Gas distribution device

Abstract

The utility model provides a gas distribution device which comprises a pipe body, a first ball seat is arranged in the pipe body, and a first through hole serving as a branch part of a circulation path in the pipe body is formed in the center of the first ball seat, and a second through hole serving as a branch part of a circulation path in the pipe body is formed in the center of the first ball seat. The check ball is arranged in the pipe body and located between the first ball seat and the distribution net, and the diameter of the check ball is larger than the diameter of the first through hole and the diameter of meshes of the distribution net and smaller than the inner diameter of the pipe body; and the check ball can be partially clamped into the first through hole, so that the circulation path of the pipe body is blocked or conducted when the check ball is clamped into or separated from the first through hole. Based on the technical scheme, non-return of the solution is achieved through the ball seat and the non-return ball, the parts of the whole device are all of rigid structures, airflow impact can be effectively dealt with, and on the basis that gas dispersion is achieved, non-return of the solution is achieved. The problems that a rubber sleeve adopted in the prior art is short in service life and prone to being damaged, and consequently a pipeline is blocked are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of complex iron desulfurization, in particular to a gas distribution device of a complex iron desulfurization oxidation tower. Background Art

[0002] In the complex desulfurization process, iron ions are used as catalysts, and high-valent iron ions react with hydrogen sulfide to generate sulfur. After the high-valent iron ions react, they are converted into low-valent iron ions. After the iron-rich liquid enters the oxidation tower, the oxidation tower is blown by a blower, and the oxygen in the air is used to oxidize the low-valent iron ions and convert them into high-valent iron ions, thereby achieving the purpose of reusing the solution. During the oxidation process, oxygen needs to be fully in contact with the solution to improve the oxidation efficiency.

[0003] At present, the oxidation tower adopts "one tube with multiple branches plus rubber sleeve" to achieve the purpose of air distribution. Specifically, a main line is used from the top of the oxidation tower to the middle and lower part of the oxidation tower, and multiple branch thin tubes of different lengths are installed at the end of the main line. A rubber sleeve with small holes is installed at the end of the branch pipe. When not working, the rubber sleeve shrinks and closes the small holes, and the solution cannot pass through, achieving the purpose of preventing the solution from flowing into the air pipeline; when working, the air blown in will inflate the rubber sleeve, and the rubber sleeve will expand and open the small holes to allow air to pass through, achieving the purpose of subdividing the air.

[0004] However, since the rubber sleeve is easy to age, and the aging speed is faster in a weak alkaline environment, its service life is short and its reliability is not high. At the same time, since the blast air flow rate may be adjusted according to the specific situation, the air flow rate is sometimes large and sometimes small; when the air flow rate is large, it is easy to cause and accelerate the rupture of the rubber sleeve. After the rubber sleeve is broken, the residual flow of the rubber sleeve in the solution is easy to block the machine pump and the throttle valve, and it will also cause the failure of the check function. Utility Model Content

[0005] In order to solve the problems of short service life and poor reliability of the rubber sleeve type air distributor used in the prior art, the utility model provides a gas distribution device.

[0006] The utility model provides a gas distribution device, which comprises:

[0007] A pipe body, one end of which is used to connect to the gas transmission pipe, and the other end of which is covered with a distribution network, a first ball seat is arranged inside the pipe body, and a first through hole serving as a part of the flow path inside the pipe body is arranged at the center of the first ball seat; and

[0008] a check ball, which is arranged inside the tube body and located between the first ball seat and the distribution net, wherein the diameter of the check ball is larger than the diameter of the first through hole and the mesh of the distribution net and smaller than the inner diameter of the tube body;

[0009] The check ball can be partially inserted into the first through hole, so as to block or open the flow path of the tube body when inserted into or released from the first through hole.

[0010] In one embodiment, the radius of the check ball is greater than the straight-line distance from the edge of the first through hole to the inner wall of the tube body along the radial direction of the tube body.

[0011] In one embodiment, a second ball seat having a hollow structure is further provided inside the tube body and is located between the first ball seat and the distribution network, and the hollow structure includes a second through hole located at the center of the second ball seat;

[0012] Wherein, the check ball is located between the first ball seat and the second ball seat, and its diameter is larger than the second through hole.

