Silencing device for drain pipe

Abstract

The utility model discloses a drain pipe silencer, and relates to the technical field of drain pipe silencing. The silencer comprises a silencing cabin and a gas-liquid mixing cabin, a partition plate is arranged between the silencing cabin and the gas-liquid mixing cabin, a through hole is formed in the partition plate and communicated with the silencing cabin and the gas-liquid mixing cabin, vent holes are formed in the silencing cabin, a water inlet hole is formed in the gas-liquid mixing cabin, and the silencing cabin is filled with silencing materials. Due to the design that the silencing cabin is filled with silencing materials and the gas-liquid mixing cabin is designed, noise generated when water flows through can be effectively absorbed and attenuated, and the noise level in the recirculating aquaculture system is lowered; the components such as the air guide pipe and the bowl-shaped spoiler can adjust and guide water flow and reduce formation of vortex and turbulent flow, so that the water flow passes through the system more stably and orderly, the operation efficiency and the water quality stability of the recirculating aquaculture system are improved, and noise is further reduced; by means of the components such as the adjusting ring and the air adjusting valve, a user can flexibly adjust water flow and air flux according to actual requirements and water quality conditions, and the breeding environment is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipe silencing, in particular to a drainage pipe silencing device. Background Art

[0002] In the recirculating aquaculture system, water quality management and water flow control are crucial links. This system not only reduces the water resource consumption in the aquaculture process by recycling water resources, but also maintains the stability of water quality through filtration and purification, providing a good growth environment for aquatic organisms. However, in the recirculating aquaculture process, the noise generated when water flows through pipes and equipment often becomes a problem that cannot be ignored.

[0003] With the increase in aquaculture density and the refinement of aquaculture technology, the hydrodynamic characteristics inside the circulating water system have become more complex, and at the same time have brought more significant noise problems. These noises not only come from the direct impact of water flow on pipes and equipment, but may also be aggravated by factors such as uneven water flow speed and vortex formation, which have an adverse impact on the growth environment of aquatic organisms and the overall operating environment of the aquaculture system. Especially in some high-end aquaculture projects or aquaculture systems with high environmental requirements, effective noise control has become an important means to improve aquaculture quality and environmental friendliness.

[0004] When designing traditional recirculating aquaculture systems, emphasis is often placed on improving water treatment efficiency and optimizing water circulation paths, but noise control is relatively weak. In actual operation, the noise generated when water flows through pipes and equipment is often difficult to avoid, which not only affects the growth performance and health status of aquatic organisms, but also brings troubles to the operation and management of the aquaculture system. Therefore, there is an urgent need to design a silencer to control and reduce the noise generated by water flowing through pipes.

[0005] Based on this, the applicant proposed a drainage pipe silencing device to solve the above technical problems. Utility Model Content

[0006] The utility model aims at the deficiencies in the prior art and provides a drainage pipe silencing device.

[0007] The utility model solves the problem through the following technical solutions:

[0008] A drainage pipe silencing device comprises a silencing chamber and a gas-liquid mixing chamber, wherein a partition is arranged between the silencing chamber and the gas-liquid mixing chamber, a through hole is arranged on the partition to connect the silencing chamber and the gas-liquid mixing chamber, an air vent is arranged on the silencing chamber, a water inlet is arranged on the gas-liquid mixing chamber, and the silencing chamber is filled with silencing material.

[0009] Preferably, the water inlet hole includes at least one of a water inlet hole A and a water inlet hole B, the water inlet hole A is arranged at the bottom of the gas-liquid mixing chamber, and the water inlet hole B is arranged on the side of the gas-liquid mixing chamber.

[0010] Preferably, an adjustment ring is slidably arranged or threadedly connected on the outer side wall of the gas-liquid mixing chamber, and the width of the adjustment ring is greater than the size of the water inlet hole B.

[0011] Preferably, the vent holes are arranged on the top or side of the soundproofing cabin.

[0012] Preferably, an air regulating valve is provided on the outside of the soundproofing cabin, and the air regulating valve is communicated with the vent hole.

