Auxiliary connecting mechanism of expansion machine

Abstract

The utility model discloses an expansion machine auxiliary connecting mechanism in the technical field of expansion machines, which comprises an expansion machine body, the end part of the expansion machine body is provided with a flange connecting disc, and one side of the flange connecting disc is sleeved with a fixing assembly which is positioned on the outer wall of the expansion machine body and is used for fixing the expansion machine body when the expansion machine body is connected with external pipeline equipment. According to the utility model, through the arrangement of the positioning assembly, guiding and positioning can be carried out in the butt joint process of the flange at the end part of the external pipeline equipment and the connecting flange plate, so that the mounting holes between the flanges can be quickly aligned; the fixing assembly can be arranged on the outer wall of the expansion machine body in a sleeving mode and is locked and fixed, the supporting assembly can limit and support the outer wall of external pipeline equipment so that the supporting assembly and the expansion machine body can be located at the same horizontal position, meanwhile, the arranged adjusting assembly can adjust the supporting position of the supporting assembly, and follow-up connecting operation of an operator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of expanders, in particular to an auxiliary connecting mechanism for an expander. Background Art

[0002] An expander is a device that works on the principle of reducing the pressure of compressed gas during the expansion process and outputting mechanical work. When the expander is working, the gas passes through the inside of the expander, undergoes adiabatic expansion and performs work externally. During this process, the temperature of the gas will decrease, thereby generating cold. Expanders can be divided into two categories: piston expanders and turbine expanders. Piston expanders are suitable for occasions with high pressure ratios and small flow rates, while turbine expanders are suitable for occasions with large gas flow rates. In addition, expanders are also divided into two types: mechanical expanders and thermal expanders. Mechanical expanders include piston and screw expanders, while thermal expanders include jet, turbine expanders and enthalpy drop expanders. These different types of expanders are widely used in industry, aviation, petroleum and other fields according to their different working principles and expansion methods.

[0003] The inlet and outlet ends of the existing turbine expander are connected to the external pipeline equipment through flanges. When it is connected to the external pipeline equipment with a larger volume, it is usually necessary to use lifting equipment for suspension connection. However, when the lifting equipment is used for suspension connection, the mounting holes of the docking flanges need to be aligned one by one so that the bolts can be locked between the flanges one by one. In this process, due to the large volume of the external pipeline, manual adjustment of the mounting holes is no longer possible, and additional hydraulic press assistance is required, which is more troublesome to operate. When the docking flanges are tightened by bolts, relative displacement is likely to occur between them, resulting in unstable docking, making the connection inconvenient and not conducive to people's use. Therefore, those skilled in the art provide an expander auxiliary connection mechanism to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide an expander auxiliary connection mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an expander auxiliary connection mechanism, comprising an expander body, a flange connection plate installed at the end of the expander body, one side of the flange connection plate is sleeved with a fixing component located on the outer wall of the expander body for fixing it when connected to an external pipeline device, the side of the fixing component close to the flange connection plate is connected to a supporting component through an adjusting component for limiting support when the flange connection plate is connected to the external pipeline equipment, a clamping component for clamping the outer wall of the external pipe connection device is provided inside the supporting component, and a positioning component is provided on one side of the flange connection plate in the middle of the side wall of the fixing component for connecting and positioning the flange connection plate with the external pipeline equipment.

[0006] Preferably: the fixing assembly includes a fixed upper clamp and a fixed lower clamp, one side of the flange connection plate is provided with a fixed upper clamp and a fixed lower clamp located on the outer wall of the expander body, the fixed upper clamp and the fixed lower clamp are two identical semicircular shapes and are symmetrically distributed up and down, the adjacent ends of the fixed upper clamp and the fixed lower clamp are fixed together by bolts, the side of the fixed upper clamp and the fixed lower clamp close to the flange connection plate is connected to a support assembly through an adjusting assembly, and the middle of the side walls of the fixed upper clamp and the fixed lower clamp are provided with a positioning assembly located on one side of the flange connection plate.

