Air suction pipeline structure of compressor of refrigerating system

Abstract

The utility model provides an air suction pipeline structure of a refrigerating system compressor, which relates to the field of air conditioning equipment and comprises a compressor and a liquid storage tank arranged on one side of the compressor, the liquid storage tank is communicated with an air suction pipeline, and the air suction pipeline comprises a first vertical pipe communicated with the top end of the liquid storage tank. The end, away from the liquid storage tank, of the first vertical pipe is sequentially communicated with an arc pipe, a first inclined straight pipe, a second inclined straight pipe, a second vertical pipe, an arc transition pipe, a third vertical pipe, a third inclined straight pipe and a fourth vertical pipe, the end, away from the third inclined straight pipe, of the fourth vertical pipe is used for being communicated with a four-way valve, and the outer wall of the second inclined straight pipe is sleeved with a vibration reduction block. Through the design that the air suction pipeline is composed of the multiple sections of vertical pipes, the bent pipes and the inclined straight pipes, the mechanism stress of the air suction pipeline can be reduced, the strength and vibration resistance of the whole air suction pipeline can be improved, meanwhile, stable vibration absorption and vibration reduction performance can be achieved through the vibration reduction blocks, and then the problems of vibration and noise of an air suction pipeline system are solved.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning equipment, in particular to a compressor suction pipeline structure of a refrigeration system. Background Art

[0002] The compressor is the power core of the refrigeration system, providing power for the refrigeration system and completing the periodic intake, compression and exhaust process of the refrigerant. The piping system is a channel for transporting refrigerant. It is generally made of copper and includes an intake pipe and an exhaust pipe. The intake pipe is connected to the compressor intake port, and the exhaust pipe is connected to the compressor exhaust pipe. The compressor vibrates greatly during operation, which is directly transmitted to the pipes connected to it, stimulating the vibration of the pipes. Generally, the intake port of the compressor accumulator is far away from the rotation center of the compressor rigid body, and the vibration amplitude is large, thereby driving the vibration of the intake pipe and causing vibration and noise problems in the refrigeration system. At the same time, with the development of frequency conversion in the refrigeration industry, the frequency conversion compressor has many operating frequencies, which can easily stimulate the mode of the piping system to cause resonance, making it difficult to control vibration and noise. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is: how to improve the vibration and noise problems of the compressor suction pipeline.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] The utility model proposes a compressor suction pipeline structure of a refrigeration system, comprising a compressor and a liquid storage tank arranged on one side of the compressor, the liquid storage tank is connected with a suction pipeline, the suction pipeline comprises a first vertical pipe connected with the top of the liquid storage tank, the end of the first vertical pipe away from the liquid storage tank is sequentially connected with an arc pipe, a first oblique straight pipe, a second oblique straight pipe, a second vertical pipe, a transition pipe, a third vertical pipe, a third oblique straight pipe and a fourth vertical pipe; the first vertical pipe and the arc pipe are in the same vertical plane, the first oblique straight pipe and the second oblique straight pipe are in the same vertical plane, and the first oblique straight pipe and the second oblique straight pipe are in the same vertical plane. The tubes are all arranged to be inclined downward, and the acute angle of inclination of the above-mentioned first oblique straight tube is greater than the acute angle of inclination of the above-mentioned second oblique straight tube. The end of the above-mentioned fourth vertical tube away from the above-mentioned third oblique straight tube is used to connect to the four-way valve. The outer wall of the above-mentioned second oblique straight tube is sleeved with a vibration damping block. The design of the intake pipeline consisting of multiple sections of vertical pipes, curved pipes and oblique straight pipes can reduce the self-structural stress of the intake pipeline, and improve the strength and vibration resistance of the entire intake pipeline. At the same time, the vibration damping block can achieve stable vibration absorption and vibration reduction performance, thereby improving the vibration and noise problems of the intake pipeline system.

[0006] Furthermore, the lower end of the first vertical pipe is higher than the lower end of the second oblique straight pipe, which can ensure that the second oblique straight pipe and the second vertical pipe can be arranged around the outside of the liquid storage tank to meet the processing requirements.

[0007] Furthermore, the length of the first vertical pipe is in the range of 55 mm to 90 mm, which specifically limits the length of the first vertical pipe, ensures the size range of the actual pipeline, and prevents the first vertical pipe from being too long or too short to cause instability.

[0008] Furthermore, the transition pipe includes a first bent pipe connected to the second vertical pipe, an end of the first bent pipe away from the second vertical pipe is connected to a fourth oblique straight pipe, a fifth oblique straight pipe and a second bent pipe in sequence, and an end of the second bent pipe away from the fifth oblique straight pipe is connected to the third vertical pipe, which specifically defines the structure of the transition pipe. By arranging the first bent pipe and the second bent pipe, the stress at the connection is reduced, and the overall supporting performance and vibration resistance are improved.

