An exhaust mechanism for a screw compressor

Abstract

This invention relates to the technical field of screw compressor components, specifically disclosing an exhaust mechanism for a screw compressor. The mechanism includes a screw compressor body, which comprises a housing and a ventilation pipe. The ventilation pipe connects to an exhaust assembly, and an exhaust pipe is inserted within the exhaust assembly, communicating with the ventilation pipe. The exhaust assembly includes an upper connecting pipe. A lower connecting pipe is installed on the side of the middle connecting pipe away from the upper connecting pipe, and the lower connecting pipe is sleeved on the outside of the exhaust pipe. In this invention, the power unit in the assembly unit can drive a push-pull plate to move, and the push-pull plate, via an inclined plate, can push a push plate to move up and down. The push plate is located below the lower connecting pipe; its upward movement pushes the lower and middle connecting pipes upward, eventually connecting them to the upper connecting pipe. Conversely, when the push plate moves downward, the lower and middle connecting pipes move downward under their own weight, ultimately separating the lower connecting pipe from the exhaust pipe.

Description

Technical Field

[0001] This invention belongs to the technical field of screw compressor components, and specifically relates to an exhaust mechanism for a screw compressor. Background Technology

[0002] Screw compressors are core equipment in modern industrial production and are widely used in petrochemical, coal chemical, natural gas, metallurgical, power, machinery manufacturing, and defense industries.

[0003] Chinese Patent CN 218669813 U discloses an exhaust mechanism for a dry screw compressor, which includes: an exhaust chamber disposed on one side of the device body and fixedly connected to the middle of one side of the device body; a connecting base, the upper end of which is fixedly connected to the middle of the lower surface of the device body, and the lower end of which is threadedly connected to a threaded nail and fixedly connected to the upper surface of the mounting plate through the threaded nail; and an exhaust base, the upper end of which is fixedly connected to the lower surface of the device body, and the lower end of which is fixedly connected to the upper surface of the mounting plate.

[0004] However, the above-mentioned device has the following problems during use:

[0005] The internal connecting base and mounting plate of the device are assembled with threaded nails. During maintenance, the device needs to be disassembled. The disassembly and reassembly of the device requires the removal of multiple threaded nails, which results in a lot of time being spent on the entire device assembly and disassembly process.

[0006] Furthermore, during the installation and removal of the device, the exhaust assembly is located near numerous components, and the disassembled parts must avoid other components during transfer, which presents many inconveniences in actual operation and requires a high level of professional skill from the disassembly personnel. Therefore, this application proposes an exhaust mechanism for a screw compressor. Summary of the Invention

[0007] The purpose of this invention is to provide an exhaust mechanism for a screw compressor to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an exhaust mechanism for a screw compressor, comprising a screw compressor body, the screw compressor body including a housing and an air vent pipe, the air vent pipe being connected to an exhaust assembly, an exhaust pipe being inserted inside the exhaust assembly, and the exhaust pipe being connected to the air vent pipe;

[0009] The exhaust assembly includes an upper connecting pipe, which is inserted into a middle connecting pipe;

[0010] A lower connecting pipe is installed on the side of the middle connecting pipe away from the upper connecting pipe, and the lower connecting pipe is sleeved on the outside of the exhaust pipe.

[0011] A combination unit is provided at the location of the exhaust assembly. The combination unit includes an inclined plate, one end of which is connected to a push plate. The push plate is located below the lower connecting pipe. A push rod is fixedly connected to the push plate. The push rod penetrates the push plate. The end of the inclined plate away from the push plate is connected to the power unit through a push-pull plate. A separation unit is provided at the location of the exhaust pipe.

[0012] Preferably, the upper connecting pipe and the ventilation pipe are connected by bolts and nuts, the exhaust pipe is inserted into the top area inside the upper connecting pipe, the exhaust pipe and the top area of ​​the upper connecting pipe are interference fit, and there is a gap between the exhaust pipe and the ventilation pipe.

[0013] Preferably, the middle connecting pipe is provided with a sealing protrusion ring, and the upper connecting pipe is provided with a sealing groove at the position corresponding to the sealing protrusion ring, and a sealing gasket is wrapped around the outside of the sealing protrusion ring.

[0014] Preferably, an inner connector is provided on the inner side of the middle connecting pipe, the inner connector is fitted to the inner wall of the upper connecting pipe, and a sealing ring is installed at the position where the inner connector connects to the inner wall of the upper connecting pipe.

[0015] Preferably, the exhaust assembly is provided with a noise reduction unit, which includes an upper sound insulation component, a middle sound insulation component, and a lower sound insulation component, with the upper sound insulation component located inside the upper connecting pipe.