[0007] Preferably: the adjusting assembly includes a mounting block, an adjusting screw and a moving block, the side wall ends of the fixed upper clamp and the fixed lower clamp are welded with mounting blocks, the side of the mounting block close to the flange connecting plate is rotatably connected to the adjusting screw via a bearing seat, the surface of the adjusting screw is rotatably connected to the moving block via a thread, a rotating handle located at the end of the adjusting screw is welded on the side of the moving block away from the mounting block, and the inner wall close to the moving block is connected to a support assembly.

[0008] Preferably, the adjusting screws are provided in four groups and are distributed in a rectangular shape.

[0009] Preferably: the support assembly includes an upper support clamp and a lower support clamp, the inner walls of the movable block adjacent to each other are respectively welded to the side walls of the upper support clamp and the lower support clamp, the upper support clamp and the lower support clamp are two identical semicircular shapes and are symmetrically distributed up and down, the ends of the upper support clamp and the lower support clamp adjacent to each other are fixed together by bolts, and a clamping assembly is provided inside the upper support clamp and the lower support clamp.

[0010] Preferably: the clamping assembly includes a rotating screw and a clamping plate, the inner walls of the support upper clamp and the support lower clamp are symmetrically provided with movable grooves, the inside of the movable grooves are slidably connected with clamping plates, the ends of the clamping plates away from each other are rotatably connected with the rotating screw located inside the movable groove through the bearing seat, the other ends of the rotating screws extend to the outside of the support upper clamp and the support lower clamp and are welded with a rotating rod, and the rotating screws are rotatably connected to the inside of the support upper clamp and the support lower clamp through threads.

[0011] Preferably: the positioning assembly includes a positioning rod, a spring and a movable rod, the middle part of the side walls of the fixed upper clamp and the fixed lower clamp are welded with a positioning rod located on one side of the flange connecting plate, the side of the flange connecting plate is provided with positioning holes distributed in a circular pattern, the outer walls of the positioning rods are slidably inserted into the positioning holes, the inner wall end of the positioning rod is welded with a spring, the other end of the spring is welded to the bottom end of the movable rod, and the top end of the movable rod extends to the outside of the positioning rod and passes through the positioning hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the expander auxiliary connection mechanism is provided with a positioning component, which can guide and position the end flange of the external pipeline equipment during the docking process with the connecting flange, so that the mounting holes between the flanges can be quickly aligned without the need to use an additional hydraulic press for auxiliary alignment, thereby improving practicality.

[0014] 2. In the utility model, the auxiliary connection mechanism of the expander is provided with a fixing component and a supporting component that work together. The fixing component can be sleeved on the outer wall of the expander body and locked and fixed. The supporting component can provide limited support to the outer wall of the external pipeline equipment so that it is at the same horizontal position as the expander body. At the same time, the adjusting component can adjust the supporting position of the supporting component to facilitate the operator's subsequent connection operations, thereby preventing relative displacement from occurring when the bolts are tightened between the docking flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the overall structure of the utility model;

[0017] Figure 3 It is an enlarged cross-sectional view of the overall structure of the positioning assembly of the utility model;

[0018] Figure 4 for Figure 2 A is an enlarged view of the middle image.

[0019] In the figure: 1, expander body; 2, flange connection plate; 8, movable groove; 9, positioning hole; 31, fixed upper clamp; 32, fixed lower clamp; 41, mounting block; 42, adjusting screw; 43, moving block; 44, rotating handle; 51, supporting upper clamp; 52, supporting lower clamp; 61, clamping plate; 62, rotating screw; 63, rotating rod; 71, positioning rod; 72, spring; 73, movable rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 to Figure 4 In an embodiment of the utility model, an expander auxiliary connection mechanism includes an expander body 1, a flange connection plate 2 is installed at the end of the expander body 1, one side of the flange connection plate 2 is sleeved with a fixing component located on the outer wall of the expander body 1 for fixing it when connected to an external pipeline device, the fixing component includes a fixed upper clamp 31 and a fixed lower clamp 32, one side of the flange connection plate 2 is sleeved with a fixed upper clamp 31 and a fixed lower clamp 32 located on the outer wall of the expander body 1, the fixed upper clamp 31 and the fixed lower clamp 32 are two identical semicircular shapes and are symmetrically distributed up and down, and the adjacent ends of the fixed upper clamp 31 and the fixed lower clamp 32 are fixed together by bolts.