[0013] In one embodiment, the second ball seat includes a plurality of baffles extending radially inward from the inner wall of the tube body, the plurality of baffles are spaced apart along the circumference of the tube body, and the ends of the plurality of baffles are close to the center of the second ball seat and surround the second through hole.

[0014] In one embodiment, the tube body includes a first tube body portion and a second tube body portion that can be detachably connected to each other, the first ball seat is arranged inside the first tube body portion, and the second ball seat is arranged inside the second tube body portion.

[0015] In one embodiment, a female thread is disposed at the end of the first tube body portion, and a male thread is disposed at the end of the second tube body portion, and the female thread and the male thread can be threadedly matched to connect the first tube body portion and the second tube body portion.

[0016] In one embodiment, a straight-line distance between the first ball seat and the second ball seat in the axial direction of the tube body is not greater than twice the diameter of the check ball.

[0017] In one embodiment, the pipe body is connected to the gas pipeline in a vertical state, and the pipe opening at one end where the distribution network is located faces upward or downward;

[0018] When the density of the check ball is less than the density of the corresponding solution, the end of the distribution network is facing downward; when the density of the check ball is not less than the density of the corresponding solution, the end of the distribution network is facing upward.

[0019] In one embodiment, the distribution net is constructed as a spherical cover structure, the inner diameter of the cover structure is larger than the inner diameter of the tube body, and the meshes of the distribution net are evenly distributed on the surface of the cover structure.

[0020] In one embodiment, a chamfered structure is provided at an edge of the opening of the first through hole close to one side of the distribution network.

[0021] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.

[0022] The gas distribution device provided by the utility model has at least the following beneficial effects compared with the prior art:

[0023] The utility model discloses a gas distribution device, which utilizes a ball seat and a check ball to realize the check of the solution, and the components of the entire device all adopt a rigid structure, which can effectively cope with the impact of airflow. On the basis of realizing gas dispersion, it solves the problems of the rubber sleeve used in the prior art, such as the short service life and easy breakage leading to pipeline blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] Figure 1 The overall structural diagram of the gas distribution device of the utility model is shown;

[0026] Figure 2 Shows Figure 1 Schematic diagram of the structure of the AA section.

[0027] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0028] Reference numerals:

[0029] 1-tube body, 11-first tube body portion, 12-second tube body portion, 2-check ball, 3-distribution net, 31-mesh, 4-first ball seat, 41-first through hole, 5-second ball seat, 51-second through hole, 52-baffle. DETAILED DESCRIPTION

[0030] The utility model will be further described below in conjunction with the accompanying drawings.

[0031] An embodiment of the utility model provides a gas distribution device, which includes:

[0032] A pipe body 1, one end of which is used to connect to the gas pipe, and the other end of which is covered with a distribution network 3, a first ball seat 4 is provided inside the pipe body 1, and a first through hole 41 serving as a part of the flow path inside the pipe body 1 is provided at the center of the first ball seat 4; and

[0033] The check ball 2 is arranged inside the tube body 1 and between the first ball seat 4 and the distribution net 3. The diameter of the check ball 2 is larger than the diameter of the first through hole 41 and the mesh 31 of the distribution net 3 and smaller than the inner diameter of the tube body 1.

[0034] The check ball 2 can be partially inserted into the first through hole 41 , so as to block or open the flow path of the pipe body 1 when inserted into or separated from the first through hole 41 .

[0035] Specifically, as mentioned in the background technology section, the main function of the gas distribution device of the utility model is to achieve full contact between the gas and the corresponding solution and increase the contact area between the two; at the same time, the gas distribution device of the utility model is also intended to solve the life and reliability problems existing in the existing rubber sleeve solution.

[0036] As shown in the attached picture Figure 1 As shown, the gas distribution device of the utility model mainly includes a pipe body 1 and a check ball 2. The pipe body 1 is used to be connected to the output end of the gas transmission pipe. A distribution net 3 is provided at the end of the pipe body 1. The distribution net 3 is used to disperse the gas output from the pipe body 1, that is, the gas passes through a plurality of meshes 31 on the distribution net 3 to form a plurality of airflows for output, thereby achieving airflow dispersion. The check ball 2 is arranged inside the pipe body 1, between the first ball seat 4 and the distribution net 3, and the check ball can move between the first ball seat 4 and the distribution net 3. The first ball seat 4 is provided with a first through hole 41 (specifically a round hole), and the check ball 2 can be partially inserted into the first through hole 41, thereby closing the first through hole 41, thereby closing the flow path of the pipe body 1, and achieving check.

