Low leakage hydrocyclone compressor cylinder with face seal

Abstract

The utility model relates to a low leakage screw liquid compressor cylinder with end face sealing structure, including bearing cylinder and front cover, the bearing cylinder right -hand member is provided with rear cover, the bearing cylinder left -hand member is provided with first fastening assembly, the bearing cylinder is provided with second fastening assembly, the front cover left -hand member is provided with first connecting assembly and second connecting assembly, the front cover with between bearing cylinder is provided with outer sealing ring and inner sealing ring. This low leakage screw liquid compressor cylinder with end face sealing structure, first connecting assembly, first fastening assembly, second fastening assembly and second connecting assembly set up, make fastening bolt and fixed bolt pre -tightening force better, inner gasket and outer gasket pass through the elastic deformation compensation fastening bolt and fixed bolt pre -tightening force attenuation caused by vibration in the use process, the extension pipe extends into the inside of connecting hole, avoids the fixed bolt installation deviation situation, makes bearing cylinder and front cover connection sealing better.

Description

Technical Field

[0001] This utility model relates to the field of compressor cylinder technology, specifically to a low-leakage cyclone compressor cylinder with an end-face sealing structure. Background Technology

[0002] The cylinder of a cyclone compressor is a core component of a compressor based on cyclone separation technology. It achieves gas-liquid separation with the assistance of centrifugal force, hence this compressor is also called a centrifugal compressor. Its principle is that after the refrigerant enters the cylinder, it rotates at high speed along the channel. The dense liquid refrigerant is thrown towards the cylinder wall by centrifugal force, while the gaseous refrigerant gathers towards the center, thus achieving gas-liquid pre-separation.

[0003] In existing compressors, sealing gaskets are often placed directly between the end cover and the cylinder during assembly, and then connected with bolts. This can easily lead to errors in the assembly process, resulting in poor compressor sealing. Furthermore, the vibration generated by the compressor operation during long-term use can affect the preload of the bolts, further reducing the compressor's sealing performance. Therefore, a low-leakage swirling compressor cylinder with an end face sealing structure is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a low-leakage cyclone compressor cylinder with an end-face sealing structure, solving the problem of poor end-face sealing in existing centrifugal compressors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-leakage cyclone compressor cylinder body with an end-face sealing structure, for mounting on a compressor, comprising: A bearing cylinder body, wherein a rear cover is provided at the right end of the bearing cylinder body, a first fastening component is provided at the left end of the bearing cylinder body, and a second fastening component is provided inside the bearing cylinder body; The front cover has a first connecting component and a second connecting component at its left end. The first connecting component cooperates with the first fastening component to fix the bearing cylinder to the front cover, and the second fastening component cooperates with the second connecting component to fix the bearing cylinder to the front cover. An outer sealing ring and an inner sealing ring are provided between the front cover and the bearing cylinder body for sealing the front cover and the bearing cylinder body.

[0006] In one embodiment, the first fastening assembly includes a flange fixed to the left end of the bearing cylinder, the flange having a plurality of connection holes, the right side of the flange having a plurality of outer gasket grooves, the connection holes extending into the outer gasket grooves, and an outer gasket placed in the outer gasket grooves.

[0007] In one embodiment, the second fastening assembly includes a fixing ring seat fixed to the inner peripheral wall of the bearing cylinder. The fixing ring seat has a plurality of inner gasket grooves and a threaded hole located in the inner gasket groove. An inner gasket is placed in the inner gasket groove.

[0008] In one embodiment, the first connecting assembly includes a plurality of end cap connecting holes, a plurality of outer end cap gasket grooves, and an extension tube disposed on the front cover. The end cap connecting holes extend into the outer end cap gasket grooves, and the outer gaskets are placed in the outer end cap gasket grooves. The extension tube is fixed to the front cover and located outside the end cover connection hole. The extension tube passes through the outer sealing ring and extends into the connection hole to contact the outer gasket on the right side. A fixing bolt is inserted into the end cap connection hole, passing through the extension tube and the two outer gaskets on the left and right. A fixing nut is threaded on the outer peripheral wall of the fixing bolt, and the fixing nut contacts the outer gasket on the right side.

