High-speed radial turbo expander

Abstract

The high-speed radial turbo expander comprises a base, an expander body is fixedly connected to the upper end of the base, a transmission shaft is in transmission connection with a port of one side of the expander body, a sleeve is arranged on the side wall of the expander body, and the transmission shaft is located in the sleeve; a connecting base is arranged on one side of the expansion machine body, a supporting device is fixedly connected to the lower end of the connecting base, an oil storage barrel is fixedly connected to the side wall of the connecting base and communicates with the sleeve through a conveying pipe, and an upper cover is arranged above the oil storage barrel. The upper cover is connected with the oil storage barrel through a connecting device, an oil pumping device is fixedly connected to the inner wall of the upper cover, and a cleaning device is rotationally connected to the position, at the corresponding position, of the side wall of the sleeve. The transmission shaft is reasonable in structural design, and has the advantages of being capable of guaranteeing the rotation smoothness of the transmission shaft, treating old lubricating oil in time and cleaning overflowed oil stains in time.

Description

Technical Field

[0001] This invention relates to the field of turbine expander technology, and more particularly to a high-speed radial turbine expander. Background Technology

[0002] Turbine expanders are crucial components for obtaining cooling capacity in air separation equipment, natural gas liquefaction separation equipment, and cryogenic pulverizing equipment. They are the heart of ensuring the stable operation of the entire system. Their main principle is to utilize the adiabatic expansion of pressurized gas within the turbine expander to perform work on the outside, thus consuming the gas's internal energy and intensely cooling the gas itself to achieve refrigeration. When you pump air with a gas cylinder, you'll notice the cylinder gets hot because the piston releases heat when compressing the gas. Conversely, the principle is similar to that of an expander, or more precisely, a piston expander. The energy output by the turbine expander is recovered by a coaxial compressor or consumed by a brake fan.

[0003] In the prior art, when a turbo expander is used for air separation and refrigeration, its internal drive shaft is driven to rotate, which can convert the internal energy of the gas itself into external energy such as electrical energy. In this process, the drive shaft plays a very important role in transmission. When the drive shaft rotates in the corresponding sleeve, the smoothness of its rotation directly determines the efficiency of energy conversion. In order to ensure the smoothness of the drive shaft, we propose a high-speed radial turbo expander. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-speed radial turbine expander.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-speed radial turbine expander includes a base, an expander body fixedly connected to the upper end of the base, a drive shaft drivenly connected to one side port of the expander body, a sleeve provided on the side wall of the expander body, the drive shaft located inside the sleeve, a connecting seat provided on one side of the expander body, a support device fixedly connected to the lower end of the connecting seat, an oil storage tank fixedly connected to the side wall of the connecting seat, the oil storage tank and the sleeve being interconnected via a conveying pipe, a top cover provided above the oil storage tank, the top cover being connected to the oil storage tank via a connecting device, an oil pumping device fixedly connected to the inner wall of the top cover, and a cleaning device rotatably connected to the side wall of the sleeve at a corresponding position.

[0006] Preferably, a plurality of sealing gaskets are provided at the connection between the drive shaft and the sleeve.

[0007] Preferably, the support device includes two fixed frames fixedly connected to the lower end of the connecting seat. Both fixed frames are plate-shaped structures. The lower ends of both fixed frames are fixedly connected to the upper end of the base. Both fixed frames have through grooves through their side walls. The sleeve passes through both through grooves.

[0008] Preferably, the connecting device includes a threaded connector fixedly connected to the lower end of the upper cover, and an internal thread is provided on the inner wall of the opening of the oil storage cylinder at the corresponding position, and the threaded connector is threadedly connected to the opening of the oil storage cylinder.

[0009] Preferably, the oil pumping device includes a fixed rod fixedly connected to the inner wall of the upper cover, a small oil pump fixedly connected to the fixed rod, an oil inlet pipe fixedly connected to the input end of the small oil pump, an oil supply pipe fixedly connected to the output end of the small oil pump, the lower end of the oil supply pipe being located inside the delivery pipe, an electrical wiring circuit being electrically connected to the small oil pump, and the lower end of the oil inlet pipe being located at the bottom of the oil storage tank.

