A high-entrainment-efficiency pressure vessel jet structure

Abstract

The utility model discloses a kind of high volume-suction efficiency's pressure vessel jet structure, it is related to pressure vessel technical field.The structure includes injection port and mixing chamber, injection port is shrinkage conical structure, medium can be accelerated to high-speed jet state;The lower part of mixing chamber is cylindrical, top is provided with baffle, upper portion side wall is opened with suction hole, injection port coaxial assembly is in the middle part of mixing chamber and outlet is below suction hole.Working, high-speed jet forms low pressure area, by suction hole volume-suction container medium into mixing chamber mixing, after mixing, medium is diffused to container by lower part, forms circulating flow.The utility model improves filling flow state, significantly improves filling efficiency, reduces energy consumption, and is suitable for the fast filling scene of chemical industry, energy and other fields.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, specifically to a high-efficiency entrainment jet structure for improving medium filling efficiency, applicable to rapid filling scenarios of pressure vessels in chemical, energy, and pharmaceutical fields. Background Technology

[0002] In the fields of chemical, energy, and pharmaceutical industries, pressure vessels are core equipment for media storage and transportation, and their filling efficiency directly affects production rhythm and operating costs. For scenarios that require rapid filling of media (such as liquid raw materials, gas-liquid mixtures, etc.), excessively slow filling speed will lead to prolonged production intervals, reduced equipment utilization, and may even cause quality fluctuations or safety risks due to prolonged exposure of the media to the filling environment.

[0003] Currently, pressure vessel filling methods primarily rely on the pressure difference of the medium itself or gravity to achieve flow. Specifically, when filling a pressure vessel with a medium, due to the lack of guidance and acceleration of the fluid, the medium encounters diffusion resistance after entering the vessel due to the sudden expansion of the internal space. Some media may even form backflow or eddies near the inlet. This disordered flow state makes it difficult for the medium to quickly and smoothly fill the vessel, resulting in a significant increase in filling time.

[0004] It is evident that existing pressure vessels suffer from drawbacks such as low efficiency, high energy consumption, and susceptibility to additional problems during the filling process, failing to meet the demands of modern industry for rapid, efficient, and stable filling. Therefore, developing a pressure vessel jet structure that can improve the filling flow pattern and accelerate the medium filling speed is crucial for solving these problems. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a pressure vessel jet structure in light of the above-mentioned prior art, which aims to solve the problems of low efficiency and high energy consumption in the existing pressure vessel filling process, and to accelerate the medium filling speed by improving the filling flow state.

[0006] The technical solution adopted by this utility model to solve the above problems is: a pressure vessel jet structure, mainly including a jet nozzle and a mixing chamber, which are assembled in a specific way to form a fluid channel that works in concert.

[0007] The injection port is a converging structure with a conical cross-section. This conical design causes the flow area to gradually shrink along the media flow direction, thereby accelerating the input high-pressure fluid to a high-speed jet state. The injection port and the filling pipe are connected. The filling pipe serves as the media input channel, transporting the high-pressure filling media to the injection port. The injection port receives the media from the filling pipe and accelerates it into a high-speed jet through its converging conical structure, achieving media flow and kinetic energy enhancement from the filling pipe to the injection port. Together, they constitute the transport and acceleration path for the media before it enters the mixing chamber.

[0008] The lower part of the mixing chamber is a cylindrical structure, and the top is sealed with a baffle. Multiple suction holes are evenly opened around the upper side wall. The injection port is coaxially assembled in the axial middle of the mixing chamber, and its outlet end is located below the suction hole and facing the lower part of the mixing chamber.

[0009] During operation, the high-speed jet is ejected from the nozzle, creating a low-pressure zone at the outlet. This causes the medium to be mixed inside the pressure vessel outside the mixing chamber to be drawn into the mixing chamber through the upper suction hole, where it is fully mixed with the high-speed filling medium ejected from the nozzle. The mixed medium gains kinetic energy under the kinetic energy transfer and mixing action of the high-speed jet, and diffuses into the pressure vessel after being guided by the cylindrical structure at the bottom of the mixing chamber. As the liquid level of the medium in the vessel rises, some of the medium will flow back into the mixing chamber through the upper suction hole, where it will be mixed again with the newly entered filling medium and then accelerated out, forming a continuous internal circulation flow.

[0010] Through the above-described cyclic process, the filling medium can quickly mix and diffuse with the original medium in the container, significantly shortening the filling time, improving filling efficiency, and reducing the demand for driving pressure, thus reducing energy consumption.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Significantly improve filling efficiency: The medium is accelerated into a high-speed jet through the injection port, forming a low-pressure zone at the outlet end. The medium to be mixed in the pressure vessel is drawn into the mixing chamber, where it is fully mixed with the new filling medium and then diffuses. At the same time, a continuous internal circulation flow is formed, which allows the medium to quickly and smoothly fill the container, greatly shortening the filling time.

