A defoaming oil tank

Abstract

The application provides a defoaming oil tank, which comprises a tank body, an oil inlet assembly and a defoaming assembly. The tank body has a first cavity for containing oil. The oil inlet assembly comprises an oil inlet cylinder, which comprises a head part arranged outside the tank body and a rod part extending into the first cavity. The rod part comprises at least one first defoaming layer, which forms a first pore for preventing bubbles from passing through. The defoaming assembly comprises a defoaming cylinder coaxially arranged on the outer periphery of the oil inlet cylinder. The oil inlet cylinder and the defoaming cylinder form a second cavity for containing oil filtered from the first pore. The defoaming cylinder comprises at least one second defoaming layer, which forms a second pore. The defoaming cylinder can rotate to make the oil in the second cavity flow into the first cavity through the second pore after being thrown out of the second cavity. The defoaming oil tank has good defoaming effect, avoids the influence of bubbles in the oil on the power system, and improves the reliability of the power system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, and particularly relates to a defoaming oil tank. BACKGROUND

[0002] The oil tank is one of the components of the power system and is used for storing oil. After the oil enters the oil tank from the oil inlet pipe, the oil is in contact with air and air bubbles are easily formed. The existence of the air bubbles will affect the equipment and oil supply equipment, such as reducing the bearing capacity of the bearing, increasing the vibration noise, reducing the stability of the power system and the like.

[0003] In the prior art, in order to eliminate the air bubbles in the oil tank, a degassing assembly is usually arranged between the oil inlet and the oil storage cavity. For example, in the patent with the application number 202210768070.6, the oil flow channel is arranged obliquely to make the oil slide along the inclined surface, so that the air bubbles are caused to escape due to the buoyancy effect in the oil flow process. However, in fact, this defoaming method depends on whether the air bubbles can "actively" escape. Affected by the gravity of the air bubbles, part of the air bubbles with a large volume will still remain in the oil, and the defoaming effect is poor. SUMMARY

[0004] Therefore, the present application provides a defoaming oil tank to solve the problem of poor defoaming effect of the oil tank in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The defoaming oil tank according to the embodiments of the present application comprises a tank body, the tank body has a first cavity for containing oil, and comprises:

[0007] An oil inlet assembly is arranged on the tank body on one side of the first cavity, the oil inlet assembly comprises an oil inlet cylinder, the oil inlet cylinder comprises a head portion arranged outside the tank body and a rod portion extending into the first cavity, the rod portion comprises at least one first defoaming layer, and the first defoaming layer forms a first pore that prevents air bubbles from passing through;

[0008] A defoaming assembly comprises a driving member and a defoaming cylinder connected to the output end of the driving member, the defoaming cylinder is coaxially arranged on the outer periphery of the oil inlet cylinder to form a second cavity, the second cavity is used for containing oil filtered from the first pore, the defoaming cylinder comprises at least one second defoaming layer, the second defoaming layer forms a second pore, and the driving member drives the defoaming cylinder to rotate so that the oil in the second cavity flows into the first cavity through the second pore after being thrown out through the second pore.

[0009] Further, the tank body comprises a top plate, and the oil inlet assembly further comprises a connecting plate arranged on the side wall of the oil inlet cylinder, and the connecting plate is mounted to the top plate.

[0010] The head is located above the connecting plate, the head has a liquid inlet connected with an oil inlet pipe to receive oil, the head forms a first flow guide hole connected with the liquid inlet, and the rod part forms a second flow guide hole in communication with the first flow guide hole to receive oil.

[0011] Further, the foaming oil tank of the embodiment of the present application can further comprise:

[0012] A first filter screen is located between the head and the rod part, and the first filter screen is arranged in the first flow guide hole close to the rod part.

[0013] Further, the foaming oil tank of the embodiment of the present application can further comprise:

[0014] An exhaust pipe is formed in an "L" shape, the "L" shape comprises a first section and a second section connected with the first section, the head further has an exhaust port located on the opposite side of the liquid inlet, the first section extends out of the first flow guide hole through the exhaust port, and the second section extends into the second flow guide hole through the first flow guide hole.

