A plurality of liquid level control devices for a space division device

Abstract

The utility model belongs to air separation device technical field, specifically disclose a multiple liquid level control equipment for air separation device, including equipment body, the top fixed connection of equipment body has the guide cylinder, the top fixed connection of equipment body has the protection box, the top fixed connection of protection box has the oil storage tank, the inside fixed connection of oil storage tank has the oil discharge pipe extending to the inside of protection box, the top fixed connection of guide cylinder has the flow guide frame, the structure of this multiple liquid level control equipment for air separation device, through the protection of protection box, reduce the guide cylinder direct exposure in the external environment to a certain extent, make the impurity in the external environment easy to adhere to the inside of guide cylinder, make the movement of connecting rod be affected, and cause the device operation to appear the abrasion, make the device service life reduce the situation appear, through the flow guide frame can be to the lubricating oil of protection box discharge guide, and make lubricating oil can more smoothly enter guide cylinder and connecting rod between lubrication.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment technology, specifically to a multiple liquid level control device for an air separation equipment. Background Technology

[0002] Air separation refers to the process of separating components from air based on their different physical properties, using the principle of cryogenic freezing. These components include oxygen, nitrogen, argon, and helium. Air separation typically involves first compressing and cooling the air to a very low temperature, or liquefying it through expansion. The separated gases are then separated in a distillation column. The separated gases are then passed through a main condenser to obtain different liquid gases, such as liquid oxygen and liquid nitrogen. The resulting liquid gases flow out of the distillation column outlet and into a storage tank via an inlet pipe for later use.

[0003] A search revealed a Chinese patent publication number, CN220820511U, which discloses a multi-level control device for an air separation unit. The device includes an inlet pipe connected to the outlet of a distillation column and several branch pipes connected to the inlet pipe. An electric regulating valve is installed on the inlet pipe, and the electric regulating valve is electrically connected to a wireless receiving module for controlling its opening and closing. The wireless receiving module is wirelessly connected to a controller. The branch pipes are connected in parallel, and each branch pipe is equipped with a shut-off valve. The free end of each branch pipe is connected to a storage tank, and a wireless transmitting module, wirelessly connected to the wireless receiving module, is installed on the outside of each storage tank.

[0004] While the aforementioned patents can solve the problem of requiring a large number of wires and cables during the installation of multiple liquid level control devices in air separation units, the aforementioned devices still have the following problems: During use, because the guide cylinder of the device is directly exposed to the outside, it forms a channel for external pollutants to migrate inward. When the device is in use, there are certain dust and other pollutants floating in the external environment. These pollutants accumulate in the guide cylinder, which easily leads to increased friction of the moving parts, thereby causing wear. Once this wear occurs, it will further aggravate the operating resistance and wear degree of the device, forming a vicious cycle and ultimately significantly reducing the overall service life of the device. In view of the above situation, technological innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of this invention is to provide a multi-level control device for an air separation unit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-level control device for an air separation unit, comprising a device body, a guide cylinder fixedly connected to the top of the device body, a protective box fixedly connected to the top of the device body, an oil storage tank fixedly connected to the top of the protective box, an oil drain pipe fixedly connected inside the oil storage tank extending into the protective box, a flow guide frame fixedly connected to the top of the guide cylinder, a support plate fixedly connected to the inner wall of the protective box, a rotating rod rotatably connected to the top of the support plate, a transmission plate fixedly connected to the top of the rotating rod, a baffle fixedly connected to one side of the transmission plate, and a power transmission device provided on the top of the device body.

[0007] As a preferred technical solution of this application, the oil drain pipe is installed at an angle inside the protective box, and a rubber layer is provided on the baffle.

[0008] As a preferred technical solution of this application, the power transmission device includes a motor, the bottom of the motor is fixedly connected to the top of the equipment body, a power rod is fixedly connected to the output end of the motor, and a blocking rod is fixedly connected to the top of the transmission plate.

[0009] As a preferred technical solution of this application, the blocking rod is located away from the rotating rod.

[0010] As a preferred technical solution of this application, a maintenance plate is provided on one side of the protective box.

[0011] As a preferred technical solution of this application, a torsion spring is fixedly connected to the bottom of the transmission plate, and the bottom end of the torsion spring is fixedly connected to the top of the support plate.

[0012] As a preferred technical solution of this application, the torsion spring is movably sleeved on the rotating rod.

