Self-flowing type bubble eliminator
By breaking up air bubbles in seawater through the multi-layer filter structure of the self-flowing bubble eliminator, the problems of pump vibration and insufficient cooling caused by air bubbles are solved, ensuring the normal operation of ship equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-10
AI Technical Summary
Air bubbles carried in seawater can cause pump vibration and reduce cooling water volume, affecting the normal operation of ship equipment.
It adopts a self-flowing bubble eliminator, including a defoaming chamber, an inlet pipe, an outlet pipe, and a multi-layer filter screen structure. By shearing and breaking bubbles, it reduces the amount of bubbles in seawater and ensures that the pump delivers sufficient water to the cooling pipe.
This effectively prevented pump body vibration, ensured sufficient cooling of the equipment, and guaranteed the normal operation of the ship.
Smart Images
Figure CN224105597U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to defoaming technical field, especially a self-flowing bubble eliminator. BACKGROUND
[0002] The equipment on the ship often relies on seawater circulation to realize cooling. The sea chest is the entrance of seawater into the ship system, responsible for sucking seawater, and then the pump body pressurizes and delivers seawater to the cooling pipeline of the equipment, so that the seawater can cool the equipment. When the air in the suction inlet of the sea chest, the air will form bubbles and enter the ship system after mixing with seawater. The seawater carrying a large amount of bubbles will impact the impeller of the pump body, causing abnormal vibration of the pump body, and excessive bubbles will reduce the amount of water delivered by the pump body into the cooling pipeline, causing the equipment to be difficult to obtain sufficient cooling, thereby affecting the normal operation of the ship. SUMMARY
[0003] The utility model aims at at least solves one of the technical problems existing in the prior art. For this purpose, the utility model provides a self-flowing bubble eliminator, which can reduce the amount of bubbles in seawater, not only avoiding vibration of the pump body, but also enabling the equipment to obtain sufficient cooling, thereby ensuring the normal operation of the ship.
[0004] According to the self-flowing bubble eliminator of the utility model embodiment, the top of the defoaming bin is provided with an exhaust port, the inner cavity of the defoaming bin is communicated with the atmosphere through the exhaust port, so that the gas in the defoaming bin can be discharged through the exhaust port; the water outlet end of the water inlet pipe is connected with the bottom wall of the defoaming bin, the water inlet pipe is communicated with the inner cavity of the defoaming bin, and the water inlet end of the water inlet pipe is used for being communicated with the sea chest; the water inlet end of the water outlet pipe is connected with the defoaming bin, the water outlet pipe is communicated with the inner cavity of the defoaming bin, and the water outlet end of the water outlet pipe is used for being communicated with the pump body, so that seawater flows into the water inlet pipe, the defoaming bin and the water outlet pipe in turn; the first filter screen cylinder is arranged in the defoaming bin and connected with the bottom wall of the defoaming bin, a gap is left between the first filter screen cylinder and the top of the defoaming bin, and the water outlet end of the water inlet pipe is arranged in the first filter screen cylinder, so that the seawater flowing out of the water inlet pipe first flows into the first filter screen cylinder, and the first filter screen cylinder is used for breaking the bubbles in the seawater.
[0005] At least has the following beneficial effects:
[0006] When the pump body is started, seawater at the sea gate flows into the water inlet pipe, the defoaming chamber and the water outlet pipe in sequence. Since the water outlet end of the water inlet pipe is arranged in the first filter screen cylinder, seawater flowing out of the water inlet pipe first flows into the first filter screen cylinder, and then seawater in the first filter screen cylinder flows through the first filter screen cylinder and into the water outlet pipe. In the process of seawater flowing through the first filter screen cylinder, the first filter screen cylinder can shear the bubbles carried in seawater, so that the bubbles in seawater break to form small bubbles and quickly dissolve into seawater, so as to reduce the amount of bubbles in seawater, effectively avoid the vibration of the pump body caused by a large amount of bubbles carried in seawater, and ensure that the water amount sent into the cooling pipeline by the pump body is not reduced, so that the equipment can obtain sufficient cooling, and the ship can be ensured to run normally.
