Three-way reversing valve

Abstract

The utility model belongs to the technical field of airflow valves, and particularly relates to a three-way reversing valve. According to the three-way reversing valve, the first elastic sealing baffle is arranged on the outer side face of the first valve, and the second elastic sealing baffle is arranged on the outer side face of the second valve, so that the valve element drives the first valve and the second valve to rotate; the first valve and the check ring are matched in a sealed mode through the first elastic sealing baffle to enable the smoke air outlet channel and the air inlet channel to be isolated in a sealed mode, or the second valve and the check ring are matched in a sealed mode through the second elastic sealing baffle to enable the air outlet channel and the air inlet channel to be isolated in a sealed mode, and the first elastic sealing baffle is made of a hard plate structure. The three-way reversing valve well avoids the situation that deformation or failure easily occurs due to the fact that a sealing ring is adopted in a traditional sealing mode, and it is guaranteed that the three-way reversing valve has the good service life and is good in use reliability.

Description

Technical Field

[0001] The utility model belongs to the technical field of air flow valves, and in particular relates to a three-way reversing valve. Background Art

[0002] In the industrial heating sector, regenerative combustion technology has been widely promoted and applied as a key energy-saving and emission-reduction measure. The core of this technology lies in its systemic cyclic combustion process, which is inseparable from the flue gas-air three-way reversing valve, a crucial component. The performance and lifespan of the three-way reversing valve have a crucial impact on the overall effectiveness of the regenerative combustion system. Specifically, three-way reversing valves typically use sealing rings to seal and isolate the air passages. However, long-term operation in high-temperature environments can easily cause the sealing rings to deform or fail, significantly shortening the lifespan of the reversing valve. Therefore, continuous improvement and optimization of the three-way reversing valve, as well as the development of new reversing devices, are crucial. Utility Model Content

[0003] The purpose of the utility model is to overcome the problem that the sealing ring of the existing three-way reversing valve is very likely to deform or fail when used in a high temperature state for a long time, thereby seriously shortening the service life of the reversing valve. The utility model provides a three-way reversing valve in which an elastic sealing baffle is arranged on the outside of the valve and a sealing cooperation between the valve and the baffle is achieved through the elastic sealing baffle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The three-way reversing valve comprises a valve body and a valve assembly; the valve body is provided with an air inlet duct located on the inner side and a smoke outlet duct and an air outlet duct respectively connected to the air inlet duct, the smoke outlet duct and the air outlet duct are arranged relative to each other at a certain angle, and a retaining ring is provided on the inner side of the valve body, and the retaining ring is arranged on the side of the air inlet duct close to the smoke outlet duct and the air outlet duct; the valve assembly comprises a first valve and a second valve and an elastic sealing structure connected to each other at the ends, the elastic sealing structure comprises a first elastic sealing baffle arranged on the outer side of the first valve and a second elastic sealing baffle arranged on the outer side of the second valve, the first elastic sealing baffle The sealing baffle extends out of the periphery of the first valve, and the second elastic sealing baffle extends out of the periphery of the second valve. A valve core is provided at the connection between the first valve and the second valve. The valve core is used to drive the first valve to seal and cooperate with the first elastic sealing baffle and the retaining ring when it is rotated, so that the smoke outlet duct and the air inlet duct are sealed and isolated, and the second valve is opened to connect the air outlet duct and the air inlet duct. Or the valve core is used to drive the second valve to seal and cooperate with the second elastic sealing baffle and the retaining ring when it is rotated, so that the air outlet duct and the air inlet duct are sealed and isolated, and the first valve is opened to connect the air outlet duct and the air inlet duct.

[0006] Compared with the prior art, the three-way reversing valve of the present invention provides a first elastic sealing baffle on the outer side of the first valve and a second elastic sealing baffle on the outer side of the second valve, so that when the valve core drives the first valve and the second valve to rotate, the first valve cooperates with the first elastic sealing baffle and the retaining ring to seal and isolate the smoke outlet duct and the air inlet duct, or the second valve cooperates with the second elastic sealing baffle and the retaining ring to seal and isolate the air outlet duct and the air inlet duct. The first elastic sealing baffles are both made of a hard plate structure, which better avoids the situation that the traditional sealing method using a sealing ring is prone to deformation or failure, thereby ensuring that the three-way reversing valve has a good service life and the three-way reversing valve has good reliability.