[0009] Furthermore, a foot pad is provided at the lower end of the compressor body, and the height dimension between the end of the first bent tube away from the second vertical tube and the upper end of the foot pad is greater than 35 mm, which limits the height dimension between the position of the first bent tube and the foot pad. When the height of the bottom of the overall pipeline from the foot pad is relatively small, the risk of vibration, falling and collision is reduced.

[0010] Furthermore, the radius of the arc tube is greater than 30 mm, which limits the size range of the arc tube and ensures that the stress at the end of the arc tube is reduced to a lower level, thereby improving the rigidity and stability.

[0011] Furthermore, an exhaust port is provided at the top of the compressor, and an air intake port is provided at the top of the liquid storage tank. The air intake port is connected to the first vertical pipe. The projection line direction of the line connecting the air intake port and the exhaust port on the horizontal plane is a, and the projection line direction of the arc tube on the horizontal plane is b. The acute angle between a and b is less than 30°. The angle range between a and b is limited so that the arc tube is close to the rotation center of the compressor. The smaller angle between a and b minimizes the vibration displacement of the arc tube, thereby achieving the vibration reduction effect.

[0012] The beneficial effects of the utility model are:

[0013] By sequentially connecting the first vertical pipe, the arc pipe, the first oblique straight pipe, the second oblique straight pipe, the second vertical pipe, the transition pipe, the third vertical pipe, the third oblique straight pipe and the fourth vertical pipe, the entire intake pipe is arranged along the liquid storage tank from top to bottom. This structure has certain rigidity and stability, can absorb and resist vibration, and reduce the vibration and noise of the intake pipe in the working state. Moreover, the setting of the vibration damping block can further improve the vibration absorption characteristics of the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the suction pipeline structure of the utility model;

[0016] Figure 3 It is a left side schematic diagram of the utility model;

[0017] Figure 4 It is a top view schematic diagram of the utility model;

[0018] Marked in the figure, 1-first vertical pipe, 2-arc pipe, 3-first oblique straight pipe, 4-second oblique straight pipe, 5-second vertical pipe, 6-first bent pipe, 7-fourth oblique straight pipe, 8-fifth oblique straight pipe, 9-second bent pipe, 10-third vertical pipe, 11-third oblique straight pipe, 12-fourth vertical pipe, 13-vibration damping block, 100-compressor, 200-liquid storage tank, 300-foot pad. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] according to Figure 1-Figure 4As shown, the embodiment of the present application proposes a suction pipeline structure of a refrigeration system compressor 100, including a compressor 100 and a liquid storage tank 200 arranged on one side of the compressor 100, the liquid storage tank 200 is connected with a suction pipeline, and the suction pipeline includes a first vertical pipe 1 connected to the top of the liquid storage tank 200, and the end of the first vertical pipe 1 away from the liquid storage tank 200 is sequentially connected with an arc pipe 2, a first oblique straight pipe 3, a second oblique straight pipe 4, a second vertical pipe 5, a transition pipe, a third vertical pipe 10, a third oblique straight pipe 5, a transition pipe, a third vertical pipe 11, a third oblique straight pipe 12, a third vertical pipe 13, a third vertical pipe 14, a third vertical pipe 15, a third vertical pipe 16, a third vertical pipe 17, a third vertical pipe 18, a third vertical pipe 19, a third vertical pipe 20, a third vertical pipe 21, a third vertical pipe 22, a third vertical pipe 23, a third vertical pipe 24, a third vertical pipe 25, a third vertical pipe 26, a third vertical pipe 27, a third vertical pipe 28, a third vertical pipe 29, a third vertical pipe 30, a third vertical pipe 31, a third vertical pipe 32, a third vertical pipe 33, a third vertical pipe 34, a third vertical pipe 35, a third vertical pipe 36, a third vertical pipe 37, a third vertical pipe 38, a third vertical pipe 39, a third vertical pipe 40, a third vertical pipe 41, a third vertical pipe 42, a third vertical pipe 43, a third vertical pipe 44, a third vertical pipe 45, a third vertical pipe 46, a third vertical pipe 47, a third vertical pipe 48, a third vertical pipe 49, a third vertical pipe 50, a third vertical pipe 51, a third vertical pipe Straight pipe 11 and fourth vertical pipe 12; the first vertical pipe 1 and the arc pipe 2 are in the same vertical plane, the first oblique straight pipe 3 and the second oblique straight pipe 4 are both inclined downward, and the acute angle of inclination of the first oblique straight pipe 3 is greater than the acute angle of inclination of the second oblique straight pipe 4. The first oblique straight pipe 3 and the second oblique straight pipe 4 are connected by tilting downward transition to have a certain gap between the liquid storage tank and the compressor to prevent contact during vibration, and the oblique straight pipes with different inclination angles at both ends have better strength. The end of the fourth vertical pipe 12 away from the third oblique straight pipe 11 is used to connect to the four-way valve, and the outer wall of the second oblique straight pipe 4 is sleeved with a vibration damping block 13; that is, the first vertical pipe 1 extends vertically upward from the upper opening of the liquid storage tank 200, and both ends of the arc pipe 2 are vertically downward and the extension direction is toward the compressor 100, the radius of the arc pipe 2 is greater than 30 mm, and the connecting portion of the first oblique straight pipe 3 and the arc pipe 2 is a bending setting, and the first oblique straight pipe 3 is tilted downward, and the connecting portion of the second oblique straight pipe 4 and the first oblique straight pipe 3 is also a bending setting, the bending design can reduce the connection stress between the pipes and improve the rigidity, and the second oblique straight pipe 4 is also tilted downward. The first oblique straight pipe 3 and the second oblique straight pipe 4 can avoid the outer wall of the compressor 100 by bending and tilting, so that there is a certain distance between the pipeline and the compressor 100, and the second vertical pipe 5 is arranged vertically downward, and the second vertical pipe 5 extends downward to a position close to the top of the foot pad 300 of the above-mentioned compressor 100, the transition pipe is arranged horizontally and the transition pipe is arranged around the horizontal outer wall of the liquid storage tank 200, and the transition pipe has a certain distance from the outer wall of the above-mentioned compressor 100, and the third vertical pipe 10 extends vertically upward to connect the third oblique straight pipe 11 extending obliquely upward, and the fourth vertical pipe 12 extends upward, and the above-mentioned vibration damping block 13 is connected to the outer wall of the second oblique straight pipe 4, and the vibration damping block 13 is cylindrical.