[0007] The self-flowing bubble eliminator according to the embodiment of the present application further comprises a second filter screen cylinder, which is arranged in the defoaming chamber and connected with the bottom wall of the defoaming chamber, a gap is left between the second filter screen cylinder and the top of the defoaming chamber, the second filter screen cylinder is arranged outside the first filter screen cylinder, and the second filter screen cylinder is used for breaking bubbles in seawater.
[0008] The aperture of the second filter screen cylinder is smaller than the aperture of the first filter screen cylinder.
[0009] The self-flowing bubble eliminator according to the embodiment of the present application further comprises a third filter screen, which is arranged in the water outlet pipe and used for breaking bubbles in seawater.
[0010] The aperture of the third filter screen is smaller than the aperture of the second filter screen cylinder.
[0011] The third filter screen is conical to increase the contact area between the third filter screen and seawater, and the large end of the third filter screen faces the water inlet end of the water outlet pipe.
[0012] The self-flowing bubble eliminator according to the embodiment of the present application further comprises a water valve, which is arranged on the water outlet pipe and arranged between the third filter screen and the defoaming chamber.
[0013] The water inlet end of the water outlet pipe is close to the bottom wall of the defoaming chamber.
[0014] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0015] The utility model discloses make further illustration to the utility model with the drawings and embodiment, wherein,
[0016] Figure 1 For the structure diagram of self-flow type bubble eliminator of the utility model embodiment,
[0017] Figure 2 For the structure diagram of defoaming bin in self-flow type bubble eliminator of the utility model embodiment,
[0018] Figure 3 For the structure diagram of water outlet pipe in self-flow type bubble eliminator of the utility model embodiment,
[0019] Drawing reference number:
[0020] Defoaming bin 100;First filter screen cylinder 110;Second filter screen cylinder 120;Third filter screen 130;Exhaust port 140;
[0021] Water inlet pipe 200;
[0022] Water outlet pipe 300;Water valve 310. Specific implementation
[0023] In the description of the utility model, need understanding, involve the orientation description, for example, the orientation or positional relationship of the upper, lower, front, back, left, right etc. indicated in the drawing is shown, only for the convenience of describing the utility model and simplifying the description, and is not the device or element indicated or implied with the specific orientation, with the specific orientation structure and operation, therefore can not be understood as the limitation of the utility model.
[0024] In the description of the utility model, if there is the description to first, second only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or the quantity of the indicated technical feature or the indicated technical feature is implied to indicate the precedence relation.
[0025] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection etc. should be broadly understood, and the person skilled in the art can combine the specific content of technical scheme to determine the specific meaning of the above words in the utility model.
[0026] Refer to Figure 1 And Figure 2 The utility model discloses a self-flow type bubble eliminator, including defoaming bin 100, water inlet pipe 200, water outlet pipe 300 and first filter screen cylinder 110.
[0027] The top of the defoaming bin 100 is provided with an exhaust port 140, the inner cavity of the defoaming bin 100 is communicated with the outside atmosphere through the exhaust port 140, so that the gas in the defoaming bin 100 can be discharged through the exhaust port 140; the water outlet end of the water inlet pipe 200 is connected with the bottom wall of the defoaming bin 100, the water inlet pipe 200 is communicated with the inner cavity of the defoaming bin 100, and the water inlet end of the water inlet pipe 200 is used for being communicated with the submarine door; the water inlet end of the water outlet pipe 300 is connected with the defoaming bin 100, the water outlet pipe 300 is communicated with the inner cavity of the defoaming bin 100, and the water outlet end of the water outlet pipe 300 is used for being communicated with the pump body, so that the seawater flows into the water inlet pipe 200, the defoaming bin 100 and the water outlet pipe 300 in sequence; the first filter screen cylinder 110 is arranged in the defoaming bin 100 and connected with the bottom wall of the defoaming bin 100, the first filter screen cylinder 110 is left with a gap between the top of the defoaming bin 100, and the water outlet end of the water inlet pipe 200 is arranged in the first filter screen cylinder 110, so that the seawater flowing out of the water inlet pipe 200 flows into the first filter screen cylinder 110 first, and the first filter screen cylinder 110 is used for breaking the bubbles in the seawater.
