Automobile exhaust heating device with silencing mechanism

Abstract

The utility model discloses an automobile exhaust heating device with a silencing mechanism, which comprises a barrel, a first end of the barrel is provided with an air inlet, a second end of the barrel is provided with an exhaust port, and the inside of the barrel is divided into a silencing cavity communicated with the air inlet and a heating cavity communicated with the exhaust port by a partition plate along the length direction; a silencing pipe dividing the silencing cavity into an inner silencing cavity and an outer silencing cavity in the radial direction is arranged in the silencing cavity, and a plurality of silencing holes communicating the inner silencing cavity with the outer silencing cavity are evenly formed in the side wall of the silencing pipe; the inner silencing cavity communicates with the air inlet, and a plurality of vent holes communicating with the outer silencing cavity and the heating cavity are evenly formed in the partition plate. The heating cavity is internally provided with a snakelike heat exchange pipe arranged along the length direction of the heating cavity and an inner flow guide cone, wherein the large-diameter end of the inner flow guide cone is fixedly connected with the second end of the barrel, the small-diameter end of the inner flow guide cone is fixedly connected with the partition plate, and the heat exchange pipe sleeves the inner flow guide cone. According to the utility model, the noise reduction effect can be ensured, and the heating efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust treatment, in particular to an automobile exhaust heating device with a muffler mechanism. Background Art

[0002] The automobile exhaust water heating system has an exhaust heater, one end of which is connected to the exhaust system and the other end is the exhaust end. The exhaust heater has an exhaust channel and a water channel surrounding the exhaust channel. The heat from the engine exhaust system is used to heat the water in the water-heating heater. The water-heating heater is widely used in automobile heating systems, mainly for trucks and cars with smaller heating capacity in non-severe cold areas.

[0003] When the current exhaust heater is in use, a muffler needs to be provided in front of it to reduce noise so as not to affect the surrounding environment and the attention of the driver and passers-by. However, the existing exhaust heater with a muffler still has the problems of poor noise reduction effect and low heating efficiency when in use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automobile exhaust heating device with a muffler mechanism to solve the problem raised in the background technology.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0006] A vehicle exhaust heating device with a silencer mechanism comprises a cylinder, an air inlet is arranged at the first end of the cylinder, an exhaust port arranged opposite to the air inlet is arranged at the second end of the cylinder, wherein the interior of the cylinder is divided into a silencer chamber connected to the air inlet and a heating chamber connected to the exhaust port by a partition plate arranged along the length direction; a silencer pipe is arranged coaxially with the silencer chamber and radially divides the silencer chamber into an inner silencer chamber and an outer silencer chamber, and a plurality of connecting ports of the inner silencer chamber and the outer silencer chamber are evenly opened on the side wall of the silencer pipe. The inner silencer chamber is connected with the air inlet, and a number of air vents connecting the outer silencer chamber and the heating chamber are evenly arranged on the partition; a serpentine heat exchange tube arranged along the length direction of the heating chamber is arranged inside the heating chamber, and a water inlet passing through the cylinder is arranged at one end of the serpentine heat exchange tube close to the exhaust port, and a water outlet passing through the cylinder is arranged at one end of the serpentine heat exchange tube close to the partition; an inner guide cone is also arranged inside the heating chamber, the large-diameter end of which is fixedly connected to the second end of the cylinder, the small-diameter end of which is fixedly connected to the partition and the heat exchange tube sleeve is arranged inside.

[0007] Preferably, a sound-absorbing layer arranged on a partition is provided in the inner sound-absorbing cavity, and a plurality of sound-absorbing grooves are evenly provided on the sound-absorbing layer.

[0008] Preferably, the sound-absorbing layer is a sound-absorbing sponge.

[0009] Preferably, the outer muffler cavity is provided with glass fibers arranged on the inner wall of the cylinder along the circumference of the inner wall of the cylinder.

[0010] Preferably, the heating chamber is provided with an outer guide cone which is arranged on the inner wall of the cylinder along the circumference of the inner wall of the cylinder and has a large-diameter end fixedly connected to the partition and a small-diameter end fixedly connected to the second end of the cylinder. An exhaust gas channel connected to the vent and the exhaust port is formed between the outer guide cone and the inner guide cone.

