An energy-saving centrifugal compressor sealing device

Abstract

The present invention discloses an energy-saving centrifugal compressor sealing device, which includes a first pipeline. A second pipeline is arranged on the side of the first pipeline. An auxiliary mechanism is arranged between the first pipeline and the second pipeline. The first pipeline is provided with a protection mechanism for externally shielding the connection between the first pipeline and the second pipeline. A locking mechanism is arranged at the end of the first pipeline. The auxiliary mechanism includes a bearing cylinder, an auxiliary ring and a fitting ring. The bearing cylinder is located on the side of the first pipeline. Insertion cylinders are fixedly connected to both the side and the side of the inner wall of the bearing cylinder. By means of the cooperation of the bearing cylinder, the insertion cylinder, the auxiliary ring, the fitting ring, the extrusion ring and the anti-detachment plate, the insertion cylinder positions the connection between the first pipeline and the second pipeline, the limiting plate limits the relative positions of the fixing plate and the bearing cylinder, and the bearing cylinder and the auxiliary ring seal and protect the auxiliary ring and the fitting ring, which is beneficial to the sealing and auxiliary protection of the connection between the first pipeline and the second pipeline.

Description

Technical Field

[0001] The present invention relates to the field of seals for energy-saving centrifugal compressors, and particularly to a seal device for an energy-saving centrifugal compressor. Background Art

[0002] An energy-saving centrifugal compressor is also known as a scroll compressor or a turbine compressor. An energy-saving centrifugal compressor is a type of compressor. A centrifugal compressor can usually make the gas obtain a relatively high pressure, with a large throughput, and the centrifugal compressor has a high efficiency. A centrifugal compressor usually belongs to a blade-type rotating machine. The working mode of a centrifugal compressor is usually that after the gas enters the impeller of the centrifugal compressor, under the action of the impeller blades, while rotating at a high speed with the impeller, it flows towards the impeller outlet under the action of the rotating centrifugal force and is subjected to the pressure-increasing action of the impeller, so that both the pressure energy and the kinetic energy of the gas are increased. Subsequently, in the diffuser passage, this part of the kinetic energy is converted into static pressure energy, thereby further increasing the gas pressure.

[0003] When a centrifugal compressor is in use, connections between pipelines are usually made. The prior art usually uses the method of flange plates and bolts for butt-joint. In order to increase the sealing performance between pipelines, a sealing ring is usually placed between the flange plates, and the adjacent flange plates squeeze the sealing ring to seal the adjacent pipelines.

[0004] However, when the externally connected pipelines are in use, and there are various types of centrifugal compressors. After the sealing ring is used in the external environment for a long time, it will age, which will affect the sealing performance between the adjacent pipelines. Therefore, it is not convenient for the centrifugal compressor to assist in sealing between the adjacent pipelines, and there are certain limitations. Summary of the Invention

[0005] The purpose of the present invention is to provide a seal device for an energy-saving centrifugal compressor to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A seal device for an energy-saving centrifugal compressor, comprising:

[0007] A first pipeline, and a second pipeline is provided on the side of the first pipeline.

[0008] An auxiliary mechanism is provided between the first pipeline and the second pipeline. A protection mechanism for externally shielding the connection between the first pipeline and the second pipeline is provided at the end of the first pipeline. A locking mechanism for locking the connection position of the first pipeline and the second pipeline is provided at the end of the first pipeline. The auxiliary mechanism includes:

[0009] The bearing cylinder is located on the side of the first pipeline. On the side and the side of the inner wall of the bearing cylinder, there are inserted cylinders fixedly connected. Adjacent inserted cylinders are respectively slidably inserted and connected with the inner cavities of the first pipeline and the second pipeline.

[0010] The auxiliary ring and the fitting ring are respectively fixedly inserted and connected to the outside of the adjacent inserted cylinders.

[0011] Preferably, the auxiliary mechanism further includes:

[0012] The extrusion ring, the inner cavity of the extrusion ring is respectively fixedly inserted and connected to the outside of the adjacent inserted cylinders, and the outer wall of the extrusion ring is in fit with the inner walls of the first pipeline and the second pipeline.

