A power supply device for vacuum cryogenic distillation

Abstract

This utility model discloses an energy supply device for low-temperature distillation under reduced pressure, belonging to the technical field of distillation energy supply equipment. It includes a vacuum pump with an inlet and outlet pipe respectively; a three-way valve connected to one end of the inlet pipe, with sealing components at both ends for unidirectional gas transport control within the pipeline; and a filter assembly connected to the other end of the sealing components for filtering the gas in the pipeline, and the filter assembly has a detachable structure. Through the cooperation of the two three-way valve components, two independent extraction channels are formed. With the assistance of the sealing components and the three-way valve, the extraction channels can be switched by changing the valve core, allowing maintenance of the filter assembly in the other extraction channel without shutting down the system.

Description

Technical Field

[0001] This utility model relates to the technical field of distillation power supply equipment, specifically a power supply equipment for low-temperature distillation under reduced pressure. Background Technology

[0002] Low-pressure distillation equipment is an industrial device that achieves low-pressure distillation by drawing a vacuum. Vacuuming is a crucial part of the process. The core functional equipment during vacuuming is the vacuum pump system. The vacuum pump works to reduce the system pressure and achieve low-temperature distillation, thereby ensuring the accuracy of decompression in the distillation process.

[0003] Existing vacuum pump systems mainly consist of a vacuum pump, a filter, and a pumping pipe. By installing a filter, the pumped gas source is filtered to prevent impurities in the gas from entering the pump body and causing friction damage to the inner wall of the pump body. However, the filter needs to be maintained regularly during use to prevent clogging and affecting the pumping effect. Traditional vacuum pump systems require the machine to be stopped to replace the filter element during filter maintenance, which reduces the stability of continuous operation of the device.

[0004] Therefore, this utility model provides an energy supply device for low-temperature distillation under reduced pressure to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved This invention provides an energy supply device for low-temperature distillation under reduced pressure, aiming to solve the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an energy supply device for low-temperature distillation under reduced pressure, comprising a vacuum pump, wherein the vacuum pump is provided with a suction pipe and an outlet pipe at its inlet and outlet ends, respectively. A three-way pipe is connected to the end of the extraction pipe, and the other two ends of the three-way pipe are connected to sealing components, which are used for unidirectional control of gas delivery inside the pipe. A filter assembly is connected to the other end of a sealing assembly and is used for filtering pipeline gas; the filter assembly has a detachable structure. A guide tube is connected to the other end of the filter assembly, and the other end of the guide tube is connected to a three-way valve, which is used to switch the direction of gas flow in the pipeline.

[0007] As a preferred technical solution of this application, both the three-way pipe and the three-way valve are three-way shaped structures, and the three-way pipe and the three-way valve form two independent air extraction channels.

[0008] As a preferred technical solution of this application, the sealing assembly includes a sealing tube, and the two ends of the sealing tube are respectively connected to the tee pipe and the filter assembly by flanges. The inner wall of the sealing tube is fixedly connected to a support frame and an abutment ring. The support frame has a first guide rod and a second guide rod slidingly passing through it, and a valve plate is fixedly connected to one end of the first guide rod and the second guide rod.

[0009] As a preferred technical solution of this application, a spring is sleeved on the outside of the first guide rod, and the two ends of the spring abut against the support frame and the valve plate respectively. The end of the valve plate away from the first guide rod abuts against the surface of the abutment ring. A vent ring is also provided on the inner wall of the sealing tube, and the inner diameter of the vent ring is larger than the outer diameter of the valve plate.

[0010] As a preferred technical solution of this application, the filter assembly includes a filter cylinder, and the two ends of the filter cylinder are respectively connected to a sealing pipe and a guide pipe by flanges. The open end of the filter cylinder is sealed with an inspection cover, and a mesh frame is fixedly connected to the inner wall of the filter cylinder, with filter elements abutting between the mesh frames.

[0011] As a preferred technical solution of this application, the opening of the filter cylinder is semi-circular, and the end wall of the filter cylinder opening is stepped. The outer wall of the horizontal end of the filter cylinder and the inspection cover that are close to each other has a positioning lug, and the positioning lug is penetrated by a fastening bolt.

[0012] As a preferred technical solution of this application, the three-way valve has an internally sealed rotating valve core, and valve stems are fixedly connected to both sides of the valve core, extending through to the outer wall of the three-way valve.

[0013] (III) Beneficial Effects The beneficial effects of this application are as follows: 1. This utility model uses the cooperation of two three-way structural components to form two independent air extraction channels. With the assistance of the sealing component and the three-way valve, the air extraction channel can be switched by changing the valve core. This allows for the maintenance of the filter component in the other air extraction channel. The filter element can be disassembled and maintained without stopping the machine, thereby improving the stability and safety of continuous operation of the device and avoiding the situation where the air extraction efficiency is reduced due to filter component blockage.