[0007] Furthermore, the first elastic sealing baffle and the second elastic sealing baffle are an integrated structure and are arranged on the outer side of the valve assembly close to the retaining ring; through such an arrangement, the elastic sealing structure is an integrated structure, the overall elastic force of the first elastic sealing baffle and the second elastic sealing baffle is stronger, and the sealing effect with the retaining ring is achieved.

[0008] Furthermore, the elastic sealing structure is connected to the connection between the first valve and the second valve by a plurality of screws, and a pressure plate structure is tightly connected to the outside of the elastic sealing structure by the screws, and the pressure plate structure includes a first pressure plate tightly attached to the outer side of the first elastic sealing baffle and a second pressure plate tightly attached to the outer side of the second elastic sealing baffle; through such an arrangement, by further arranging a pressure plate structure on the outside of the elastic sealing structure, the first elastic sealing baffle and the second elastic sealing baffle have better elastic force and the elastic sealing effect is better.

[0009] Furthermore, the elastic sealing structure and the elastic sealing structure are made of metal materials; through such an arrangement, the elastic sealing structure and the elastic sealing structure have better heat resistance and better reliability in use.

[0010] Furthermore, the angle between the first valve and the second valve is half of the angle between the smoke outlet duct and the air outlet duct; through this setting, the smoke outlet duct and the air outlet duct can be set to different angles to adapt to different scenarios.

[0011] Furthermore, the flue gas outlet duct and the air outlet duct are separated by a gas channel partition to form a relatively parallel arrangement, the valve core is rotatably connected to the upper end of the gas channel partition, and the first valve and the second valve are arranged at right angles; through this arrangement, the flue gas outlet duct and the air outlet duct are separated by the gas channel partition and arranged in the same direction, the valve body is manufactured at a lower cost, and it is convenient to connect the flue gas outlet duct and the air outlet duct to external combustion equipment.

[0012] Furthermore, a flange structure is provided at the end of the valve body close to the air inlet duct; this arrangement facilitates the placement and fixation of the valve body through the flange structure, and the assembly and fixation method of the three-way reversing valve is simple.

[0013] Furthermore, it also includes a driving mechanism connected to the valve core in a transmission manner, and the driving mechanism is a rotary cylinder or a forward and reverse motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of a three-way reversing valve.

[0015] Figure 2 It is a longitudinal cross-sectional view of a three-way reversing valve.

[0016] Figure 3 A top view of a three-way directional valve.

[0017] Figure 4 for Figure 2 Cross-sectional view of the BB.

[0018] Figure 5 for Figure 2 Cross-sectional view of AA in the figure.

[0019] Figure 6 Schematic diagram of the first valve closed state.

[0020] Figure 7 This is a schematic diagram of the valve closed state.

[0021] Explanation of reference numerals: valve body 1, air inlet duct 11, flue gas outlet duct 12, air outlet duct 13, retaining ring 14, first valve 21, second valve 22, first elastic sealing baffle 23, second elastic sealing baffle 24, valve core 25, screw 26, first pressure plate 27, second pressure plate 28, gas channel partition 29, flange structure 15, drive mechanism 16. DETAILED DESCRIPTION

