Automatic exhaust valve capable of preventing water carrying

Abstract

The invention relates to an automatic exhaust valve capable of preventing water carrying, and belongs to the technical field of exhaust valves, the automatic exhaust valve comprises a valve body, a floating ball opening and closing device and a water filtering device, the interior of the valve body is divided into an exhaust chamber and an aeration chamber through a partition plate, the partition plate is provided with a gap groove used for communicating the exhaust chamber with the aeration chamber, the top of the exhaust chamber is provided with a valve cover, and the valve cover is provided with an exhaust device; the floating ball opening and closing device is arranged in the exhaust chamber to float upwards to seal the exhaust device or sink to open the exhaust device, a water inlet is formed in the bottom of the aeration chamber, and the water filtering device is arranged in the aeration chamber. Separated water and gas enter the exhaust chamber through the gap groove, exhaust is smoother, exhausted gas does not contain water, the floating ball opening and closing device floats upwards to close the exhaust device when water is excessive, and water spraying is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of exhaust valves, and in particular relates to an automatic exhaust valve that prevents water from entering the exhaust valve. Background Art

[0002] The automatic exhaust valve is a device that automatically removes air by the opening and closing mechanism in the valve body. It is easy to install, compact, and avoids the trouble of manual operation and management. It is widely used in hot water heating systems. Most automatic exhaust valves use a floating ball opening and closing mechanism. When the valve is full of water, the float rises and the exhaust port is automatically closed; when the amount of air in the valve increases, the water level decreases, the float droops by its own weight, and the exhaust port opens to exhaust. However, in actual use, aeration and exhaust in the valve often occur at the same time, resulting in water vapor mixing, causing the exhaust port to exhaust and spray water, resulting in water spray pollution.

[0003] Therefore, an anti-water automatic exhaust valve with full separation of water and gas, no water in the exhaust and smooth exhaust is in urgent need of appearance. Summary of the invention

[0004] The invention provides an anti-water automatic exhaust valve, which is used to solve the technical problems of water exhaust and unsmooth exhaust in the automatic exhaust valve in the prior art.

[0005] The present invention is achieved through the following technical scheme: an automatic exhaust valve to prevent water from being carried along, including a valve body, a float opening and closing device and a water filtering device. The interior of the valve body is divided into an exhaust chamber and an aeration chamber by a partition. The partition is provided with a slit groove for connecting the exhaust chamber and the aeration chamber. A valve cover is provided on the top of the exhaust chamber, and the valve cover is provided with an exhaust device. The float opening and closing device is arranged in the exhaust chamber to float up to close the exhaust device or sink to open the exhaust device. A water inlet is provided at the bottom of the aeration chamber, and the water filtering device is arranged in the aeration chamber.

[0006] In order to better realize the present invention, further optimization is made in the above structure, the water filtering device includes a thorny bubble filter and a fiber cloth, the thorny bubble filter is cylindrically arranged in the aeration chamber, and the fiber cloth is filled in the thorny bubble filter.

[0007] In order to better realize the present invention, further optimization is made in the above structure. The float opening and closing device includes a buoyancy ball and a counterweight block. A column is provided at the bottom of the buoyancy ball, and the counterweight block is provided with a through hole. The column is fixedly inserted in the through hole and extends from the bottom. A transverse hole is provided at one end of the column extending out of the through hole, and a positioning pin is inserted in the transverse hole. Both ends of the positioning pin extend laterally out of the transverse hole.

[0008] In order to better realize the present invention, further optimization is made in the above structure, the counterweight block is a cylindrical block, the top surface of the counterweight block is provided with an inner concave surface which is concentric with the outer circular wall of the counterweight block, and the through hole is an eccentric hole.

[0009] In order to better realize the present invention, further optimization is made in the above structure, the exhaust device is a plug, the valve cover is provided with a mounting hole aligned with the through hole, the plug is installed in the mounting hole, the bottom surface of the plug is provided with an arc surface adapted to the buoyancy ball, the plug is provided with an exhaust hole, and the exhaust hole passes through the top surface and the arc surface of the plug from top to bottom.

[0010] In order to better realize the present invention, further optimization is made in the above structure, the arc surface of the plug is evenly provided with three protrusions along the circumferential direction, the bottom surfaces of the three protrusions are matched with the buoyancy ball, the position of one of the protrusions coincides with the exhaust hole, and the exhaust hole passes through the protrusion.

