Damping device of air suction pipe for rotor compressor
By designing a shock -absorbing device for the absorbing pipe, the connection and bending design of the pipeline uses the pipeline in turn, solve the problem of fatigue breaks caused by vibration, and achieve the goal of efficient vibration reduction effects and reducing costs.
Patent Information
- Application Number
- CN202421219654.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing suction pipe is prone to fatigue and breakage due to vibration in air conditioners, and the use of silencer pipes increases manufacturing costs and leakage risks.
A shock absorption device for a rotor compressor is designed. The pipeline structure is connected and bent in order through the pipelines such as the first vertical pipe, the first horizontal pipe, and the first oblique pipe. shock.
Effectively decentralized stress, reduce the degree of vibration, improve the sealing performance of the overall pipeline, and reduce costs at the same time, avoiding the use of muffler.
Smart Images
Figure CN222415250U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to a shock absorbing device for an air intake pipe of a rotor compressor. Background Art
[0002] In the actual use of air conditioners, the compressor is a vibrating component, and the intake and exhaust pipes connected to the compressor in the refrigeration system often vibrate the most. During the long-term operation of the air conditioner, the intake and exhaust pipes are prone to fatigue fracture. Effective pipeline shock absorption design can reduce the fatigue stress on the pipeline, greatly increase the service life of the pipeline, and improve the reliability of air conditioning products. At present, some intake pipes use silencers to reduce shock. Although there is a certain shock absorption effect, the use of silencers increases the number of welding points in the pipeline and increases the risk of pipeline leakage. In addition, the silencer is mostly made of copper or stainless steel, and the use of silencers also increases the manufacturing cost. 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 reduction effect of the intake pipe and reduce the cost of vibration reduction and noise reduction.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A damping device for an air intake pipe of a rotary compressor comprises a first vertical pipe connected to an air intake port of the compressor and extending upward, wherein the upper end of the first vertical pipe is connected in sequence to a first horizontal pipe, a first oblique pipe, a second vertical pipe, a second oblique pipe, a third oblique pipe, a third vertical pipe, a fourth oblique pipe and a fourth vertical pipe, and the upper end of the fourth vertical pipe is connected to a four-way valve; the first horizontal pipe extends toward an exhaust port of the compressor, the first oblique pipe extends downward and in a direction away from the compressor, the second oblique pipe extends obliquely downward, the third oblique pipe extends obliquely upward, and the second oblique pipe and the third oblique pipe are arranged around the outside of the compressor; the fourth oblique pipe extends upward and toward the compressor; the connecting parts among the first vertical pipe, the first horizontal pipe, the first oblique pipe, the second vertical pipe, the second oblique pipe, the third oblique pipe, the third vertical pipe, the fourth oblique pipe and the fourth vertical pipe are all bent and the outer diameter of the pipe is the same everywhere, and the bending radius is 2-2.5 times the outer diameter of the pipe.
[0006] Furthermore, the length of the first vertical pipe is twice the outer diameter.
[0007] Furthermore, the length of the first transverse tube is 20 mm.
[0008] Furthermore, the length of the second vertical pipe is greater than 200 mm.
[0009] Furthermore, the fourth inclined tube and the four-way valve are arranged to be relatively inclined.
[0010] Furthermore, the outer diameters of the first vertical tube, the first horizontal tube, the first oblique tube, the second vertical tube, the second oblique tube, the third oblique tube, the third vertical tube, the fourth oblique tube and the fourth vertical tube are all 15.88 mm. Furthermore, the first horizontal tube, the second oblique tube and the third oblique tube are all provided with vibration damping blocks.
[0011] The beneficial effects of the utility model are:
[0012] (1) The pipeline structure formed by sequentially connecting the first vertical pipe, the first horizontal pipe, the first oblique pipe, the second vertical pipe, the second oblique pipe, the third oblique pipe, the third vertical pipe, the fourth oblique pipe and the fourth vertical pipe can effectively disperse stress and reduce vibration. In addition, the entire structure is not equipped with a muffler, thereby reducing costs while improving the sealing performance of the entire pipeline.
[0013] (2) The connection parts among the first vertical tube, the first horizontal tube, the first oblique tube, the second vertical tube, the second oblique tube, the third oblique tube, the third vertical tube, the fourth oblique tube and the fourth vertical tube are designed to be bent, so as to further improve the stress dispersion effect, and the bending radius is specifically limited so that the bending degree is in a better state, thereby improving the shock absorption performance of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;
[0015] Figure 2 It is a left side schematic diagram of the structure of the utility model;
[0016] Figure 3 It is a top view schematic diagram of the structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the installation structure of the utility model;
[0018] Marked in the figure, 1-first vertical pipe, 2-first horizontal pipe, 3-first oblique pipe, 4-second vertical pipe, 5-second oblique pipe, 6-third oblique pipe, 7-third vertical pipe, 8-fourth oblique pipe, 9-fourth vertical pipe, 10-four-way valve, 11-vibration damping block. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings.
