Main machine head structure of reciprocating piston type compressor

Abstract

The utility model relates to a reciprocating piston type compressor main machine head structure, and relates to the technical field of compressors, in order to solve the problem that dust easily enters a compressor main machine head during working, the reciprocating piston type compressor main machine head structure comprises a machine body, a cylinder body is arranged on the machine body, the cylinder body is communicated with the interior of the machine body, and an air inlet pipe and an exhaust pipe are arranged on the cylinder body; a working mechanism used for working is arranged in the cylinder body, a filtering mechanism used for filtering dust is arranged at an air inlet of the air inlet pipe, the filtering mechanism comprises a filtering cylinder, a steel wire filter screen, a fiber filter screen and an activated carbon filter screen, the filtering cylinder is connected to the air inlet of the air inlet pipe, and the steel wire filter screen is connected to the activated carbon filter screen. A grating net used for blocking dust is arranged on the outer wall of the filter cylinder, the steel wire filter screen, the fiber filter screen and the activated carbon filter screen are sequentially installed in the filter cylinder from outside to inside, and a disassembling and assembling assembly used for disassembling and assembling the filter screens is installed in the filter cylinder. The compressor has the effects of providing multiple filtering effects and ensuring the quality of air entering the compressor.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a main head structure of a reciprocating piston compressor. Background Art

[0002] As a key power equipment, compressors are widely used in refrigeration, air-conditioning, industry and other fields. In these fields, reciprocating piston compressors occupy an important position due to their simple structure, high reliability and easy maintenance. This type of compressor achieves the suction, compression and discharge of gas through the reciprocating motion of the piston in the cylinder, thereby meeting the pressure and flow requirements of various application scenarios.

[0003] In the related technology, during the operation of a reciprocating piston compressor, when the piston reciprocates at high speed in the cylinder, a certain airflow will be formed. If there is dust in the working environment, the dust may enter the compressor with the airflow. Once the dust enters, it may adhere to the piston, cylinder wall or other key components, causing problems such as increased wear and reduced sealing performance. Therefore, there is room for improvement. Utility Model Content

[0004] In order to solve the problem that dust easily enters the main head of the compressor when it is working, the present application provides a main head structure of a reciprocating piston compressor.

[0005] The main head structure of a reciprocating piston compressor provided in this application adopts the following technical solution:

[0006] A main head structure of a reciprocating piston compressor comprises a fuselage, on which a cylinder body is arranged, the cylinder body is communicated with the interior of the fuselage, an air intake pipe and an exhaust pipe are respectively arranged on the cylinder body, a working mechanism for working is arranged inside the cylinder body, a filtering mechanism for filtering dust is arranged at the air inlet of the air intake pipe, the filtering mechanism comprises a filter cartridge, a steel wire filter, a fiber filter and an activated carbon filter, the filter cartridge is connected at the air inlet of the air intake pipe, a grille for blocking dust is provided on the outer wall of the filter cartridge, the steel wire filter, the fiber filter and the activated carbon filter are sequentially installed in the filter cartridge from the outside to the inside, and a disassembly assembly component for disassembling and assembling the filter is installed in the filter cartridge.

[0007] During the operation of the reciprocating piston compressor, a certain amount of airflow is formed when the piston reciprocates at high speed in the cylinder. If there is dust in the working environment, the dust may enter the compressor with the airflow. Once the dust enters, it may adhere to the piston, cylinder wall or other key components, resulting in increased wear and reduced sealing performance. By adopting the above technical solution, the filter mechanism is installed at the air inlet of the cylinder intake pipe. The filter mechanism includes a filter cartridge, a wire filter, a fiber filter and an activated carbon filter. The wire filter, the fiber filter and the activated carbon filter are installed in the filter cartridge from the outside to the inside in sequence. When the compressor is working, the working mechanism converts the rotational motion into reciprocating linear motion, the pressure in the cylinder drops, and the intake valve on the intake pipe opens automatically. The outside air is initially filtered through the grille of the filter cartridge to intercept larger dust particles, and then enters the interior of the filter cartridge, where it first encounters the wire filter, which is woven from fine steel wires to further intercept smaller dust particles and impurities, ensuring that only relatively clean air can pass through. After passing through the steel wire filter, the air continues to enter the fiber filter area. The fiber filter is made of a material with high fiber density and has a finer filtering ability. It can capture smaller particles such as dust and pollen. Finally, the air passes through the activated carbon filter. The activated carbon filter uses the adsorption properties of activated carbon to further remove odors, harmful gases and volatile organic compounds in the air. The filtered air enters the cylinder until the air in the cylinder is compressed and the exhaust valve on the exhaust pipe automatically opens to discharge the compressed air. Through the setting of the filter cartridge, steel wire filter, fiber filter and activated carbon filter, multiple filtering effects are provided. From intercepting large particles of dust to adsorbing tiny particles and harmful gases, each layer of filter plays a key role, ensuring the quality of air entering the compressor, meeting the requirements of compressed air quality in various application scenarios, reducing the possibility of dust and other impurities entering the compressor and adhering to the piston, cylinder wall or other key components, extending the service life and sealing performance of the compressor. At the same time, the filter is convenient and quick to replace, and easy to maintain and clean.

