A structure of a charge pipe of a compressor of a refrigeration system

Abstract

The utility model discloses a refrigerating system compressor air supplementing pipe structure, including compressor body and sound insulation board, and one end with compressor body connects the air supplementing pipe that sets up on sound insulation board through connecting piece, air supplementing pipe includes: first pipe unit, presents the inverted U type structure, one end is connected with compressor body, and the other end is provided with the silencer, and the silencer is used for reducing the noise that airflow produces when flowing in the pipeline, second pipe unit, presents the U type structure, one end is connected with the silencer, and the other end is provided with solenoid valve, and solenoid valve is used for controlling air supplementing pipe circuit on-off, third pipe unit, one end is connected with solenoid valve, and the other end is connected with external pipeline, forms the passage, through setting up the silencer between inverted U type's first pipe unit and U type's second pipe unit, and the double damping mechanism of cooperation is formed: the arc structure of pipe unit weakens the conduction efficiency of vibration, and the initial energy of vibration is reduced to the silencer, and then reduces the stress accumulation that produces because of vibration.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration system technology, specifically to a compressor gas supply pipe structure for a refrigeration system. Background Technology

[0002] In vapor injection enthalpy-enhancing refrigeration systems, the compressor make-up gas pipe is not only a channel for replenishing refrigerant flow, but also a key component for achieving improved energy efficiency, reliable low-temperature operation, and compressor protection. However, the make-up gas pipe often experiences high stress values, making it prone to fatigue fracture during operation. Effective pipe vibration damping design can reduce the fatigue stress on the pipes, significantly extend their service life, and improve the reliability of air conditioning products.

[0003] For example, CN212457509U discloses a gas injection pipeline structure for a jet enthalpy-enhancing compressor, which includes a first connecting pipe, a second connecting pipe, and a buffer device. The two ends of the first connecting pipe are respectively connected to the gas injection port of the compressor and the outlet end of the buffer device; the two ends of the second connecting pipe are respectively connected to the inlet end of the buffer device and the connecting pipe of the plate heat exchanger; the connecting pipe of the plate heat exchanger is connected to the plate heat exchanger; the buffer device is connected to the gas valve assembly through a pipe clamp; the gas valve assembly is fixed on the valve bracket. By setting the buffer device and other structures, the impact of the refrigerant on the wall of the gas injection pipe is effectively reduced.

[0004] For example, CN222527913U discloses a vibration damping device for an air conditioning refrigeration system's air supply pipe, which includes a muffler. The two ends of the muffler are respectively connected to an air outlet pipe and an air supply pipe assembly. The end of the air outlet pipe away from the muffler is used to connect to a compressor. The air supply pipe assembly includes a curved pipe connected to the muffler. The end of the curved pipe away from the muffler is connected to an upwardly extending bend pipe. The end of the bend pipe away from the curved pipe is connected to a downward-opening air inlet pipe. The curved pipe and bend pipe can disperse the stress on the pipe and avoid stress concentration.

[0005] Although the above-mentioned devices achieve stress reduction by setting up long pipelines in conjunction with buffer devices, the internal installation space of different equipment is limited, and the pipeline installation and fixing are restricted. As a result, improper installation may cause it to lack or reduce its effective stress buffering ability. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a compressor gas injection pipe structure for a refrigeration system, so as to solve the problem that the gas injection pipe layout and installation in the existing technology is relatively complicated, and the installation and fixing are restricted or unqualified, which may lead to failure and high stress. The stress accumulation may cause the pipe to break and fail.

[0007] According to an embodiment of this utility model, a compressor gas supply pipe structure for a refrigeration system includes a compressor body and a sound insulation plate, and a gas supply pipe with one end connected to the compressor body and the other end mounted on the sound insulation plate via a connector. The gas supply pipe includes: a first pipe unit with an inverted U-shaped structure, one end of which is connected to the compressor body and the other end of which is provided with a silencer pipe to reduce noise generated when airflow flows in the pipe; a second pipe unit with a U-shaped structure, one end of which is connected to the silencer pipe and the other end of which is provided with a solenoid valve to control the opening and closing of the gas supply pipe; and a third pipe unit with one end connected to the solenoid valve and the other end connected to an external pipe to form a passage.

