Gas dilution device

Abstract

The utility model relates to the technical field of gas dilution, and discloses a gas dilution device which comprises a workbench, a mixing mechanism is arranged on the right side of the top of the workbench, and a gas inlet mechanism is arranged on the left side of the top of the workbench. A second motor is started, so that the inert gas in the first gas tank and the diluent gas in the second gas tank are conveyed into a connecting cylinder from a second pipeline and a second pipeline respectively, and then the inert gas and the diluent gas in the connecting cylinder are conveyed into the tank body through the first pipeline under the work of the second motor; after conveying is completed, a first motor is started to enable a worm to rotate, the worm rotates to enable a worm gear to rotate, so that the worm gear drives a connecting shaft to rotate, blades rotate, and the rotation of the blades enables the tank body to be mixed with inert gas and diluent gas; and the sealing bearing can prevent the gas from leaking in the tank body, and the gas pump is started to pump out the mixed gas in the tank body.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas dilution technical field, concretely is a kind of gas dilution device. BACKGROUND

[0002] In the process of detecting gas, gas diluter is often used to dilute samples, so as to facilitate subsequent further detection and other tasks, with the continuous development of science and technology, gas diluter is also constantly updated, for example, full-automatic gas dynamic diluter equipped with electric control system, so that the operator is more convenient when using.

[0003] According to the application number 202021371124.8 a kind of gas dilution device, it includes extraction device and gas supply device, extraction device includes piston mechanism and sealing shell, piston mechanism is tightly connected with sealing shell, can realize the function of extracting gas and exhausting gas in sealing shell, sealing shell material is transparent material, while sealing shell side is engraved with scale line, facilitate user to observe the position of piston mechanism, control the amount of extracted gas, sealing shell one end is connected with barometer, facilitate user to observe the air pressure in cavity and control adjustment: gas supply device includes dilution gas tank and inert gas tank, two gas tanks tail are connected with air pressure booster, gas tank interior is slidably connected with sealing partition, air pressure booster can keep the pressure in gas tank constant, reduce the influence caused by unstable pressure to mixed concentration.

[0004] The device can exhaust mixed gas in the sealing shell, facilitate user to observe and control gas volume, and stabilize gas pressure. However, the device does not mix inert gas and dilution gas in the sealing shell, and the gas used directly is not uniform, which may lead to incomplete gas dilution, reduce the quality of gas output, and affect the subsequent use of gas. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a gas dilution device to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a gas dilution device, comprising a workbench, a mixing mechanism is arranged on the right side of the top of the workbench, and an air inlet mechanism is arranged on the left side of the top of the workbench.

[0007] The mixing mechanism comprises a first fixed rod, the first fixed rod is fixedly connected to the right side of the top of the workbench, a fixed ring is fixedly connected to the top end of the first fixed rod, a tank body is fixedly connected to the top of the fixed ring, an air pump is fixedly connected to the top of the tank body, an air inlet pipe is fixedly connected to the input end of the air pump, an air outlet pipe is fixedly connected to the output end of the air pump, a first motor is fixedly connected to the right side of the top of the workbench, a worm is fixedly connected to the output end of the first motor, a connecting shaft is rotatably connected to the right side of the top of the workbench, a paddle is fixedly connected to the top end of the connecting shaft, a worm wheel is fixedly connected to the surface of the connecting shaft close to the bottom end, a sealing bearing is arranged at the bottom of the tank body, a first pipeline is fixedly connected to the surface of the tank body, and a first check valve is fixedly connected to the surface of the first pipeline.

[0008] Preferably, a hole matched with the air inlet pipe is formed in the top of the tank body, and the air inlet pipe is fixedly connected to the hole.

[0009] Preferably, the worm is engaged with the worm wheel.

[0010] Preferably, a hole matched with the sealing bearing is formed in the bottom of the tank body, and the outer ring of the sealing bearing is fixedly connected to the hole.

[0011] Preferably, the air inlet mechanism comprises a fixed seat, the fixed seat is fixedly connected to the left side of the top of the workbench, a first gas tank is fixedly connected to the left side of the top of the fixed seat, a second pipeline is fixedly connected to the front end of the first gas tank, a second check valve is fixedly connected to the surface of the second pipeline, a second gas tank is fixedly connected to the right side of the top of the fixed seat, a third pipeline is fixedly connected to the front end of the second gas tank, a third check valve is fixedly connected to the surface of the third pipeline, a connecting barrel is fixedly connected to the top of the workbench, a fixed frame is fixedly connected to the surface of the connecting barrel close to the top, a second motor is fixedly connected to the top of the fixed frame, a screw rod is fixedly connected to the output end of the second motor, a moving frame is threadedly connected to the surface of the screw rod, a second fixed rod is fixedly connected to the bottom of the moving frame, a disc is fixedly connected to the bottom end of the second fixed rod, a sealing ring is arranged on the surface of the disc, and limit rods are arranged on the top of the moving frame in a left-right symmetrical manner.