[0037] When used specifically, oxygen (or other gases) enters the pipe body 1 of the gas distribution device through the gas pipe. Driven by the pressure of the gas, the check ball 2 is pushed away from the first through hole 41 of the first ball seat 4, that is, the check ball 2 is separated from the first through hole 41, and the oxygen can reach the distribution network 3 through the first through hole 41, and then dispersed through the mesh 31 of the distribution network 3 and contacted with the corresponding solution (for example, iron-rich solution). When the oxygen stops being output, the thrust applied to the check ball 2 disappears, and the solution tends to flow toward the pipe body 1 and the inside of the gas pipe, while the check ball 2 is pushed in the opposite direction to the first ball seat 4 and re-inserted into the first through hole 41, thereby closing the flow path of the pipe body 1 and preventing the solution from flowing back into the gas pipe.

[0038] In addition, each component of the gas distribution device of the utility model is a rigid structure made of corrosion-resistant materials, such as stainless steel, which is fully adaptable to long-term use in various solution environments and the impact of airflow.

[0039] It can be seen that the gas distribution device proposed in the utility model utilizes a ball seat and a check ball 2 to realize the check of the solution, and the components of the entire device all adopt a rigid structure, which can effectively cope with the impact of airflow. On the basis of realizing gas dispersion, it solves the problem of short service life and easy breakage of the rubber sleeve used in the prior art, which leads to pipeline blockage.

[0040] Preferably, as shown in the accompanying drawings Figure 1 As shown, a chamfered structure is provided at the edge of the opening of the first through hole 41 close to the distribution network 3 , which can increase the contact area between the first through hole 41 and the check ball 2 and improve the matching stability between the check ball 2 and the first through hole 41 .

[0041] In one embodiment, the radius of the check ball 2 is greater than the straight-line distance from the edge of the first through hole 41 to the inner wall of the tube body 1 along the radial direction of the tube body 1 .

[0042] Specifically, the movement trajectory of the check ball 2 cannot be controlled during the process of moving to the first through hole 41, so it may not be able to directly align with the first through hole 41, and therefore there may be a problem that the check ball 2 cannot be correctly inserted into the first through hole 41. The purpose of this embodiment is to ensure that the check ball 2 can accurately insert into the first through hole 41. Specifically, the radius of the check ball 2 is smaller than the straight-line distance from the edge of the first through hole 41 along the radial direction of the tube body 1 to the inner wall of the tube body 1, that is, if the radius of the check ball 2 is smaller than the difference between the radius of the tube body 1 and the radius of the first through hole 41, then when the check ball 2 reaches the first ball seat 4, it is very likely that it will directly contact the surface of the first ball seat 4 and be supported, so that it will be pushed by the solution and pressed against the surface of the first ball seat 4 instead of being inserted into the first through hole 41, which results in the check ball 2 being unable to accurately close the first through hole 41, and its non-return function is imperfect.

[0043] Therefore, the present embodiment proposes a further improvement, such that the radius of the check ball 2 is larger than the difference between the radius of the tube body 1 and the radius of the first through hole 41. Even if there is a certain deviation between the check ball 2 and the center of the first through hole 41 during the movement, it can be ensured that the front end of the check ball 2 always corresponds to the area where the first through hole 41 is located, and when the check ball 2 reaches the first ball seat 4, it cannot contact the surface of the first ball seat 4 and be supported, thereby ensuring that the check ball 2 can be accurately inserted into the first through hole 41.

[0044] In one embodiment, a second ball seat 5 constructed as a hollow structure is also provided inside the tube body 1, which is located between the first ball seat 4 and the distribution network 3, and the hollow structure includes a second through hole 51 located at the center of the second ball seat 5; wherein the check ball 2 is located between the first ball seat 4 and the second ball seat 5, and its diameter is larger than the second through hole 51.

[0045] Specifically, as shown in the attached figure Figure 1As shown, a second ball seat 5 is further provided in the tube body 1, so that the first ball seat 4 and the second ball seat 5 are used to limit the check ball 2 in both directions. The second ball seat 5 replaces the limiting function of the distribution network 3 on the check ball 2, thereby freeing the distribution network 3, so that the distribution network 3 can be flexibly set to any shape and structure according to actual conditions. The hollow structure of the second ball seat 5 can also ensure the free flow of gas, and the second through hole 51 in the center can be used to cooperate with the check ball 2 to ensure the stable position of the check ball 2.

