High-energy-efficiency multi-cylinder compressor
By dividing the rotor cylinder of the large compressor into multiple small cylinders and sharing the gas-liquid separator, the problems of reduced energy efficiency and high vibration noise of the central air conditioner when operating at low frequency are solved, and high energy efficiency and silent shock absorption are achieved.
Patent Information
- Application Number
- CN202421810498.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The energy efficiency of the existing central air conditioner is reduced when operating at low frequency, and the vibration and noise of the large-displacement compressor is high, resulting in high energy consumption and poor noise of the whole machine.
A high-efficiency multi-cylinder compressor is designed to divide the large compressor rotor cylinder into multiple small compressor rotor cylinders, and set it around a gas-liquid separator. The corresponding number of small compressor rotor cylinders is turned on according to the needs to improve energy efficiency and reduce noise.
It achieves more efficiently providing different output capabilities under different usage needs, reducing energy consumption and noise, and improving the silent shock absorption effect of the compressor.
Smart Images
Figure CN222894368U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to a high-energy-efficiency multi-cylinder compressor. Background Art
[0002] When the indoor unit of a large-capacity central air conditioner is not fully turned on, the energy efficiency of the unit is low. Even though central air conditioners have generally adopted variable-frequency compressors, the energy efficiency of variable-frequency compressors will be significantly reduced when operating at low frequencies. In addition, large-displacement compressors have large rotor masses, such as Figure 6 As shown, the variable frequency compressor includes a gas-liquid separator 3 and a large compressor rotor cylinder 20, and the vibration generated is also relatively large, the noise of the whole machine is not good, and the pipeline vibration is large. Summary of the invention
[0003] In order to solve the above problems, the purpose of the utility model is to provide a high-efficiency multi-cylinder compressor, which divides a large compressor rotor cylinder into multiple small compressor rotor cylinders and connects them around a gas-liquid separator. A corresponding number of small compressor rotor cylinders can be opened under appropriate needs, so that the main engine can efficiently provide different capacities and avoid waste of power consumption. At the same time, the compressor has a better silent and shock-absorbing effect.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] A high-efficiency multi-cylinder compressor, characterized in that it includes a mounting base, the mounting base includes an intake cylinder and at least two exhaust cylinders arranged on the periphery of the intake cylinder, a gas-liquid separator is installed on the intake cylinder, an intake port is formed at the upper end of the gas-liquid separator, a compressor rotor cylinder body is installed on each exhaust cylinder, an exhaust port is formed at the upper end of the compressor rotor cylinder body, at least one through hole is correspondingly opened on the intake cylinder and the exhaust cylinder, a connecting pipe is passed through the through hole to connect the compressor rotor cylinder body and the gas-liquid separator.
[0006] In the above technical solution, an air intake cylinder is constructed on the mounting base of the compressor for installing a gas-liquid separator, and at least two exhaust cylinders are constructed on the peripheral side of the air intake cylinder for installing a (small) compressor rotor cylinder. The gas-liquid separator is connected to each compressor rotor cylinder through a connecting pipe so that each compressor rotor cylinder can extract refrigerant from the gas-liquid separator for use. When the central air conditioner is in use, a corresponding number of compressor rotor cylinders can be turned on according to the use requirements, so that the central air conditioner can provide different output capacities more efficiently under different uses, thereby solving the problem of excessive energy consumption caused by only one central air conditioner or a small number of central air conditioners being turned on, and the problem of low energy efficiency of variable frequency compressors at low frequencies. In addition, the mass of a single compressor rotor cylinder is reduced, the vibration generated is smaller, and the noise can be reduced.
[0007] Preferably, the suction cylinder and the exhaust cylinder are integrally formed. In this technical solution, the suction cylinder and the exhaust cylinder are integrally formed, which can make the entire mounting base structure more stable, thereby making the compressor more stable during operation with less vibration and noise.
[0008] Preferably, at least one compressor rotor cylinder rotates in the opposite direction to another compressor rotor cylinder. In this technical solution, the controller rotates two or more compressor rotor cylinders in opposite directions, so that the kinetic energy they generate is in opposite directions, thereby canceling out vibrations and reducing noise generation.