[0022] During use, when the end of the expander body 1 is to be connected to the external pipeline equipment through the flange connection plate 2, the external pipeline equipment is first suspended by the lifting equipment so that it moves close to the flange connection plate 2 at the end of the expander body 1. When the external pipeline equipment is moved to a suitable installation distance from the flange connection plate 2, the operator sequentially sets the fixed upper clamp 31 and the fixed lower clamp 32 on the outer wall of the expander body 1 respectively, and then fixes the adjacent ends of the fixed upper clamp 31 and the fixed lower clamp 32 together by bolts, so that they are stably clamped on the outer wall of the expander body 1.

[0023] The upper fixed clamp 31 and the lower fixed clamp 32 are connected to the flange connection plate 2 on one side through an adjustment component, and the support component is used for limiting support when the external pipeline equipment is connected to the flange connection plate 2. The adjustment component includes a mounting block 41, an adjusting screw 42 and a moving block 43. The side wall ends of the upper fixed clamp 31 and the lower fixed clamp 32 are welded with mounting blocks 41. The side of the mounting block 41 close to the flange connection plate 2 is rotatably connected to the adjusting screw 42 through a bearing seat. The adjusting screw 42 is provided with four groups and is distributed in a rectangular shape. The surface of the adjusting screw 42 is rotatably connected to A moving block 43, a rotating handle 44 located at the end of the adjusting screw 42 is welded on the side of the moving block 43 away from the mounting block 41, and the inner wall close to the moving block 43 is connected with a supporting assembly, and the supporting assembly includes a supporting upper clamp 51 and a supporting lower clamp 52, and the inner walls close to the moving block 43 are respectively welded on the side walls of the supporting upper clamp 51 and the supporting lower clamp 52, and the supporting upper clamp 51 and the supporting lower clamp 52 are two identical semicircular shapes and are symmetrically distributed up and down, and the adjacent ends of the supporting upper clamp 51 and the supporting lower clamp 52 are fixed together by bolts.

[0024] When in use, after the upper fixing clamp 31 and the lower fixing clamp 32 are fixed to the outer wall of the expander body 1, the ends of the upper supporting clamp 51 and the lower supporting clamp 52 that are close to each other are fixed together by bolts, so that the inner walls of the upper supporting clamp 51 and the lower supporting clamp 52 can limit the outer wall of the external pipeline equipment so that it can only move forward and backward or rotate but not left and right. Furthermore, the cooperation between the upper supporting clamp 51 and the lower supporting clamp 52 can make the pipeline flange at the end of the external pipeline equipment and the flange connection plate 2 at the end of the expander body 1 be at the same horizontal position. The arrangement is convenient for subsequent connection operations, and at the same time, the external pipeline equipment can be lifted and supported to facilitate the suspension of the lifting equipment, further making the subsequent connection operations more convenient. When the upper support clamp 51 and the lower support clamp 52 are fixed, the adjusting screw 42 can be driven to rotate by rotating the handle 44, so that the moving block 43 drives the upper support clamp 51 and the lower support clamp 52 to move toward or away from the flange connection plate 2, and then the outer wall of the external pipeline equipment can be changed in the adjustment range. The support position is convenient for the operator's subsequent installation operations.

[0025] The middle of the side wall of the fixed upper clamp 31 and the fixed lower clamp 32 are both provided with a positioning assembly located on one side of the flange connection plate 2 for connecting and positioning the flange connection plate 2 with the external pipeline equipment. The positioning assembly includes a positioning rod 71, a spring 72 and a movable rod 73. The middle of the side wall of the fixed upper clamp 31 and the fixed lower clamp 32 are both welded with a positioning rod 71 located on one side of the flange connection plate 2. The side of the flange connection plate 2 is provided with positioning holes 9 distributed in a circumference. The outer wall of the positioning rod 71 is slidably inserted into the positioning hole 9. A spring 72 is welded to the inner wall end of the positioning rod 71, and the other end of the spring 72 is welded to the bottom end of the movable rod 73. The top end of the movable rod 73 extends to the outside of the positioning rod 71 and passes through the positioning hole 9. The movable rod 73 is slidably connected to the positioning rod 71 by the spring 72, which can facilitate the movable rod 73 to be retracted into the positioning rod 71 by external force. At the same time, when the force applied to the movable rod 73 is released, it can slide out of the positioning rod 71 through the elastic force of the spring 72 to restore the initial position, which is convenient for subsequent positioning operations.