[0008] Compared to existing technologies, this invention offers the following advantages: By installing a silencer between the inverted U-shaped first tube unit and the U-shaped second tube unit, the arc-shaped structures of the inverted U and U-shaped tube units possess a certain elastic deformation capability, which can buffer the vibration impact caused by airflow pulsation through their own bending shape; while the silencer directly attenuates the sound wave energy generated by airflow pulsation through its internal structure, thereby reducing the excitation intensity of vibration. The combination of these two elements forms a dual vibration reduction mechanism of "physical buffering + energy attenuation": the arc-shaped structure of the tube unit weakens the vibration transmission efficiency, and the silencer reduces the initial energy of vibration, significantly reducing the overall vibration amplitude of the pipeline, thereby reducing the stress accumulation caused by vibration.

[0009] Preferably, the first pipe unit includes a first straight pipe connected to the compressor body, and a first bent pipe, a second straight pipe, a second bent pipe and a third straight pipe. The first straight pipe, the first bent pipe, the second straight pipe, the second bent pipe and the third straight pipe are connected in sequence to form an inverted U-shaped structure, wherein the third straight pipe is connected to one end of the silencer pipe.

[0010] Preferably, the second pipe unit includes a fourth straight pipe connected at one end to the other end of the silencer pipe, as well as a third bend, a fifth straight pipe, a fourth bend, and a sixth straight pipe. The fourth straight pipe, the third bend, the fifth straight pipe, the fourth bend, and the sixth straight pipe are connected in sequence to form a U-shaped structure, wherein one end of the sixth straight pipe is connected to a solenoid valve.

[0011] Preferably, the third pipe unit includes a seventh straight pipe connected at one end to a solenoid valve, a seventh bend pipe and an eighth straight pipe, and the seventh straight pipe, the seventh bend pipe and the eighth straight pipe are connected in sequence to form a passage.

[0012] Preferably, the connector includes a fixed bracket disposed on the sound insulation panel and a first buckle disposed on the fixed bracket, and the sixth straight tube passes through the first buckle for fixation.

[0013] Preferably, the vertical distance between the first buckle and the sound insulation plate is greater than the vertical distance between the solenoid valve and the sound insulation plate.

[0014] Preferably, a second buckle is provided on the sound insulation board, and the eighth straight pipe passes through the second buckle for fixation.

[0015] Preferably, a rubber pad is provided on the inner arc surface of the first buckle.

[0016] Preferably, a rubber pad is provided on the inner arc surface of the second buckle.

[0017] Preferably, the first tube unit, the second tube unit, and the third tube unit are all made of stainless steel. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the air supply pipe in an embodiment of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the first buckle in an embodiment of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the fixed bracket in an embodiment of the present utility model.

[0022] The reference numerals in the accompanying drawings of the instruction manual include: 1. Compressor body; 2. Sound insulation plate; 3. Fixing bracket; 4. First buckle; 5. Second buckle; 7. Silencing pipe; 9. Solenoid valve; 10. First straight pipe; 11. First bend; 20. Second straight pipe; 21. Second bend; 30. Third straight pipe; 31. Third bend; 40. Fourth straight pipe; 41. Fourth bend; 50. Fifth straight pipe; 60. Sixth straight pipe; 70. Seventh straight pipe; 71. Seventh bend; 80. Eighth straight pipe. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a compressor gas supply pipe structure for a refrigeration system, including a compressor body 1 and a sound insulation plate 2, and a gas supply pipe with one end connected to the compressor body 1 and the other end set on the sound insulation plate 2 through a connector. The gas supply pipe includes: a first pipe unit with an inverted U-shaped structure, one end of which is connected to the compressor body 1 and the other end is provided with a silencer pipe 7, which is used to reduce the noise generated when the airflow flows in the pipe; a second pipe unit with a U-shaped structure, one end of which is connected to the silencer pipe 7 and the other end is provided with a solenoid valve 9, which is used to control the opening and closing of the gas supply pipe; and a third pipe unit, one end of which is connected to the solenoid valve 9 and the other end is connected to an external pipe to form a passage.

[0025] The detailed working process of this embodiment is as follows: the arc structure of the inverted U-shaped and U-shaped tube units has a certain elastic deformation capability, which can buffer the vibration impact caused by airflow pulsation through its own bending shape; while the silencer tube 7 directly attenuates the sound wave energy formed by airflow pulsation through its internal structure, reducing the excitation intensity of vibration from the source.

