limitations in use. Utility Model Content

[0005] In view of the problems existing in the above or prior art, this utility model is proposed.

[0006] Therefore, the purpose of this invention is to provide a helium circulation purification device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a helium circulation purification device, comprising a filter box and a filter box cover disposed on the outside of the filter box; and a cover opening assembly, comprising a fixing plate fixedly connected to the inner wall of the filter box, a first guide plate and a second guide plate disposed on the outside of the fixing plate, and a support plate fixedly connected to the inner wall of the filter box cover; and a positioning assembly, comprising a second mounting block fixedly connected to the inner wall of the filter box and a first mounting block fixedly connected to the end face of the support plate; and a gas guiding assembly, comprising an air inlet pipe communicating with the outer wall of the filter box.

[0008] In a preferred embodiment of the helium circulation purification device of this utility model, the opening assembly further includes a drive rod that penetrates the filter box and the outer wall of the first guide plate, one end of the first guide plate is rotatably connected to the end face of the drive rod, and a connecting rod is fixedly connected to the outer wall of the fixing plate.

[0009] In a preferred embodiment of the helium circulation purification device of this utility model, one end of the outer wall of the second guide plate is rotatably connected to the end face of the connecting rod, the end face of the driving rod is fixedly connected to the first bevel gear, and the other ends of the first guide plate and the second guide plate are rotatably connected to the outer wall of the support plate.

[0010] In a preferred embodiment of the helium circulation purification device of this utility model, a first fixing rod is fixedly connected to the outer wall of the fixing plate and the support plate, a first spring is fixedly connected to the outer wall of the first fixing rod, a second fixing rod is fixedly connected to the end of the first spring, and the second fixing rod is fixedly connected to the outer wall of the support plate.

[0011] As a preferred embodiment of the helium circulation purification device of this utility model, the positioning component further includes a first positioning block and a second positioning block disposed inside the second mounting block, and an ear plate integrally formed on the outer wall of the first positioning block and the second positioning block. A second spring is fixedly connected to the outer wall of the ear plate, and the end of the second spring is fixedly connected to the outer wall of the second mounting block.

[0012] In a preferred embodiment of the helium circulation purification device of this utility model, the end face of the second positioning block is provided with a protrusion, the outer wall of the first positioning block is provided with a concave portion adapted to the protrusion, the outer wall of the second mounting block is fixedly connected with a through-hole, and the outer wall of the first mounting block is fixedly connected with an insertion portion.

[0013] In a preferred embodiment of the helium circulation purification device of this utility model, a valve is installed on the end face of the inlet pipe, and a second bevel gear is fixedly connected to the top of the valve, wherein the second bevel gear and the first bevel gear are meshed together.

[0014] The beneficial effects of this utility model of a helium circulation purification device are as follows: This utility model drives the opening and closing of the cover assembly in sync with the opening and closing state of the valve in the gas guiding assembly, thereby achieving efficient opening and closing of the filter box cover and significantly improving operating efficiency. At the same time, in conjunction with the positioning assembly, it ensures that the cover can be reliably locked in both the open and closed positions, effectively maintaining stable working conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a helium circulation purification device.

[0017] Figure 2 This is a schematic diagram of the opening component structure of a helium circulation purification device.

[0018] Figure 3 This is a schematic diagram of the positioning component structure of a helium circulation purification device.

[0019] Figure 4 This is a partial structural diagram of a helium circulation purification device.

[0020] The components are as follows: 1. Filter box body; 2. Filter box cover; 3. Opening assembly; 31. Fixing plate; 32. First bevel gear; 33. Drive rod; 34. First guide plate; 35. Second guide plate; 36. Connecting rod; 37. Support plate; 38. First fixing rod; 39. Second fixing rod; 310. First spring; 4. Positioning assembly; 41. First mounting block; 42. Insertion part; 43. Second mounting block; 44. First positioning block; 45. Second positioning block; 46. Ear plate; 47. Second spring; 48. Concave part; 49. Protruding part; 410. Rotating rod; 5. Air guide assembly; 51. Air inlet pipe; 52. Valve; 53. Second bevel gear. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Reference Figures 1 to 4 A helium circulation purification device,

[0025] It includes a filter housing 1 and a filter cover 2 disposed on the outside of the filter housing 1; wherein, the filter housing 1 and the filter cover 2 together constitute the main body of the filter box, and the filter element is installed on the inner wall of the filter housing 1 to achieve the filtration of helium.

