Separating valve with noise reduction function

Abstract

The utility model relates to the technical field of separating valves, in particular to a separating valve with a noise reduction function, which comprises a separating valve main body, a nitrogen discharge port and an air inlet pipe are respectively arranged at the side ends of the separating valve main body, two fixing rings are fixedly connected in the air inlet pipe, and buffering sleeves for guiding, buffering and noise reduction are fixedly connected onto the inner walls of the fixing rings. The inner wall of the buffer sleeve is fixedly connected with a gas guide protrusion, the side end of the buffer sleeve is fixedly connected with a fixing plate, the middle of the fixing plate is fixedly connected with a fixing piece, the top end of the fixing piece is fixedly connected with a buffer piece used for reducing noise in the gas flowing direction, and the inner wall of the gas inlet pipe is fixedly connected with a plurality of buffer guide pieces. The buffer guide part is located between the two fixing rings, the buffer guide part is annularly arranged with the buffer sleeve as the center, and the buffer guide part is composed of a guide air inlet, a stop block, a flow channel, an exhaust port and a stop groove.

Description

Technical Field

[0001] This utility model relates to the field of separation valve technology, specifically a separation valve with noise reduction function. Background Technology

[0002] Increasing oxygen supply can increase the oxygen content in the blood and improve brain oxygenation, thereby promoting cell activity and quickly alleviating symptoms. Increasing oxygen content requires the use of an oxygen concentrator. When working, the oxygen concentrator compresses air and sends it through a separator valve into an adsorption tower containing adsorbent. However, when compressed air enters the separator valve, the high-pressure gas impacts the inner wall of the valve, generating significant noise; furthermore, the compressed air pressure drops rapidly after reaching the separator valve, leading to abnormal noises. Summary of the Invention

[0003] The purpose of this invention is to provide a separation valve with noise reduction function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a separation valve with noise reduction function, comprising a separation valve body, wherein a nitrogen discharge port and an air inlet pipe are respectively provided on the side end of the separation valve body, two fixed rings are fixedly connected inside the air inlet pipe, a buffer sleeve for guiding, buffering and silencing is fixedly connected to the inner wall of the fixed ring, a gas guiding protrusion is fixedly connected to the inner wall of the buffer sleeve, a fixed plate is fixedly connected to the side end of the buffer sleeve, a fixing member is fixedly connected to the middle of the fixed plate, a buffer member for guiding gas flow direction and silencing is fixedly connected to the top of the fixing member, and multiple buffer guide members are fixedly connected to the inner wall of the air inlet pipe, the buffer guide members are located in the middle of the two fixed rings, the buffer guide members are arranged in a ring around the buffer sleeve, and the buffer guide members are composed of a guide air inlet, a blocking block, a flow channel, an exhaust port and a blocking groove.

[0005] Preferably, the buffer sleeve has a trumpet-shaped structure, and a buffer cavity is formed between the buffer sleeve and the inner wall of the air inlet pipe. The middle of the fixing ring is provided with multiple air vents, and the two ends of the air vents pass through the fixing ring.

[0006] Preferably, the buffer element is a conical structure, the axis of the buffer element and the axis of the buffer sleeve are on the same straight line, and the buffer element has multiple buffer holes in the middle, with both ends of the buffer holes penetrating through the buffer element.

[0007] Preferably, the air guide protrusion has an annular structure, the inner wall of the air guide protrusion is a vertical surface, and the inner diameter of the air guide protrusion is larger than the opening diameter of the buffer sleeve.

[0008] Preferably, the guide air inlet has a trumpet-shaped structure, the blocking groove has an arc-shaped structure, the blocking block is located in the middle of the blocking groove, the blocking block and the blocking groove form an arc-shaped channel, and a flow channel is formed between the guide air inlet, the blocking block and the exhaust port.

