Retaining ring structure capable of uniformly distributing water film

Abstract

A check ring structure capable of evenly distributing water films relates to the field of deaerators and comprises a check ring body, the check ring body is at least composed of three water collecting rings and baffle rings with the same number as the water collecting rings, the adjacent water collecting rings and baffle rings form a water distribution unit, the lower end of the space where the inner wall of each water collecting ring is located is of a closed structure, and a water collecting cavity is formed. The lower end of the space between the outer wall of the water collecting ring and the inner wall of the baffle ring is of an opening structure to form a water distribution cavity, annularly-distributed drainage holes are formed in the lower end of the water collecting ring body, the deaerator inner wall is arranged outside the check ring body, and the check ring body is connected with the deaerator inner wall through a rotating mechanism. A rotating column is arranged at the center of the check ring body and fixedly welded to the check ring body, and the problem that water falls down along with gravity and is difficult to evenly distribute on a liquid vapor net after being subjected to preliminary deoxygenization is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of deaerators, in particular to a retaining ring structure capable of evenly distributing a water film. Background Art

[0002] A deaerator is a device designed to remove dissolved oxygen from a medium. In the water treatment industry, it's primarily used in boiler feedwater systems to remove dissolved oxygen from the water, preventing damage to boilers and other equipment caused by oxygen corrosion. When water is heated to a certain temperature, dissolved oxygen in the water precipitates and is discharged with the steam. Controlling the flow and pressure of the heating steam ensures that the dissolved oxygen in the water is fully removed. Reducing dissolved oxygen in the water reduces thermal resistance in the heat exchanger, improving heat transfer efficiency. Deoxygenated water is purer, facilitating the proper operation of subsequent water treatment processes and equipment.

[0003] For example, the Chinese authorized patent, "Rapid Film Deaerator," with publication number CNU, includes a deaerator body equipped with a deaerator water inlet pipe and steam inlet assembly. The bottom of the deaerator body is connected to a deaerator water tank, which contains a reboiling device. The top of the deaerator body is equipped with a steam-water separation exhaust device. The deaerator water inlet pipe is connected to several rapid film extruders. The deaerator water forms a multi-layer water film through the rapid film extruders, and a deaerator filler mesh is installed below the rapid film extruders. A water inlet pipe and film extruder pipe form a diversion pipeline, which diverts the deaerator water to the staggered rapid film extruders. The rapid film extruders quickly form a water film, and multiple layers of water film can be set up according to specific operating conditions to remove as much dissolved oxygen as possible during the initial deaeration stage.

[0004] Although the above-mentioned existing technology is equipped with a film lifter, the water film skirt that has undergone preliminary deoxygenation is relatively scattered, and the film lifter is difficult to concentrate the water film skirt. As the deoxygenation amount continues to increase, the water distribution effect is poor, thereby affecting the subsequent uniform distribution of the water film on the liquid-vapor network. Therefore, it does not meet the existing needs. In this regard, we propose a retaining ring structure that can evenly distribute the water film. Utility Model Content

[0005] The purpose of the utility model is to provide a retaining ring structure that can evenly distribute water film, so as to solve the problem in the above background technology that water is difficult to be evenly distributed on the liquid vapor network after falling by gravity after initial deoxygenation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a retaining ring structure that can evenly distribute water film, including a retaining ring main body, wherein the retaining ring main body is composed of at least three water collecting rings and the same number of retaining rings as the water collecting rings, and adjacent water collecting rings and retaining rings constitute a water distribution unit, and the lower end of the space where the inner wall of the water collecting ring is located is a closed structure, forming a water collecting cavity, and the lower end of the space between the outer wall of the water collecting ring and the inner wall of the retaining ring is an open structure, forming a water distribution cavity, and the lower end of the water collecting ring body is provided with annularly distributed drainage holes, the outside of the retaining ring main body is provided with a deaerator inner wall, and the retaining ring main body is connected to the deaerator inner wall by a rotating mechanism, and a rotating column is provided at the center position of the retaining ring main body, and the rotating column is welded and fixed to the retaining ring main body.

