Ultra-pure krypton deep denitrification device

Abstract

The utility model discloses an ultrapure krypton deep denitrification device which comprises a gas inlet pipe and a cabinet body installed at the lower end of the gas inlet pipe, a fixing frame is arranged in the cabinet body, and a plurality of adsorption bags are arranged in the fixing frame to adsorb nitrogen in krypton. An air outlet is formed in the outer wall of the lower end of the cabinet body to discharge denitrified krypton, an air suction fan is arranged in the cabinet body and located on the upper side of the air outlet to guide the moving direction of the krypton, and the air suction fan is electrically connected with an external power source; a guiding block is fixedly connected to the position, close to the lower side, in the cabinet body to guide the gas flow direction and lift the fixing frame, by installing a driving motor, a driving rod, a connecting rod and a connecting frame, full contact and separation operation between krypton and an adsorbent is achieved, the defect that the adsorbent cannot rotate is effectively overcome, the nitrogen removal efficiency is improved, and energy consumption is reduced. And the working efficiency and stability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to krypton gas denitrification, and specifically relates to an ultra-pure krypton gas deep denitrification device. Background Art

[0002] Ultrapure krypton deep denitrification device is a device used to remove impurity nitrogen from krypton. Krypton is a rare gas, usually used in gas discharge lamps, lasers and other fields. However, krypton may contain impurities such as nitrogen, which will affect the purity and performance of krypton. Therefore, it is necessary to use a deep denitrification device to remove impurities such as nitrogen from krypton to obtain ultrapure krypton. However, the adsorbent is in a fixed state in the fixed frame. When krypton passes through, the contact area between krypton and the adsorbent is limited, resulting in some absorbents unable to contact krypton, and other areas are less adsorbed, thus affecting the balance of the entire denitrification process. Utility Model Content

[0003] The utility model aims to provide an ultrapure krypton gas deep denitrification device to solve the problem proposed in the above background technology that the adsorbent is in a fixed state in the fixed frame and the contact area between the krypton gas and the adsorbent is limited when the krypton gas passes through.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrapure krypton gas deep denitrification device, comprising an air inlet pipe and a cabinet installed at the lower end of the air inlet pipe;

[0005] A fixing frame is provided inside the cabinet;

[0006] A plurality of adsorption bags are arranged inside the fixing frame to adsorb nitrogen in the krypton gas;

[0007] An air outlet is provided on the outer wall of the lower end of the cabinet to discharge the denitrified krypton gas, an air suction fan is provided inside the cabinet and on the upper side of the air outlet to guide the movement direction of the krypton gas, the air suction fan is electrically connected to an external power supply, and a guide block is fixedly connected to the lower side of the cabinet to guide the gas flow and hold up the fixed frame;

[0008] A driving motor is fixedly connected to the outer wall of the upper end of the cabinet, and the driving motor is electrically connected to an external power supply. A driving rod is arranged on the lower side of the driving motor, and a connecting rod is arranged on the lower side of the driving rod. A connecting frame is fixedly connected between the outer walls at the left and right ends of the connecting rod to be fixedly connected to the fixed frame.

[0009] Preferably, a positioning plate is fixedly connected between the lower end outer wall of the driving rod and the connecting rod to limit the position between the driving rod and the connecting rod, and a driving shaft is fixedly connected to the lower end outer wall of the driving motor to drive the driving rod to rotate under the drive of the driving motor.

[0010] Preferably, the upper outer wall of the fixing frame is fixedly connected with positioning screws passing upward through the interior of the connecting frame near the left and right sides respectively, and the other ends of the two positioning screws are threadedly connected with nuts to limit the position of the connecting frame.

[0011] Preferably, after the fixing frame and the connecting frame are connected, the lower side of the fixing frame is away from the upper side of the guide block, and a through hole for the positioning screw to pass through is opened inside the connecting frame.

[0012] Preferably, a sealed cabinet door is provided on the front side of the cabinet to seal the space inside the cabinet to block the flow of gas, and a plurality of fixing bolts are provided between the sealed cabinet door and the cabinet to limit the position of the sealed cabinet door.

