A nitrogen quality control device at the outlet of a nitrogen generator

Abstract

The present invention discloses a nitrogen quality control device at the outlet end of a nitrogen generator, which relates to the technical field of gas quality control devices, and comprises a nitrogen generator unit base and a quality detection device base. The top outer wall of the nitrogen generator unit base is evenly provided with nitrogen generators, and the top left outer wall of the nitrogen generator unit base is fixedly installed with a control box. The present invention releases the nitrogen in the nitrogen generator by opening a solenoid valve 1, thereby allowing the nitrogen to enter a first detection tank through an air inlet pipe, and uses a thermal conductivity meter probe to detect the thermal conductivity of the nitrogen to deduce the purity of the nitrogen. Then, by starting a solenoid valve 2, the nitrogen is allowed to enter a second detection tank through a secondary delivery pipe, and a spectrometer detector is used to measure the molecular vibration energy absorption in the nitrogen to determine the purity. After the nitrogen is qualified, the solenoid valve 4 can be opened to discharge the qualified nitrogen from the outlet pipe for use, thereby achieving the effect of being able to detect the nitrogen during production, so that only qualified nitrogen can be discharged, thereby improving the quality of the nitrogen.

Description

Technical Field

[0001] The present invention relates to the technical field of gas quality control devices, and in particular to a nitrogen quality control device at an outlet end of a nitrogen generator. Background Art

[0002] The main purpose of a nitrogen generator is to separate oxygen and nitrogen from the air, thereby producing high-purity nitrogen. This separation primarily exploits the differences in the physical properties of nitrogen and oxygen in the air. Using high-quality imported carbon molecular sieve (CMS) as the adsorbent, this process utilizes pressure swing adsorption (PSA) at room temperature to separate air and produce high-purity nitrogen. Two adsorption towers are typically connected in parallel, with an imported PLC-controlled pneumatic valve operating automatically. These towers alternate between pressurized adsorption and decompressed regeneration to separate nitrogen and oxygen, producing the required high-purity nitrogen. These generators are widely used in a variety of industries, including the chemical industry, which requires large quantities of nitrogen for chemical production, such as the production of ammonia, methanol, and styrene. The manufacturing processes of these substances require a protective atmosphere and a safe production environment. The metallurgical industry, which requires high-purity nitrogen as an inert gas to protect metal materials in furnaces from oxidation and corrosion, also uses it for heat treatment of metal materials. The electronics industry, which has extremely high requirements for air purity, requires nitrogen generators to provide high-purity nitrogen for use in semiconductor material manufacturing and electronic component packaging.

[0003] The existing technology has the following problems: because the purity of the nitrogen output by the existing nitrogen generator fluctuates and is not constant, the purity of the output nitrogen fluctuates under the influence of different factors. The nitrogen generator cannot cope with the situation of insufficient nitrogen purity at any time, resulting in the output nitrogen purity sometimes being lower than the standard value and being unable to be used. In addition, the existing nitrogen generator can only release the nitrogen that has been discharged and does not meet the purity standard, resulting in great waste and affecting the nitrogen production efficiency. Summary of the Invention

[0004] The present invention provides a nitrogen quality control device at the outlet of a nitrogen generator to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A nitrogen quality control device for the outlet end of a nitrogen generator, comprising a nitrogen generator unit base and a quality detection device base, wherein the top outer wall of the nitrogen generator unit base is evenly provided with a nitrogen generator, the top left outer wall of the nitrogen generator unit base is fixedly installed with a control box, the right outer wall of the nitrogen generator is fixedly installed with an outlet pipe, the outer wall of the outlet pipe is fixedly installed with a solenoid valve 1, the top left outer wall of the quality detection device base is fixedly installed with a No. 1 detection tank, the left outer wall of the No. 1 detection tank is fixedly installed with an air inlet pipe, the left outer wall of the air inlet pipe is fixedly connected to the right outer wall of the air outlet pipe, and the top of the quality detection device base is fixedly installed with a No. 1 detection tank. A No. 2 detection tank is fixedly installed on the right outer wall, a secondary delivery pipe is fixedly installed on the upper right outer wall of the No. 1 detection tank, a return pipe is fixedly installed on the lower right outer wall of the No. 1 detection tank, an outer wall of the secondary delivery pipe is provided with a second solenoid valve, an outer wall of the return pipe is provided with a third solenoid valve, the right outer wall of the secondary delivery pipe is connected to the upper left outer wall of the No. 2 detection tank, the right outer wall of the return pipe is connected to the lower left outer wall of the No. 2 detection tank, a qualified nitrogen outlet pipe is fixedly connected to the lower right outer wall of the No. 2 detection tank, and an outer wall of the qualified nitrogen outlet pipe is provided with a fourth solenoid valve.

