Megawatt radial turbine expander rotor structure

Abstract

The utility model relates to a megawatt radial turbo expander rotor structure which comprises a main shaft body, a thrust ring is installed outside the main shaft body, an impeller body is connected outside the main shaft body in a sleeved mode, and an anti-falling machine is arranged outside the main shaft body. The anti-falling mechanism comprises a fixing ring, a clamping ring, a transverse rod, a clamping block, a baffle, a protective cover and a fixing screw, the main shaft body is sleeved with the fixing ring, the main shaft body is sleeved with the clamping ring, the transverse rod is connected to the left side of the clamping ring, and the clamping block is installed at the bottom of the transverse rod. According to the megawatt radial turbo expander rotor structure, firstly, the fixing ring is fixed outside the main shaft body, then the main shaft body is sleeved with the impeller body, the left side of the impeller body is attached to the fixing ring, at the moment, the main shaft body penetrates through the clamping ring, it is guaranteed that the clamping ring abuts against the impeller body, and meanwhile the clamping block enters the clamping groove; and finally, a protective cover is mounted outside the main shaft body and is stably fixed through fixing screws.

Description

Technical Field

[0001] This utility model relates to the field of turbine expander rotor technology, specifically a megawatt-class radial turbine expander rotor structure. Background Technology

[0002] The rotor is the rotating part of the turbine expander. At the same time, the rotor is also the supporting component for the rotation of the expander impeller and the component for transmitting mechanical energy outward. It not only needs to ensure the impeller rotates normally at high speed, but also needs to efficiently output energy downstream.

[0003] The rotor mainly consists of a rotating main shaft and impeller. Turbine expanders operate at very high speeds, which poses safety hazards to the impeller during actual operation. The impeller is prone to eccentricity or detachment during long-term use, making it very inconvenient to use. Therefore, a megawatt-level radial turbine expander rotor structure is proposed to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a megawatt-level radial turbine expander rotor structure, which has the advantage of more stable impeller fixing and solves the problems of impeller operation safety hazards in actual operation, and impeller eccentricity or detachment during long-term use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a megawatt-level radial turbine expander rotor structure, including a main shaft body, a thrust ring installed on the outside of the main shaft body, an impeller body sleeved on the outside of the main shaft body, and an anti-detachment mechanism provided on the outside of the main shaft body.

[0006] The anti-drop mechanism includes a fixing ring, a retaining ring, a crossbar, a locking block, a baffle, a protective cover, and fixing screws. A fixing ring is sleeved on the outside of the main spindle body, a retaining ring is sleeved on the outside of the main spindle body, a crossbar is connected to the left side of the retaining ring, a locking block is installed at the bottom of the crossbar, a baffle is installed on the outside of the retaining ring, a protective cover is installed on the outside of the main spindle body, and a fixing screw is installed on the right side of the protective cover.

[0007] Furthermore, the fixed ring, the retaining ring, and the impeller body are on the same longitudinal horizontal line, with the impeller body located between the retaining ring and the fixed ring.

[0008] Furthermore, the crossbar extends into the interior of the impeller body from the side away from the retaining ring, and a retaining groove is provided on the inner top of the main shaft body.

[0009] Furthermore, the side of the locking block away from the crossbar extends into the slot, and there are two baffles, both of which are connected to the right side of the locking ring.

[0010] Furthermore, the two baffles are located at the top and bottom of the spindle body, respectively, and the protective cover is fitted onto the outside of the spindle body.

[0011] Furthermore, the top and bottom of the protective cover are respectively fitted to the opposite sides of the two baffles, and the spindle body has a threaded groove inside, and the fixing screw passes through the protective cover and is threadedly connected to the threaded groove.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The rotor structure of this megawatt-class radial turbine expander drives the impeller body to rotate through the main shaft body. By setting up an anti-detachment mechanism, the various structures of the anti-detachment mechanism cooperate with each other to achieve the effect of facilitating the reinforcement of the impeller body and preventing the impeller body from falling off.

[0014] 2. The rotor structure of this megawatt-class radial turbine expander uses a fixing ring to initially position the impeller body, followed by a retaining ring to further lock the impeller body. A crossbar limits the retaining block, and when the retaining block enters the retaining groove, it further fixes the retaining ring, keeping it stable. A baffle limits the protective sleeve, and the protective cover is locked by rotating the fixing screw. This solves the safety hazards of impeller body operation in actual operation, and the problem that the impeller body is prone to eccentricity or detachment during long-term use. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the anti-fall-off mechanism of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0018] In the diagram: 1. Main shaft body, 2. Thrust ring, 3. Impeller body, 4. Anti-drop mechanism, 401. Fixing ring, 402. Snap ring, 403. Crossbar, 404. Snap block, 405. Baffle, 406. Protective cover, 407. Fixing screw, 5. Snap slot. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 A megawatt-level radial turboexpander rotor structure includes a main shaft body 1, a thrust ring 2 installed on the outside of the main shaft body 1, an impeller body 3 sleeved on the outside of the main shaft body 1, and an anti-detachment mechanism 4 provided on the outside of the main shaft body 1.

[0021] The anti-drop mechanism 4 includes a fixing ring 401, a retaining ring 402, a crossbar 403, a locking block 404, a baffle 405, a protective cover 406, and a fixing screw 407. The fixing ring 401 is sleeved on the outside of the main shaft body 1, the retaining ring 402 is sleeved on the outside of the main shaft body 1, the crossbar 403 is connected to the left side of the retaining ring 402, the locking block 404 is installed at the bottom of the crossbar 403, the baffle 405 is installed on the outside of the retaining ring 402, the protective cover 406 is installed on the outside of the main shaft body 1, and the fixing screw 407 is installed on the right side of the protective cover 406.