[0046] In one embodiment, the second ball seat 5 includes a plurality of baffles 52 extending radially inward from the inner wall of the tube body 1 , the baffles 52 are distributed at intervals along the circumference of the tube body 1 , and the ends of the baffles 52 are close to the center of the second ball seat 5 and surround a second through hole 51 .

[0047] Specifically, as shown in the attached figure Figure 2 As shown, the second ball seat 5 is composed of multiple baffles 52, which can not only realize the limiting function of the check ball 2, but also maximize the area for gas circulation, that is, ensure that the hollow part of the hollow structure has a large enough area to ensure the circulation of airflow.

[0048] In one embodiment, the tube body 1 includes a first tube body portion 11 and a second tube body portion 12 which are detachably connected to each other, the first ball seat 4 is disposed inside the first tube body portion 11 , and the second ball seat 5 is disposed inside the second tube body portion 12 .

[0049] Optionally, a female thread is provided at the end of the first tube body portion 11 , and a male thread is provided at the end of the second tube body portion 12 . The female thread and the male thread can be threadedly matched to connect the first tube body portion 11 and the second tube body portion 12 .

[0050] Specifically, as shown in the attached figure Figure 1 As shown, the tube body 1 is divided into two parts, namely, the first tube body part 11 and the second tube body part 12, and is provided with a first ball seat 4 and a second ball seat 5 respectively. The purpose of doing so is, on the one hand, to facilitate the installation of the check ball 2; on the other hand, the split structure facilitates the manufacturing and molding of the components. The first tube body part 11 and the second tube body part 12 can be directly connected by male and female threads, which is convenient for connection and disassembly, and is convenient for installation and maintenance.

[0051] In one embodiment, the straight-line distance between the first ball seat 4 and the second ball seat 5 in the axial direction of the tube body 1 is not greater than twice the diameter of the check ball 2 .

[0052] Specifically, as shown in the attached figure Figure 1As shown, since the check ball 2 will move between the first ball seat 4 and the second ball seat 5 under the action of external force, the distance between the first ball seat 4 and the second ball seat 5 must first meet the movement of the check ball 2, that is, the distance between the two ball seats must first be greater than the diameter of the check ball 2. However, since the movement of the check ball 2 has a certain process, if the distance between the first ball seat 4 and the second ball seat 5 is too large, the movement process of the check ball 2 will be longer. When the check ball 2 needs to be stopped, the check ball 2 cannot quickly move to the first ball seat 4 and close the first through hole 41, which may cause part of the solution to enter the gas pipeline through the first through hole 41. Therefore, the straight-line distance between the first ball seat 4 and the second ball seat 5 in the axial direction of the tube body 1 is not greater than twice the diameter of the check ball 2, which can ensure the normal movement of the check ball 2 and prevent its movement process from being too long.

[0053] In one embodiment, the pipe body 1 is connected to the gas pipe in a vertical state, and the end where the distribution network 3 is located faces upward or downward; when the density of the check ball 2 is less than the density of the corresponding solution, the end where the distribution network 3 is located faces downward; when the density of the check ball 2 is not less than the density of the corresponding solution, the end where the distribution network 3 is located faces upward.

[0054] Specifically, it is mentioned above that after the gas output stops, the check ball 2 will be pushed back to close the first through hole 41 by the external force of the solution flow, and in actual application, it is also necessary to consider that the solution will generate buoyancy on the check ball 2. Therefore, in order to ensure that the check ball 2 can fall back smoothly, the tube body 1 is first arranged vertically, and the check ball 2 relies on gravity, the buoyancy of the solution and the thrust of the solution to fall back, which is specifically divided into the following two situations:

[0055] When the end of the tube body 1 where the distribution net 3 is located is facing upward, the return of the check ball 2 is actually a vertical downward movement, so it is mainly achieved by gravity (plus part of the thrust generated by the flow of the solution), and at this time it is necessary to avoid the influence of the buoyancy of the solution, so the density of the check ball 2 needs to be at least not less than the density of the solution, preferably slightly greater than the density of the solution. When the end of the tube body 1 where the distribution net 3 is located is facing downward, the return of the check ball 2 is actually a vertical upward movement, which is mainly achieved by the buoyancy of the solution (plus part of the thrust generated by the flow of the solution), and at this time it is necessary to avoid the influence of gravity, so the density of the check ball 2 needs to be less than the density of the solution, preferably slightly less than the density of the solution.