[0007] A further improvement of the technical solution of the present invention is that a thermal conductivity meter display screen is provided on the front middle outer wall of the No. 1 detection tank, and a thermal conductivity meter probe is fixedly installed on the top inner wall of the No. 1 detection tank.

[0008] A further improvement of the technical solution of the present invention is that: a partition is fixedly installed on the middle inner wall of the No. 1 detection tank, a motor is fixedly installed on the bottom middle outer wall of the partition, a screw is fixedly installed on the outer wall of the output shaft of the motor, a movable plate is movably installed on the outer wall of the screw, and connecting rods are fixedly installed on the top outer walls on the left and right sides of the movable plate.

[0009] A further improvement of the technical solution of the present invention is that a plug plate is fixedly mounted on the top outer wall of the connecting rod, and a clamping plate is fixedly mounted on the bottom outer walls on both the left and right sides of the plug plate.

[0010] A further improvement of the technical solution of the present invention is that a cardboard sealing gasket is fixedly installed on the outer wall of the cardboard, the outer wall of the cardboard sealing gasket is clamped with the inner walls of the left and right holes of the partition, and the input end of the motor is electrically connected to the output end of the thermal conductivity meter probe.

[0011] A further improvement of the technical solution of the present invention is that: an exhaust pump housing is fixedly installed on the lower front outer wall of the No. 1 detection tank, an exhaust pump is fixedly installed in the inner cavity of the exhaust pump housing, the input end of the exhaust pump is through-connected with the lower front inner wall of the No. 1 detection tank, and the output end of the exhaust pump is fixedly connected with a nitrogen generator connecting pipe, and the top outer wall of the nitrogen generator connecting pipe is through-connected with the lower outer wall of the nitrogen generator.

[0012] A further improvement of the technical solution of the present invention is that: an infrared spectrometer display screen is provided on the top front outer wall of the No. 2 detection tank, a spectrometer detector is provided on the top inner wall of the No. 2 detection tank, a supercharger is fixedly installed on the bottom inner cavity of the No. 2 detection tank, and the output end of the supercharger is through-connected with the bottom inner wall of the No. 2 detection tank.

[0013] A further improvement of the technical solution of the present invention is that a lifting motor is fixedly installed on the outer wall of the middle top of the base of the quality inspection device, the outer wall of the output shaft of the lifting motor passes through the top inner wall of the base of the quality inspection device, and a threaded rod is fixedly installed on the outer wall of the top end of the output shaft of the lifting motor.

[0014] A further improvement of the technical solution of the present invention is that a lifting plate is movably installed on the outer wall of the threaded rod, a limiting rod is fixedly installed between the upper and lower inner walls on the left and right sides of the base of the quality inspection device, the outer wall of the limiting rod is slidably connected to the inner walls of the holes on the left and right sides of the lifting plate, and roller shells are fixedly installed on the lower outer walls on the left and right sides of the lifting plate.

[0015] A further improvement of the technical solution of the present invention is that: a buffer spring is fixedly installed on the top inner wall of the roller shell, a roller bracket is fixedly installed on the bottom outer wall of the buffer spring, a roller is movably installed between the bottom outer walls of the roller bracket, a damper is fixedly connected between the top outer wall of the roller bracket and the top inner wall of the roller shell, and the damper is located on the inner side of the buffer spring.

[0016] Due to the adoption of the above technical solution, the present invention has the following technical advancements compared to the prior art:

[0017] The present invention provides a nitrogen quality control device at the outlet end of a nitrogen generator. The device adopts the cooperation of a nitrogen generator, an outlet pipe, a first solenoid valve, a first detection tank, an air inlet pipe, a thermal conductivity meter display screen, a thermal conductivity meter probe, a secondary delivery pipe, a second solenoid valve, a second detection tank, a qualified nitrogen outlet pipe, a fourth solenoid valve, an infrared spectrometer display screen, and a spectrometer detector. The nitrogen in the nitrogen generator is released by opening the first solenoid valve, so that the nitrogen enters the first detection tank through the air inlet pipe. The thermal conductivity of the nitrogen is detected by the thermal conductivity meter probe. The thermal conductivity of the nitrogen increases with the increase of the purity of the gas, so that the purity of the nitrogen is calculated and displayed on the thermal conductivity meter display screen. Then, the nitrogen is allowed to enter the second delivery pipe through the second delivery pipe by starting the second solenoid valve. Enter the No. 2 detection tank, use the spectrometer detector to measure the molecular vibration energy absorption in the nitrogen to determine the purity, and display it on the infrared spectrometer screen, so as to improve the accuracy. After passing the test, the solenoid valve four can be opened, and the qualified nitrogen can be discharged from the outlet pipe for use. This solves the problem that the purity of the nitrogen output by the existing nitrogen generator fluctuates and is not constant. Under the influence of different factors, the purity of the output nitrogen fluctuates. The nitrogen generator cannot cope with the situation of insufficient nitrogen purity at any time, resulting in the output nitrogen purity sometimes being lower than the standard value and cannot be used. The nitrogen can be tested during production, so that qualified nitrogen can be discharged, thereby improving the quality of nitrogen.

[0018] The present invention provides a nitrogen quality control device at an outlet end of a nitrogen generator. The device adopts the cooperation of an exhaust pump housing, an exhaust pump, a nitrogen generator connecting pipe, a partition, a motor, a screw rod, a movable plate, a connecting rod, a plug plate, and a clamping plate. When the nitrogen is unqualified during detection in a No. 1 detection tank, the motor is started to drive the screw rod to rotate, so that the movable plate drives the plug plate to rise by using the connecting rod, so that the clamping plate is separated from the partition hole. At the same time, a second electromagnetic valve closes a secondary delivery pipe, so that unqualified nitrogen can enter the lower layer of the No. 1 detection tank. The unqualified nitrogen is re-discharged into the nitrogen generator for reprocessing through the connection between the exhaust pump and the nitrogen generator connecting pipe. The problem that the existing nitrogen generator can only release the discharged nitrogen with substandard purity, thereby causing great waste and affecting the nitrogen production efficiency is solved, and the unqualified nitrogen can be reprocessed, thereby improving the purity and reducing the waste.

[0019] The present invention provides a nitrogen quality control device at the outlet end of a nitrogen generator. The device adopts the cooperation of a reflux pipe, a third solenoid valve and a supercharger. When a No. 2 detection tank detects that the nitrogen purity is unqualified, the secondary delivery pipe and the qualified nitrogen outlet pipe are closed, and the supercharger is started to open the third solenoid valve, so that the unqualified nitrogen is discharged from the reflux pipe into the lower layer of the No. 1 detection tank, and is discharged into the nitrogen generator again through an exhaust pump, thereby achieving the effect of secondary recovery and more accurate recovery of unqualified nitrogen.

[0020] The present invention provides a nitrogen quality control device at the outlet end of a nitrogen generator. The device adopts the cooperation of a quality detection device base, a lifting motor, a threaded rod, a lifting plate, a roller housing, a buffer spring, a roller bracket, a roller, a damper, and a limit rod. The device can be disassembled between an air outlet pipe and an air inlet pipe, as well as between an output end of an exhaust pump and a connecting pipe of the nitrogen generator. The lifting motor can be used to drive the threaded rod to rotate the overall quality detection device base, so that the lifting plate is moved downward by the limit rod, and the roller in the roller housing is passed through a hole in the bottom of the quality detection device base and contacts the ground, so that the device can be pushed. During the movement, the buffer spring and the damper are used to squeeze the roller bracket, so that the movement of the quality detection device base is more stable, thereby achieving the effect of facilitating the transportation and transfer of a No. 1 detection tank and a No. 2 detection tank, thereby saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a front view schematic diagram of the detection tank of the structure of the present invention;

[0023] Figure 3 This is a front cross-sectional schematic diagram of a No. 1 detection tank of the structure of the present invention;

[0024] Figure 4 A schematic cross-sectional view of a card board structure of the present invention;

[0025] Figure 5 A schematic side cross-sectional view of an exhaust pump housing of the present invention;

[0026] Figure 6 This is a schematic diagram of the No. 2 detection tank of the present invention;

[0027] Figure 7 It is a front cross-sectional schematic diagram of the base of the quality inspection device of the structure of the present invention;

[0028] Figure 8 This is a front cross-sectional schematic diagram of the roller housing of the structure of the present invention.