[0010] Preferably, the cleaning device includes a rotating ring rotatably connected to the side wall of the sleeve, a rotating groove is provided through the side wall of the sleeve at a corresponding position, a plurality of balls are rotatably connected to the inner wall of the rotating ring, the plurality of balls roll in the rotating groove, a threaded groove is provided through the side wall of the rotating ring, a threaded connecting rod is threadedly connected in the threaded groove, a scraper is fixedly connected to the other end of the threaded connecting rod, and the top of the scraper is located at the outermost connection between the drive shaft and the sleeve.

[0011] Preferably, rubber pads are fixedly connected to the inner walls of both through slots.

[0012] Preferably, a drain pipe is provided through the side wall of the sleeve.

[0013] The present invention has the following beneficial effects; In this invention, by setting up a support device, a connecting device, and an oil pumping device to cooperate with each other, a device that can pump lubricating oil at any time is set at the top of the sleeve. Lubricating oil can be injected into the sleeve through a small oil pump and an oil supply pipe. The lubricating oil can ensure the smoothness of the drive shaft and the sleeve. The lubricating oil in the sleeve that has been used for a long time can be discharged through the drain pipe below for easy replacement. The lubricating oil in the sleeve can be kept lubricated at all times, and it is also convenient to add and replenish the lubricating oil. The lubricating oil can be filled by simply unscrewing the top cover.

[0014] In this invention, a cleaning device is provided, with a scraper installed at the outermost connection between the sleeve and the drive shaft. The scraper can be moved by rotating the corresponding rotating ring. The scraper can remove the oil stains overflowing at the connection between the drive shaft and the sleeve, preventing the overflowing oil stains from mixing with the outside air and causing blockage at the connection and difficult-to-clean oil stains, thus enhancing the smoothness of the drive shaft rotation. The scraper can be removed through a threaded connecting rod, which facilitates subsequent cleaning and replacement of the scraper. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-speed radial turbine expander proposed in this invention; Figure 2 This is a cross-sectional view of the oil reservoir of a high-speed radial turbine expander proposed in this invention; Figure 3 This is a side view of the mounting frame of a high-speed radial turbine expander proposed in this invention; Figure 4 This is a side view of the rotating ring of a high-speed radial turbine expander proposed in this invention.

[0016] In the diagram: 1. Base, 2. Expander body, 3. Electrical conduit, 4. Top cover, 5. Threaded connector, 6. Connecting seat, 7. Oil reservoir, 8. Fixing frame, 9. Rotating ring, 10. Sleeve, 11. Scraper, 12. Conveying pipe, 13. Threaded connecting rod, 14. Drain pipe, 15. Oil inlet pipe, 16. Small oil pump, 17. Fixing rod, 18. Oil supply pipe, 19. Rubber pad, 20. Ball bearing. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Reference Figure 1-4A high-speed radial turbine expander includes a base 1, an expander body 2 fixedly connected to the upper end of the base 1, a drive shaft connected to one side port of the expander body 2, a sleeve 10 provided on the side wall of the expander body 2, the drive shaft located inside the sleeve 10, and multiple sealing gaskets provided at the connection between the drive shaft and the sleeve 10 to ensure the sealing of the connection between the drive shaft and the sleeve 10 and prevent external moisture from affecting the drive shaft body. A connecting seat 6 is provided on one side of the expander body 2, and a support device is fixedly connected to the lower end of the connecting seat 6. The support device includes two fixed brackets 8 fixedly connected to the lower end of the connecting seat 6. Both fixed brackets 8 are plate-shaped structures, and the lower ends of both fixed brackets 8 are fixedly connected to the upper end of the base 1. Through grooves are provided through the side walls of both fixed brackets 8, and the sleeve 10 passes through the two through grooves. The fixed brackets 8 provide support for the connecting seat 6 and also support the sleeve 10, which can enhance the stability of the equipment.