[0012] Preferably, holes matched with the second pipeline and the third pipeline are formed in the left side surface of the connecting barrel close to the bottom, and the second pipeline and the third pipeline are fixedly connected to the corresponding holes.

[0013] Preferably, a hole matched with the output shaft of the second motor is formed in the top of the fixed frame, and the output shaft of the second motor is rotatably connected to the hole.

[0014] Preferably, the disc surface is provided with a circular groove matched with the sealing ring, and the sealing ring surface is attached to the circular groove, facilitating replacement of the sealing ring.

[0015] Preferably, the fixing frame top is provided with holes matched with the limiting rods on the left and right sides, and the limiting rods surface penetrates and is slidingly connected in the holes, and the limiting rods limit the moving frame, so that the moving frame can only move up and down with the rotation of the screw rod.

[0016] Preferably, the connecting barrel surface is provided with a hole matched with the first pipeline near the bottom, and the first pipeline surface penetrates and is fixedly connected in the hole.

[0017] Compared with the prior art, the gas dilution device has the following beneficial effects:

[0018] 1. The gas dilution device, through the mixing mechanism, the inert gas and the dilution gas are transported into the tank body through the first pipeline, after the transportation is completed, the first motor is started to make the worm rotate, the rotation of the worm makes the worm gear rotate, so that the connecting shaft is driven to rotate, and the paddle rotates, the rotation of the paddle makes the tank body and the inert gas and the dilution gas mix.

[0019] 2. The gas dilution device, through the air inlet mechanism, the second motor is started to make the screw rotate, the rotation of the screw makes the moving frame move upwards, so that the disc and the sealing ring move upwards in the connecting barrel, so that the pressure difference is formed in the connecting barrel, so that the inert gas in the first gas tank and the dilution gas in the second gas tank are transported into the connecting barrel from the second pipeline and the second pipeline respectively, and then the screw is reversely rotated by the working of the second motor again, so that the moving frame drives the disc and the sealing ring to move downwards, so that the inert gas and the dilution gas in the connecting barrel are transported into the tank body through the first pipeline, and are mixed. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor:

[0021] Figure 1 It is a three-dimensional schematic view of the structure of the present application;

[0022] Figure 2 It is a three-dimensional schematic view of the structure of the mixing mechanism of the present application;

[0023] Figure 3 It is a three-dimensional schematic view of the surface of the tank body of the present application.

[0024] Figure 4 It is a three-dimensional schematic view of the structural connecting shaft and worm wheel of the utility model;

[0025] Figure 5 It is a three-dimensional schematic view of the structural air inlet mechanism of the utility model.

[0026] In the figure: 1, workbench; 2, mixing mechanism; 21, first fixed rod; 22, fixed ring; 23, tank body; 24, air pump; 25, air inlet pipe; 26, air outlet pipe; 27, first motor; 28, worm; 29, sealing bearing; 211, connecting shaft; 212, worm wheel; 213, paddle; 214, first pipeline; 215, first check valve; 3, air inlet mechanism; 31, fixed seat; 32, first gas tank; 33, second pipeline; 34, second check valve; 35, second gas tank; 36, third pipeline; 37, third check valve; 38, connecting cylinder; 39, fixed frame; 311, second motor; 312, screw rod; 313, moving frame; 314, second fixed rod; 315, disc; 316, sealing ring; 317, limiting rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0029] The utility model provides the following technical solutions:

[0030] Embodiment one

[0031] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a gas dilution device, including workbench 1, workbench 1 top right side is provided with mixing mechanism 2, workbench 1 top left side is provided with air inlet mechanism 3;

[0032] The mixing mechanism 2 comprises a first fixed rod 21 fixedly connected to the top right side of the workbench 1, a fixed ring 22 fixedly connected to the top end of the first fixed rod 21, a tank body 23 fixedly connected to the top of the fixed ring 22, an air pump 24 fixedly connected to the top of the tank body 23, an air inlet pipe 25 fixedly connected to the input end of the air pump 24, an air outlet pipe 26 fixedly connected to the output end of the air pump 24, a first motor 27 fixedly connected to the top right side of the workbench 1, a worm 28 fixedly connected to the output end of the first motor 27, a connecting shaft 211 rotationally connected to the top right side of the workbench 1, a paddle 213 fixedly connected to the top end of the connecting shaft 211, a worm wheel 212 fixedly connected to the surface of the connecting shaft 211 close to the bottom end, a sealing bearing 29 arranged at the bottom of the tank body 23, a first pipeline 214 fixedly connected to the surface of the tank body 23, and a first check valve 215 fixedly connected to the surface of the first pipeline 214.