[0029] Figure: 1. Nitrogen generator base; 2. Control box; 3. Nitrogen generator; 31. Exhaust pipe; 311. Solenoid valve 1; 4. Quality inspection device base; 41. Lifting motor; 411. Threaded rod; 412. Lifting plate; 42. Roller housing; 421. Buffer spring; 422. Roller bracket; 423. Roller; 424. Damper; 43. Limit rod; 5. No. 1 test tank; 51. Inlet pipe; 52. Thermal conductivity meter display; 521. Thermal conductivity meter probe; 53. Exhaust pump housing; 5 31. Exhaust pump; 532. Nitrogen generator connecting pipe; 54. Secondary delivery pipe; 541. Solenoid valve 2; 55. Reflux pipe; 551. Solenoid valve 3; 56. Partition; 561. Motor; 562. Screw; 563. Moving plate; 564. Connecting rod; 565. Plug plate; 57. Card plate; 571. Card plate sealing gasket; 6. No. 2 test tank; 61. Qualified nitrogen outlet pipe; 611. Solenoid valve 4; 62. Infrared spectrometer display; 621. Spectrometer detector; 63. Supercharger. DETAILED DESCRIPTION

[0030] The present invention is described in further detail below in conjunction with the embodiments: Example 1

[0031] like Figure 1-8 As shown, the present invention provides a nitrogen quality control device at the outlet end of a nitrogen generator, comprising a nitrogen generator unit base 1 and a quality detection device base 4. The top outer wall of the nitrogen generator unit base 1 is evenly provided with a nitrogen generator 3, the top left outer wall of the nitrogen generator unit base 1 is fixedly installed with a control box 2, the right outer wall of the nitrogen generator 3 is fixedly installed with an outlet pipe 31, the outer wall of the outlet pipe 31 is fixedly installed with a solenoid valve 311, the top left outer wall of the quality detection device base 4 is fixedly installed with a No. 1 detection tank 5, the left outer wall of the No. 1 detection tank 5 is fixedly installed with an air inlet pipe 51, the left outer wall of the air inlet pipe 51 is fixedly connected to the right outer wall of the air outlet pipe 31, and the top of the quality detection device base 4 is fixedly installed with a No. 1 detection tank 5. The No. 2 detection tank 6 is fixedly installed on the right outer wall, the secondary delivery pipe 54 is fixedly installed on the upper right outer wall of the No. 1 detection tank 5, the return pipe 55 is fixedly installed on the lower right outer wall of the No. 1 detection tank 5, the outer wall of the secondary delivery pipe 54 is provided with a second solenoid valve 541, the outer wall of the return pipe 55 is provided with a third solenoid valve 551, the right outer wall of the secondary delivery pipe 54 is connected to the upper left outer wall of the No. 2 detection tank 6, the right outer wall of the return pipe 55 is connected to the lower left outer wall of the No. 2 detection tank 6, the lower right outer wall of the No. 2 detection tank 6 is fixedly connected with a qualified nitrogen outlet pipe 61, and the outer wall of the qualified nitrogen outlet pipe 61 is provided with a fourth solenoid valve 61.

[0032] In this embodiment, the nitrogen generator 3 is started by the control box 2, and the nitrogen in the nitrogen generator 3 is released by opening the electromagnetic valve 1 311 on the outer wall of the outlet pipe 31, so that the nitrogen enters the No. 1 detection tank 5 through the air inlet pipe 51. The thermal conductivity of the nitrogen is detected by the thermal conductivity meter probe 521. The value increases with the increase of the gas purity, so that the purity of the nitrogen is calculated and displayed on the thermal conductivity meter display screen 52. Then, the electromagnetic valve 2 541 is started to allow the nitrogen to enter the No. 2 detection tank 6 through the secondary delivery pipe 54. The spectrometer detector 621 is used to measure the molecular vibration energy absorption in the nitrogen to determine the purity, and it is displayed on the infrared spectrometer display screen 62, so as to improve the detection accuracy. After passing the test, the electromagnetic valve 4 611 can be opened and the nitrogen can be discharged from the qualified nitrogen outlet pipe 61 for use. Example 2

