A Venturi mixer with high efficiency for melting ice

Abstract

This utility model discloses a highly efficient Venturi mixer for de-icing, comprising a main body, a contraction cavity, a throat, an exhaust gas cavity, and a diffuser. The outer left side of the diffuser is provided with a ring rib that mates with the inner cavity of the main body. A gap exists between the outer side of the diffuser and the main body, forming a water-guiding cavity. Both ends of the water-guiding cavity are sealed by the ring rib and a limiting protrusion on the right side of the diffuser, respectively. An axial water passage hole is formed in the ring rib, connecting the exhaust gas cavity and the water-guiding cavity. A water inlet hole is provided on the right side of the diffuser, connecting the water-guiding cavity and the interior of the diffuser. This utility model has advantages such as simple structure, low condensate ice thickness, and high de-icing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of engine mixer technology, and in particular to a Venturi mixer with high de-icing efficiency. Background Technology

[0002] Based on the demand for larger displacement gas engines, the larger the engine displacement, the greater the air intake, and the mixing efficiency of the mixer needs to be improved. The most commonly used mixer in the current system is the blade-type spoiler. This type of spoiler creates a boundary layer effect through two blades, and by controlling the blades to generate vortices, it achieves the effect of mixing air, gas, and exhaust gas in a certain proportion. This effect has some effectiveness in practical applications, but the blade-type mixer has a bottleneck in mixing efficiency. When applied to large displacement engines, it will result in low mixing efficiency and insufficient air intake, failing to achieve the optimal value required by the engine.

[0003] Existing patent document CN223048906U discloses a Venturi mixer with high efficiency in de-icing. However, in low-temperature environments, after the engine stops, the water vapor in the air and EGR exhaust gas condenses and flows into the exhaust gas chamber, accumulating and filling the entire chamber. As the temperature drops, the condensate in the exhaust gas chamber freezes. The resulting ice blocks are quite large, and when the engine is restarted, it takes a considerable amount of time to melt the ice in the exhaust gas chamber.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The main purpose of this invention is to propose a Venturi mixer that is simple in structure, easy to improve, and can accelerate the melting efficiency of ice blocks in the mixer.

[0006] Therefore, this utility model proposes a Venturi mixer with high efficiency in melting ice.

[0007] Preferably, the present invention may also have the following technical features:

[0008] A highly efficient venturi mixer for de-icing includes a main body, a contraction chamber, a throat, an exhaust chamber, and a diffuser. The outer left side of the diffuser is provided with a ring rib that mates with the inner cavity of the main body. A gap exists between the outer side of the diffuser and the main body, forming a water-guiding chamber. Both ends of the water-guiding chamber are sealed by the ring rib and a limiting protrusion on the right side of the diffuser, respectively. An axial water passage hole is provided on the ring rib, connecting the exhaust chamber and the water-guiding chamber. A water inlet hole is provided on the right side of the diffuser, connecting the water-guiding chamber and the interior of the diffuser.

[0009] Furthermore, the inner diameter of the water passage is 2–4 mm.

[0010] Furthermore, the inner diameter of the water passage is 3mm.

[0011] Furthermore, the water inlet holes are arranged vertically.

[0012] Furthermore, the inner diameter of the water inlet is 2–4 mm.

[0013] Furthermore, the inner diameter of the water inlet hole is 3mm.

[0014] Furthermore, the cross-section of the ring reinforcement is square.

[0015] Furthermore, the cross-section of the ring reinforcement is semi-circular.

[0016] The beneficial effects of this utility model compared with the prior art include: the exhaust gas chamber uses water passage holes to transfer some of the condensate to the water guide chamber, thereby reducing the thickness of the ice in the exhaust gas chamber, accelerating the melting of the ice in the exhaust gas chamber and the water guide chamber, and reducing the risk of icing; at the same time, the high temperature and high pressure exhaust gas of the engine is used to melt the ice inside the diffuser, and the water formed after the ice melts is blown away by the exhaust gas and carried into the cylinder for combustion. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of an existing Venturi mixer.

