A new composite valve plate structure for a piston compressor

Abstract

The utility model relates to a novel composite valve plate structure for piston compressor, including valve plate body and the exhaust valve seat of setting in the valve plate body, the exhaust valve seat below is provided with exhaust valve piece, and the elastic piece is connected between this exhaust valve piece and exhaust valve seat. The utility model has the advantages of simple structure, reasonable design, convenient to use, and through automatic opening and closing exhaust valve, optimizes the structure, guarantees that valve plate is stable, efficient, reliable operation.

Description

Technical Field

[0001] This utility model relates to a novel composite valve plate structure for piston compressors. Background Technology

[0002] A reciprocating compressor operates by continuously changing the working volume formed by the cylinder, valves, and the piston reciprocating within the cylinder. If we disregard volumetric and energy losses during actual operation (i.e., the ideal working process), the work completed by the crankshaft of a reciprocating compressor per revolution can be divided into intake, compression, and exhaust processes. In a reciprocating compressor, the valve plate, as a core component, plays an irreplaceable and crucial role in precise airflow control, efficient compressor operation, and ensuring stability and lifespan. However, existing valve plates are clearly insufficient in these aspects. Utility Model Content

[0003] This invention addresses the aforementioned problems by providing a novel composite valve plate structure for piston compressors, ensuring stable, efficient, and reliable valve plate operation.

[0004] The utility model is constructed as follows: it includes a valve plate body and an exhaust valve seat disposed in the valve plate body. An exhaust valve plate is disposed below the exhaust valve seat, and the exhaust valve plate and the exhaust valve seat are connected by an elastic element.

[0005] Furthermore, an air intake channel is provided around the valve plate, and an annular air intake valve plate is provided at the output end of the air intake channel. The air intake valve plate is used to close or open the air intake channel. An exhaust channel is provided around the exhaust valve seat, and the exhaust valve plate is used to close or open the exhaust channel.

[0006] Furthermore, the intake valve plate is positioned on both sides by positioning pins on the valve plate body and the cylinder.

[0007] Furthermore, a valve seat pressure plate for limiting the position is provided above the exhaust valve seat, and the valve seat pressure plate is limited to the valve plate body by fastening bolts.

[0008] Furthermore, a protrusion is provided above the exhaust valve seat, and a through hole is provided in the middle of the valve seat pressure plate. The protrusion extends into the through hole and cooperates with it.

[0009] Furthermore, the valve plate body is provided with a groove for installing an exhaust valve seat and an exhaust valve plate, and the bottom surface of the groove is provided with an opening.

[0010] Furthermore, a compressor housing is provided below the valve plate, a cylinder is provided inside the compressor housing, and a piston is provided inside the cylinder.

[0011] Furthermore, the elastic element is a spring.

[0012] Furthermore, the exhaust valve seat is provided with a guide hole, and the exhaust valve plate can move along the guide hole.

[0013] Furthermore, the intake valve plate and exhaust valve plate are made of spring steel.

[0014] Compared with the prior art, this utility model has the following beneficial effects: The device has a simple structure, reasonable design, and is easy to use. When the piston moves to the lower dead center, the air pressure in the cylinder decreases, and the spring can push the exhaust valve plate to move towards the cylinder side and fit against the valve plate body, realizing the function of automatically closing the exhaust valve. Since the intake valve plate is made of spring steel, when the piston moves to the lower dead center, the pressure change in the cylinder causes the intake valve plate to bend and deform, realizing the function of automatically opening the intake valve plate. When the piston moves to the upper dead center, the pressure in the cylinder increases, and the intake valve plate fits against the intake channel on the valve plate body, realizing the function of automatically closing the intake valve plate. At the same time, the air pressure will overcome the spring force to push the exhaust valve plate to move, realizing the function of automatically opening the exhaust valve. By evenly arranging the exhaust channels around the exhaust valve seat 1, the exhaust airflow can be evenly discharged along the channels, making the exhaust airflow more stable and effectively reducing compressor noise, vibration, and pressure loss. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air intake process in an embodiment of the present invention; Figure 2 This is a schematic diagram of the exhaust process structure in an embodiment of the present invention; Figure 3 This is an exploded view of a partial structure of an embodiment of the present utility model; In the diagram: 1-exhaust valve seat, 2-valve seat pressure plate, 3-spring, 4-exhaust valve plate, 5-valve plate body, 6-intake valve plate, 7-fastening bolt, 8-positioning pin, 9-piston, 10-cylinder, 11-compressor housing. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Example: Figure 1-3 As shown, a novel composite valve plate structure for a piston compressor is provided, including a valve plate body 5 and an exhaust valve seat 1 disposed in the valve plate body. An exhaust valve plate 4 is disposed below the exhaust valve seat, and the exhaust valve plate and the exhaust valve seat are connected by an elastic element; the elastic element may be a spring 3.

[0018] The exhaust valve seat described above has a guide hole inside, and the exhaust valve plate can move along the guide hole.

[0019] The aforementioned exhaust valve seat also has a spring seat hole for installing a spring.