[0026] And, the cover opening assembly 3 includes a fixing plate 31 fixedly connected to the inner wall of the filter box 1, a first guide plate 34 and a second guide plate 35 disposed on the outer side of the fixing plate 31, and a support plate 37 fixedly connected to the inner wall of the filter box cover 2; wherein, the first guide plate 34 and the second guide plate 35 are installed in a staggered manner, and their ends are both connected to the support plate 37. The design of the guide plates in different positions can ensure that the support plate 37 can be rotated 90°.

[0027] And, the positioning component 4 includes a second mounting block 43 fixedly connected to the inner wall of the filter box 1 and a first mounting block 41 fixedly connected to the end face of the support plate 37; wherein, the first mounting block 41 and the second mounting block 43 are respectively disposed on the inner wall of the filter box 1 and the surface of the support plate 37, so that the two can be inserted and positioned.

[0028] And, the air guiding assembly 5 includes an air inlet pipe 51 connected to the outer wall of the filter housing 1. Corresponding to the prior art, the filter housing is designed in two sets, and the filter housings are connected by the air inlet pipe 51, through which helium enters the filter housing 1.

[0029] Specifically, the cover opening assembly 3 also includes a drive rod 33 that penetrates the filter housing 1 and the outer wall of the first guide plate 34. One end of the first guide plate 34 is rotatably connected to the end face of the drive rod 33, and a connecting rod 36 is fixedly connected to the outer wall of the fixing plate 31. The drive rod 33 and the connecting rod 36 respectively control the first bevel gear 32 and the second guide plate 35 to rotate.

[0030] Furthermore, one end of the outer wall of the second guide plate 35 is rotatably connected to the end face of the connecting rod 36, and the end face of the drive rod 33 is fixedly connected to the first bevel gear 32. The other ends of the first guide plate 34 and the second guide plate 35 are both rotatably connected to the outer wall of the support plate 37. One end of both the first guide plate 34 and the second guide plate 35 is connected to the surface of the fixed plate 31, and their projections in the vertical direction are designed to be staggered. The other ends of both are located on the outer wall of the support plate 37. The first guide plate 34 acts as a drive plate to control the rotation of the support plate 37, and the second guide plate 35 cooperates with the first guide plate 34 to assist the support plate 37 in rotation.

[0031] Reference Figures 1-4 A first fixing rod 38 is fixedly connected to the outer wall of the fixing plate 31 and the support plate 37. A first spring 310 is fixedly connected to the outer wall of the first fixing rod 38. A second fixing rod 39 is fixedly connected to the end of the first spring 310. The second fixing rod 39 is fixedly connected to the outer wall of the support plate 37. The first fixing rod 38 and the second fixing rod 39 are connected by the first spring 310. The elastic force of the first spring 310 can ensure that the support plate 37 has a certain restoring ability, and its elastic potential energy can also ensure the cushioning during the flipping process of the support plate 37.

[0032] Specifically, the positioning component 4 also includes a first positioning block 44 and a second positioning block 45 disposed inside the second mounting block 43, and an ear plate 46 integrally formed on the outer wall of the first positioning block 44 and the second positioning block 45. A second spring 47 is fixedly connected to the outer wall of the ear plate 46, and the end of the second spring 47 is fixedly connected to the outer wall of the second mounting block 43. The first positioning block 44 and the second positioning block 45 together form an annular structure with a partially open top, which enables the insertion of the insertion part 42. The second spring 47 can be connected using the external ear plate 46.

[0033] Reference Figure 1 The second positioning block 45 has a protrusion 49 on its end face, and the outer wall of the first positioning block 44 has a recess 48 that matches the protrusion 49. The outer wall of the second mounting block 43 is fixedly connected to a rotating rod 410, which passes through the first positioning block 44 and the second positioning block 45. The outer wall of the first mounting block 41 is fixedly connected to a plug-in portion 42. A partial plug-in connection is required between the first positioning block 44 and the second positioning block 45. The rotating rod 410 connects the first positioning block 44 and the second positioning block 45, thereby controlling their offset about the rotating rod 410 as the axis.

[0034] Specifically, a valve 52 is installed on the end face of the air intake pipe 51, and a second bevel gear 53 is fixedly connected to the top of the valve 52. The second bevel gear 53 and the first bevel gear 32 are meshed together. The valve 52 controls the opening and closing of the air intake passage of the air intake pipe 51. When the operator controls the valve 52 to rotate according to the usage requirements, it can drive the second bevel gear 53 to rotate synchronously, providing power input to the cover opening assembly 3.