[0019] The oil reservoir 7 is fixedly connected to the side wall of the connecting seat 6. The oil reservoir 7 is filled with lubricating oil. The oil reservoir 7 and the sleeve 10 are connected to each other through the delivery pipe 12. The top cover 4 is provided above the oil reservoir 7. The top cover 4 is connected to the oil reservoir 7 through a connecting device. The connecting device includes a threaded connector 5 fixedly connected to the lower end of the top cover 4. The inner wall of the opening of the oil reservoir 7 at the corresponding position is provided with an internal thread. The threaded connector 5 is threadedly connected to the opening of the oil reservoir 7. The opening of the oil reservoir 7 can be fully exposed by unscrewing the top cover 4, which is convenient for filling and replenishing lubricating oil.

[0020] The upper cover 4 has an oil pump device fixedly connected to its inner wall. The oil pump device includes a fixed rod 17 fixedly connected to the inner wall of the upper cover 4, a small oil pump 16 fixedly connected to the fixed rod 17, an oil inlet pipe 15 fixedly connected to the input end of the small oil pump 16, and an oil supply pipe 18 fixedly connected to the output end of the small oil pump 16. The lower end of the oil supply pipe 18 is located inside the delivery pipe 12. An electrical conduit 3 is electrically connected to the small oil pump 16, through which power can be supplied to the small oil pump 16 and a controller can be provided for control, facilitating the control of the small oil pump 16. The small oil pump 16 has its inlet pipe 15 located at the bottom of the oil storage tank 7. After the small oil pump 16 is started, it can draw out the lubricating oil stored in the oil storage tank 7 through the inlet pipe 15 and inject it into the delivery pipe 12 through the oil supply pipe 18. Finally, it enters the sleeve 10 to replace the lubricating oil. A drain pipe 14 is installed through the side wall of the sleeve 10. A valve in the prior art is installed on the drain pipe 14. After opening the valve, the old lubricating oil in the sleeve 10 can be discharged through the drain pipe 14 for easy replacement.

[0021] It is worth mentioning that a cleaning device is rotatably connected to the side wall of the sleeve 10 at the corresponding position. The cleaning device includes a rotating ring 9 rotatably connected to the side wall of the sleeve 10. A rotating groove is provided through the side wall of the sleeve 10 at the corresponding position. Multiple balls 20 are rotatably connected to the inner wall of the rotating ring 9. The multiple balls 20 roll in the rotating groove. The multiple balls 20 can reduce friction and make the rotating ring 9 rotate more smoothly. A threaded groove is provided through the side wall of the rotating ring 9, and a threaded screw is connected in the threaded groove. The threaded connecting rod 13 has a scraper 11 fixedly connected to the other end. The top of the scraper 11 is located at the outermost connection between the drive shaft and the sleeve 10. The scraper 11 can be removed by unscrewing the threaded connecting rod 13 from the threaded groove. The scraper 11 can be used to clean the oil spillage at the outermost connection between the drive shaft and the sleeve 10, thus avoiding affecting the transmission of the drive shaft. Rotating the rotating ring 9 will cause the scraper 11 to rotate around the connection, which can clean the spilled oil. The front end of the scraper 11 is designed to be sharp to facilitate the removal of oil.

[0022] Specifically, rubber pads 19 are fixedly connected to the inner walls of both through slots. The rubber pads 19 can reduce the contact resonance between the sleeve 10 and the fixing frame 8 and enhance the stability of the connection.

[0023] In this invention, during normal operation of the expander body 2, the drive shaft rotates within the sleeve 10. When lubricating oil needs to be replenished, the operator can temporarily stop the operation of the expander body 2, then open the corresponding drain pipe 14 to release the old lubricating oil from the sleeve 10, and then close the drain pipe 14. At this time, the operator can drive the small oil pump 16 using a driver in the prior art. The small oil pump 16 can draw out the lubricating oil stored in the oil storage tank 7 through the oil inlet pipe 15 and inject it into the delivery pipe 12 through the oil supply pipe 18, and finally enter the sleeve 10 to replace the lubricating oil. The operator can also rotate the rotating ring 9 on one side to drive the scraper 11 to rotate, which can clean the oil spillage at the connection between the drive shaft and the sleeve 10. At the same time, the scraper 11 can be removed through the threaded connecting rod 13 for easy subsequent cleaning.

