Air separation instrument capable of adjusting air source

Abstract

The invention discloses an air separation instrument capable of adjusting an air source, and relates to the field of air separation instruments. The air supply device comprises an air supply assembly and air separation instrument air source pipes, the air supply assembly comprises an air inlet part and a connecting part, the air inlet part is installed on the outer side face of the connecting part, the air inlet part and the connecting part are integrally formed, the air inlet part is communicated with the interior of the connecting part, and the air separation instrument air source pipes are installed at the two ends of the connecting part. The air separation instrument air source pipe is fixedly connected with the connecting part in a sealed mode, a flow guide air seat is installed on the head portion of the air inlet part, and the flow guide air seat is fixedly connected with the air inlet part in a sealed mode. The air supply assembly is designed to be of a structure that the air inlet part and the connecting part are matched with each other, so that the air supply assembly can be easily matched with two groups of air separation instrument air source pipes during use, and a flow guide air seat and a flow division air supply group are mounted on the air supply assembly; in this way, after the split-flow air supply set is connected with an external air source, air can be stably supplied to the air source pipe of the air separation instrument.

Description

Technical Field

[0001] The present invention relates to the technical field of air separation instruments, and specifically to an air separation instrument with adjustable gas source. Background Technique

[0002] During the use of air separation instruments, air separation instrument gas is required as a stable gas source to ensure that instrument sensors, control valves, and instrument equipment can accurately measure and reliably control. The gas source of the instrument gas comes from the dry air after the air separation device sucks air from the atmosphere through an air compressor, cools it in a precooling system and molecular sieve, and removes impurities such as moisture, carbon dioxide, and hydrocarbons.

[0003] The existing Chinese patent with the publication number CN204240705U discloses a low-energy consumption air separation integral heating device, including a nitrogen gas source, a pressure regulating valve, an air separation air inlet main pipe, and an air separation instrument gas source pipe. The nitrogen gas source is connected to the air separation air inlet main pipe and the air separation instrument gas source pipe respectively through a pipeline via the pressure regulating valve. A switching valve is arranged between the air separation air inlet main pipe and / or the air separation instrument gas source pipe and the pressure regulating valve.

[0004] In view of the above related technologies, it is found that the air separation instrument gas source pipe is connected to the gas source through a pressure regulating valve, but only one gas source can be used for gas supply. Not only is the gas supply method single, but also in case of problems with the gas source, the situation of gas interruption is likely to occur. Summary of the Invention

[0005] In order to achieve the effect of flexible adjustment and use of multiple gas sources, the present application provides an air separation instrument with adjustable gas source.

[0006] The present invention is realized as follows: An air separation instrument with adjustable gas source includes a gas supply assembly and an air separation instrument gas source pipe. The gas supply assembly includes an air inlet part and a connection part. The air inlet part is installed on the outer side surface of the connection part, and the air inlet part and the connection part are integrally formed. The air inlet part is internally connected to the connection part. The air separation instrument gas source pipe is installed at both ends of the connection part, and the air separation instrument gas source pipe is hermetically and fixedly connected to the connection part. A diversion gas seat is installed at the head of the air inlet part. The diversion gas seat is hermetically and fixedly connected to the air inlet part, and a flow splitting gas supply group is installed at the head of the diversion gas seat. The flow splitting gas supply group is hermetically and rotatably connected to the diversion gas seat, and an angle motor for driving the flow splitting gas supply group to rotate is also fixedly installed on the diversion gas seat. A pressing component cooperating with the diversion gas seat is also installed on the flow splitting gas supply group, and the pressing component is rotatably connected to the flow splitting gas supply group.

