Exhaust coil assembly in compressor

Abstract

The utility model discloses an exhaust coil assembly in a compressor, which comprises an exhaust noise reduction cover, the exhaust noise reduction cover is connected with an inner exhaust coil, the inner exhaust coil is connected with a plurality of square bourdon tubes, a U-shaped tube section is connected among the square bourdon tubes, the U-shaped tube section is provided with a damping reed tube, and the damping reed tube is connected with the inner exhaust coil. The end of the square spring tube is connected with a silencing cavity, and the other end of the silencing cavity is connected with an insertion tube. According to the exhaust coil assembly, pulsating pressure can be greatly eliminated, exhaust noise can be greatly reduced, external vibration force and unbalanced fluctuation can be absorbed, the risk that the coil is broken due to the fact that overturning force generated by large current acts on the coil during transportation external force jolting and starting and stopping moments of a compressor is greatly reduced, and the product reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor production, in particular to an exhaust coil assembly in a compressor. Background Art

[0002] During the production process, reciprocating piston compressors often experience anomalies such as compressor coil breakage at customer sites. These breakages prevent the compressor's high-temperature, high-pressure refrigerant from reaching the condenser, rendering the refrigeration system inoperable and causing the compressor to fail completely. In actual production and operation, not only have customers and users reported discovering these issues, but the company has also discovered, during its 200,000-cycle start-stop test, that the compressor failed to operate before the test cycle was complete, and that after the shell was opened, the compressor coil breakage was discovered.

[0003] At the same time, even if the compressor is working normally, it often makes noise, and its noise frequency band has low frequency and high frequency. By changing and improving the accuracy of parts and balancing the inertial force, the compressor noise still has no effect. Specifically, the low frequency and high frequency sound bands still cannot be improved and reduced. After investigation, it was found that the main reason is that the larger compressor generates exhaust pressure pulsation after passing through the exhaust valve group, which causes a significant increase in noise. Summary of the Invention

[0004] The purpose of the utility model is to provide an exhaust coil assembly in a compressor in order to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An exhaust coil assembly in a compressor includes an exhaust silencer cover, the exhaust silencer cover is connected to an inner exhaust coil, the inner exhaust coil is connected to multiple sections of square spring tubes, U-shaped tube sections are connected between the multiple sections of square spring tubes, and a vibration-damping spring tube is provided on the U-shaped tube section. The end of the square spring tube is connected to a silencer chamber, and the other end of the silencer chamber is connected to a cannula.

[0007] The exhaust coil assembly, through the arrangement of the square spring tube, the U-shaped tube section, the vibration-damping spring tube and the silencer chamber, can greatly eliminate pulsating pressure, reduce exhaust noise, absorb external vibration forces and unbalanced fluctuations, and improve the stability and reliability of the compressor.

[0008] The use of multiple multi-turn square spring tubes and the silencer cavity increases the volume of the exhaust cavity, and the staggered arrangement and action of multiple open partitions inside the silencer cavity greatly reduces the compressor exhaust pulsation, especially the pressure pulsation, and reduces the compressor noise. At the same time, since the pulsating pressure is transmitted from the exhaust high-pressure end to the compressor exhaust pipe through the inner exhaust coil, it objectively plays a role in noise transmission. By arranging the vibration-damping spring tube in the U-shaped pipe section, the pulsating pressure and the unbalanced force of the movement are absorbed by the vibration-damping spring tube, thereby reducing the unbalanced force in the transmission path and further reducing the compressor noise.

[0009] Furthermore, the multiple sections of square spring tubes include a first square spring tube and a second square spring tube, one end of the first square spring tube is connected to the inner exhaust coil and the other end is connected to the U-shaped tube section, and one end of the second square spring tube is connected to the U-shaped tube section and the other end is connected to the silencer chamber.

[0010] Furthermore, the square spring tube is wound 2 to 10 times, and the number of turns of the first square spring tube is not less than the number of turns of the second square spring tube.

[0011] Furthermore, a damping spring tube is sleeved onto the U-shaped tube section, with bent sections at each end connecting to the square spring tube. The damping spring tube itself provides both cushioning and vibration reduction functions. The U-shaped tube section, combined with a pair of bent and redirected sections, can connect to the square spring tube in two directions, allowing the entire exhaust coil to be steered for placement within the compressor's interior.

[0012] Furthermore, the diameter of the square spring tube is smaller than the diameter of the vibration-damping spring tube, and the square spring tube and the U-shaped tube section are connected as an integral structure.

[0013] Furthermore, the muffler chamber is a curved tube muffler chamber, and both ends of the muffler chamber are respectively provided with plug holes, and the plug holes are connected to the insert tube or the square spring tube.

[0014] Furthermore, a plurality of partitions are provided in the silencer chamber, and the plurality of partitions are arranged at intervals. There are gaps between the partitions and the inner periphery of the silencer chamber. The plurality of gaps are staggered, so that a plurality of silencer chambers can be formed in the silencer chamber. When the airflow passes through, the airflow pressure pulsation can be greatly reduced to reduce the exhaust noise and fluctuation.