[0024] The operator can rotate the corresponding top cover 4 to loosen the connection between the threaded connector 5 and the oil reservoir 7. After the top cover 4 is completely removed, the operator can fill the oil reservoir 7 with lubricating oil for easy replenishment.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-speed radial turbine expander, comprising a base (1), characterized in that, An expander body (2) is fixedly connected to the upper end of the base (1). A drive shaft is connected to one side port of the expander body (2). A sleeve (10) is provided on the side wall of the expander body (2). The drive shaft is located inside the sleeve (10). A connecting seat (6) is provided on one side of the expander body (2). A support device is fixedly connected to the lower end of the connecting seat (6). An oil storage tank (7) is fixedly connected to the side wall of the connecting seat (6). The oil storage tank (7) and the sleeve (10) are connected to each other through a conveying pipe (12). A top cover (4) is provided above the oil storage tank (7). The top cover (4) is connected to the oil storage tank (7) through a connecting device. An oil pumping device is fixedly connected to the inner wall of the top cover (4). A cleaning device is rotatably connected to the side wall of the sleeve (10) at the corresponding position.

2. The high-speed radial turbine expander according to claim 1, characterized in that, Multiple sealing gaskets are provided at the connection between the drive shaft and the sleeve (10).

3. A high-speed radial turbine expander according to claim 1, characterized in that, The support device includes two fixed frames (8) fixedly connected to the lower end of the connecting seat (6). Both fixed frames (8) are plate-shaped structures. The lower ends of both fixed frames (8) are fixedly connected to the upper end of the base (1). Both fixed frames (8) have through grooves through their side walls. The sleeve (10) passes through the two through grooves.

4. A high-speed radial turbine expander according to claim 1, characterized in that, The connecting device includes a threaded connector (5) fixedly connected to the lower end of the upper cover (4), and an internal thread is provided on the inner wall of the opening of the oil storage cylinder (7) at the corresponding position. The threaded connector (5) is threadedly connected to the opening of the oil storage cylinder (7).

5. A high-speed radial turbine expander according to claim 1, characterized in that, The oil pumping device includes a fixed rod (17) fixedly connected to the inner wall of the upper cover (4), a small oil pump (16) fixedly connected to the fixed rod (17), an oil inlet pipe (15) fixedly connected to the input end of the small oil pump (16), an oil supply pipe (18) fixedly connected to the output end of the small oil pump (16), the lower end of the oil supply pipe (18) is located inside the delivery pipe (12), an electrical wiring conduit (3) is electrically connected to the small oil pump (16), and the lower end of the oil inlet pipe (15) is located at the bottom of the oil storage tank (7).

6. A high-speed radial turbine expander according to claim 1, characterized in that, The cleaning device includes a rotating ring (9) rotatably connected to the side wall of the sleeve (10). A rotating groove is provided through the side wall of the sleeve (10) at the corresponding position. Multiple balls (20) are rotatably connected to the inner wall of the rotating ring (9). The multiple balls (20) roll in the rotating groove. A threaded groove is provided through the side wall of the rotating ring (9). A threaded connecting rod (13) is threadedly connected in the threaded groove. A scraper (11) is fixedly connected to the other end of the threaded connecting rod (13). The top of the scraper (11) is located at the outermost connection between the drive shaft and the sleeve (10).

7. A high-speed radial turbine expander according to claim 1, characterized in that, Rubber pads (19) are fixedly connected to the inner walls of both through slots.

8. A high-speed radial turbine expander according to claim 1, characterized in that, A drain pipe (14) is provided through the side wall of the sleeve (10).

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