[0026] When in use, after the pipe flange at the end of the external pipe equipment and the flange connecting plate 2 at the end of the expander body 1 are at the same horizontal position by supporting the upper clamp 51 and the lower clamp 52, the flange at the end of the external pipe equipment is moved toward the flange connecting plate 2 by the lifting equipment, and the movable rod 73 is aligned with the mounting hole on the end flange of the external pipe equipment, and then the external pipe equipment is continuously moved so that the mounting hole on the end flange is sleeved on the movable rod 73, so that the position of the end flange of the external pipe equipment is limited by the movable rod 73, and then the positioning hole 9 on the side of the flange connecting plate 2 is aligned with the mounting hole on the end flange of the external pipe equipment, and there is no need to continuously adjust the lifting angle by the lifting equipment to align the flange aperture when the external pipe equipment is connected to the expander, so that the external pipe equipment can be easily connected to the expander body 1, thereby improving practicality.

[0027] The inner parts of the upper support clamp 51 and the lower support clamp 52 are provided with a clamping assembly for clamping the outer wall of the external pipe device, and the clamping assembly includes a clamping plate 61 and a rotating screw 62. The inner walls of the upper support clamp 51 and the lower support clamp 52 are symmetrically provided with movable grooves 8, and the inner parts of the movable grooves 8 are slidably connected with the clamping plates 61. The ends of the clamping plates 61 that are away from each other are rotatably connected with the rotating screw 62 located in the movable groove 8 through the bearing seat, and the other ends of the rotating screw 62 extend to the outer sides of the upper support clamp 51 and the lower support clamp 52 and are welded with a rotating rod. 63, and the rotating screw 62 is rotatably connected to the inner parts of the supporting upper clamp 51 and the supporting lower clamp 52 through threads. When in use, when the positioning hole 9 on the side of the flange connecting plate 2 is aligned with the mounting hole on the end flange of the external pipeline equipment through the movable rod 73, the rotating screw 62 can be rotated by rotating the rotating rod 63, so that the clamping plate 61 moves toward the outer wall close to the external pipeline equipment, and then the external pipeline equipment is fixed and clamped again. In fact, it will not move easily, which is convenient for connecting the expander body 1 with the external pipeline equipment.

[0028] Working principle: When preparing to use the expander auxiliary connection mechanism, first suspend the external pipeline equipment through the lifting equipment to move it close to the flange connection plate 2 at the end of the expander body 1. After moving to a suitable installation distance, the operator sets the fixed upper clamp 31 and the fixed lower clamp 32 as well as the supporting upper clamp 51 and the supporting lower clamp 52 on the expander body 1 and the outer wall of the external pipeline equipment, and then fixes their ends with bolts. When the supporting upper clamp 51 and the supporting lower clamp 52 are fixed together, they do not need to be installed too tightly, so that the outer wall of the external pipeline equipment is between its inner wall. There is room for movement, and then the rotating handle 44 is rotated to make the adjustment component drive the supporting upper clamp 51 and the supporting lower clamp 52 to perform translational movement, so that the supporting position of the outer wall of the external pipeline equipment can be changed within the adjustment range. After the adjustment, the lifting equipment is controlled again to drive the flange at the end of the external pipeline equipment to move closer to the flange connecting plate 2, so that the movable rod 73 is inserted into the mounting hole on the flange at the end of the external pipeline equipment, and then the rotating rod 63 is rotated to drive the clamping plate 61 to fix and clamp the outer wall of the external pipeline equipment through the rotating screw 62, so that the external pipeline equipment can be easily connected to the expander body 1 for easy use.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An expander auxiliary connection mechanism, comprising an expander body (1), Features: A flange connection plate (2) is installed at the end of the expander body (1), and one side of the flange connection plate (2) is sleeved with a fixing component located on the outer wall of the expander body (1) for fixing it when connected to an external pipeline device. The side of the fixing component close to the flange connection plate (2) is connected to a support component for limiting support when the flange connection plate (2) is connected to the external pipeline device through an adjustment component. A clamping component for clamping the outer wall of the external pipe connection device is provided inside the support component. A positioning component is provided on the middle part of the side wall of the fixing component, which is located on one side of the flange connection plate (2) and is used to connect and position the flange connection plate (2) with the external pipeline device.