[0011] In order to better realize the present invention, further optimization is made in the above structure, the plug includes an integrally formed connecting part and a sealing part, the connecting part is provided with an external thread, the mounting hole is provided with an internal thread, the connecting part is detachably screwed in the mounting hole, an annular step surface is formed between the sealing part and the connecting part, the annular step surface is pressed against the valve cover, a sealing ring is provided between the annular step surface and the valve cover, and the arc surface is provided at the bottom of the sealing part.

[0012] In order to better implement the present invention, further optimization is made in the above structure, the slit groove is vertically arranged, and the bottom end of the slit groove is flush with the bottom wall of the exhaust chamber.

[0013] In order to better implement the present invention, further optimization is made in the above structure, the valve cover is detachably fixed to the top of the exhaust chamber by connecting internal and external threads, and a sealing ring is arranged between the valve cover and the exhaust chamber.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The anti-water automatic exhaust valve provided by the present invention comprises a valve body, a float opening and closing device and a water filtering device. The interior of the valve body is divided into an exhaust chamber and an aeration chamber by a partition. The partition is provided with a slit groove for connecting the exhaust chamber and the aeration chamber. A valve cover is provided on the top of the exhaust chamber, and the valve cover is provided with an exhaust device. The float opening and closing device is arranged in the exhaust chamber to float up to close the exhaust device or sink to open the exhaust device. A water inlet is provided at the bottom of the aeration chamber, and the water filtering device is arranged in the aeration chamber. With this structure, water vapor first enters the aeration chamber through the water inlet, and is filtered by the water filtering device in the aeration chamber to filter out impurities and fully separate water and bubbles, so that the separated water and gas enter the exhaust chamber through the slit groove, the exhaust is smoother, and the exhaust does not carry water. When there is excessive water, the float opening and closing device floats up to close the exhaust device to prevent water spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the water-proof automatic exhaust valve in the present invention;

[0018] Figure 2 is a top view of the counterweight block of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the plug in the present invention.

[0020] In the figure:

[0021] 1-valve body; 2-water filter; 3-exhaust chamber; 4-aeration chamber; 5-slit groove; 6-valve cover; 7-water inlet; 8-buoyancy ball; 9-weight block; 10-column; 11-inner concave surface; 12-through hole; 13-plug; 14-arc surface; 15-exhaust hole; 16-convex column; 17-connecting part; 18-sealing part; 19-annular step surface; 20-sealing ring; 21-locating pin. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] In this embodiment, the water-proof automatic exhaust valve, such as Figure 1 As shown, it includes a valve body 1, a float opening and closing device and a water filtering device 2. Specifically, the interior of the valve body 1 is divided into an exhaust chamber 3 and an aeration chamber 4 by a partition. The partition is provided with a slit groove 5 for connecting the exhaust chamber 3 and the aeration chamber 4. The top of the exhaust chamber 3 is provided with a valve cover 6. The valve cover 6 is provided with an exhaust device. The float opening and closing device is arranged in the exhaust chamber 3 to float up to close the exhaust device or sink to open the exhaust device. The bottom of the aeration chamber 4 is provided with a water inlet 7. The water filtering device 2 is arranged in the aeration chamber 4.

[0027] With this structure, water vapor first enters the aeration chamber 4 through the water inlet 7, and is filtered by the water filter 2 in the aeration chamber 4 to remove impurities and fully separate water and bubbles, so that the separated water and gas enter the exhaust chamber 3 through the slit groove 5. Water sinks in the lower part of the exhaust chamber 3 and can make the float opening and closing device float, and the gas floats on the upper part of the exhaust chamber 3 to be discharged through the exhaust device. The exhaust is smoother and does not contain water. When there is excessive water, the float opening and closing device further floats to close the exhaust device to prevent water spraying.

[0028] In this embodiment, the water filtering device 2 includes a thorny bubble filter and a fiber cloth. The thorny bubble filter is used to puncture bubbles to separate the gas in the bubbles from the water body, and the fiber cloth is used to filter impurities in the water. Specifically, the thorny bubble filter is cylindrically arranged in the aeration chamber 4, and the fiber cloth is filled in the thorny bubble filter. The bubble-carrying water entering the aeration chamber 4 first passes through the thorny bubble filter to rupture the bubbles and separate the gas and liquid, and then passes through the fiber cloth and enters the exhaust chamber 3 through the slit groove 5, while the impurities in the water are blocked by the fiber cloth.

