An apparatus for preventing emulsification of a hydraulic system

Abstract

This invention belongs to the field of hydraulic system maintenance technology, specifically relating to a device for preventing emulsification in hydraulic systems. It includes a valve body with a large, vertically connected channel inside. The upper end of the large channel is connected to an air filter, and the lower end is connected to a water collection box. A set of water / air separation channels is arranged before and after the large channel within the valve body. The water / air separation channels include a vertical gas channel, a horizontal water / air channel, a horizontal water channel, and a small oblique channel. A desiccant box is installed at the upper end of the gas channel, and the lower end of the gas channel passes through the water / air channel and connects to the small oblique channel. The water / air channel is above, connecting the gas channel and the large channel; the water channel is below, connecting the small oblique channel and the large channel. The upper end of the small oblique channel intersects with the water / air channel and the large channel, while the lower end is closed. This device allows for air exchange between the inside of the oil tank and the outside while preventing external water droplets from entering the oil tank.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic system maintenance technology, and specifically relates to a device for preventing emulsification in hydraulic systems. Background Technology

[0002] Maintaining hydraulic systems is crucial for extending system lifespan and improving product reliability. However, during system operation, especially in environments where hydraulic and water systems coexist, oil emulsification is one of the most common problems. The main cause of oil emulsification is the entry of water from the water system or flushing equipment into the hydraulic system, resulting in impure oil, insufficient system power, and in severe cases, damage to hydraulic components such as pumps and valves.

[0003] If the hydraulic system is properly sealed, the only interface between the system and the outside world is the air filter.

[0004] The existing hydraulic system has the following problems: the air filter is directly connected to the oil tank, which makes it easy for external flushing water or water from the water system to enter the hydraulic system through the small holes of the air filter. This can cause emulsification of the hydraulic system, damage hydraulic components such as pumps and valves, and hinder the reliable use of the equipment. Summary of the Invention

[0005] This invention addresses the problem that existing air filters, which are directly connected to the oil tank, allow external flushing water or water from the water system to easily enter the hydraulic system through the small holes in the air filter, leading to emulsification in the hydraulic system.

[0006] The present invention provides the following technical solution: a device for preventing emulsification of a hydraulic system, comprising a valve body; a large channel running vertically through the valve body, the upper end of the large channel being connected to an air filter and the lower end being connected to a water collection box, the water collection box being connected to the valve body through a detachable structure, and a set of water and air separation channels being arranged before and after the large channel in the valve body.

[0007] The water and gas separation channel includes a gas channel running vertically, a water and gas channel running horizontally, a water channel running horizontally, and a small oblique channel. A desiccant box is installed at the upper end of the gas channel, connecting it to the outside environment. The lower end of the gas channel passes through the water and gas channel and connects to the small oblique channel. The water and gas channel is at the top, connecting the gas channel and the main channel. The water channel is at the bottom, connecting the small oblique channel and the main channel. The upper end of the small oblique channel connects to both the water and gas channel and the main channel, while its lower end is closed. When the valve body rotates to the point where the small oblique channel is vertical, water accumulated in the small oblique channel overflows into the main channel through the water channel, and the desiccant box remains above the liquid surface.

[0008] Furthermore, each group of water and gas separation channels includes two gas channels, two water and gas channels, and two oblique-hole channels arranged side by side. One gas channel, one water and gas channel, and one oblique-hole channel are connected to form a triangle. The two oblique-hole channels in the same group share a water channel. The two oblique-hole channels are connected by a transverse channel. The water channel connects the transverse channel and the main channel.

[0009] Furthermore, the valve body is a one-piece structure, with gas passages, water and gas passages, oblique small channels and transverse channels drilled into the valve body surface to form them, and the external holes of the gas passages, water and gas passages, oblique small channels and transverse channels are sealed by expansion plugs.

[0010] Furthermore, the bottom surface of the valve body is provided with a groove around the outer perimeter of the large channel, and the water collection box is embedded in the groove. The water collection box is fastened to the valve body by screws, and the end faces of the valve body and the water collection box are sealed by a sealing ring.

[0011] Furthermore, the desiccant box includes an upper thread, a middle chamber, and a lower thread. The upper thread of the desiccant box is used to engage with a screwdriver, the middle chamber is used to store the desiccant, and the lower thread is used to securely connect with the upper threaded interface of the valve body.

[0012] Furthermore, a flange coaxial with the main channel is installed on the top surface of the valve body, and the flange is fixed to the top cover plate of the oil tank.

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

[0014] The present invention provides a device for preventing emulsification in a hydraulic system, which can allow air inside the oil tank to communicate with the outside while preventing water droplets from entering the oil tank. It is applicable to various complex working conditions such as oil tank being horizontal, forward-tilted, or backward-tilted. Attached Figure Description

[0015] Figure 1 This is a three-dimensional perspective view (rightward) of the present invention;

[0016] Figure 2 This is a three-dimensional perspective view (leftward) of the present invention;

[0017] Figure 3 This is a front perspective view of the present invention;

[0018] Figure 4 This is a perspective view of the valve body;

[0019] Figure 5 This is a schematic diagram of a desiccant box;

[0020] Figure 6 This is a schematic diagram of the installation of the present invention;

[0021] Figure 7A diagram showing the water and airflow directions when the fuel tank is operating horizontally.