[0015] Further, the first defoaming layer is arranged on the side wall and the bottom wall of the rod part.

[0016] Further, the defoaming assembly further comprises:

[0017] A bearing is sleeved on the side wall of the defoaming cylinder;

[0018] A flange is sleeved on the outer periphery of the bearing, and the flange is installed on the inner wall of the top plate of the tank body.

[0019] Further, the foaming oil tank of the embodiment of the present application can further comprise:

[0020] An installation plate, a part of the installation plate is connected to the tank body;

[0021] A flow guide cylinder is connected to another part of the installation plate, and the flow guide cylinder is coaxially arranged on the outer periphery of the defoaming cylinder to form a flow guide cavity in communication with the first cavity.

[0022] Further, the bottom of the flow guide cavity forms a horn structure with a gradually decreasing aperture along the flow direction of the oil.

[0023] Further, the tank body further has a third cavity for receiving oil in the first cavity, the third cavity is provided with an outlet on the side away from the first cavity, and the outlet is used to connect an oil outlet pipe to supply oil to equipment.

[0024] A second filter screen is arranged between the first chamber and the third chamber.

[0025] Further, an observation window is arranged on the box body, and a scale disc is arranged on the observation window, which is used for indicating the oil level in the first chamber.

[0026] The anti-foaming oil tank has at least one of the following beneficial effects: the anti-foaming oil tank comprises a box body, an oil inlet assembly and an anti-foaming assembly, the box body has a first chamber for containing oil, the oil inlet assembly comprises an oil inlet cylinder, the oil inlet cylinder comprises a head portion arranged outside the box body and a rod portion extending into the first chamber, the rod portion comprises at least one first anti-foaming layer, the first anti-foaming layer forms a first pore for preventing bubbles from passing through, the anti-foaming assembly comprises an anti-foaming cylinder coaxially arranged on the outer periphery of the oil inlet cylinder, the oil inlet cylinder and the anti-foaming cylinder form a second chamber for containing oil filtered from the first pore, the anti-foaming cylinder comprises at least one second anti-foaming layer, the second anti-foaming layer forms a second pore, and the anti-foaming cylinder can be rotated to make the oil in the second chamber flow into the first chamber through the second pore after being thrown out. The anti-foaming oil tank of the embodiment of the present application first removes the bubbles with large volume in the oil through the first anti-foaming layer of the oil inlet assembly, and then the anti-foaming cylinder is driven to rotate by the driving member when the oil enters the second chamber, so that the oil and the bubbles in the second chamber are separated under the action of centrifugal force, that is, the oil with large mass is thrown out through the second pore and then remains in the first chamber under the action of inertia, and the bubbles with small mass remain in the second chamber and the cavity of the rod portion, thereby achieving the purpose of degassing. The anti-foaming oil tank has good anti-foaming effect, avoids the influence of the bubbles in the oil on the power system, and improves the reliability of the power system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the anti-foaming oil tank according to the embodiment of the present application;

[0028] Figure 2 FIG. 2 is a schematic diagram of the internal structure of the anti-foaming oil tank according to the embodiment of the present application;

[0029] Figure 3 FIG. 3 is a sectional view of the anti-foaming oil tank according to the embodiment of the present application;

[0030] Figure 4 FIG. 4 is a sectional view of the local structure of the anti-foaming oil tank according to the embodiment of the present application;

[0031] Figure 5 FIG. 5 is a schematic diagram of the driving principle structure of the anti-foaming assembly according to the embodiment of the present application;

[0032] Figure 6 FIG. 6 is a schematic diagram of the structure of the oil inlet assembly according to the embodiment of the present application.