[0029] It is worth noting that the above-mentioned slit groove 5 is vertically arranged, and the bottom end of the above-mentioned slit groove 5 is flush with the bottom wall of the above-mentioned exhaust chamber 3, thereby ensuring that the liquid level in the above-mentioned exhaust chamber 3 is the same as the liquid level in the above-mentioned aeration chamber 4, so that the process of water flowing from the above-mentioned aeration chamber 4 to the above-mentioned exhaust chamber 3 is smooth, and no new bubbles are generated.

[0030] As a specific implementation of this embodiment, the above-mentioned floating ball opening and closing device includes a buoyancy ball 8 and a counterweight block 9. The bottom of the above-mentioned buoyancy ball 8 is integrally formed with a column 10, and the above-mentioned counterweight block 9 is provided with a through hole 12. The above-mentioned column 10 is fixedly inserted in the above-mentioned through hole 12 and extends from the bottom. The end of the above-mentioned column 10 extending out of the through hole 12 is provided with a transverse hole, and a positioning pin 21 is inserted in the above-mentioned transverse hole. The two ends of the above-mentioned positioning pin 21 extend transversely outside the above-mentioned transverse hole. The above-mentioned positioning pin 21 is used to prevent the above-mentioned counterweight block 9 from completely detaching from the above The column is provided so that the counterweight 9 can sink with the buoyancy ball 8. When in use, the buoyancy ball 8 floats on the liquid surface and can float up or sink with the counterweight 9. The column 10 extended from the lower part limits the lowest position of the buoyancy ball 8. When the internal pressure of the system where the exhaust valve is located is too high, the buoyancy ball 8 always blocks the exhaust device and causes the problem of high-pressure gas resistance, the counterweight 9 can rely on its own gravity to sink the buoyancy ball 8, thereby eliminating the high-pressure gas resistance phenomenon and ensuring that the system can be exhausted normally under high-pressure state.

[0031] In the present embodiment, the counterweight block 9 is a cylindrical block, and the top surface of the counterweight block 9 is provided with an inner concave surface 11 which is concentric with the outer circular wall of the counterweight block 9, and the through hole 12 is an eccentric hole, that is, the through hole 12 is not concentric with the inner concave surface 11, so that the pulling force applied by the counterweight block 9 to the buoyancy ball 8 in each direction is different. When the exhaust device is closed by the buoyancy ball 8 and the liquid level in the exhaust chamber 3 drops, and the system needs to be re-exhausted, as the liquid level drops, the buoyancy of the buoyancy ball 8 begins to decrease, and the pulling force applied by the counterweight block 9 to the buoyancy ball 8 increases. The pulling force applied by the counterweight block 9 to the buoyancy ball 8 in each direction is unbalanced, which can help the buoyancy ball 8 to more easily detach from the exhaust device, thereby opening the valve to deflate.

[0032] In this embodiment, the exhaust device is a plug 13, the valve cover 6 is provided with a mounting hole vertically aligned with the through hole 12, the plug 13 is installed in the mounting hole, the bottom surface of the plug 13 is provided with a circular arc surface 14 adapted to the buoyancy ball 8, the plug 13 is provided with an exhaust hole 15, and the exhaust hole 15 passes through the top surface and the circular arc surface 14 of the plug 13 from top to bottom. The buoyancy ball 8 rises with the liquid level until it is pressed against the circular arc surface 14, thereby blocking the exhaust hole 15, and the valve is closed at this time.

[0033] Furthermore, the arc surface 14 of the plug 13 is evenly provided with three protrusions 16 along the circumferential direction, and the bottom surfaces of the three protrusions 16 are matched with the buoyancy ball 8. The position of one of the protrusions 16 coincides with the exhaust hole 15, and the exhaust hole 15 passes through the protrusion 16. The protrusion 16 prevents the buoyancy ball 8 from contacting the arc surface 14. The buoyancy ball 8 is tightly pressed against the arc surface 14, resulting in a large contact area, and the capillary force generated by the water between the contact surfaces is also greater, so that it is easy to As a result, the buoyancy ball 8 is not easy to separate from the arc surface 14, and the three protrusions 16 are pressed against the buoyancy ball 8, which greatly reduces the capillary force of the contact surface, thereby making it easier for the buoyancy ball 8 to separate from the plug 13, thereby opening the valve to release air. At the same time, the exhaust hole 15 passes through one of the protrusions 16, so that the exhaust hole 15 is also eccentrically arranged. The eccentric exhaust hole 15 makes the counterweight block 9 fall and produce an unbalanced lever force, thereby making it easier to pull open the buoyancy ball 8.