[0022] The following describes specific embodiments of the present invention in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0023] See also Figures 1 to 7The three-way reversing valve of the present invention comprises a valve body 1 and a valve assembly; the valve body 1 is provided with an air inlet duct 11 located on the inner side and a flue gas outlet duct 12 and an air outlet duct 13 respectively connected to the air inlet duct 11, the flue gas outlet duct 12 and the air outlet duct 13 are arranged relative to each other at a certain angle, a retaining ring 14 is provided on the inner side of the valve body 1, and the retaining ring 14 is arranged on one side of the air inlet duct 11 close to the flue gas outlet duct 12 and the air outlet duct 13; the valve assembly comprises a first valve 21 and a second valve 22 connected to each other at their ends and an elastic sealing structure, the elastic sealing structure comprises a first elastic sealing baffle 23 arranged on the outer side of the first valve 21 and a second elastic sealing baffle 24 arranged on the outer side of the second valve 22, the first elastic sealing baffle 23 extends out of the periphery of the first valve 21, and the second elastic sealing baffle 24 extends out of the periphery of the second valve 22. A valve core 25 is provided at the connection between the first valve 21 and the second valve 22. The valve core 25 is used to drive the first valve 21 to seal and cooperate with the first elastic sealing baffle 23 and the retaining ring 14 when it is rotated, so that the smoke outlet duct 12 and the air inlet duct 11 are sealed and isolated, and the second valve 22 is opened to connect the air outlet duct 13 and the air inlet duct 11; or the valve core 25 is used to drive the second valve 22 to seal and cooperate with the second elastic sealing baffle 24 and the retaining ring 14 when it is rotated, so that the air outlet duct 13 and the air inlet duct 11 are sealed and isolated, and the first valve 21 is opened to connect the air outlet duct 13 and the air inlet duct 11.

[0024] Compared with the prior art, the three-way reversing valve of the present invention provides a first elastic sealing baffle 23 on the outer side of the first valve 21 and a second elastic sealing baffle 24 on the outer side of the second valve 22, so that when the valve core 25 drives the first valve 21 and the second valve 22 to rotate, the first valve 21 is sealed with the retaining ring 14 through the first elastic sealing baffle 23 to seal and isolate the smoke outlet duct 12 and the air inlet duct 11, or the second valve 22 is sealed with the retaining ring 14 through the second elastic sealing baffle 24 to seal and isolate the air outlet duct 13 and the air inlet duct 11. The first elastic sealing baffle 23 is made of a hard plate structure, which better avoids the situation that the traditional sealing method using a sealing ring is very easy to deform or fail, thereby ensuring that the three-way reversing valve has a good service life and good reliability.

[0025] See also Figures 2 to 7In one embodiment, the retaining ring 14 is rectangular or circular, the first valve 21 and the second valve 22 are correspondingly rectangular or semicircular, and the first elastic sealing baffle 23 and the second elastic sealing baffle 24 are an integrated structure and are arranged on the outer side of the valve assembly close to the retaining ring 14; through such an arrangement, the elastic sealing structure is an integrated structure, the overall elastic force of the first elastic sealing baffle 23 and the second elastic sealing baffle 24 is stronger, and the sealing cooperation effect with the retaining ring 14 is achieved.

[0026] See also Figures 2 to 5 In one embodiment, the elastic sealing structure is connected to the connection between the first valve 21 and the second valve 22 by a plurality of screws 26, and a pressure plate structure is tightly connected to the outside of the elastic sealing structure by the screws 26, and the pressure plate structure includes a first pressure plate 27 that is tightly attached to the outer side of the first sealing baffle and a second pressure plate 28 that is tightly attached to the outer side of the second elastic sealing baffle 24; through such an arrangement, by further arranging a pressure plate structure on the outside of the elastic sealing structure, the first elastic sealing baffle 23 and the second elastic sealing baffle 24 have better elastic force and the elastic sealing effect is better.

[0027] In one embodiment, the elastic sealing structure and the elastic sealing structure are made of metal materials; through such a setting, the elastic sealing structure and the elastic sealing structure have better heat resistance and better reliability in use.

[0028] See also Figures 2 to 5 In one embodiment, the angle between the first valve 21 and the second valve 22 is half of the angle between the smoke outlet duct 12 and the air outlet duct 13; through such a setting, the smoke outlet duct 12 and the air outlet duct 13 can be set to different angles to adapt to different scenarios.

