A gas dissolving and releasing head

Abstract

This application discloses a dissolved gas release head, including a first end cap and a second end cap. A release chamber is located at the center of the first end cap, and multiple axial arc-shaped protrusions are provided on one end face of the first end cap. These arc-shaped protrusions extend from the center of the first end cap towards the edge, forming radial arc-shaped baffles. The first end cap and the second end cap are fixedly connected, and the arc-shaped baffles abut against the second end cap. The space between adjacent arc-shaped baffles forms an arc-shaped channel. This application uses multiple arc-shaped channels to form a planar dissolved gas release, and the arc-shaped channels allow the release head to rotate, stirring nearby wastewater and forming a radial release surface. This significantly improves the release efficiency of depressurized dissolved gas water, and the spiral centrifugal depressurization release avoids the clogging problem associated with microporous release.

Description

Technical Field

[0001] This application relates to dissolved gas equipment, and more specifically, to a dissolved gas release head. Background Technology

[0002] The principle of depressurized air flotation: Dissolved air in the dissolved air tank is released under pressure through the dissolved air release head, forming bubbles with a diameter of 30-50 μm. These bubbles adhere to the flocs in the wastewater, forming a flotation mass with a specific gravity less than water. The flotation mass rises to the water surface, forming a scum layer, which is removed by a scraper conveyor. This achieves the removal of some insoluble impurities from the wastewater. The effectiveness of wastewater flotation is affected by the depressurization and release effect of the dissolved air, with the effectiveness of the dissolved air release head directly influencing the depressurization and release effect.

[0003] Traditional dissolved air water depressurization release methods mainly include two types: 1. The release head is a hollow pipe, typically made in a "cross" or "star" shape to increase the release range of the dissolved air water. The hollow pipe has many micropores for ventilation, through which the dissolved air water is released. 2. The release head is disc-shaped, with many tiny holes on its surface. The dissolved air water is released under depressurization through these holes.

[0004] The smaller the micropores, the more microbubbles are formed, resulting in a better flotation effect and a better decompression and release effect of dissolved air water. However, the release efficiency of the perforated outlet is low, and the released dissolved air water is wastewater with a high content of impurities. After a traditional dissolved air release head has been running continuously for a period of time, most of the micropores become clogged, requiring the machine to be stopped for cleaning. Summary of the Invention

[0005] This application provides a dissolved gas release head that uses multiple arc-shaped channels to form a planar dissolved gas release. The arc-shaped channels allow the release head to rotate, which can agitate the nearby sewage and form a radial release surface, greatly improving the release efficiency of depressurized dissolved gas water. Furthermore, the spiral centrifugal depressurization release avoids the clogging problem that exists with microporous release.

[0006] This application provides a dissolved gas release head, including a first end cap and a second end cap;

[0007] The first end cap has a release cavity at its center and multiple axial arc-shaped protrusions on one end face of the first end cap. The arc-shaped protrusions extend from the center of the first end cap to the edge to form a radial arc-shaped partition.

[0008] The first end cap and the second end cap are fixedly connected, the arc-shaped partition abuts against the second end cap, and the space between adjacent arc-shaped partitions forms an arc-shaped channel.

[0009] Preferably, the center of the first end cap is provided with a through hole communicating with the arc-shaped channel, the through hole is connected to the first end of the transition tube, and the second end of the transition tube is connected to the dissolved gas tank;

[0010] A portion of the through-hole forms a release chamber, the diameter of which is larger than the inner diameter of the first end of the transition tube.

[0011] Preferably, the first end of the transition pipe is rotatably connected to the first end cap, and the second end of the transition pipe is fixedly connected to the outlet pipe of the dissolved air tank.

[0012] Preferably, the first end of the transition tube is rotatably connected to the first end cap via a bearing.

[0013] Preferably, the through hole is a stepped hole, with the small diameter section extending from the stepped surface of the stepped hole to the first end face of the first end cover, and the large diameter section extending from the stepped surface to the second end face of the first end cover. The large diameter section is connected to the outer ring of the bearing, and the small diameter section is connected to the arc-shaped channel.

