Multi-stage water-cooling silencer and hot water cleaning machine

Abstract

The utility model discloses a multistage water-cooling silencer, which comprises an inner shell and a silencing component arranged in the inner shell, an outer shell is arranged outside the inner shell, a water sump is formed in the middle of the inner shell, a plurality of cooling water pipes are arranged in the inner shell, and the upper ends and the lower ends of the cooling water pipes are respectively communicated with a water inlet and a water outlet which are arranged on the water sump. The utility model further provides a hot water cleaning machine. According to the utility model, the inner layer and the outer layer of the inner shell in the silencer are respectively provided with the water sump and the cooling water pipe which are used for cooling and heat dissipation, and the cooling water is used for circulating and secondary cooling from outside to inside, so that the cooling effect of the silencer is improved, and the temperature of the cooling water discharged through heat exchange can reach 70-80 DEG C, and the cooling water can be used in daily life.

Description

Technical Field

[0001] The utility model belongs to the technical field of mufflers, and in particular relates to a multi-stage water-cooled muffler and a hot water cleaning machine. Background Art

[0002] When the engine is running, the cylinder head discharges high-temperature and high-pressure exhaust gas, which is mainly composed of carbon dioxide. In order to prevent the exhaust gas from affecting the subsequent combustion of the internal combustion chamber, the exhaust gas needs to be discharged quickly. Due to the large amount of exhaust gas discharged, it often produces a lot of noise during exhaust. In order to avoid pollution caused by these noises, it is necessary to reduce the exhaust sound and the decibel of the exhaust sound. Therefore, the muffler air inlet enters the internal muffler component for processing and is finally discharged through the exhaust port. In this process, high temperatures are generated inside and outside the muffler.

[0003] At present, in order to solve the problem of overheating in the silencing process, the existing mufflers usually adopt air cooling and open cooling methods. However, these two cooling methods are not good and can easily cause the muffler to overheat for a long time, resulting in a short service life. Utility Model Content

[0004] In view of the above-mentioned deficiencies, the purpose of the present utility model is to provide a multi-stage water-cooled silencer and a hot water cleaning machine, which solves the problem that the air-cooled and open heat dissipation methods in the prior art are not effective, easily causing the silencer to overheat for a long time and having a short service life.

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

[0006] A multi-stage water-cooled silencer comprises an inner shell and a silencer assembly arranged in the inner shell, wherein an outer shell is arranged outside the inner shell and a water tank is formed in the middle, a plurality of cooling water pipes are arranged in the inner shell, and the upper and lower ends of the cooling water pipes are respectively connected to a water inlet and a water outlet arranged on the water tank.

[0007] By adopting the above-mentioned structural design, water tanks and cooling water pipes for cooling and heat dissipation are respectively arranged on the inner and outer layers of the inner shell in the muffler, and cooling water is circulated from the outside to the inside for secondary cooling, thereby improving the cooling effect of the muffler. The temperature of the cooling water discharged through heat exchange can reach 70-80°C, which can be used for daily use.

[0008] Preferably, the water tank includes a first water tank and a second water tank, the first water tank is formed by an inner shell, an outer shell and end covers connected at both ends, and the second water tank is formed by a third shell and an end cover arranged at the end of the silencer assembly.

[0009] With the above-mentioned structural design, through the design of the first water tank and the second water tank, after cooling through the first water tank and the cooling water pipe, the rear end part of the silencer assembly is cooled again through the second water tank, thereby further improving the heat dissipation and cooling effect of the silencer.

[0010] Preferably, the water inlet is arranged on the first water tank, the water outlet is arranged on the second water tank, and both the first water tank and the second water tank are provided with sewage outlets.

[0011] The above structural design and the setting of the sewage outlet can be used to discharge the residual water in the first water tank and the second water tank after the muffler stops working, that is, after the cooling is completed, or to clean the scale in the first water tank and the second water tank after long-term use.

[0012] Preferably, the sewage outlet includes a fixing nut and a sealing member threadedly mounted on the fixing nut, and a sealing ring is provided at the connection between the sealing member and the fixing nut.