[0013] The fixing plate, a first sliding groove is provided on the side of the bearing cylinder, the fixing plate is slidably inserted and connected with the inner cavity of the first sliding groove, a through groove is provided on the side of the bearing cylinder, and the inner cavity of the through groove is communicated with the inner cavity of the inserted cylinder.

[0014] The limiting plate, a second sliding groove is provided on the outside of the bearing cylinder, a first clamping groove is provided on the side of the fixing plate, and the limiting plate is slidably inserted and connected with the inner cavities of the second sliding groove and the first clamping groove.

[0015] Preferably, a connecting plate is fixedly connected to the side of the limiting plate, a positioning plate is fixedly connected to the side of the connecting plate, a positioning groove is provided on the outer wall of the bearing cylinder, the positioning plate is slidably inserted and connected with the inner cavity of the positioning groove, a third sliding groove is provided on the side of the bearing cylinder, an anti - detachment plate is slidably arranged in the inner cavity of the third sliding groove, a second clamping groove is provided on the side of the positioning plate, and the anti - detachment plate is slidably inserted and connected with the inner cavity of the second clamping groove.

[0016] Preferably, a protection cylinder is fixedly connected to the side of the bearing cylinder, the auxiliary ring is located inside the protection cylinder, an extrusion cylinder is slidably inserted and connected to the outside of the protection cylinder, and the side of the extrusion cylinder is in fit with the side of the anti - detachment plate.

[0017] Preferably, the locking mechanism includes:

[0018] The fixed seat, a connecting seat is arranged on the side of the fixed seat.

[0019] The first flange, the outer wall of the first pipeline is fixedly inserted and connected to the middle of the first flange, and the side of the first flange is fixedly connected to the fixing plate.

[0020] The second flange, the outer wall of the second pipeline is fixedly inserted and connected to the middle of the second flange, and the side of the second flange is fixedly connected to the extrusion cylinder.

[0021] Preferably, the side of the fixed seat is fixedly connected to the second flange, the side of the connecting seat is fixedly connected to the first flange, through holes are provided on the sides of both the first flange and the second flange, a threaded column is slidably inserted into the fixed seat and the connecting seat in a threaded manner, the threaded column is slidably inserted into the inner cavity of the through hole, a locking ring is threadedly inserted on the outer wall of the threaded column, and positioning holes are provided on the outer wall of the locking ring.

[0022] Preferably, the protection mechanism includes:

[0023] A protection frame, semi-circular grooves are symmetrically provided on the side of the protection frame, and the first pipe and the second pipe are respectively slidably inserted into the inner cavity of the semi-circular groove.

[0024] A semi-cylinder, the side of the semi-cylinder is fixedly connected to the protection frame, and the first pipe and the second pipe are slidably inserted into the inner cavity of the semi-cylinder.

[0025] A limiting rod, one end of the limiting rod is fixedly connected to the side of the inner wall of the protection frame, and the other end of the limiting rod is slidably inserted into the inner cavity of the positioning hole.

[0026] Preferably, the protection mechanism further includes:

[0027] A square plate, the side of the square plate is fixedly connected to one of the protection frames, and an assembly plate is fixedly connected to the side of the square plate.

[0028] An installation frame, the side of the installation frame is fixedly connected to the other protection frame, the assembly plate is slidably inserted into the inner cavity of the installation frame, a fourth chute is provided on the side of the installation frame, a third card slot is provided on the side of the assembly plate, an installation plate is arranged in the inner cavity of the fourth chute, the installation plate is slidably inserted into the inner cavity of the third card slot, and a pulling plate is fixedly connected to the side of the installation plate.

[0029] Preferably, positioning columns are fixedly connected to the side of the inner wall of the protection frame, positioning cylinders are slidably inserted on the outer walls of the positioning columns, the outer walls of the positioning cylinders are fixedly connected to the outer walls of the first flange and the second flange, a square frame is fixedly connected to the front of the installation frame, and a connecting rod is slidably inserted into the inner cavity of the square frame, and an annular plate is threadedly inserted at one end of the connecting rod.

[0030] Preferably, a bearing frame is fixedly inserted through the side of the square frame, the connecting rod is slidably inserted into the inner cavity of the bearing frame, a spring for driving the annular plate to move vertically is sleeved on the outer wall of the connecting rod, one end of the spring is in contact with the annular plate, and the other end of the spring is in contact with the bearing frame.