[0007] By adopting the above technical solutions, by designing the air supply component into two parts: an air intake part and a connecting part, it is convenient for the gas passing through the air intake part during use to be supplied to the air separation instrument gas source pipes at both ends through the connecting part. The two ends of the connecting part are hermetically and fixedly connected to the air separation instrument gas source pipes, which can ensure safer air supply between the two. By installing a diversion air seat at the head of the air intake part, after hermetically and fixedly installing the diversion air seat at the head of the air intake part, a shunt air supply group can be installed through the diversion air seat. After installing the shunt air supply group in the diversion air seat, it can be connected to the shunt air supply group through an air vent hose, facilitating the simultaneous connection of multiple air vent hoses. In this way, flexible selection of air supply can be achieved during use. At the same time, by fixedly installing an angle motor on the diversion air seat, it is convenient to drive the shunt air supply group to rotate at a fixed angle through the angle motor during use, achieving the purpose of supplying gas from different gas sources. At the same time, a pressing component that cooperates with the diversion air seat is also fixedly installed on the shunt air supply group, which can ensure good sealing connection performance between the shunt air supply group and the diversion air seat.

[0008] Further, the air separation instrument gas source pipe includes a main pipe part and a connecting disk. The connecting disk is installed at one end of the main pipe part, and the connecting disk is integrally formed with the main pipe part.

[0009] By adopting the above technical solutions, by designing the air separation instrument gas source pipe into a structure that cooperates with the main pipe part and the connecting disk, it is convenient to perform mating connection through the connecting disk when installing the air separation instrument gas source pipe.

[0010] Further, a positioning groove for installing the connecting part is provided on one side of the connecting disk, and sealing rings that cooperate with the connecting disk are installed on both sides of the connecting part.

[0011] By adopting the above technical solutions, by providing a positioning groove on one side of the connecting disk, it is convenient to stably install the connecting part of the air supply component in the positioning groove when mating with the air supply component. At the same time, by installing sealing rings on both sides of the connecting part, the sealing performance of the connection between the connecting part and the connecting disk can be ensured.

[0012] Further, a connecting ring is coaxially arranged on the outer side surface of the connecting disk. The connecting ring is integrally formed with the connecting disk, and a number of long bolts are installed on the connecting ring along the circumferential direction.

[0013] By adopting the above technical solutions, by providing a connecting ring on the outer side surface of the connecting disk, it is ensured that after two air separation instrument gas source pipes are installed at both ends of the air supply component, they can be connected to each other through long bolts, and then the air supply component can be clamped and fixed by the two air separation instrument gas source pipes, ensuring the stability and sealing performance of the connection between the air separation instrument gas source pipe and the air supply component.

[0014] Further, the diversion air seat includes a mating elbow and a positioning disc seat. The lower end of the mating elbow is sealed and installed at the head of the air inlet part, and the positioning disc seat is installed at the head of the mating elbow, and the positioning disc seat is integrally formed with the mating elbow.

[0015] By adopting the above technical solution, by designing the diversion air seat into a structure in which the mating elbow and the positioning disc seat cooperate, when in use, the mating elbow is installed at the head of the air inlet part for air supply, and at the same time, the positioning disc seat is arranged at the head of the mating elbow, which is convenient for installing and diverting the air supply group through the positioning disc seat, ensuring that the diverting air supply group can be rotated and adjusted in the positioning disc seat.

[0016] Further, the mating elbow includes an elbow part and a connecting head. The connecting head is arranged at the lower end of the elbow part, and the connecting head is integrally formed with the elbow part. The connecting head is provided with internal threads, and the head of the air inlet part is provided with external threads that cooperate with the connecting head.

[0017] By adopting the above technical solution, by designing the mating elbow into a structure in which the elbow part and the connecting head cooperate, when in use, the elbow part can be installed at the head of the air inlet part through the connecting head at the lower end. The threaded connection between the two can ensure the stability of the connection and at the same time facilitate disassembly, replacement and installation.

[0018] Further, the positioning disc seat includes a disc shell and a motor mount. A positioning hole is opened at the center of the disc shell, and air vent holes corresponding to the elbow part are also opened on the disc shell. The motor mount is fixedly installed on the rear end face of the disc shell.

[0019] By adopting the above technical solution, by designing the positioning disc seat into a structure in which the disc shell and the motor mount cooperate, the disc shell is used to ensure the stable installation of the diverting air supply group, and at the same time, the positioning hole is provided to ensure that the diverting air supply group can pass through for positioning installation. At the same time, the air vent holes are provided to facilitate air supply in cooperation with the diverting air supply group, and the motor mount is fixedly installed on the disc shell to ensure the stable installation of the angle motor.