[0013] As a preferred technical solution of this application, a gear is fixedly connected to the outer surface of the motor, and a gear ring is fixedly connected to the outer surface of the guide frame. The gear ring is connected to the surface of the gear through tooth meshing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The air separation unit uses a structure with multiple liquid level control devices. Through the protection of the protective box, the direct exposure of the guide cylinder to the external environment is reduced to a certain extent. This prevents impurities in the external environment from easily adhering to the inside of the guide cylinder, affecting the movement of the connecting rod, causing wear during operation, and reducing the service life of the unit. The guide frame can guide the lubricating oil discharged from the protective box, allowing the lubricating oil to enter the guide cylinder and connecting rod more smoothly for lubrication, and enabling the unit to move more smoothly.

[0016] 2. The air separation unit uses a structure with multiple liquid level control devices. The rotation of the motor enables the gear to drive the gear ring and the guide frame to rotate. The rotation of the guide frame allows the dripping lubricating oil to slide more evenly into different positions inside the guide cylinder, so that the unit can be more fully lubricated and can operate more smoothly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of multiple liquid level control devices for an air separation unit according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the protective box of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the diagram.

[0021] In the diagram: 1. Equipment body; 2. Protective box; 3. Maintenance plate; 4. Oil tank; 5. Oil drain pipe; 6. Motor; 7. Guide cylinder; 8. Flow guide frame; 9. Gear ring; 10. Gear; 11. Baffle; 12. Power rod; 13. Transmission plate; 14. Blocking rod; 15. Rotating rod; 16. Torsion spring; 17. Support fixing plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A multiple liquid level control device for an air separation unit includes a main body 1. The main body 1 is an existing structure and will not be explained in detail here. The main body 1 includes an inlet pipe connected to the outlet of a distillation column and several branch pipes connected to the inlet pipe. An electric regulating valve is installed on the inlet pipe, enabling the main body 1 to perform multiple liquid level controls (see patent: CN220820511U). A guide cylinder 7 is fixedly connected to the top of the main body 1. A connecting rod extending into the interior of the main body 1 is provided inside the guide cylinder 7. A float is installed at the bottom of the device, which guides the connecting rod through the guide cylinder 7, enabling the device to operate more smoothly. A protective box 2 is fixedly connected to the top of the device body 1, and an oil storage tank 4 is fixedly connected to the top of the protective box 2. The oil storage tank 4 can hold lubricating oil, and an oil drain pipe 5 extending into the protective box 2 is fixedly connected inside the oil storage tank 4. The oil drain pipe 5 is installed at an angle inside the protective box 2. A flow guide 8 is fixedly connected to the top of the guide cylinder 7. Through the protection of the protective box 2, the direct exposure of the guide cylinder 7 to the outside is reduced to a certain extent. In the internal environment, impurities from the external environment can easily adhere to the inside of the guide cylinder 7, affecting the movement of the connecting rod and causing wear during device operation, thus reducing the service life of the device. The guide frame 8 can guide the lubricating oil discharged from the protective box 2, allowing the lubricating oil to enter the guide cylinder 7 and the connecting rod more smoothly for lubrication, and enabling the device to move more smoothly. The inner wall of the protective box 2 is fixedly connected to a support plate 17, and the top of the support plate 17 is rotatably connected to a rotating rod 15. The top of the rotating rod 15 is fixedly connected to a transmission plate 13, and a baffle 11 is fixedly connected to one side of the transmission plate 13. The baffle 11 is provided with a rubber layer, which can seal the bottom of the oil drain pipe 5. The rotation of the baffle 11 can realize the opening and closing of the oil drain pipe 5, and allow the lubricating oil inside the oil drain pipe 5 to drip. At the same time, the diameter of the oil drain pipe 5 is designed so that the lubricating oil can only drip, without discharging too much at once, and the device can be lubricated without wasting lubricating oil. A power transmission device is provided on the top of the equipment body 1.

[0028] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the power transmission device includes a motor 6. The bottom of the motor 6 is fixedly connected to the top of the equipment body 1. The motor 6 is an existing structure and will not be explained in detail here. The output end of the motor 6 is fixedly connected to a power rod 12. The top of the transmission plate 13 is fixedly connected to a blocking rod 14. The blocking rod 14 is located away from the rotating rod 15. The operator starts the motor 6 through an external control device. The motor 6 drives the power rod 12 to rotate. The power rod 12 pushes the transmission plate 13 to rotate around the rotating rod 15 as the rotation axis through the blocking rod 14. This causes the baffle 11 to disengage from the bottom of the oil drain pipe 5, thereby opening the oil drain pipe 5. This allows the lubricating oil inside the oil drain pipe 5 to drip into the inside of the guide frame 8 and slide into the guide cylinder 7 and connecting rod for lubrication and protection through the guide frame 8.