[0031] The technical effects and advantages of the present invention:

[0032] (1) The present invention utilizes a setting method in which a bearing cylinder, an insertion cylinder, an auxiliary ring, a fitting ring, a pressing ring, a fixing plate, a limiting plate, a connecting plate, a positioning plate and an anti-detachment plate cooperate with each other. The insertion cylinder positions the connection of the first pipeline and the second pipeline. The fitting ring and the pressing ring seal between the pressing cylinder and the first pipeline and the second pipeline. The limiting plate defines the relative positions of the fixing plate and the bearing cylinder. The bearing cylinder and the protection cylinder seal and protect the auxiliary ring and the fitting ring. Thereby, it is beneficial to seal and assist in protecting the connection of the first pipeline and the second pipeline, facilitating the increase of the sealing life between the first pipeline and the second pipeline to enhance the sealing stability.

[0033] (2) The present invention utilizes a setting method in which a fixing seat, a connecting seat, a first flange, a second flange, a threaded column and a locking ring cooperate with each other. The fixing seat and the connecting seat dock the first flange and the second flange. The threaded column connects the first flange, the second flange, the fixing seat and the connecting seat in series. The locking ring locks the threaded column. Thereby, it is beneficial to fit and connect the first pipeline and the second pipeline, facilitating the increase of the stability of the use of the auxiliary ring and the pressing ring.

[0034] (3) The present invention utilizes a setting method in which a protection frame, a semi-cylinder, a limiting rod, a square plate, a mounting frame, an assembly plate, a mounting plate and a pulling plate cooperate with each other. The protection frame covers the connection part of the first pipeline and the second pipeline. The limiting rod limits the position of the locking ring. Thereby, it is beneficial to enhance the safety of the connection of the first pipeline and the second pipeline, and at the same time, it is beneficial to protect the locking ring from self-rotation. Brief Description of the Drawings

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 It is a front view structure schematic diagram of the first flange of the present invention.

[0037] Figure 3 It is a front sectional view structure schematic diagram of the bearing cylinder of the present invention.

[0038] Figure 4 It is a side sectional view structure schematic diagram of the protection frame of the present invention.

[0039] Figure 5 It is a side sectional view structure schematic diagram of the mounting frame of the present invention.

[0040] Figure 6 It is a side sectional view structure schematic diagram of the positioning cylinder of the present invention.

[0041] In the figure: 1. First pipeline. 2. Second pipeline. 3. Auxiliary mechanism. 31. Bearing cylinder. 32. Inserting cylinder. 33. Auxiliary ring. 34. Fitting ring. 35. Extrusion ring. 36. Fixed plate. 37. Limiting plate. 38. Connecting plate. 39. Positioning plate. 310. Anti - detachment plate. 311. Extrusion cylinder. 312. Protection cylinder. 4. Locking mechanism. 41. Fixed seat. 42. Connecting seat. 43. First flange. 44. Second flange. 45. Threaded column. 46. Locking ring. 5. Protection mechanism. 51. Protection frame. 52. Half cylinder. 53. Limiting rod. 54. Square plate. 55. Installation frame. 56. Assembly plate. 57. Installation plate. 58. Pulling plate. 59. Square frame. 510. Connecting rod. 511. Annular plate. 512. Spring. 513. Bearing frame. 514. Positioning cylinder. 515. Positioning column. Specific implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0043] The present invention provides an energy - saving centrifugal compressor sealing device as Figure 1-6 shown, which includes a first pipeline 1. A second pipeline 2 is arranged on the side of the first pipeline 1. The first pipeline 1 can be the air outlet pipeline of the energy - saving centrifugal compressor, which is convenient for connecting with the external second pipeline 2.

