A tank vacuum defoaming device

Abstract

A kind of oil tank vacuum defoaming device, including oil tank, inlet, outlet, air inlet and exhaust port are formed on oil tank, fixedly connected with baffle in oil tank, and oil tank is divided into first oil storehouse and second oil storehouse, piston is slidably installed on baffle, by driving piston to move, the capacity of first oil storehouse, second oil storehouse is changed, to form negative pressure in first oil storehouse or second oil storehouse, so that the dissolved air of oil liquid in negative pressure oil storehouse is precipitated, and the air precipitated is discharged with the air in oil tank outside the device, convenient operation, defoaming efficiency is high, and the air bubble content in oil liquid is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of oil defoaming devices, specifically relating to a vacuum defoaming device for oil tanks. Background Technology

[0002] Traditional hydraulic tanks rely on gravity to float air bubbles in the hydraulic fluid for defoaming. This method has a low defoaming rate for tiny bubbles and a slow defoaming speed, requiring long hydraulic oil circulation cycles. Therefore, it demands a large hydraulic system capacity, resulting in a large tank size and high hydraulic oil costs. Furthermore, due to the low defoaming rate and the inability to eliminate dissolved air in the oil, bubbles can continue to form within the hydraulic system, affecting overall performance and reliability.

[0003] Utility model patent application number CN202121041622.0 discloses a high-flow-rate oil return defoaming and filtration device, comprising: an oil tank, an oil return pipe installed inside the oil tank, one end of the oil return pipe extending out of the oil tank and fixedly connected to the oil tank, and multiple oil outlets at the bottom of the oil return pipe; and a filter pool located below the oil outlets, with the top-view projections of the multiple oil outlets falling into the filter pool, the bottom of the filter pool connected to the oil tank, and a filter screen fixedly connected to the bottom of the filter pool. The main drawback of the above-mentioned defoaming and filtration device is that while it can filter particulate bubbles through the filter screen, it cannot filter dissolved gases in the liquid. During oil use, bubbles can still be generated under a large negative pressure, which can still cause cavitation in the equipment and is detrimental to extending the equipment's lifespan. Summary of the Invention

[0004] To address the above shortcomings, the technical problem to be solved by the present invention is to provide a vacuum defoaming device for oil tanks. This device can improve the defoaming speed and greatly reduce the dissolved air in the oil, thus greatly reducing the possibility of air precipitation in the oil during use.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0006] A vacuum defoaming device for an oil tank includes an oil tank with an oil inlet, an oil outlet, an air inlet, and an exhaust outlet formed on the tank. A partition is fixedly connected inside the oil tank, dividing the oil tank into a first oil compartment and a second oil compartment. A piston is slidably mounted on the partition. By driving the piston to move, the actual volume of the first and second oil compartments is changed to create a negative pressure in the first or second oil compartment, thereby expelling dissolved air in the oil along with the air inside the oil tank.

[0007] Furthermore, a piston drive component is installed on the oil tank. The piston drive component extends into the oil tank and connects with the piston to drive the piston to move.

[0008] Furthermore, the piston drive component includes a piston rod and a drive cylinder. The drive cylinder is fixedly mounted on the oil tank, and the piston rod is installed inside the drive cylinder and fixedly connected to the piston.

[0009] Furthermore, the oil inlet, oil outlet, air inlet, and exhaust outlet form an oil tank channel assembly, and two oil tank channel assemblies are formed on the oil tank, respectively formed on both sides of the partition.

[0010] Furthermore, the oil inlet, air inlet, and exhaust outlet are formed on the top of the fuel tank, while the oil outlet is formed on the bottom of the fuel tank.

[0011] Furthermore, an oil inlet valve assembly is installed on the oil inlet, an exhaust valve assembly is installed on the exhaust outlet, an oil outlet valve is installed on the oil outlet, and an air inlet valve is installed on the air inlet.

[0012] Furthermore, the oil inlet valve assembly includes an oil inlet valve and an oil inlet pipe, with the oil inlet valve mounted on the oil inlet and the oil inlet pipe mounted on the oil inlet valve.

[0013] Furthermore, the exhaust valve assembly includes an exhaust valve and a condensate filter, with the exhaust valve mounted on the exhaust port and the condensate filter mounted on the exhaust valve.

[0014] Furthermore, the first and second oil tanks have the same volume.

[0015] The beneficial effects of this invention are that by driving the piston to move, the capacity of the first oil tank and the second oil tank is changed, so as to form a negative pressure in the first oil tank or the second oil tank, causing the dissolved air in the oil in the negative pressure oil tank to be released, and then the released air is discharged out of the device together with the air in the oil tank. The operation is convenient, the defoaming efficiency is high, and the bubble content in the oil is greatly reduced. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention.