[0033] like Figure 1-8 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a thermal conductivity meter display screen 52 is provided on the front middle end outer wall of the No. 1 detection tank 5, a thermal conductivity meter probe 521 is fixedly installed on the top inner wall of the No. 1 detection tank 5, a partition 56 is fixedly installed on the middle end inner wall of the No. 1 detection tank 5, a motor 561 is fixedly installed on the bottom middle end outer wall of the partition 56, a screw rod 562 is fixedly installed on the outer wall of the output shaft of the motor 561, a movable plate 563 is movably installed on the outer wall of the screw rod 562, a connecting rod 564 is fixedly installed on the top outer wall of the left and right sides of the movable plate 563, a plug plate 565 is fixedly installed on the top outer wall of the connecting rod 564, and the plug plate 565 is fixedly installed on the left and right sides of the plug plate 565. The outer walls of the side bottoms are fixedly installed with card plates 57, and the outer walls of the card plates 57 are fixedly installed with card plate sealing gaskets 571. The outer walls of the card plate sealing gaskets 571 are clamped with the inner walls of the left and right holes of the partition 56. The input end of the motor 561 is electrically connected to the output end of the thermal conductivity meter probe 521. The exhaust pump housing 53 is fixedly installed on the outer wall of the front lower side of the No. 1 detection tank 5. The inner cavity of the exhaust pump housing 53 is fixedly installed with an exhaust pump 531. The input end of the exhaust pump 531 is connected to the inner wall of the front lower side of the No. 1 detection tank 5. The output end of the exhaust pump 531 is fixedly connected to the nitrogen generator connecting pipe 532. The top outer wall of the nitrogen generator connecting pipe 532 is connected to the lower outer wall of the nitrogen generator 3.

[0034] In this embodiment, when the No. 1 detection tank 5 detects that the nitrogen is unqualified using the thermal conductivity meter probe 521, the motor 561 will be started to drive the screw 562 to rotate, so that the movable plate 563 uses the connecting rod 564 to drive the plug plate 565 to rise, so that the card plate 57 is separated from the hole of the partition 56. At the same time, the solenoid valve 2 541 will close the secondary delivery pipe 54, and the unqualified nitrogen can enter the lower layer of the No. 1 detection tank 5, and through the connection between the exhaust pump 531 and the nitrogen generator connecting pipe 532, the unqualified nitrogen will be discharged back into the nitrogen generator 3 for reprocessing. Example 3

[0035] like Figure 1-8 As shown, based on Example 1, the present invention provides a technical solution: preferably, an infrared spectrometer display screen 62 is provided on the top front outer wall of the No. 2 detection tank 6, a spectrometer detector 621 is provided on the top inner wall of the No. 2 detection tank 6, and a booster 63 is fixedly installed on the bottom inner cavity of the No. 2 detection tank 6, and the output end of the booster 63 is through-connected with the bottom inner wall of the No. 2 detection tank 6.

[0036] In this embodiment, when the No. 2 detection tank 6 detects that the nitrogen purity is unqualified using the spectrometer detector 621, the secondary delivery pipe 54 and the qualified nitrogen outlet pipe 61 will be closed, and the supercharger 63 will be started to open the solenoid valve three 551, and the unqualified nitrogen will be discharged from the reflux pipe 55 into the lower layer of the No. 1 detection tank 5, and then discharged into the nitrogen generator 3 again through the exhaust pump 531. Example 4

[0037] like Figure 1-8 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a lifting motor 41 is fixedly installed on the outer wall of the middle top of the quality inspection device base 4, and the outer wall of the output shaft of the lifting motor 41 passes through the top inner wall of the quality inspection device base 4, and a threaded rod 411 is fixedly installed on the outer wall of the top of the output shaft of the lifting motor 41, and a lifting plate 412 is movably installed on the outer wall of the threaded rod 411. A limiting rod 43 is fixedly installed between the upper and lower inner walls on the left and right sides of the quality inspection device base 4, and the outer wall of the limiting rod 43 is connected to the lifting plate 412. The inner walls of the holes on the left and right sides of the plate 412 are slidingly connected, and the outer walls below the left and right sides of the lifting plate 412 are fixedly installed with roller shells 42, and the top inner wall of the roller shell 42 is fixedly installed with a buffer spring 421, and the bottom outer wall of the buffer spring 421 is fixedly installed with a roller bracket 422, and a roller 423 is movably installed between the bottom outer walls of the roller bracket 422, and a damper 424 is fixedly connected between the top outer wall of the roller bracket 422 and the top inner wall of the roller shell 42, and the damper 424 is located on the inner side of the buffer spring 421.