[0020] like Figure 1-4As shown, the embodiment of the present application proposes a damping device for an air intake pipe of a rotary compressor, comprising a first vertical pipe 1 for connecting to an air intake port of the compressor and extending upward, wherein the upper end of the first vertical pipe 1 is sequentially connected to a first horizontal pipe 2, a first oblique pipe 3, a second vertical pipe 4, a second oblique pipe 5, a third oblique pipe 6, a third vertical pipe 7, a fourth oblique pipe 8 and a fourth vertical pipe 9, wherein the upper end of the fourth vertical pipe 9 is connected to a four-way valve 10; the first horizontal pipe 2 extends toward the exhaust port of the compressor, the first oblique pipe 3 extends downward and in a direction away from the compressor, and the second The inclined tube 5 extends obliquely downward, the third inclined tube 6 extends obliquely upward, and the second inclined tube 5 and the third inclined tube 6 are arranged around the outside of the compressor; the fourth inclined tube 8 extends upward and toward the compressor; the connecting parts among the first vertical tube 1, the first horizontal tube 2, the first inclined tube 3, the second vertical tube 4, the second inclined tube 5, the third inclined tube 6, the third vertical tube 7, the fourth inclined tube 8 and the fourth vertical tube 9 are all bent and the outer diameter of the tube is the same everywhere, and the bending radius is 2-2.5 times the outer diameter of the tube.
[0021] It should be noted that the pipeline structure formed by sequentially connecting the first vertical pipe 1, the first transverse pipe 2, the first oblique pipe 3, the second vertical pipe 4, the second oblique pipe 5, the third oblique pipe 6, the third vertical pipe 7, the fourth oblique pipe 8 and the fourth vertical pipe 9 can effectively disperse stress and reduce vibration, and the entire structure is not equipped with a muffler, which reduces costs while improving the sealing performance of the entire pipeline. In addition, the connection parts between the first vertical pipe 1, the first transverse pipe 2, the first oblique pipe 3, the second vertical pipe 4, the second oblique pipe 5, the third oblique pipe 6, the third vertical pipe 7, the fourth oblique pipe 8 and the fourth vertical pipe 9 are bent, which further improves the effect of stress dispersion, and specifically limits the bending radius, so that the bending degree is in a better state, thereby improving the shock absorption performance of the overall structure.
[0022] Specifically, in order to ensure the convenience of the overall pipeline installation process, the outer diameter of the overall intake pipe structure is the diameter of the reserved matching opening of the compressor intake port to ensure adaptability. This ensures that the intake pipe opening is not processed by shrinking or expanding, and does not affect the strength of the pipeline itself. Preferably, in this embodiment, the outer diameters of the first vertical pipe 1, the first horizontal pipe 2, the first inclined pipe 3, the second vertical pipe 4, the second inclined pipe 5, the third inclined pipe 6, the third vertical pipe 7, the fourth inclined pipe 8 and the fourth vertical pipe 9 are all 15.88mm, and thus the bending radius of the bending part of the connecting part between each pipe is preferably 30mm.
[0023] The length of the first vertical tube 1 should not be too short to avoid annealing after welding, and the bending section is easy to break. It should not be too long either. Experimental verification shows that if it is too long, the bending part of the corresponding position is easy to generate large stress. Therefore, it is generally designed to be twice the outer diameter plus the welding length. Preferably, the total length of the first vertical tube 1 and the welding part is 50mm, wherein the main body of the first vertical tube 1 is 30mm long, and in order to ensure the sealing and stability of the connection, the length of the welding part is 20mm. Moreover, the length of the first horizontal tube 2 is preferably 20mm, to ensure that the stress of the bending parts at both ends of the first horizontal tube 2 will not be relatively concentrated, and the setting of the first horizontal tube 2 is convenient for adding vibration damping blocks 11.
[0024] Moreover, the length of the second vertical pipe 4 is greater than 200 mm. The length of the second vertical pipe 4 should not be too small to avoid the problem of poor vibration reduction effect caused by insufficient height of the overall pipeline. In this embodiment, the length is 207 mm, which can meet the overall height of the actual compressor and ensure that the size of the entire pipeline is compatible with the size of the compressor body.