[0016] Preferably, the upper sound insulation component is disposed on the upper sound insulation frame and is attached to the inner wall of the upper connecting pipe. The upper sound insulation component, the middle sound insulation component, and the lower sound insulation component are all provided with cavities, and the upper sound insulation component, the middle sound insulation component, and the lower sound insulation component are distributed in sequence.

[0017] Preferably, the upper sound insulation component is inserted into the upper plug-in component, the upper plug-in component is sleeved on the outside of the exhaust pipe, the middle sound insulation component is disposed inside the middle connecting pipe, and the middle sound insulation component is in contact with the inner wall of the middle connecting pipe.

[0018] Preferably, the lower sound insulation component is fitted to the inner wall of the lower connecting pipe, the outer wall of the lower sound insulation component is connected to the lower connecting frame through a sound insulation plate, the lower connecting frame is inserted into the lower plug, and the lower plug is installed on the exhaust pipe.

[0019] Preferably, the push-pull plate is inserted into the power guide rail, and the push-pull plate is slidably connected to the power guide rail. A lifting guide rail is provided at the position of the push plate. The push plate and the lifting guide rail can only move relative to each other up and down. The lifting guide rail is connected to the power guide rail. A support member is provided at the position of the lower connecting pipe corresponding to the push plate.

[0020] Preferably, the separation unit includes an electromagnet located directly above the lower connecting pipe, on which an adsorption plate is installed. The electromagnet is mounted on a conical ring, on which a storage tank is mounted. The storage tank is connected to a lifting unit for moving it up and down. The lifting unit is connected to the traveling unit via a tray.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] I. The exhaust assembly of this invention consists of three parts: an upper connecting pipe, a middle connecting pipe, and a lower connecting pipe. The upper connecting pipe is connected to the vent pipe by bolts, while the middle and lower connecting pipes are connected to the upper connecting pipe by plug-in connection. The power unit in the assembly unit can drive the push-pull plate to move, and the push-pull plate can push the push plate to move up and down through the inclined plate. The push plate is located below the lower connecting pipe. Its upward movement can push the lower and middle connecting pipes to move upward and finally plug them into the upper connecting pipe. When the push plate moves downward, the lower and middle connecting pipes move downward together under their own gravity. Finally, the lower connecting pipe separates from the exhaust pipe, completing the disassembly of the exhaust assembly and facilitating subsequent maintenance.

[0023] Second, when the separation unit inside the invention is activated, it can drive the electromagnet to move up and down through the lifting unit, thereby attracting the lower connecting pipe. Then, it is pushed down from the push plate and push rod, and then moved away by the traveling unit, thus completing the disassembly of the exhaust assembly. The two parts are far apart after separation, which is convenient for picking up and putting down. During the assembly process, it is also not necessary to get close to the connection point. The space is large when picking up and putting down, making the operation more convenient. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the exhaust mechanism for the screw compressor in this invention.

[0025] Figure 2 This is the second schematic diagram of the exhaust mechanism for the screw compressor in this invention.

[0026] Figure 3 This is one of the structural schematic diagrams of the exhaust assembly in this invention.

[0027] Figure 4 This is a second schematic diagram of the exhaust assembly in this invention.

[0028] Figure 5 This is the third schematic diagram of the exhaust assembly in this invention.

[0029] Figure 6 This is a schematic diagram of the upper connecting pipe and the middle connecting pipe in this invention.

[0030] Figure 7This is a schematic diagram of the middle connecting pipe and the lower connecting pipe in this invention.

[0031] Figure 8 This is a schematic diagram of the separation unit in this invention.

[0032] In the diagram: 1. Screw compressor body; 101. Housing; 2. Vent pipe; 3. Exhaust assembly; 301. Upper connecting pipe; 302. Bolt; 303. Middle connecting pipe; 304. Sealing ring; 305. Sealing gasket; 306. Internal connector; 307. Sealing ring; 308. Lower connecting pipe; 4. Exhaust pipe; 5. Noise reduction unit; 501. Upper sound insulation component; 502. Upper sound insulation frame; 503. Upper connecting frame; 504. Middle sound insulation component; 505. Lower connecting frame; 506. Lower connector; 507. Lower sound insulation component;

[0033] 6. Combination unit; 601. Inclined plate; 602. Push plate; 603. Support component; 604. Power unit; 605. Power guide rail; 606. Push-pull plate; 607. Lifting guide rail; 7. Separation unit; 701. Electromagnet; 702. Adsorption plate; 703. Storage tank; 704. Lifting unit; 705. Traveling unit. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figures 1-8 An exhaust mechanism for a screw compressor includes a screw compressor body 1. Screw compressors are divided into single-screw compressors and twin-screw compressors. The screw compressor body 1 in this technical solution is a single-screw compressor. The exhaust mechanism of the screw compressor is a complex and precise system that is responsible for discharging the compressed gas from inside the compressor to the outside. The screw compressor body 1 includes a housing 101 and a ventilation pipe 2. The ventilation pipe 2 is connected to an exhaust assembly 3. An exhaust pipe 4 is inserted inside the exhaust assembly 3 and is connected to the ventilation pipe 2.