[0038] In this embodiment, the air outlet pipe 31 and the air inlet pipe 51, as well as the exhaust pump 531 output end and the nitrogen generator connecting pipe 532 can be disassembled, so that the overall quality inspection device base 4 can use the lifting motor 41 to drive the threaded rod 411 to rotate, so that the lifting plate 412 moves downward using the limit rod 43, so that the roller 423 in the roller housing 42 passes through the bottom hole of the quality inspection device base 4 and contacts the ground, and can be pushed. During movement, the buffer spring 421 and the damper 424 are used to squeeze the roller bracket 422, so that the movement of the quality inspection device base 4 is more stable.

[0039] The following is a detailed description of the working principle of the nitrogen quality control device at the outlet of the nitrogen generator.

[0040] like Figure 1-8 As shown, the nitrogen generator 3 is started by the control box 2, and the nitrogen in the nitrogen generator 3 is released by opening the electromagnetic valve 1 311 on the outer wall of the outlet pipe 31, so that the nitrogen enters the first detection tank 5 through the air inlet pipe 51. The thermal conductivity of the nitrogen is detected by the thermal conductivity meter probe 521. The value increases with the increase of gas purity, so that the purity of the nitrogen is calculated and displayed on the thermal conductivity meter display 52. ​​Then, the electromagnetic valve 2 541 is activated to allow the nitrogen to enter the second detection tank 6 through the secondary delivery pipe 54, and the spectrometer detector 62 is used to detect the thermal conductivity of the nitrogen. 1 measures the molecular vibration energy absorption in nitrogen to determine the purity and displays it on the infrared spectrometer display screen 62, thereby improving the detection accuracy. If the nitrogen is qualified, the electromagnetic valve 4 611 can be opened and the qualified nitrogen can be discharged from the outlet pipe 61 for use. When the nitrogen in the first detection tank 5 is unqualified, the motor 561 will be started to drive the screw 562 to rotate, so that the movable plate 563 uses the connecting rod 564 to drive the plug plate 565 to rise, so that the card plate 57 is separated from the hole of the partition 56. At the same time, the electromagnetic valve 2 541 will close the secondary delivery pipe 54, and no Qualified nitrogen can enter the lower layer of the No. 1 detection tank 5, and through the connection of the exhaust pump 531 and the nitrogen generator connecting pipe 532, the unqualified nitrogen is discharged back into the nitrogen generator 3 for reprocessing. When the No. 2 detection tank 6 detects that the nitrogen purity is unqualified, it will close the secondary delivery pipe 54 and the qualified nitrogen outlet pipe 61, and start the supercharger 63 to open the electromagnetic valve 3 551, and discharge the unqualified nitrogen from the reflux pipe 55 into the lower layer of the No. 1 detection tank 5, and then discharge it into the nitrogen generator 3 again through the exhaust pump 531. , and the output end of the exhaust pump 531 and the nitrogen generator connecting pipe 532 can be disassembled, so that the overall quality inspection device base 4 can use the lifting motor 41 to drive the threaded rod 411 to rotate, so that the lifting plate 412 moves downward using the limit rod 43, so that the roller 423 in the roller housing 42 passes through the bottom hole of the quality inspection device base 4 and contacts the ground, and can be pushed. When moving, the buffer spring 421 and the damper 424 are used to squeeze the roller bracket 422, so that the movement of the quality inspection device base 4 is more stable.