[0013] Preferably, an air duct is provided in the gas-liquid mixing chamber, and the air duct is communicated with the through hole.

[0014] Preferably, a bowl-shaped spoiler is provided at the bottom of the air guide duct.

[0015] Preferably, the air guide tube is also provided with a flow stabilizing hole.

[0016] Preferably, a mounting hole is further provided at the bottom of the gas-liquid mixing chamber, and a connector is provided on the mounting hole, and the connector is plugged or threadedly connected or integrally provided on the mounting hole.

[0017] Preferably, the connector comprises a straight pipe joint or an elbow pipe joint.

[0018] Preferably, it also includes a hook, a connecting ring is provided at the bottom of the hook, the gas-liquid mixing chamber or the silencer chamber is clamped on the connecting ring, a fastener is also provided on the hook, a siphon breaking pipe is also provided in the gas-liquid mixing chamber, and the siphon breaking pipe passes through the silencer chamber and is connected to the siphon pipe.

[0019] The beneficial effects of the utility model are:

[0020] 1. Significantly improve noise control effect: Through the sound-absorbing materials filled in the sound-absorbing cabin and the design of the gas-liquid mixing cabin, the device can effectively absorb and attenuate the noise generated by the water flow, significantly reduce the noise level in the recirculating aquaculture system, and provide a quieter and more suitable growth environment for aquatic organisms;

[0021] 2. Optimize water flow: The air guide tube, bowl-shaped spoiler and other components in the device can regulate and guide the water flow, reduce the formation of vortex and turbulence, and make the water flow more stable and orderly through the system, thereby improving the operating efficiency and water quality stability of the recirculating aquaculture system, and further reducing noise;

[0022] 3. Enhanced system flexibility: The device is designed with components such as adjustment rings and gas regulating valves, allowing users to flexibly adjust water flow and gas flux according to actual breeding needs and water quality conditions, optimize the breeding environment, and meet the growth needs of different types of aquatic organisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of embodiment 1 of the utility model.

[0025] Figure 2 It is a sectional view of the three-dimensional structure of Example 1 of the utility model.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of embodiment 2 of the present utility model.

[0027] Figure 4 It is a sectional view of the three-dimensional structure of Example 2 of the utility model.

[0028] Figure 5 It is a three-dimensional structural schematic diagram of embodiment 3 of the present utility model.

[0029] Figure 6 It is a sectional view of the three-dimensional structure of Example 3 of the present utility model.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of embodiment 4 of the present utility model.

[0031] Figure 8 It is a three-dimensional structural schematic diagram of embodiment 5 of the present utility model.

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of Example 6 of the utility model.

[0033] Fig.10 It is a sectional view of the three-dimensional structure of Example 7 of the present utility model.

[0034] Fig.11 It is a schematic diagram of the straight pipe installation three-dimensional structure of the utility model.

[0035] Fig.12 It is a schematic diagram of the three-dimensional structure of the bent pipe installation of the utility model.

[0036] Fig.13 It is a schematic diagram of the three-dimensional structure of Example 8 of the utility model.

[0037] Fig.14 It is a sectional view of the three-dimensional structure of Example 8 of the present utility model.

[0038] In the figure: 1. Silencing cabin, 2. Gas-liquid mixing cabin, 3. Partition, 4. Through hole, 5. Vent, 61. Water inlet A, 62. Water inlet B, 7. Mounting hole, 8. Silencing material, 9. Adjusting ring, 10. Air regulating valve, 11. Air guide pipe, 12. Bowl-shaped spoiler, 13. Flow stabilizing hole, 14. Straight pipe joint, 15. Elbow pipe joint, 16. Connecting ring, 17. Hook, 18. Fastener, 19. Rainbow breaking pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0040] like Figure 1 to Figure 2 , Figure 11 to Figure 12 As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, an air vent 5 is arranged on the silencing cabin 1, and the air vent 5 is arranged on the top or side of the silencing cabin 1, a water inlet is arranged on the gas-liquid mixing cabin 2, and the water inlet includes a water inlet A61, and the water inlet A61 is arranged at the bottom of the gas-liquid mixing cabin 2, and a mounting hole 7 is also arranged at the bottom of the gas-liquid mixing cabin 2, and a connector is arranged on the mounting hole 7, and the connector is plugged or threaded or integrally arranged on the mounting hole 7, and the connector includes a straight pipe joint 14 or a bent pipe joint 15, and the soundproofing cabin 1 is filled with a soundproofing material 8, and the soundproofing material 8 is a soundproofing cotton. Embodiment 2:

[0041] like Figure 3 to Figure 4 , Figure 11 to Figure 12As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, an air vent 5 is arranged on the silencing cabin 1, and the air vent 5 is arranged on the top or side of the silencing cabin 1, a water inlet is arranged on the gas-liquid mixing cabin 2, and the water inlet includes a water inlet B62, and the water inlet B62 is arranged on the side of the gas-liquid mixing cabin 2, and a mounting hole 7 is also arranged at the bottom of the gas-liquid mixing cabin 2, a connector is arranged on the mounting hole 7, and the connector is plugged or threaded or integrally arranged on the mounting hole 7, and the connector includes a straight pipe joint 14 or a bent pipe joint 15, and the soundproofing cabin 1 is filled with a soundproofing material 8, and the soundproofing material 8 is a soundproofing cotton. Embodiment 3:

[0042] like Figures 5 and 6 , Figure 11 to Figure 12 As shown, a drainage pipe silencing device of the utility model comprises a silencing chamber 1 and a gas-liquid mixing chamber 2, a partition 3 is arranged between the silencing chamber 1 and the gas-liquid mixing chamber 2, a through hole 4 is arranged on the partition 3 to connect the silencing chamber 1 and the gas-liquid mixing chamber 2, a vent 5 is arranged on the silencing chamber 1, and the vent 5 is arranged on the top or side of the silencing chamber 1, and a water inlet hole is arranged on the gas-liquid mixing chamber 2, and the water inlet hole includes a water inlet hole A61 and a water inlet hole B62, and the water inlet hole A61 is arranged on the gas-liquid mixing chamber 2. At the bottom, the water inlet B62 is arranged on the side of the gas-liquid mixing cabin 2, and the outer wall of the gas-liquid mixing cabin 2 is slidably arranged or threadedly connected with an adjusting ring 9, and the width of the adjusting ring 9 is greater than the size of the water inlet B62. The gas-liquid mixing cabin 2 is also provided with a mounting hole 7 at the bottom, and a connecting head is provided on the mounting hole 7. The connecting head is plugged or threadedly connected or integrally arranged on the mounting hole 7, and the connecting head includes a straight pipe joint 14 or a bent pipe joint 15. The soundproofing cabin 1 is filled with soundproofing material 8, and the soundproofing material 8 is soundproofing cotton. Embodiment 4:

[0043] like Figure 7 , Figure 11 to Figure 12As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, the silencing cabin 1 is provided with an air vent 5, the air vent 5 is arranged on the top or side of the silencing cabin 1, the gas-liquid mixing cabin 2 is provided with a water inlet hole, the water inlet hole comprises a water inlet hole A61 and a water inlet hole B62, the water inlet hole A61 is arranged at the bottom of the gas-liquid mixing cabin 2, and the water inlet hole B62 is arranged at the top of the gas-liquid mixing cabin 2. On the side of the liquid mixing cabin 2, an adjusting ring 9 is slidably arranged or threadedly connected on the outer wall of the gas-liquid mixing cabin 2, and the width of the adjusting ring 9 is greater than the size of the water inlet hole B62. A mounting hole 7 is also arranged at the bottom of the gas-liquid mixing cabin 2, and a connecting head is arranged on the mounting hole 7. The connecting head is plugged or threadedly connected or integrally arranged on the mounting hole 7, and the connecting head includes a straight pipe joint 14 or a bent pipe joint 15. The soundproofing cabin 1 is filled with soundproofing material 8, and the soundproofing material 8 is soundproofing cotton. An air regulating valve 10 is arranged on the outside of the soundproofing cabin 1, and the air regulating valve 10 is connected to the vent 5. Embodiment 5:

[0044] like Figure 8 , Figure 11 to Figure 12 As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, an air vent 5 is arranged on the silencing cabin 1, and the air vent 5 is arranged on the top or side of the silencing cabin 1, and a water inlet hole is arranged on the gas-liquid mixing cabin 2, and the water inlet hole comprises a water inlet hole A61 and a water inlet hole B62, and the water inlet hole A61 is arranged at the bottom of the gas-liquid mixing cabin 2, and the water inlet hole B62 is arranged on the side of the gas-liquid mixing cabin 2, and the outer wall of the gas-liquid mixing cabin 2 is slidably arranged or threadedly connected with an adjusting ring 9, and the width of the adjusting ring 9 is large. Due to the size of the water inlet hole B62, a mounting hole 7 is further provided at the bottom of the gas-liquid mixing cabin 2, and a connector is provided on the mounting hole 7. The connector is plugged or threaded or integrally provided on the mounting hole 7, and the connector includes a straight pipe joint 14 or a curved pipe joint 15. An air guide pipe 11 is provided in the gas-liquid mixing cabin 2, and the air guide pipe 11 is connected with the through hole 4, so that the air flow enters from the air guide pipe 11 and mixes with water. Because the liquid level is higher than the pipe mouth of the air guide pipe 11, the gas-liquid mixing point is lower than the liquid level, further reducing noise. The soundproofing cabin 1 is filled with soundproofing material 8, and the soundproofing material 8 is soundproofing cotton. An air regulating valve 10 is provided on the outside of the soundproofing cabin 1, and the air regulating valve 10 is connected with the air vent 5. Embodiment 6:

[0045] like Fig. 9 , Figure 11 to Figure 12 As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, a vent 5 is arranged on the silencing cabin 1, and the vent 5 is arranged on the top or side of the silencing cabin 1, a water inlet is arranged on the gas-liquid mixing cabin 2, and the water inlet includes a water inlet A61 and a water inlet B62, the water inlet A61 is arranged at the bottom of the gas-liquid mixing cabin 2, and the water inlet B62 is arranged on the side of the gas-liquid mixing cabin 2, an adjusting ring 9 is slidably arranged or threadedly connected on the outer side wall of the gas-liquid mixing cabin 2, and the width of the adjusting ring 9 is greater than the size of the water inlet B62, and a mounting hole 7 is also arranged at the bottom of the gas-liquid mixing cabin 2, and a mounting hole 7 is arranged on the mounting hole 7. A connector, which is plugged or threaded or integrally arranged on the mounting hole 7, and includes a straight pipe joint 14 or a bent pipe joint 15. An air duct 11 is arranged in the gas-liquid mixing cabin 2, and the air duct 11 is connected to the through hole 4. A bowl-shaped spoiler 12 is arranged at the bottom of the air duct 11, and the bowl-shaped spoiler 12 is inverted. When water flows through here and enters the sewer pipe, a relatively larger negative pressure will be generated below the bowl-shaped spoiler 12, so that the air inhaled from the air duct 11 is more sufficient, which is conducive to the water level rising, sealing the water inlet B62, avoiding noise at the water inlet B62, and further enhancing the controllability of water flow and airflow. The soundproofing cabin 1 is filled with soundproofing material 8, and the soundproofing material 8 is soundproofing cotton. An air regulating valve 10 is arranged on the outside of the soundproofing cabin 1, and the air regulating valve 10 is connected to the vent 5. Embodiment 7:

[0046] like Figures 10 to 12As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, an air vent 5 is arranged on the silencing cabin 1, and the air vent 5 is arranged on the top or side of the silencing cabin 1, and a water inlet hole is arranged on the gas-liquid mixing cabin 2, and the water inlet hole comprises a water inlet hole A61 and a water inlet hole B62, the water inlet hole A61 is arranged at the bottom of the gas-liquid mixing cabin 2, and the water inlet hole B62 is arranged on the side of the gas-liquid mixing cabin 2, an adjusting ring 9 is slidably arranged or threadedly connected on the outer side wall of the gas-liquid mixing cabin 2, and the width of the adjusting ring 9 is greater than the size of the water inlet hole B62, and a mounting hole 7 is also arranged at the bottom of the gas-liquid mixing cabin 2. A connector is provided on the mounting hole 7, and the connector is plugged or threaded or integrally provided on the mounting hole 7, and the connector includes a straight pipe joint 14 or a bent pipe joint 15. An air guide pipe 11 is provided in the gas-liquid mixing cabin 2, and the air guide pipe 11 is connected to the through hole 4. A bowl-shaped spoiler 12 is provided at the bottom of the air guide pipe 11, and a steady flow hole 13 is also provided on the air guide pipe 11, which is used to limit and stabilize the liquid level from exceeding the position of the steady flow hole 13. When the liquid level is higher than the steady flow hole 13, water will enter the air guide pipe 11 from the steady flow hole 13 and mix with the air, further increasing the water flow until the liquid level is stabilized at the position of the steady flow hole 13. The soundproofing cabin 1 is filled with a soundproofing material 8, and the soundproofing material 8 is a soundproofing cotton. An air regulating valve 10 is provided on the outside of the soundproofing cabin 1, and the air regulating valve 10 is connected to the vent 5.

[0047] In the above embodiments, the device is installed in a water circulation aquaculture system, and a straight pipe joint 14 or a bent pipe joint 15 can be selected for installation according to the position of the downpipe in the system. During installation, the air vent 5 is higher than the liquid level, and the water inlet is lower than the liquid level. Water enters the gas-liquid mixing chamber 2 from the water inlet, and air enters the gas-liquid mixing chamber 2 from the air vent 5 and the through hole 4. Then, water flows into the pipeline through the installation hole 7. The generated noise is blocked by the side wall and the liquid level of the gas-liquid mixing chamber 2, and enters the soundproofing chamber from the through hole 4 and is absorbed by the soundproofing material 8, thereby reducing or eliminating the noise. The device equipped with an air regulating valve 10 or an adjusting ring 9 can adjust the ventilation volume and water flow according to actual conditions to achieve stable water circulation and optimize the aquaculture environment. Embodiment 8:

[0048] like Figure 13 to Figure 14As shown, a drainage pipe silencing device of the utility model comprises a silencing cabin 1 and a gas-liquid mixing cabin 2, a partition 3 is arranged between the silencing cabin 1 and the gas-liquid mixing cabin 2, a through hole 4 is arranged on the partition 3 to connect the silencing cabin 1 and the gas-liquid mixing cabin 2, a vent 5 is arranged on the silencing cabin 1, and the vent 5 is arranged on the top or side of the silencing cabin 1, a water inlet is arranged on the gas-liquid mixing cabin 2, and the silencing cabin 1 is filled with a silencing material 8, and the silencing material 8 is The sound-absorbing cotton also includes a hook 17, a connecting ring 16 is arranged at the bottom of the hook 17, the gas-liquid mixing chamber 2 or the sound-absorbing chamber 1 is clamped on the connecting ring 16, and a fastener 18 is also arranged on the hook 17, the fastener 18 penetrates the hook 17, the fastener 18 can be a fastening screw, and a gripping portion is arranged on the outside of the fastening screw for the convenience of manual adjustment by the user, and a siphon breaking pipe 19 is also arranged in the gas-liquid mixing chamber 2, and the siphon breaking pipe 19 passes through the sound-absorbing chamber 1 and is connected to the siphon.