[0009] In one embodiment, the second fastening assembly includes a plurality of fastening holes, a plurality of inner end cap gasket grooves, and an extension ring seat disposed on the front cover, wherein the fastening holes extend into the inner end cap gasket grooves and extend through the extension ring seat at their other ends, and, The extended ring seat extends into the inside of the flange and contacts the inner sealing ring to press against the inner sealing ring and make it contact the fixed ring seat.

[0010] The inner gasket is placed in the inner end cap gasket groove, and a fastening bolt is inserted into the fastening hole, passing through the inner sealing ring and the two inner gaskets on the left and right, and threaded inside the threaded hole.

[0011] In one embodiment, the outer sealing ring is sleeved and contacts the outer peripheral wall of the extension ring seat.

[0012] In one embodiment, the front cover is provided with tubes at both ends, the front cover is also provided with a connecting tube and an inlet tube, and the bearing cylinder is provided with an outlet tube.

[0013] In one embodiment, the bearing cylinder body, the rear cover, the fixing ring seat, and the flange are integrally formed.

[0014] This utility model also proposes a compressor, including a low-leakage cyclone compressor cylinder body with an end-face sealing structure for mounting on the compressor, comprising: A bearing cylinder body, wherein a rear cover is provided at the right end of the bearing cylinder body, a first fastening component is provided at the left end of the bearing cylinder body, and a second fastening component is provided inside the bearing cylinder body; The front cover has a first connecting component and a second connecting component at its left end. The first connecting component cooperates with the first fastening component to fix the bearing cylinder to the front cover, and the second fastening component cooperates with the second connecting component to fix the bearing cylinder to the front cover. An outer sealing ring and an inner sealing ring are provided between the front cover and the bearing cylinder body for sealing the front cover and the bearing cylinder body.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The low-leakage cyclone compressor cylinder with end face sealing structure, through the cooperation of the first connecting component and the first fastening component and the cooperation of the second fastening component and the second connecting component, makes the outer sealing ring and the inner sealing ring form a double sealing structure, thereby avoiding the influence of the single sealing structure formed by bolts and sealing rings on the preload force, and making the overall sealing effect of the compressor cylinder better.

[0016] 2. The low-leakage cyclone compressor cylinder with end face sealing structure, through the setting of inner gasket, outer gasket and extension tube, the inner gasket and outer gasket compensate for the pre-tightening force attenuation caused by vibration during the use of fastening bolts and fixing bolts through elastic deformation, and the extension tube extends into the connection hole, so that the bearing cylinder and the front cover can be pre-connected before installation, thereby avoiding the installation misalignment of fixing bolts and making the connection and sealing of the bearing cylinder and the front cover better; 3. The low-leakage cyclone compressor cylinder with end face sealing structure has an integrally formed structure of the carrier cylinder and the rear cover, so that there is no gap between the rear cover and the carrier cylinder, eliminating the need for a sealing structure, reducing costs, and further improving the overall sealing effect of the compressor cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top-exploded view of the present invention; Figure 3 This is an exploded view of the present invention from below; Figure 4 This is a schematic diagram of the bearing cylinder structure of this utility model; Figure 5 This is a schematic diagram of the front cover structure of this utility model.

[0018] In the diagram: 1. Load-bearing cylinder body; 2. Rear cover; 3. Outlet pipe; 4. Flange; 5. Connecting hole; 6. Fixing ring seat; 7. Threaded hole; 8. Inner gasket groove; 9. Front cover; 10. Inlet pipe; 11. Coupling pipe; 12. Tube; 13. Extension ring seat; 14. Fastening hole; 15. Inner end cover gasket groove; 16. End cover connecting hole; 17. Outer end cover gasket groove; 18. Inner sealing ring; 19. Inner gasket; 20. Fastening bolt; 21. Outer sealing ring; 22. Fixing bolt; 23. Outer gasket; 24. Fixing nut; 25. Extension pipe; 26. Outer gasket groove. 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 1-5 This embodiment provides a low-leakage cyclone compressor cylinder body with an end-face sealing structure, used for mounting on a compressor. It includes a support cylinder body 1 and a front cover 9. An outer sealing ring 21 and an inner sealing ring 18 are provided between the front cover 9 and the support cylinder body 1 for sealing the front cover 9 and the support cylinder body 1. A rear cover 2 is provided at the right end of the support cylinder body 1. A first fastening component is provided at the left end of the support cylinder body 1. A second fastening component is provided inside the support cylinder body 1. A first connecting component and a second connecting component are provided at the left end of the front cover 9. The first connecting component and the first fastening component cooperate to fix the support cylinder body 1 and the front cover 9, and the second fastening component and the second connecting component cooperate to fix the support cylinder body 1 and the front cover 9.