[0014] Preferably, the first end of the transition pipe is fixedly connected to the first end cap, and the second end of the transition pipe is rotatably connected to the outlet pipe of the dissolved air tank.

[0015] Preferably, a blind hole is provided at the center of the second end cap, and the blind hole communicates with the through hole.

[0016] Preferably, the first end cap and the second end cap are fixedly connected by bolts and nuts.

[0017] Preferably, the transition pipe includes a first pipe section and a second pipe section, wherein the inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section.

[0018] Preferably, the end of the second pipe section is connected to the first end cap.

[0019] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0021] Figure 1 This is a front view of the dissolved gas release head provided in this application;

[0022] Figure 2 for Figure 1 Top view;

[0023] Figure 3 An exploded view of the dissolved gas release head provided in this application. Detailed Implementation

[0024] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0027] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] This application provides a dissolved gas release head that uses multiple arc-shaped channels to form a planar dissolved gas release. The arc-shaped channels allow the release head to rotate, which can agitate the nearby sewage and form a radial release surface, greatly improving the release efficiency of depressurized dissolved gas water. Furthermore, the spiral centrifugal depressurization release avoids the clogging problem that exists with microporous release.

[0029] Combination Figure 1-3 As shown, the dissolved gas release head includes a first end cap 200 and a second end cap 300. A release chamber is provided at the center of the first end cap 200, and multiple axial arc-shaped protrusions are provided on one end face of the first end cap 200. 22 0, arc-shaped protrusion 22 0 from the first end cap 2 The center of 00 extends towards the edge, forming a radially curved partition. First end cap. 2 00 and the second end cap 3 00 Fixed connection, arc-shaped partition and second end cap 3 00 connects, and the space between adjacent arc-shaped partitions forms an arc-shaped channel 230.

[0030] It should be noted that the height and number of the arc-shaped protrusions of the dissolved air release head can be determined according to the impurity content in different types of wastewater to ensure the flotation decontamination effect.

[0031] As an example, the first end cap 200 and the second end cap 300 are respectively provided with threaded holes 210 and 310, and the first end cap 200 and the second end cap 300 are fixedly connected by bolts and nuts.

[0032] The first end cap 200 has a through hole 240 at its center, which communicates with the arc-shaped channel. The through hole 240 is connected to the first end of the transition tube 100, and the second end of the transition tube 100 is connected to the dissolved gas tank (not shown in the figure). A portion of the through hole forms a release chamber, the diameter of which is larger than the inner diameter of the first end of the transition tube.

[0033] As one embodiment, the first end of the transition tube 100 is rotatably connected to the first end cap 200, and the second end of the transition tube 100 is fixedly connected to the outlet pipe of the dissolved gas tank (e.g., by thread).

[0034] Specifically, as an example, such as Figure 1 and 3 As shown, the first end of the transition tube 100 is rotatably connected to the first end cap 200 via a bearing 400. The through hole 240 is a stepped hole, with a small-diameter section extending from the stepped surface of the stepped hole toward the first end face of the first end cap 200 (towards the second end cap 300), and a large-diameter section extending from the stepped surface toward the second end face of the first end cap 200 (towards the dissolved gas tank). The large-diameter section is connected to the outer ring of the bearing 400, and the inner ring of the bearing is connected to the transition tube 100. The small-diameter section forms a release cavity, which communicates with the arc-shaped channel 230.

[0035] In another embodiment, the first end of the transition tube 100 is fixedly connected to the first end cap, and the second end of the transition tube 100 is rotatably connected to the outlet pipe of the dissolved gas tank (e.g., via a bearing). In this embodiment, as an example, the end of the through hole 240 near the transition tube 100 is provided with an internal thread, which is connected to the external thread of the first end of the transition tube 100 through the internal thread. The end of the through hole 240 near the second end cap 300 is a smooth hole, forming a release cavity.