[0020] Further, the diverting air supply group includes a sealing disc, a gas source pipe head and a central shaft. The gas source pipe heads are uniformly arranged on one side of the sealing disc along the circumferential direction. The central shaft is fixedly installed at the center of the other side of the sealing disc, and the central shaft is connected to the output end of the angle motor.

[0021] By adopting the above technical solution, by designing the diverting air supply group into a structure in which the sealing disc, the gas source pipe head and the central shaft cooperate, when in use, it is convenient to rotate and install the sealing disc in the disc shell, and at the same time, the gas source pipe heads are arranged on the sealing disc to facilitate the connection with the external air supply hose for stable air supply.

[0022] Further, the pressing component includes a guiding frame and a movable frame. The guiding frame is sleeved and installed on the central shaft, and a limiting ring for limiting the guiding frame is fixedly installed on the central shaft. The movable frame is slidably installed in the guiding frame, and a spring for supporting the movable frame is also installed in the guiding frame.

[0023] By adopting the above technical solution, by designing the pressing component into a structure in which the guiding frame and the movable frame cooperate with each other, it is ensured that the movable frame can be slidably installed through the guiding frame during use. In this way, the spring in the guiding frame can be used to push the movable frame, ensuring that the pressing component is supported between the limiting ring and the positioning disc seat, and ensuring a stable sealing connection between the sealing disc and the disc housing.

[0024] Further, the guiding frame includes a sleeve plate and a guiding tube for slidably installing the movable frame. The middle part of the sleeve plate is sleeved on the central shaft, and the guiding tube is fixedly installed at both ends of the sleeve plate. A cylindrical rod is fixedly installed at the outer end of the movable frame.

[0025] By adopting the above technical solution, by designing the guiding frame into a structure in which the sleeve plate and the guiding tube cooperate with each other, it is convenient to sleeve the sleeve plate on the central shaft during use, and then install the movable frame through the guiding tubes fixed at both ends of the sleeve plate. By fixedly installing a cylindrical rod at the outer end of the movable frame, it is convenient to support on the outer side surface of the disc housing through the cylindrical rod.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: In this application, by designing the air supply component into a structure in which the air inlet part and the connecting part cooperate with each other, it is easy to cooperate with the air supply component through two air separation instrument gas source pipes during use, and a flow guiding gas seat and a split air supply group are installed on the air supply component. In this way, after the split air supply group is connected to an external gas source, it can stably supply gas to the air separation instrument gas source pipes. At the same time, during use, the split air supply group can control the use angle through an angle motor, thereby facilitating the use of different gas sources to supply gas to the air separation instrument gas source pipes, and having the advantages of convenient use and easy adjustment of the gas source. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can be obtained based on these drawings.

[0028] Figure 1 is a perspective view of the device of the present invention; Figure 2 is Figure 1 a side view of the device shown; Figure 3 It is a three-dimensional view of the air separation instrument air source pipe in the embodiment of the present invention; Figure 4 It is a three-dimensional view of the air supply assembly in the embodiment of the present invention; Figure 5 It is a three-dimensional view of the cooperation of the diversion air seat, the shunt air supply group, the angle motor and the pressing assembly in the embodiment of the present invention; Figure 6 It is Figure 5 A three-dimensional view of the cooperation of the diversion air seat and the angle motor of the device shown; Figure 7 It is Figure 5 A three-dimensional view of the shunt air supply group of the device shown; Figure 8 It is Figure 5 An exploded structural schematic diagram of the pressing assembly of the device shown; Figure 9 It is Figure 8 A front view of the device shown.