[0013] With the above structural design, the detachable design of the plugging piece makes it easy to discharge the residual water in the water tank from the sewage outlet, and also makes it easy to plug and has good sealing performance.

[0014] Preferably, the water inlet is arranged at the right end of the first water tank and connected to the cooling water source, and the water outlet is arranged on the right side of the second water tank and connected to the hot water cleaning machine, which can increase the cooling water stroke.

[0015] With the above structural design, cooling water enters from the right side of the first water tank, passes through the left side of the first water tank, enters the cooling water pipe, and then enters the second water tank before being discharged, thereby increasing the cooling water stroke, maximizing the cooling effect, and improving the waste heat utilization efficiency.

[0016] Preferably, an air inlet and an air outlet are respectively arranged on the end covers at both ends of the first water tank and the second water tank, and the air inlet is connected with the inner shell body through an air inlet pipe, and a sealing cover is provided at the end of the inner shell body, one end of the cooling water pipe is installed on the sealing cover and connected with the first water tank, and the other end is installed on the end cover away from the sealing cover and connected with the second water tank.

[0017] The above structural design can ensure that the exhaust gas directly enters the silencer assembly for silencer treatment without directly contacting the cooling water, and at the same time guides the cooling water into the cooling water pipe to perform secondary cooling treatment on the inner shell.

[0018] Preferably, a mounting flange is provided on the end cover at one end of the air inlet to facilitate the disassembly and assembly of the muffler.

[0019] Preferably, two ends of the silencer assembly are respectively located in the inner shell and the second water tank.

[0020] By adopting the above structural design, the temperature generated by the silencer component during the silencer process can be cooled at multiple locations, thereby improving the cooling efficiency.

[0021] Preferably, the multi-stage water-cooled silencer is made of rust-proof material.

[0022] The above structural design can ensure that the muffler will not be corroded under the long-term contact between the exhaust gas and the cooling water, thereby increasing the service life of the muffler.

[0023] The utility model also provides a hot water cleaning machine, comprising the multi-stage water-cooled silencer.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. The utility model improves the cooling effect of the muffler by respectively arranging water tanks and cooling water pipes for cooling and heat dissipation on the inner and outer layers of the inner shell of the muffler, and circulating cooling water from the outside to the inside for secondary cooling;

[0026] 2. The utility model adopts the design of the first water tank and the second water tank. After cooling through the first water tank and the cooling water pipe, the rear end of the silencer assembly is cooled again through the second water tank, further improving the heat dissipation and cooling effect of the silencer.

[0027] 3. After the cooling water is circulated and heat-exchanged multiple times inside and outside the muffler, the temperature of the discharged cooling water reaches 70-80°C, which can be used for daily use, thereby improving the waste heat utilization of the muffler;

[0028] 4. The utility model is provided with a sewage outlet on the water tank, and the sewage outlet is detachably provided with a plugging piece, which is convenient for discharging residual water in the water tank and cleaning scale through the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0030] Figure 1 It is a structural schematic diagram of the utility model;

[0031] Figure 2 yes Figure 1 Exploded diagram of

[0032] Figure 3 yes Figure 1 A cross-sectional view of

[0033] Figure 4 yes Figure 3 Enlarged view at A.

[0034] In the figure:

[0035] Inner shell 1, silencer assembly 2, outer shell 3, water tank 4, first water tank 4a, second water tank 4b, cooling water pipe 5, water inlet 6, water outlet 7, end cover 8, third shell 9, sewage outlet 10, fixing nut 10a, sealing piece 10b, sealing ring 10c, air inlet 11, air outlet 12, air inlet pipe 13, sealing cover 14, mounting flange 15. DETAILED DESCRIPTION

