A nitrogen purity detection device suitable for nitrogen production

Abstract

The present invention discloses a nitrogen purity detection device suitable for nitrogen production, which belongs to the technical field of nitrogen purity detection, and comprises a nitrogen preparation tank, wherein one side of the top of the nitrogen preparation tank is connected to a nitrogen delivery pipe, and a fixed cylinder and a connecting frame are respectively arranged on the nitrogen delivery pipe, and a cleaning component is arranged inside the fixed cylinder. In the present invention, a driving motor drives a rotating shaft, a first gear, a first ring gear, a connecting frame, a first groove, a fixed frame, a protrusion and a cleaning block to rotate, and at the same time, an electric telescopic rod drives a connecting plate, a stopper, a protrusion, a flat plate, a vertical plate and a conical block to move downward, so that the top of the cleaning block contacts the detection head at the bottom end of the gas sensor, so as to perform online cleaning on the bottom end of the gas sensor, and prevent the impurities contained in the nitrogen gas from adhering to the surface of the gas sensor and blocking its internal pores during the long-term use of the gas sensor, thereby preventing the sensitivity and accuracy of the gas sensor from being affected.

Description

Technical Field

[0001] The invention belongs to the technical field of nitrogen purity detection, and in particular relates to a nitrogen purity detection device suitable for nitrogen production. Background Art

[0002] Nitrogen is one of the most important components in the atmosphere, accounting for about 78% of the atmosphere. Nitrogen also has many uses in industrial production, such as being used as an inert gas for packaging, preserving food and protecting materials. In the process of nitrogen production, nitrogen oxidation reactions are usually involved. In order to ensure that the purity of nitrogen meets the requirements of production, it is necessary to use a device to perform online detection of the purity of nitrogen.

[0003] For example, a nitrogen purity analyzer device disclosed in a Chinese patent document (CN217060146U) comprises a nitrogen analyzer and a proper amount of nitrogen extraction mechanism, wherein the nitrogen analyzer is provided with an external detection terminal, and the proper amount of nitrogen extraction mechanism comprises a nitrogen boosting mechanism for storing nitrogen, a leak-proof component built into one end of the inner cavity of the nitrogen boosting mechanism, and an airflow guide component arranged on one side close to the leak-proof component, by installing a horizontal tube on a traditional extended sampling tube, installing a gas collecting component at one end of the inner cavity of the horizontal tube, and connecting the boosting component at the outer end of the gas collecting component, and at the same time, A turbine capable of internal supercharging is movably installed in the inner cavity of the pressure piece, and is combined with a sealing piece and a gas blocking plate for clearing nitrogen from the inner cavity of the horizontal tube and a gear rod housed therein. When nitrogen is filled into the inner cavity of the horizontal tube, the gear rod, the sealing piece and the turbine are implemented in a multiple combination, so that the nitrogen filled into the inner cavity of the horizontal tube can be quantitatively guided to the detection end of the nitrogen analyzer. However, during the nitrogen detection process of the device, impurities in the nitrogen may adhere to the detection surface, making it inconvenient to clean the surface of the detection device, resulting in affecting the sensitivity and accuracy of the detection device. Therefore, certain improvements are needed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that impurities in nitrogen may adhere to the detection surface during nitrogen detection, making it inconvenient to clean the surface of the detection device, resulting in affecting the sensitivity and accuracy of the detection device, and to propose a nitrogen purity detection device suitable for nitrogen production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A nitrogen purity detection device suitable for nitrogen production, comprising a nitrogen preparation tank, one side of the top of the nitrogen preparation tank is connected to a nitrogen delivery pipe, a fixing cylinder and a connecting frame are respectively provided on the nitrogen delivery pipe, a cleaning component is provided inside the fixing cylinder, and a filtering cleaning component and a collecting component are respectively provided inside the connecting frame;

[0007] The cleaning assembly includes a connecting plate and a stopper, a connecting frame is provided below the stopper, a first groove is provided inside the connecting frame, the bottom of the connecting frame extends to the inside of the nitrogen delivery pipe and is fixedly connected to a fixing frame, a first spring is fixedly connected to the top side of the fixing frame, a flat plate is fixedly connected to the bottom of the first spring, a protrusion is fixedly connected to the top of the flat plate, the top of the protrusion extends into the first groove, a vertical plate is connected to one side below the flat plate, a conical block is fixedly connected to one side of the vertical plate, a connecting frame is provided below the conical block, a roller is rotatably connected to one side of the connecting frame, a sliding plate is fixedly connected to the other side of the connecting frame, a second spring is fixedly connected to the other side of the sliding plate, the other side of the second spring is fixedly connected to the inner wall of the fixing frame, and a cleaning block is provided below the second spring.