[0029] In the figure: 1. Air supply assembly; 11. Intake part; 12. Connection part; 121. Sealing ring; 2. Air separation instrument air source pipe; 21. Main pipe part; 22. Connection disk; 221. Positioning groove; 222. Connection ring; 223. Long bolt; 3. Diversion air seat; 31. Matching elbow pipe; 311. Elbow pipe part; 312. Connection head; 32. Positioning disk seat; 321. Disk shell; 322. Motor frame; 323. Positioning hole; 324. Ventilation hole; 4. Shunt air supply group; 41. Sealing disk; 42. Air source pipe head; 43. Central shaft; 431. Limit ring; 5. Angle motor; 6. Pressing assembly; 61. Guide frame; 611. Sleeve plate; 612. Guide pipe; 62. Movable frame; 621. Cylindrical rod; 63. Spring. Detailed implementation mode

[0030] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] Embodiment 1 Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, an air separation instrument with adjustable gas source includes a gas supply assembly 1 and an air separation instrument gas source pipe 2. The gas supply assembly 1 includes an air inlet part 11 and a connection part 12. The air inlet part 11 is installed on the outer side surface of the connection part 12, and the air inlet part 11 and the connection part 12 are integrally formed. The air inlet part 11 is internally connected to the connection part 12. The air separation instrument gas source pipe 2 is installed at both ends of the connection part 12, and the air separation instrument gas source pipe 2 is hermetically and fixedly connected to the connection part 12. A diversion gas seat 3 is installed at the head of the air inlet part 11. The diversion gas seat 3 is hermetically and fixedly connected to the air inlet part 11, and a flow splitting gas supply group 4 is installed at the head of the diversion gas seat 3. The flow splitting gas supply group 4 is hermetically and rotatably connected to the diversion gas seat 3, and an angle motor 5 for driving the flow splitting gas supply group 4 to rotate is fixedly installed on the diversion gas seat 3. A pressing component 6 that cooperates with the diversion gas seat 3 is also installed on the flow splitting gas supply group 4. The pressing component 6 is rotatably connected to the flow splitting gas supply group 4. By designing the gas supply assembly 1 into two parts, namely the air inlet part 11 and the connection part 12, the gas passing through the air inlet part 11 during use can be supplied to the air separation instrument gas source pipes 2 at both ends through the connection part 12. And the two ends of the connection part 12 are hermetically and fixedly connected to the air separation instrument gas source pipes 2, which can ensure safer gas supply between the two. By installing a diversion gas seat 3 at the head of the air inlet part 11, after hermetically fixing the diversion gas seat 3 at the head of the air inlet part 11, the flow splitting gas supply group 4 can be installed through the diversion gas seat 3. After installing the flow splitting gas supply group 4 in the diversion gas seat 3, it can be connected to the flow splitting gas supply group 4 through a ventilation hose, which is convenient for multiple ventilation hoses to be connected simultaneously. In this way, during use, the gas supply can be flexibly selected. At the same time, by fixedly installing an angle motor 5 on the diversion gas seat 3, it is convenient to drive the flow splitting gas supply group 4 to rotate at a fixed angle through the angle motor 5 during use, so as to achieve the purpose of supplying gas with different gas sources. At the same time, by fixedly installing a pressing component 6 that cooperates with the diversion gas seat 3 on the flow splitting gas supply group 4, the good sealing connection performance between the flow splitting gas supply group 4 and the diversion gas seat 3 can be ensured.

[0032] Refer to Figure 1 and Figure 3As shown, the air separation instrument air source pipe 2 includes a main pipe portion 21 and a connection disc 22. The connection disc 22 is installed at one end of the main pipe portion 21, and the connection disc 22 is integrally formed with the main pipe portion 21. By designing the air separation instrument air source pipe 2 into a structure where the main pipe portion 21 and the connection disc 22 cooperate, it is convenient to perform mating connection through the connection disc 22 when installing the air separation instrument air source pipe 2. A positioning groove 221 for installing the connection portion 12 is provided on one side of the connection disc 22, and sealing rings 121 that cooperate with the connection disc 22 are installed on both sides of the connection portion 12. By providing the positioning groove 221 on one side of the connection disc 22, it is convenient to stably install the connection portion 12 of the air supply component 1 in the positioning groove 221 when mating with the air supply component 1. At the same time, by installing the sealing rings 121 on both sides of the connection portion 12, the sealing performance of the connection between the connection portion 12 and the connection disc 22 can be ensured. A connection ring 222 is coaxially provided on the outer side surface of the connection disc 22. The connection ring 222 is integrally formed with the connection disc 22, and a number of long bolts 223 are installed on the connection ring 222 along the circumferential direction. By providing the connection ring 222 on the outer side surface of the connection disc 22, it is ensured that after two air separation instrument air source pipes 2 are installed at both ends of the air supply component 1, the two air separation instrument air source pipes 2 can be connected to each other through the long bolts 223. Furthermore, the air supply component 1 can be clamped and fixed through the two air separation instrument air source pipes 2, ensuring the stability and sealing performance of the connection between the air separation instrument air source pipe 2 and the air supply component 1.