[0008] Optionally, the disassembly and assembly component includes a disassembly and assembly snap ring, which is arranged at the open end of the filter cartridge, and a through hole for air circulation is opened at the center of the disassembly and assembly snap ring, and the diameter of the through hole is smaller than the inner diameter of the activated carbon filter.

[0009] By adopting the above technical solution, the disassembly and assembly components include a disassembly and assembly clamp ring; through the setting of the disassembly and assembly clamp ring, the disassembly and assembly of the filter cartridge becomes very convenient, which improves the replacement efficiency and reduces the difficulty of operation. At the same time, it also plays a role in fixing and supporting the multi-layer filter screen, avoiding the possibility of the filter screen shifting or falling off due to vibration or airflow.

[0010] Optionally, the disassembly and assembly component further comprises two buckle blocks, the two buckle blocks are symmetrically connected to two sides of the disassembly and assembly clamping ring, and a buckle groove cooperating with the buckle blocks is formed on the inner wall of the filter cartridge.

[0011] By adopting the above technical solution, the disassembly and assembly component also includes two snap blocks, which are integrally formed on the disassembly and assembly snap ring, and the snap blocks cooperate with the snap grooves; through the setting of the snap blocks and the snap grooves, they can be quickly locked to fix the position of the disassembly and assembly snap ring and the filter cartridge, simplifying the installation process and improving the stability of the installation.

[0012] Optionally, the mesh number of the fiber filter is greater than the mesh number of the wire filter, and the exterior of the fiber filter is arranged in a wave shape along its own circumferential direction.

[0013] By adopting the above technical solution, the mesh number of the fiber filter is greater than the mesh number of the wire filter; by setting the mesh number and shape of the fiber filter, the mesh number of the fiber filter can be selected to intercept finer particles and impurities, thereby enhancing the filter mechanism's ability to capture tiny particles in the air, thereby improving the filtration efficiency. At the same time, the design of the fiber filter shape increases the filtration area, can handle more air flow, and helps to extend the service life of the filter and reduce the frequency of filter replacement.

[0014] Optionally, the working mechanism includes a piston, a connecting rod and a crankshaft, the piston being slidably connected in the cylinder body, one end of the connecting rod being connected to the piston, the other end of the connecting rod being connected to an eccentric block, the eccentric block being connected to the crankshaft, and the crankshaft being rotatably connected to the fuselage and extending toward the outside of the fuselage.

[0015] By adopting the above technical solution, the working mechanism includes a piston, a connecting rod and a crankshaft; when the compressor is working, the external driving member drives the crankshaft to rotate, and the eccentric block rotates therewith due to its connection with the crankshaft. Due to the design of the eccentric block, a radial force is generated when the eccentric block rotates. This radial force is transmitted to the piston through the connecting rod, causing the piston to reciprocate in the cylinder body; through the settings of the piston, connecting rod and crankshaft, an efficient, smooth and reliable compression process can be achieved to meet the compressed air requirements of various application scenarios.

[0016] Optionally, a plurality of sealing gaskets for sealing are provided on the outer wall of the piston, and the plurality of sealing gaskets are arranged in sequence along the thickness direction of the piston.

[0017] By adopting the above technical solution, the sealing gasket is installed on the outer wall of the piston; through the setting of the sealing gasket, the sealing between the piston and the cylinder body is ensured, which can effectively prevent gas leakage, thereby maintaining the high efficiency and continuity of the compression process, while reducing the friction between the piston and the cylinder body, reducing energy loss, and improving the efficiency of the compressor.

[0018] Optionally, a plurality of sealing embedding grooves are provided on the outer wall of the piston, each of the sealing embedding grooves is arranged along the circumferential direction of the piston, and the plurality of sealing embedding grooves correspond one-to-one to a plurality of sealing gaskets, and the sealing gaskets are arranged in the corresponding sealing embedding grooves.

[0019] By adopting the above technical solution, a sealing groove is opened on the piston, and a sealing gasket is installed in the sealing groove. By setting the sealing groove, the influence of depressions or other uneven surfaces on the surface around the interface on the sealing can be overcome, thereby obtaining a better sealing effect. At the same time, the sealing ring placed in the sealing groove will be more stable and not easy to move or fall off.