[0026] The pre-designed shapes of the inverted U-shaped and U-shaped pipe units optimize the pipeline routing, reducing bending and adjustments during on-site installation. The silencer pipe 7, as a standardized functional component, can precisely connect with the pipe units at both ends, eliminating the need for additional complex adaptation procedures. This modular combination of the three components clarifies the overall pipeline assembly process, reduces the operational difficulty for installers, minimizes pipeline twisting or uneven stress caused by installation deviations, and prevents abnormal stress accumulation during assembly.

[0027] The noise suppression effect of the silencer tube 7 indirectly reduces the fatigue damage to the arc-shaped structure of the tube unit caused by long-term noise vibration. High-frequency vibration can lead to fatigue cracks in metal pipes, while the silencer tube 7 reduces the vibration frequency and amplitude, making it more difficult for the arc-shaped part of the tube unit to suffer microscopic damage. At the same time, the structural stability of the inverted U-shaped and U-shaped tube units provides a solid installation foundation for the silencer tube 7, preventing the connection from loosening due to pipe shaking and ensuring its noise reduction and vibration damping function remains effective.

[0028] like Figure 2 As shown, the first pipe unit includes a first straight pipe 10 connected to the compressor body 1, a first bent pipe 11, a second straight pipe 20, a second bent pipe 21 and a third straight pipe 30. The first straight pipe 10, the first bent pipe 11, the second straight pipe 20, the second bent pipe 21 and the third straight pipe 30 are connected in sequence to form an inverted U-shaped structure, wherein the third straight pipe 30 is connected to one end of the silencer pipe 7.

[0029] The detailed working process of this embodiment is as follows: The design is formed by connecting multiple straight pipes and bends in sequence to form an inverted U-shape. The arc structure disperses the stress in the pipeline. When the airflow pulsates or the system vibrates and generates impact force, the arc structure can absorb some energy through its own deformation, reducing stress concentration.

[0030] The third straight pipe 30 serves as the connection end between the first pipe unit and the silencer pipe 7. The straight pipe structure ensures the stability and sealing of the connection between the two. The straight pipe connection reduces the stress complexity of the connection part, allowing the airflow to smoothly transition from the first pipe unit to the silencer pipe 7, reducing airflow disturbance caused by abrupt changes in pipe shape, thereby reducing vibration and noise generation, and forming a better synergistic effect with the silencer pipe 7's silencer function.

[0031] like Figure 4As shown, the second pipe unit includes a fourth straight pipe 40 connected at one end to the other end of the silencer pipe 7, as well as a third bend pipe 31, a fifth straight pipe 50, a fourth bend pipe 41 and a sixth straight pipe 60. The fourth straight pipe 40, the third bend pipe 31, the fifth straight pipe 50, the fourth bend pipe 41 and the sixth straight pipe 60 are connected in sequence to form a U-shaped structure, wherein one end of the sixth straight pipe 60 is connected to the solenoid valve 9.

[0032] The detailed working process of this embodiment is as follows: The fourth straight pipe 40 is connected to the silencer pipe 7, forming a U-shaped structure at the rear end of the silencer pipe 7. The U-shaped structure itself has a certain buffering and vibration reduction capability, which can further weaken the residual airflow pulsation after attenuation by the silencer pipe 7, and together with the silencer pipe 7, it constructs a "secondary vibration reduction" mechanism. The orderly connection between the straight pipe and the bend ensures that the airflow remains stable after entering the second pipe unit from the silencer pipe 7, reducing turbulent noise caused by abrupt changes in pipe shape and avoiding interference with the silencing effect. In addition, the straight pipe connection between the sixth straight pipe 60 and the solenoid valve 9 ensures the valve's precise control over the pipe opening and closing, reduces the damage to the valve sealing surface caused by airflow impact, extends the service life of the solenoid valve 9, and also makes the overall stress distribution of the pipe more uniform, reducing the risk of breakage during long-term operation.

[0033] like Figure 2 As shown, the third pipe unit includes a seventh straight pipe 70 connected at one end to a solenoid valve 9, a seventh bend pipe 71 and an eighth straight pipe 80, which are connected in sequence to form a passage.