[0007] Preferably, the upper end of the retaining ring body is provided with four annularly distributed connecting arms, and the bottoms of the connecting arms are fixed to the upper end surfaces of the water collecting ring and the retaining ring by screws.

[0008] Preferably, the upper end surfaces of the water collecting ring and the retaining ring are on the same horizontal plane, and the lower end surface of the retaining ring is lower than the lower end surface of the water collecting ring.

[0009] Preferably, the number of drainage holes in the water collecting ring increases gradually from the inside to the outside.

[0010] Preferably, the rotating mechanism includes a connecting ring and a ball, the ball is embedded in the interior of the connecting ring in a ring shape and is rotatably connected to the connecting ring, the outer wall of the connecting ring is located in the annular groove of the inner wall of the deaerator, and the ball fits in the annular groove of the inner wall of the deaerator.

[0011] Preferably, a transmission mechanism is provided above the rotating column, a rotating shaft is rotatably installed inside the vertical tube of the transmission mechanism, the bottom of the rotating shaft is fixed to the rotating column, a driven bevel gear is fixedly installed on the upper end of the rotating shaft, a driving shaft is rotatably installed inside the horizontal tube of the transmission mechanism, one end of the driving shaft is fixedly installed with an active bevel gear meshing with the driven bevel gear, and a driving motor is provided at the other end of the driving shaft, and the driving motor is fixed to the inner wall of the deaerator.

[0012] Preferably, the outer wall of the retaining ring located on the outside is close to the inner wall of the deaerator.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model greatly enhances the separation efficiency of water and oxygen through the centrifugal force generated by rotation and the turbulence effect caused by the water flow hitting the retaining ring, which helps to remove dissolved oxygen in the water faster and more thoroughly. At the same time, the setting of the annular drain hole enables the discharged water to flow evenly along the side wall, avoiding the local water flow concentration or dead zone phenomenon that may occur in traditional deoxygenation methods, improving the overall performance of the deaerator, and utilizing the retaining ring to contact with the thrown water to reduce the direct impact of the water flow on the inner wall of the deaerator, thereby reducing energy consumption and equipment wear, and extending the service life of the equipment.

[0015] 2. The utility model realizes the rotational drive of the retaining ring body through the transmission mechanism. The rotation of the driving motor drives the driving shaft equipped with the active bevel gear to rotate. The meshing friction between the active bevel gear and the driven bevel gear drives the rotating shaft to rotate, and then the rotation of the retaining ring body is realized by the rotating column. When it is kept at a low speed, the water collecting chamber has a relatively closed structure, and it is difficult for the water to be discharged from the tiny drainage hole. It is used to temporarily store deoxygenated water. When it is kept at a high speed, the water layer begins to be affected by centrifugal force, and the centrifugal force causes the water to begin to be thrown out through the annular drainage hole at the lower end of the outer wall. The water flow after the impact is guided by the retaining ring and flows downward in a ring-shaped uniform manner along the side wall to form a uniform water film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 This is a top view of the upper end of the retaining ring body of the utility model;

[0019] Figure 4 This is a schematic diagram of the water distribution structure of the retaining ring main body of the utility model.

[0020] In the figure: 1. retaining ring body; 2. water collecting ring; 3. retaining ring; 4. connecting arm; 5. rotating column; 6. drainage hole; 7. water collecting chamber; 8. water distribution chamber; 9. connecting ring; 10. ball; 11. transmission mechanism; 12. rotating shaft; 13. driven bevel gear; 14. driving shaft; 15. driving bevel gear; 16. driving motor; 17. inner wall of deaerator. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4The utility model provides an embodiment: a retaining ring structure that can evenly distribute water film, including a retaining ring main body 1, the retaining ring main body 1 is composed of at least three water collecting rings 2 and the same number of retaining rings 3 as the water collecting rings 2, adjacent water collecting rings 2 and retaining rings 3 constitute a water distribution unit, the lower end of the space where the inner wall of the water collecting ring 2 is located is a closed structure, forming a water collecting cavity 7, the lower end of the space between the outer wall of the water collecting ring 2 and the inner wall of the retaining ring 3 is an open structure, forming a water distribution cavity 8, the lower end of the ring body of the water collecting ring 2 is provided with an annularly distributed drainage hole 6, the outside of the retaining ring main body 1 is provided with a deaerator inner wall 17, and the retaining ring main body 1 is connected to the deaerator inner wall 17 by a rotating mechanism, a rotating column 5 is provided at the center position of the retaining ring main body 1, and the rotating column 5 is welded and fixed to the retaining ring main body 1.

