Gas velocity reducer

Abstract

A device has a tube with an inlet, an outlet. A first radial wall extends inward from an inner surface, and a flow divider protrudes rearward from the first radial wall, the flow divider diverting a portion of gases toward the first radial wall. A second radial wall extends inward from the inner surface and is located rearward of the first radial wall. A first longitudinal wall extends between the first and second radial walls to form a circumferential first outer volume. A third radial wall extends inward from the inner surface and is located forward of the first radial wall. A second longitudinal wall forms a circumferential second outer volume. An entrance port allows flow into the first outer volume, a transfer port allows flow from the first outer volume to the second outer volume, and an exit port allows flow from the second outer volume into a bore.

Description

GAS VELOCITY REDUCERCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This disclosure claims the benefit of the filing date of US63 / 613741, filed on 21 Dec2023, and titled GAS VELOCITY REDUCER, the entire content of which is incorporated by reference.TECHNICAL FIELD

[0002] This disclosure relates to devices for reducing the velocity of gases flowing therethrough.BACKGROUND

[0003] Gas tubes provide for the transport of gases from an inlet to an outlet and may be formed to have a selected size or shape for the application. A gas tube may be used in conjunction with another gas tube, such that each tube transport gases of different types. Alternatively, a single flow of gases may be split so that portions of the gases flow via separate tubes or paths within the tubes, and various means have been utilized for altering the velocity and pressure of the gases while flowing therethrough.BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 is an oblique view of an embodiment of a device according to this disclosure.

[0005] Figure 2 is a cross-section side view of the device of Figure 1.

[0006] Figure 3 is an oblique cross-section view of the device of Figure 1.

[0007] Figure 4 is a cross-section botom view of the device of Figure 1 .

[0008] Figure 5 is an oblique cross-section bottom view of the device of Figure 1.DETAILED DESCRIPTION

[0009] In the specification, reference may be made to the spatial relationships between various components and to the spatial orientation of various aspects of components as the devices are depicted in the atached drawings. However, as will be recognized by those skilled in the art after a complete reading of this disclosure, the devices, members, apparatuses, etc. described herein may be positioned in any desired orientation. Thus, the use of terms such as “above,” “below,” “upper,” “lower,” or other like terms to describe a spatial relationship between various components or to describe the spatial orientation of aspects of such components should be understood to describe a relative relationship between the components or a spatial orientation of aspects of such components, respectively, as the device described herein may be oriented in any desired direction.

[0010] This disclosure divulges a device that reduces the velocity of at least some of gases and particulates (“gases”) passing through the device.

[0011] Figures 1 through 5 illustrate reducer 101, Figures 2 and 3 being cross-section views along plane 2, 2-2, 3, and Figures 4 and 5 being cross-section views along plane 4, 5-4, 5.

[0012] Reducer 101 is preferably printed as a unitary component with a central axis 103 and a central bore defined by aligned apertures 105, 107 of portions of reducer 101 that are sized for a desired flow rate or to allow for an object of a selected size to pass therethrough. An outer tube 109 encloses the internal components of reducer 101, and tube 109 may be formed as an integral component or as a separate component assembled with the internal components. In the embodiment shown, components of reducer 101 have elliptical end-view cross-sectional shapes, though these components may be of other shapes, including circular.

[0013] In the embodiment shown, reducer 101 comprises two duplicate sections 11 1, 113 formed together as a unitary structure, though sections 111, 113 may alternatively be formed as separate components and assembled together. It should also be noted that reducer 101 may have only one section 111 , 113 or may have additional sections 111, 113. Gases enter reducer 101 through a rearward entrance 115, which is coupled to a pipe or other conduit carrying high-speed gases. The gases then travel through sections 111, 113 and leave through a forward exit 117.

[0014] Each section 111, 113 comprises a tubular flow divider 119 protruding rearward from an inner end of a rearward angled circumferential wall 121 extending from inner surface 123 of tube 109. As gases enter entrance 115, a portion of the gases pass through aperture 105 and into flow divider 119 of section 111, whereas another portion of the gases flow forward around the outside of divider 119. Gases that flow through aperture 105 enter a central chamber 124.

[0015] A forward angled circumferential wall 125 cooperates with an inner portion of wall 121, flow divider 119, and longitudinal circumferential wall 127, which is spaced radially inward from tube 109, to define inner volume 129 around flow divider 119. Some of the gases that enter volume 129 enter a first outer volume 131 through entrance port 133 formed in wall 127, outer volume 131 being defined by portions of walls 121, 125, 127 and tube 109. The gases in volume 131 then travel around divider 109 to transfer port 134, which is formed in the outer portion of wall 121, and pass into a second outer volume 135. Volume 135 is defined by a rearward angled circumferential wall 137, wall 121, tube 109, and a longitudinal circumferential wall 139 spaced radially inward from tube 109. The gases in volume 135 then travel around chamber 124 to exit port 141 formed in wall 139. These gases then pass through a narrowed nozzle region 143, defined by wall 145, and pass into chamber 124. The gases within chamber 124 may then pass forward toward section 113, where they will be divided into segmented flows as in section 111.