[0022] Figure 8 A diagram showing the water and airflow directions when the fuel tank is tilted forward.

[0023] Figure 9 This is a diagram showing the direction of water and airflow when the fuel tank is tilted backward.

[0024] In the diagram: 1-Valve body; 1.1-Upper threaded interface; 1.2-Flange; 1.3-Large channel; 1.4-Slanted small channel; 1.5-Bottom mounting hole; 1.6-Gas channel; 1.7-Water and gas channels; 1.8-Water channel; 1.9-Transverse channel; 2-Water collection box; 3-Sealing ring; 4-Screw; 5-Desiccant box; 5.1-Upper thread; 5.2-Intermediate compartment; 5.3-Lower thread; 6-Air filter; 7-Plug; 8-Oil tank; 9-Oil; 10-Water droplet; 11-Air. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The diagram shows a device for preventing emulsification in a hydraulic system, comprising a valve body 1. The valve body 1 has a large, vertically connected channel 1.3. The upper port of the channel 1.3 is connected to an air filter 6, and the lower port is connected to a water collection box 2. The air filter 6 is a conventional product used in conjunction with the valve body 1. The water collection box 2 is connected to the valve body 1 via a detachable structure. The valve body 1 has a set of water and air separation channels arranged before and after the large channel 1.3. The water collection box 2 is used to collect water droplets entering the system from the outside and can be cleaned periodically.

[0027] The water and gas separation channel includes a gas channel 1.6 running vertically, a water and gas channel 1.7 running horizontally, a water channel 1.8 running horizontally, and a small oblique channel 1.4. A desiccant box 5 is installed at the upper end of the gas channel 1.6, and it connects to the outside environment through the desiccant box 5. The lower end of the gas channel 1.6 passes through the water and gas channel 1.7 and connects to the small oblique channel 1.4. The water and gas channel 1.7 is on top, connecting to the gas channel 1.6 and the main channel 1.3. The water channel 1.8 is on the bottom, connecting to the small oblique channel 1.4 and the main channel 1.3. The upper end of the small oblique channel 1.4 connects to the water and gas channel and the main channel 1.3, while its lower end is closed. When the valve body 1 rotates to the point where the small oblique channel 1.4 is vertical, the water accumulated in the small oblique channel 1.4 overflows into the main channel 1.3 through the water channel 1.8, and the desiccant box 5 is above the liquid surface.

[0028] Each group of water and gas separation channels includes two parallel gas channels 1.6, two water and gas channels 1.7, and two oblique-hole channels 1.4. One gas channel 1.6, one water and gas channel 1.7, and one oblique-hole channel 1.4 are connected to form a triangle. The two oblique-hole channels 1.4 in the same group share a water channel 1.8. The two oblique-hole channels 1.4 are connected by a transverse channel 1.9. The water channel 1.8 connects the transverse channel 1.9 and the main channel 1.3.

[0029] The valve body 1 is a one-piece structure. Gas passage 1.6, water and gas passage 1.7, oblique small channel 1.4, and transverse channel 1.9 are formed by drilling into the surface of the valve body 1. The external holes of gas passage 1.6, water and gas passage 1.7, oblique small channel 1.4, and transverse channel 1.9 are sealed by expansion plugs 7. The function of expansion plugs 7 is to seal the unused external interfaces of the valve body 1. Expansion plugs 7 are physically connected to the valve body 1 through an interference fit.

[0030] The bottom surface of the valve body 1 is provided with a groove on the outer periphery of the large channel 1.3. The water collection box 2 is embedded in the groove. The water collection box 2 is fastened to the valve body 1 by screws 4. The end faces of the valve body 1 and the water collection box 2 are sealed by sealing rings 3.

[0031] like Figure 5 As shown: The desiccant box 5 includes an upper thread 5.1, a middle chamber 5.2, and a lower thread 5.3. The upper thread 5.1 of the desiccant box 5 is used to engage with a screwdriver, the middle chamber 5.2 is used to store the desiccant, and the lower thread 5.3 is used to securely connect with the upper threaded interface 1.1 of the valve body 1. The desiccant can absorb splashed water droplets when the system experiences severe vibrations, providing a second level of protection for the system and preventing oil emulsification.

[0032] like Figure 6 As shown: A flange 1.2, coaxial with the large channel 1.3, is installed on the top surface of the valve body 1, and is fixed to the oil tank cover plate through the flange 1.2.

[0033] like Figure 7 , Figure 8 , Figure 9 As shown: The specific implementation process of a device for preventing emulsification in a hydraulic system according to this embodiment is as follows:

[0034] First, assemble the components of the present invention according to the above connection method. After the assembly is completed, inspect the valve body 1 to prevent situations where the expansion plug 7 is not tightly sealed or the threads of each component are not properly tightened.