[0034] The detailed working process of this embodiment is as follows: The seventh straight pipe 70 is connected to the straight pipe of the solenoid valve 9, making the force on the solenoid valve 9 more even during opening and closing, ensuring the accuracy of valve control, reducing the impact of airflow on the valve, and extending the service life of the solenoid valve 9. At the same time, the reasonable bending angle of the seventh bend pipe 71 allows the airflow to smoothly transition from the solenoid valve 9 to the eighth straight pipe 80, reducing noise and vibration caused by airflow disturbance and avoiding affecting the stability of the entire pipeline system. In addition, the passage design of this unit ensures the smooth flow of refrigerant in the pipeline, and together with the first two pipe units, it constitutes an efficient and stable refrigerant supply pipeline system, improving the overall operating performance of the refrigeration system.

[0035] like Figure 2 As shown, the connector includes a fixed bracket 3 set on the sound insulation panel 2 and a first buckle 4 set on the fixed bracket 3, and the sixth straight tube 60 passes through the first buckle 4 for fixation.

[0036] The detailed working process of this embodiment is as follows: The first clip 4 can form a stable clamping effect on the sixth straight pipe 60, limiting its axial and radial displacement. As the connection section between the second pipe unit and the solenoid valve 9, the sixth straight pipe 60 is prone to shaking under the influence of airflow pulsation and system vibration. The fixing of the clip can effectively suppress this shaking, avoid the connection parts of the pipeline from loosening due to long-term swinging, and reduce the risk of refrigerant leakage.

[0037] The fixing bracket 3 is positioned on the sound insulation plate 2. Within a certain range, the closer the fixing bracket 3 is to the fourth bend 41, the better the fixing effect. In this embodiment, the position is one-third of the way from the end of the sixth straight pipe 60 away from the solenoid valve 9.

[0038] like Figure 1 As shown, the vertical distance between the first buckle 4 and the sound insulation plate 2 is greater than the vertical distance between the solenoid valve 9 and the sound insulation plate 2.

[0039] The detailed working process of this embodiment is as follows: by using the fixed bracket 3 to limit the distance between the solenoid valve 9 and the sound insulation plate 2, the solenoid valve 9 and the sound insulation plate 2 are prevented from colliding.

[0040] like Figure 1 As shown, the sound insulation panel 2 is provided with a second buckle 5, and the eighth straight tube 80 passes through the second buckle 5 for fixation.

[0041] The detailed working process of this embodiment is as follows: The second clip 5 and the first clip 4 form a multi-point fixing layout. The first clip 4 fixes the sixth straight pipe 60, and the second clip 5 fixes the eighth straight pipe 80. The two rely on the sound insulation plate 2 to form a front-to-back support point, distributing the force on the air supply pipeline on one side of the sound insulation plate 2 to two fixed positions, avoiding failure of a single fixed point due to excessive load. This multi-point fixing mode can effectively decompose the weight of the pipeline itself and the force generated by the airflow impact, so that the stress is more evenly distributed in the pipeline, delaying fatigue damage under long-term operation.

[0042] like Figure 1 As shown, a rubber pad is provided on the inner arc surface of the first buckle 4.

[0043] like Figure 1 As shown, the inner arc surface of the second buckle 5 is provided with a rubber pad.

[0044] The detailed working process of this embodiment is as follows: The rubber pad has a certain degree of elasticity and friction, which can fill the tiny gaps between the clip and the outer wall of the pipeline, making the clip clamp the sixth straight pipe 60 and the eighth straight pipe 80 more tightly. This ensures that the pipeline maintains stable positioning under different working conditions and reduces the aggravation of vibration caused by loosening. At the same time, the rubber pad can effectively buffer the hard contact between the clip and the pipeline, preventing the metal clip from directly pressing against the outer wall of the pipeline and causing scratches or deformation. Especially for pipelines that are subject to long-term vibration, the rubber pad can reduce the wear of the clip edge on the pipeline surface, protect the structural integrity of the pipeline, and extend its service life.

[0045] like Figure 1 As shown, the first tube unit, the second tube unit, and the third tube unit are all made of stainless steel.