[0021] Specifically, the lower end of the first vertical tube 1 is higher than the lower end of the second oblique straight tube 4, which is beneficial to the bending process and prevents the first vertical tube 1 from obstructing the second oblique straight tube 4 during the processing. In addition, the vibration damping block 13 is connected to the outer wall of the second oblique straight tube 4.

[0022] The lower end position of the first vertical pipe 1 being higher than the lower end position of the second oblique straight pipe 4 is also conducive to the installation of the vibration damping block 13, preventing the vibration damping block 13 from interfering with the liquid storage tank 200 or the position of the first vertical pipe 1, thereby ensuring the reliability and stability of the entire structure.

[0023] For the first vertical pipe 1, specifically, the length size range of the first vertical pipe 1 is 55mm-90mm. Within this size range, it can ensure that the arc tube 2 is at a reasonable height from the top of the liquid storage tank 200, thereby ensuring the overall stability of the entire pipeline structure.

[0024] The above-mentioned transition pipe includes a first bent pipe 6 connected to the above-mentioned second vertical pipe 5, and the end of the above-mentioned first bent pipe 6 away from the above-mentioned second vertical pipe 5 is connected to the fourth oblique straight pipe 7, the fifth oblique straight pipe 8 and the second bent pipe 9 in sequence, and the end of the above-mentioned second bent pipe 9 away from the above-mentioned fifth oblique straight pipe 8 is connected to the above-mentioned third vertical pipe 10, the first bent pipe 6, the fourth oblique straight pipe 7, the fifth oblique straight pipe 8 and the second bent pipe 9 are connected in sequence to form an arc-shaped pipeline, and the formed arc-shaped pipeline surrounds the bottom of the liquid storage tank 200 and extends circumferentially along the liquid storage tank 200 to ensure the stability of the overall structure.

[0025] Moreover, there is a reasonable gap between the entire intake pipeline and the outer walls of the compressor 100 and the liquid storage tank 200, which can ensure that the intake pipeline will not contact the compressor 100 and the liquid storage tank 200 when vibrating, thereby eliminating possible noise and protecting the compressor 100, the liquid storage tank 200 and the pipeline from damage.

[0026] In actual work, the first bent tube 6 is located above the foot pad 300 of the compressor 100. In order to prevent the first bent tube 6 from vibrating and falling and contacting the foot pad 300 of the compressor 100, a foot pad 300 is provided at the lower end of the compressor 100. The height dimension between the end of the first bent tube 6 away from the second vertical pipe 5 and the upper end of the foot pad 300 is greater than 35 mm, ensuring that the entire intake pipeline can work stably.