[0021] Specifically, the inner sealing ring 18 is first installed on the surface of the second fastening component, and then the outer sealing ring 21 is fitted onto the outside of the second connecting component. After the front cover 9 and the bearing cylinder 1 are closed, the first connecting component and the first fastening component are assembled so that the outer sealing ring 21 covers the gap between the second fastening component and the second connecting component. At the same time, the second fastening component and the second connecting component squeeze and fix the inner sealing ring 18, so that the gap between the second connecting component and the bearing cylinder 1 is covered, thereby improving the overall sealing performance of the compressor cylinder.

[0022] This configuration, with the first connecting component, the first fastening component, the second fastening component, and the second connecting component, enables the compressor cylinder to achieve a double seal, avoiding the problem of a single-seal structure affecting the preload and requiring frequent replacement. At the same time, it extends the service life of the sealing structure and reduces replacement costs.

[0023] In this embodiment, the first fastening component includes a flange 4 fixed to the left end of the bearing cylinder 1. The flange 4 has multiple connection holes 5 and multiple outer gasket grooves 26 on the right side of the flange 4. The connection holes 5 extend into the outer gasket grooves 26, and an outer gasket 23 is placed in the outer gasket grooves 26.

[0024] The number of connection holes 5 corresponds to the number of outer gasket grooves 26. The specific number can be adjusted according to the actual use, and the connection holes 5 need to be evenly distributed on the flange 4.

[0025] In addition, the outer gasket 23 can be a spring washer, a disc gasket, etc., which can be selected according to the actual use, so as to compensate for the preload reduction caused by the vibration of the first fastening component through elastic deformation.

[0026] In this embodiment, the second fastening component includes a fixing ring seat 6 fixed to the inner peripheral wall of the bearing cylinder 1. The fixing ring seat 6 has a plurality of inner gasket grooves 8 and a threaded hole 7 located in the inner gasket groove 8. An inner gasket 19 is placed in the inner gasket groove 8.

[0027] The number of threaded holes 7 can be adjusted according to the number of connecting holes 5. It is necessary to ensure that both numbers are properly adjusted, and their distribution positions are appropriately matched. Figure 4 As shown, there are at least four threaded holes 7 and four connecting holes 5, and they are evenly distributed on the fixed ring seat 6 and the flange 4, respectively.

[0028] In addition, the inner gasket 19 and the outer gasket 23 are made of the same material, or different materials can be used depending on the actual use, so that the second fastening component can compensate for the preload reduction caused by vibration through elastic deformation.

[0029] The inner gasket groove 8 and the outer gasket groove 26 respectively limit the inner gasket 19 and the outer gasket 23 to prevent them from shifting.

[0030] In this embodiment, the first connecting component includes multiple end cap connecting holes 16, multiple outer end cap gasket grooves 17, and an extension tube 25 disposed on the front cover 9. The end cap connecting holes 16 extend into the outer end cap gasket grooves 17, and an outer gasket 23 is placed in the outer end cap gasket grooves 17. The extension tube 25 is fixed on the front cover 9 and located outside the end cap connecting holes 16. The extension tube 25 passes through the outer sealing ring 21 and extends into the connecting hole 5 to contact the right outer gasket 23. A fixing bolt 22 that passes through the extension tube 25 and the two outer gaskets 23 is inserted into the end cap connecting hole 16. A fixing nut 24 is threaded on the outer peripheral wall of the fixing bolt 22 and contacts the right outer gasket 23.

[0031] Specifically, the outer gasket 23 is placed inside the outer end cover gasket groove 17, and then the fixing bolt 22 is inserted and passed through the left outer gasket 23, the end cover connecting hole 16, the extension tube 25 and the right outer gasket 23 in sequence. Then the fixing nut 24 is installed outside the fixing bolt 22 so that the fixing bolt 22 contacts the flange 4, thereby fixing the bearing cylinder 1 and the front cover 9. The two can be pre-fixed through the extension tube 25 to avoid installation misalignment.