[0009] Preferably, there are four exhaust cylinders, which are regularly distributed circumferentially outside the intake cylinder, and four compressor rotor cylinder bodies are correspondingly arranged on the four exhaust cylinders. In this technical solution, the four exhaust cylinders are evenly distributed, the structure is stable, and the four compressor rotor cylinder bodies are correspondingly arranged on top. During operation, the force on each exhaust cylinder is relatively stable.
[0010] Preferably, the exhaust ports of the four compressor rotor cylinders are arranged in parallel. In this technical solution, the exhaust ports of the four compressor rotor cylinders are arranged in parallel, and one or more exhaust ports can be used to connect to the unit for exhaust according to needs, which has high energy efficiency and convenient and flexible installation.
[0011] Preferably, two compressor rotor cylinders rotate in opposite directions to the other two compressor rotors. In this technical solution, the rotation directions of the four compressor rotor cylinders are opposite to each other, which can basically offset the vibration generated by the operation of the compressor rotor cylinders and reduce noise.
[0012] Preferably, the mounting seat is supported below a base, and a folding plate is provided on the edge of the base extending outward, and a plurality of legs are provided on the folding plate. In this technical solution, the folding plate and the plurality of legs thereon can increase the support surface between the base and the ground, making the base more stable and reducing the vibration of the base and the compressor. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a high-efficiency multi-cylinder compressor.
[0014] Figure 2 It is a schematic diagram of the side cross-section structure of a high-efficiency multi-cylinder compressor.
[0015] Figure 3 Schematic diagram of the arrangement of the exhaust cylinder and the intake cylinder.
[0016] Figure 4 A schematic diagram of the side structure of the mounting base.
[0017] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure.
[0018] Figure 6 It is a structural schematic diagram of an existing compressor. DETAILED DESCRIPTION
[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0024] like Figures 1 to 5 A high-efficiency multi-cylinder compressor shown in the figure includes a mounting base, which includes an intake cylinder 1 and at least two exhaust cylinders 2 arranged on the side of the intake cylinder 1, a gas-liquid separator 3 is installed on the intake cylinder 1, and an intake port 4 is formed at the upper end of the gas-liquid separator 3, a compressor rotor cylinder body 5 is installed on each exhaust cylinder 2, and an exhaust port 6 is formed at the upper end of the compressor rotor cylinder body 5, and at least one through hole 7 is correspondingly opened on the intake cylinder 1 and the exhaust cylinder 2, and a connecting pipe is passed through the through hole 7 to connect the compressor rotor cylinder body 5 and the gas-liquid separator 3.
[0025] In the above technical solution, an air intake cylinder is constructed on the mounting base of the compressor for installing a gas-liquid separator, and at least two exhaust cylinders are constructed on the peripheral side of the air intake cylinder for installing a (small) compressor rotor cylinder. The gas-liquid separator is connected to each compressor rotor cylinder through a connecting pipe so that each compressor rotor cylinder can extract refrigerant from the gas-liquid separator for use. When the central air conditioner is in use, a corresponding number of compressor rotor cylinders can be turned on according to the use requirements, so that the central air conditioner can provide different output capacities more efficiently under different uses, thereby solving the problem of excessive energy consumption caused by only one central air conditioner or a small number of central air conditioners being turned on, and the problem of low energy efficiency of variable frequency compressors at low frequencies. In addition, the mass of a single compressor rotor cylinder is reduced, the vibration generated is smaller, and the noise can be reduced.
[0026] Furthermore, the suction cylinder 1 is integrally formed with the exhaust cylinder 2. In this technical solution, the suction cylinder and the exhaust cylinder are integrally formed, which can make the entire mounting seat structure more stable, thereby making the compressor more stable during operation with less vibration and noise.
[0027] Furthermore, at least one compressor rotor cylinder 5 rotates in the opposite direction to another compressor rotor cylinder 5. In this technical solution, the controller controls the rotation directions of two or more compressor rotor cylinders in opposite directions, so that the kinetic energy they generate is in opposite directions, thereby canceling out vibrations and reducing noise generation.
[0028] Furthermore, there are four exhaust cylinders 2, which are regularly distributed circumferentially outside the suction cylinder 1, and four compressor rotor cylinder bodies 5 are correspondingly arranged on the four exhaust cylinders 2. In this technical solution, the four exhaust cylinders are evenly distributed, the structure is stable, and the four compressor rotor cylinder bodies are correspondingly arranged on them. During operation, the force on each exhaust cylinder is relatively stable. It should be noted here that other numbers of exhaust cylinders can be set according to needs.