[0027] An exhaust port is provided at the top of the compressor 100, and an intake port is provided at the top of the liquid storage tank 200. The intake port is connected to the first vertical pipe 1. The projection line direction of the connection line between the intake port and the exhaust port on the horizontal plane is a, and the projection line direction of the arc tube 2 on the horizontal plane is b. The acute angle between a and b is less than 30°, that is, the arc tube 2 close to the rotation center of the compressor 100 from the intake port minimizes the vibration displacement of the intake pipe, thereby achieving a vibration reduction effect.

[0028] In summary, the embodiment of the present application proposes an air suction pipeline structure of a compressor 100 of a refrigeration system, including a compressor 100 and a liquid storage tank 200 arranged on one side of the compressor 100, the liquid storage tank 200 is connected with an air suction pipeline, and the air suction pipeline includes a first vertical pipe 1 connected to the top of the liquid storage tank 200, and the end of the first vertical pipe 1 away from the liquid storage tank 200 is sequentially connected with an arc pipe 2, a first oblique straight pipe 3, a second oblique straight pipe 4, a second vertical pipe 5, a transition pipe, a third vertical pipe 10, a third oblique straight pipe 11 and a fourth vertical pipe 12; the first vertical pipe 1 and the arc pipe 2 are in the same vertical plane, The first oblique straight tube 3 and the second oblique straight tube 4 are both arranged to be inclined downward, and the acute angle of inclination of the first oblique straight tube 3 is greater than the acute angle of inclination of the second oblique straight tube 4. The end of the fourth vertical tube 12 away from the third oblique straight tube 11 is used to connect to the four-way valve. The outer wall of the second oblique straight tube 4 is sleeved with a vibration damping block 13. The design of the intake pipeline consisting of multiple sections of vertical pipes, curved pipes and oblique straight pipes can reduce the self-structural stress of the intake pipeline, and improve the strength and vibration resistance of the entire intake pipeline. At the same time, the vibration damping block 13 can achieve stable vibration absorption and vibration reduction performance, thereby improving the vibration and noise problems of the intake pipeline system.

Claims

1. A refrigeration system compressor suction pipeline structure, comprising a compressor (100) and a liquid storage tank (200) arranged on one side of the compressor (100), wherein the liquid storage tank (200) is connected to a suction pipeline, and is characterized in that: The air intake pipeline comprises a first vertical pipe (1) connected to the top of the liquid storage tank (200); the end of the first vertical pipe (1) away from the liquid storage tank (200) is connected in sequence to a circular arc pipe (2), a first oblique straight pipe (3), a second oblique straight pipe (4), a second vertical pipe (5), a transition pipe, a third vertical pipe (10), a third oblique straight pipe (11) and a fourth vertical pipe (12); the first vertical pipe (1) and the circular arc pipe (2) are located in the same vertical plane; the first oblique straight pipe (3) and the second oblique straight pipe (4) are both arranged to be inclined downward, and the inclination acute angle of the first oblique straight pipe (3) is greater than the inclination acute angle of the second oblique straight pipe (4); the end of the fourth vertical pipe (12) away from the third oblique straight pipe (11) is used to connect to a four-way valve; the outer wall of the second oblique straight pipe (4) is sleeved with a vibration damping block (13).

2. The refrigeration system compressor suction pipeline structure according to claim 1, characterized in that: The lower end position of the first vertical tube (1) is higher than the lower end position of the second oblique straight tube (4).

3. The refrigeration system compressor suction pipeline structure according to claim 1, characterized in that: The length of the first vertical pipe (1) ranges from 55 mm to 90 mm.

4. The refrigeration system compressor suction pipeline structure according to claim 1, characterized in that: The transition pipe comprises a first bent pipe (6) connected to the second vertical pipe (5); an end of the first bent pipe (6) away from the second vertical pipe (5) is connected in sequence to a fourth oblique straight pipe (7), a fifth oblique straight pipe (8) and a second bent pipe (9); an end of the second bent pipe (9) away from the fifth oblique straight pipe (8) is connected to the third vertical pipe (10).

5. The refrigeration system compressor suction pipeline structure according to claim 4, characterized in that: A foot pad (300) is provided at the lower end of the compressor (100), and the height dimension between the end of the first bent tube (6) away from the second vertical tube (5) and the upper end of the foot pad (300) is greater than 35 mm.

6. The refrigeration system compressor suction pipeline structure according to claim 1, characterized in that: The radius of the arc tube (2) is greater than 30 mm.

7. The refrigeration system compressor suction pipeline structure according to claim 1, characterized in that: The compressor (100) is provided with an exhaust port at the top end, and the liquid storage tank (200) is provided with an intake port at the top end, the intake port being connected to the first vertical pipe (1), the projection line direction of the line connecting the intake port and the exhaust port on the horizontal plane is a, the projection line direction of the arc tube (2) on the horizontal plane is b, and the acute angle between a and b is less than 30°.

Images