[0033] REFERENCE SIGNS:

[0034] 100. box; 110. first chamber; 120. top plate; 130. third chamber; 140. observation window; 150. scale; 200. oil inlet assembly; 210. oil inlet cylinder; 211. head; 2111. liquid inlet; 2112. first flow guide hole; 2113. exhaust port; 212. stem; 2121. first defoaming layer; 2121a. first aperture; 2122. second flow guide hole; 220. connecting plate; 310. driving member; 311. driving part; 312. transmission part; 320. defoaming cylinder; 321. second defoaming layer; 3211. second aperture; 330. bearing; 340. flange; 400. first filter screen; 500. exhaust pipe; 510. first section; 520. second section (not labeled); 600. mounting plate; 610. first part; 620. second part; 700. flow guide cylinder; 710. flow guide cavity; 711. horn structure; 712. oil outlet hole; 800. second filter screen. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0036] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning understood by those of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not indicate any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one" or "a" and similar terms do not indicate a quantity limitation, but indicate the existence of at least one. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships are also changed accordingly.

[0037] First, the embodiments of the present application will be described below with reference to the accompanying drawings. Figures 1-6The defoaming oil tank of this embodiment of the invention is described in detail. The defoaming oil tank includes a tank body 100, an oil inlet assembly 200, and a defoaming assembly. The tank body 100 has a first chamber 110 for containing oil. The oil inlet assembly 200 is disposed on the tank body 100 on one side of the first chamber 110. The oil inlet assembly 200 includes an oil inlet cylinder 210. The oil inlet cylinder 210 includes a head 211 disposed outside the tank body 100 and a rod portion 212 extending into the first chamber 110. The rod portion 212 includes at least one first defoaming layer 2121. To meet the mechanical strength requirements of the rod portion 212, the first defoaming layer 2121 can be made of stainless steel, for example. The thickness of the first defoaming layer 2121 can be 1.4 to 3.5 mm. The first defoaming layer 2121 forms a first pore 2121a that prevents air bubbles from passing through. The pore size of the first pore 2121a can be less than 1 mm, for example. The defoaming assembly includes a drive unit 310 and a defoaming cylinder 320 connected to the output end of the drive unit 310. The defoaming cylinder 320 is coaxially disposed on the outer periphery of the oil inlet cylinder 210 to form a second chamber. The second chamber is used to contain the oil filtered from the first pore 2121a. The defoaming cylinder 320 includes at least one second defoaming layer 321. To meet the mechanical strength requirements of the defoaming cylinder 320, the second defoaming layer 321 can be made of stainless steel, for example, and its thickness can be 1.4 to 3.5 mm. The second defoaming layer 321 forms a second pore 3211. The pore size of the second pore 3211 can be, for example, less than 1.0 mm, to prevent air bubbles from passing through. The drive unit 310 drives the defoaming cylinder 320 to rotate so that the oil in the second chamber flows out through the second pore 3211 and into the first chamber 110. That is, as Figures 1-4 As shown, firstly, the oil enters the rod portion 212 from the head 211 of the oil inlet cylinder 210 in the oil inlet assembly 200; then, the oil passes through the first defoaming layer 2121 and enters the second chamber formed by the oil inlet cylinder 210 and the defoaming cylinder 320. During this process, because the first defoaming layer 2121 forms a first pore 2121a that prevents bubbles from passing through, the first pore 2121a can prevent some larger bubbles from passing through. Furthermore, during the oil's passage, the matrix of the first defoaming layer 2121 can also "puncture" the bubbles, further enhancing its function. The defoaming effect is achieved by the following steps: After a certain amount of oil enters the second chamber, the defoaming cylinder 320 is driven to rotate by the drive unit 310. As a result, the oil and bubbles in the second chamber are separated under the action of centrifugal force. The rotation speed of the defoaming cylinder 320 can be, for example, 100 to 600 r / min. That is, the oil with a larger mass is thrown out through the second pore 3211 of the second defoaming layer 321 under the action of inertia and then left into the first chamber 110, while the bubbles with a smaller mass are retained in the second chamber and the cavity of the rod 212, thereby achieving the purpose of degassing.

[0038] The defoaming oil tank has good defoaming effect, avoids the influence of bubbles in oil on the power system, and improves the reliability of the power system.