[0036] The exhaust pipe 4 is connected to the ventilation pipe 2 through the exhaust assembly 3, and is used to exhaust the gas produced by the screw compressor body 1.

[0037] Specifically, the exhaust assembly 3 includes an upper connecting pipe 301, which is connected to the ventilation pipe 2 by bolts 302 and nuts. The exhaust pipe 4 is inserted into the top area inside the upper connecting pipe 301. The exhaust pipe 4 and the top area of ​​the upper connecting pipe 301 are press-fitted, and the connection between the exhaust pipe 4 and the upper connecting pipe 301 is sealed. There is a gap between the exhaust pipe 4 and the ventilation pipe 2. Gas enters the upper connecting pipe 301 in the exhaust assembly 3 through the ventilation pipe 2 and is discharged through the sealed exhaust pipe 4.

[0038] More specifically, the upper connecting pipe 301 and the middle connecting pipe 303 are inserted together. In order to seal the connection between the upper connecting pipe 301 and the middle connecting pipe 303, a sealing protrusion ring 304 is provided on the middle connecting pipe 303. A sealing groove is provided in the upper connecting pipe 301 at the position corresponding to the sealing protrusion ring 304, and a sealing gasket 305 is wrapped around the outside of the sealing protrusion ring 304. At the same time, an inner connector 306 is also provided on the inner side of the middle connecting pipe 303. The inner connector 306 fits against the inner wall of the upper connecting pipe 301, and a sealing ring 307 is installed at the connection between the inner connector 306 and the inner wall of the upper connecting pipe 301.

[0039] By installing a sealing ring 307 and a sealing protrusion 304 at the connection point of the upper connecting pipe 301 and the middle connecting pipe 303, the sealing ring 307 is located on the inner connector 306 and inserted into the inner side of the upper connecting pipe 301, while the sealing protrusion 304 is located on the middle connecting pipe 303 and located on the outer side of the upper connecting pipe 301. In this way, the two layers of sealing, one inside and one outside, prevent gaps from appearing at the connection point of the upper connecting pipe 301 and the middle connecting pipe 303, thus ensuring the sound insulation effect.

[0040] It should be noted that a lower connecting pipe 308 is installed on the side of the middle connecting pipe 303 away from the upper connecting pipe 301. The lower connecting pipe 308 is sleeved on the outside of the exhaust pipe 4, and the connection between the lower connecting pipe 308 and the exhaust pipe 4 is sealed.

[0041] The exhaust pipe 4 transports compressed gas, which generates considerable noise during transport. To reduce noise, a noise reduction unit 5 is installed inside the exhaust assembly 3. The noise reduction unit 5 includes an upper sound insulation component 501, a middle sound insulation component 504, and a lower sound insulation component 507. The upper sound insulation component 501 is located inside the upper connecting pipe 301 and is mounted on the upper sound insulation frame 502. The upper sound insulation component 501 is attached to the inner wall of the upper connecting pipe 301. The upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507 all have cavities inside. These cavities can isolate the transmission of sound, achieving a noise reduction effect. This reduces the noise generated during the gas flow inside the exhaust pipe 4. The upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507 are distributed sequentially.

[0042] Specifically, the upper sound insulation component 501 is inserted into the upper connector, which is sleeved on the outside of the exhaust pipe 4. The middle sound insulation component 504 is installed inside the middle connecting pipe 303 and is in contact with the inner wall of the middle connecting pipe 303. The lower sound insulation component 507 is in contact with the inner wall of the lower connecting pipe 308.

[0043] More specifically, the outer wall of the lower sound insulation component 507 is connected to the lower connecting frame 505 through a sound insulation plate, the lower connecting frame 505 is inserted into the lower plug 506, and the lower plug 506 is installed on the exhaust pipe 4.