[0013] Preferably, the four corners of the lower outer wall of the cabinet are fixedly connected with supporting feet, and a plurality of air-permeable plates are fixedly connected equidistantly from top to bottom between the inner walls at the left and right ends of the fixed frame to limit the position of the adsorption bag.

[0014] Preferably, the interior of the adsorption bag is filled with molecular sieves, and two air inlet pipes are provided.

[0015] Preferably, a ventilation hole inclined inwardly is provided inside the guide block, and a sealing strip is provided on the rear end outer wall of the sealed cabinet door.

[0016] Compared with the prior art, the utility model provides an ultra-pure krypton gas deep denitrification device, which has the following beneficial effects:

[0017] By installing a driving motor, a driving rod, a connecting rod and a connecting frame, when the nitrogen in the ultra-pure krypton gas is separated, the driving motor can be used to control the driving rod to drive the connecting rod to rotate. When the connecting rod rotates, the connecting frame connected to the fixed frame will be driven to rotate synchronously. During the rotation of the fixed frame, the adsorbent will be driven to rotate and move, thereby achieving full contact and separation between the krypton gas and the adsorbent, effectively solving the problem of a small contact area between the adsorbent and the krypton gas when the adsorbent cannot rotate, improving denitrification efficiency, reducing energy consumption, and improving work efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the structure of an ultra-pure krypton gas deep denitrification device.

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of an ultra-pure krypton gas deep denitrification device of the utility model.

[0020] Figure 3 It is a schematic diagram of the partial structure of the connecting rod area in a front view section of the utility model.

[0021] Figure 4 It is a schematic diagram of the local structure of the connecting rod area viewed from above of the utility model.

[0022] Figure 5 It is a schematic diagram of the partial structure of the cabinet area of ​​the utility model when viewed from above.

[0023] In the figure: 1. air inlet pipe; 2. fixing bolt; 3. sealing cabinet door; 4. cabinet body; 5. supporting foot; 6. air outlet; 7. air intake fan; 8. guide block; 9. fixing frame; 10. air permeable plate; 11. adsorption bag; 12. driving rod; 13. driving shaft; 14. driving motor; 15. connecting rod; 16. nut; 17. connecting frame; 18. positioning screw; 19. positioning plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-3 The ultrapure krypton gas deep denitrification device shown comprises an air inlet pipe 1 and a cabinet 4 installed at the lower end of the air inlet pipe 1;

[0026] A fixing frame 9 is provided inside the cabinet 4;

[0027] A plurality of adsorption bags 11 are arranged inside the fixed frame 9 to adsorb nitrogen in the krypton gas;

[0028] An air outlet 6 is provided on the outer wall of the lower end of the cabinet 4 to discharge the krypton gas after denitrification. An air suction fan 7 is provided inside the cabinet 4 and on the upper side of the air outlet 6 to guide the moving direction of the krypton gas. The air suction fan 7 is electrically connected to an external power supply. A guide block 8 is fixedly connected to the lower side of the cabinet 4 to guide the gas flow direction and lift the fixed frame 9. When separating the nitrogen from the krypton gas, the krypton gas delivery pipeline and the air inlet pipe 1 are connected, and the krypton gas is delivered to the inside of the cabinet 4 through the air inlet pipe 1. After the krypton gas enters the inside of the cabinet 4, the air suction fan 7 on the lower side will suck the gas downward, thereby driving the krypton gas to move from top to bottom. During the movement of the krypton gas, it will pass through the adsorption bag 11 inside the fixed frame 9, and the nitrogen in the krypton gas will be adsorbed by the nitrogen adsorbed substance inside the adsorption bag 11, so that no nitrogen remains inside the krypton gas after passing through the fixed frame 9. Then the krypton gas is discharged from the air outlet 6 through the air suction fan 7, and the separation of nitrogen from the krypton gas can be completed.