[0039] Further, the tank body 100 comprises a top plate 120, and the oil inlet assembly 200 further comprises a connecting plate 220 arranged on the side wall of the oil inlet cylinder 210, and the connecting plate 220 is installed to the top plate 120. That is to say, as shown in the figure, Figures 1-2 The oil inlet assembly 200 is installed to the tank body 100 in sequence through the connecting plate 220 and the top plate 120.

[0040] The head part 211 is located above the connecting plate 220, the head part 211 has an oil inlet port 2111 connected to the oil inlet pipe to receive oil, the head part 211 forms a first flow guide hole 2112 connected to the oil inlet port 2111, and the rod part 212 forms a second flow guide hole 2122 which is communicated with the first flow guide hole 2112 to receive oil. That is to say, as shown in the figure, Figures 3-4 The head part 211 of the oil inlet cylinder 210 is connected to the oil inlet pipe, and the oil sequentially enters the second flow guide hole 2122 of the rod part 212 through the oil inlet port 2111 and the first flow guide hole 2112. That is, by arranging the oil inlet assembly 200 with the head part 211 and the rod part 212, the oil in the oil inlet pipe is pumped into the interior of the defoaming oil tank, and the structure of the oil inlet assembly 200 is simple and convenient for operators to operate.

[0041] Further, the defoaming oil tank can further comprise a first filter screen 400, the first filter screen 400 is located between the head part 211 and the rod part 212, and the first filter screen 400 is arranged on the side close to the rod part 212 in the first flow guide hole 2112. That is to say, as shown in the figure, Figure 3 During the process that the oil flows from the first flow guide hole 2112 of the head part 211 into the second flow guide hole 2122 of the rod part 212, the first filter screen 400 can be arranged to filter the oil for the first time, and in this process, not only the impurities in the oil can be filtered out, but also the oil can be preliminarily degassed, further improving the defoaming effect and improving the stability of the power system.

[0042] Further, the defoaming oil tank can further comprise an exhaust pipe 500, the exhaust pipe 500 is formed in an "L" shape, the "L" shape comprises a first section 510 and a second section 520 connected to the first section 510, the head part 211 further has an exhaust port 2113 located on the opposite side of the oil inlet port 2111, the first section 510 extends out of the first flow guide hole 2112 through the exhaust port 2113, and the second section 520 extends into the second flow guide hole 2122 through the first flow guide hole 2112. That is to say, as shown in the figure, Figure 3As shown, under the blocking and "piercing" effects of the first defoaming layer 2121 and the rotating and centrifugal effects of the defoaming cylinder 320, the bubbles will be trapped in the second chamber and the second flow guide hole 2122 of the rod portion 212. Further, by arranging the exhaust pipe 500, the trapped bubbles can be discharged to the atmospheric environment in time through the second section 520 and the first section 510, avoiding the residual bubbles from mixing into the oil liquid again, and the defoaming effect can be further improved.

[0043] Further, the first defoaming layer 2121 is arranged on the side wall and the bottom wall of the rod portion 212. That is, the first defoaming layer 2121 can be arranged on the side wall and the bottom wall of the rod portion 212, so as to accelerate the oil liquid into the second chamber and improve the oil pumping efficiency.

[0044] Further, the defoaming assembly further comprises a bearing 330 and a flange plate 340, the bearing 330 is sleeved on the side wall of the defoaming cylinder 320, and the flange plate 340 is sleeved on the outer periphery of the bearing 330 and is installed on the inner wall of the top plate 120 of the box body 100. That is, as shown in Figures 2-4 As shown, the defoaming cylinder 320 is connected to the box body 100 in sequence through the bearing 330, the flange plate 340 and the top plate 120. Specifically, the driving member 310 can comprise a driving portion 311 arranged on the top plate 120 and a transmission portion 312 connected to the output end of the driving portion 311, for example, the driving portion 311 can be a motor, the motor is arranged on the top of the box body 100, the output shaft of the motor penetrates the top plate 120 and extends into the interior of the box body 100, the output shaft of the motor is connected to the transmission portion 312, for example, the transmission portion 312 can be a belt transmission structure, the output shaft of the motor is connected to a driving wheel, the outer periphery of the defoaming cylinder 320 is sleeved with a driven wheel, the driven wheel is arranged below the flange plate 340, and the driving wheel is connected to the driven wheel through a belt, so that when the output shaft of the motor rotates, the driving wheel, the belt, the driven wheel and the defoaming cylinder 320 can be driven in sequence.