[0009] Preferably, the outer wall of the buffer sleeve is provided with multiple air guide grooves, which are formed by etching to form micro grooves, and the exhaust port is tilted and aligned with the outer wall of the buffer sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: After the compressed air reaches the intake pipe, the compressed gas can be slowly depressurized multiple times through the cooperation of the buffer sleeve, buffer component and buffer guide component, so as to avoid the pressure of the compressed gas dropping rapidly after entering the separation valve and reduce the generation of noise; the air guide groove and honeycomb buffer hole on the outer wall of the buffer sleeve can absorb noise. The buffer sleeve is located in the middle of the intake pipe. The noise generated after the compressed air collides with the buffer sleeve will be blocked by the flow of compressed air, thereby blocking the noise and preventing the noise from being transmitted to the outside. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal connection of the air inlet pipe of the separator valve.

[0012] Figure 2 This is a schematic diagram showing the connection between the buffer sleeve and the retaining ring.

[0013] In the diagram: 1 Separation valve body, 2 Nitrogen vent, 3 Air inlet pipe, 4 Buffer sleeve, 5 Buffer component, 6 Buffer hole, 7 Fixing component, 8 Fixing plate, 9 Buffer guide component, 91 Guide air inlet, 92 Blocking block, 93 Flow channel, 94 Exhaust port, 95 Blocking groove, 10 Air guide protrusion, 11 Fixing ring, 12 Vent. Detailed Implementation

[0014] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] Please see Figure 1-2This utility model provides a technical solution: a separation valve with noise reduction function, including a separation valve body 1, with a nitrogen discharge port 2 and an air inlet pipe 3 respectively provided on the side end of the separation valve body 1. Two fixing rings 11 are fixedly connected inside the air inlet pipe 3. A buffer sleeve 4 for guiding, buffering and silencing is fixedly connected to the inner wall of the fixing ring 11. A gas guiding protrusion 10 is fixedly connected to the inner wall of the buffer sleeve 4. A fixing plate 8 is fixedly connected to the side end of the buffer sleeve 4. A fixing member 7 is fixedly connected to the middle of the fixing plate 8. A buffer member 5 for guiding the gas flow direction and silencing is fixedly connected to the top of the fixing member 7. The inner wall of the air inlet pipe 3 is... Multiple buffer guides 9 are fixedly connected. The buffer guides 9 are located in the middle of the two fixed rings 11. The buffer guides 9 are arranged in a ring around the buffer sleeve 4. The buffer guides 9 are composed of a guide air inlet 91, a blocking block 92, a flow channel 93, an exhaust port 94, and a blocking groove 95. The compressed air of the oxygen generator enters the separation valve body 1 through the air inlet pipe 3. The buffer sleeve 4 and the buffer 5 guide and reduce the pressure of the compressed air. The buffer sleeve 4 and the buffer 5 are both located in the middle part of the air inlet pipe 3. The noise generated after the compressed air collides with the buffer sleeve 4 will be blocked by the flow of compressed air, thereby blocking the noise.

[0016] The buffer sleeve 4 has a trumpet-shaped structure. A buffer cavity is formed between the buffer sleeve 4 and the inner wall of the air inlet pipe 3. A portion of the compressed air is guided by the buffer sleeve 4 to move into the buffer cavity. The buffer cavity reduces the pressure of the compressed air to prevent air from leaking. The middle of the fixed ring 11 is provided with multiple air vents 12. Both ends of the air vents 12 pass through the fixed ring 11. The air vents 12 allow the depressurized air to flow through the fixed ring 11.

[0017] The buffer 5 has a conical structure. The axis of the buffer 5 and the axis of the buffer sleeve 4 are on the same straight line. The buffer 5 has multiple buffer holes 6 in the middle. The buffer holes 6 pass through the buffer 5 at both ends. The buffer holes make the buffer 5 form a honeycomb structure, thereby eliminating the noise generated by the impact of compressed air on the buffer 5 and guiding and diverting a part of the compressed air.

[0018] The air guide protrusion 10 has an annular structure and a vertical inner wall. The inner diameter of the air guide protrusion is larger than the opening diameter of the buffer sleeve 4. The air guide protrusion 10 can guide the compressed air passing between the buffer 5 and the buffer sleeve 4, so that the compressed air in this part is aligned with the buffer sleeve 4, and the compressed air is prevented from tilting and hitting the inner wall of the air intake pipe.