[0044] Through the cooperation of components such as the upper connecting frame 503 and the lower connecting frame 505, the upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507 are respectively attached to the upper connecting pipe 301, the middle connecting pipe 303, and the lower connecting pipe 308. The exhaust pipe 4 is inserted into the middle position of the exhaust assembly 3, located inside the upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507. Thus, the sound generated during the gas flow inside the exhaust pipe 4 needs to pass through the upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507 to be transmitted to the outside. The upper sound insulation component 501, the middle sound insulation component 504, and the lower sound insulation component 507 are all provided with cavities, which can isolate the transmission of sound and achieve the effect of noise reduction, thereby reducing the noise generated during the gas flow inside the exhaust pipe 4.

[0045] As an important component of the screw compressor body 1, the exhaust assembly 3 requires regular maintenance of some of its internal parts. During maintenance, it is necessary to disassemble the easily damaged internal parts. Therefore, a combination unit 6 is provided at the location of the exhaust assembly 3. The combination unit 6 includes an inclined plate 601. One end of the inclined plate 601 is connected to the push plate 602, which is located below the lower connecting pipe 308. The push plate 602 is fixedly connected to the push rod, which penetrates the push plate 602. The end of the inclined plate 601 away from the push plate 602 is connected to the power unit 604 through the push-pull plate 606. The push-pull plate 606 is inserted into the power guide rail 605 and is slidably connected to the power guide rail 605.

[0046] To ensure smooth vertical movement of the lower connecting pipe 308, a lifting guide rail 607 is provided at the position of the push plate 602. The push plate 602 and the lifting guide rail 607 can only move relative to each other vertically. The lifting guide rail 607 is connected to the power guide rail 605. It should be noted that a support member 603 is provided at the position of the lower connecting pipe 308 corresponding to the push plate 602. The support member 603 can support the push plate 602 to prevent the push plate 602 from failing to generate enough force to drive the lower connecting pipe 308 to move, so that the push plate 602 and the lower connecting pipe 308 can move vertically smoothly.

[0047] The assembly unit 6 can separate a portion of the exhaust assembly 3 from the exhaust pipe 4. Since the separated portion of the exhaust assembly 3 needs to be transported, a separation unit 7 is provided at the location of the exhaust pipe 4. The separation unit 7 includes an electromagnet 701, which is located directly above the lower connecting pipe 308. An adsorption plate 702 is installed on the lower connecting pipe 308. The electromagnet 701 is mounted on a conical ring, and a storage tank 703 is mounted on the conical ring. The storage tank 703 is connected to a lifting unit 704 for moving it up and down. The lifting unit 704 is connected to a traveling unit 705 via a tray. The traveling unit 705 can move the tray, lifting unit 704, and other components. When the electromagnet 701 is activated, it can attract the adsorption plate 702, thereby attracting the lower connecting pipe 308 and the middle connecting pipe 303. In this way, the traveling unit 705 can remove the separated lower connecting pipe 308 and the middle connecting pipe 303, facilitating maintenance work by personnel.

[0048] Working principle:

[0049] The exhaust assembly 3 is divided into three parts: upper connecting pipe 301, middle connecting pipe 303, and lower connecting pipe 308. The upper connecting pipe 301 is connected to the ventilation pipe 2 by bolts 302, while the middle connecting pipe 303 and the lower connecting pipe 308 are connected to the upper connecting pipe 301 by plug-in connection. The power for plug-in connection between the middle connecting pipe 303, the lower connecting pipe 308, and the upper connecting pipe 301 comes from the combination unit 6.

[0050] The power unit 604 in the combination unit 6 can drive the push-pull plate 606 to move, and the push-pull plate 606 can push the push plate 602 to move up and down through the inclined plate 601. The push plate 602 is located below the lower connecting pipe 308. Its upward movement can push the lower connecting pipe 308 and the middle connecting pipe 303 to move upward, and finally insert them together with the upper connecting pipe 301. When the push plate 602 moves downward, the lower connecting pipe 308 and the middle connecting pipe 303 move downward together under their own gravity. Finally, the lower connecting pipe 308 separates from the exhaust pipe 4.

