Composite air exhaust valve structure

Abstract

This invention provides a composite exhaust valve structure, comprising: a body, a top cover, a cap, an exhaust port section, a filter pressure reducing screen, a float, an elastic positioning element, a water-stopping skin, and a waterproof and breathable membrane. The body has an internal accommodating space and an inlet channel at its lower part. The top cover is positioned above the body and has an exhaust channel. The cap is positioned above the top cover and has an opening on one side for installing the exhaust port section. The filter pressure reducing screen is located in the lower region of the accommodating space. The float is positioned above the filter pressure reducing screen. The elastic positioning element is used to fix the filter pressure reducing screen within the accommodating space. The water-stopping skin is positioned above the float. The waterproof and breathable membrane is positioned between the top cover and the cap. This achieves pressure reduction buffering and multiple leak-proof functions.

Claims

1. A composite exhaust valve structure, comprising: a body having an internal accommodating space; a top cover disposed above the body and having a drain channel; a cap disposed above the top cover, having an opening on one side; an exhaust port section installed in the opening; a filter pressure reducing screen having a plurality of perforations and disposed at the inner bottom end of the accommodating space for filtering, guiding, and reducing the pressure of cooling water entering the accommodating space; a float disposed within the accommodating space and above the filter pressure reducing screen; an elastic positioning member disposed within the accommodating space and installed above the filter pressure reducing screen to fix the filter pressure reducing screen to the inner bottom end of the accommodating space; and a water-stopping skin disposed above the float to cooperate with the float in preventing cooling water from leaking into the cap; wherein... The body has an inlet channel at the bottom, through which cooling water is introduced into the accommodating space. The outlet channel is used to introduce gas into the cap and then discharge it outward through the exhaust port section.

2. The composite exhaust valve structure as described in claim 1, wherein, The filter pressure reducing mesh is made of austenitic stainless steel through stamping, and the perforations are arranged in an alternating array.

3. The composite exhaust valve structure as described in claim 1, wherein, An annular groove is provided in the inner bottom area of ​​the accommodating space, and the elastic positioning member is a C-shaped metal spring ring, which can be inserted into the annular groove to engage and press down and position the filter pressure reducing mesh.

4. The composite exhaust valve structure as described in claim 1 further includes a waterproof and breathable membrane disposed between the upper cover and the cap, and located above the exhaust channel, for blocking cooling water and allowing excess gas to be discharged upward.

5. A composite exhaust valve structure, comprising: a body having an internal accommodating space; a top cover disposed above the body and having a drainage channel; a cap disposed above the top cover, having an opening on one side; an exhaust port section installed in the opening; a float disposed within the accommodating space; a water-stopping membrane disposed above the float to cooperate with the float in preventing cooling water from leaking into the cap; and a waterproof and breathable membrane disposed between the top cover and the cap, and located above the drainage channel, to block cooling water and discharge excess gas upwards; wherein... The body has an inlet channel at the bottom, through which cooling water is introduced into the accommodating space; the outlet channel is used to introduce gas into the cap, and then discharge it outward through the exhaust port section.

6. The composite exhaust valve structure as described in claim 4 or 5, wherein, The waterproof and breathable membrane is made of e-PTFE waterproof and breathable fabric.

7. The composite exhaust valve structure as described in claim 6 further includes a support net disposed above the waterproof and breathable membrane to enhance the strength of the waterproof and breathable membrane against water pressure.

8. The composite exhaust valve structure as described in claim 1 or 5 further includes a first O-ring disposed below the inlet channel. When the inlet channel is connected to an external pipeline, the first O-ring is used to strengthen the sealing connection between the external pipeline and the inlet channel to prevent leakage of the cooling water.

9. The composite exhaust valve structure as described in claim 1 or 5 further includes a second O-ring disposed between the opening and the exhaust port section to prevent leakage of gas and / or cooling water.

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