[0008] As a further description of the above technical solution:

[0009] A horizontal plate is arranged above the connecting plate, an electric telescopic rod is fixedly connected to the top of the horizontal plate, one end of the output shaft of the electric telescopic rod extends to the bottom of the horizontal plate and is fixedly connected to the top of the connecting plate, the horizontal plate is fixedly connected to the inside of the fixed cylinder, the bottom of the fixed cylinder is fixedly connected to the outer peripheral side of the nitrogen delivery pipe by screws, a first through hole is opened in the nitrogen delivery pipe, a gas sensor is arranged in the first through hole, and the top of the gas sensor is fixedly connected to the bottom of the fixed cylinder.

[0010] As a further description of the above technical solution:

[0011] The connecting frame is rotatably connected inside the fixed cylinder and the nitrogen delivery pipe, and the cross section of the connecting frame is set to be T-shaped. The protrusion is slidably connected inside the fixed frame and the connecting frame. The roller is set on the side opposite to the vertical plate, and the stopper is set to be ring-shaped.

[0012] As a further description of the above technical solution:

[0013] A first ring gear is fixedly connected to the outer peripheral side of the connecting frame, a first gear is meshedly connected to an outer side of the first ring gear, the first gear is arranged on a side relative to the connecting frame, a rotating shaft is fixedly connected to the inside of the first gear, the rotating shaft is rotatably connected to the inside of the fixed cylinder, a driving motor is fixedly connected to the top of the rotating shaft, a fixing frame is fixedly connected to the top of the driving motor, and one side of the fixing frame is fixedly connected to the inner wall of the fixed cylinder.

[0014] As a further description of the above technical solution:

[0015] The filter cleaning assembly includes a connecting shaft, which is rotatably connected to the inside of a connecting frame, and the inner circumference of the connecting frame is fixedly connected to the outer wall of the nitrogen delivery pipe. One end of the connecting shaft extends to the inside of a fixed cylinder and is fixedly connected to a first cone wheel, and one side of the top of the first cone wheel is meshedly connected to a second cone wheel, and the second cone wheel is fixedly connected to the inside of a rotating shaft.

[0016] As a further description of the above technical solution:

[0017] A second gear is fixedly connected to the side of the connecting shaft away from the first bevel gear, a second ring gear is meshedly connected to the bottom of the second gear, an annular block is fixedly connected to the inner circumference of the second ring gear, the other side of the annular block extends to the inside of the nitrogen delivery pipe and is fixedly connected to the connecting block, a cleaning brush is fixedly connected to one side of the connecting block, a filter is provided on the other side of the cleaning brush, the filter is fixedly connected to the inside of the nitrogen delivery pipe, and the annular block and the second ring gear are rotatably sealed inside the connecting frame and the nitrogen delivery pipe.

[0018] As a further description of the above technical solution:

[0019] The collecting assembly includes a cam, which is fixedly connected to the outer peripheral side of the connecting shaft, and a slide plate is provided on the top of the cam, an airbag is fixedly connected to the top of the slide plate, and third springs are provided on both sides of the airbag, and both sides of the third spring are respectively fixedly connected to the slide plate and the inner wall of the connecting frame.

[0020] As a further description of the above technical solution:

[0021] One side of the airbag is connected to an air intake pipe, and the other end of the air intake pipe is connected to a mounting frame. The inner circumference of the mounting frame is fixedly connected to the inner wall of the connecting frame. The cross-section of the mounting frame is provided with a ring shape. One side of the mounting frame is rotatably connected to a ring frame, and the other end of the ring frame is fixedly connected to the second ring gear.