[0032] The extension tube 25 passes through the outer sealing ring 21, fixing the outer sealing ring 21 between the bearing cylinder 1 and the front cover 9, thus forming a surface sealing structure.

[0033] In addition, the fixing bolt 22 can be sprayed with molybdenum disulfide or polytetrafluoroethylene before installation to reduce the coefficient of friction and reduce the problem of deviation in the preload of the fixing nut 24 due to thread jamming.

[0034] It should be understood that the number of end cap connection holes 16 is the same as the number of connection holes 5, such as... Figure 3 As shown, at least four units need to be set to achieve uniform fixation.

[0035] In this embodiment, the second fastening assembly includes multiple fastening holes 14, multiple inner end cap gasket grooves 15, and an extension ring seat 13 disposed on the front cover 9. The fastening holes 14 extend into the inner end cap gasket grooves 15, and the other end extends through the extension ring seat 13. The extension ring seat 13 extends into the flange 4 and contacts the inner sealing ring 18 to press against the inner sealing ring 18 so that it contacts the fixing ring seat 6. An inner gasket 19 is placed in the inner end cap gasket groove 15. A fastening bolt 20 is inserted into the fastening hole 14, penetrating the inner sealing ring 18 and the two inner gaskets 19 on the left and right, and threaded into the threaded hole 7.

[0036] Specifically, the outer sealing ring 21 is fitted over the extension ring seat 13. At this time, the four inner gaskets 19 on the right side are placed in the inner gasket grooves 8 respectively. Then, the inner sealing ring 18 is placed at the left end of the fixing ring seat 6. After the first connecting assembly and the first fastening assembly are installed, the left inner gasket 19 is placed in the inner end cover gasket groove 15, so that the fastening bolt 20 passes through the left inner gasket 19, the fastening hole 14, the inner sealing ring 18 and the right inner gasket 19 in sequence, and is threaded into the threaded hole 7, forming a secondary sealing structure. The inner sealing ring 18 blocks the gap between the extension ring seat 13 and the bearing cylinder 1, while the outer sealing ring 21 blocks the gap between the flange 4 and the extension ring seat 13, achieving a high sealing effect.

[0037] The number of fastening holes 14 is set according to the number of threaded holes 7, such as... Figure 3 As shown, the number of fastening holes 14 is at least four, thereby achieving uniform fastening and avoiding local leakage.

[0038] In addition, the inner gasket 19 and the outer gasket 23 are made of the same material, and can be selected according to the specific application.

[0039] In this embodiment, the outer sealing ring 21 is sleeved and contacts the outer peripheral wall of the extension ring seat 13.

[0040] This design improves the sealing effect of the outer sealing ring 21.

[0041] In this embodiment, the front cover 9 is provided with tubes 12 at both the front and rear ends, and the front cover 9 is also provided with a connecting tube 11 and an inlet tube 10, and the bearing cylinder 1 is provided with an outlet tube 3.

[0042] Among them, the coupling pipe 11 is used for shaft installation, the inlet pipe 10 is used for liquid or gas inlet treatment, and the outlet pipe 3 is used for liquid or gas discharge after treatment.

[0043] In addition, the tube 12 allows the compressor cylinder to be connected to other equipment via double-ended bolts and nuts, facilitating installation.

[0044] In this embodiment, the bearing cylinder 1, the rear cover 2, the fixing ring seat 6, and the flange 4 are integrally formed.

[0045] This design reduces the need for sealing structure installation, resulting in better sealing performance of the bearing cylinder 1 and lower sealing costs.

[0046] This utility model also proposes a compressor, which includes a low-leakage cyclone compressor cylinder with an end face sealing structure. The specific structure of the low-leakage cyclone compressor cylinder with an end face sealing structure is as described in the above embodiments. Since this compressor adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects of the technical solutions of the above embodiments, which will not be elaborated here.

[0047] In this embodiment, the bearing cylinder 1 has multiple perforations.

[0048] It should be understood that the perforated design allows for the installation of other auxiliary pipes in the compressor, such as cooling water pipes to provide cooling for the cylinder or compressor as a whole and prevent overheating; lubricating oil pipes to provide lubricating oil for the rotor bearings and reduce friction and wear; and vibration damping pipes, which are flexible metal hoses used to connect the compressor to the external circulation pipeline to absorb vibration and displacement and prevent pipeline stress fatigue.

