Air suction supplementing structure of piston compressor

Abstract

The utility model discloses an air suction supplementing structure of a piston compressor, and belongs to the technical field of compressors. An air suction supplementing structure of a piston compressor comprises an air cylinder seat and an air suction silencing cavity which are installed on the piston compressor, a cylinder hole and an exhaust cavity are formed in the air cylinder seat, an air supplementing cavity is formed in the air cylinder seat, an air supplementing hole communicated with the cylinder hole is formed in the side wall of the air supplementing cavity, an air supplementing cover is arranged at the end of the air supplementing cavity, and the air supplementing cover is arranged on the air cylinder seat. The air supply cover is communicated with a connecting pipe, and the other end of the connecting pipe is connected with the air suction silencing cavity; due to the fact that the air supplementing cavity and the air supplementing hole are ingeniously additionally formed in the air cylinder seat and connected to the air suction noise reduction cavity, air can be effectively supplemented in the air suction process of the piston compressor, the design increases the air amount in the air cylinder, optimizes the flowing path of the air, remarkably improves the air suction efficiency, and further improves the air suction noise reduction effect of the piston compressor. Under the same condition, the refrigerating capacity of the compressor is improved, and the overall performance is remarkably enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to an air intake and replenishing structure for a piston compressor. Background Art

[0002] A piston compressor is a common type of compressor that compresses gas by reciprocating the piston in the cylinder. The working principle of a piston compressor is to compress the gas into high-pressure gas by the reciprocating motion of the piston in the cylinder. When the piston moves downward, the gas in the cylinder is sucked in, and then the piston moves upward to compress the gas. The compressed gas is discharged through the exhaust valve, thereby generating high-pressure gas.

[0003] In the existing piston compressor, during the suction and exhaust process of the cylinder, when the piston is pulled back at the position of the valve group, the internal pressure of the cylinder drops rapidly, and the valve tongue of the suction valve plate is pushed open under the pressure difference between the inside and the outside, and the gas flows into the cylinder. After the crankshaft rotates past the top dead center, the suction valve closes, compressing the refrigerant gas in the cylinder. When the gas pressure in the cylinder reaches a certain pressure, the exhaust valve opens to complete the exhaust process.

[0004] When the crankshaft rotation speed of the piston compressor is accelerated, the suction time is shortened. Since the suction valve tongue has no unlimited baffle, the opening range of the suction valve tongue will be increased. During long-term operation, the service life of the suction valve tongue will be greatly shortened, causing the compressor to fail. At the same time, when the suction is completed and converted into compressed gas, the suction valve tongue needs to be closed in a very short time. The impact force and noise of the suction valve tongue increase, affecting the service life and noise of the suction valve tongue, and the closing time of the suction valve tongue is relatively slightly extended, which reduces the suction efficiency. Summary of the Invention

[0005] The purpose of the utility model is to provide an air intake supplement structure for a piston compressor in order to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a piston compressor intake supplement structure, including a cylinder seat and an intake muffler chamber installed on the piston compressor, the cylinder seat is provided with a cylinder hole and an exhaust chamber, the cylinder seat is provided with an air supplement chamber, the side wall of the air supplement chamber is provided with an air supplement hole connected to the cylinder hole, the end of the air supplement chamber is provided with an air supplement cover, the air supplement cover is connected to a connecting pipe, and the other end of the connecting pipe is connected to the intake muffler chamber.

[0007] By adopting the above-mentioned technical solution, the piston compressor suction supplement structure provided by the utility model has achieved significant technological progress and innovation in the technical field, and has significant beneficial effects. It can not only improve the suction efficiency and refrigeration performance of the compressor, extend the service life of the suction valve tongue, reduce noise and production costs, but also has the advantages of simple structure, easy installation and maintenance, and strong flexibility and adaptability.

[0008] Optionally, the depth of the air-supply chamber is 18mm-20mm, the height is 25mm-30mm, and the diameter is 12mm-18mm, and the air-supply chamber and the exhaust chamber are symmetrically distributed on both sides of the cylinder hole.

[0009] By adopting the above technical solution, the air supply chamber and the exhaust chamber have the same specifications and are symmetrically distributed on both sides of the cylinder hole. This design ensures that the air supply and exhaust processes can remain balanced when the compressor is running. The symmetrical layout helps to reduce the uneven stress distribution inside the compressor and improve the stability and durability of the overall structure.

[0010] Optionally, the air supply hole is opened in the middle and rear section of the cylinder hole.

