Rotation-stopping exhaust device for cooling tower
By designing an anti-vortex venting device and utilizing the venting valve and filter screen structure, the problems of vortex and air bubbles during the cooling tower water discharge process were solved, achieving water flow stability and cleanliness, and ensuring the normal operation of the cooling tower.
Patent Information
- Application Number
- CN202520156255.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The vortex generated during the water discharge process in the cooling tower causes air to enter the water flow, forming bubbles. Traditional anti-vortex plates have limited effectiveness and have failed to effectively solve the bubble problem.
Design a non-rotating venting device that includes a shell, a drain pipe, a filter screen, a drain pipe, and a conical tube. The device uses an venting valve to expel air from the water flow and a filter screen to intercept impurities, reducing the entry of air bubbles and impurities.
It effectively suppresses vortices, reduces air pressure, improves water flow quality, prevents bubbles and impurities from entering the cooling tower, and ensures normal operation.
Smart Images
Figure CN223841029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust technology, and in particular to an anti-rotation exhaust device for cooling towers. Background Technology
[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere to lower the water temperature. Its cooling effect is achieved by the heat exchange between water and air flow to generate steam. The steam evaporates and carries away the heat, thus dissipating the waste heat generated in industrial processes or refrigeration and air conditioning systems to lower the water temperature and ensure the normal operation of the system. The device is generally barrel-shaped, hence the name cooling tower.
[0003] During the process of water being discharged from a cooling tower, the Earth's rotation causes vortices to form as the water flows. These vortices cause the center of the water to become concave, allowing air to enter the water flow. This results in air bubbles in the water during the return process. Traditional cooling towers reduce the size of the vortices by installing anti-vortex plates at the discharge end, but air bubbles still exist in the water flow during actual use. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] The purpose of this utility model is to address the technical problems existing in the background art. This utility model proposes an anti-vortex exhaust device for cooling towers. This utility model can effectively improve the suppression of vortices generated during the water discharge process of cooling towers. At the same time, this device utilizes the effect of hydrodynamics to reduce the air pressure inside the exhaust shell, thereby facilitating the rapid separation of air bubbles from the water flow.
[0006] This utility model proposes an anti-rotation exhaust device for cooling towers, including a shell, a drain pipe that is connected through the side of the shell, and a filter screen that is connected to one end of the drain pipe near the shell.
[0007] The other end of the drain pipe is connected to a drain pipe. One end of the drain pipe is sealed with a flange cap. The other end of the drain pipe is equipped with a conical pipe. The other end of the conical pipe, away from the drain pipe, is connected to a connecting pipe with a diameter smaller than the drain pipe. An air vent valve is connected through the top of the outer arc surface of the drain pipe. The air vent valve vents towards the outside of the drain pipe.
[0008] Preferably, the housing is L-shaped, and the drain pipe is connected through the vertical end of the L-shape of the housing, and the drain pipe extends into the inner cavity of the housing.
[0009] Preferably, the L-shaped vertical end of the housing is provided with a recessed groove, which is located below the filter screen, and the filter screen is located at the end where the drain pipe passes through the inner wall of the housing cavity.
[0010] Preferably, there are multiple sets of housings and drain pipes, and the multiple sets of housings and drain pipes are in a one-to-one correspondence. The end of each set of drain pipes away from the housing is connected to the outlet pipe.
[0011] Preferably, the conical tube is hollow inside and has a flat bottom.