[0029] A driving motor 14 is fixedly connected to the outer wall of the upper end of the cabinet 4, and the driving motor 14 is electrically connected to an external power supply. A driving rod 12 is arranged on the lower side of the driving motor 14, and a connecting rod 15 is arranged on the lower side of the driving rod 12. A connecting frame 17 is fixedly connected between the outer walls at both ends of the left and right ends of the connecting rod 15 to be fixedly connected to the fixed frame 9. When the krypton gas flows through the fixed frame 9, the driving motor 14 drives the connecting rod 15 to rotate through the driving rod 12, and the connecting rod 15 drives the connecting frame 17 connected to the fixed frame 9 to rotate synchronously, thereby driving the fixed frame 9 to rotate. During the rotation of the fixed frame 9, the adsorption bag 11 will be driven to rotate, thereby increasing the contact area with the krypton gas and improving the analysis efficiency of nitrogen. The interior of the cabinet 4 is a circular warehouse wall, which can maintain the stability of the fixed frame 9 during rotation.

[0030] like Figure 3 and Figure 4 As shown, a positioning plate 19 is fixedly connected between the lower end outer wall of the driving rod 12 and the connecting rod 15 to limit the position between the driving rod 12 and the connecting rod 15, and a driving shaft 13 is fixedly connected to the lower end outer wall of the driving motor 14 to drive the driving rod 12 to rotate under the drive of the driving motor 14. The upper end outer wall of the fixed frame 9 is fixedly connected with positioning screws 18 that penetrate upward through the interior of the connecting frame 17 near the left and right sides respectively, and the other ends of the two positioning screws 18 are threadedly connected with nuts 16 to limit the position of the connecting frame 17.

[0031] When driving the fixed frame 9 to rotate, first lift the fixed frame 9, pass the positioning screws 18 on the upper side of the fixed frame 9 through the connecting frame 17, and then screw the nuts 16 on the positioning screws 18 that exceed the connecting frame 17 to connect the connecting frame 17 and the fixed frame 9. When working, the driving motor 14 transmits power to the driving rod 12 through the driving shaft 13 to drive the fixed frame 9 to rotate.

[0032] like Figure 2 and Figure 3 As shown, after the fixing frame 9 and the connecting frame 17 are connected, the lower side of the fixing frame 9 is away from the upper side of the guide block 8, and a through hole for the positioning screw 18 to pass through is opened inside the connecting frame 17.

[0033] After the fixing frame 9 and the connecting frame 17 are connected, the fixing frame 9 can be placed in a suspended state. When the subsequent driving motor 14 drives the fixing frame 9 to rotate, it can rotate more stably. The positioning screw 18 passes through the connecting frame 17 from the through opening to pre-position the connecting frame 17 and the fixing frame 9.

[0034] like Figure 1 and Figure 2As shown, a sealed cabinet door 3 is provided on the front side of the cabinet body 4 to seal the space inside the cabinet body 4 to block the flow of gas, a plurality of fixing bolts 2 are provided between the sealed cabinet door 3 and the cabinet body 4 to limit the position of the sealed cabinet door 3, and support feet 5 are fixedly connected at the four corners of the lower end outer wall of the cabinet body 4, and a plurality of air-permeable plates 10 are fixedly connected between the inner walls of the left and right ends of the fixed frame 9 at equal distances from top to bottom to limit the position of the adsorption bag 11.

[0035] The front opening of the cabinet body 4 can be sealed by the sealing cabinet door 3 to avoid gas leakage during the separation of nitrogen. The sealing cabinet door 3 and the cabinet body 4 can be connected by the fixing bolts 2 to facilitate subsequent disassembly and replacement of the adsorption bag 11. The breathable plate 10 can support the position of the adsorption bag 11 without blocking the flow of krypton gas.

[0036] like Figure 1 and Figure 2 As shown, the interior of the adsorption bag 11 is filled with molecular sieves, two air inlet pipes 1 are provided, an inwardly inclined vent is provided inside the guide block 8, and a sealing strip is provided on the rear end outer wall of the sealed cabinet door 3.

[0037] The nitrogen in the krypton gas can be screened out by the molecular sieve for adsorption. The two air inlet pipes 1 can increase the speed of krypton gas delivery. The inwardly inclined vents can guide the air to the position of the air intake fan 7 stably and quickly. The sealing strip can fill the gap between the sealed cabinet door 3 and the cabinet body 4 to avoid gas leakage.