[0022] As a further description of the above technical solution:

[0023] One side of the annular frame is connected to a second cavity, which is located inside the second annular gear; one side of the second cavity is connected to a first cavity, which is arranged inside the annular block; the other end of the first cavity is connected to a third cavity, which is located inside the connecting block; one side of the third cavity is connected to an exhaust port, which is arranged inside the connecting block, and the exhaust port is arranged on the side opposite to the filter.

[0024] As a further description of the above technical solution:

[0025] The other side of the airbag is connected to an outlet pipe, and both the inlet pipe and the outlet pipe are provided with a one-way valve. The other end of the outlet pipe is connected to a collection frame, and a filter plate is provided on the bottom side of the collection frame. A reflux pipe is provided below the filter plate. The top end of the reflux pipe is connected to the bottom of the collection frame, and the bottom end of the reflux pipe extends to the inside of the nitrogen delivery pipe, and a one-way valve is provided on the reflux pipe.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, by setting up a cleaning component, the driving motor drives the rotating shaft, the first gear, the first ring gear, the connecting frame, the first groove, the fixed frame, the protrusion and the cleaning block to rotate, and at the same time, the electric telescopic rod drives the connecting plate and the block to move downward, so that the block drives the protrusion, the flat plate, the vertical plate and the conical block to move downward, and during the downward movement of the conical block, the cleaning block is driven by the roller and the sliding plate to move toward the gas sensor, so that the top of the cleaning block contacts the detection head at the bottom end of the gas sensor, so as to perform online cleaning on the bottom end of the gas sensor, thereby preventing the impurities contained in the nitrogen gas from adhering to the surface of the gas sensor and clogging its internal pores during the long-term use of the gas sensor, thereby preventing the sensitivity and accuracy of the gas sensor from being affected.

[0028] 2. In the present invention, by providing a filtering and cleaning component, the filter screen can filter its internal impurities, thereby helping to improve the production quality of nitrogen, and helping to reduce the adhesion of impurities in the nitrogen to the gas sensor, thereby preventing the detection accuracy of the gas sensor from being affected, and improving the detection accuracy of the device during use. The rotating shaft can drive the second cone wheel, the first cone wheel, the connecting shaft, the second gear, the second ring gear, the ring block, the connecting block and the cleaning brush to rotate, and the surface of the filter screen is cleaned by the cleaning brush to prevent the filter screen from being blocked during long-term use of the device, thereby preventing the detection stability of the device from being affected.

[0029] 3. In the present invention, through the setting of the collecting assembly, the connecting shaft will drive the cam to rotate and continuously squeeze the slide plate, the airbag and the third spring. During the process of the third spring driving the airbag to reset and stretch, the impurities cleaned at the filter screen will be extracted through the installation frame, the annular frame, the first cavity, the second cavity, the third cavity and the air suction port through the air inlet pipe, and transported to the inside of the collection frame through the air outlet pipe, and uniformly filtered and collected by the filter plate inside the collection frame, thereby improving the applicability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the nitrogen delivery pipe in the present invention;

[0032] Figure 3 Schematic diagram of the internal three-dimensional structure of the nitrogen delivery pipe in the present invention;

[0033] Figure 4 For the present invention Figure 3 A local enlarged structural schematic diagram;

[0034] Figure 5 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B;

[0035] Figure 6 For the present invention Figure 3 A schematic diagram of the local enlarged structure at C;

[0036] Figure 7 It is a partial three-dimensional structural schematic diagram of the cleaning component in the present invention.