[0034] In this embodiment, the plug 13 includes an integrally formed connection portion 17 and a sealing portion 18. The connection portion 17 is provided with an external thread, and the mounting hole is provided with an internal thread. The connection portion 17 is detachably screwed in the mounting hole. An annular step surface 19 is formed between the sealing portion 18 and the connection portion 17. The annular step surface 19 presses against the valve cover 6. A sealing ring 20 is provided between the annular step surface 19 and the valve cover 6. The arc surface 14 is provided at the bottom of the sealing portion 18. At the same time, the valve cover 6 is detachably fixed to the top of the exhaust chamber 3 by the connection of internal and external threads. A sealing ring 20 is provided between the valve cover 6 and the exhaust chamber 3, thereby improving the sealing performance and ensuring that the gas can only be discharged through the exhaust hole 15.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Anti-water automatic exhaust valve, characterized by: The invention comprises a valve body (1), a floating ball opening and closing device and a water filtering device (2); the interior of the valve body (1) is divided into an exhaust chamber (3) and an aeration chamber (4) by a partition; the partition is provided with a slit groove (5) for connecting the exhaust chamber (3) and the aeration chamber (4); a valve cover (6) is provided at the top of the exhaust chamber (3); the valve cover (6) is provided with an exhaust device; the floating ball opening and closing device is arranged in the exhaust chamber (3) to float up to close the exhaust device or sink down to open the exhaust device; a water inlet (7) is provided at the bottom of the aeration chamber (4); and the water filtering device (2) is arranged in the aeration chamber (4).

2. The anti-water automatic exhaust valve according to claim 1 is characterized in that: The water filtering device (2) comprises a thorny bubble filter and a fiber cloth, wherein the thorny bubble filter is arranged in a cylindrical shape in the aeration chamber (4), and the fiber cloth is filled in the thorny bubble filter.

3. The anti-water automatic exhaust valve according to claim 1 is characterized in that: The floating ball opening and closing device comprises a buoyancy ball (8) and a counterweight block (9), wherein a column (10) is provided at the bottom of the buoyancy ball (8), and the counterweight block (9) is provided with a through hole (12), wherein the column (10) is fixedly inserted in the through hole (12) and extends out from the bottom, and a transverse hole is provided at one end of the column (10) extending out of the through hole (12), wherein a positioning pin (21) is inserted in the transverse hole, and both ends of the positioning pin (21) extend transversely out of the transverse hole.

4. The water-proof automatic exhaust valve according to claim 3 is characterized in that: The counterweight block (9) is a cylindrical block, the top surface of the counterweight block (9) is provided with an inner concave surface (11) which is cocentric with the outer circular wall of the counterweight block (9), and the through hole (12) is an eccentric hole.

5. The anti-water automatic exhaust valve according to claim 4 is characterized in that: The exhaust device is a plug (13), the valve cover (6) is provided with a mounting hole aligned with the through hole (12), the plug (13) is installed in the mounting hole, the bottom surface of the plug (13) is provided with a circular arc surface (14) adapted to the buoyancy ball (8), the plug (13) is provided with an exhaust hole (15), and the exhaust hole (15) passes through the top surface and the circular arc surface (14) of the plug (13) from top to bottom.

6. The anti-water automatic exhaust valve according to claim 5, characterized in that: The arc surface (14) of the plug (13) is evenly provided with three protrusions (16) along the circumferential direction, and the bottom surfaces of the three protrusions (16) are matched with the buoyancy ball (8), the position of one of the protrusions (16) coincides with the exhaust hole (15), and the exhaust hole (15) passes through the protrusion (16).

7. The water-proof automatic exhaust valve according to claim 5, characterized in that: The plug (13) comprises an integrally formed connecting portion (17) and a sealing portion (18); the connecting portion (17) is provided with an external thread, the mounting hole is provided with an internal thread, the connecting portion (17) is detachably screwed into the mounting hole, an annular step surface (19) is formed between the sealing portion (18) and the connecting portion (17), the annular step surface (19) is pressed against the valve cover (6), a sealing ring (20) is provided between the annular step surface (19) and the valve cover (6), and the arc surface (14) is provided at the bottom of the sealing portion (18).

8. The water-proof automatic exhaust valve according to any one of claims 1 to 7, characterized in that: The slit groove (5) is arranged vertically, and the bottom end of the slit groove (5) is flush with the bottom wall of the exhaust chamber (3).

9. The anti-water automatic exhaust valve according to claim 8, characterized in that: The valve cover (6) is detachably fixed to the top of the exhaust chamber (3) by means of internal and external threaded connection, and a sealing ring (20) is provided between the valve cover (6) and the exhaust chamber (3).

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