[0044] Furthermore, an auxiliary mechanism 3 is provided between the first pipeline 1 and the second pipeline 2. A protection mechanism 5 for externally shielding the connection between the first pipeline 1 and the second pipeline 2 is provided at the end of the first pipeline 1. A locking mechanism 4 for locking the connection position of the first pipeline 1 and the second pipeline 2 is provided at the end of the first pipeline 1. The auxiliary mechanism 3 includes a bearing cylinder 31, an auxiliary ring 33, a fitting ring 34, a pressing ring 35, a fixing plate 36 and a limiting plate 37. The bearing cylinder 31 is beneficial for supporting the insertion cylinder 32, and at the same time is beneficial for supporting and installing the auxiliary ring 33, the pressing ring 35 and the fitting ring 34. The auxiliary ring 33, the pressing ring 35 and the fitting ring 34 are all made of sealing ring material. The auxiliary ring 33, the fitting ring 34 and the pressing ring 35 are beneficial for sealing the inner walls of the insertion cylinder 32, the first pipeline 1 and the second pipeline 2, and thus are beneficial for sealing between the first pipeline 1 and the second pipeline 2. The fixing plate 36 is beneficial for positioning the installation of the bearing cylinder 31. The limiting plate 37 is beneficial for limiting the relative positions of the fixing plate 36 and the bearing cylinder 31, and thus is beneficial for installing and disassembling the bearing cylinder 31 to remove and replace the auxiliary ring 33, the fitting ring 34 and the pressing ring 35. The bearing cylinder 31 is located at the side of the first pipeline 1. Insertion cylinders 32 are fixedly connected to the side and the side of the inner wall of the bearing cylinder 31. The adjacent insertion cylinders 32 are respectively slidably inserted into the inner cavities of the first pipeline 1 and the second pipeline 2. The auxiliary ring 33 and the fitting ring 34 are respectively fixedly inserted into the outside of the adjacent insertion cylinders 32. The inner cavity of the pressing ring 35 is respectively fixedly inserted into the outside of the adjacent insertion cylinders 32. The outer wall of the pressing ring 35 is in contact with the inner walls of the first pipeline 1 and the second pipeline 2. A first sliding groove is provided on the side of the bearing cylinder 31. The fixing plate 36 is slidably inserted into the inner cavity of the first sliding groove. A through groove is provided on the side of the bearing cylinder 31. The inner cavity of the through groove is communicated with the inner cavity of the insertion cylinder 32. A second sliding groove is provided on the outside of the bearing cylinder 31. A first clamping groove is provided on the side of the fixing plate 36. The limiting plate 37 is slidably inserted into the inner cavities of the second sliding groove and the first clamping groove. A connecting plate 38 is fixedly connected to the side of the limiting plate 37, which is beneficial for pulling the positioning plate 39 and the limiting plate 37 to move. A positioning plate 39 is fixedly connected to the side of the connecting plate 38, which is beneficial for connecting and supporting the connecting plate 38. A positioning groove is provided on the outer wall of the bearing cylinder 31. The positioning plate 39 is slidably inserted into the inner cavity of the positioning groove. A third sliding groove is provided on the side of the bearing cylinder 31. An anti-detachment plate 310 is slidably arranged in the inner cavity of the third sliding groove, which is beneficial for limiting the position of the positioning plate 39, and thus avoiding the random sliding of the limiting plate 37. A second clamping groove is provided on the side of the positioning plate 39. The anti-detachment plate 310 is slidably inserted into the inner cavity of the second clamping groove. A protection cylinder 312 is fixedly connected to the side of the bearing cylinder 31, which is beneficial for sealing and shielding the auxiliary ring 33, and thus avoiding the influence of the external environment on the auxiliary ring 33. The auxiliary ring 33 is located inside the protection cylinder 312. A pressing cylinder 311 is slidably inserted into the outside of the protection cylinder 312, which is beneficial for sealing the protection cylinder 312.Meanwhile, it is beneficial to extrude and limit the anti - detachment plate 310 to avoid random sliding of the anti - detachment plate 310. The side of the extrusion cylinder 311 is attached to the side of the anti - detachment plate 310.