[0012] 2. Reduced energy consumption: The kinetic energy transfer and circulation mechanism of the high-speed jet reduces the demand for driving pressure, thereby reducing energy consumption during the filling process.

[0013] 3. Improved filling flow: It avoids the disordered flow state such as diffusion resistance, backflow or eddies caused by the sudden expansion of the container space in traditional filling methods, making the medium flow more orderly and improving the stability of filling.

[0014] 4. Reduce additional problems: By accelerating the filling speed, the time the medium is exposed to the filling environment is shortened, reducing the quality fluctuations or safety risks that may be caused by prolonged exposure. Attached Figure Description

[0015] Figure 1 is a structural schematic diagram of this utility model; In the diagram: 1. Filling pipe; 2. Pressure vessel body; 3. Baffle; 4. Injection port; 5. Mixing chamber. Detailed Implementation

[0016] The technical solution of this utility model will be described in more detail below with reference to preferred embodiments. However, these embodiments are merely descriptions of preferred implementations of this utility model and should not be construed as limiting the scope of this utility model in any way.

[0017] Example 1: This embodiment provides a high-efficiency entrainment jet structure for a pressure vessel, including a jet nozzle 4 and a mixing chamber 5. The jet nozzle 4 is a converging conical structure with a cone angle of 30°, made of stainless steel, and assembled in the axial center of the mixing chamber via a flange connection. The lower part of the mixing chamber 5 is a cylindrical structure with an inner diameter of 200mm. An arc-shaped baffle 3 (curved inwards towards the mixing chamber) is provided at the top. Six circular suction holes are evenly distributed around the upper sidewall, each with a diameter of 20mm and a central angle of 60° between adjacent suction holes. The total area of ​​the suction holes is 40% of the annular area of ​​the upper sidewall of the mixing chamber. The outlet end of the jet nozzle is located 50mm below the suction holes, facing the lower part of the mixing chamber.

[0018] During operation, the high-pressure filling medium is accelerated to a high-speed jet of 15m / s through the injection port, forming a low-pressure zone at the outlet end. The medium inside the pressure vessel is drawn into the mixing chamber through the suction hole. After the two are mixed, they diffuse into the container through the lower part of the mixing chamber, forming a circulating flow. The filling efficiency is increased by 40% compared with the traditional method.

[0019] Example 2: The difference between this embodiment and Embodiment 1 is that the cone angle of the injection nozzle is 45°, and four elliptical suction holes (major axis 30mm, minor axis 15mm) are opened on the upper side wall of the mixing chamber, with the central angle of adjacent suction holes being 90°.

[0020] Example 3: The difference between this embodiment and Embodiment 1 is that the injection port and the mixing chamber are fixed by welding, the suction holes are rectangular (25mm×15mm) and there are 8 of them, the central angle of adjacent suction holes is 45°, the cone angle of the injection port is 20°, and the baffle is a planar structure.

[0021] The welding fixing method reduces assembly gaps and lowers the risk of media leakage; the rectangular suction hole increases the media intake volume. Tests show that this structure operates stably under high pressure conditions (0.8MPa), and the filling time is reduced by 50% compared to traditional methods.

[0022] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A pressure vessel jet structure with high entrainment efficiency, characterized in that, It includes a spray nozzle and a mixing chamber; the spray nozzle is a converging conical structure, and its flow area gradually shrinks along the direction of medium flow; the lower part of the mixing chamber is a cylindrical structure with a baffle at the top and multiple suction holes circumferentially opened on the upper side wall; the spray nozzle is coaxially assembled in the axial middle of the mixing chamber, and the outlet end of the spray nozzle is located below the suction holes and facing the lower part of the mixing chamber.

2. The high-entrainment-efficiency pressure vessel jet structure according to claim 1, characterized in that, The cross-sectional shape of the suction hole is circular, elliptical, or rectangular.

3. The high-entrainment-efficiency pressure vessel jet structure according to claim 1, characterized in that, The cone angle of the injection nozzle is 15°-60°.

4. The high-entrainment-efficiency pressure vessel jet structure according to claim 1, characterized in that, The number of suction holes is 4-8, and the central angles of adjacent suction holes are equal.

5. The high-entrainment-efficiency pressure vessel jet structure according to claim 1, characterized in that, The injection port and the mixing chamber are connected by a flange or fixed by welding.

6. The high-entrainment pressure vessel jet structure according to claim 1, characterized in that, The total area of ​​the suction holes is 30%-50% of the annular area of ​​the upper sidewall of the mixing chamber.

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