[0028] It should be explained that the submarine door is mainly used for sucking seawater from the bottom of the ship to provide cooling water for various equipment of the ship, so as to ensure that the equipment can effectively dissipate heat when running, prevent overheating, and ensure that the ship can run normally. The submarine door is usually made of cast steel or cast iron, has an inlet grille, the inlet grille is used to prevent larger sundries from being sucked in, and the inlet grille is also provided with a replaceable filter screen to further filter small particles in the seawater, so as to ensure that the seawater entering the ship system is relatively clean, which will not be described further here. It should be explained that the seawater carrying a large amount of bubbles not only causes abnormal vibration of the pump body, but also reduces the amount of water sent by the pump body into the cooling pipeline. The continuous vibration of the pump body is easy to cause the performance of the pump body to decrease or even cannot work normally, which affects the whole cooling system, so that many equipment on the ship such as the engine, the generator, the air compressor and the like have a high temperature in the running process, which causes the performance of the equipment to decrease, and further affects the normal running of the ship. In the embodiment of the utility model, the water outlet end of the water outlet pipe 300 is communicated with the pump body, the water inlet end of the water outlet pipe 300 is communicated with the defoaming bin 100, the water inlet end of the water inlet pipe 200 is communicated with the submarine door, and the water outlet end of the water inlet pipe 200 is communicated with the defoaming bin 100. When the pump body is started, the seawater at the submarine door is sucked into the water inlet pipe 200, so that the seawater flows into the water inlet pipe 200, the defoaming bin 100 and the water outlet pipe 300 in sequence. Finally, the seawater in the water outlet pipe 300 flows into the cooling pipeline under the action of the pump body.
[0029] It can be understood that after the pump body is started, seawater at the sea gate will flow into the water inlet pipe 200, the defoaming bin 100 and the water outlet pipe 300 in turn. Since the water outlet end of the water inlet pipe 200 is arranged in the first filter screen cylinder 110, the seawater flowing out of the water inlet pipe 200 will first flow into the first filter screen cylinder 110, and then the seawater in the first filter screen cylinder 110 will flow through the first filter screen cylinder 110 and flow into the water outlet pipe 300. In the process of seawater flowing through the first filter screen cylinder 110, the first filter screen cylinder 110 can shear the bubbles carried in the seawater, so that the bubbles in the seawater break to form small bubbles and quickly dissolve into the seawater, so as to reduce the amount of bubbles in the seawater. Not only can the vibration of the pump body caused by a large amount of bubbles carried in the seawater be effectively avoided, but also the amount of water sent into the cooling pipeline by the pump body can be ensured not to be reduced, so that the equipment can obtain sufficient cooling, and the normal operation of the ship can be ensured.
[0030] It needs to be explained that, on the one hand, when the bubbles contact the first filter screen cylinder 110, the surface of the first filter screen cylinder 110 will destroy the surface tension balance of the bubbles, so that the liquid film on the surface of the bubbles is stretched, twisted or pierced, thereby causing the bubbles to break. When the seawater flows through the first filter screen cylinder 110, the speed and direction of the seawater will change, thereby forming a complex flow state around the first filter screen cylinder 110. Under this complex flow state, the pressure distribution around the bubbles becomes uneven. When the bubbles are in an area with a large pressure difference, the bubbles will be squeezed, deformed and eventually broken under the action of uneven pressure. On the other hand, in the process of seawater flowing through the first filter screen cylinder 110, the hole wall of the hole on the first filter screen cylinder 110 will cut the bubbles, so that the bubbles break. After the bubbles break, part of the gas generated by the broken bubbles will dissolve in the seawater, and another part of the gas will overflow from the seawater and be discharged from the defoaming bin 100 through the exhaust hole 140. As can be seen, the first filter screen cylinder 110 can play a role in defoaming.