[0015] Furthermore, the intubation tube is an angled intubation tube, one end of which is inserted into the muffler cavity and the other end is connected to the compressor exhaust pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The exhaust coil assembly can greatly eliminate pulsating pressure, reduce exhaust noise, absorb external vibration force and unbalanced fluctuations, and improve the stability and reliability of the compressor through the arrangement of the square spring tube, U-shaped tube section, the vibration-damping spring tube and the silencer chamber; 2. The square spring tube and the U-shaped tube section are connected with multiple turns of winding, and the whole coil is equivalent to a flexible spring with multiple dimensions in one position. Compared with the unwound or less-wound coil with greater stiffness, this spring-type connection can buffer and absorb external forces, which greatly reduces the compressor's external force bumps during transportation, and the large current at the moment of startup and shutdown. Generate an overturning force on the coil, which increases the risk of coil breakage and improves product reliability; 3. Use multiple multi-turn square spring tubes and the silencer chamber to increase the volume of the exhaust chamber, and then use multiple open partitions inside the silencer chamber to stagger and act, which greatly reduces the compressor exhaust pulsation, especially the pressure pulsation, and reduces the compressor noise; at the same time, because the pulsating pressure is transmitted from the exhaust high-pressure end through the inner exhaust coil to the compressor exhaust pipe, it objectively plays a role in noise transmission. By arranging the vibration-damping spring tube in the U-shaped pipe section, the pulsating pressure and the unbalanced force of the movement are absorbed by the vibration-damping spring tube, which reduces the unbalanced force in the transmission path and further reduces the compressor noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an exhaust coil assembly in a compressor of the present invention;

[0018] Figure 2 This is a structural schematic diagram of a muffler cavity on an exhaust coil assembly in a compressor of the present invention;

[0019] Figure 3 It is the (BB) cross-sectional view of the anechoic cavity;

[0020] In the figure: 1. Exhaust silencer cover; 2. Inner exhaust coil; 3. First square spring tube; 4. U-shaped pipe section; 5. Second square spring tube; 6. Silencer cavity; 601. Connecting hole; 7. Insert tube; 8. First partition; 9. Second partition; 10. Notch; 11. Vibration-damping spring tube; 12. Bent pipe section. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1 As shown, an exhaust coil assembly in a compressor includes an exhaust silencer cover 1, the exhaust silencer cover 1 is connected to an inner exhaust coil 2, the inner exhaust coil 2 is connected to multiple sections of square spring tubes, U-shaped tube sections 4 are connected between the multiple sections of the square spring tubes, a vibration-damping spring tube 11 is provided on the U-shaped tube section 4, the end of the square spring tube is connected to a silencer chamber 6, and the other end of the silencer chamber 6 is connected to a plug 7.

[0024] The exhaust coil assembly, through the arrangement of the square spring tube, the U-shaped tube section 4, the vibration-damping spring tube 11 and the muffler chamber 6, can greatly eliminate pulsating pressure, reduce exhaust noise, absorb external vibration forces and unbalanced fluctuations, and improve the stability and reliability of the compressor.

[0025] The square spring tube and the vibration-damping spring tube are connected by multiple multi-turn wound coils. The entire coil is equivalent to a multi-dimensional flexible spring. Compared with the unwound or less-wound coils with greater stiffness, this spring-type connection can buffer and absorb external forces, thereby greatly reducing the risk of coil breakage caused by external force bumps during transportation and overturning forces generated by large currents at the moment of startup and shutdown, thereby improving product reliability.

[0026] The use of multiple multi-turn square spring tubes and the silencer cavity increases the volume of the exhaust cavity, and the staggered arrangement and action of multiple open partitions inside the silencer cavity greatly reduces the compressor exhaust pulsation, especially the pressure pulsation, and reduces the compressor noise. At the same time, since the pulsating pressure is transmitted from the exhaust high-pressure end to the compressor exhaust pipe through the inner exhaust coil, it objectively plays a role in noise transmission. By arranging the vibration-damping spring tube in the U-shaped pipe section, the pulsating pressure and the unbalanced force of the movement are absorbed by the vibration-damping spring tube, thereby reducing the unbalanced force in the transmission path and further reducing the compressor noise.

[0027] The exhaust silencer cover 1 is connected to the exhaust chamber on the cylinder seat inside the compressor, and the insert pipe 7 is connected to the exhaust pipe on the compressor casing. After the gas passes through these square spring tubes, U-shaped pipe sections and the silencer chamber, its noise can be significantly reduced, thereby reducing the operating noise of the entire compressor.

[0028] Specifically in this embodiment, the multiple sections of square spring tubes include a first square spring tube 3 and a second square spring tube 5, one end of the first square spring tube 3 is connected to the inner exhaust coil 2, and the other end is connected to the U-shaped tube section 4, one end of the second square spring tube 5 is connected to the U-shaped tube section 4, and the other end is connected to the muffler chamber 6.

