Double-channel rotary exhaust nozzle

Abstract

The utility model discloses a double-channel rotary exhaust nozzle which comprises a connector body, a main air inlet penetrates through the side wall of the connector body and is fixedly connected with the side wall of the connector body, a rotary bearing is in interference fit with the top of the connector body, a bearing seat is in interference fit with one end of the rotary bearing, and an air outlet sleeve is fixedly connected with the top of the bearing seat. According to the exhaust nozzle, the rotary bearing, the bearing seat, the air outlet sleeve and the exhaust nozzle bodies are arranged, air introduced into the main air inlet can enter the exhaust nozzle bodies through the dispersed air paths, and when the air is sprayed out through the two sets of exhaust nozzle bodies facing different directions, the air has the tendency of driving the air outlet sleeve to rotate around the air outlet sleeve; the bearing seat and the exhaust nozzle body above the bearing seat can be driven to rotate in cooperation with the rotary bearing, exhaust can be more uniform, exhaust flow can be dispersed and mixed, and therefore the overall noise level is reduced, meanwhile, energy loss in the exhaust process is reduced, and the overall efficiency of a system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust nozzle technical field, in particular to a kind of double-path rotary exhaust nozzle. BACKGROUND

[0002] Exhaust nozzle is installed at the end of engine, turbine or other equipment exhaust system, for discharging the gas in various pipeline, tank and other equipment, its main function is to adjust the direction, velocity and pressure of exhaust flow, to optimize the performance of equipment and reduce noise. The design and working principle of exhaust nozzle can be very different according to the application.

[0003] The existing traditional exhaust nozzle design has some shortcomings: some exhaust nozzles may not provide uniform flow field, resulting in unstable performance of exhaust system; the design of some exhaust nozzles may not be the most effective, resulting in energy loss during exhaust process, reducing the efficiency of the whole system; and the exhaust nozzle may not be effective in reducing exhaust noise, especially in certain frequency range. SUMMARY

[0004] The utility model discloses a kind of double-path rotary exhaust nozzles to solve the shortcomings in prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of double-path rotary exhaust nozzle, including connector body, the side wall of the connector body is fixedly connected with main air inlet and penetrates, the top of the connector body is interferentially matched with rotary bearing, one end of the rotary bearing is interferentially matched with bearing seat, the top of the bearing seat is fixedly connected with gas outlet sleeve, and the outer surface of the gas outlet sleeve is fixedly connected with connecting body on both sides, the top of two connecting bodies is fixedly connected with exhaust nozzle body with symmetry.

[0006] Further, the inside of the gas outlet sleeve is fixedly connected with dispersion gas path with symmetry, one end of two dispersion gas paths is fixedly communicated with the end of main air inlet, and the other end of two dispersion gas paths is fixedly communicated with the end of corresponding connecting body respectively.

[0007] Further, the sealing ring is in abutment between the gas outlet sleeve and bearing seat, and the sealing ring is located in the top side wall of bearing seat.

[0008] Further, the side wall of the gas outlet sleeve is inserted with pin with symmetry and penetrates, and one end of two pins is inserted into the top side wall of bearing seat.

[0009] Further, the top of the gas outlet sleeve is fixedly connected with mounting hole with symmetry, and the hole diameter of the mounting hole is matched with pin.

[0010] Further, the bottom of the joint body is fixedly connected with a screw rod, and the screw rod is fixedly connected in the outer surface of the main air inlet.

[0011] Further, the two groups of exhaust nozzle bodies connected by the two connecting bodies are different in direction.

[0012] The utility model discloses beneficial effects:

[0013] The utility model discloses when using, through setting up rotating bearing, bearing seat, gas outlet sleeve and exhaust nozzle body, the gas of the main air inlet will enter the inside of exhaust nozzle body through dispersion gas path, then exports outward, and when the gas is respectively sprayed through two groups of exhaust nozzle bodies of different directions, has the tendency of driving exhaust nozzle body to autorotate around itself, cooperates the existence of rotating bearing, can drive the rotation of bearing seat and upper exhaust nozzle body, through the mode of rotating fluid, can make exhaust more uniform, reduces the vortex and unstable factor in flow field, thereby improves the performance of exhaust system, and the mode of rotary exhaust helps dispersion and mixing exhaust flow, this can reduce the noise of specific frequency, thereby reduces the overall noise level, reduces the energy loss in the exhaust process simultaneously, improves the overall efficiency of system. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view overall structure section view of the utility model;

[0015] Figure 2 It is the perspective drawing of the utility model;

[0016] Figure 3 It is the plan view of the utility model.