[0012] In summary, this utility model has at least one of the following beneficial effects:
[0013] During use, this device, through the combination of an exhaust valve and a water outlet pipe, can expel the air carried in the water flow from the upper part, thereby avoiding problems such as air bubbles in the subsequent water flow and preventing air resistance effects inside the cooling tower. At the same time, the filter structure of this device can intercept impurities in the circulating water inside the shell, thereby preventing impurities from entering the circulation. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a front view of an embodiment of the anti-rotation exhaust device for a cooling tower according to the present invention;
[0016] Figure 2 This is a schematic diagram of the water outlet pipe in a cooling tower anti-rotation venting device according to the present invention;
[0017] Reference numerals: 1. Housing; 2. Air vent; 3. Filter screen; 4. Drain pipe; 5. Outlet pipe. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below. Example
[0019] like Figure 1-2As shown, in order to solve the existing problems in this embodiment, based on the same concept as the above embodiment one, the anti-rotation exhaust device for cooling towers also includes an improved solution: including a shell 1, a drain pipe 4 is connected through the side of the shell 1, a filter screen 3 is connected to one end of the drain pipe 4 near the shell 1, a groove is provided at the bottom of the inner wall of the shell 1, the groove is located below the filter screen 3, and the filter screen 3 is located on the side of the inner wall of the shell 1.
[0020] The other end of the drain pipe 4 is connected to the outlet pipe 5. Several housings 1 are connected to the side of the outlet pipe 5 and combined with the drain pipe 4. One end of the outlet pipe 5 is sealed with a flange end cap. The other end of the outlet pipe 5 is provided with a variable cone tube. The variable cone tube is hollow inside and has a flat bottom. The other end of the variable cone tube away from the outlet pipe 5 is connected to a connecting pipe with a diameter smaller than that of the outlet pipe 5. An air vent valve 2 is connected through the top of the outer arc surface of the outlet pipe 5. The air vent valve 2 exhausts towards the outside of the outlet pipe 5.
[0021] When water is discharged from the cooling tower, it first enters the shell 1 and then falls into the groove. This way, the water falls from a high point to a low point to distribute it evenly. When the water reaches the overflow height in the groove (that is, when it reaches the height of the drain pipe 4), the water flows into the outlet pipe 5 through the drain pipe 4. At this time, the water entering the outlet pipe 5 will carry air with it and finally be discharged into the connecting pipe through the conical pipe.
[0022] The above-mentioned improvement scheme reduces the number of parts used in the anti-rotation venting structure in the cooling tower circulation, while still achieving the effect of anti-rotation venting of cooling tower return water. The variable cone tube ensures that the water flow inside the outlet pipe 5 can be emptied, and the vent valve 2 at the top of the outlet pipe 5 can automatically discharge the air inside the outlet pipe 5 to the outside, avoiding the air sealing effect.
[0023] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A non-rotating exhaust device for a cooling tower, characterized in that, Includes a shell (1), a drain pipe (4) is connected through the side of the shell (1), and a filter screen (3) is connected to the end of the drain pipe (4) near the shell (1). The other end of the drain pipe (4) is connected to the outlet pipe (5). One end of the outlet pipe (5) is sealed with a flange end cap. The other end of the outlet pipe (5) is provided with a variable cone pipe. The other end of the variable cone pipe away from the outlet pipe (5) is connected to a connecting pipe with a diameter smaller than that of the outlet pipe (5). The top of the outer arc surface of the outlet pipe (5) is connected to an air vent valve (2). The air vent valve (2) is vented towards the outside of the outlet pipe (5).
2. The anti-rotation exhaust device for a cooling tower according to claim 1, characterized in that, The housing (1) is L-shaped, and the drain pipe (4) is connected through the vertical end of the L-shape of the housing (1), and the drain pipe (4) extends into the inner cavity of the housing (1).
3. The anti-rotation exhaust device for a cooling tower according to claim 2, characterized in that, The L-shaped vertical end of the housing (1) is provided with a recessed groove, which is located below the filter screen (3). The filter screen (3) is located at one end of the drain pipe (4) that penetrates the inner wall of the housing (1).
4. The anti-rotation exhaust device for a cooling tower according to claim 1, characterized in that, The shell (1) and the drain pipe (4) are multiple sets, and the multiple sets of shell (1) and drain pipe (4) are in a one-to-one correspondence. The end of the multiple sets of drain pipe (4) away from the shell (1) is connected to the outlet pipe (5).
5. The anti-rotation exhaust device for a cooling tower according to claim 1, characterized in that, The variable-center conical tube is hollow inside and has a flat bottom.