[0017] Figure 2 This is a half-sectional schematic diagram of the present invention.

[0018] Reference numerals: 1. Oil tank; 2. Oil inlet; 3. Oil outlet; 4. Air inlet; 5. Exhaust outlet; 6. Baffle plate; 7. First oil tank; 8. Second oil tank; 9. Piston; 10. Piston drive; 12. Piston rod; 11. Drive cylinder; 13. Oil outlet valve; 14. Air inlet valve; 15. Oil inlet valve; 16. Oil inlet pipe; 17. Exhaust valve; 18. Condensate filter; 19. Oil outlet valve; 20. Air inlet valve; 21. Oil inlet valve; 22. Oil inlet pipe; 23. Exhaust valve; 24. Condensate filter. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] A vacuum defoaming device for an oil tank includes an oil tank 1. An oil inlet 2, an oil outlet 3, an air inlet 4, and an exhaust outlet 5 are formed on the oil tank 1. A partition 6 is fixedly connected inside the oil tank 1, dividing the oil tank 1 into a first oil chamber 7 and a second oil chamber 8. A piston 9 is slidably mounted on the partition 6. By driving the piston 9 to move, the capacity of the first oil chamber 7 and the second oil chamber 8 is changed to create a negative pressure in the first oil chamber 7 or the second oil chamber 8. This causes dissolved air in the oil in the negative pressure oil chamber to be released. The released air is then discharged from the device along with the air in the oil tank 1. The device is easy to operate, has high defoaming efficiency, and greatly reduces the bubble content in the oil.

[0021] A piston drive component 10 is installed on the oil tank 1. The piston drive component 10 extends into the oil tank 1 and connects with the piston 9, driving the piston 9 to move. By driving the piston 9 through the piston drive component 10, the first oil chamber 7 and the second oil chamber 8 are generated back and forth under negative pressure, which can continuously provide defoamed oil and improve the defoaming efficiency of this defoaming device.

[0022] In this embodiment, the piston drive component 10 includes a piston rod 12 and a drive cylinder 11. The drive cylinder 11 is fixedly installed on the oil tank 1, and the piston rod 12 is installed inside the drive cylinder 11 and fixedly connected to the piston 9. By driving the piston 9 through the external drive cylinder 11, the negative pressure can be greatly increased, the amount of dissolved air in the oil can be increased, and the bubble content in the oil can be greatly reduced. The piston rod 12 is installed in the second oil tank.

[0023] In some embodiments, the drive cylinder 11 can be externally mounted on the oil tank 1, or it can be completely built into the second oil compartment of the oil tank 1.

[0024] Oil inlet 2, oil outlet 3, air inlet 4 and exhaust outlet 5 form an oil tank channel assembly. Two oil tank channel assemblies are formed on the oil tank 1. The oil tank channel assemblies are formed on both sides of the partition 6, which facilitates the oil inlet and outlet operations of the first oil tank 7 and the second oil tank 8, ensuring the working efficiency of the device.

[0025] Oil inlet 2, air inlet 4, and exhaust outlet 5 are formed on the top of oil tank 1 for easy exhaust, while oil outlet 3 is formed on the bottom of oil tank 1 for easy oil discharge.

[0026] An oil inlet valve assembly is installed on the oil inlet 2, an exhaust valve assembly is installed on the exhaust port 5, an oil outlet valve 13 is installed on the oil outlet 3, and an air inlet valve 14 is installed on the air inlet 4.

[0027] The oil inlet valve assembly includes an oil inlet valve 15 and an oil inlet pipe 16. The oil inlet valve 15 is installed on the oil inlet port 2, and the oil inlet pipe 16 is installed on the oil inlet valve 15.

[0028] The exhaust valve assembly includes an exhaust valve 17 and a condenser filter 18. The exhaust valve 17 is installed on the exhaust port 5, and the condenser filter 18 is installed on the exhaust valve 17. The condenser filter 18 is used to filter out oil, water vapor, and air and separate them.

[0029] The first oil tank 7 and the second oil tank 8 have the same volume. That is, the partition 6 divides the volume of the oil tank 1 equally. The partition 6 is placed directly in the center of the oil tank 1, which makes it easy to arrange the partition 6.

[0030] In some embodiments, in order to keep the oil processing volume in the first oil tank 7 and the second oil tank 8 consistent, the actual capacity of the first oil tank 7 is consistent with the capacity of the second oil tank 8 minus the volume of the piston drive component 10.

[0031] The working principle of this defoaming device is as follows:

[0032] To facilitate the differentiation of different oil tank channel components on the first oil tank 7 and the second oil tank 8, the oil outlet valve 19, air inlet valve 20, oil inlet valve 21, oil inlet pipe 22, exhaust valve 23, and condensate filter 24 on the second oil tank 8 are labeled separately.