[0036] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0037] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] See also Figures 1 to 4 A multi-stage water-cooled silencer comprises an inner shell 1 and a silencer assembly 2 arranged in the inner shell 1. When the silencer is working, the silencer is silenced by the built-in silencer assembly 2. This structure belongs to the prior art and will not be described in detail here. The inner shell 1 is provided with an outer shell 3 outside, and a water tank 4 is formed in the middle. A plurality of cooling water pipes 5 are provided in the inner shell 1, and the upper and lower ends of the cooling water pipes 5 are respectively connected with the water inlet 6 and the water outlet 7 arranged on the water tank 4. The utility model injects cooling water into the water tank 4 through the water inlet 6 to perform the first water cooling on the high temperature generated by the inner shell 1, and then the cooling water enters the cooling water pipe 5 to perform the second water cooling inside the inner shell 1. This cooling method has multiple stages of cooling, thereby improving the cooling efficiency of the silencer, and at the same time improving the waste heat utilization efficiency of the silencer. The temperature of the discharged cooling water reaches 70-80°C, which can be used for daily use. In this embodiment, the multi-stage water-cooled silencer is made of rust-proof material.

[0039] In this embodiment, the number of the cooling water pipes 5 is 4, which are evenly distributed in the inner shell 1. This is only used as a preferred embodiment in the present utility model, but is not limited to the set number of the cooling water pipes 5 mentioned above.

[0040] See also Figure 3 Furthermore, the water tank 4 includes a first water tank 4a and a second water tank 4b. The first water tank 4a is formed by the inner shell 1, the outer shell 3 and the end caps 8 connected at both ends. The second water tank 4b is formed by the third shell 9 and the end cap 8 arranged at the end of the silencer assembly 2. Due to the arrangement of the silencer assembly 2 of the muffler, one end thereof is arranged in the inner shell 1, and the other end protrudes out of the end of the inner shell 1, that is, the two ends of the silencer assembly 2 are respectively located in the inner shell 1 and the second water tank 4b. Therefore, after being cooled by the water tank 4 and the cooling water pipe 5, there is still some heat at the other end of the silencer assembly 2. Therefore, the second water tank 4b can further take away the waste heat and further improve the cooling effect and waste heat utilization efficiency.

[0041] The water inlet 6 is arranged on the first water tank 4a, the water outlet 7 is arranged on the second water tank 4b, and the first water tank 4a and the second water tank 4b are both provided with a sewage outlet 10. In this embodiment, the water inlet 6 is arranged at the right end of the first water tank 4a and connected to the cooling water source, and the water outlet 7 is arranged on the right side of the second water tank 4b and connected to the hot water cleaning machine, which can increase the cooling water stroke. After the cooling water enters the first water tank 4a from the water inlet 6, the outside of the inner shell 1 is cooled by cold water, flows to the left end and enters the cooling water pipe 5 to cool the inside of the inner shell 1, and then flows into the second water tank 4b to cool the residual heat of the other end of the muffler component 2.

[0042] See also Figure 4 Further, the sewage outlet 10 includes a fixing nut 10a and a plugging member 10b threadedly mounted on the fixing nut 10a, and a sealing ring 10c is provided at the connection between the plugging member 10b and the fixing nut 10a. The sewage outlet 10 is set according to the size and dimensions of the muffler, and the residual water is discharged or the scale is cleaned after the muffler is cooled.

[0043] The end caps 8 at both ends of the first water tank 4a and the second water tank 4b are respectively provided with an air inlet 11 and an air outlet 12. One end of the muffler assembly 2 is installed at the air outlet 12, and the gas after the muffler treatment is discharged from the muffler assembly 2. The air inlet 11 is connected to the inner shell 1 through the air inlet pipe 13, and a sealing cover 14 is provided at the end of the inner shell 1. One end of the cooling water pipe 5 is installed on the sealing cover 14 and connected to the first water tank 4a, and the other end is installed on the end cap 8 away from the sealing cover 14 and connected to the second water tank 4b. The setting of the sealing cover 14 can ensure that the exhaust gas and cooling water entering from the air inlet 11 directly enter the muffler assembly 2 without contact for muffler treatment, and the sealing cover 14 is spaced a certain distance from the end cap 8 of the air inlet 11, so that the cooling water passing through the first water tank 4a can enter the cooling water pipe 5. At the same time, a mounting flange 15 is provided on the end cap 8 at one end of the air inlet 11.

[0044] The utility model also provides a hot water cleaning machine, comprising the multi-stage water-cooled silencer.