[0045] It is easy to understand that other driving modes can also be used to drive the defoaming cylinder 320 to rotate, which are not listed one by one in the present application.

[0046] Further, the foaming oil tank of the embodiment of the present application can further comprise a mounting plate 600 and a flow guide cylinder 700, a part of the mounting plate 600 is connected to the box body 100, and the flow guide cylinder 700 is connected to another part of the mounting plate 600, and the flow guide cylinder 700 is coaxially arranged on the outer periphery of the defoaming cylinder 320 to form a flow guide cavity 710 communicating with the first chamber 110. That is, as shown in Figure 2 , Figure 4As shown, a guide tube 700 is provided on the outer periphery of the defoaming cylinder 320, and the guide tube 700 is connected to the housing 100 via a mounting plate 600. Specifically, the mounting plate 600 may include, for example, a first part 610 connected to the side plate of the housing 100 and a second part 620 connected to the side wall of the guide tube 700. The first part 610 and the second part 620 can be integrally set or separately connected. It is easy to understand that, for the sake of convenient installation, the first part 610, the second part 620, and the guide tube 700 are preferably integrally set. By setting the guide tube 700, it can receive the oil splashed out from the second chamber of the defoaming cylinder 320, and the inner wall of the guide tube 700 can also guide the oil into the first chamber 110. The setting of the guide tube 700 can also prevent the oil from splashing onto the inner wall of the housing 100, reduce the probability of the oil coming into contact with air, and further improve the defoaming effect.

[0047] Furthermore, the bottom of the guide cavity 710 forms a flared structure 711 with a gradually decreasing orifice diameter along the oil flow direction. That is, as... Figures 3-4 As shown, a horn structure 711 is provided at the bottom of the guide cavity 710 near the first chamber 110. The horn structure 711 has a relatively flat inclined surface compared to the inner wall above the guide tube 700, which can slow down the descent speed of the oil, thereby avoiding splashing caused by the oil falling too fast, further reducing the probability of the oil coming into contact with air, and improving the defoaming effect.

[0048] It is worth noting that, such as Figures 3-4 As shown, for example, a shorter oil outlet 712 can be provided below the horn structure 711. The oil outlet 712 can prevent oil from accumulating below the horn structure 711, prevent the accumulated oil from splashing when it falls, further reduce the chance of the oil coming into contact with air, and improve the defoaming effect.

[0049] Furthermore, the housing 100 also has a third chamber 130 for receiving oil from the first chamber 110. An outlet is provided on the side of the third chamber 130 away from the first chamber 110, and this outlet is used to connect an oil outlet pipe to supply oil to the equipment. A second filter 800 is provided between the first chamber 110 and the third chamber 130. That is, as... Figures 2-4 As shown, a second filter 800 can also be provided between the first chamber 110 and the third chamber 130 to further defoam the oil, further improve the defoaming effect, and improve the stability of the power system.

[0050] Furthermore, an observation window 140 is provided on the housing 100, and a dial 150 is provided on the observation window 140. The dial 150 is used to indicate the oil level in the first chamber 110. That is to say, as Figure 1As shown, the observation window 140 is arranged at the corresponding position of the first chamber 110, so that the operator can determine whether the oil needs to be continuously pumped or stopped according to the oil level in the first chamber 110, thereby further improving the convenience of operation.

[0051] The above is the preferred embodiment of the present application. It should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the scope of protection of the present application.

