Noise reduction device for fuel gas pressure regulating equipment

Abstract

The utility model relates to a noise reduction device for fuel gas pressure regulating equipment, which comprises a noise reduction box body and a sound insulation ring arranged in the noise reduction box body, a guide cone is sleeved in the sound insulation ring, the left side surface of the guide cone is provided with two placing grooves, and the left side surface of the guide cone is provided with a sound insulation ring. And the interiors of the two placing grooves are movably connected with driving rods through bearings, the side faces, close to the sound insulation ring, of the two driving rods are movably connected with screw rods with one ends extending into the driving rods, and the side faces, close to the sound insulation ring, of the two screw rods are fixedly connected with supporting plates. According to the noise reduction device for the fuel gas pressure regulating equipment, through attachment between a fixing plate and a fixing groove, a guide cone and a sound insulation ring are conveniently connected, the guide cone does not need to be replaced when the sound insulation ring is replaced, the use cost is reduced, meanwhile, through threaded connection between a screw rod and a driving rod, the fixing plate is conveniently driven to move, and the noise reduction effect is good. Workers can conveniently operate the device, and the device is more convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of gas noise reduction, in particular to a noise reduction device for gas pressure regulating equipment. Background Art

[0002] Gas pressure regulating equipment reduces the pressure of high-pressure airflow to low-pressure airflow during gas transmission and distribution. Its function is similar to that of an electric transformer. However, during the pressure reduction process, due to the rapid changes in airflow, it will violently impact the inner wall of the pressure regulating equipment, generating low-frequency noise, which can easily cause discomfort.

[0003] Chinese patent CN218348155U discloses a noise reduction device for gas pressure regulating equipment. The patent discloses a technical solution for improving the sound insulation effect, which solves the problem that the existing gas pressure regulating equipment gas noise reduction methods generally use soundproof rooms or wrap sound insulation materials on the equipment. The deceleration equipment in the soundproof room is high, and the wrapping life of the sound insulation material is short. Moreover, the principle of these methods is to reduce noise by isolating noise, which cannot solve the noise problem from the root.

[0004] When the device is in use, the sound insulation ring and the guide cone can alleviate the impact of the gas, thereby reducing the noise generated by the impact of the airflow. However, the guide cone is fixedly connected to the inside of the sound insulation ring. When the sound insulation ring is replaced, the guide cone also needs to be replaced, which increases the cost of use. Therefore, a noise reduction device for gas pressure regulating equipment is proposed to solve the above problem. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a noise reduction device for gas pressure regulating equipment, which has the advantage of convenient disassembly and assembly, and solves the problem that when the device is in use, the impact of gas can be alleviated by the sound insulation ring and the guide cone, thereby reducing the noise generated by the impact of the airflow. However, the guide cone is fixedly connected to the inside of the sound insulation ring. When the sound insulation ring is replaced, the guide cone also needs to be replaced, which increases the cost of use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a noise reduction device for gas pressure regulating equipment, comprising a silencer box body and a sound insulation ring arranged inside the silencer box body, wherein a guide cone is mounted inside the sound insulation ring.

[0007] Two placement grooves are provided on the left side of the guide cone, and the interiors of the two placement grooves are movably connected to drive rods through bearings. The side of the two drive rods close to the sound insulation ring is movably connected to a screw with one end extending to the interior of the drive rod. The side of the two screws close to the sound insulation ring is fixedly connected to a support plate, and the side of the two support plates away from the screw is fixedly connected to a fixing plate. The inner peripheral wall of the sound insulation ring is provided with two fixing grooves, and the two fixing plates extend to the interiors of the two fixing grooves respectively.

[0008] A support assembly is provided inside the guide cone to limit the support plate.

[0009] A limiting component is provided inside the muffler box body to limit the guide cone.

[0010] Furthermore, the fixing plate and the fixing groove are fitted together, and threaded holes are provided on one side of the two driving rods close to the screw rods. The two screw rods extend into the interior of the two threaded holes respectively and are threadedly connected thereto.

[0011] Furthermore, the support assembly includes two sliders, which are respectively fixedly connected to the right side surfaces of the two support plates. Two sliding grooves are opened inside the guide cone, and the two sliders extend to the inside of the two sliding grooves respectively. The front and back sides of the two sliders are fixedly connected with rubber pads, and the two sliding grooves are respectively located on the right side of the two placement slots.