[0046] The detailed working process of this embodiment is as follows: Unlike traditional copper pipes, stainless steel has significantly higher tensile strength and hardness than copper pipes, enabling it to better withstand the airflow pressure within the pipe and the stress generated by external vibrations. Each pipe unit in the gas supply pipeline contains multiple bends and straight pipe connection points. The high rigidity of stainless steel reduces pipe deformation caused by stress accumulation, especially for irregularly shaped pipe units such as inverted U-shaped and U-shaped pipes, maintaining morphological stability and preventing pipe misalignment or breakage caused by plastic deformation during long-term operation. Simultaneously, stainless steel has superior fatigue resistance, able to withstand repeated stress impacts under high-frequency vibration, extending the service life of the pipeline. Furthermore, stainless steel has stronger corrosion resistance in the complex environment of refrigeration systems. The passivation film of stainless steel effectively resists the erosion of corrosive media, reducing the risk of corrosion perforation of the inner wall of the pipe and lowering the possibility of refrigerant leakage.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A charge piping structure for a refrigeration system compressor, characterized by: The system includes a compressor body (1) and a sound insulation panel (2), and an air supply pipe with one end connected to the compressor body (1) and the other end mounted on the sound insulation panel (2) via a connector. The air supply pipe includes: The first pipe unit has an inverted U-shaped structure. One end of it is connected to the compressor body (1), and the other end is provided with a silencer pipe (7). The silencer pipe (7) is used to reduce the noise generated when the airflow flows in the pipe. The second pipe unit has a U-shaped structure. One end of it is connected to the silencer pipe (7), and the other end is equipped with a solenoid valve (9). The solenoid valve (9) is used to control the opening and closing of the air supply line. The third pipe unit is connected at one end to the solenoid valve (9) and at the other end to the external pipeline to form a passage.

2. The refrigeration system compressor suction tube structure of claim 1, wherein: The first pipe unit includes a first straight pipe (10) connected to the compressor body (1), a first bent pipe (11), a second straight pipe (20), a second bent pipe (21) and a third straight pipe (30). The first straight pipe (10), the first bent pipe (11), the second straight pipe (20), the second bent pipe (21) and the third straight pipe (30) are connected in sequence to form an inverted U-shaped structure. The third straight pipe (30) is connected to one end of the silencer pipe (7).

3. The refrigeration system compressor suction pipe structure of claim 2, wherein: The second pipe unit includes a fourth straight pipe (40) connected at one end to the other end of the silencer pipe (7), and a third bend pipe (31), a fifth straight pipe (50), a fourth bend pipe (41) and a sixth straight pipe (60). The fourth straight pipe (40), the third bend pipe (31), the fifth straight pipe (50), the fourth bend pipe (41) and the sixth straight pipe (60) are connected in sequence to form a U-shaped structure. One end of the sixth straight pipe (60) is connected to the solenoid valve (9).

4. The refrigeration system compressor suction pipe structure of claim 3, wherein: The third pipe unit includes a seventh straight pipe (70) connected at one end to the solenoid valve (9), a seventh bend pipe (71) and an eighth straight pipe (80), and the seventh straight pipe (70), the seventh bend pipe (71) and the eighth straight pipe (80) are connected in sequence to form a passage.

5. The refrigeration system compressor suction pipe structure of claim 3, wherein: The connector includes a fixed bracket (3) disposed on the sound insulation plate (2) and a first buckle (4) disposed on the fixed bracket (3), and the sixth straight tube (60) passes through the first buckle (4) for fixing.

6. The refrigeration system compressor suction tube structure of claim 5, wherein: The vertical distance between the first buckle (4) and the sound insulation plate (2) is greater than the vertical distance between the solenoid valve (9) and the sound insulation plate (2).

7. The refrigeration system compressor suction pipe structure of claim 4, wherein: The sound insulation board (2) is provided with a second buckle (5), and the eighth straight tube (80) passes through the second buckle (5) for fixation.

8. The refrigeration system compressor suction tube structure of claim 6, wherein: The inner arc surface of the first buckle (4) is provided with a rubber pad.

9. The refrigeration system compressor suction pipe structure of claim 7, wherein: The inner arc surface of the second buckle (5) is provided with a rubber pad.

10. The refrigeration system compressor suction tube structure of claim 3, wherein: The first tube unit, the second tube unit, and the third tube unit are all made of stainless steel.

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