Claims

1. An anti-foaming oil tank comprising a tank body (100) having a first chamber (110) for containing oil, characterized in that, The application relates to an oil feeding assembly and a defoaming assembly. The oil feeding assembly (200) is arranged on one side of the first chamber (110) of the box body (100), and comprises an oil feeding cylinder (210), wherein the oil feeding cylinder (210) comprises a head (211) arranged outside the box body (100) and a rod (212) extending into the first chamber (110), the rod (212) comprises at least one first defoaming layer (2121), and the first defoaming layer (2121) forms a first pore (2121a) for preventing bubbles from passing through. The defoaming assembly comprises a driving member (310) and a defoaming cylinder (320) connected with an output end of the driving member (310), the defoaming cylinder (320) is coaxially arranged on the outer periphery of the oil feeding cylinder (210) to form a second chamber for containing oil filtered from the first pore (2121a), the defoaming cylinder (320) comprises at least one second defoaming layer (321), the second defoaming layer (321) forms a second pore (3211), and the driving member (310) drives the defoaming cylinder (320) to rotate so that oil in the second chamber is thrown out through the second pore (3211) and then flows into the first chamber (110).

2. The deaerating oil tank of claim 1, wherein, The box body (100) comprises a top plate (120), and the oil feeding assembly (200) further comprises a connecting plate (220) arranged on the side wall of the oil feeding cylinder (210), wherein the connecting plate (220) is mounted to the top plate (120). The head (211) is located above the connecting plate (220), the head (211) has an oil inlet (2111) connected with an oil feeding pipe to receive oil, the head (211) forms a first flow guide hole (2112) connected with the oil inlet (2111), and the rod (212) forms a second flow guide hole (2122) in communication with the first flow guide hole (2112) to receive oil.

3. The deaerating oil tank of claim 2, wherein, The application further relates to a first filter screen (400) located between the head (211) and the rod (212), wherein the first filter screen (400) is arranged in the first flow guide hole (2112) and close to the rod (212). The application further relates to an exhaust pipe (500) formed in an "L" shape, wherein the "L" shape comprises a first section (510) and a second section (520) connected with the first section (510), the head (211) further has an exhaust port (2113) located on the opposite side of the oil inlet (2111), the first section (510) extends out of the first flow guide hole (2112) through the exhaust port (2113), and the second section (520) extends into the second flow guide hole (2122) through the first flow guide hole (2112).

4. The deaerating oil tank of claim 3, wherein, The first defoaming layer (2121) is arranged on the side wall and the bottom wall of the rod (212). The defoaming assembly further comprises 5. The deaerating oil tank of claim 1, wherein, ​ 6. The deaerating oil tank of claim 1, wherein, ​ a bearing (330) sleeved on a side wall of the defoaming cylinder (320); a flange (340) sleeved on an outer periphery of the bearing (330), the flange (340) being mounted on an inner wall of a top plate (120) of the box (100).

7. The deaerating oil tank of claim 1, wherein Further comprising: a mounting plate (600), a part of the mounting plate (600) being connected to the box (100); a flow guide cylinder (700) connected to another part of the mounting plate (600), the flow guide cylinder (700) being coaxially arranged on an outer periphery of the defoaming cylinder (320) to form a flow guide cavity (710) in communication with the first chamber (110).

8. The deaerating oil tank of claim 7, wherein, A bottom of the flow guide cavity (710) forms a horn structure (711) gradually decreasing in aperture along a flow direction of the oil.

9. The deaerating oil tank of claim 1, wherein, The box (100) further has a third chamber (130) for receiving the oil in the first chamber (110), the third chamber (130) being provided with an outlet on a side away from the first chamber (110), the outlet being used for connecting an oil outlet pipe to supply oil to equipment. A second filter screen (800) is arranged between the first chamber (110) and the third chamber (130).

10. The deaerating oil tank of claim 1, wherein, An observation window (140) is further arranged on the box (100), a scale disc (150) being arranged on the observation window (140), the scale disc (150) being used for indicating an oil level in the first chamber (110).

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