[0035] Next, the invention is connected to the oil tank and installed via flange 1.2 in valve body 1.

[0036] like Figure 7 As shown: When the fuel tank is operating normally in a horizontal position, the less dense gas communicates with the air inside the fuel tank through the desiccant box 5, and water droplets entering the air filter 6 from the outside enter the water collection box 2 through the large channel 1.3 inside the valve body 1.

[0037] like Figure 8 As shown: When the oil tank tilts forward, the less dense gas communicates with the air inside the oil tank through the desiccant box 5, and the oblique hole small channel 1.4 becomes vertical. Water droplets entering the air filter 6 from the outside first stay at the bottom of the oblique hole small channel 1.4, and then enter the water collection box 2 through the transverse channel 1.9 and water channel 1.8 inside the valve body 1.

[0038] like Figure 9 As shown: When the oil tank tilts backward, the less dense gas communicates with the air inside the oil tank through the desiccant box 5, and the oblique hole small channel 1.4 becomes vertical. Water droplets entering the air filter 6 from the outside first stay at the bottom of the oblique hole small channel 1.4, and then enter the water collection box 2 through the transverse channel 1.9 and water channel 1.8 inside the valve body 1.

[0039] When severe jolts occur, small water droplets will splash onto the desiccant box 5. The desiccant can absorb a large number of water droplets, providing a second level of protection for the system and preventing oil emulsification.

[0040] 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.

Claims

1. A device for preventing emulsification in a hydraulic system, characterized in that: Includes valve body (1); a large channel (1.3) is arranged inside the valve body (1), the upper port of the large channel (1.3) is connected to the air filter (6), and the lower port is connected to the water collection box (2). The water collection box (2) is connected to the valve body (1) through a detachable structure. A set of water and air separation channels are arranged before and after the large channel (1.3) inside the valve body (1); The water and gas separation channel includes a gas channel (1.6) running vertically, a water and gas channel (1.7) running horizontally, a water channel (1.8) running horizontally, and a small oblique-hole channel (1.4). A desiccant box (5) is installed at the upper end of the gas channel (1.6), and the gas channel (1.6) is connected to the outside environment through the desiccant box (5). The lower end of the gas channel (1.6) passes through the water and gas channel (1.7) and connects to the small oblique-hole channel (1.4). The water and gas channel (1.7) is on top and is connected to the outside environment. Gas channel (1.6) and large channel (1.3), water channel (1.8) are at the bottom, water channel (1.8) connects to inclined hole small channel (1.4) and large channel (1.3); the upper port of inclined hole small channel (1.4) is connected to water and gas channel and large channel (1.3), and its lower port is closed; when the valve body (1) rotates to the vertical position of inclined hole small channel (1.4), the water accumulated in inclined hole small channel (1.4) overflows into large channel (1.3) through water channel (1.8), and desiccant box (5) is above the liquid surface.

2. The device for preventing emulsification in a hydraulic system according to claim 1, characterized in that: Each group of water and gas separation channels includes two gas channels (1.6), two water and gas channels (1.7), and two oblique-hole channels (1.4) arranged side by side. One gas channel (1.6), one water and gas channel (1.7), and one oblique-hole channel (1.4) are connected to form a triangle. The two oblique-hole channels (1.4) in the same group share a water channel (1.8). The two oblique-hole channels (1.4) are connected by a transverse channel (1.9). The water channel (1.8) connects the transverse channel (1.9) and the main channel (1.3).

3. The device for preventing emulsification in a hydraulic system according to claim 2, characterized in that: The valve body (1) is an integral structure. The gas channel (1.6), water and gas channel (1.7), oblique hole small channel (1.4) and transverse channel (1.9) are formed by drilling into the surface of the valve body (1). The external holes of the gas channel (1.6), water and gas channel (1.7), oblique hole small channel (1.4) and transverse channel (1.9) are sealed by expansion plug (7).

4. The device for preventing emulsification in a hydraulic system according to claim 3, characterized in that: The bottom surface of the valve body (1) is provided with a sink groove on the outer periphery of the large channel (1.3). The water collection box (2) is embedded in the sink groove. The water collection box (2) is fastened to the valve body (1) by screws (4). The end faces of the valve body (1) and the water collection box (2) are sealed by sealing rings (3).

5. The device for preventing emulsification in a hydraulic system according to claim 1, characterized in that: The desiccant box (5) includes an upper thread (5.1), a middle chamber (5.2) and a lower thread (5.3); the upper thread (5.1) is used to engage with a screwdriver, the middle chamber (5.2) is used to store desiccant, and the lower thread (5.3) is used to fasten to the upper threaded interface (1.1) of the valve body (1).

6. The device for preventing emulsification in a hydraulic system according to claim 1, characterized in that: The valve body (1) is equipped with a flange (1.2) coaxial with the large channel (1.3) on its top surface, and is fixed to the oil tank cover plate through the flange (1.2).

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