[0023] During use, the retaining ring body 1 is placed inside the deaerator through the gear transmission system and begins to rotate at a set speed. The water collection chamber 7 forms a relatively closed space for temporarily storing the initially deoxygenated water. The initially deoxygenated water enters the water collection chamber 7 from the top of the retaining ring body 1 and first accumulates in the closed space at the bottom. At this time, because the retaining ring body 1 has not yet reached a high-speed rotation state, the water is mainly affected by gravity, forming a water layer of a certain thickness at the bottom. As the speed of the retaining ring body 1 gradually increases, the water layer begins to be affected by centrifugal force. The centrifugal force causes the water layer to move toward the outer wall of the water collecting ring 2, forming a centripetal flow trend. At the same time, due to the high-speed rotation of the retaining ring body 1, the mutual collisions between water molecules are intensified, which helps to further remove the oxygen dissolved in the water. When the internal water volume increases to a certain level and reaches sufficient strength under the action of centrifugal force, the water begins to be thrown out through the annular drain hole 6 at the lower end of the outer wall, forming a strong water flow. The water ejected from the drain hole 6 hits the retaining ring 3 of the outer circle, which not only enhances the turbulence of the water flow, but also helps to further release the oxygen dissolved in the water. Subsequently, the water flow after the impact is guided by the retaining ring 3, flows downward in a ring-shaped uniformity along the side wall, and forms a uniform water film.

[0024] See also Figure 1 and Figure 3 The upper end of the retaining ring body 1 is provided with four annularly distributed connecting arms 4. The bottom of the connecting arm 4 is fixed to the upper end surface of the water collecting ring 2 and the retaining ring 3 by screws to ensure the firmness of the connection of each water distribution unit. In order to further improve the water collection effect, the upper end of the water distribution cavity 8 can be provided with a closed structure.

[0025] See also Figure 2 The upper end faces of the water collecting ring 2 and the baffle ring 3 are on the same horizontal plane, and the lower end face of the baffle ring 3 is lower than the lower end face of the water collecting ring 2. Since the lower end face of the baffle ring 3 is lower than the water collecting ring 2, the water will flow more easily along its surface evenly after hitting the baffle ring 3, forming a stable water film covering the inner wall of the deaerator. This uniform distribution is conducive to enhancing the deoxygenation effect.

[0026] See also Figure 4 The number of drainage holes 6 gradually increases from the inside to the outside of the water collecting ring 2. When the water flows from the inside to the outside of the water collecting ring 2, the increasing number of drainage holes 6 can more effectively disperse the pressure of the water flow, which helps to prevent the water flow from being excessively concentrated in a certain area of ​​the water collecting ring, thereby reducing the impact of the water flow on the water collecting ring and surrounding structures.