[0045] Specifically, the locking mechanism 4 includes a fixed seat 41, a first flange 43 and a second flange 44. The fixed seat 41 and the connecting seat 42 are beneficial for connecting with the threaded column 45, and then it is beneficial for docking the first flange 43 and the second flange 44. A connecting seat 42 is arranged on the side of the fixed seat 41. The outer wall of the first pipe 1 is fixedly inserted through the middle of the first flange 43. The side of the first flange 43 is fixedly connected to the fixing plate 36. The outer wall of the second pipe 2 is fixedly inserted through the middle of the second flange 44. The side of the second flange 44 is fixedly connected to the extrusion cylinder 311. The side of the fixed seat 41 is fixedly connected to the second flange 44. The side of the connecting seat 42 is fixedly connected to the first flange 43. Through holes are formed in the sides of both the first flange 43 and the second flange 44. A threaded column 45 is slidably and threadedly inserted through the interiors of the fixed seat 41 and the connecting seat 42, which is beneficial for serially connecting the first flange 43 and the second flange 44, facilitating locking and fixing of the first flange 43 and the second flange 44, and then it is beneficial for closely installing the first pipe 1 and the second pipe 2. The threaded column 45 is slidably inserted through the inner cavity of the through hole. A locking ring 46 is threadedly inserted on the outer wall of the threaded column 45, which is beneficial for locking and fixing the threaded column 45. Positioning holes are formed in the outer wall of the locking ring 46. The rotation position of the locking ring 46 can adopt the method of scribing alignment. When the locking ring 46 just locks the threaded column 45, and referring to the scribed line position, the positioning holes are in a position corresponding to the limiting rod 53.

[0046] Specifically, the protection mechanism 5 includes a protection frame 51, a semi-cylinder 52, a limiting rod 53, a square plate 54, and a mounting frame 55. The protection frame 51 is beneficial for externally shielding the connection between the first pipeline 1 and the second pipeline 2, facilitating the sealing protection of the first pipeline 1 and the second pipeline 2. Semi-circular grooves are symmetrically formed on the side of the protection frame 51, and the first pipeline 1 and the second pipeline 2 are respectively slidably inserted into the inner cavity of the semi-circular grooves. The side of the semi-cylinder 52 is fixedly connected to the protection frame 51, and the first pipeline 1 and the second pipeline 2 are slidably inserted into the inner cavity of the semi-cylinder 52. One end of the limiting rod 53 is fixedly connected to the side of the inner wall of the protection frame 51, and the other end of the limiting rod 53 is slidably inserted into the inner cavity of the positioning hole. The side of the square plate 54 is fixedly connected to one of the protection frames 51, and an assembly plate 56 is fixedly connected to the side of the square plate 54, which is beneficial for connecting the square plate 54 to the mounting frame 55, and thus is beneficial for positioning and installing the two protection frames 51. The side of the mounting frame 55 is fixedly connected to the other protection frame 51, and the assembly plate 56 is slidably inserted into the inner cavity of the mounting frame 55. A fourth chute is formed on the side of the mounting frame 55, and a third card slot is formed on the side of the assembly plate 56. An installation plate 57 is arranged in the inner cavity of the fourth chute, which is beneficial for limiting the relative positions of the assembly plate 56 and the mounting frame 55, and thus is beneficial for installing and disassembling the protection frame 51. The installation plate 57 is slidably inserted into the inner cavity of the third card slot, and a pulling plate 58 is fixedly connected to the side of the installation plate 57, which is beneficial for pulling the installation plate 57 to move. A positioning post 515 is fixedly connected to the side of the inner wall of the protection frame 51. The positioning post 515 and the positioning cylinder 514 are beneficial for positioning the installation of the two protection frames 51 and preventing the random rotation of the protection frame 51. The outer wall of the positioning post 515 is slidably inserted into the positioning cylinder 514, and the outer wall of the positioning cylinder 514 is fixedly connected to the outer walls of the first flange 43 and the second flange 44. A square frame 59 is fixedly connected to the front of the mounting frame 55, which is beneficial for the annular plate 511 to slide inside it. A connecting rod 510 is slidably inserted into the inner cavity of the square frame 59, which is beneficial for pulling the annular plate 511 to move and facilitating the traction operation of the pulling plate 58 and the installation plate 57. One end of the connecting rod 510 is threadedly inserted into the annular plate 511, which is beneficial for driving the connecting rod 510 to move vertically. A bearing frame 513 is fixedly inserted into the side of the square frame 59. The bearing frame 513 is L-shaped, which is beneficial for guiding the sliding of the connecting rod 510. The connecting rod 510 is slidably inserted into the inner cavity of the bearing frame 513. A spring 512 for driving the vertical movement of the annular plate 511 is sleeved on the outer wall of the connecting rod 510. The elastic force of the spring 512 is beneficial for pushing the annular plate 511 to move, facilitating the annular plate 511 to return to its original position after movement, and thus repeating the operation on the installation plate 57. One end of the spring 512 is in contact with the annular plate 511, and the other end of the spring 512 is in contact with the bearing frame 513.