[0033] Refer to Figure 5 and Figure 6As shown in the figure, the diversion air seat 3 includes a mating elbow 31 and a positioning disc seat 32. The lower end of the mating elbow 31 is sealingly installed at the head of the air intake part 11, and the positioning disc seat 32 is installed at the head of the mating elbow 31, and the positioning disc seat 32 is integrally formed with the mating elbow 31. By designing the diversion air seat 3 into a structure where the mating elbow 31 and the positioning disc seat 32 cooperate, when in use, the mating elbow 31 is installed at the head of the air intake part 11 for air supply. At the same time, a positioning disc seat 32 is arranged at the head of the mating elbow 31, which is convenient for installing the shunt air supply group 4 through the positioning disc seat 32, ensuring that the shunt air supply group 4 can rotate and adjust in the positioning disc seat 32. The mating elbow 31 includes an elbow part 311 and a connecting head 312. The connecting head 312 is arranged at the lower end of the elbow part 311, and the connecting head 312 is integrally formed with the elbow part 311. The connecting head 312 is provided with internal threads, and the head of the air intake part 11 is provided with external threads that cooperate with the connecting head 312. By designing the mating elbow 31 into a structure where the elbow part 311 and the connecting head 312 cooperate, when in use, the elbow part 311 can be installed at the head of the air intake part 11 through the connecting head 312 at the lower end. The threaded connection between the two can ensure the stability of the connection and is convenient for disassembly, replacement, and installation. The positioning disc seat 32 includes a disc shell 321 and a motor mount 322. A positioning hole 323 is opened at the center of the disc shell 321, and a ventilation hole 324 corresponding to the elbow part 311 is also opened on the disc shell 321. The motor mount 322 is fixedly installed on the rear end face of the disc shell 321. By designing the positioning disc seat 32 into a structure where the disc shell 321 and the motor mount 322 cooperate, the disc shell 321 ensures the stable installation of the shunt air supply group 4. At the same time, the setting of the positioning hole 323 ensures that the shunt air supply group 4 can pass through for positioning and installation. At the same time, the setting of the ventilation hole 324 facilitates the air supply in cooperation with the shunt air supply group 4, and the stable installation of the angle motor 5 is ensured by fixedly installing the motor mount 322 on the disc shell 321.

[0034] Referring to Figure 5 , Figure 6 and Figure 7 As shown in the figure, the shunt air supply group 4 includes a sealing disc 41, a gas source pipe head 42, and a central shaft 43. The gas source pipe heads 42 are uniformly arranged on one side of the sealing disc 41 along the circumferential direction. The central shaft 43 is fixedly installed at the center of the other side of the sealing disc 41, and the central shaft 43 is connected to the output end of the angle motor 5. By designing the shunt air supply group 4 into a structure where the sealing disc 41, the gas source pipe head 42, and the central shaft 43 cooperate, it is convenient to rotate and install the sealing disc 41 in the disc shell 321 during use. At the same time, by arranging the gas source pipe heads 42 on the sealing disc 41, it is convenient to cooperate and connect with the external air supply hose, facilitating stable air supply.