[0036] As an example, such as Figure 1 As shown, the inner diameter of the transition pipe remains unchanged. The dissolved gas water in the dissolved gas tank experiences pressure release at the end of the transition pipe 100, and the dissolved gas water is then released through the arc-shaped channel.

[0037] As one embodiment, the transition pipe 100 includes a first pipe section and a second pipe section. The inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section, and the end of the second pipe section is connected to a first end cap. Thus, the dissolved gas water in the dissolved gas tank experiences pressure release in the second pipe section of the transition pipe 100, and the dissolved gas water is then released through an arc-shaped channel. Compared to the aforementioned non-variable diameter transition pipe, this embodiment has a larger release chamber and a better pressure release effect.

[0038] In a preferred embodiment, a blind hole is provided at the center of the second end cap, and the blind hole communicates with the through hole. Compared to a design without a blind hole on the second end cap, the communication between the blind hole and the through hole expands the release cavity, resulting in a better release effect of the release head.

[0039] Multiple arc-shaped channels within the dissolved gas release head form a radial dissolved gas release surface, and these channels also create a spiral structure within the release head. During release, the release head rotates under the impact of pressurized dissolved water from the dissolved gas tank. Its rotational speed is directly proportional to the pressure of the dissolved water; the higher the pressure, the faster the release head rotates. During rotation, the ejected dissolved water tends to separate, creating a fully mixed gas-liquid state. The rotational force continuously agitates the nearby water flow, further refining the bubbles so that they carry more flocculent particles as they rise, effectively improving dissolved gas release efficiency and achieving a more efficient, larger coverage area, and more uniform air flotation separation effect. Furthermore, the spiral centrifugal depressurization release avoids the clogging problems associated with microporous release. Even during prolonged operation, the dissolved gas release head will not become clogged, effectively ensuring the working efficiency of the air flotation device.

[0040] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A dissolved gas release head, characterized in that, Includes a first end cap and a second end cap; The first end cap has a release cavity at its center and a plurality of axial arc-shaped protrusions on one end face of the first end cap. The arc-shaped protrusions extend from the center of the first end cap to the edge to form a radial arc-shaped partition. The first end cap is fixedly connected to the second end cap, the arc-shaped partition abuts against the second end cap, and the space between adjacent arc-shaped partitions forms an arc-shaped channel; The first end cap has a through hole at its center that communicates with the arc-shaped channel. The through hole is connected to the first end of the transition tube, and the second end of the transition tube is connected to the dissolved gas tank. The second end cap has a blind hole at its center that communicates with the through hole. A portion of the through hole forms the release cavity, and the diameter of the release cavity is larger than the inner diameter of the first end of the transition tube; The through hole is a stepped hole, with a small diameter section extending from the stepped surface of the stepped hole to the first end face of the first end cover, and a large diameter section extending from the stepped surface to the second end face of the first end cover. The large diameter section is connected to the outer ring of the bearing, and the small diameter section is connected to the arc-shaped channel. Pressurized dissolved air water impacts the dissolved air release head, causing it to rotate and form a radial release surface to eject the dissolved air water. The rotational speed of the release head is proportional to the pressure of the dissolved air water.

2. The dissolved gas release head according to claim 1, characterized in that, The first end of the transition tube is rotatably connected to the first end cap, and the second end of the transition tube is fixedly connected to the outlet pipe of the dissolved gas tank.

3. The dissolved gas release head according to claim 2, characterized in that, The first end of the transition tube is rotatably connected to the first end cap via a bearing.

4. The dissolved gas release head according to claim 1, characterized in that, The first end of the transition pipe is fixedly connected to the first end cap, and the second end of the transition pipe is rotatably connected to the outlet pipe of the dissolved gas tank.

5. The dissolved gas release head according to claim 1, characterized in that, The first end cap and the second end cap are fixedly connected by bolts and nuts.

6. The dissolved gas release head according to claim 1, characterized in that, The transition pipe includes a first pipe section and a second pipe section, wherein the inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section.

7. The dissolved gas release head according to claim 6, characterized in that, The end of the second pipe section is connected to the first end cap.

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