[0038] The implementation principle of this embodiment is as follows: when separating nitrogen from krypton gas, the krypton gas delivery pipeline and the air inlet pipe 1 are connected, and the krypton gas is delivered to the inside of the cabinet 4 through the air inlet pipe 1. After the krypton gas enters the inside of the cabinet 4, the suction fan 7 on the lower side will suck the gas downward, thereby driving the krypton gas to move from top to bottom. During the movement of the krypton gas, it will pass through the adsorption bag 11 inside the fixed frame 9, and the nitrogen in the krypton gas will be adsorbed by the adsorption nitrogen material inside the adsorption bag 11, so that no nitrogen remains inside the krypton gas after passing through the fixed frame 9. Then the krypton gas is discharged from the air outlet 6 through the suction fan 7, and the separation of nitrogen from the krypton gas can be completed. When the krypton gas flows through the inside of the fixed frame 9, the driving motor 14 drives the connecting rod 15 to rotate through the driving rod 12, and the connecting rod 15 drives the connecting frame 17 connected to the fixed frame 9 to rotate synchronously, thereby driving the fixed frame 9 to rotate. During the rotation of the fixed frame 9, the adsorption bag 11 will be driven to rotate, thereby increasing the contact area between the krypton gas and the krypton gas, thereby improving the analysis efficiency of the nitrogen gas.

[0039] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrapure krypton gas deep denitrification device, comprising an air inlet pipe (1) and a cabinet (4) installed at the lower end of the air inlet pipe (1); A fixing frame (9) is provided inside the cabinet (4); A plurality of adsorption bags (11) are arranged inside the fixing frame (9) to adsorb nitrogen in the krypton gas; The outer wall of the lower end of the cabinet (4) is provided with an air outlet (6) to discharge the denitrified krypton gas, and an air suction fan (7) is arranged inside the cabinet (4) and on the upper side of the air outlet (6) to guide the moving direction of the krypton gas. The air suction fan (7) is electrically connected to an external power supply, and a guide block (8) is fixedly connected to the lower side of the cabinet (4) to guide the gas flow direction and to support the fixed frame (9); Features: A driving motor (14) is fixedly connected to the outer wall of the upper end of the cabinet (4), and the driving motor (14) is electrically connected to an external power supply. A driving rod (12) is arranged on the lower side of the driving motor (14), and a connecting rod (15) is arranged on the lower side of the driving rod (12). A connecting frame (17) is fixedly connected between the outer walls at the left and right ends of the connecting rod (15) to be fixedly connected to the fixing frame (9).

2. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: A positioning plate (19) is fixedly connected between the lower end outer wall of the driving rod (12) and the connecting rod (15) to limit the position between the driving rod (12) and the connecting rod (15), and a driving shaft (13) is fixedly connected to the lower end outer wall of the driving motor (14) to drive the driving rod (12) to rotate under the drive of the driving motor (14).

3. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: The upper outer wall of the fixing frame (9) and the left and right sides thereof are fixedly connected with positioning screws (18) which pass upward through the interior of the connecting frame (17); the other ends of the two positioning screws (18) are threadedly connected with nuts (16) to limit the position of the connecting frame (17).

4. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: After the fixing frame (9) and the connecting frame (17) are connected, the lower side of the fixing frame (9) is away from the upper side of the guide block (8), and a through hole for a positioning screw (18) to pass through is opened inside the connecting frame (17).

5. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: A sealed cabinet door (3) is arranged on the front side of the cabinet body (4) to seal the space inside the cabinet body (4) and block the flow of gas, and a plurality of fixing bolts (2) are arranged between the sealed cabinet door (3) and the cabinet body (4) to limit the position of the sealed cabinet door (3).

6. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: Support legs (5) are fixedly connected at the four corners of the lower outer wall of the cabinet (4), and a plurality of air-permeable plates (10) are fixedly connected between the inner walls at the left and right ends of the fixed frame (9) at equal distances from top to bottom to limit the position of the adsorption bag (11).

7. The ultrapure krypton gas deep denitrification device according to claim 1, characterized in that: The interior of the adsorption bag (11) is filled with molecular sieves, and two air inlet pipes (1) are provided.

8. The ultrapure krypton gas deep denitrification device according to claim 5, characterized in that: An inwardly inclined ventilation opening is provided inside the guide block (8), and a sealing rubber strip is provided on the rear end outer wall of the sealed cabinet door (3).

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