[0031] Reference Figure 1 and Figure 2, the self-flowing bubble eliminator further comprises a second filter screen cylinder 120, which is arranged in the bubble elimination chamber 100 and connected with the bottom wall of the bubble elimination chamber 100, and a gap is left between the second filter screen cylinder 120 and the top of the bubble elimination chamber 100, the second filter screen cylinder 120 is arranged outside the first filter screen cylinder 110, and the second filter screen cylinder 120 is used for breaking bubbles in seawater. It can be understood that, since the second filter screen cylinder 120 is arranged outside the first filter screen cylinder 110, seawater flowing out of the water outlet pipe 300 first flows into the first filter screen cylinder 110. Then the seawater in the first filter screen cylinder 110 passes through the first filter screen cylinder 110 and flows into the area between the first filter screen cylinder 110 and the second filter screen cylinder 120. Then the seawater in the area between the first filter screen cylinder 110 and the second filter screen cylinder 120 passes through the second filter screen and flows into the water outlet pipe 300. The second filter screen can break bubbles in seawater, so that the second filter screen can again perform a defoaming treatment on seawater, so as to better eliminate bubbles carried in seawater and further eliminate the possibility of vibration of the pump body due to a large amount of bubbles carried in seawater. It should be explained that, a gap is left between the first filter screen cylinder 110 and the second filter screen cylinder 120 and the top of the bubble elimination chamber 100 for releasing gas, so that the gas released after the bubbles in seawater break can enter the gap. The top of the bubble elimination chamber 100 is provided with an exhaust port 140, and the inner cavity of the bubble elimination chamber 100 is in communication with the atmosphere through the exhaust port 140, so that the gas in the bubble elimination chamber 100 can be timely discharged outside the bubble elimination chamber 100 through the exhaust port 140.
[0032] With reference to Figure 1 And Figure 2 The water inlet end of the water outlet pipe 300 is close to the bottom wall of the bubble elimination chamber 100. It can be understood that, in the process of bubble breaking, the gas generated by the bubble breaking rises and is discharged from the exhaust port 140, and the water inlet end of the water outlet pipe 300 is close to the bottom wall of the bubble elimination chamber 100, so as to avoid the rising gas entering the water outlet pipe 300 and forming new bubbles. In the embodiment of the utility model, the water level of seawater flowing into the bubble elimination chamber 100 does not exceed the height of the first filter screen cylinder 110 and the second filter screen cylinder 120, so as to ensure that the seawater flowing into the bubble elimination chamber 100 needs to pass through the first filter screen cylinder 110 and the second filter screen cylinder 120 in sequence before flowing into the water outlet pipe 300.
[0033] In the embodiment of the utility model, the pore diameter of the second filter screen cylinder 120 is smaller than that of the first filter screen cylinder 110. It can be understood that, the first filter screen cylinder 110 can first break larger bubbles in seawater to complete the initial defoaming. Then, the seawater passes through the second filter screen cylinder 120 with a smaller pore diameter, so that the second filter screen cylinder 120 can break the remaining large bubbles or small bubbles in seawater again to complete the secondary defoaming, so that the amount of bubbles in seawater flowing into the water outlet pipe 300 can be greatly reduced, and the possibility of vibration of the pump body due to a large amount of bubbles carried in seawater is further eliminated.
[0034] Reference Figure 1 And Figure 3 The self-flowing bubble eliminator further comprises a third filter screen 130 arranged in the water outlet pipe 300, and the third filter screen 130 is used for breaking bubbles in seawater. It can be understood that the third filter screen 130 is arranged in the water outlet pipe 300, so that the seawater in the water outlet pipe 300 needs to pass through the third filter screen 130 before flowing into the subsequent cooling pipeline. The third filter screen 130 can break bubbles in seawater, that is, the third filter screen 130 can perform three times of bubble elimination on bubbles in seawater, thereby further reducing the amount of bubbles in seawater in the water outlet pipe 300. In the embodiment of the utility model, the aperture of the third filter screen 130 is smaller than the aperture of the second filter screen cylinder 120, so that the third filter screen 130 can break the remaining bubbles in seawater in the water outlet pipe 300 again, which will not be described further herein. Figure 3 The third filter screen 130 is conical to increase the contact area of the third filter screen 130 and seawater, and the large end of the third filter screen 130 faces the water inlet end of the water outlet pipe 300. It can be understood that the third filter screen 130 in a conical shape can increase the contact area with seawater in the water outlet pipe 300, so that the third filter screen 130 has more opportunities to contact bubbles in seawater in the water outlet pipe 300, thereby facilitating the improvement of the bubble elimination effect of the third filter screen 130. Since the large end of the third filter screen 130 in a conical shape faces the water inlet end of the water outlet pipe 300, the third filter screen 130 gradually shrinks along the flow direction of seawater, so that the third filter screen 130 in a conical shape can guide bubbles in seawater to gather towards the center of the third filter screen 130, thereby making bubbles more likely to break due to mutual collision in a smaller space, and improving the bubble elimination effect of the third filter screen 130.