[0014] 2. This utility model, through the setting of a detachable filter assembly, enables the removal and maintenance of the filter element. The filter element is removed and installed from the side, making the removal and installation of the filter element more convenient. The filter element can be replaced without disassembling the entire filter cartridge. Thus, by replacing the filter element alternately, the smoothness of air extraction during continuous operation of the device is ensured. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of the present utility model; Figure 2 This is a schematic diagram of the filter assembly of this utility model in its installed state. Figure 3 This is a schematic diagram of the axial cross-sectional structure of the filter assembly of this utility model; Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the middle; Figure 5 This is a schematic diagram of a partial explosion of the sealing component of this utility model; Figure 6 This is a partial exploded view of the filter assembly of this utility model.

[0016] In the picture: 1. Vacuum pump; 11. Suction pipe; 12. Exhaust pipe; 2. T-connector; 3. Sealing assembly; 31. Sealing tube; 32. Support frame; 33. First guide rod; 34. Second guide rod; 35. Valve plate; 36. Spring; 37. Abutment ring; 4. Filter assembly; 41. Filter cartridge; 42. Inspection cover; 43. Mesh frame; 44. Filter element; 5. Guide tube; 6. Three-way valve; 61. Valve core; 62. Valve stem. Detailed Implementation

[0017] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-6As shown, this utility model provides an energy supply device for vacuum low-temperature distillation, including a vacuum pump 1, with an inlet and outlet pipe 11 and an outlet pipe 12 respectively; a three-way pipe 2 connected to one end of the vacuum pump 11, with sealing components 3 connected to the other two ends of the three-way pipe 2, and the sealing components 3 are used for unidirectional gas transport control inside the pipeline; a filter component 4 connected to the other end of the sealing components 3, and the filter component 4 is used for filtering the gas in the pipeline, and the filter component 4 has a detachable structure; and a guide pipe 5 connected to... At the other end of the filter assembly 4 and the other end of the guide tube 5, a three-way valve 6 is connected. The three-way valve 6 is used to switch the direction of gas flow in the pipeline. Both the three-way pipe 2 and the three-way valve 6 are three-way structures, and the three-way pipe 2 and the three-way valve 6 form two independent air extraction channels. With the auxiliary cooperation of the two independent air extraction channels, the device can be used to replace the filter element 44 inside a single air extraction channel through indirect operation. This allows the device to operate without stopping, and at the same time, the filter element 44 can be disassembled and maintained, avoiding the filter element 44 from becoming clogged and reducing the air extraction efficiency.

[0019] Furthermore, the sealing assembly 3 includes a sealing tube 31, with both ends of the sealing tube 31 connected to the tee pipe 2 and the filter assembly 4 via flanges, respectively. A support frame 32 and an abutment ring 37 are fixedly connected to the inner wall of the sealing tube 31. A first guide rod 33 and a second guide rod 34 slide through the support frame 32, and a valve plate 35 is fixedly connected to one end of the first guide rod 33 and the second guide rod 34. A spring 36 is sleeved on the outside of the first guide rod 33, and both ends of the spring 36 abut against the support frame 32 and the valve plate 35, respectively. Between the plates 35, the end of the valve plate 35 away from the first guide rod 33 abuts against the surface of the abutment ring 37. The inner wall of the sealing tube 31 is also provided with a vent ring, and the inner diameter of the vent ring is larger than the outer diameter of the valve plate 35. By the lifting of the spring 36, the valve plate 35 abuts against one side of the abutment ring 37, which can realize one-way control inside the sealing tube 31, thereby avoiding the backflow of gas when maintaining one of the air extraction channels. The second guide rods 34 are arranged in a circumferential array, which plays a good guiding and limiting role.

[0020] Furthermore, the filter assembly 4 includes a filter cartridge 41, with both ends of the filter cartridge 41 connected to the sealing tube 31 and the guide tube 5 via flanges, respectively. An inspection cover 42 is sealingly connected to the open end of the filter cartridge 41, and a mesh frame 43 is fixedly connected to the inner wall of the filter cartridge 41. Filter elements 44 abut against the mesh frames 43. The opening of the filter cartridge 41 has a semi-circular structure, and the wall of the open end of the filter cartridge 41 is stepped. This stepped structure ensures good sealing performance when the filter cartridge 41 and the inspection cover 42 are joined, compared to traditional planar contact. The bending surfaces are pressed together to ensure the sealing of the filter cartridge 41 and the inspection cover 42. The outer walls of the horizontal ends of the filter cartridge 41 and the inspection cover 42 that are close to each other have positioning lugs, and fastening bolts pass through the positioning lugs. The side-opening structure of the filter cartridge 41 and the inspection cover 42 facilitates the disassembly and maintenance of the filter element 44 inside the filter cartridge 41, thereby improving the convenience of disassembly and assembly of the filter element 44. By disassembling and assembling the filter element 44, the device is ensured to have good air extraction performance, and impurities in the air source are filtered, thereby improving the service life of the vacuum pump 1.