[0035] Embodiment 2 Referring toFigure 1 , Figure 8 and Figure 9 As shown in Figure 1 , Figure 8 and Figure 9 , an air separation instrument with an adjustable gas source includes a gas supply assembly 1 and an air separation instrument gas source pipe 2. The gas supply assembly 1 includes an intake part 11 and a connection part 12. The intake part 11 is installed on the outer side of the connection part 12, and the intake part 11 and the connection part 12 are integrally formed. The intake part 11 is internally connected to the connection part 12. The air separation instrument gas source pipe 2 is installed at both ends of the connection part 12, and the air separation instrument gas source pipe 2 is hermetically and fixedly connected to the connection part 12. A diversion gas seat 3 is installed at the head of the intake part 11. The diversion gas seat 3 is hermetically and fixedly connected to the intake part 11, and a shunt gas supply group 4 is installed at the head of the diversion gas seat 3. The shunt gas supply group 4 is hermetically and rotatably connected to the diversion gas seat 3, and an angle motor 5 for driving the shunt gas supply group 4 to rotate is also fixedly installed on the diversion gas seat 3. A pressing component 6 that cooperates with the diversion gas seat 3 is also installed on the shunt gas supply group 4. The pressing component 6 is rotatably connected to the shunt gas supply group 4.

[0036] Referring to Figure 8 and Figure 9 As shown in Figure 8 and Figure 9 , the pressing component 6 includes a guiding frame 61 and a movable frame 62. The guiding frame 61 is sleeved and installed on the central shaft 43, and a limiting ring 431 for limiting the guiding frame 61 is also fixedly installed on the central shaft 43. The movable frame 62 is slidably installed in the guiding frame 61, and a spring 63 for supporting the movable frame 62 is also installed in the guiding frame 61. By designing the pressing component 6 into a structure in which the guiding frame 61 and the movable frame 62 cooperate, it is ensured that the movable frame 62 can be slidably installed through the guiding frame 61 during use. In this way, the spring 63 in the guiding frame 61 can be used to push the movable frame 62, ensuring that the pressing component 6 is supported between the limiting ring 431 and the positioning disc seat 32, and ensuring a stable sealed connection between the sealing disc 41 and the disc shell 321. The guiding frame 61 includes a sleeve plate 611 and a guiding tube 612 for the movable frame 62 to be slidably installed. The middle part of the sleeve plate 611 is sleeved on the central shaft 43, and the guiding tube 612 is fixedly installed at both ends of the sleeve plate 611. A cylindrical rod 621 is fixedly installed at the outer end of the movable frame 62. By designing the guiding frame 61 into a structure in which the sleeve plate 611 and the guiding tube 612 cooperate, it is convenient to sleeved the sleeve plate 611 on the central shaft 43 during use, and then install the movable frame 62 through the guiding tubes 612 fixed at both ends of the sleeve plate 611. By fixedly installing the cylindrical rod 621 at the outer end of the movable frame 62, it is convenient to support on the outer side surface of the disc shell 321 through the cylindrical rod 621.

[0037] For the device provided by the embodiment of the present invention, its implementation principle and the technical effects generated are the same as those of Embodiment 1. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in Embodiment 1.

[0038] Working principle: During actual use, several gas supply pipe heads 42 on the shunt gas supply group 4 can be respectively connected to different external gas supply hoses. When one of the gas supply pipe heads 42 is aligned with the ventilation hole 324 on the positioning disc seat 32, gas supply will be carried out, allowing the gas to pass through the ventilation hole 324 and enter the mating elbow 31, and then sequentially enter the air inlet part 11, the connection part 12, and the air separation instrument gas supply pipe 2 through the mating elbow 31, thus realizing stable gas supply operation. When it is necessary to switch the gas source, the angle motor 5 can be started to rotate another gas supply pipe head 42 to the position aligned with the ventilation hole 324 to replace the gas source, which is very convenient to use.