[0049] 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.

[0050] 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.

Claims

1. A low-leakage cyclone compressor cylinder body with an end-face sealing structure, for mounting on a compressor, characterized in that, include: The bearing cylinder (1) has a rear cover (2) at its right end, a first fastening component at its left end, and a second fastening component inside the bearing cylinder (1). The front cover (9) has a first connecting component and a second connecting component at its left end. The first connecting component cooperates with the first fastening component to fix the bearing cylinder (1) to the front cover (9), and the second fastening component cooperates with the second connecting component to fix the bearing cylinder (1) to the front cover (9). An outer sealing ring (21) and an inner sealing ring (18) are provided between the front cover (9) and the bearing cylinder (1) for sealing the front cover (9) and the bearing cylinder (1); The first fastening assembly includes a flange (4) fixed to the left end of the bearing cylinder (1), the flange (4) having multiple connecting holes (5), the flange (4) having multiple outer gasket grooves (26) on the right side, the connecting holes (5) extending into the outer gasket grooves (26), and an outer gasket (23) placed in the outer gasket grooves (26); the second fastening assembly includes a fixing ring seat (6) fixed to the inner peripheral wall of the bearing cylinder (1), the fixing ring seat (6) having multiple inner gasket grooves (8), the fixing ring seat (6) having threaded holes (7) located in the inner gasket grooves (8), and an inner gasket (19) placed in the inner gasket grooves (8).

2. The low-leakage cyclone compressor cylinder body with an end-face sealing structure according to claim 1, characterized in that, The first connecting assembly includes a plurality of end cap connecting holes (16), a plurality of outer end cap gasket grooves (17), and an extension tube (25) disposed on the front cover (9). The end cap connecting holes (16) extend into the outer end cap gasket grooves (17), and the outer gasket (23) is placed in the outer end cap gasket grooves (17). The extension tube (25) is fixed to the front cover (9) and located outside the end cover connection hole (16). The extension tube (25) passes through the outer sealing ring (21) and extends into the connection hole (5) to contact the outer gasket (23) on the right side. The end cap connecting hole (16) is fitted with a fixing bolt (22) that passes through the extension tube (25) and the two outer gaskets (23) on the left and right. The fixing bolt (22) has a fixing nut (24) threaded on its outer peripheral wall. The fixing nut (24) contacts the outer gasket (23) on the right side.

3. The low-leakage cyclone compressor cylinder body with an end-face sealing structure according to claim 1, characterized in that, The second fastening assembly includes a plurality of fastening holes (14), a plurality of inner end cap gasket grooves (15), and an extension ring seat (13) disposed on the front cover (9), wherein the fastening holes (14) extend into the inner end cap gasket grooves (15) and the other end extends through the extension ring seat (13), and, The extended ring seat (13) extends into the interior of the flange (4) and contacts the inner sealing ring (18) to press against the inner sealing ring (18) and make it contact the fixed ring seat (6). The inner end cap gasket groove (15) contains the inner gasket (19), and the fastening hole (14) contains a fastening bolt (20) that penetrates the inner sealing ring (18) and the two inner gaskets (19) on the left and right sides and is threaded inside the threaded hole (7).

4. The low-leakage cyclone compressor cylinder body with an end-face sealing structure according to claim 3, characterized in that, The outer sealing ring (21) is sleeved and contacts the outer peripheral wall of the extension ring seat (13).

5. The low-leakage cyclone compressor cylinder body with an end-face sealing structure according to claim 1, characterized in that, The front cover (9) is provided with tubes (12) at both ends. The front cover (9) is also provided with a connecting tube (11) and an inlet tube (10). The bearing cylinder (1) is provided with an outlet tube (3).

6. The low-leakage cyclone compressor cylinder block with an end-face sealing structure according to claim 1, characterized in that, The bearing cylinder (1), the rear cover (2), the fixing ring seat (6), and the flange (4) are integrally formed.

7. A compressor, characterized in that, Includes a low-leakage cyclone compressor cylinder with an end-face sealing structure as described in any one of claims 1 to 6 above.

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