2. An expander auxiliary connection mechanism according to claim 1, Features: The fixing assembly comprises a fixing upper clamp (31) and a fixing lower clamp (32), one side of the flange connection plate (2) is sleeved with the fixing upper clamp (31) and the fixing lower clamp (32) located on the outer wall of the expander body (1), the fixing upper clamp (31) and the fixing lower clamp (32) are two identical semicircular shapes and are symmetrically distributed up and down, the ends of the fixing upper clamp (31) and the fixing lower clamp (32) close to each other are fixedly connected together by bolts, the sides of the fixing upper clamp (31) and the fixing lower clamp (32) close to the flange connection plate (2) are connected to the supporting assembly through the adjusting assembly, and the middle parts of the side walls of the fixing upper clamp (31) and the fixing lower clamp (32) are provided with a positioning assembly located on one side of the flange connection plate (2).

3. An expander auxiliary connection mechanism according to claim 2, Features: The adjustment assembly comprises a mounting block (41), an adjustment screw (42) and a moving block (43); the side wall ends of the fixed upper clamp (31) and the fixed lower clamp (32) are both welded with the mounting block (41); the side of the mounting block (41) close to the flange connection plate (2) is rotatably connected to the adjustment screw (42) via a bearing seat; the surface of the adjustment screw (42) is rotatably connected to the moving block (43) via a thread; the side of the moving block (43) away from the mounting block (41) is welded with a rotating handle (44) located at the end of the adjustment screw (42); and the inner wall close to the moving block (43) is connected to the support assembly.

4. An expander auxiliary connection mechanism according to claim 3, Features: The adjusting screws (42) are provided in four groups and are distributed in a rectangular shape.

5. An expander auxiliary connection mechanism according to claim 3, Features: The support assembly comprises an upper support clamp (51) and a lower support clamp (52); the inner walls of the moving block (43) adjacent to each other are respectively welded to the side walls of the upper support clamp (51) and the lower support clamp (52); the upper support clamp (51) and the lower support clamp (52) are two identical semicircular shapes and are symmetrically distributed up and down; the ends of the upper support clamp (51) and the lower support clamp (52) adjacent to each other are fixedly connected together by bolts; and a clamping assembly is provided inside the upper support clamp (51) and the lower support clamp (52).

6. An expander auxiliary connection mechanism according to claim 5, Features: The clamping assembly comprises a clamping plate (61) and a rotating screw (62); the inner walls of the supporting upper clamp (51) and the supporting lower clamp (52) are symmetrically provided with movable grooves (8); the inside of the movable grooves (8) are slidably connected with the clamping plate (61); the ends of the clamping plates (61) which are away from each other are rotatably connected with the rotating screw (62) located inside the movable groove (8) through a bearing seat; the other ends of the rotating screw (62) extend to the outside of the supporting upper clamp (51) and the supporting lower clamp (52) and are welded with a rotating rod (63); and the rotating screw (62) is rotatably connected to the inside of the supporting upper clamp (51) and the supporting lower clamp (52) through a thread.

7. An expander auxiliary connection mechanism according to claim 2, Features: The positioning assembly comprises a positioning rod (71), a spring (72) and a movable rod (73); the middle parts of the side walls of the fixed upper clamp (31) and the fixed lower clamp (32) are welded with a positioning rod (71) located on one side of the flange connection plate (2); the side of the flange connection plate (2) is provided with positioning holes (9) distributed in a circular pattern; the outer walls of the positioning rods (71) are slidably inserted into the positioning holes (9); the inner wall ends of the positioning rods (71) are welded with a spring (72); the other end of the spring (72) is welded to the bottom end of the movable rod (73); the top end of the movable rod (73) extends to the outside of the positioning rod (71) and passes through the positioning hole (9).

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