[0017] LEGEND:

[0018] 1, joint body, 2, rotating bearing, 3, bearing seat, 4, sealing ring, 5, gas outlet sleeve, 6, main air inlet, 7, connecting body, 8, dispersion gas path, 9, exhaust nozzle body, 10, screw rod, 11, mounting hole, 12, pin. DETAILED DESCRIPTION

[0019] As Figure 1 - Figure 3As shown, it relates to a double-channel rotary exhaust nozzle, comprising a joint body 1, the side wall of the joint body 1 is fixedly connected with a main air inlet 6, the top of the joint body 1 is interference fitted with a rotary bearing 2, one end of the rotary bearing 2 is interference fitted with a bearing seat 3, wherein the interference fit means that the diameter of the shaft is slightly larger than the diameter of the bearing inner ring, the bearing is pressed on the shaft by pressure, so that the bearing inner ring is tightly fitted on the shaft to form a whole. In this way, the outer ring of the bearing and the shaft rotate with low friction through the rolling of the balls or rollers, and the most common connection method is to press the bearing on the shaft by a press machine to ensure that the bearing inner ring is tightly fitted on the shaft. During the pressing process, a soft metal material (such as copper or soft steel) is usually placed on the end face of the bearing inner ring to protect the bearing inner ring;

[0020] The top of the bearing seat 3 is fixedly connected with an exhaust sleeve 5, and the outer surface of the exhaust sleeve 5 is fixedly connected with a connecting body 7 on both sides. The top of the two connecting bodies 7 is symmetrically fixedly connected with an exhaust nozzle body 9, and correspondingly, the two groups of exhaust nozzle bodies 9 connected by the two connecting bodies 7 are different in direction.

[0021] When the gas is sprayed through the two groups of exhaust nozzle bodies 9 with different directions respectively, it has the tendency to drive the exhaust sleeve 5 to rotate around itself. With the existence of the rotary bearing 2, it can drive the rotation of the bearing seat 3 and the exhaust nozzle body 9 above. Through the rotary fluid mode, it can make the exhaust more uniform, reduce the vortex and unstable factors in the flow field, and the rotary exhaust mode is helpful for dispersing and mixing the exhaust flow, which can reduce the noise of a certain frequency.

[0022] The inside of the exhaust sleeve 5 is fixedly connected with a dispersion gas path 8, one end of the two dispersion gas paths 8 is fixedly communicated with the end of the main air inlet 6, and the other end of the two dispersion gas paths 8 is respectively fixedly communicated with the end of the corresponding connecting body 7. After the main air inlet 6 is communicated with the external gas source, the gas will enter the dispersion gas path 8 through the main air inlet 6, and then enter the inside of the connecting body 7 through the dispersion gas path 8, and finally flow into the exhaust nozzle body 9, so as to be discharged outward.

[0023] The sealing ring 4 is in abutment between the exhaust sleeve 5 and the bearing seat 3, and the sealing ring 4 is located in the top side wall of the bearing seat 3. Among them, the main function of the sealing ring 4 between the bearing seat 3 and the exhaust sleeve 5 is to prevent gas leakage and protect the bearing from external pollution. Specifically, the sealing ring 4 can effectively seal the gap between the bearing seat 3 and the exhaust sleeve 5, prevent gas from leaking along the piston rod direction, ensure the sealing of the system, and at the same time, the sealing ring can prevent dust, moisture, acidic gas and other external factors from entering the bearing, thereby protecting the bearing from external environment damage and prolonging its service life.

[0024] The side wall of the air outlet sleeve 5 is symmetrically inserted with the pin 12, and the two ends of the pin 12 are inserted into the top side wall of the bearing seat 3. Correspondingly, the top of the air outlet sleeve 5 is symmetrically provided with the mounting hole 11, and the hole diameter of the mounting hole 11 matches the pin 12.

[0025] The pin is usually inserted into the connected object by hammering or rotating. When the head is inserted into the object, the angle between the head and the shaft will form an included angle due to the difference in shape between the head and the shaft, which is one of the important guarantees for the firm connection of the pin. The tail will be bent at a certain angle after the head is inserted into the object, which plays an anchoring role with the connected object.

[0026] In this application, the pin 12 is punched into the side wall of the air outlet sleeve 5 and the top of the bearing seat 3 by a hand drill and a press machine, and the end face of the pin 12 is flush with the end face of the air outlet sleeve 5, which ensures the firmness of the connection between the air outlet sleeve 5 and the bearing seat 3.