[0020] In this embodiment of the utility model, an air intake channel is provided around the valve plate body, and an annular air intake valve plate is provided at the output end of the air intake channel. The air intake valve plate is used to close or open the air intake channel. The cavity in the middle of the air intake valve plate is connected to the opening of the valve plate body, and the rest of the air intake valve plate is in contact with the air intake channel. An exhaust channel is provided around the exhaust valve seat, and the exhaust valve plate is used to close or open the exhaust channel.

[0021] The intake valve plate 6 adopts a ring design, which makes the force on the intake valve plate 6 more uniform and the intake airflow more stable, greatly improving the operating stability and reliability of the compressor.

[0022] In this embodiment of the utility model, the intake valve plate is positioned on both sides by positioning pins 8 on the valve plate body and the cylinder.

[0023] In this embodiment of the utility model, a valve seat pressure plate 2 for limiting the position is provided above the exhaust valve seat, and the valve seat pressure plate is limited to the valve plate body by fastening bolts 7.

[0024] In this embodiment of the utility model, a protrusion is provided above the exhaust valve seat, and a through hole is provided in the middle of the valve seat pressure plate. The protrusion extends into the through hole and cooperates with it. During installation, the protrusion of the exhaust valve seat is embedded into the through hole and locked with the fastening bolt 7. This co-positioning structure reliably ensures the positioning and fastening of the exhaust valve seat.

[0025] In this embodiment of the utility model, a groove is provided on the valve plate body for installing an exhaust valve seat and an exhaust valve plate, and an opening is provided on the bottom surface of the groove.

[0026] The exhaust valve plate 4 and exhaust valve seat 1 mentioned above adopt a recessed design and are installed in the recessed groove on the valve plate body 5 to reduce the compression clearance volume, reduce the repeated compression of residual gas in the cylinder, and greatly improve the compression efficiency.

[0027] In this embodiment of the utility model, a compressor housing 11 is provided below the valve plate, a cylinder 10 is provided inside the compressor housing, and a piston 9 is provided inside the cylinder.

[0028] In this embodiment of the utility model, the intake valve plate and the exhaust valve plate are made of spring steel.

[0029] In this embodiment of the utility model, during air intake: when the piston moves to the lower dead center, the air pressure in the cylinder decreases, and the spring can push the exhaust valve plate 4 to move towards the cylinder side and fit against the valve plate body, thereby realizing the function of automatically closing the exhaust valve; since the intake valve plate is made of spring steel, when the piston 9 moves to the lower dead center, the pressure change in the cylinder 10 causes the intake valve plate 6 to bend and deform, thereby realizing the function of automatically opening the intake valve plate.

[0030] During exhaust: When piston 9 moves to the upper dead center, the pressure inside cylinder 10 increases, and intake valve plate 6 fits into the intake channel on valve plate body 5, realizing the function of automatic closing of intake valve plate; at the same time, the air pressure will overcome the spring force to push exhaust valve plate 4 to move, realizing the function of automatic opening of exhaust valve. By evenly arranging exhaust channels around exhaust valve seat 1, exhaust airflow can be evenly discharged in all directions along the channels, making exhaust airflow more stable, which can effectively reduce compressor noise, vibration and pressure loss.

[0031] In addition, the exhaust valve seat 1 is provided with a lift limit surface, which can accurately control the lift height of the exhaust valve plate, reduce the impact of the exhaust valve plate 4, and greatly improve the reliability and durability of the exhaust valve plate 4.

[0032] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0033] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0034] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (e.g., manufactured by casting process) (except where it is obviously impossible to use an integral forming process).

[0035] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0036] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A novel composite valve plate structure for a piston compressor, characterized in that, It includes a valve plate body and an exhaust valve seat disposed in the valve plate body. An exhaust valve plate is disposed below the exhaust valve seat, and the exhaust valve plate is connected to the exhaust valve seat by an elastic element.

2. The novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, An air intake channel is provided around the valve plate, and an annular air intake valve plate is provided at the output end of the air intake channel. The air intake valve plate is used to close or open the air intake channel. An exhaust channel is provided around the exhaust valve seat, and the exhaust valve plate is used to close or open the exhaust channel.

3. A novel composite valve plate structure for a piston compressor according to claim 2, characterized in that, The intake valve plate is positioned on both sides by positioning pins on the valve plate body and the cylinder.

4. A novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, A valve seat pressure plate for limiting the position is provided above the exhaust valve seat, and the valve seat pressure plate is limited to the valve plate body by fastening bolts.

5. A novel composite valve plate structure for a piston compressor according to claim 4, characterized in that, A protrusion is provided above the exhaust valve seat, and a through hole is provided in the middle of the valve seat pressure plate. The protrusion extends into the through hole and cooperates with it.

6. A novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, The valve plate body is provided with a groove for installing the exhaust valve seat and exhaust valve plate, and the bottom surface of the groove is provided with an opening.

7. A novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, Below the valve plate is a compressor housing, inside which is a cylinder, and inside which is a piston.

8. A novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, The elastic element is a spring.

9. A novel composite valve plate structure for a piston compressor according to claim 1, characterized in that, The exhaust valve seat has a guide hole inside, and the exhaust valve plate can move along the guide hole.

10. A novel composite valve plate structure for a piston compressor according to claim 2, characterized in that, The intake valve plate and exhaust valve plate are made of spring steel.

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