[0033] A hole matched with the air inlet pipe 25 is formed in the top of the tank body 23, and the air inlet pipe 25 penetrates through the hole and is fixedly connected in the hole.

[0034] The worm 28 is engaged with the worm wheel 212.

[0035] A hole matched with the sealing bearing 29 is formed in the bottom of the tank body 23, and the outer ring of the sealing bearing 29 works in the hole and is fixedly connected in the hole.

[0036] Example two

[0037] Please refer to Figure 5 , and further obtain an air inlet mechanism 3 on the basis of example one.

[0038] The air inlet mechanism 3 comprises a fixed seat 31 fixedly connected to the top left side of the workbench 1, a first gas tank 32 fixedly connected to the top left side of the fixed seat 31, a second pipeline 33 fixedly connected to the front end of the first gas tank 32, a second check valve 34 fixedly connected to the surface of the second pipeline 33, a second gas tank 35 fixedly connected to the top right side of the fixed seat 31, a third pipeline 36 fixedly connected to the front end of the second gas tank 35, a third check valve 37 fixedly connected to the surface of the third pipeline 36, a connecting cylinder 38 fixedly connected to the top of the workbench 1, a fixed frame 39 fixedly connected to the surface of the connecting cylinder 38 close to the top, a second motor 311 fixedly connected to the top of the fixed frame 39, a screw rod 312 fixedly connected to the output end of the second motor 311, a moving frame 313 threadedly connected to the surface of the screw rod 312, a second fixed rod 314 fixedly connected to the bottom of the moving frame 313, a disc 315 fixedly connected to the bottom end of the second fixed rod 314, a sealing ring 316 arranged on the surface of the disc 315, and a limiting rod 317 arranged on the top of the moving frame 313 in a left-right symmetrical manner.

[0039] The left side surface of the connecting cylinder 38 is provided with holes matching the second pipeline 33 and the third pipeline 36 near the bottom, and the second gas pipe and the third gas pipe are respectively penetrated and fixed in the corresponding holes.

[0040] The top of the fixing frame 39 is provided with a hole matching the output shaft of the second motor 311, and the output shaft of the second motor 311 is penetrated and rotationally connected in the hole.

[0041] The surface of the disc 315 is provided with a circular groove matching the sealing ring 316, and the sealing ring 316 is attached to the circular groove, facilitating the replacement of the sealing ring 316.

[0042] The top of the fixing frame 39 is provided with holes matching the limiting rods 317 on the left and right sides, and the limiting rods 317 are penetrated and slidingly connected in the holes. The limiting rods 317 limit the movement of the moving frame 313, so that the moving frame 313 can only move up and down with the rotation of the screw rod 312.

[0043] The surface of the connecting cylinder 38 is provided with a hole matching the first pipeline 214 near the bottom, and the first pipeline 214 is penetrated and fixed in the hole.

[0044] In actual operation, when the device is used, the second motor 311 is started to make the screw rod 312 rotate, which makes the moving frame 313 move upwards, thereby driving the disc 315 and the sealing ring 316 to move upwards in the connecting cylinder 38, forming a pressure difference in the connecting cylinder 38, so that the inert gas in the first gas tank 32 and the dilution gas in the second gas tank 35 are respectively transported into the connecting cylinder 38 from the second pipeline 33 and the second pipeline 33, and then the screw rod 312 is reversed by the operation of the second motor 311, so that the moving frame 313 drives the disc 315 and the sealing ring 316 to move downwards, so that the inert gas and the dilution gas in the connecting cylinder 38 are transported into the tank body 23 through the first pipeline 214, and after the transportation is completed, the first motor 27 is started to make the worm 28 rotate, which makes the worm wheel 212 rotate, thereby driving the connecting shaft 211 to rotate, so that the paddle 213 rotates, which makes the tank body 23 and the inert gas and the dilution gas mix, and the sealing bearing 29 can prevent the gas from leaking from the tank body 23. The gas pump 24 is started to transport the mixed gas in the tank body 23 into the gas outlet pipe 26 through the gas inlet pipe 25, and the mixed gas is discharged from the gas outlet pipe 26.