[0011] By adopting the above-mentioned technical solution, the air supply hole is opened in the middle and rear section of the cylinder bore. This means that in the process of the piston compressing the gas, when the piston approaches or reaches the middle and rear section of the cylinder bore, the air supply hole begins to provide additional gas to the compressor. This design helps to optimize the suction efficiency of the compressor, especially in application scenarios with high load or requiring a larger gas compression volume. In addition, it can also reduce the opening amplitude and impact force of the suction valve tongue, thereby extending its service life.

[0012] Optionally, the air-supply hole is circular, arc-shaped or square, and the diameter of the air-supply hole is 4mm-8mm.

[0013] By adopting the above technical solution, the shape of the air supply hole is designed to be circular, arc-shaped or square, providing a variety of options to adapt to different compressor designs and application requirements. Circular air supply holes are easy to process and manufacture, while arc-shaped and square air supply holes may provide better gas flow characteristics in some cases. This flexibility allows designers to select the most appropriate air supply hole shape according to actual conditions to achieve optimal compressor performance and efficiency.

[0014] Optionally, the air supply cover is provided with a sealing ring for sealing the end of the air supply cavity.

[0015] By adopting the above technical solution and providing a sealing ring on the air supply cover, the sealing performance of the air supply cavity can be ensured and gas leakage can be prevented, which helps to improve the efficiency and performance of the compressor while reducing energy waste and environmental pollution. The high elasticity and wear resistance of the sealing ring ensure the stability and reliability of the air supply cavity cover during long-term use.

[0016] Optionally, the air supply cover is connected to the air supply cavity via fixing bolts.

[0017] By adopting the above technical solution, the air supply cover is connected to the air supply chamber by fixing bolts. This connection method is simple and firm, ensuring the stability and safety of the air supply chamber cover. The firmness and reliability of the fixing bolts ensure the stability and safety of the air supply chamber cover during the operation of the compressor, avoiding failures and accidents caused by loosening or falling off.

[0018] Optionally, the connecting pipe is a metal pipe, and the connecting pipe is in an "L" shape.

[0019] By adopting this technical solution, the connecting pipe is made of metal and designed in an "L" shape, ensuring stable and efficient gas transmission. The metal connecting pipe has excellent corrosion and high temperature resistance, and can maintain stable performance in harsh operating environments. At the same time, the "L" shape allows the connecting pipe to flexibly adapt to different compressor layouts and installation requirements, improving the flexibility and adaptability of the compressor.

[0020] Optionally, an air supply hole is provided on the inner side wall of the cylinder hole, and one end of the air supply hole away from the cylinder hole is connected to the air suction muffler cavity.

[0021] By adopting the above technical solution, the air supply hole has multiple connection methods. It can be connected to an external air supply cavity to provide additional gas supply, or it can be connected to an external suction silencer cavity to reduce noise.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By cleverly adding an air-supply cavity and an air-supply hole on the cylinder seat and connecting them to the intake muffler cavity, the utility model can achieve effective gas replenishment during the intake process of the piston compressor. This design not only increases the amount of gas in the cylinder, but also optimizes the flow path of the gas, thereby significantly improving the intake efficiency. Furthermore, under the same conditions, the cooling capacity of the compressor is improved and the overall performance is significantly enhanced; 2. By adding an air-supply hole in the middle and rear sections, the utility model effectively alleviates the intake flow of the intake valve and reduces the opening amplitude of the intake valve tongue, which not only reduces the wear of the valve tongue, but also extends its service life and reduces the maintenance cost of the compressor. , the design of the air supply hole enables the air supply valve tongue to close more promptly when the suction process is converted to the compression process, reducing gas leakage and thus improving the exhaust efficiency. At the same time, due to the reduction in the opening amplitude of the air supply valve tongue, its impact force at the moment of closing is also reduced, reducing the slapping noise of the air supply valve tongue, which not only improves the operating environment of the compressor, but also enhances the user experience; 3. The air supply structure of the utility model is relatively simple and can be easily installed without large-scale modification of the compressor. At the same time, the air supply cover is connected to the air supply cavity by fixing bolts, and the connecting pipe is also made of metal that is easy to process, making the entire structure easy to maintain. This not only reduces production costs, but also facilitates user use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the piston compressor of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the cylinder seat of the utility model;

[0026] Figure 3 This is a schematic diagram of the three-dimensional connection structure between the cylinder seat and the air supply hole of the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the existing cylinder seat of the present utility model.