[0056] The utility model coordinates the setting orientation of the tube body 1 based on the density relationship, so that the check ball 2 can be reset without setting other reset mechanisms (such as springs). In addition, the above is mainly an explanation of the relevant principles. In actual application, the density relationship between the solution and the check ball 2 is first determined, and then the specific setting posture of the tube body 1 is determined, that is, whether the end where the distribution network 3 is located is facing up or down.

[0057] In one embodiment, the distribution net 3 is constructed as a spherical cover structure, the inner diameter of the cover structure is larger than the inner diameter of the tube body 1, and the meshes 31 of the distribution net 3 are evenly distributed on the surface of the cover structure.

[0058] Specifically, as shown in the attached figure Figure 1 As shown, the overall shape of the distribution network 3 is a spherical cover structure, and its function is to maximize the volume of the internal space and have a larger surface area under the condition of a certain volume, so that enough mesh holes 31 can be set so that the airflow can be dispersed to the greatest extent.

[0059] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0060] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A gas distribution device, characterized in that: include: A pipe body, one end of which is used to connect to the gas transmission pipe, and the other end of which is covered with a distribution network, a first ball seat is arranged inside the pipe body, and a first through hole serving as a part of the flow path inside the pipe body is arranged at the center of the first ball seat; and a check ball, which is arranged inside the tube body and located between the first ball seat and the distribution net, wherein the diameter of the check ball is larger than the diameter of the first through hole and the mesh of the distribution net and smaller than the inner diameter of the tube body; The check ball can be partially inserted into the first through hole, so as to block or open the flow path of the tube body when inserted into or released from the first through hole.

2. The gas distribution device according to claim 1, characterized in that: The radius of the check ball is greater than the straight-line distance from the edge of the first through hole to the inner wall of the tube body along the radial direction of the tube body.

3. The gas distribution device according to claim 1, characterized in that: A second ball seat with a hollow structure is also provided inside the tube body and is located between the first ball seat and the distribution network. The hollow structure includes a second through hole located at the center of the second ball seat. Wherein, the check ball is located between the first ball seat and the second ball seat, and its diameter is larger than the second through hole.

4. The gas distribution device according to claim 3, characterized in that: The second ball seat includes a plurality of baffles extending radially inward from the inner wall of the tube body, the plurality of baffles are spaced apart along the circumference of the tube body, and the ends of the plurality of baffles are close to the center of the second ball seat and surround the second through hole.

5. The gas distribution device according to claim 3, characterized in that: The tube body includes a first tube body portion and a second tube body portion which can be detachably connected to each other, the first ball seat is arranged inside the first tube body portion, and the second ball seat is arranged inside the second tube body portion.

6. The gas distribution device according to claim 5, characterized in that: The end of the first tube body portion is provided with a female thread, and the end of the second tube body portion is provided with a male thread. The female thread and the male thread can be threadedly matched to connect the first tube body portion and the second tube body portion.

7. The gas distribution device according to claim 3, characterized in that: A straight-line distance between the first ball seat and the second ball seat in the axial direction of the tube body is not greater than twice the diameter of the check ball.

8. The gas distribution device according to claim 1, characterized in that: The pipe body is connected to the gas pipeline in a vertical state, and the pipe opening at one end where the distribution network is located faces upward or downward; When the density of the check ball is less than the density of the corresponding solution, the end of the distribution network is facing downward; when the density of the check ball is not less than the density of the corresponding solution, the end of the distribution network is facing upward.

9. The gas distribution device according to any one of claims 1 to 8, characterized in that: The distribution net is constructed as a spherical cover structure, the inner diameter of the cover structure is larger than the inner diameter of the tube body, and the meshes of the distribution net are evenly distributed on the surface of the cover structure.

10. The gas distribution device according to any one of claims 1 to 8, characterized in that: A chamfered structure is provided at the edge of the opening of the first through hole close to one side of the distribution network.

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