[0045] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are not intended to denote a physical order, quantity, or importance, but rather are used for the purpose of nomenclature.

Claims

1. A gas dilution apparatus comprising a workbench (1), characterized in that: The right side of the top of the workbench (1) is provided with a mixing mechanism (2), and the left side of the top of the workbench (1) is provided with an air inlet mechanism (3). The mixing mechanism (2) comprises a first fixed rod (21), the first fixed rod (21) is fixedly connected to the right side of the top of the workbench (1), the top end of the first fixed rod (21) is fixedly connected with a fixed ring (22), the top of the fixed ring (22) is fixedly connected with a tank body (23), the top of the tank body (23) is fixedly connected with an air pump (24), the input end of the air pump (24) is fixedly connected with an air inlet pipe (25), the output end of the air pump (24) is fixedly connected with an air outlet pipe (26), the right side of the top of the workbench (1) is fixedly connected with a first motor (27), the output end of the first motor (27) is fixedly connected with a worm (28), the right side of the top of the workbench (1) is rotatably connected with a connecting shaft (211), the top end of the connecting shaft (211) is fixedly connected with a paddle (213), the surface of the connecting shaft (211) is fixedly connected with a worm wheel (212) close to the bottom end, the bottom of the tank body (23) is provided with a sealing bearing (29), the surface of the tank body (23) is fixedly connected with a first pipeline (214), and the surface of the first pipeline (214) is fixedly connected with a first check valve (215).

2. A gas dilution device according to claim 1, characterised in that: The top of the tank body (23) is provided with a hole matched with the air inlet pipe (25), and the surface of the air inlet pipe (25) penetrates and is fixedly connected in the hole.

3. A gas dilution device according to claim 1, characterized in that: The worm (28) is engaged with the worm wheel (212).

4. A gas dilution device according to claim 1, characterized in that: The bottom of the tank body (23) is provided with a hole matched with the sealing bearing (29), and the outer ring of the sealing bearing (29) works and is fixedly connected in the hole.

5. A gas dilution device according to claim 1, characterized in that: The air inlet mechanism (3) comprises a fixed seat (31), the fixed seat (31) is fixedly connected to the left side of the top of the workbench (1), the top left side of the fixed seat (31) is fixedly connected with a first gas tank (32), the front end of the first gas tank (32) is fixedly connected with a second pipeline (33), the surface of the second pipeline (33) is fixedly connected with a second check valve (34), the top right side of the fixed seat (31) is fixedly connected with a second gas tank (35), the front end of the second gas tank (35) is fixedly connected with a third pipeline (36), the surface of the third pipeline (36) is fixedly connected with a third check valve (37), the top of the workbench (1) is fixedly connected with a connecting barrel (38), the surface of the connecting barrel (38) is fixedly connected with a fixed frame (39) close to the top, the top of the fixed frame (39) is fixedly connected with a second motor (311), the output end of the second motor (311) is fixedly connected with a screw rod (312), the surface of the screw rod (312) is threadedly connected with a moving frame (313), the bottom of the moving frame (313) is fixedly connected with a second fixed rod (314), the bottom end of the second fixed rod (314) is fixedly connected with a disc (315), the surface of the disc (315) is provided with a sealing ring (316), and the top of the moving frame (313) is provided with a limiting rod (317) symmetrically arranged on the left and right sides.

6. A gas dilution device according to claim 5, characterised in that: The left side surface of the connecting cylinder (38) is provided with holes matched with the second pipeline (33) and the third pipeline (36) near the bottom, and the second air pipe and the third air pipe are respectively penetrated and fixedly connected into the corresponding holes.

7. A gas dilution device according to claim 5, characterised in that: The top of the fixing frame (39) is provided with a hole matched with the output shaft of the second motor (311), and the output shaft of the second motor (311) is penetrated and rotationally connected into the hole.

8. A gas dilution device according to claim 5, characterized in that: The surface of the disc (315) is provided with a circular groove matched with the sealing ring (316), and the sealing ring (316) is attached to the circular groove.

9. A gas dilution device according to claim 5, characterized in that: The top of the fixing frame (39) is provided with holes matched with the limiting rods (317) on the left and right sides, and the limiting rods (317) are penetrated and slidingly connected into the holes.

10. A gas dilution device according to claim 5, characterized in that: The surface of the connecting cylinder (38) is provided with a hole matched with the first pipeline (214) near the bottom, and the first pipeline (214) is penetrated and fixedly connected into the hole.

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