[0025] The fourth inclined tube 8 and the four-way valve 10 are arranged relatively tilted, and the fourth inclined tube 8 and the four-way valve 10 are at a certain angle, and are not parallel or vertical. In this way, the force on the four-way valve 10 can be divided into two directions, parallel and vertical, rather than unidirectional force.
[0026] The first transverse tube 2, the second oblique tube 5 and the third oblique tube 6 are all provided with a vibration damping block 11, which is a slotted eccentric annular rubber block weighing 106g and having a circle of grooves in the middle for wire clamp bundling and limiting. The diameter of the middle circular hole is the outer diameter of the pipe.
[0027] In summary, the utility model proposes a damping device for an air intake pipe of a rotary compressor, comprising a first vertical pipe 1 for connecting to an air intake port of the compressor and extending upward, wherein the upper end of the first vertical pipe 1 is sequentially connected to a first horizontal pipe 2, a first oblique pipe 3, a second vertical pipe 4, a second oblique pipe 5, a third oblique pipe 6, a third vertical pipe 7, a fourth oblique pipe 8 and a fourth vertical pipe 9, wherein the upper end of the fourth vertical pipe 9 is connected to a four-way valve 10; the first horizontal pipe 2 extends toward the exhaust port of the compressor, the first oblique pipe 3 extends downward and in a direction away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the second oblique pipe 4 extends downward and away from the compressor, and the first ... 5 extends obliquely downward, the third oblique tube 6 extends obliquely upward, and the second oblique tube 5 and the third oblique tube 6 are arranged around the outside of the compressor; the fourth oblique tube 8 extends upward and toward the compressor; the connection parts between the first vertical tube 1, the first horizontal tube 2, the first oblique tube 3, the second vertical tube 4, the second oblique tube 5, the third oblique tube 6, the third vertical tube 7, the fourth oblique tube 8 and the fourth vertical tube 9 are all bent and the outer diameter of the tube is the same everywhere, and the bending radius is 2-2.5 times the outer diameter of the tube. The overall structure effectively disperses stress and improves vibration reduction characteristics. In addition, the overall structure has no other additional fixings or silencers, is easy to process and has low cost.
Claims
1. A vibration damping device for a suction pipe of a rotary compressor, characterized in that: The invention comprises a first vertical pipe (1) for connecting to the air intake port of a compressor and extending upwards, wherein the upper end of the first vertical pipe (1) is connected in sequence to a first horizontal pipe (2), a first inclined pipe (3), a second vertical pipe (4), a second inclined pipe (5), a third inclined pipe (6), a third vertical pipe (7), a fourth inclined pipe (8) and a fourth vertical pipe (9), and the upper end of the fourth vertical pipe (9) is connected to a four-way valve (10); the first horizontal pipe (2) extends toward the exhaust port of the compressor, the first inclined pipe (3) extends downwards and in a direction away from the compressor, the second inclined pipe (5) extends obliquely downwards, and the The third inclined tube (6) extends obliquely upward, and the second inclined tube (5) and the third inclined tube (6) are arranged around the outside of the compressor; the fourth inclined tube (8) extends upward and toward the compressor; the connecting parts among the first vertical tube (1), the first horizontal tube (2), the first inclined tube (3), the second vertical tube (4), the second inclined tube (5), the third inclined tube (6), the third vertical tube (7), the fourth inclined tube (8) and the fourth vertical tube (9) are all bent and the outer diameters of the tubes are the same everywhere, and the bending radius is 2-2.5 times the outer diameter of the tube.
2. The vibration reduction device for the suction pipe of the rotary compressor according to claim 1, characterized in that: The length of the first vertical pipe (1) is twice the outer diameter.
3. The vibration reduction device for the suction pipe of the rotary compressor according to claim 1, characterized in that: The length of the first transverse tube (2) is 20 mm.
4. The vibration reduction device for the intake pipe of a rotary compressor according to claim 1, characterized in that: The second vertical pipe (4) is longer than 200 mm.
5. The vibration reduction device for the intake pipe of a rotary compressor according to claim 1, characterized in that: The fourth inclined tube (8) and the four-way valve (10) are arranged to be relatively inclined.
6. The vibration reduction device for the intake pipe of a rotary compressor according to claim 1, characterized in that: The outer diameters of the first vertical tube (1), the first horizontal tube (2), the first inclined tube (3), the second vertical tube (4), the second inclined tube (5), the third inclined tube (6), the third vertical tube (7), the fourth inclined tube (8) and the fourth vertical tube (9) are all 15.88 mm.
7. The vibration reduction device for the intake pipe of a rotary compressor according to claim 1, characterized in that: The first transverse tube (2), the second inclined tube (5) and the third inclined tube (6) are all provided with vibration-damping blocks (11).