[0051] When the separation unit 7 is activated, it can drive the electromagnet 701 to move up and down through the lifting unit 704, thereby attracting the lower connecting pipe 308. Then, it pushes it off the push plate 602 and the push rod, and then moves it away through the traveling unit 705, thus completing the disassembly of the exhaust assembly 3. The two parts are far apart after separation, which is convenient for picking and placing. During the assembly process, it is not necessary to get close to the connection point. The space is large when picking and placing, making the operation more convenient.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A discharge mechanism for a screw compressor, comprising a screw compressor body (1), the screw compressor body (1) including a housing (101) and a ventilation pipe (2), the ventilation pipe (2) being connected to a discharge assembly (3), characterized in that, An exhaust pipe (4) is inserted inside the exhaust assembly (3), and the exhaust pipe (4) is connected to the ventilation pipe (2); The exhaust assembly (3) includes an upper connecting pipe (301), which is inserted into a middle connecting pipe (303); The middle connecting pipe (303) is equipped with a lower connecting pipe (308) on the side away from the upper connecting pipe (301), and the lower connecting pipe (308) is sleeved on the outside of the exhaust pipe (4); A combination unit (6) is provided at the position of the exhaust assembly (3). The combination unit (6) includes an inclined plate (601). One end of the inclined plate (601) is connected to the push plate (602), and the push plate (602) is located on the lower side of the lower connecting pipe (308). The push plate (602) is fixedly connected to the push rod, and the push rod penetrates the push plate (602). The end of the inclined plate (601) away from the push plate (602) is connected to the power unit (604) through the push-pull plate (606). A separation unit (7) is provided at the position of the exhaust pipe (4). The push-pull plate (606) is inserted into the power guide rail (605), and the push-pull plate (606) is slidably connected to the power guide rail (605). A lifting guide rail (607) is provided at the position of the push plate (602). The push plate (602) and the lifting guide rail (607) can only move up and down relative to each other. The lifting guide rail (607) is connected to the power guide rail (605). A support member (603) is provided at the position of the lower connecting pipe (308) corresponding to the position of the push plate (602). The separation unit (7) includes an electromagnet (701) located directly above the lower connecting pipe (308), and an adsorption plate (702) is installed on the lower connecting pipe (308). The electromagnet (701) is mounted on a conical ring, and a storage tank (703) is mounted on the conical ring. The storage tank (703) is connected to a lifting unit (704) for driving it up and down. The lifting unit (704) is connected to the traveling unit (705) via a tray.

2. The exhaust mechanism for a screw compressor according to claim 1, characterized in that, The upper connecting pipe (301) is connected to the ventilation pipe (2) by bolts (302) and nuts. The exhaust pipe (4) is inserted into the top area inside the upper connecting pipe (301). The exhaust pipe (4) is interference-fitted with the top area of ​​the upper connecting pipe (301). There is a gap between the exhaust pipe (4) and the ventilation pipe (2).

3. The exhaust mechanism for a screw compressor according to claim 1, characterized in that, The middle connecting pipe (303) is provided with a sealing protrusion ring (304), and the upper connecting pipe (301) is provided with a sealing groove at the position corresponding to the sealing protrusion ring (304), and a sealing gasket (305) is wrapped around the outside of the sealing protrusion ring (304).

4. The exhaust mechanism for a screw compressor according to claim 3, characterized in that, An inner connector (306) is also provided on the inner side of the middle connecting pipe (303). The inner connector (306) fits against the inner wall of the upper connecting pipe (301), and a sealing ring (307) is installed at the position where the inner connector (306) connects with the inner wall of the upper connecting pipe (301).

5. The exhaust mechanism for a screw compressor according to claim 1, characterized in that, The exhaust assembly (3) is provided with a noise reduction unit (5), which includes an upper sound insulation component (501), a middle sound insulation component (504), and a lower sound insulation component (507). The upper sound insulation component (501) is located inside the upper connecting pipe (301).

6. The exhaust mechanism for a screw compressor according to claim 5, characterized in that, The upper sound insulation component (501) is installed on the upper sound insulation frame (502) and is attached to the inner wall of the upper connecting pipe (301). The upper sound insulation component (501), the middle sound insulation component (504), and the lower sound insulation component (507) are all provided with cavities, and the upper sound insulation component (501), the middle sound insulation component (504), and the lower sound insulation component (507) are distributed in sequence.

7. The exhaust mechanism for a screw compressor according to claim 6, characterized in that, The upper sound insulation component (501) is inserted into the upper plug-in component, which is sleeved on the outside of the exhaust pipe (4). The middle sound insulation component (504) is set inside the middle connecting pipe (303), and the middle sound insulation component (504) is in contact with the inner wall of the middle connecting pipe (303).

8. The exhaust mechanism for a screw compressor according to claim 7, characterized in that, The lower sound insulation component (507) is attached to the inner wall of the lower connecting pipe (308). The outer wall of the lower sound insulation component (507) is connected to the lower connecting frame (505) through a sound insulation plate. The lower connecting frame (505) is inserted into the lower plug (506), and the lower plug (506) is set on the exhaust pipe (4).

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