[0018] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0020] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0021] like Figure 2The diagram illustrates a highly efficient venturi mixer for de-icing, comprising a main body 1, a contraction cavity 6, a throat 3, and a diffuser 2. One arrangement of the main body 1, contraction cavity 6, throat 3, and diffuser 2 is based on the connection relationship described in prior art patent document CN223048906U. Therefore, in one example, the technical solution of this utility model can be considered a further improvement on the mixer structure shown in prior art patent document CN223048906U, to optimize the problems of mixer icing and de-icing. The outer left side of the diffuser 2 is provided with a ring rib 3 that fits into the inner cavity of the main body 1. The diffuser 2 is fixed in position by an interference fit between the ring rib 3 and the inner cavity of the main body 1. Furthermore, because the diffuser 2 has a structure that gradually expands from left to right, there is a gap between its outer side and the main body 1. This gap forms a water-guiding cavity 5, the two ends of which are sealed by the ring rib 3 and the limiting protrusion 11 on the right side of the diffuser 2, respectively. In other words, the water-guiding cavity 5 in the prior art is a relatively sealed space. The main improvement lies in the following: the annular rib 3 has an axial water passage hole 31, which connects the exhaust gas chamber 4 and the water guiding chamber 5; the diffuser 2 has an upper water hole 12 on its right side, which connects the water guiding chamber 5 and the interior of the diffuser 2. Thus, after the mixer is installed, condensate accumulates in the lower part of the exhaust gas chamber 3, and the water passage hole 31 is correspondingly located in the lower part of the annular rib 3. When the water in the exhaust gas chamber 4 reaches the height of the water passage hole 31, the condensate flows through the water hole 31 into the water guiding chamber 5 on the right. Furthermore, because the inner wall of the right side of the main body 1 is a sloped surface from left to right and downward, the water guiding chamber 5 has a structure that is higher on the left and lower on the right. Therefore, when the condensate flows into the water guiding chamber 5, it flows to the right along the inner wall of the main body 1. As the water level in the water guiding chamber 5 rises, the condensate flows from the upper water hole 12 into the interior of the diffuser 2. In this way, during winter, the exhaust gas chamber 4 uses the water passage 31 to transfer some of the condensate to the water guide chamber 5, thereby reducing the amount of condensate accumulated in the exhaust gas chamber 4, thus reducing the thickness of the ice, accelerating the melting of the ice in the exhaust gas chamber 4 and the water guide chamber 5, and reducing the risk of icing; at the same time, the high temperature and high pressure exhaust gas of the engine melts the ice inside the diffuser 2, and the water formed after the ice melts is blown away by the exhaust gas and carried into the cylinder for combustion.

[0022] Furthermore, the inner diameter of the water passage 31 is 3mm.

[0023] Furthermore, the inner diameter of the water inlet hole 11 is 3mm.

[0024] Furthermore, the ring reinforcement 3 can be a square reinforcement, trapezoidal reinforcement, or semi-circular reinforcement.

[0025] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0026] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. A Venturi mixer with high efficiency in de-icing, comprising a main body, a contraction chamber, a throat, an exhaust chamber, and a diffuser, wherein the outer left side of the diffuser is provided with an annular rib that mates with the inner cavity of the main body, and a gap exists between the outer side of the diffuser and the main body, the gap forming a water guiding cavity, the two ends of the water guiding cavity being sealed by the annular rib and a limiting protrusion ring on the right side of the diffuser, respectively, characterized in that: The ring rib has an axial water passage hole, which connects the exhaust gas chamber and the water guide chamber; the right side of the diffuser pipe has a water inlet hole, which connects the water guide chamber and the interior of the diffuser pipe.

2. The Venturi mixer with high ice-melting efficiency as described in claim 1, characterized in that: The inner diameter of the water passage is 2–4 mm.

3. The Venturi mixer with high ice-melting efficiency as described in claim 2, characterized in that: The inner diameter of the water passage is 3mm.

4. The Venturi mixer with high ice-melting efficiency as described in claim 1, characterized in that: The water inlet holes are arranged vertically.

5. The Venturi mixer with high ice-melting efficiency as described in claim 1, characterized in that: The inner diameter of the water inlet is 2–4 mm.

6. The Venturi mixer with high ice-melting efficiency as described in claim 5, characterized in that: The inner diameter of the water inlet is 3mm.

7. The Venturi mixer with high ice-melting efficiency as described in claim 1, characterized in that: The cross-section of the ring reinforcement is square.

8. The efficient venturi mixer for de-icing as described in claim 1, characterized in that: The cross-section of the ring reinforcement is semi-circular.

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