[0029] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a maintenance plate 3 is provided on one side of the protective box 2, which enables staff to maintain the internal structure of the protective box 2 more easily.

[0030] Example 2

[0031] The multiple liquid level control devices for an air separation unit provided in Example 1 are further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a gear 10 is fixedly connected to the outer surface of the motor 6, and a gear ring 9 is fixedly connected to the outer surface of the guide frame 8. The gear ring 9 is connected to the surface of the gear 10 through tooth meshing. By rotating the motor 6, the gear 10 can drive the gear ring 9 and the guide frame 8 to rotate. By rotating the guide frame 8, the dripping lubricating oil can slide more evenly into different positions inside the guide cylinder 7, so that the device can be more fully lubricated and the device can operate more smoothly.

[0032] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a torsion spring 16 is fixedly connected to the bottom of the transmission plate 13. The bottom end of the torsion spring 16 is fixedly connected to the top of the support plate 17. The torsion spring 16 is movably sleeved on the rotating rod 15.

[0033] Working principle: For this type of device, multiple liquid levels can be controlled by the main body 1. The protective box 2 reduces the direct exposure of the guide cylinder 7 to the external environment, making it easier for impurities in the external environment to adhere to the inside of the guide cylinder 7, affecting the movement of the connecting rod and causing wear and tear on the device, thus reducing its service life. The guide frame 8 guides the lubricating oil discharged from the protective box 2, allowing the lubricating oil to enter the guide cylinder 7 and the connecting rod more smoothly for lubrication, and enabling the device to move more smoothly.

[0034] The rotation of motor 6 causes gear 10 to drive gear ring 9 and guide frame 8 to rotate. The rotation of guide frame 8 allows the dripping lubricating oil to slide more evenly into different positions inside guide cylinder 7, so that the device can be more fully lubricated and can operate more smoothly.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plurality of liquid level control devices for an air separation unit, comprising a device body (1), wherein a guide cylinder (7) is fixedly connected to the top of the device body (1), characterized in that: The top of the equipment body (1) is fixedly connected to a protective box (2), the top of the protective box (2) is fixedly connected to an oil storage tank (4), the inside of the oil storage tank (4) is fixedly connected to an oil drain pipe (5) extending into the inside of the protective box (2), the top of the guide cylinder (7) is fixedly connected to a flow guide frame (8), the inner wall of the protective box (2) is fixedly connected to a support fixing plate (17), the top of the support fixing plate (17) is rotatably connected to a rotating rod (15), the top of the rotating rod (15) is fixedly connected to a transmission plate (13), one side of the transmission plate (13) is fixedly connected to a baffle (11), and the top of the equipment body (1) is provided with a power transmission device.

2. The multiple liquid level control devices for an air separation unit according to claim 1, characterized in that: The oil drain pipe (5) is installed at an angle inside the protective box (2), and a rubber layer is provided on the baffle (11).

3. The multiple liquid level control device for an air separation unit according to claim 2, characterized in that: The power transmission device includes a motor (6), the bottom of the motor (6) is fixedly connected to the top of the equipment body (1), the output end of the motor (6) is fixedly connected to a power rod (12), and the top of the transmission plate (13) is fixedly connected to a blocking rod (14).

4. The multiple liquid level control device for an air separation unit according to claim 3, characterized in that: The blocking rod (14) is positioned away from the rotating rod (15).

5. A plurality of liquid level control devices for an air separation unit according to claim 1, characterized in that: A maintenance plate (3) is provided on one side of the protective box (2).

6. A plurality of liquid level control devices for an air separation unit according to claim 4, characterized in that: A torsion spring (16) is fixedly connected to the bottom of the transmission plate (13), and the bottom end of the torsion spring (16) is fixedly connected to the top of the support plate (17).

7. A plurality of liquid level control devices for an air separation unit according to claim 6, characterized in that: The torsion spring (16) is movably sleeved on the rotating rod (15).

8. A plurality of liquid level control devices for an air separation unit according to claim 4, characterized in that: The outer surface of the motor (6) is fixedly connected to a gear (10), and the outer surface of the guide frame (8) is fixedly connected to a toothed ring (9). The toothed ring (9) is connected to the surface of the gear (10) by meshing through its teeth.

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