[0022] exist Figure 1 and Figure 2 In the middle, the fixed ring 401, the retaining ring 402 and the impeller body 3 are on the same longitudinal horizontal line. The impeller body 3 is located between the retaining ring 402 and the fixed ring 401. The impeller body 3 is driven to rotate by the main shaft body 1.

[0023] exist Figure 1 and Figure 2 In this design, by setting an anti-detachment mechanism 4, the various structures of the anti-detachment mechanism 4 can cooperate with each other to achieve the effect of reinforcing the impeller body 3 and preventing the impeller body 3 from falling off. The anti-detachment mechanism 4 includes a fixing ring 401, a retaining ring 402, a crossbar 403, a retaining block 404, a baffle 405, a protective cover 406, and a fixing screw 407. The side of the crossbar 403 away from the retaining ring 402 extends into the interior of the impeller body 3, and a groove 5 is provided on the inner top of the main shaft body 1.

[0024] exist Figure 1 and Figure 3 In the middle, the side of the locking block 404 away from the crossbar 403 extends into the slot 5. There are two baffles 405, and both baffles 405 are connected to the right side of the retaining ring 402. The locking block 404 is limited by the crossbar 403. When the locking block 404 enters the slot 5, it can further fix the retaining ring 402 and keep the retaining ring 402 stable.

[0025] exist Figure 2 and Figure 3 In the middle, two baffles 405 are located at the top and bottom of the spindle body 1 respectively, and the protective cover 406 is sleeved on the outside of the spindle body 1. The protective cover 406 is limited by setting the baffles 405, and the protective cover 406 is locked by rotating the fixing screw 407.

[0026] exist Figure 2 and Figure 3 In the middle, the top and bottom of the protective cover 405 are respectively attached to the opposite side of the two baffles 405. The main shaft body 1 has a threaded groove inside. The fixing screw 407 passes through the protective cover 407 and is threadedly connected to the threaded groove. It can be fixed and stabilized by fixing the screw 407, which solves the safety hazard of impeller body 3 in actual work, and the problem that impeller body 3 is prone to eccentricity or falling off during long-term use.

[0027] In summary, this megawatt-class radial turbine expander rotor structure uses a fixing ring 401 to initially position the impeller body 3, then a retaining ring 402 to further lock the impeller body 3, a crossbar 403 to limit the locking block 404, and when the locking block 404 enters the slot 5, it can further fix the retaining ring 402 and keep the retaining ring 402 stable. A baffle 405 limits the protective sleeve 406, and the protective cover 406 is locked by rotating the fixing screw 407. This solves the safety hazards of impeller body 3 operation in actual operation, and the problem that impeller body 3 is prone to eccentricity or detachment during long-term use.

[0028] Furthermore, during use, first fix the retaining ring 401 to the outside of the main shaft body 1, then put the impeller body 3 on the outside of the main shaft body 1 with its left side in contact with the retaining ring 401. At this time, pass the main shaft body 1 through the retaining ring 402, and ensure that the retaining ring 402 presses the impeller body 3 tightly. At the same time, the retaining block 404 enters the slot 5. Finally, install the protective cover 406 on the outside of the main shaft body 1 and fix it securely with the fixing screw 407. This solves the safety hazards of the impeller body 3 in actual operation, and the problem that the impeller body 3 is prone to eccentricity or falling off during long-term use.

[0029] The specific model and specifications of each device mentioned in this article need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] 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 rotor structure for a megawatt-class radial turboexpander, comprising a main shaft body (1), characterized in that: A thrust ring (2) is installed on the outside of the main shaft body (1), an impeller body (3) is sleeved on the outside of the main shaft body (1), and an anti-detachment mechanism (4) is provided on the outside of the main shaft body (1). The anti-dropping mechanism (4) includes a fixing ring (401), a retaining ring (402), a crossbar (403), a retaining block (404), a baffle (405), a protective cover (406), and a fixing screw (407). The fixing ring (401) is sleeved on the outside of the spindle body (1), and the retaining ring (402) is sleeved on the outside of the spindle body (1). The crossbar (403) is connected to the left side of the retaining ring (402), and the retaining block (404) is installed at the bottom of the crossbar (403). The baffle (405) is installed on the outside of the retaining ring (402), and the protective cover (406) is installed on the outside of the spindle body (1). The fixing screw (407) is installed on the right side of the protective cover (406).

2. The rotor structure of a megawatt-class radial turbine expander according to claim 1, characterized in that: The fixed ring (401), the retaining ring (402) and the impeller body (3) are on the same longitudinal horizontal line, and the impeller body (3) is located between the retaining ring (402) and the fixed ring (401).

3. The rotor structure of a megawatt-class radial turboexpander according to claim 1, characterized in that: The crossbar (403) extends into the interior of the impeller body (3) on the side away from the retaining ring (402), and a retaining groove (5) is provided on the inner top of the main shaft body (1).

4. The rotor structure of a megawatt-class radial turbine expander according to claim 3, characterized in that: The card block (404) extends into the slot (5) from the side away from the crossbar (403). There are two baffles (405), and both baffles (405) are connected to the right side of the retaining ring (402).

5. The rotor structure of a megawatt-class radial turboexpander according to claim 1, characterized in that: The two baffles (405) are located at the top and bottom of the spindle body (1) respectively, and the protective cover (406) is sleeved on the outside of the spindle body (1).

6. The rotor structure of a megawatt-class radial turbine expander according to claim 1, characterized in that: The top and bottom of the protective cover (406) are respectively attached to the opposite sides of the two baffles (405). The spindle body (1) has a threaded groove inside. The fixing screw (407) passes through the protective cover (406) and is threadedly connected to the threaded groove.

Images