[0029] See also Figures 1 to 5 In one embodiment, the flue gas outlet duct 12 and the air outlet duct 13 are separated by a gas channel partition 29 to form a relatively parallel arrangement, the valve core 25 is rotatably connected to the upper end of the gas channel partition 29, and the first valve 21 and the second valve 22 are arranged at right angles; through this arrangement, the flue gas outlet duct 12 and the air outlet duct 13 are separated by the gas channel partition 29 and arranged in the same direction, the valve body 1 is manufactured at a lower cost, and it is convenient to connect the flue gas outlet duct 12 and the air outlet duct 13 to external combustion equipment.

[0030] See also Figures 1 to 7 In one embodiment, a flange structure 15 is provided at the end of the valve body 1 close to the air inlet duct 11; through such a setting, the valve body 1 is conveniently placed and fixed through the flange structure 15, and the assembly and fixing method of the three-way reversing valve is simple.

[0031] See also Figures 1 to 7 In one embodiment, it further includes a driving mechanism 16 that is transmission-connected to the valve core 25 , and the driving mechanism 16 is a rotary cylinder or a forward and reverse motor.

[0032] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. Three-way reversing valve, characterized in that: include: The valve body is provided with an air inlet duct located on the inside, and a flue gas outlet duct and an air outlet duct respectively connected to the air inlet duct. The flue gas outlet duct and the air outlet duct are arranged relative to each other at a certain angle. A retaining ring is provided on the inside of the valve body. The retaining ring is arranged on the side of the air inlet duct close to the flue gas outlet duct and the air outlet duct. The valve assembly includes a first valve and a second valve connected to each other at their ends and an elastic sealing structure, the elastic sealing structure including a first elastic sealing baffle arranged on the outer side of the first valve and a second elastic sealing baffle arranged on the outer side of the second valve, the first elastic sealing baffle extending out of the periphery of the first valve, the second elastic sealing baffle extending out of the periphery of the second valve, and a valve core is provided at the connection between the first valve and the second valve, the valve core is used to drive the first valve to seal and cooperate with the first elastic sealing baffle and the retaining ring when being rotated so that the smoke outlet duct and the air inlet duct are sealed and isolated, while the second valve is opened and the air outlet duct and the air inlet duct are connected, or the valve core is used to drive the second valve to seal and cooperate with the second elastic sealing baffle and the retaining ring when being rotated so that the air outlet duct and the air inlet duct are sealed and isolated, while the first valve is opened and the air outlet duct and the air inlet duct are connected.

2. The three-way reversing valve according to claim 1, characterized in that: The first elastic sealing baffle and the second elastic sealing baffle are an integral structure and are arranged on the outer side surface of the valve assembly close to the retaining ring.

3. The three-way reversing valve according to claim 2, characterized in that: The elastic sealing structure is connected to the connection between the first valve and the second valve by a plurality of screws, and a pressure plate structure is tightly connected to the outside of the elastic sealing structure by the screws. The pressure plate structure includes a first pressure plate tightly attached to the outer side of the first sealing baffle and a second pressure plate tightly attached to the outer side of the second elastic sealing baffle.

4. The three-way reversing valve according to claim 3, characterized in that: The elastic sealing structure and the elastic sealing structure are made of metal materials.

5. The three-way reversing valve according to claim 1, characterized in that: The angle between the first valve and the second valve is half of the angle between the smoke outlet duct and the air outlet duct.

6. The three-way reversing valve according to claim 1, characterized in that: The smoke outlet duct and the air outlet duct are separated by a gas channel partition to form a relatively parallel arrangement. The valve core is rotatably connected to the upper end of the gas channel partition, and the first valve and the second valve are arranged at a right angle.

7. The three-way reversing valve according to claim 1, characterized in that: The end of the valve body close to the air inlet duct is provided with a flange structure.

8. The three-way reversing valve according to any one of claims 1 to 7, characterized in that: It also includes a driving mechanism connected to the valve core in a transmission manner, and the driving mechanism is a rotary cylinder or a forward and reverse motor.

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