[0039] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air separation instrument with adjustable gas source, comprising a gas supply assembly (1) and an air separation instrument gas source pipe (2), characterized in that: The air supply component (1) includes an air inlet part (11) and a connection part (12). The air inlet part (11) is installed on the outer side surface of the connection part (12), and the air inlet part (11) and the connection part (12) are integrally formed. The air inlet part (11) is internally connected and communicated with the connection part (12). The air separation instrument air source pipe (2) is installed at both ends of the connection part (12), and the air separation instrument air source pipe (2) is hermetically and fixedly connected to the connection part (12). A diversion air seat (3) is installed at the head of the air inlet part (11). The diversion air seat (3) is hermetically and fixedly connected to the air inlet part (11), and a shunt air supply group (4) is installed at the head of the diversion air seat (3). The shunt air supply group (4) is hermetically and rotatably connected to the diversion air seat (3), and an angle motor (5) for driving the shunt air supply group (4) to rotate is fixedly installed on the diversion air seat (3). A pressing component (6) matching with the diversion air seat (3) is further installed on the shunt air supply group (4), and the pressing component (6) is rotatably connected to the shunt air supply group (4).

2. The adjustable air source air separation instrument according to claim 1, characterized in that, The air separation instrument air source pipe (2) includes a main pipe part (21) and a connection disc (22). The connection disc (22) is installed at one end of the main pipe part (21), and the connection disc (22) and the main pipe part (21) are integrally formed.

3. The adjustable air source air separation instrument according to claim 2, characterized in that, A positioning groove (221) for installing the connection part (12) is formed on one side of the connection disc (22), and sealing rings (121) matching with the connection disc (22) are installed on both sides of the connection part (12).

4. The adjustable air source air separation instrument according to claim 3, characterized in that, A connection ring (222) is coaxially arranged on the outer side surface of the connection disc (22). The connection ring (222) and the connection disc (22) are integrally formed, and a plurality of long bolts (223) are installed on the connection ring (222) along the circumferential direction.

5. The adjustable air source air separation instrument according to claim 4, characterized in that, The diversion air seat (3) includes a matching elbow pipe (31) and a positioning disc seat (32). The lower end of the matching elbow pipe (31) is hermetically installed at the head of the air inlet part (11). The positioning disc seat (32) is installed at the head of the matching elbow pipe (31), and the positioning disc seat (32) and the matching elbow pipe (31) are integrally formed.

6. The adjustable air source air separation instrument according to claim 5, characterized in that The matching elbow pipe (31) includes an elbow part (311) and a connection head (312). The connection head (312) is arranged at the lower end of the elbow part (311), and the connection head (312) and the elbow part (311) are integrally formed. The connection head (312) is provided with internal threads, and external threads matching with the connection head (312) are provided at the head of the air inlet part (11).

7. The adjustable air source air separation instrument according to claim 6, wherein The positioning disc seat (32) includes a disc shell (321) and a motor bracket (322). A positioning hole (323) is formed at the center of the disc shell (321), and ventilation holes (324) corresponding to the elbow part (311) are further formed on the disc shell (321). The motor bracket (322) is fixedly installed on the rear end face of the disc shell (321).

8. An air separation instrument with adjustable gas source according to claim 7, characterized in that, The shunt gas supply group (4) includes a sealing disc (41), a gas source pipe head (42) and a central shaft (43). The gas source pipe head (42) is uniformly arranged on one side of the sealing disc (41) in the circumferential direction. The central shaft (43) is fixedly installed at the center of the other side of the sealing disc (41), and the central shaft (43) is connected to the output end of the angle motor (5).

9. The adjustable air source air separation instrument according to claim 8, characterized in that, The pressing component (6) includes a guiding frame (61) and a movable frame (62). The guiding frame (61) is sleeved on the central shaft (43), and a limiting ring (431) for limiting the guiding frame (61) is also fixedly installed on the central shaft (43). The movable frame (62) is slidably installed in the guiding frame (61), and a spring (63) for supporting the movable frame (62) is also installed in the guiding frame (61).

10. An air separation instrument with adjustable gas source according to claim 9, characterized in that, The guiding frame (61) includes a sleeve plate (611) and a guiding pipe (612) for the movable frame (62) to be slidably installed. The middle part of the sleeve plate (611) is sleeved on the central shaft (43). The guiding pipe (612) is fixedly installed at both ends of the sleeve plate (611). A cylindrical rod (621) is fixedly installed at the outer end of the movable frame (62).

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