[0019] The guide air inlet 91 has a trumpet-shaped structure, the blocking groove 95 has an arc-shaped structure, and the blocking block 92 is located in the middle of the blocking groove 95. The blocking block 92 and the blocking groove 95 form an arc-shaped channel. A flow channel 93 is formed between the guide air inlet 91, the blocking block 92 and the exhaust port 94. The flow channel 93 is unobstructed, and the gas can flow smoothly. The buffer guide 9 guides the air, so that a part of the compressed air passing through the front buffer sleeve 4 is guided to impact the side wall of the rear buffer sleeve. If the gas flows back after the impact, the backflowing gas will impact the blocking groove 95, preventing the backflowing gas from disturbing the normal flow of compressed gas and avoiding abnormal noise.

[0020] Multiple air guide grooves are provided on the outer wall of the buffer sleeve 4. The air guide grooves are formed by etching to form micro grooves. The exhaust port 94 is tilted and aligned with the outer wall of the buffer sleeve 4. The air guide grooves can guide the gas and eliminate the abnormal noise generated by the compressed gas hitting the outer wall of the buffer sleeve 4.

[0021] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A separation valve with noise reduction function, comprising a separation valve body (1), characterized in that: The side end of the separation valve body (1) is provided with a nitrogen discharge port (2) and an air inlet pipe (3). Two fixed rings (11) are fixedly connected inside the air inlet pipe (3). A buffer sleeve (4) for guiding, buffering and noise reduction is fixedly connected to the inner wall of the fixed ring (11). A gas guiding protrusion (10) is fixedly connected to the inner wall of the buffer sleeve (4). The side end of the buffer sleeve (4) is fixedly connected to a fixing plate (8), the middle of the fixing plate (8) is fixedly connected to a fixing member (7), and the top end of the fixing member (7) is fixedly connected to a buffer member (5) for gas flow direction and noise reduction. Multiple buffer guides (9) are fixedly connected to the inner wall of the air intake pipe (3). The buffer guides (9) are located in the middle of two fixed rings (11). The buffer guides (9) are arranged in a ring around the buffer sleeve (4). The buffer guides (9) consist of a guide air intake (91), a blocking block (92), a flow channel (93), an exhaust port (94), and a blocking groove (95).

2. A separation valve with noise reduction function according to claim 1, characterized in that: The buffer sleeve (4) has a trumpet-shaped structure. A buffer cavity is formed between the buffer sleeve (4) and the inner wall of the air inlet pipe (3). The middle of the fixing ring (11) is provided with multiple air vents (12), and the two ends of the air vents (12) pass through the fixing ring (11).

3. A separation valve with noise reduction function according to claim 1, characterized in that: The buffer (5) is a conical structure. The axis of the buffer (5) and the axis of the buffer sleeve (4) are on the same straight line. The buffer (5) has multiple buffer holes (6) in the middle. The buffer holes (6) pass through the buffer (5) at both ends.

4. A separation valve with noise reduction function according to claim 1, characterized in that: The air guide protrusion (10) has an annular structure, the inner wall of the air guide protrusion (10) is a vertical surface, and the inner diameter of the air guide protrusion is larger than the opening diameter of the buffer sleeve (4).

5. A separation valve with noise reduction function according to claim 1, characterized in that: The guide air inlet (91) has a trumpet-shaped structure, the blocking groove (95) has an arc-shaped structure, the blocking block (92) is located in the middle of the blocking groove (95), the blocking block (92) and the blocking groove (95) form an arc-shaped channel, and a flow channel (93) is formed between the guide air inlet (91), the blocking block (92) and the exhaust port (94).

6. A separation valve with noise reduction function according to claim 1, characterized in that: The outer wall of the buffer sleeve (4) is provided with multiple air guide grooves, which are formed by etching to form micro grooves. The exhaust port (94) is tilted and aligned with the outer wall of the buffer sleeve (4).

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