[0027] See also Figure 2 The rotating mechanism includes a connecting ring 9 and a ball 10. The ball 10 is annularly embedded in the interior of the connecting ring 9 and is rotatably connected to the connecting ring 9. The outer wall of the connecting ring 9 is located in the annular groove of the inner wall 17 of the deaerator. The ball 10 fits in the annular groove of the inner wall 17 of the deaerator. A transmission mechanism 11 is provided above the rotating column 5. A rotating shaft 12 is rotatably installed inside the vertical tube of the transmission mechanism 11. The bottom of the rotating shaft 12 is fixed to the rotating column 5. A driven bevel gear 13 is fixedly installed on the upper end of the rotating shaft 12. A driving shaft 14 is rotatably installed inside the horizontal tube of the transmission mechanism 11. One end of the driving shaft 14 is fixedly installed with an active bevel gear 15 meshing with the driven bevel gear 13. The other end of the driving shaft 14 A driving motor 16 is provided at the end, and the driving motor 16 is fixed to the inner wall 17 of the deaerator. The rotation of the driving motor 16 drives the driving shaft 14 equipped with the active bevel gear 15 to rotate, and the rotating shaft 12 is driven to rotate under the meshing friction between the active bevel gear 15 and the driven bevel gear 13, and then the rotation of the retaining ring body 1 is realized through the rotating column 5. It is kept in a low-speed state, and the water collecting chamber 7 has a relatively closed structure. It is difficult for the water to be discharged from the tiny drainage hole 6, which is used to temporarily store deoxygenated water. It is kept in a high-speed state. The water layer begins to be affected by centrifugal force, and the centrifugal force causes the water to begin to be thrown out through the annular drainage hole 6 at the lower end of the outer wall. The water flow after the impact is guided by the retaining ring 3 and flows downward in a ring-shaped uniform manner along the side wall.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A retaining ring structure capable of evenly distributing a water film, comprising a retaining ring body (1), characterized in that: The retaining ring body (1) is composed of at least three water collecting rings (2) and retaining rings (3) of the same number as the water collecting rings (2). Adjacent water collecting rings (2) and retaining rings (3) constitute a water distribution unit. The lower end of the space where the inner wall of the water collecting ring (2) is located is a closed structure, forming a water collecting cavity (7). The lower end of the space between the outer wall of the water collecting ring (2) and the inner wall of the retaining ring (3) is an open structure, forming a water distribution cavity (8). The lower end of the ring body of the water collecting ring (2) is provided with an annularly distributed drainage hole (6). The outside of the retaining ring body (1) is provided with a deaerator inner wall (17), and the retaining ring body (1) is connected to the deaerator inner wall (17) through a rotating mechanism. A rotating column (5) is provided at the center position of the retaining ring body (1), and the rotating column (5) is welded and fixed to the retaining ring body (1).

2. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: The upper end of the retaining ring body (1) is provided with four annularly distributed connecting arms (4), and the bottom of the connecting arms (4) is fixed to the upper end surfaces of the water collecting ring (2) and the retaining ring (3) by screws.

3. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: The upper end surfaces of the water collecting ring (2) and the retaining ring (3) are located on the same horizontal plane, and the lower end surface of the retaining ring (3) is lower than the lower end surface of the water collecting ring (2).

4. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: The number of drainage holes (6) gradually increases from the inside to the outside of the water collecting ring (2).

5. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: The rotating mechanism includes a connecting ring (9) and a ball (10). The ball (10) is annularly embedded in the interior of the connecting ring (9) and is rotatably connected to the connecting ring (9). The outer wall of the connecting ring (9) is located in an annular groove of the inner wall (17) of the deaerator, and the ball (10) is in contact with the annular groove of the inner wall (17) of the deaerator.

6. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: A transmission mechanism (11) is provided above the rotating column (5); a rotating shaft (12) is rotatably mounted inside the vertical tube of the transmission mechanism (11); the bottom of the rotating shaft (12) is fixed to the rotating column (5); a driven bevel gear (13) is fixedly mounted on the upper end of the rotating shaft (12); a driving shaft (14) is rotatably mounted inside the horizontal tube of the transmission mechanism (11); a driving bevel gear (15) meshingly connected to the driven bevel gear (13) is fixedly mounted on one end of the driving shaft (14); a driving motor (16) is provided at the other end of the driving shaft (14); and the driving motor (16) is fixed to the inner wall (17) of the deaerator.

7. The retaining ring structure capable of evenly distributing a water film according to claim 1, characterized in that: The outer wall of the retaining ring (3) located on the outside is close to the inner wall (17) of the deaerator.

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