[0027] The bottom of the joint body 1 is fixedly connected with the screw rod 10, and the screw rod 10 is fixedly connected to the outer surface of the main air inlet 6. By using the threads on the outer surface of the screw rod 10, the screw rod 10 can be screwed with the external gas source connector, so as to fix the entire exhaust rotating nozzle with the external gas source, realizing assembly.

[0028] In use: first, the joint body 1 and the entire device can be installed on the external gas source connector through the screw rod 10, and the gas entering the main air inlet 6 will enter the connecting body 7 through the dispersion gas path 8, and then enter the inside of the exhaust nozzle body 9, and then be discharged outward. When the gas is discharged through the two groups of exhaust nozzle bodies 9 facing in different directions, it has the tendency to drive the air outlet sleeve 5 to rotate around itself. With the existence of the rotating bearing 2, the bearing seat 3 and the upper exhaust nozzle body 9 can be driven to rotate. By rotating the fluid, the exhaust can be more uniform, reducing the vortex and unstable factors in the flow field, thereby improving the performance of the exhaust system. The rotating exhaust method helps to disperse and mix the exhaust flow, which can reduce the noise at a certain frequency, thereby reducing the overall noise level, while reducing the energy loss during the exhaust process and improving the overall efficiency of the system.

[0029] The installation process of the whole device is as follows: firstly, the rotating bearing 2 is installed into the joint body 1 by using a press, then the bearing seat 3 is installed in the same way, and then the sealing ring 4 is installed, the upper surface of the sealing ring 4 is flush with the bearing seat 3, the two connecting bodies are pressed into the gas outlet sleeve 5 by using a press (attention to the direction of the gas outlet), the gas outlet sleeve 5 is aligned with the bearing seat 3, the pin 12 is punched into the side wall of the gas outlet sleeve 5 and the top of the bearing seat 3 by using a hand gun drill and a press, and the end surface of the pin 12 is flush with the end surface of the gas outlet sleeve 5, so as to realize the connection between the gas outlet sleeve 5 and the bearing seat 3, the four nozzles are screwed into the connecting body 7, then the whole device can be tested for the run-out of the rotary body, the rotary nozzle should be connected to the gas source, the pressure is adjusted to 4 Bar, 5 Bar, 6 Bar, 7 Bar and 7 Bar respectively, the rotating speed of the nozzle is tested and recorded, and the assembly and testing process of the whole exhaust rotary nozzle are realized.

[0030] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields by using the content of the present application specification and drawings, are also included in the patent protection range of the present application.

Claims

1. A dual-pass rotary exhaust nozzle, comprising a connector body (1), characterized in that: The main air inlet (6) is fixedly connected through the side wall of the connector body (1). The top of the connector body (1) is fitted with a rotary bearing (2). One end of the rotary bearing (2) is fitted with a bearing seat (3). The top of the bearing seat (3) is fixedly connected with an air outlet sleeve (5). Both sides of the outer surface of the air outlet sleeve (5) are fixedly connected with connecting bodies (7). The tops of the two connecting bodies (7) are symmetrically fixedly connected with exhaust nozzle bodies (9).

2. The dual-pass rotary exhaust nozzle according to claim 1, characterized in that: The air outlet sleeve (5) is symmetrically and fixedly connected with a dispersion air passage (8). One end of each dispersion air passage (8) is fixedly connected to the end of the main air inlet (6), and the other end of each dispersion air passage (8) is fixedly connected to the end of the corresponding connector (7).

3. The dual-pass rotary exhaust nozzle according to claim 1, characterized in that: The vent sleeve (5) and the bearing housing (3) are in contact with a sealing ring (4), and the sealing ring (4) is located inside the top side wall of the bearing housing (3).

4. A dual-pass rotary exhaust nozzle according to claim 1, characterized in that: The sidewall of the air outlet sleeve (5) is symmetrically connected with pins (12), and one end of each of the two pins (12) is inserted into the top sidewall of the bearing seat (3).

5. A dual-pass rotary exhaust nozzle according to claim 4, characterized in that: The top of the air outlet sleeve (5) is symmetrically provided with mounting holes (11), and the diameter of the mounting holes (11) matches that of the pins (12).

6. A dual-pass rotary exhaust nozzle according to claim 1, characterized in that: The bottom of the connector body (1) is fixedly connected to a screw (10), and the screw (10) is sleeved and fixedly connected to the outer surface of the main air inlet (6).

7. A dual-pass rotary exhaust nozzle according to claim 1, characterized in that: The two sets of exhaust nozzle bodies (9) connected to each of the two connecting bodies (7) are oriented differently.

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