[0020] Optionally, a plurality of heat dissipation fins for heat dissipation are arranged on the outer wall of the cylinder body, and the plurality of heat dissipation fins are arranged at equal distances along the length direction of the cylinder body.

[0021] By adopting the above technical solution, the heat dissipation fins are welded to the outer wall of the cylinder body; through the setting of the heat dissipation fins, heat can be dissipated in time to prevent overheating, so that heat can be transferred to the external environment more quickly, the heat dissipation area of ​​the cylinder body is increased, the heat dissipation efficiency of the cylinder body is improved, which helps to reduce the possibility of deformation or cracks of the cylinder body due to thermal stress, and improves the reliability and stability of the compressor.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] Through the setting of filter cartridge, wire filter, fiber filter and activated carbon filter, multiple filtering effects are provided, from intercepting large dust particles to adsorbing tiny particles and harmful gases. Each layer of filter plays a key role, ensuring the quality of air entering the compressor, meeting the requirements of compressed air quality in various application scenarios, reducing the possibility of dust and other impurities entering the compressor and adhering to the piston, cylinder wall or other key components, extending the service life and sealing performance of the compressor. At the same time, the filter is convenient and quick to replace, easy to maintain and clean;

[0024] By setting the mesh number and shape of the fiber filter, the mesh number of the fiber filter can intercept finer particles and impurities, enhance the ability of the filter mechanism to capture tiny particles in the air, thereby improving the filtration efficiency. At the same time, the design of the shape of the fiber filter increases the filtration area, can handle more air flow, and help to extend the service life of the filter and reduce the frequency of filter replacement;

[0025] By setting the sealing gasket, the sealing between the piston and the cylinder is ensured, which can effectively prevent gas leakage, thereby maintaining the efficiency and continuity of the compression process, while reducing the friction between the piston and the cylinder, reducing energy loss and improving the efficiency of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a main head structure of a reciprocating piston compressor in an embodiment of the present application.

[0027] Figure 2 It is an exploded schematic diagram used to illustrate the filtering mechanism in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view of a main head structure of a reciprocating piston compressor in an embodiment of the present application.

[0029] Explanation of the reference numerals: 1. body; 2. cylinder block; 21. intake pipe; 22. exhaust pipe; 23. cooling fins; 3. working mechanism; 31. piston; 32. connecting rod; 33. crankshaft; 34. eccentric block; 4. filtering mechanism; 41. filter cartridge; 411. grille; 42. wire filter; 43. fiber filter; 44. activated carbon filter; 5. disassembly and assembly component; 51. disassembly and assembly snap ring; 52. snap block; 6. through hole; 7. snap groove; 8. sealing gasket; 9. sealing embedding groove. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a main head structure of a reciprocating piston compressor. Figure 1 The main head structure of the reciprocating piston compressor includes a body 1, on which a cylinder body 2 is fixedly mounted. In this embodiment, the cylinder body 2 is connected to the inside of the body 1, a working mechanism 3 is installed in the cylinder body 2, and an intake pipe 21 and an exhaust pipe 22 are respectively installed on the cylinder body 2, and an intake valve and an exhaust valve are respectively arranged on the intake pipe 21 and the exhaust pipe 22, and the intake pipe 21 and the exhaust pipe 22 are respectively used for the introduction of air and the discharge of compressed air.

[0032] Reference Figure 1 A plurality of heat dissipation fins 23 are welded and fixed on the outer wall of the cylinder body 2. The plurality of heat dissipation fins 23 are installed equidistantly along the length direction of the cylinder body 2 to dissipate heat in time to prevent overheating, so that heat can be transferred to the external environment more quickly, thereby increasing the heat dissipation area of ​​the cylinder body 2, improving the heat dissipation efficiency of the cylinder body 2, helping to reduce the possibility of deformation or cracks of the cylinder body 2 due to thermal stress, and improving the reliability and stability of the compressor.

[0033] Reference Figure 1 and Figure 2A filter mechanism 4 is installed at the air inlet of the air inlet pipe 21. The filter mechanism 4 includes a filter cartridge 41, a wire filter screen 42, a fiber filter screen 43 and an activated carbon filter screen 44. The filter cartridge 41 can be detachably installed on the air inlet pipe 21. The filter cartridge 41 is a hollow cylindrical structure. A grille 411 is provided on the outer wall of the filter cartridge 41. The grille 411 is provided along the circumferential direction of the filter cartridge 41. The grille 411 intercepts larger dust particles to perform preliminary filtration of the air.

