Gas inlet nozzle for gas pressure reducing valve

Abstract

The utility model discloses a gas inlet nozzle for a gas pressure reducing valve, which comprises an outer shell, a gas inlet end part and a gas outlet end part which are positioned at two ends of the outer shell, a gas inlet channel is arranged in the gas inlet end part, and a gas outlet channel communicated with the gas inlet channel is arranged in the gas outlet end part; wherein the air inlet channel is provided with a conical wall part and a straight wall part from outside to inside, the straight wall part is provided with a concave buckle groove, the air inlet channel is provided with a pressure reduction inner sleeve internally provided with a buckle, and the pressure reduction inner sleeve is provided with a honeycomb-shaped lining. The pressure reducing inner sleeve is installed in the air inlet channel to disturb flow, so that air inlet pressure is reduced, noise caused by too large working intensity of a pressure reducing valve is avoided, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure reducing valves, and in particular relates to an air inlet nozzle for a gas pressure reducing valve. Background Art

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, relying on the adjustment of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range. At present, the air inlet nozzles of the pressure reducing valve are all simple through-valve nozzles, and the gas inlet pressure is relatively large, so the noise generated by the pressure reduction will become larger, which is not conducive to use in some scenarios.

[0003] Therefore, there is an urgent need for an air inlet nozzle for a gas pressure reducing valve which is easy to install and can relatively reduce the air inlet pressure. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is to provide an air inlet nozzle for a gas pressure reducing valve, by installing a pressure reducing inner sleeve in the air inlet passage to perform turbulence, thereby reducing the air intake pressure, avoiding the pressure reducing valve from working too hard and generating noise, and improving practicality.

[0005] In order to solve the above technical problems, the utility model discloses an air inlet nozzle for a gas pressure reducing valve, comprising:

[0006] The outer shell has an air inlet end and an air outlet end located at both ends, an air inlet channel is arranged in the air inlet end, and an air outlet channel connected to the air inlet channel is arranged in the air outlet end; wherein the air inlet channel has a conical wall portion and a straight wall portion from the outside to the inside, the straight wall portion has an inwardly concave snap groove, the air inlet channel has a decompression inner sleeve with an inner snap, and the decompression inner sleeve is provided with a honeycomb lining.

[0007] According to an embodiment of the utility model, the middle section of the air outlet channel is convex inwardly in arc.

[0008] According to an embodiment of the utility model, the decompression inner sleeve has a sealing shaft diameter exposing the air inlet passage, and a sealing ring is sleeved on the sealing shaft diameter.

[0009] According to an embodiment of the utility model, a flange seat is provided in the middle section of the outer shell.

[0010] Compared with the prior art, the utility model can obtain the following technical effects:

[0011] By installing a pressure reducing inner sleeve in the air intake passage, turbulence is performed, thereby reducing the air intake pressure, avoiding the pressure reducing valve from working too hard and generating noise, thereby improving practicality.

[0012] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 Schematic diagram of an air inlet nozzle for a gas pressure reducing valve according to an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of a decompression inner sleeve according to an embodiment of the utility model.

[0016] Figure ID

[0017] An outer shell 10 , an air inlet end 11 , an air outlet end 12 , an air inlet passage 21 , an air outlet passage 22 , an inner concave buckle groove 30 , a decompression inner sleeve 40 , and a honeycomb inner liner 50 . DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of an air inlet nozzle for a gas pressure reducing valve according to an embodiment of the utility model; Figure 2 It is a schematic diagram of a decompression inner sleeve according to an embodiment of the utility model.

[0020] As shown in the figure, an air inlet nozzle for a gas pressure reducing valve comprises:

[0021] The outer shell 10 has an air inlet end 11 and an air outlet end 12 located at both ends, the air inlet end 11 is provided with an air inlet channel 21, and the air outlet end 12 is provided with an air outlet channel 22 connected to the air inlet channel 11; wherein, the air inlet channel 21 has a conical wall portion and a straight wall portion from the outside to the inside, the straight wall portion has an inner concave snap groove 30, the air inlet channel 21 has a decompression inner sleeve 40 with an inner snap, and the decompression inner sleeve 40 is provided with a honeycomb lining 50.

[0022] In one embodiment of the utility model, the two ends of the outer shell 10 are respectively provided with an inlet end 11 and an outlet end 12, which are in the shape of an interface, one end is installed to the pressure reducing valve, and the other end is installed to the inlet bottle, and the interior is hollow, and is connected through the corresponding inlet channel 11 and the outlet channel 22. The inlet channel 21 is provided with an inner concave buckle groove 30 for clamping the pressure reducing inner sleeve 40, and the two are interference fit, and the pressure reducing inner sleeve 40 is used for air intake turbulence, pre-reducing the intake pressure, thereby reducing the working pressure of the subsequent pressure reducing valve, thereby reducing the noise generated by the pressure reduction. The pressure reducing inner sleeve 40 is provided with a honeycomb lining 50, which has a good turbulence effect and is stable and practical.

[0023] In addition, the decompression inner sleeve 40 has a sealing shaft diameter that exposes the air intake passage 21, which is located at the end for easy assembly. A sealing ring is sleeved on the sealing shaft diameter to facilitate connection with the air intake device and ensure sealing.

[0024] The middle section of the air outlet channel 22 of the utility model is convex inwardly curved, the middle section is contracted, and the two ends are expanded outwardly, so that the air outlet is relatively increased and the pressure is released.

[0025] In addition, a flange seat is provided in the middle section of the outer shell 10 to facilitate installation and fixation.

[0026] In summary, the utility model installs a pressure reducing inner sleeve in the air intake passage to perform turbulence, thereby reducing the air intake pressure, avoiding the pressure reducing valve from working too hard and generating noise, thereby improving practicality.

[0027] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An air inlet nozzle for a gas pressure reducing valve, characterized in that: include: An outer shell, the outer shell having an air inlet end and an air outlet end located at both ends, the air inlet end having an air inlet channel therein, the air outlet end having an air outlet channel connected to the air inlet channel therein; wherein the air inlet channel has a conical wall portion and a straight wall portion from the outside to the inside, the straight wall portion has an inwardly concave snap groove, the air inlet channel has a decompression inner sleeve with an inner snap, and the decompression inner sleeve is provided with a honeycomb lining.

2. The air inlet nozzle for a gas pressure reducing valve according to claim 1, characterized in that: The middle section of the air outlet channel is convex inwardly in arc.

3. The air inlet nozzle for a gas pressure reducing valve according to claim 1, characterized in that: The decompression inner sleeve has a sealing shaft diameter exposing the air inlet passage, and a sealing ring is sleeved on the sealing shaft diameter.

4. The air inlet nozzle for a gas pressure reducing valve according to claim 1, characterized in that: A flange seat is arranged in the middle section of the outer shell.

Images