[0028] In the figure: 1. Piston compressor; 2. Cylinder seat; 3. Cylinder hole; 4. Intake and silencer chamber; 5. Exhaust chamber; 6. Air supply chamber; 7. Air supply hole; 8. Air supply cover; 9. Connecting pipe. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] like Figure 1 —4, the specific scheme of the embodiment is as follows: a piston compressor intake and replenishment structure, comprising a cylinder seat 2 and an intake and replenishment muffler chamber 4 installed on the piston compressor 1, the cylinder seat 2 is the basic supporting component of the intake and replenishment structure of the piston compressor 1, and is responsible for fixing key components such as the cylinder hole 3, the exhaust chamber 5 and the air replenishment chamber 6 to ensure the relative position and stability between them, the solid design and precise processing of the cylinder seat 2 ensure the accuracy and reliability of each component of the compressor during operation, and provide a stable environment for the compression and replenishment of gas, the main function of the intake and replenishment muffler chamber 4 is to reduce the noise generated by the piston compressor 1 during the intake process, improve the working environment, and reduce interference with the surrounding environment, through the optimized design of the internal structure, the intake and replenishment muffler chamber 4 can effectively absorb and disperse noise, making the operation of the compressor quieter and improving the user experience;

[0032] The cylinder base 2 is provided with a cylinder bore 3 and an exhaust chamber 5. The cylinder bore 3 is the main working space for the piston compressor 1 to compress gas. The piston reciprocates therein to realize the suction, compression and discharge of gas. The design of the cylinder bore 3 is directly related to the performance and efficiency of the compressor. Its precise size and shape ensure the stability and reliability of the gas compression process. The exhaust chamber 5 is used to collect and discharge the compressed gas to ensure that the gas can be discharged smoothly from the compressor and avoid gas accumulation inside the compressor. The design of the exhaust chamber 5 ensures that the compressed gas can be discharged efficiently, thereby improving the exhaust efficiency and performance of the compressor.

[0033] The cylinder block 2 is provided with an air supply chamber 6, which is one of the core components of the suction and replenishment structure of the piston compressor 1. The air supply chamber 6 provides additional gas replenishment for the compressor by opening an air supply hole 7 in the middle and rear section of the cylinder bore 3. The introduction of the air supply chamber 6 improves the suction efficiency of the compressor and increases the gas compression volume, thereby improving the refrigeration performance and overall efficiency of the compressor. The air supply chamber 6 has a depth of 18mm-20mm, a height of 25mm-30mm, and a diameter of 12mm-18mm. The air supply chamber 6 and the exhaust chamber 5 are symmetrically distributed on both sides of the cylinder bore 3.

[0034] The side wall of the air-supply cavity 6 is provided with an air-supply hole 7 connected to the cylinder hole 3. The air-supply hole 7 is located in the middle and rear section of the cylinder hole 3. The air-supply hole 7 is circular, arc-shaped or square-shaped. The diameter of the air-supply hole is 4mm-8mm.

[0035] An air supply hole is provided on the inner side wall of the cylinder hole, and one end of the air supply hole away from the cylinder hole is connected to the air suction muffler cavity;

[0036] The air supply hole 7 is a connecting channel between the air supply chamber 6 and the cylinder hole 3. It allows the gas in the air supply chamber 6 to enter the cylinder hole 3 when the piston moves to the middle and rear section of the cylinder hole 3, providing additional gas replenishment for the compressor. The design and optimization of the air supply hole 7 can significantly improve the suction efficiency and performance of the compressor, while reducing the opening amplitude and impact force of the suction valve tongue and extending its service life. The air supply hole 7 is opened on the side wall of the air supply chamber 6 through precision punching technology, and is directly connected to the cylinder hole 3. The shape and position of the air supply hole 7 can be adjusted according to actual needs to meet the needs of different compressor models and working conditions.

[0037] The end of the air-filling chamber 6 is provided with an air-filling cover 8, which is used to seal the end of the air-filling chamber 6 to prevent gas leakage and protect the components inside the air-filling chamber 6 from interference from the external environment. The sealing performance of the air-filling cover 8 is crucial to the performance and efficiency of the compressor. It can ensure that the gas in the air-filling chamber 6 will not leak into the external environment, thereby ensuring the normal operation of the compressor. The air-filling cover 8 is provided with a sealing ring for sealing the end of the air-filling chamber 6. The sealing ring is installed in the sealing groove of the air-filling cover 8 to seal the end of the air-filling chamber 6 to prevent gas leakage. The high elasticity and wear resistance of the sealing ring ensure the sealing performance of the air-filling cover 8, thereby ensuring the performance and efficiency of the compressor. The air-filling cover 8 is connected to the air-filling chamber 6 by fixing bolts. The interior of the air-filling chamber 6 is concave, and the side wall of the concave part is threaded. The fixing bolts are used to connect the air-filling cover 8 to the concave part inside the air-filling chamber 6 to ensure close fit and stability between them. The firmness and reliability of the fixing bolts ensure the stability and safety of the air-filling cover 8 during the operation of the compressor.