[0012] Furthermore, the two sliding blocks are respectively slidably connected to the two sliding grooves, and the rubber pad is fitted with the sliding grooves.

[0013] Furthermore, the limiting assembly includes two baffles, which are respectively fixedly connected to the inner top wall and the inner bottom wall of the silencer box body. The left inner wall of the silencer box body is fixedly connected with two support rods, and the right sides of the two support rods are fixedly connected to the limiting plates.

[0014] Furthermore, the guide cone and the sound insulation ring are both fitted with the limit plate, and the sound insulation ring is fitted with the baffle.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The noise reduction device for the gas pressure regulating equipment conveniently connects the guide cone and the sound insulation ring through the fit between the fixing plate and the fixing groove. When the sound insulation ring is replaced, there is no need to replace the guide cone, thereby reducing the cost of use. At the same time, the threaded connection between the screw and the drive rod conveniently drives the fixing plate to move, which is convenient for the staff to operate and is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the middle part;

[0019] Figure 3 It is a top view schematic diagram of the limiting plate in the structure of the utility model.

[0020] In the figure: 1 silencer box body, 2 guide cone, 3 sound insulation ring, 4 baffle, 5 support rod, 6 limit plate, 7 fixing plate, 8 fixing groove, 9 rubber pad, 10 slide groove, 11 slider, 12 screw, 13 drive rod, 14 placement groove, 15 support plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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] See also Figure 1-3 In this embodiment, a noise reduction device for gas pressure regulating equipment includes a silencer box body 1 and a sound insulation ring 3 arranged inside the silencer box body 1, and a guide cone 2 is installed inside the sound insulation ring 3.

[0023] Two placement grooves 14 are provided on the left side of the guide cone 2. The interiors of the two placement grooves 14 are movably connected to drive rods 13 through bearings. The two drive rods 13 are movably connected to a screw 12 with one end extending to the interior of the drive rod 13 on the side close to the sound insulation ring 3. The two screws 12 are fixedly connected to a support plate 15 on the side close to the sound insulation ring 3. The two support plates 15 are fixedly connected to a fixing plate 7 on the side away from the screw 12. The inner peripheral wall of the sound insulation ring 3 is provided with two fixing grooves 8, and the two fixing plates 7 extend to the interiors of the two fixing grooves 8 respectively.

[0024] The fixing plate 7 and the fixing groove 8 fit together, and threaded holes are provided on the side surfaces of the two driving rods 13 close to the screw rods 12 . The two screw rods 12 extend into the inside of the two threaded holes and are threadedly connected thereto.

[0025] Specifically, the guide cone 2 is pushed into the interior of the sound insulation ring 3, and the drive rod 13 is rotated to rotate the drive rod 13. Through the threaded connection between the drive rod 13 and the screw 12, the screw 12 drives the support plate 15 to move, and then the fixing plate 7 enters the interior of the fixing groove 8. Through the fit between the fixing plate 7 and the fixing groove 8, the guide cone 2 and the sound insulation ring 3 are connected.

[0026] In this embodiment, a support assembly is provided inside the guide cone 2, and the support assembly includes two sliders 11, and the two sliders 11 are respectively fixedly connected to the right side surfaces of the two support plates 15. Two slide grooves 10 are opened inside the guide cone 2, and the two sliders 11 extend to the inside of the two slide grooves 10 respectively. The front and back sides of the two sliders 11 are fixedly connected with rubber pads 9, and the two slide grooves 10 are respectively located on the right side of the two placement grooves 14.

[0027] The two sliders 11 are slidably connected to the two slide grooves 10 respectively, and the rubber pad 9 fits the slide grooves 10 .

[0028] Specifically, the support plate 15 is moved through the sliding connection between the slider 11 and the slide groove 10, and then the fixed plate 7 enters the interior of the fixed groove 8. The slider 11 is supported by the fit between the rubber pad 9 and the slide groove 10, thereby improving the stability of the slider 11.