[0011] Preferably, the axes of the cylinder, the air inlet, the exhaust port, the muffler, the heat exchange tube, the inner guide cone and the outer guide cone are in a straight line.

[0012] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0013] The utility model can ensure the noise reduction effect and achieve silencing by providing the silencer pipe, the silencer layer and the glass fiber; the heat exchange efficiency can be improved by providing the inner guide cone and the outer guide cone cylinder, thereby facilitating the improvement of the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Among them: 1. Cylinder, 2. Partition, 21. Vent, 3. Silencer, 31. Silencer hole, 4. Silencer layer, 41. Silencer groove, 5. Glass fiber, 6. Heat exchange tube, 61. Water inlet, 62. Water outlet, 7. External guide cone, 8. Internal guide cone, 9. Air inlet, 10. Exhaust port. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] An automobile exhaust heating device with a muffler mechanism, combined Figure 1 As shown, it includes a cylinder 1, and an air inlet 9 is provided at the first end of the cylinder 1, and the air inlet 9 is used to connect to the exhaust system of the car; an exhaust port 10 is provided at the second end of the cylinder 1, and the exhaust port 10 is arranged opposite to the air inlet 9, and the exhaust port 10 is used to discharge the exhaust gas after noise reduction and heat exchange. A partition 2 is provided inside the cylinder 1, and the partition 2 divides the inside of the cylinder 1 into a silencer chamber and a heating chamber along the length direction, wherein the silencer chamber is connected to the air inlet 9; and the heating chamber is connected to the exhaust port 10.

[0018] A silencer pipe 3 is arranged inside the silencer chamber, and the silencer pipe 3 is arranged coaxially with the silencer chamber and radially divides the silencer chamber into an inner silencer chamber and an outer silencer chamber. The inner silencer chamber is connected to the air inlet 9, and a silencer layer 4 is arranged in the inner silencer chamber, and the silencer layer 4 is arranged on the partition 2, and a plurality of silencer grooves 41 are evenly arranged on the silencer layer 4. Specifically, the silencer layer 4 is a silencer sponge; a plurality of silencer holes 31 are evenly arranged on the side wall of the silencer pipe 3, and the silencer holes 31 connect the inner silencer chamber and the outer silencer chamber; a glass fiber 5 is arranged in the outer silencer chamber, and the glass fiber 5 is arranged on the inner wall of the cylinder 1 along the circumferential direction of the inner wall of the cylinder 1.

[0019] When the exhaust gas discharged from the exhaust system enters the silencer cavity through the air inlet 9, it first enters the inner silencer cavity, where the sound waves are reflected and interfered by the silencer layer 4 and the silencer pipe 3, thereby eliminating the noise; then it enters the outer silencer cavity, where the noise is further eliminated by the action of the glass fiber 5, thereby greatly improving the noise reduction effect.

[0020] A plurality of vent holes 21 are evenly formed on the partition plate 2, and the vent holes 21 connect the outer silencer chamber and the heating chamber, so that the exhaust gas after noise reduction enters the heating chamber.

[0021] The heating chamber is provided with a serpentine heat exchange tube 6, which is arranged along the length of the heating chamber. A water inlet 61 is provided at one end of the heat exchange tube 6 close to the exhaust port 10, and a water outlet 62 is provided at one end of the serpentine heat exchange tube 6 close to the partition 2. The water outlet 62 and the water inlet 61 are both passed through the cylinder 1 and connected to the water-heating heater of the automobile, so that the water is heated by heat exchange between the exhaust gas after noise reduction and the water of the water-heating heater, and the exhaust gas and the water form convection, which can improve the heat exchange effect.