[0034] Reference Figure 2 The wire filter 42, the fiber filter 43 and the activated carbon filter 44 are installed in the filter cartridge 41 from the outside to the inside in sequence. The wire filter 42 is woven from fine steel wires to further intercept smaller dust particles and impurities, ensuring that only relatively clean air can pass through.

[0035] Reference Figure 2 The mesh number of the fiber filter 43 is greater than the mesh number of the wire filter 42. The outside of the fiber filter 43 is arranged in a wave shape along its own circumferential direction. The fiber filter 43 is made of a material with a high fiber density and has a finer filtering ability and can capture smaller particles, such as dust and pollen. At the same time, the shape design of the fiber filter 43 increases the filtering area, can handle more air flow, and helps to extend the service life of the filter and reduce the frequency of filter replacement.

[0036] Reference Figure 2 The activated carbon filter 44 is located inside the fiber filter 43, and utilizes the adsorption performance of the activated carbon to further remove odors, harmful gases and volatile organic compounds in the air, thereby achieving air filtering.

[0037] Reference Figure 2 A disassembly assembly 5 is installed in the filter cartridge 41, and the disassembly assembly 5 includes a disassembly snap ring 51 and two snap blocks 52. The disassembly snap ring 51 is installed at the open end of the filter cartridge 41. In this embodiment, the side of the filter cartridge 41 close to the air inlet pipe 21 is the open end. A through hole 6 is opened at the center of the disassembly card plate. The diameter of the through hole 6 is smaller than the inner diameter of the activated carbon filter 44, ensuring that the air enters the air inlet pipe 21 through the through hole 6 after multiple filtration treatments.

[0038] Reference Figure 2 The snap block 52 is integrally formed on the disassembly snap ring 51. In this embodiment, the two snap blocks 52 are symmetrically installed on both sides of the disassembly snap ring 51. Two snap grooves 7 are opened on the inner wall of the filter cartridge 41. The two snap blocks 52 correspond to the two snap grooves 7 respectively. The snap blocks 52 are inserted and fixed in the snap grooves 7 and can be quickly locked, thereby fixing the position of the disassembly snap ring 51 and the filter cartridge 41, simplifying the installation process and improving the stability of the installation.

[0039] Reference Figure 3The working mechanism 3 includes a piston 31, a connecting rod 32 and a crankshaft 33. The crankshaft 33 is rotatably connected to the fuselage 1. In this embodiment, the end of the crankshaft 33 passes through the fuselage 1 and extends to the outside of the fuselage 1. The crankshaft 33 is connected to an external driving member. An eccentric block 34 is installed on the crankshaft 33. One end of the connecting rod 32 is hingedly installed on the eccentric block 34, and the other end of the connecting rod 32 is hingedly connected to the piston 31. The piston 31 is slidably connected in the cylinder body 2; when the compressor is working, the external driving member drives the crankshaft 33 to rotate, and the eccentric block 34 rotates therewith due to its connection with the crankshaft 33. Due to the design of the eccentric block 34, a radial force is generated when the eccentric block 34 rotates. This radial force is transmitted to the piston 31 through the connecting rod 32, so that the piston 31 reciprocates in the cylinder body 2.

[0040] Reference Figure 3 A plurality of sealing embedding grooves 9 are provided on the outer wall of the piston 31, and the sealing embedding grooves 9 are provided along the circumferential direction of the piston 31. A sealing gasket 8 is embedded in each sealing embedding groove 9, and the sealing gasket 8 is used to ensure the sealing between the piston 31 and the cylinder body 2, and can effectively prevent gas leakage, thereby maintaining the high efficiency and continuity of the compression process, while reducing the friction between the piston 31 and the cylinder body 2, reducing energy loss, and improving the efficiency of the compressor.

[0041] The implementation principle of the main head structure of a reciprocating piston compressor in the embodiment of the present application is as follows: when the compressor is working, the external driving member drives the crankshaft 33 to rotate, and the eccentric block 34, which is connected to the crankshaft 33, rotates together with it. Due to the design of the eccentric block 34, a radial force is generated when the eccentric block 34 rotates. This radial force is transmitted to the piston 31 through the connecting rod 32, so that the piston 31 reciprocates in the cylinder body 2;

[0042] During this process, the pressure in the cylinder 2 drops, and the air intake valve on the air intake pipe 21 opens automatically. The outside air is initially filtered through the grille of the filter cartridge 41 to intercept larger dust particles, and then enters the interior of the filter cartridge 41, where it first encounters the wire filter 42, which is woven from fine steel wires and further intercepts smaller dust particles and impurities to ensure that only relatively clean air can pass through. After passing through the wire filter 42, the air continues to enter the fiber filter 43 area, which is made of a material with a high fiber density and has a finer filtering ability, and can capture smaller particles, such as dust and pollen. Finally, the air passes through the activated carbon filter 44, which uses the adsorption properties of activated carbon to further remove odors, harmful gases and volatile organic compounds in the air. The filtered air enters the cylinder 2 until the air in the cylinder 2 is compressed, and the exhaust valve on the exhaust pipe 22 opens automatically to discharge the compressed air.