[0035] In the embodiment of the utility model, a plurality of through holes for seawater to pass through are arranged on the first filter screen cylinder 110, the second filter screen cylinder 120 and the third filter screen 130, and the first filter screen cylinder 110, the second filter screen cylinder 120 and the third filter screen 130 can be made of a mesh plate, which will not be described further herein.
[0036] Reference Figure 1 And Figure 3 The self-flowing bubble eliminator further comprises a water valve 310 arranged on the water outlet pipe 300, and the water valve 310 is arranged between the third filter screen 130 and the bubble elimination chamber 100. It can be understood that the water valve 310 is used for opening or closing the water outlet pipe 300. When maintenance personnel need to maintain and repair the cooling pipeline, the maintenance personnel can close the water outlet pipe 300 through the water valve 310 to avoid seawater flowing into the water outlet pipe 300 during the maintenance and repair of the cooling pipeline by the maintenance personnel. The water valve 310 is a common valve, which will not be described further herein.
[0037] Any technical features in the above-described embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present specification.
[0038] Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A self-flowing bubble eliminator, characterized in that, The utility model relates to a kind of sea water intake device, including: Defoaming bin (100), the top of the defoaming bin (100) is provided with exhaust port (140), the inner chamber of the defoaming bin (100) is communicated with outside atmosphere by the exhaust port (140), so that the gas in the defoaming bin (100) can be discharged by the exhaust port (140); Water inlet pipe (200), the water outlet end of the water inlet pipe (200) is connected with the bottom wall of the defoaming bin (100), the water inlet pipe (200) is communicated with the inner chamber of the defoaming bin (100), and the water inlet end of the water inlet pipe (200) is used to be communicated with submarine gate; Water outlet pipe (300), the water inlet end of the water outlet pipe (300) is connected with the defoaming bin (100), the water outlet pipe (300) is communicated with the inner chamber of the defoaming bin (100), and the water outlet end of the water outlet pipe (300) is used to be communicated with pump body, so that seawater flows into the water inlet pipe (200), the defoaming bin (100) and the water outlet pipe (300) in turn; First filter screen cylinder (110) is arranged in the defoaming bin (100) and is connected with the bottom wall of the defoaming bin (100), and the first filter screen cylinder (110) is left with a gap between the top of the defoaming bin (100), the water outlet end of the water inlet pipe (200) is arranged in the first filter screen cylinder (110), so that the seawater flowing out from the water inlet pipe (200) first flows into the first filter screen cylinder (110), and the first filter screen cylinder (110) is used to break the bubbles in seawater.
2. The self-priming bubble eliminator of claim 1, wherein: Second filter screen cylinder (120) is further included, and the second filter screen cylinder (120) is arranged in the defoaming bin (100) and is connected with the bottom wall of the defoaming bin (100), and the second filter screen cylinder (120) is left with a gap between the top of the defoaming bin (100), and the second filter screen cylinder (120) is arranged outside the first filter screen cylinder (110), and the second filter screen cylinder (120) is used to break the bubbles in seawater.
3. The self-priming bubble eliminator of claim 2, wherein: The aperture of the second filter screen cylinder (120) is smaller than the aperture of the first filter screen cylinder (110).
4. The self-priming bubble eliminator of claim 2, wherein: Third filter screen (130) is further included, and the third filter screen (130) is arranged in the water outlet pipe (300), and the third filter screen (130) is used to break the bubbles in seawater.
5. The self-priming bubble eliminator of claim 4, wherein: The aperture of the third filter screen (130) is smaller than the aperture of the second filter screen cylinder (120).
6. The self-priming bubble eliminator of claim 4, wherein: The third filter screen (130) is conical, so as to increase the contact area of the third filter screen (130) and seawater, and the large end of the third filter screen (130) faces the water inlet end of the water outlet pipe (300).
7. The self-priming bubble eliminator of claim 4, wherein: Water valve (310) is further included, and the water valve (310) is arranged on the water outlet pipe (300), and the water valve (310) is arranged between the third filter screen (130) and the defoaming bin (100).
8. The self-priming bubble eliminator of claim 1, wherein: The water inlet end of the water outlet pipe (300) is close to the bottom wall of the defoaming bin (100).