[0037] Legend:

[0038] 1. Nitrogen preparation tank; 2. Nitrogen delivery pipe; 3. Fixed cylinder; 4. Connecting frame; 5. Cleaning assembly; 501. Horizontal plate; 502. Electric telescopic rod; 503. Connecting plate; 504. Stopper; 505. Connecting frame; 506. First groove; 507. Fixed frame; 508. First spring; 509. Flat plate; 510. Bump; 511. Vertical plate; 512. Conical block; 513. Connecting frame; 514. Roller; 515. Sliding plate; 516. Second spring; 517. First ring gear; 518. First gear; 519. Rotating shaft; 520, driving motor; 6, gas sensor; 7, filter cleaning assembly; 701, connecting shaft; 702, first cone wheel; 703, second cone wheel; 704, second gear; 705, second ring gear; 706, ring block; 707, connecting block; 708, cleaning brush; 709, filter; 8, collecting assembly; 801, cam; 802, slide plate; 803, air bag; 804, third spring; 805, intake pipe; 806, mounting frame; 807, ring frame; 808, first cavity; 809, collecting frame; 810, reflux pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 7The present invention provides a technical solution: a nitrogen purity detection device suitable for nitrogen production, comprising a nitrogen preparation tank 1, a nitrogen delivery pipe 2 is connected to one side of the top of the nitrogen preparation tank 1, a fixing cylinder 3 and a connecting frame 4 are respectively arranged on the nitrogen delivery pipe 2, a cleaning component 5 is arranged inside the fixing cylinder 3, and a filtering cleaning component 7 and a collecting component 8 are respectively arranged inside the connecting frame 4.

[0041] The cleaning assembly 5 includes a connecting plate 503 and a stopper 504, a connecting frame 505 is provided below the stopper 504, a first groove 506 is provided inside the connecting frame 505, the bottom of the connecting frame 505 extends to the inside of the nitrogen delivery pipe 2 and is fixedly connected to a fixing frame 507, a first spring 508 is fixedly connected to the top side of the fixing frame 507, a flat plate 509 is fixedly connected to the bottom of the first spring 508, a protrusion 510 is fixedly connected to the top of the flat plate 509, the top of the protrusion 510 extends to the inside of the first groove 506, a vertical plate 511 is connected to one side below the flat plate 509, and the vertical plate 511 is connected to the bottom of the flat plate 509. A conical block 512 is fixedly connected to one side of the plate 511, a connecting frame 513 is arranged below the conical block 512, a roller 514 is rotatably connected to one side of the connecting frame 513, a sliding plate 515 is fixedly connected to the other side of the connecting frame 513, a second spring 516 is fixedly connected to the other side of the sliding plate 515, the other side of the second spring 516 is fixedly connected to the inner wall of the fixed frame 507, a cleaning block is arranged below the second spring 516, a horizontal plate 501 is arranged above the connecting plate 503, an electric telescopic rod 502 is fixedly connected to the top of the horizontal plate 501, and an output shaft of the electric telescopic rod 502 is arranged One end extends to the bottom of the horizontal plate 501 and is fixedly connected to the top of the connecting plate 503. The horizontal plate 501 is fixedly connected to the inside of the fixed cylinder 3. The bottom of the fixed cylinder 3 is fixedly connected to the outer peripheral side of the nitrogen delivery pipe 2 by screws. A first through hole is opened inside the nitrogen delivery pipe 2. A gas sensor 6 is arranged inside the first through hole. The top of the gas sensor 6 is fixedly connected to the bottom of the fixed cylinder 3. The connecting frame 505 is rotatably connected to the inside of the fixed cylinder 3 and the nitrogen delivery pipe 2, and the cross section of the connecting frame 505 is set to T shape. The protrusion 510 is slidably connected to the inside of the fixed frame 507 and the connecting frame 505. The wheel 514 is arranged on a side relative to the vertical plate 511, the block 504 is arranged in a ring shape, the outer peripheral side of the connecting frame 505 is fixedly connected with a first ring gear 517, the outer side of the first ring gear 517 is meshedly connected with a first gear 518, the first gear 518 is arranged on a side relative to the connecting frame 4, the interior of the first gear 518 is fixedly connected with a rotating shaft 519, the rotating shaft 519 is rotatably connected to the interior of the fixed cylinder 3, the top of the rotating shaft 519 is fixedly connected with a driving motor 520, the top of the driving motor 520 is fixedly connected with a fixing frame, and one side of the fixing frame is fixedly connected to the inner wall of the fixed cylinder 3.