[0041] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A nitrogen quality control device at the outlet of a nitrogen generator, comprising a nitrogen generator unit base (1) and a quality detection device base (4), characterized in that: The top outer wall of the nitrogen generator unit base (1) is evenly provided with a nitrogen generator (3), the top left outer wall of the nitrogen generator unit base (1) is fixedly installed with a control box (2), the right outer wall of the nitrogen generator (3) is fixedly installed with an outlet pipe (31), the outer wall of the outlet pipe (31) is fixedly installed with a solenoid valve (311), the top left outer wall of the quality detection device base (4) is fixedly installed with a No. 1 detection tank (5), the left outer wall of the No. 1 detection tank (5) is fixedly installed with an air inlet pipe (51), the left outer wall of the air inlet pipe (51) is fixedly connected to the right outer wall of the air outlet pipe (31), the top right outer wall of the quality detection device base (4) is fixedly installed with a No. 2 detection tank (6), ... A secondary delivery pipe (54) is fixedly installed on the upper right outer wall of the test tank (5), a return pipe (55) is fixedly installed on the lower right outer wall of the No. 1 test tank (5), the outer wall of the secondary delivery pipe (54) is provided with a second solenoid valve (541), the outer wall of the return pipe (55) is provided with a third solenoid valve (551), the right outer wall of the secondary delivery pipe (54) is connected to the upper left outer wall of the No. 2 test tank (6), the right outer wall of the return pipe (55) is connected to the lower left outer wall of the No. 2 test tank (6), the lower right outer wall of the No. 2 test tank (6) is fixedly connected to a qualified nitrogen outlet pipe (61), the outer wall of the qualified nitrogen outlet pipe (61) is provided with a fourth solenoid valve (611) ), a thermal conductivity meter display screen (52) is provided on the front middle outer wall of the No. 1 detection tank (5), a thermal conductivity meter probe (521) is fixedly installed on the top inner wall of the No. 1 detection tank (5), a partition (56) is fixedly installed on the middle inner wall of the No. 1 detection tank (5), a motor (561) is fixedly installed on the bottom middle outer wall of the partition (56), a screw rod (562) is fixedly installed on the outer wall of the output shaft of the motor (561), a movable plate (563) is movably installed on the outer wall of the screw rod (562), a connecting rod (564) is fixedly installed on the left and right top outer walls of the movable plate (563), a plug plate (565) is fixedly installed on the top outer wall of the connecting rod (564), and the plug plate (565) is fixedly installed on the outer wall of the plug plate (565). The bottom outer walls on both sides are fixedly mounted with a card plate (57), the front lower outer wall of the No. 1 detection tank (5) is fixedly mounted with an exhaust pump housing (53), the inner cavity of the exhaust pump housing (53) is fixedly mounted with an exhaust pump (531), the input end of the exhaust pump (531) is connected to the front lower inner wall of the No. 1 detection tank (5), the output end of the exhaust pump (531) is fixedly connected to a nitrogen generator connecting pipe (532), the top outer wall of the nitrogen generator connecting pipe (532) is connected to the lower outer wall of the nitrogen generator (3), the top front outer wall of the No. 2 detection tank (6) is provided with an infrared spectrometer display screen (62), and the top inner wall of the No. 2 detection tank (6) is provided with a spectrometer detector (621).A booster (63) is fixedly mounted on the bottom inner cavity of the second detection tank (6), and the output end of the booster (63) is connected to the bottom inner wall of the second detection tank (6).

2. A nitrogen quality control device at the outlet of a nitrogen generator according to claim 1, characterized in that: A cardboard sealing gasket (571) is fixedly mounted on the outer wall of the cardboard (57), and the outer wall of the cardboard sealing gasket (571) is engaged with the inner walls of the left and right holes of the partition (56), and the input end of the motor (561) is electrically connected to the output end of the thermal conductivity meter probe (521).

3. The nitrogen quality control device at the outlet of a nitrogen generator according to claim 1, characterized in that: A lifting motor (41) is fixedly mounted on the outer wall of the middle top of the quality inspection device base (4); the outer wall of the output shaft of the lifting motor (41) passes through the inner wall of the top of the quality inspection device base (4); and a threaded rod (411) is fixedly mounted on the outer wall of the top end of the output shaft of the lifting motor (41).

4. The nitrogen quality control device at the outlet of a nitrogen generator according to claim 3, characterized in that: A lifting plate (412) is movably mounted on the outer wall of the threaded rod (411), and a limiting rod (43) is fixedly mounted between the upper and lower inner walls on the left and right sides of the base (4) of the quality inspection device. The outer wall of the limiting rod (43) is slidably connected to the inner walls of the left and right holes of the lifting plate (412), and a roller housing (42) is fixedly mounted on the lower outer walls of the left and right sides of the lifting plate (412).

5. The nitrogen quality control device at the outlet of a nitrogen generator according to claim 4, characterized in that: A buffer spring (421) is fixedly mounted on the top inner wall of the roller housing (42), a roller bracket (422) is fixedly mounted on the bottom outer wall of the buffer spring (421), a roller (423) is movably mounted between the bottom outer walls of the roller bracket (422), a damper (424) is fixedly connected between the top outer wall of the roller bracket (422) and the top inner wall of the roller housing (42), and the damper (424) is located on the inner side of the buffer spring (421).

Images