[0047] When it is necessary to connect the first pipeline 1 and the second pipeline 2, connect the bearing cylinder 31 with the first pipeline 1 and the fixed plate 36, and let the limiting plate 37 and the anti-disengagement plate 310 be inserted successively, so as to connect and fix the bearing cylinder 31, and then connect and fix the two insertion cylinders 32. The outer walls of the fitting ring 34 and the extrusion ring 35 are fitted with the inner wall of the first pipeline 1.

[0048] Let the second pipeline 2 drive the second flange 44 to move. Then, the second pipeline 2 slides and penetrates through the outside of the insertion cylinder 32. At the same time, the second flange 44 drives the extrusion cylinder 311 to move. The extrusion cylinder 311 penetrates through the outside of the protection cylinder 312. The extrusion cylinder 311 squeezes and limits the anti-disengagement plate 310. Then, let the threaded column 45 slide and penetrate through the second flange 44, the fixed seat 41, the connecting seat 42 and the first flange 43 in sequence. Then, the locking ring 46 is threadedly inserted and connected with the outer wall of the threaded column 45, so that the first pipeline 1 and the second pipeline 2 can be connected, locked and sealed.

[0049] Then, let the protection frame 51 drive the limiting rod 53 to penetrate into the inner cavity of the positioning hole on the locking ring 46. The positioning column 515 slides and penetrates through the inner cavity of the positioning cylinder 514. The assembly plate 56 is slidably inserted and connected with the inner cavity of the installation frame 55. At the same time, pull the pull plate 58 to move. The pull plate 58 pulls the installation plate 57 to move. The installation plate 57 slides on the installation frame 55. Then, let the installation plate 57 slide and penetrate through the assembly plate 56, so as to install and fix the two protection frames 51.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving centrifugal compressor sealing device, comprising: A first pipeline (1), with a second pipeline (2) arranged on the side of the first pipeline (1); It is characterized in that an auxiliary mechanism (3) is arranged between the first pipeline (1) and the second pipeline (2), a protection mechanism (5) for externally shielding the connection between the first pipeline (1) and the second pipeline (2) is arranged at the end of the first pipeline (1), a locking mechanism (4) for locking the connection position of the first pipeline (1) and the second pipeline (2) is arranged at the end of the first pipeline (1), and the auxiliary mechanism (3) includes: A bearing cylinder (31), which is located on the side of the first pipeline (1). Insertion cylinders (32) are fixedly connected to both the side and the side of the inner wall of the bearing cylinder (31). Adjacent insertion cylinders (32) are slidably inserted into the inner cavities of the first pipeline (1) and the second pipeline (2) respectively; An auxiliary ring (33) and a fitting ring (34), which are respectively fixedly inserted outside adjacent insertion cylinders (32); The auxiliary mechanism (3) further includes: A pressing ring (35), the inner cavity of which is respectively fixedly inserted outside adjacent insertion cylinders (32), and the outer wall of the pressing ring (35) is in contact with the inner walls of the first pipeline (1) and the second pipeline (2); A fixing plate (36), a first sliding groove is formed on the side of the bearing cylinder (31), the fixing plate (36) is slidably inserted into the inner cavity of the first sliding groove, a through groove is formed on the side of the bearing cylinder (31), and the inner cavity of the through groove is communicated with the inner cavity of the insertion cylinder (32); A limiting plate (37), a second sliding groove is formed on the outside of the bearing cylinder (31), a first clamping groove is formed on the side of the fixing plate (36), and the limiting plate (37) is slidably inserted into the inner cavities of both the second sliding groove and the first clamping groove; The locking mechanism (4) includes: A fixed seat (41), with a connecting seat (42) arranged on the side of the fixed seat (41); A first flange (43), the outer wall of the first pipeline (1) is fixedly inserted into the middle of the first flange (43), and the side of the first flange (43) is fixedly connected to the fixing plate (36); A second flange (44), the outer wall of the second pipeline (2) is fixedly inserted into the middle of the second flange (44), and the side of the second flange (44) is fixedly connected to the extrusion cylinder (311).