[0022] The interior of the heating chamber is also provided with an inner flow guide cone 8 and an outer flow guide cone 7, wherein the large diameter end of the inner flow guide cone 8 is fixedly connected to the second end of the cylinder 1, the small diameter end of the inner flow guide cone 8 is fixedly connected to the partition 2, and the inner flow guide cone 8 is sleeved by the heat exchange tube 6; the outer flow guide cone 7 is arranged on the inner wall of the cylinder 1 along the inner wall of the cylinder 1, the large diameter end of the outer flow guide cone 7 is fixedly connected to the partition 2, and the small diameter end of the outer flow guide cone 7 is fixedly connected to the second end of the cylinder 1. An exhaust gas channel is formed between the outer flow guide cone 7 and the inner flow guide cone 8, and the exhaust gas channel is connected to the vent 21 and the exhaust port 10, and the exhaust port 10 is annular. When the exhaust gas after noise reduction enters the exhaust gas channel through the vent 21, it will gradually wrap the heat exchange tube 6 in the process of flowing to the exhaust port 10, thereby improving the heat exchange efficiency, which is conducive to improving the heating efficiency of water.

[0023] In order to ensure uniformity of noise reduction and heat exchange, the axes of the cylinder 1, the air inlet 9, the exhaust port 10, the silencer pipe 3, the heat exchange pipe 6, the inner guide cone 8 and the outer guide cone 7 are in a straight line.

[0024] When the utility model is in use, the noise reduction effect can be ensured and the sound elimination can be achieved through the provided silencer pipe 3, the silencer layer 4 and the glass fiber 5; the heat exchange efficiency can be improved through the provided inner guide cone 8 and the outer guide cone 7, thereby facilitating the improvement of the heating efficiency.

Claims

1. An automobile exhaust heating device with a muffler mechanism, comprising a cylinder (1), a first end of the cylinder (1) being provided with an air inlet (9), a second end of the cylinder (1) being provided with an exhaust port (10) arranged opposite to the air inlet (9), characterized in that: The interior of the cylinder (1) is divided into a silencer chamber connected to an air inlet (9) and a heating chamber connected to an air outlet (10) by a partition (2) along the length direction; a silencer pipe (3) is arranged coaxially with the silencer chamber and divides the silencer chamber into an inner silencer chamber and an outer silencer chamber along the radial direction; a plurality of silencer holes (31) connecting the inner silencer chamber and the outer silencer chamber are evenly arranged on the side wall of the silencer pipe (3); the inner silencer chamber is connected to the air inlet (9), and a plurality of silencer holes (31) connecting the outer silencer chamber and the heating chamber are evenly arranged on the partition (2). The heating chamber has an air vent (21); a serpentine heat exchange tube (6) arranged along the length direction of the heating chamber is arranged inside the heating chamber; one end of the serpentine heat exchange tube (6) close to the exhaust port (10) is provided with a water inlet (61) passing through the cylinder (1); one end of the serpentine heat exchange tube (6) close to the partition (2) is provided with a water outlet (62) passing through the cylinder (1); the heating chamber also has an inner guide cone (8) which is fixedly connected to the second end of the cylinder (1) at its large diameter end and fixedly connected to the partition (2) at its small diameter end and is sleeved by the heat exchange tube (6).

2. The automobile exhaust heating device with a muffler mechanism according to claim 1, characterized in that: The inner silencing cavity is provided with a silencing layer (4) arranged on the partition (2), and a plurality of silencing grooves (41) are evenly arranged on the silencing layer (4).

3. The automobile exhaust heating device with a muffler mechanism according to claim 2, characterized in that: The sound-absorbing layer (4) is a sound-absorbing sponge.

4. The automobile exhaust heating device with a muffler mechanism according to claim 1, characterized in that: The outer muffler cavity is provided with glass fibers (5) which are arranged on the inner wall of the cylinder (1) along the circumferential direction of the inner wall of the cylinder (1).

5. The automobile exhaust heating device with a muffler mechanism according to claim 1, characterized in that: The heating chamber is provided with an outer flow guide cone (7) which is arranged on the inner wall of the cylinder (1) along the inner wall circumferentially of the cylinder (1) and has a large-diameter end fixedly connected to the partition (2) and a small-diameter end fixedly connected to the second end of the cylinder (1); an exhaust gas channel which is connected to the vent hole (21) and the exhaust port (10) is formed between the outer flow guide cone (7) and the inner flow guide cone (8).

6. The automobile exhaust heating device with a muffler mechanism according to claim 5, characterized in that: The axes of the cylinder (1), the air inlet (9), the air outlet (10), the silencer (3), the heat exchange tube (6), the inner guide cone (8) and the outer guide cone (7) are on a straight line.

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