[0021] Furthermore, the three-way valve 6 has an internally sealed rotating valve core 61, and valve stems 62 are fixedly connected to both sides of the valve core 61, extending through to the outer wall of the three-way valve 6. External drive devices and handles can be connected to the valve stems 62 to realize automatic and manual control.

[0022] Working principle: First, the device is assembled. When the vacuum pump 1 is started, it pumps air to reduce the system pressure and achieves low-temperature distillation. When the device works continuously, the filter element 44 inside the filter assembly 4 will gradually become clogged, which will affect the pumping efficiency. At this time, by rotating the valve core 61, the direction of the pumping air can be adjusted, so that the pumped air flows to another pumping channel. Then, under the sealing cut-off of the sealing assembly 3 and the valve core 61, the filter element 44 can be disassembled and maintained, thereby ensuring the continuity of the vacuum operation of the device, the filtration performance of the filter element 44, and the smoothness of the pumping.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A power supply device for vacuum low-temperature distillation, characterized in that: Includes a vacuum pump (1), wherein the vacuum pump (1) is provided with an air extraction pipe (11) and an air outlet pipe (12) at its inlet and outlet ends, respectively. A three-way pipe (2) is connected to the end of the extraction pipe (11), and the other two ends of the three-way pipe (2) are connected to sealing components (3), and the sealing components (3) are used for unidirectional control of gas delivery inside the pipe. The filter assembly (4) is connected to the other end of the sealing assembly (3) and is used for filtering pipeline gas. The filter assembly (4) has a detachable structure. A guide tube (5) is connected to the other end of the filter assembly (4), and a three-way valve (6) is connected to the other end of the guide tube (5). The three-way valve (6) is used for switching control of the gas flow direction in the pipeline.

2. The power supply device for vacuum low-temperature distillation according to claim 1, characterized in that: The three-way pipe (2) and the three-way valve (6) are both three-way structures, and the three-way pipe (2) and the three-way valve (6) form two independent air extraction channels.

3. The power supply device for vacuum low-temperature distillation according to claim 1, characterized in that: The sealing assembly (3) includes a sealing tube (31), and the two ends of the sealing tube (31) are respectively connected to the three-way pipe (2) and the filter assembly (4) by flanges. The inner wall of the sealing tube (31) is fixedly connected to a support frame (32) and an abutment ring (37). The support frame (32) has a first guide rod (33) and a second guide rod (34) slidingly passing through its interior. A valve plate (35) is fixedly connected to one end of the first guide rod (33) and the second guide rod (34).

4. The power supply device for vacuum low-temperature distillation according to claim 3, characterized in that: A spring (36) is sleeved on the outside of the first guide rod (33), and the two ends of the spring (36) abut against the support frame (32) and the valve plate (35) respectively. The end of the valve plate (35) away from the first guide rod (33) abuts against the surface of the abutment ring (37). A venting ring is also provided on the inner wall of the sealing tube (31), and the inner diameter of the venting ring is larger than the outer diameter of the valve plate (35).

5. The power supply device for vacuum low-temperature distillation according to claim 1, characterized in that: The filter assembly (4) includes a filter cylinder (41), and the two ends of the filter cylinder (41) are respectively connected to the sealing tube (31) and the guide tube (5) by flanges. The open end of the filter cylinder (41) is sealed with an inspection cover (42), and the inner wall of the filter cylinder (41) is fixedly connected with a mesh frame (43), and the mesh frames (43) abut against each other with filter elements (44).

6. The power supply device for vacuum low-temperature distillation according to claim 5, characterized in that: The filter cylinder (41) has a semi-circular opening and the wall of the opening end of the filter cylinder (41) is stepped. The outer wall of the horizontal end of the filter cylinder (41) and the inspection cover (42) that are close to each other has a positioning lug, and the positioning lug is penetrated by a fastening bolt.

7. The power supply device for vacuum low-temperature distillation according to claim 1, characterized in that: The three-way valve (6) has an internally sealed rotating valve core (61), and valve stems (62) are fixedly connected to both sides of the valve core (61) and extend through to the outer wall of the three-way valve (6).

Images