[0045] The working principle of the utility model is as follows:

[0046] The muffler is installed on the engine that needs industrial hot water for muffler treatment. The exhaust gas enters the muffler from the air inlet 11 and is muffled by the muffler assembly 2. At the same time, the water inlet 6 injects cooling water into the first water tank 4a to cool the outside of the inner shell 1. Then the cooling water flows along the inner shell 1 to the left bottom and enters the cooling water pipe 5, and then the inside of the inner shell 1 is water-cooled. Finally, the cooling water enters the second water tank 4b to cool the right end of the muffler assembly 2 again to take away the residual heat, and then is discharged from the water outlet 7. The discharged cooling water temperature reaches 70-80℃, and the water outlet 7 can be connected to the high-pressure pump in the hot water cleaning machine for pressurization for daily use. The utility model respectively arranges a first water tank 4a and a cooling water pipe 5 on the inner and outer layers of the inner shell 1 of the muffler, and then arranges a second water tank 4b on the right side of the muffler component 2, thereby realizing multi-stage cooling of the muffler, improving the cooling efficiency, and at the same time can maximize the utilization and conversion of waste heat, saving energy consumption, and is worthy of wide promotion.

[0047] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementations disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model. Other devices that are the same or similar to them are all within the protection scope of the utility model.

Claims

1. A multi-stage water-cooled muffler, comprising an inner shell (1) and a muffler assembly (2) arranged in the inner shell (1), characterized in that: An outer shell (3) is arranged outside the inner shell (1), and a water tank (4) is formed in the middle. A plurality of cooling water pipes (5) are arranged inside the inner shell (1), and the upper and lower ends of the cooling water pipes (5) are respectively connected to a water inlet (6) and a water outlet (7) arranged on the water tank (4).

2. A multi-stage water-cooled muffler as claimed in claim 1, characterized in that: The water tank (4) comprises a first water tank (4a) and a second water tank (4b); the first water tank (4a) is formed by enclosing an inner shell (1), an outer shell (3) and end covers (8) connected at both ends; and the second water tank (4b) is formed by enclosing a third shell (9) arranged at the end of the silencer assembly (2) and the end cover (8).

3. A multi-stage water-cooled muffler as claimed in claim 2, characterized in that: The water inlet (6) is arranged on the first water tank (4a), the water outlet (7) is arranged on the second water tank (4b), and both the first water tank (4a) and the second water tank (4b) are provided with sewage outlets (10).

4. A multi-stage water-cooled muffler as claimed in claim 3, characterized in that: The sewage outlet (10) comprises a fixing nut (10a) and a sealing member (10b) threadedly mounted on the fixing nut (10a), and a sealing ring (10c) is provided at the connection between the sealing member (10b) and the fixing nut (10a).

5. A multi-stage water-cooled muffler as claimed in claim 3, characterized in that: The water inlet (6) is arranged at the right end of the first water tank (4a) and connected to a cooling water source, and the water outlet (7) is arranged at the right side of the second water tank (4b) and connected to a hot water cleaning machine, thereby increasing the cooling water stroke.

6. A multi-stage water-cooled muffler as claimed in claim 2, characterized in that: An air inlet (11) and an air outlet (12) are respectively arranged on the end covers (8) at both ends of the first water tank (4a) and the second water tank (4b), and the air inlet (11) is connected to the inner shell (1) through an air inlet pipe (13), and a sealing cover (14) is arranged at the end of the inner shell (1); one end of the cooling water pipe (5) is mounted on the sealing cover (14) and connected to the first water tank (4a), and the other end is mounted on the end cover (8) away from the sealing cover (14) and connected to the second water tank (4b).

7. A multi-stage water-cooled muffler as claimed in claim 6, characterized in that: A mounting flange (15) is provided on the end cover (8) at one end of the air inlet (11).

8. A multi-stage water-cooled muffler as claimed in claim 2, characterized in that: The two ends of the silencer component (2) are respectively located in the inner shell (1) and the second water tank (4b).

9. A multi-stage water-cooled muffler as claimed in claim 1, characterized in that: The multi-stage water-cooled silencer is made of rust-proof material.

10. A hot water cleaning machine, characterized in that: A multi-stage water-cooled muffler comprising any one of claims 1 to 9.

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