[0029] The arrangement of the first square spring tube 3 and the second square spring tube 5 can not only extend the exhaust path and volume, but also better buffer and absorb external forces, allowing the airflow to be discharged more smoothly, thereby reducing exhaust noise.

[0030] Furthermore, the number of turns of the square spring tube is not less than 2, for example, 2 to 10 turns. The number of turns of the square spring tubes on both sides can be equal or unequal. In this embodiment, the first square spring tube 3 is wound 3 times, and the second square spring tube 5 is wound 2 times.

[0031] Furthermore, the vibration-damping reed tube 11 is sleeved on the U-shaped tube section 4. The two ends of the U-shaped tube section 4 are provided with bent tube sections 12. The bent tube sections 12 are connected to the square spring tube. The vibration-damping reed tube is also sleeved on the bent tube section 12.

[0032] The U-shaped pipe section 4 cooperates with a pair of bent pipe sections 12 that bend and turn, and can connect the square spring tube from two directions, that is, the entire exhaust coil can be turned so that it can be coiled in the internal space of the compressor. The arrangement of the U-shaped pipe section 4 can also make full use of some space in the compressor for placement when extending the path and forming a turn.

[0033] Furthermore, the diameter of the square spring tube is smaller than the diameter of the vibration-damping spring tube 11 , and the square spring tube and the U-shaped tube section 4 (including the bent tube section) are an integrally formed structure.

[0034] Further, combined Figure 2 and Figure 3 As shown, the muffler chamber 6 is a curved tube muffler chamber with an arc of 160-180 degrees. Compared with a straight tube, it has a better muffler effect and is also convenient for arrangement in the compressor housing. Both ends of the muffler chamber 6 are respectively provided with a plug hole 601, and the plug hole 601 is connected to the insert tube 7 or the second square spring tube 5.

[0035] Furthermore, a plurality of partitions are provided in the muffler cavity 6 , and the plurality of partitions are arranged at intervals. There are gaps 10 between the partitions and the inner periphery of the muffler cavity, and the plurality of gaps 10 are arranged in a staggered manner.

[0036] By arranging the partition plate and the notch 10 , a plurality of muffler chambers can be formed in the muffler cavity, and the airflow pressure pulsation can be greatly reduced when the airflow passes through, thereby reducing the exhaust noise and fluctuation.

[0037] In this embodiment, two front and rear partitions are used, namely the first partition 8 and the second partition 9. The height of the two partitions is not less than half of the inner diameter of the muffler chamber 6, and the front and rear notches 20 are staggered in the axial and circumferential directions.

[0038] Furthermore, the insert tube 7 is an angled insert tube, for example, bent 90 degrees, so that one end thereof is inserted into the muffler cavity and the other end is connected to the compressor exhaust pipe.

[0039] 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. An exhaust coil assembly in a compressor, characterized in that: It includes an exhaust silencer cover, which is connected to an inner exhaust coil, which is connected to multiple sections of square spring tubes, and U-shaped tube sections are connected between the multiple sections of square spring tubes. A vibration-damping spring tube is provided on the U-shaped tube section. The end of the square spring tube is connected to a silencer chamber, and the other end of the silencer chamber is connected to a cannula.

2. The exhaust coil assembly in the compressor according to claim 1, characterized in that: The multiple sections of square spring tubes include a first square spring tube and a second square spring tube, one end of the first square spring tube is connected to the inner exhaust coil and the other end is connected to the U-shaped tube section, and one end of the second square spring tube is connected to the U-shaped tube section and the other end is connected to the muffler chamber.

3. The exhaust coil assembly in the compressor according to claim 2, characterized in that: The square spring tube is wound 2 to 10 times, and the number of turns of the first square spring tube is not less than the number of turns of the second square spring tube.

4. The exhaust coil assembly in the compressor according to claim 1, characterized in that: The vibration damping spring tube is sleeved on the U-shaped tube section. Both ends of the U-shaped tube section are provided with bent tube sections, and the bent tube sections are connected to the square spring tube.

5. The exhaust coil assembly in the compressor according to claim 1, characterized in that: The diameter of the square spring tube is smaller than the diameter of the vibration damping spring tube, and the square spring tube and the U-shaped tube section are an integrally formed structure.

6. The exhaust coil assembly in the compressor according to claim 1, characterized in that The muffler chamber is a curved tube muffler chamber, and both ends of the muffler chamber are respectively provided with plug holes, and the plug holes are connected to the insert tube or the square spring tube.

7. The exhaust coil assembly in the compressor according to claim 1 or 6, characterized in that: A plurality of partitions are further provided in the muffler chamber, the plurality of partitions are arranged at intervals, there are gaps between the partitions and the inner circumference of the muffler chamber, and the plurality of gaps are arranged in a staggered manner.

8. The exhaust coil assembly in the compressor according to claim 1, characterized in that: The insert pipe is an angled insert pipe, one end of which is inserted into the muffler cavity and the other end is connected to the compressor exhaust pipe.

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