[0042] Specific implementation method: first place the nitrogen preparation tank 1 in a suitable place, then transport the external nitrogen to the device to transport the nitrogen to the inside of the nitrogen preparation tank 1 through the nitrogen delivery pipe 2, and the gas sensor 6 will perform online detection of the purity of the nitrogen gas, and start the electric telescopic rod 502 and the drive motor 520 according to actual needs, and drive the rotating shaft 519 and the first gear 518 to rotate through the drive motor 520, and use the linkage effect between the first gear 518 and the first ring gear 517 to transmit power to the first ring gear 517, so that the first ring gear 517 drives the connecting frame 505, the first groove 506, the fixed frame 507, the protrusion 510 and the cleaning block to rotate, and at the same time, the electric telescopic rod 502 will drive the connecting plate 503 and the stopper 504 to move downward The stopper 504 moves toward the first groove 506 and squeezes the protrusion 510, the flat plate 509 and the first spring 508, so that the flat plate 509 drives the vertical plate 511 and the conical block 512 to move downward. During the downward movement of the conical block 512, the roller 514, the sliding plate 515 and the second spring 516 are squeezed, so that the sliding plate 515 drives the cleaning block to move toward the gas sensor 6, so that the top of the cleaning block contacts the detection head at the bottom of the gas sensor 6, so as to perform online cleaning on the bottom of the gas sensor 6, thereby preventing the impurities contained in the nitrogen gas from adhering to the surface of the gas sensor 6 and clogging its internal pores during the long-term use of the gas sensor 6, thereby preventing the sensitivity and accuracy of the gas sensor 6 from being affected.

[0043] The filter cleaning assembly 7 includes a connecting shaft 701, which is rotatably connected to the inside of the connecting frame 4, and the inner peripheral side of the connecting frame 4 is fixedly connected to the outer wall of the nitrogen delivery pipe 2. One end of the connecting shaft 701 extends to the inside of the fixed cylinder 3 and is fixedly connected to the first cone wheel 702. The top side of the first cone wheel 702 is meshedly connected to the second cone wheel 703, and the second cone wheel 703 is fixedly connected to the inside of the rotating shaft 519. The side of the connecting shaft 701 away from the first cone wheel 702 is fixedly connected to the second gear 704. The second gear 704 A second ring gear 705 is meshedly connected at the bottom, and a ring block 706 is fixedly connected to the inner circumference of the second ring gear 705. The other side of the ring block 706 extends to the inside of the nitrogen delivery pipe 2 and is fixedly connected to a connecting block 707. A cleaning brush 708 is fixedly connected to one side of the connecting block 707, and a filter screen 709 is provided on the other side of the cleaning brush 708. The filter screen 709 is fixedly connected to the inside of the nitrogen delivery pipe 2. The ring block 706 and the second ring gear 705 are rotatably sealed inside the connecting frame 4 and the nitrogen delivery pipe 2.

[0044] Specific implementation method: The filter screen 709 will filter the impurities inside it, help improve the production quality of nitrogen, and help reduce the adhesion of impurities inside nitrogen to the gas sensor 6, prevent the detection accuracy of the gas sensor 6 from being affected, and improve the detection accuracy of the device during use, so that the rotating shaft 519 will drive the second cone wheel 703 to rotate, and utilize the linkage effect between the second cone wheel 703 and the first cone wheel 702 to transmit power to the first cone wheel 702, so that the first cone wheel 702 drives the connecting shaft 701 and the second gear 704 to rotate, and then utilize the linkage effect between the second gear 704 and the second ring gear 705 to transmit power to the second ring gear 705, so that the second ring gear 705 drives the ring block 706, the connecting block 707 and the cleaning brush 708 to rotate, and the surface of the filter screen 709 is cleaned by the cleaning brush 708 to prevent the filter screen 709 from being blocked during long-term use of the device, thereby preventing the detection stability of the device from being affected.