[0043] Through the arrangement of the filter cartridge 41, the wire filter 42, the fiber filter 43 and the activated carbon filter 44, multiple filtering effects are provided, from intercepting large dust particles to adsorbing tiny particles and harmful gases. Each layer of the filter plays a key role, ensuring the quality of air entering the compressor, meeting the requirements of various application scenarios for compressed air quality, reducing the possibility of dust and other impurities entering the compressor and adhering to the piston 31, the cylinder wall or other key components, extending the service life and sealing performance of the compressor. At the same time, the filter is quick and convenient to replace, and easy to maintain and clean.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A main head structure of a reciprocating piston compressor, characterized in that: The invention comprises a machine body (1), wherein a cylinder body (2) is arranged on the machine body (1), wherein the cylinder body (2) is connected to the inside of the machine body (1), wherein an air intake pipe (21) and an exhaust pipe (22) are respectively arranged on the cylinder body (2), wherein a working mechanism (3) for working is arranged inside the cylinder body (2), wherein a filtering mechanism (4) for filtering dust is arranged at the air inlet of the air intake pipe (21), wherein the filtering mechanism (4) comprises a filtering cartridge (41), a steel wire filter ( The filter cartridge (41) is connected to the air inlet of the air inlet pipe (21); a grille (411) for blocking dust is provided on the outer wall of the filter cartridge (41); the steel wire filter (42), the fiber filter (43) and the activated carbon filter (44) are sequentially installed in the filter cartridge (41) from the outside to the inside; and a disassembly assembly (5) for disassembling and assembling the filter is installed in the filter cartridge (41).

2. The main head structure of a reciprocating piston compressor according to claim 1, characterized in that: The disassembly assembly (5) comprises a disassembly snap ring (51), the disassembly snap ring (51) is arranged at the open end of the filter cartridge (41), a through hole (6) for air circulation is provided at the center of the disassembly snap ring (51), and the diameter of the through hole (6) is smaller than the inner diameter of the activated carbon filter (44).

3. A reciprocating piston compressor main head structure according to claim 2, characterized in that: The disassembly assembly (5) further comprises two buckle blocks (52), the two buckle blocks (52) being symmetrically connected to the two sides of the disassembly clamp ring (51), and a buckle groove (7) cooperating with the buckle blocks (52) is provided on the inner wall of the filter cartridge (41).

4. The main head structure of a reciprocating piston compressor according to claim 1, characterized in that: The mesh number of the fiber filter (43) is greater than the mesh number of the wire filter (42), and the outside of the fiber filter (43) is arranged in a wave shape along its own circumferential direction.

5. The main head structure of a reciprocating piston compressor according to claim 1, characterized in that: The working mechanism (3) comprises a piston (31), a connecting rod (32) and a crankshaft (33); the piston (31) is slidably connected in the cylinder body (2); one end of the connecting rod (32) is connected to the piston (31); the other end of the connecting rod (32) is connected to an eccentric block (34); the eccentric block (34) is connected to the crankshaft (33); and the crankshaft (33) is rotatably connected to the fuselage (1) and extends toward the outside of the fuselage (1).

6. The main head structure of a reciprocating piston compressor according to claim 5, characterized in that: A plurality of sealing gaskets (8) for sealing are arranged on the outer wall of the piston (31), and the plurality of sealing gaskets (8) are arranged in sequence along the thickness direction of the piston (31).

7. A reciprocating piston compressor main head structure according to claim 6, characterized in that: A plurality of sealing embedding grooves (9) are provided on the outer wall of the piston (31), each of the sealing embedding grooves (9) is arranged along the circumferential direction of the piston (31), and the plurality of sealing embedding grooves (9) correspond to a plurality of sealing gaskets (8) one by one, and the sealing gaskets (8) are arranged in the corresponding sealing embedding grooves (9).

8. The main head structure of a reciprocating piston compressor according to claim 1, characterized in that: A plurality of heat dissipation fins (23) for dissipating heat are arranged on the outer wall of the cylinder body (2), and the plurality of heat dissipation fins (23) are arranged at equal distances along the length direction of the cylinder body (2).

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