[0033] When the left oil tank is filled with oil, the outlet valve 13 and exhaust valve 17 are closed, the intake valve 14 and oil inlet valve 15 are open, oil begins to flow into the oil inlet pipe 16, the piston rod 12 is in the extended position, the exhaust valve 23 and oil inlet valve 21 are closed, the intake valve 20 and outlet valve 19 are open, and the right oil tank is in the draining state. When the left oil tank is full, the intake valve 14 and oil inlet valve 15 are closed, the piston rod 12 begins to retract, and at this time, due to the sealed state, a negative pressure begins to form in the left oil tank. Air bubbles in the oil expand and overflow rapidly, and dissolved air in the oil also begins to precipitate and overflow along with the air bubbles due to the reduced solubility caused by the negative pressure. After the bubbles have completely overflowed, the exhaust valve 17 opens, and the piston rod 12 begins to push out, allowing the air overflowing from the oil in the first oil tank 7 to enter the condenser filter 18. Through condensation, the oil, water vapor, and air are filtered out and separated. Then, the exhaust valve 17 closes, the inlet valve 14 and the outlet valve 13 open, the piston rod 12 retracts to its position, and the left oil tank begins to discharge clean oil. At this time, the oil in the right oil tank is emptied, the outlet valve 19 closes, and the inlet valve 21 opens, starting the same bubble-filtering process as the left oil tank. The left and right oil tanks drain oil alternately to ensure a continuous oil supply to the hydraulic system.

[0034] Example 2

[0035] In some embodiments, the air inlet 4 and the exhaust outlet 5 are the same through hole, a Y-type three-way valve is installed on the through hole, and then the corresponding exhaust valve assembly and air inlet valve 14 are installed on the Y-type three-way valve.

[0036] The rest of the structure is the same as in Example 1.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0038] Although this document makes extensive use of terms corresponding to the figure labels, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the essence of the invention; interpreting them as any kind of additional limitation would be contrary to the spirit of the invention.

Claims

1. A vacuum defoaming device for an oil tank, comprising an oil tank (1), wherein an oil inlet (2), an oil outlet (3), an air inlet (4), and an exhaust outlet (5) are formed on the oil tank (1), characterized in that, A partition (6) is fixedly connected inside the oil tank (1) to divide the oil tank (1) into a first oil compartment (7) and a second oil compartment (8). A piston (9) is slidably installed on the partition (6). By driving the piston (9) to move, the actual cavity size of the first oil compartment (7) and the second oil compartment (8) is changed so as to form a negative pressure in the first oil compartment (7) or the second oil compartment (8) to discharge the dissolved air in the oil and the air in the oil tank (1) together to the outside of the oil tank (1). A piston drive unit (10) is installed on the oil tank (1). The piston drive unit (10) extends into the oil tank (1) and connects with the piston (9) to drive the piston (9) to move. The oil inlet (2), oil outlet (3), air inlet (4) and exhaust outlet (5) form an oil tank channel assembly. Two oil tank channel assemblies are formed on the oil tank (1), and the oil tank channel assemblies are formed on both sides of the partition (6). The oil inlet (2), air inlet (4), and exhaust outlet (5) are formed on the top of the oil tank (1), and the oil outlet is formed on the bottom of the oil tank (1).

2. The oil tank vacuum defoaming device according to claim 1, characterized in that, The piston drive component (10) includes a piston rod (12) and a drive cylinder (11). The drive cylinder (11) is fixedly installed on the oil tank (1), and the piston rod (12) is installed inside the drive cylinder (11) and fixedly connected to the piston (9).

3. The oil tank vacuum defoaming device according to claim 1, characterized in that, An oil inlet valve assembly is installed on the oil inlet (2), an exhaust valve assembly is installed on the exhaust port (5), an oil outlet valve (13) is installed on the oil outlet (3), and an air inlet valve (14) is installed on the air inlet (4).

4. The oil tank vacuum defoaming device according to claim 3, characterized in that, The oil inlet valve assembly includes an oil inlet valve (15) and an oil inlet pipe (16). The oil inlet valve (15) is installed on the oil inlet (2), and the oil inlet pipe (16) is installed on the oil inlet valve (15).

5. The oil tank vacuum defoaming device according to claim 3, characterized in that, The exhaust valve assembly includes an exhaust valve (17) and a condenser filter (18), with the exhaust valve (17) mounted on the exhaust port (5) and the condenser filter (18) mounted on the exhaust valve (17).

6. The oil tank vacuum defoaming device according to claim 1, characterized in that, The first oil tank (7) and the second oil tank (8) have the same volume.

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