2. The energy-saving centrifugal compressor sealing device according to claim 1, characterized in that A connecting plate (38) is fixedly connected to the side of the limiting plate (37), a positioning plate (39) is fixedly connected to the side of the connecting plate (38), a positioning groove is formed on the outer wall of the bearing cylinder (31), the positioning plate (39) is slidably inserted into the inner cavity of the positioning groove, a third sliding groove is formed on the side of the bearing cylinder (31), an anti-disengagement plate (310) is slidably arranged in the inner cavity of the third sliding groove, a second clamping groove is formed on the side of the positioning plate (39), and the anti-disengagement plate (310) is slidably inserted into the inner cavity of the second clamping groove.

3. The energy-saving centrifugal compressor sealing device according to claim 2, characterized in that, A protective cylinder (312) is fixedly connected to the side of the bearing cylinder (31). The auxiliary ring (33) is located inside the protective cylinder (312). An extrusion cylinder (311) is slidably inserted through the outside of the protective cylinder (312). The side of the extrusion cylinder (311) is in contact with the side of the anti - detachment plate (310).

4. The energy-saving centrifugal compressor sealing device according to claim 3, characterized in that, The side of the fixed seat (41) is fixedly connected to the second flange (44). The side of the connecting seat (42) is fixedly connected to the first flange (43). Through - holes are provided on the sides of both the first flange (43) and the second flange (44). A threaded column (45) is slidably threaded through the inside of the fixed seat (41) and the connecting seat (42). The threaded column (45) is slidably inserted through the inner cavity of the through - hole. A locking ring (46) is threaded on the outer wall of the threaded column (45). Positioning holes are provided on the outer wall of the locking ring (46).

5. The energy-saving centrifugal compressor sealing device according to claim 4, wherein The protection mechanism (5) includes: A protection frame (51), with semi - circular grooves symmetrically provided on the sides of the protection frame (51). The first pipe (1) and the second pipe (2) are respectively slidably inserted through the inner cavities of the semi - circular grooves; A semi - cylinder (52), with the side of the semi - cylinder (52) fixedly connected to the protection frame (51). The first pipe (1) and the second pipe (2) are slidably inserted through the inner cavity of the semi - cylinder (52); A limiting rod (53), with one end of the limiting rod (53) fixedly connected to the side of the inner wall of the protection frame (51), and the other end of the limiting rod (53) slidably inserted through the inner cavity of the positioning hole.

6. The energy-saving centrifugal compressor sealing device according to claim 5, characterized in that, The protection mechanism (5) further includes: A square plate (54), with the side of the square plate (54) fixedly connected to one of the protection frames (51). An assembly plate (56) is fixedly connected to the side of the square plate (54); An installation frame (55), with the side of the installation frame (55) fixedly connected to the other protection frame (51). The assembly plate (56) is slidably inserted through the inner cavity of the installation frame (55). A fourth chute is provided on the side of the installation frame (55). A third card slot is provided on the side of the assembly plate (56). An installation plate (57) is provided in the inner cavity of the fourth chute. The installation plate (57) is slidably inserted through the inner cavity of the third card slot. A pulling plate (58) is fixedly connected to the side of the installation plate (57).

7. The energy-saving centrifugal compressor sealing device according to claim 6, wherein, A positioning column (515) is fixedly connected to the side of the inner wall of the protection frame (51). A positioning cylinder (514) is slidably inserted through the outer wall of the positioning column (515). The outer wall of the positioning cylinder (514) is fixedly connected to the outer walls of the first flange (43) and the second flange (44). A square frame (59) is fixedly connected to the front of the installation frame (55). A connecting rod (510) is slidably inserted through the inner cavity of the square frame (59). An annular plate (511) is threaded through one end of the connecting rod (510).

8. An energy-saving centrifugal compressor sealing device according to claim 7, characterized in that, A carrier frame (513) is fixedly inserted and connected to the side of the square frame (59). The connecting rod (510) is slidably inserted into the inner cavity of the carrier frame (513). A spring (512) for driving the vertical movement of the annular plate (511) is sleeved on the outer wall of the connecting rod (510). One end of the spring (512) is in contact with the annular plate (511), and the other end of the spring (512) is in contact with the carrier frame (513).

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