[0049] In Example 8, the device is directly hung on the cylinder wall by a hook 17 and fixed by a fastener 18. The cylinder is drained by a siphon. The siphon-breaking pipe 19 of the device is connected to the siphon. When the water level in the cylinder reaches the self-starting position of the siphon, the siphon starts to siphon automatically, and the liquid level drops. When the liquid level drops to the pipe opening position of the siphon-breaking pipe 19 in the gas-liquid mixing chamber 2, gas will enter from the pipe opening of the siphon-breaking pipe 19, thereby interrupting the siphoning of water. The liquid level rises to the self-starting position of the siphon again, and the siphon is started again, and the cycle is repeated in sequence. In this process, the gas and water are mixed at the pipe opening of the siphon-breaking pipe 19. Noise will be generated when the gas-liquid mixing chamber 2 is filled with water, and the generated noise is blocked by the side wall and liquid level of the gas-liquid mixing chamber 2, enters the soundproofing chamber from the through hole 4, and is absorbed by the sound-absorbing material 8, thereby reducing or eliminating the noise. After the device is installed, the valve on the siphon can be cancelled, and the liquid level can be determined by the position of the pipe mouth of the siphon-breaking pipe 19. After the liquid level rises and seals the pipe mouth of the siphon-breaking pipe 19, the drainage capacity will be enhanced. Because the drainage flow rate is greater than the water inlet flow rate, the liquid level will drop, and therefore the liquid level will hover at the pipe mouth of the siphon-breaking pipe 19, which will always generate noise. The sound-absorbing material 8 of the device can significantly reduce the noise.

[0050] In the above embodiments, the sound-absorbing material 8 is not only sound-absorbing cotton, but also various types of sound-insulating and breathable materials available on the market that we can use before the application date.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A drainage pipe silencing device, characterized in that: The invention comprises a soundproofing chamber (1) and a gas-liquid mixing chamber (2), wherein a partition (3) is arranged between the soundproofing chamber (1) and the gas-liquid mixing chamber (2), and a through hole (4) is arranged on the partition (3) to connect the soundproofing chamber (1) and the gas-liquid mixing chamber (2), the soundproofing chamber (1) is provided with an air vent (5), the gas-liquid mixing chamber (2) is provided with a water inlet hole, and the soundproofing chamber (1) is filled with a sound-absorbing material (8).

2. A drainage pipe silencing device according to claim 1, characterized in that: The water inlet hole comprises at least one of a water inlet hole A (61) and a water inlet hole B (62), wherein the water inlet hole A (61) is arranged at the bottom of the gas-liquid mixing chamber (2), and the water inlet hole B (62) is arranged on the side of the gas-liquid mixing chamber (2).

3. A drainage pipe silencing device according to claim 2, characterized in that: An adjusting ring (9) is slidably arranged or threadedly connected on the outer side wall of the gas-liquid mixing chamber (2), and the width of the adjusting ring (9) is greater than the size of the water inlet hole B (62).

4. A drainage pipe silencing device according to claim 1, characterized in that: The vent hole (5) is arranged on the top or side of the sound-absorbing cabin (1).

5. A drainage pipe silencing device according to claim 1, characterized in that: An air regulating valve (10) is arranged outside the muffler cabin (1), and the air regulating valve (10) is communicated with the vent hole (5).

6. A drainage pipe silencing device according to claim 1, characterized in that: An air guide pipe (11) is provided in the gas-liquid mixing chamber (2), and the air guide pipe (11) is in communication with the through hole (4).

7. A drainage pipe silencing device according to claim 6, characterized in that: A bowl-shaped spoiler (12) is provided at the bottom of the air guide pipe (11).

8. A drainage pipe silencing device according to claim 6, characterized in that: The air guide pipe (11) is also provided with a flow stabilizing hole (13).

9. A drainage pipe silencing device according to claim 1, characterized in that: The bottom of the gas-liquid mixing chamber (2) is also provided with a mounting hole (7), and a connector is provided on the mounting hole (7), and the connector is plugged or threadedly connected or integrally provided on the mounting hole (7).

10. A drainage pipe silencing device according to claim 1, characterized in that: The invention also comprises a hook (17), a connecting ring (16) is arranged at the bottom of the hook (17), the gas-liquid mixing chamber (2) or the muffler chamber (1) is clamped on the connecting ring (16), a fastener (18) is also arranged on the hook (17), a siphon breaking pipe (19) is also arranged in the gas-liquid mixing chamber (2), and the siphon breaking pipe (19) passes through the muffler chamber (1) and is connected to the siphon pipe.

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