[0035] Working principle: During the purification process, helium is collected and enters the filter box 1 through the inlet pipe 51. When the filter element in the filter box 1 needs to be replaced, the valve 52 is rotated to close it. During the rotation of the valve 52, the second bevel gear 53 is driven to rotate synchronously. The second bevel gear 53 rotates synchronously with the first bevel gear 32. The rotation of the first bevel gear 32 drives the first guide plate 34 to make a corresponding movement trajectory through the drive rod 33. The end of the first guide plate 34 is connected to the support plate 37, thereby driving the support plate 37 and the filter box cover 2 to open synchronously. At the same time, the two ends of the second guide plate 35 are connected to the fixed plate 31 and the support plate 37 respectively. The second guide plate 35 and the support plate 37 open and close synchronously to achieve the auxiliary support effect.

[0036] During this process, the filter box cover 2 moves from a horizontal position to a vertical position. The insertion part 42 on the outer wall of the first mounting block 41 is squeezed out from the inside of the first positioning block 44 and the second positioning block 45. The first positioning block 44 and the second positioning block 45 are expanded by the second spring 47 to separate the insertion part 42 from the positioning block. After the replacement is completed, the valve 52 is opened, and the filter box cover 2 is reset and fits against the filter box body 1 to achieve a seal of the filter box. At this time, the insertion part 42 is inserted between the two positioning blocks to ensure the tightness between the box body and the cover.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A helium circulation purification device, characterized in that: include, Filter housing (1) and filter housing cover (2) disposed outside the filter housing (1); and, The cover opening assembly (3) includes a fixing plate (31) fixedly connected to the inner wall of the filter box (1), a first guide plate (34) and a second guide plate (35) disposed on the outer side of the fixing plate (31), and a support plate (37) fixedly connected to the inner wall of the filter box cover (2); and, The positioning component (4) includes a second mounting block (43) fixedly connected to the inner wall of the filter housing (1) and a first mounting block (41) fixedly connected to the end face of the support plate (37); and, The air guide assembly (5) includes an air inlet pipe (51) connected to the outer wall of the filter housing (1).

2. The helium circulation purification device as described in claim 1, characterized in that: The opening assembly (3) also includes a drive rod (33) that penetrates the outer wall of the filter box (1) and the first guide plate (34). One end of the first guide plate (34) is rotatably connected to the end face of the drive rod (33), and a connecting rod (36) is fixedly connected to the outer wall of the fixing plate (31).

3. A helium gas circulation purification apparatus as claimed in claim 2, characterized by: One end of the outer wall of the second guide plate (35) is rotatably connected to the end face of the connecting rod (36), and the end face of the drive rod (33) is fixedly connected to the first bevel gear (32). The other ends of the first guide plate (34) and the second guide plate (35) are rotatably connected to the outer wall of the support plate (37).

4. A helium gas circulation purification apparatus as claimed in claim 3, characterized by: The outer walls of the fixing plate (31) and the support plate (37) are fixedly connected to a first fixing rod (38), the outer wall of the first fixing rod (38) is fixedly connected to a first spring (310), the end of the first spring (310) is fixedly connected to a second fixing rod (39), and the second fixing rod (39) is fixedly connected to the outer wall of the support plate (37).

5. The helium circulation purification device as described in claim 4, characterized in that: The positioning component (4) further includes a first positioning block (44) and a second positioning block (45) disposed inside the second mounting block (43), and an ear plate (46) integrally formed on the outer wall of the first positioning block (44) and the second positioning block (45). A second spring (47) is fixedly connected to the outer wall of the ear plate (46), and the end of the second spring (47) is fixedly connected to the outer wall of the second mounting block (43).

6. A helium gas circulation purification apparatus as claimed in claim 5, characterized by: The end face of the second positioning block (45) is provided with a protrusion (49), the outer wall of the first positioning block (44) is provided with an inner recess (48) that matches the protrusion (49), the outer wall of the second mounting block (43) is fixedly connected with a rotating rod (410), the rotating rod (410) passes through the first positioning block (44) and the second positioning block (45), and the outer wall of the first mounting block (41) is fixedly connected with a plug-in part (42).

7. A helium gas circulation purification apparatus as claimed in claim 6, characterized by: A valve (52) is installed on the end face of the air intake pipe (51), and a second bevel gear (53) is fixedly connected to the top of the valve (52). The second bevel gear (53) and the first bevel gear (32) are engaged and connected.

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