[0029] In this embodiment, a limiting assembly is provided inside the silencer box body 1, and the limiting assembly includes two baffles 4, which are respectively fixedly connected to the inner top wall and the inner bottom wall of the silencer box body 1. Two support rods 5 are fixedly connected to the left inner wall of the silencer box body 1, and the right sides of the two support rods 5 are fixedly connected to the limiting plates 6.

[0030] Among them, the guide cone 2 and the sound insulation ring 3 are both fitted with the limit plate 6, and the sound insulation ring 3 is fitted with the baffle 4.

[0031] Specifically, the device is placed inside the silencer box body 1, and the baffle 4 and the limit plate 6 are both fitted with the guide cone 2 and the sound insulation ring 3 to support them and improve the stability of the guide cone 2 and the sound insulation ring 3.

[0032] The working principle of the above embodiment is:

[0033] The guide cone 2 is pushed into the interior of the sound insulation ring 3, and the drive rod 13 is rotated to rotate the drive rod 13. Through the threaded connection between the drive rod 13 and the screw 12 and the sliding connection between the slider 11 and the slide groove 10, the screw 12 drives the support plate 15 to move, and then the fixed plate 7 enters the interior of the fixed groove 8. Through the fit between the fixed plate 7 and the fixed groove 8, the guide cone 2 and the sound insulation ring 3 are connected. Through the fit between the rubber pad 9 and the slide groove 10, the slider 11 is supported to improve the stability of the slider 11. The device is placed inside the silencer box body 1. The baffle 4 and the limit plate 6 are both fitted with the guide cone 2 and the sound insulation ring 3 to support them and improve the stability of the guide cone 2 and the sound insulation ring 3.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] 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. A noise reduction device for gas pressure regulating equipment, comprising a silencer box body (1) and a sound insulation ring (3) arranged inside the silencer box body (1), characterized in that: A guide cone (2) is sleeved inside the sound insulation ring (3); The left side of the guide cone (2) is provided with two placement grooves (14), the interiors of the two placement grooves (14) are movably connected to a drive rod (13) through a bearing, the side of the two drive rods (13) close to the sound insulation ring (3) are movably connected to a screw (12) with one end extending to the interior of the drive rod (13), the side of the two screw rods (12) close to the sound insulation ring (3) are fixedly connected to a support plate (15), the side of the two support plates (15) away from the screw rod (12) are fixedly connected to a fixing plate (7), the inner peripheral wall of the sound insulation ring (3) is provided with two fixing grooves (8), and the two fixing plates (7) extend to the interiors of the two fixing grooves (8) respectively; A support component is provided inside the guide cone (2), and a limit component is provided inside the muffler box body (1).

2. A noise reduction device for gas pressure regulating equipment according to claim 1, characterized in that: The fixing plate (7) and the fixing groove (8) are fitted together, and threaded holes are provided on the side surfaces of the two driving rods (13) close to the screw rods (12). The two screw rods (12) extend into the interiors of the two threaded holes and are threadedly connected thereto.

3. A noise reduction device for gas pressure regulating equipment according to claim 1, characterized in that: The support assembly includes two sliders (11), the two sliders (11) are fixedly connected to the right side surfaces of the two support plates (15), the guide cone (2) is provided with two slide grooves (10), the two sliders (11) extend into the inside of the two slide grooves (10), the front and back surfaces of the two sliders (11) are fixedly connected with rubber pads (9), and the two slide grooves (10) are respectively located on the right side of the two placement grooves (14).

4. A noise reduction device for gas pressure regulating equipment according to claim 3, characterized in that: The two sliders (11) are respectively slidably connected to the two slide grooves (10), and the rubber pad (9) and the slide groove (10) are in close contact.

5. The noise reduction device for gas pressure regulating equipment according to claim 3, characterized in that: The limiting assembly comprises two baffles (4), the two baffles (4) being fixedly connected to the inner top wall and the inner bottom wall of the muffler box body (1), respectively; the left inner wall of the muffler box body (1) is fixedly connected to two support rods (5), and the right sides of the two support rods (5) are fixedly connected to the limiting plates (6).

6. A noise reduction device for gas pressure regulating equipment according to claim 5, characterized in that: The guide cone (2) and the sound insulation ring (3) are both fitted with the limit plate (6), and the sound insulation ring (3) is also fitted with the baffle (4).

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