[0045] The collecting component 8 includes a cam 801, which is fixedly connected to the outer peripheral side of the connecting shaft 701, and a slide plate 802 is arranged on the top of the cam 801, and an air bag 803 is fixedly connected to the top of the slide plate 802, and a third spring 804 is arranged on both sides of the air bag 803, and the third spring 804 is respectively fixedly connected to the slide plate 802 and the inner wall of the connecting frame 4 on both sides, one side of the air bag 803 is connected to an air intake pipe 805, and the other end of the air intake pipe 805 is connected to a mounting frame 806, and the inner peripheral side of the mounting frame 806 is fixedly connected to the inner wall of the connecting frame 4, and the cross section of the mounting frame 806 is provided with a ring shape, and an annular frame 807 is rotatably connected to one side of the mounting frame 806, and the other end of the annular frame 807 is fixedly connected to the second ring gear 705, and one side of the annular frame 807 is connected to the second cavity, and the second cavity is located at the second ring Inside the gear 705, one side of the second cavity is connected to the first cavity 808, and the first cavity 808 is arranged inside the annular block 706. The other end of the first cavity 808 is connected to the third cavity, and the third cavity is located inside the connecting block 707. One side of the third cavity is connected to a vacuum port, which is arranged inside the connecting block 707, and the vacuum port is arranged on the side relative to the filter screen 709. The other side of the airbag 803 is connected to an air outlet pipe, and both the air inlet pipe 805 and the air outlet pipe are provided with a one-way valve. The other end of the air outlet pipe is connected to a collecting frame 809, and a filter plate is arranged on the bottom side of the collecting frame 809. A reflux pipe 810 is arranged below the filter plate. The top of the reflux pipe 810 is connected to the bottom of the collecting frame 809, and the bottom of the reflux pipe 810 extends to the inside of the nitrogen delivery pipe 2, and a one-way valve is arranged on the reflux pipe 810.

[0046] Specific implementation method: the connecting shaft 701 drives the cam 801 to rotate. During the rotation, the cam 801 continuously squeezes the slide plate 802, the airbag 803 and the third spring 804. During the third spring 804 drives the airbag 803 to reset and stretch. The installation frame 806, the annular frame 807, the first cavity 808, the second cavity, the third cavity and the air suction port are used to extract the clean impurities at the filter screen 709 through the air inlet pipe 805, and transport them to the inside of the collection frame 809 through the air outlet pipe. The impurities are uniformly filtered and collected by the filter plate inside the collection frame 809, and part of the nitrogen contained is transported to the inside of the nitrogen delivery pipe 2 through the reflux pipe 810, thereby improving the applicability of the device during use.

[0047] Working principle: When in use, first place the nitrogen preparation tank 1 in a suitable place, then transport the external nitrogen to the device to transport the nitrogen to the inside of the nitrogen preparation tank 1 through the nitrogen delivery pipe 2, the gas sensor 6 will perform online detection of the purity of the nitrogen gas, and the filter 709 will filter its internal impurities. The electric telescopic rod 502 and the drive motor 520 are started according to actual needs, and the drive motor 520 drives the rotating shaft 519 and the first gear 518 to rotate, and the linkage effect between the first gear 518 and the first ring gear 517 is used to transmit power to the first ring gear 517, so that the first ring gear 517 drives the connecting frame 505, the first groove 506, and the fixed frame 507, the protrusion 510 and the cleaning block rotate, and the electric telescopic rod 502 drives the connecting plate 503 and the stopper 504 to move downward, so that the stopper 504 moves toward the first groove 506 and squeezes the protrusion 510, the flat plate 509 and the first spring 508, so that the flat plate 509 drives the vertical plate 511 and the conical block 512 to move downward, and the conical block 512 squeezes the roller 514, the sliding plate 515 and the second spring 516 during the downward movement, so that the sliding plate 515 drives the cleaning block to move toward the gas sensor 6, so that the top of the cleaning block contacts the detection head at the bottom of the gas sensor 6, so as to perform online cleaning on the bottom of the gas sensor 6;

[0048] At the same time, the rotating shaft 519 drives the second cone wheel 703 to rotate, and utilizes the linkage effect between the second cone wheel 703 and the first cone wheel 702 to transmit power to the first cone wheel 702, so that the first cone wheel 702 drives the connecting shaft 701 and the second gear 704 to rotate, and then utilizes the linkage effect between the second gear 704 and the second ring gear 705 to transmit power to the second ring gear 705, so that the second ring gear 705 drives the ring block 706, the connecting block 707 and the cleaning brush 708 to rotate, and the surface of the filter screen 709 is cleaned by the cleaning brush 708;