[0038] The air supply cover 8 is connected with a connecting pipe 9, which connects the air supply chamber 6 with the suction muffler chamber 4 to realize the circulation and replenishment of gas. The metal material and good sealing performance of the connecting pipe 9 ensure the stability and reliability of the gas during the circulation process, thereby improving the performance and efficiency of the compressor. The connecting pipe 9 is a metal pipe, and the connecting pipe 9 is "L"-shaped. The other end of the connecting pipe 9 is connected to the suction muffler chamber 4.

[0039] The working steps of the above embodiment are:

[0040] Intake stage: As the piston compressor 1 starts, the piston begins to move backward (or downward), the volume in the cylinder hole 3 gradually increases, forming a negative pressure, and thus intake begins. External gas enters the cylinder hole 3 through the intake port and begins to be compressed by the piston.

[0041] Compression stage: The piston continues to move backward (or downward), and the gas in the cylinder bore 3 is gradually compressed. As the piston moves, when the piston approaches the middle and rear section of the cylinder bore 3, the air supply hole 7 begins to prepare to provide additional gas to the piston compressor 1.

[0042] Air supply stage: When the piston moves to the middle and rear section of the cylinder bore 3, the air supply hole 7 is connected with the air supply chamber 6, and the gas in the air supply chamber 6 enters the cylinder bore 3 through the air supply hole 7, providing additional air supply for the piston compressor 1. The gas in the air supply chamber 6 mixes with the original gas in the cylinder bore 3 and is further compressed by the piston.

[0043] Exhaust stage: The piston moves to the end of the cylinder bore 3. At this time, the gas in the cylinder bore 3 has been fully compressed. The compressed gas is discharged from the compressor through the exhaust chamber 5 and enters the subsequent cooling or treatment process.

[0044] Reciprocating cycle: As the piston compressor 1 continues to operate, the piston begins to move forward (or upward) and returns to its initial position, preparing for the next round of air intake, compression, air replenishment and exhaust. The above process is continuously repeated, thereby realizing the continuous operation of the piston compressor 1.

[0045] During the entire working process, the suction muffler chamber 4 is always in play, reducing the noise generated by the piston compressor 1 during the suction process and improving the working environment. At the same time, the introduction of the air supply chamber 6 improves the suction efficiency and performance of the compressor, increases the compression volume of the gas, thereby improving the refrigeration performance and overall efficiency of the piston compressor 1. The design and optimization of the air supply hole 7 also plays a key role, which can significantly reduce the opening amplitude and impact force of the suction valve tongue and extend its service life.

[0046] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A piston compressor suction supplement structure, comprising a cylinder base and a suction muffler chamber mounted on the piston compressor, wherein the cylinder base is provided with a cylinder hole and an exhaust chamber, wherein: An air supply cavity is provided on the cylinder seat, an air supply hole connected to the cylinder hole is opened on the side wall of the air supply cavity, an air supply cover is provided at the end of the air supply cavity, a connecting pipe is connected to the air supply cover, and the other end of the connecting pipe is connected to the intake muffler cavity.

2. The suction supplement structure of a piston compressor according to claim 1, characterized in that: The depth of the air-supply cavity is 18mm-20mm, the height is 25mm-30mm, and the diameter is 12mm-18mm, and the air-supply cavity and the exhaust cavity are symmetrically distributed on both sides of the cylinder hole.

3. The suction replenishing structure of a piston compressor according to claim 1, characterized in that: The air supply hole is opened in the middle and rear section of the cylinder hole.

4. The suction supplement structure of a piston compressor according to claim 1, characterized in that: The air-supply hole is circular, arc-shaped or square, and the diameter of the air-supply hole is 4mm-8mm.

5. The suction supplement structure of a piston compressor according to claim 1, characterized in that: The air supply cover is provided with a sealing ring for sealing the end of the air supply cavity.

6. The suction supplement structure of a piston compressor according to claim 1, characterized in that: The air supply cover is connected to the air supply cavity through fixing bolts.

7. The suction supplement structure of a piston compressor according to claim 1, characterized in that: The connecting pipe is a metal pipe and is in an "L" shape.

8. The suction supplement structure of a piston compressor according to claim 1, characterized in that: An air supply hole is provided on the inner side wall of the cylinder hole, and one end of the air supply hole away from the cylinder hole is connected to the air suction and muffler cavity.

Images