[0016] As visible in the figures, each of inner volume 129, first outer volume 131, and second outer volume 135 has a cross-sectional area that varies based on the angular position about axis 103. This varying cross-section causes the gases within the respective volume to change pressure and velocity as they travel within each volume, and the combined effect of the segmented flows within sections 111, 113 reduces the velocity of the gases between when they enter entrance 115 and when they leave exit 117. One way to achieve the carrying cross-sectional areas is for longitudinal walls defining outer volumes to have an axis offset from an axis of the tube, thereby causing the outer volume to have a varying cross-sectional area based on angular position about the bore.

[0017] At least one embodiment is disclosed, and variations, combinations, and / or modifications of the embodiment(s) and / or features of the embodiments) made by a person having ordinary skill in the art are within the scope of the disclosure. Alternative embodiments that result from combining, integrating, and / or omitting features of the embodiment(s) are also within the scope of the disclosure. Where numerical ranges or limitations are expressly stated, such express ranges or limitations should be understood to include iterative ranges or limitations of like magnitude falling within the expressly stated ranges or limitations (e.g., from about 1 to about 10 includes, 2, 3, 4, etc.; greater than 0.10 includes 0.11, 0.12, 0.13, etc.). For example, whenever a numerical range with a lower limit, Ri, and an upper limit, Ru, is disclosed, any number falling within the range is specifically disclosed. In particular, the following numbers within the range are specifically disclosed: R=Ri +k * (Ru-Ri), wherein k is a variable ranging from 1 percent to 100 percent with a 1 percent increment, i.e., k is 1 percent, 2 percent, 3 percent, 4 percent, 5 percent, ...50 percent, 51 percent, 52 percent, .. . , 95 percent, 96 percent, 95 percent, 98 percent, 99 percent, or 100 percent. Moreover, any numerical range defined by two R numbers as defined in the above is also specifically disclosed. Use of theterm "optionally" with respect to any element of a claim means that the element is required, or alternatively, the element is not required, both alternatives being within the scope of the claim. Use of broader terms such as comprises, includes, and having should be understood to provide support for narrower terms such as consisting of, consisting essentially of, and comprised substantially of. Accordingly, the scope of protection is not limited by the description set out above but is defined by the claims that follow, that scope including all equivalents of the subject matter of the claims. Each and every claim is incorporated as further disclosure into the specification and the claims are embodiment(s) of the present invention. Also, the phrases “at least one of A, B, and C” and “A and / or B and / or C” should each be interpreted to include only A, only B, only C, or any combination of A,B, and C.

Claims

CLAIMSWhat is claimed is:

1. A device for reducing the velocity of gases flowing therethrough, the device comprising: a tube having an inlet at one end, an outlet at an opposite end, and an inner surface; a circumferential first radial wall extending radially inward from the inner surface of the tube; a tubular flow divider protruding rearward from an inner portion of the first radial wall, an inner surface of the flow divider defining a bore extending through the tube from the inlet to the outlet, the flow divider diverting a portion of gases flowing past the flow divider along an outer surface of the flow divider and toward the first radial wall; a circumferential second radial wall extending radially inward from the inner surface of the tube, the second radial wall being located rearward of the first radial wall, an inner end of the second radial wall being spaced from the outer surface of the flow divider; a circumferential first longitudinal wall extending between the first and second radial walls and being spaced radially inward from the inner surface of the tube and spaced radially outward from the outer surface of the flow divider, the first longitudinal wall cooperating with the first radial wall, second radial wall, and the inner surface of the tube to form a circumferential first outer volume; a circumferential third radial wall extending radially inward from the inner surface of the tube, the third radial wall being located forward of the first radial wall; a circumferential second longitudinal wall spaced radially inward from the inner surface of the tube, the second longitudinal wall cooperating with the first radial wall, third radial wall, and the inner surface of the tube to form a circumferential second outer volume; an entrance port for allowing gases to flow into the first outer volume;a transfer port for allowing gases to flow from the first outer volume into the second outer volume; an exit port for allowing gases to flow from the second outer volume into the bore.

2. The device of claim 1, wherein sequential ports are angularly spaced from each about the bore.

3. The device of claim 1 , wherein the outer volumes have different cross-sectional shapes based on an angular position about the bore.

4. The device of claim 1, wherein the outer volumes have different cross-sectional sizes based on an angular position about the bore.

5. The device of claim 1, wherein the exit port is formed a nozzle.

6. The device of claim 1, wherein an axis of at least one of the longitudinal walls is offset from an axis of the tube.

7. The device of claim 1, wherein the entrance port is formed in the first longitudinal wall.

8. The device of claim 1, wherein the transfer port is formed in the first radial wall.

9. The device of claim 1, wherein the exit port is formed in the second longitudinal wall.

10. A device for reducing the velocity of gases flowing therethrough, the device comprising: a tube; an inner volume; a longitudinal wall defining at least one outer volume, an axis of the longitudinal wall being offset from an axis of the tube, thereby causing the outer volume to have a varying cross-sectional area based on angular position about the bore.

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