[0049] At the same time, the connecting shaft 701 will drive the cam 801 to rotate. During the rotation, the cam 801 will continuously squeeze the slide plate 802, the airbag 803 and the third spring 804. During the third spring 804 drives the airbag 803 to reset and stretch, the installation frame 806, the annular frame 807, the first cavity 808, the second cavity, the third cavity and the air suction port will be used through the air inlet pipe 805 to extract the clean impurities at the filter screen 709, and transport them to the inside of the collection frame 809 through the air outlet pipe, and they will be uniformly filtered and collected by the filter plate inside the collection frame 809, and some of the nitrogen contained will be transported to the inside of the nitrogen delivery pipe 2 through the reflux pipe 810, which is convenient to use.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nitrogen purity detection device suitable for nitrogen production, comprising a nitrogen preparation tank (1), characterized in that: The top side of the nitrogen preparation tank (1) is connected to a nitrogen delivery pipe (2), a fixing cylinder (3) and a connecting frame (4) are respectively arranged on the nitrogen delivery pipe (2), a cleaning component (5) is arranged inside the fixing cylinder (3), and a filtering cleaning component (7) and a collecting component (8) are respectively arranged inside the connecting frame (4); The cleaning assembly (5) comprises a connecting plate (503) and a stopper (504), a connecting frame (505) is arranged below the stopper (504), a first groove (506) is arranged inside the connecting frame (505), the bottom of the connecting frame (505) extends to the inside of the nitrogen delivery pipe (2) and is fixedly connected to a fixing frame (507), a first spring (508) is fixedly connected to the top side of the fixing frame (507), a flat plate (509) is fixedly connected to the bottom of the first spring (508), a convex block (510) is fixedly connected to the top of the flat plate (509), and the top of the convex block (510) extends to the first groove. (506), a vertical plate (511) is connected to one side below the flat plate (509), a conical block (512) is fixedly connected to one side of the vertical plate (511), a connecting frame (513) is arranged below the conical block (512), a roller (514) is rotatably connected to one side of the connecting frame (513), a sliding plate (515) is fixedly connected to the other side of the connecting frame (513), a second spring (516) is fixedly connected to the other side of the sliding plate (515), the second spring (516) is fixedly connected to the inner wall of the fixed frame (507) on the other side, and a cleaning block is arranged below the second spring (516).

2. A nitrogen purity detection device suitable for nitrogen production according to claim 1, characterized in that: A transverse plate (501) is arranged above the connecting plate (503), and an electric telescopic rod (502) is fixedly connected to the top of the transverse plate (501). One end of the output shaft of the electric telescopic rod (502) extends to the bottom of the transverse plate (501) and is fixedly connected to the top of the connecting plate (503). The transverse plate (501) is fixedly connected to the inside of the fixed cylinder (3). The bottom of the fixed cylinder (3) is fixedly connected to the outer peripheral side of the nitrogen delivery pipe (2) by screws. A first through hole is opened inside the nitrogen delivery pipe (2), and a gas sensor (6) is arranged inside the first through hole. The top of the gas sensor (6) is fixedly connected to the bottom of the fixed cylinder (3).

3. A nitrogen purity detection device suitable for nitrogen production according to claim 2, characterized in that: The connecting frame (505) is rotatably connected to the interior of the fixed cylinder (3) and the nitrogen delivery pipe (2), and the cross section of the connecting frame (505) is set to be T-shaped. The protrusion (510) is slidably connected to the interior of the fixed frame (507) and the connecting frame (505). The roller (514) is set on the side opposite to the vertical plate (511), and the stopper (504) is set to be ring-shaped.