[0029] Furthermore, the exhaust ports 6 of the four compressor rotor cylinders 5 are arranged in parallel. In this technical solution, the exhaust ports of the four compressor rotor cylinders are arranged in parallel, and one or more exhaust ports can be used to connect to the unit for exhaust according to needs, which has high energy efficiency and convenient and flexible installation.
[0030] Furthermore, two of the compressor rotor cylinders 5 rotate in opposite directions to the other two compressor rotor cylinders 5. In this technical solution, the rotation directions of the four compressor rotor cylinders are opposite to each other, which can basically offset the vibration generated by the operation of the compressor rotor cylinders and reduce noise.
[0031] Furthermore, the mounting seat is supported below a base 8, and a folding plate 9 is provided on the edge of the base 8, and a plurality of legs 10 are provided on the folding plate 9. In this technical solution, the folding plate and the plurality of legs thereon can increase the support surface between the base and the ground, making the base more stable and reducing the vibration of the base and the compressor.
[0032] In this specific embodiment, in order to address the problems that the energy efficiency of the variable frequency compressor in the existing central air conditioner will be significantly reduced when operating at a low frequency, and that the large-displacement compressor has large vibration and noise, the above scheme is implemented by configuring the large compressor rotor cylinder body into several small compressor rotor cylinder bodies and sharing a gas-liquid separator. Each small-displacement compressor rotor cylinder body can be started and stopped independently. If the capacity demand is large, a large number of compressor rotor cylinder bodies will be started, and if the capacity demand is small, a small number of compressor rotor cylinder bodies will be started, thereby solving the problem of low energy efficiency of the variable frequency compressor at a low frequency. In addition, by controlling the rotation direction of the small compressor rotor cylinder bodies in each exhaust cylinder, the vibrations are offset from each other to achieve a silent shock-absorbing effect. The small compressor rotor cylinder body has a small mass and generates less vibration, thereby solving the problem of large noise and vibration of large-displacement compressors.
[0033] In addition, several small-displacement compressor rotor cylinders share one gas-liquid separator, which can also reduce the overall volume occupied by the equipment.
[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.
Claims
1. A high energy efficiency multi-cylinder compressor, characterized in that: The invention comprises a mounting base, wherein the mounting base comprises an air intake cylinder (1) and at least two air discharge cylinders (2) arranged on the circumference of the air intake cylinder (1); a gas-liquid separator (3) is mounted on the air intake cylinder (1); an air intake port (4) is formed at the upper end of the air intake cylinder (3); a compressor rotor cylinder body (5) is mounted on each air discharge cylinder (2); an air discharge port (6) is formed at the upper end of the compressor rotor cylinder body (5); at least one through hole (7) is correspondingly opened on the air intake cylinder (1) and the air discharge cylinder (2); a connecting pipe is passed through the through hole (7) to connect the compressor rotor cylinder body (5) and the air-liquid separator (3).
2. The high energy efficiency multi-cylinder compressor according to claim 1, characterized in that: The air intake cylinder (1) and the air exhaust cylinder (2) are integrally formed.
3. The high energy efficiency multi-cylinder compressor according to claim 1, characterized in that: At least one compressor rotor cylinder (5) rotates in the opposite direction to another compressor rotor cylinder (5).
4. The high energy efficiency multi-cylinder compressor according to claim 3, characterized in that: The exhaust cylinders (2) are provided in four numbers, and the four exhaust cylinders (2) are regularly distributed circumferentially outside the intake cylinder (1), and the four compressor rotor cylinder bodies (5) are correspondingly arranged on the four exhaust cylinders (2).
5. The high energy efficiency multi-cylinder compressor according to claim 4, characterized in that: The exhaust ports (6) of the four compressor rotor cylinder bodies (5) are arranged in parallel.
6. The high energy efficiency multi-cylinder compressor according to claim 4, characterized in that: Two of the compressor rotor cylinders (5) rotate in opposite directions to the other two compressor rotor cylinders (5).
7. The high energy efficiency multi-cylinder compressor according to claim 1, characterized in that: A base (8) is supported below the mounting seat, a folding plate (9) is provided on the edge of the base (8) extending outwards, and a plurality of supporting legs (10) are provided on the folding plate (9).