4. A nitrogen purity detection device suitable for nitrogen production according to claim 3, characterized in that: A first ring gear (517) is fixedly connected to the outer peripheral side of the connection frame (505); a first gear (518) is meshedly connected to the outer side of the first ring gear (517); the first gear (518) is arranged on a side relative to the connection frame (4); a rotating shaft (519) is fixedly connected to the inside of the first gear (518); the rotating shaft (519) is rotatably connected to the inside of the fixed cylinder (3); a driving motor (520) is fixedly connected to the top of the rotating shaft (519); a fixing frame is fixedly connected to the top of the driving motor (520); and one side of the fixing frame is fixedly connected to the inner wall of the fixed cylinder (3).

5. A nitrogen purity detection device suitable for nitrogen production according to claim 4, characterized in that: The filter cleaning assembly (7) comprises a connecting shaft (701), the connecting shaft (701) is rotatably connected to the inside of the connecting frame (4), the inner circumference of the connecting frame (4) is fixedly connected to the outer wall of the nitrogen delivery pipe (2), one end of the connecting shaft (701) extends to the inside of the fixed cylinder (3) and is fixedly connected to a first cone wheel (702), one side of the top of the first cone wheel (702) is meshedly connected to a second cone wheel (703), and the second cone wheel (703) is fixedly connected to the inside of the rotating shaft (519).

6. A nitrogen purity detection device suitable for nitrogen production according to claim 5, characterized in that: A second gear (704) is fixedly connected to the side of the connecting shaft (701) away from the first cone gear (702); a second ring gear (705) is meshedly connected to the bottom of the second gear (704); an annular block (706) is fixedly connected to the inner circumference of the second ring gear (705); the other side of the annular block (706) extends to the inside of the nitrogen delivery pipe (2) and is fixedly connected to a connecting block (707); a cleaning brush (708) is fixedly connected to one side of the connecting block (707); a filter screen (709) is provided on the other side of the cleaning brush (708); the filter screen (709) is fixedly connected to the inside of the nitrogen delivery pipe (2); the annular block (706) and the second ring gear (705) are rotatably sealed inside the connecting frame (4) and the nitrogen delivery pipe (2).

7. A nitrogen purity detection device suitable for nitrogen production according to claim 6, characterized in that: The collecting assembly (8) comprises a cam (801), the cam (801) being fixedly connected to the outer peripheral side of the connecting shaft (701), and a slide plate (802) being arranged on the top of the cam (801), an air bag (803) being fixedly connected to the top of the slide plate (802), third springs (804) being arranged on both sides of the air bag (803), and the two sides of the third spring (804) being fixedly connected to the slide plate (802) and the inner wall of the connecting frame (4), respectively.

8. A nitrogen purity detection device suitable for nitrogen production according to claim 7, characterized in that: One side of the air bag (803) is connected to an air intake pipe (805), and the other end of the air intake pipe (805) is connected to a mounting frame (806). The inner circumference of the mounting frame (806) is fixedly connected to the inner wall of the connecting frame (4). The cross section of the mounting frame (806) is provided with a ring shape. One side of the interior of the mounting frame (806) is rotatably connected to a ring frame (807), and the other end of the ring frame (807) is fixedly connected to the second ring gear (705).

9. A nitrogen purity detection device suitable for nitrogen production according to claim 8, characterized in that: One side of the annular frame (807) is connected to a second cavity, which is located inside the second annular gear (705); one side of the second cavity is connected to a first cavity (808), which is arranged inside the annular block (706); the other end of the first cavity (808) is connected to a third cavity, which is located inside the connecting block (707); one side of the third cavity is connected to an air suction port, which is arranged inside the connecting block (707), and is arranged on the side relative to the filter screen (709).

10. A nitrogen purity detection device suitable for nitrogen production according to claim 9, characterized in that: The other side of the air bag (803) is connected to an air outlet pipe, and both the air inlet pipe (805) and the air outlet pipe are provided with a one-way valve. The other end of the air outlet pipe is connected to a collection frame (809), and a filter plate is provided on the bottom side of the collection frame (809), and a reflux pipe (810) is provided below the filter plate. The top end of the reflux pipe (810) is connected to the bottom of the collection frame (809), and the bottom end of the reflux pipe (810) extends to the inside of the nitrogen delivery pipe (2), and a one-way valve is provided on the reflux pipe (810).

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