Oil filtering and water removing device of oil screw vacuum pump

Abstract

The utility model relates to the technical field of fluid purification and separation, and discloses an oil filtering and water removing device of an oil screw vacuum pump, which comprises a bottom plate, a tank body mounted on one side of the top of the bottom plate, an oil-water interface instrument mounted on one side of the outer wall of the tank body, a coalescence separation filter element mounted in the tank body, and a connecting pipe I penetrating through and fixedly connected with one side of the tank body, according to the utility model, the primarily purified lubricating oil stably enters the coalescence separation filter element through the connecting pipe I, the coalescence separation filter element fully utilizes the unique hydrophilic characteristic of the coalescence separation filter element, water mixed in the lubricating oil is skillfully gathered into fine water drops, the water drops slowly settle to the bottom of the tank body to be accumulated under the action of gravity, and meanwhile, the water drops are separated from the tank body. The oil-water interface instrument accurately monitors the height of the water level in real time, once the water level reaches a preset standard, the drainage electromagnetic valve responds immediately, the drainage channel is opened, and accumulated water is efficiently drained through the drainage pipe to achieve good water removal performance.

Description

Technical Field

[0001] This utility model relates to the field of fluid purification and separation technology, specifically to an oil screw vacuum pump oil filtration and water removal device. Background Technology

[0002] As a type of positive displacement vacuum pump, the lubricating oil in an oil-lubricated screw vacuum pump plays a crucial role in lubrication, cooling, and sealing. Its quality directly affects the pump's lifespan and pumping efficiency. Currently, most oil-lubricated screw vacuum pumps on the market have impurity removal capabilities but lack water removal capabilities. In actual operation, the pumped gas contains water vapor dissolved in the oil, causing emulsification of the pump oil, reducing lubrication, cooling, and sealing performance, preventing the pump from reaching its rated output, and in severe cases, threatening the safe operation of the equipment. This patent adds an oil filtration system to the existing lubrication system, using single-stage or multi-stage filter elements. It utilizes different filter media's affinity for water and oil, as well as different filtration precisions, to separate impurities, water, and oil, achieving oil cleanliness.

[0003] The oil circuit of the screw vacuum pump is equipped with a filter element to remove insoluble impurities that enter the lubricating oil due to mechanical wear and other reasons.

[0004] The disadvantages of existing technology are: the impurity removal filter element cannot remove moisture from the lubricating oil system of the screw vacuum pump; the screw vacuum pump itself has a weak water removal capacity, and when the pumped gas contains a large amount of water vapor, the water vapor dissolves in the lubricating oil, causing the oil to emulsify; after the lubricating oil of the screw vacuum pump is emulsified, it will cause a decrease in lubrication, cooling and sealing performance, reducing the rated output of the vacuum pump. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an oil screw vacuum pump oil filtration and water removal device, which has the advantage of good water removal effect and solves the problem of weak water removal capacity of the oil screw vacuum pump itself mentioned in the background technology.

[0006] To achieve the aforementioned good water removal effect, this utility model provides the following technical solution: including a base plate, a tank is installed on one side of the top of the base plate, an oil-water interface meter is installed on one side of the outer wall of the tank, a coalescing separator filter element is installed inside the tank, a connecting pipe is connected through and fixedly connected to one side of the tank, and the connecting pipe is fixedly connected to the coalescing separator filter element on one side of the base plate, a pre-filter is installed at the end of the connecting pipe away from the coalescing separator filter element, an inlet isolation valve is installed at the end of the pre-filter away from the connecting pipe, and an L-shaped pipe is fixedly connected to the end of the inlet isolation valve away from the pre-filter;

[0007] Oil supply assembly; the oil supply assembly includes an oil filter pump, which is installed on the top of the base plate on the side away from the tank body, and the end of the L-shaped pipe away from the inlet isolation valve is installed on the top side of the oil filter pump.

[0008] As a further embodiment of this utility model: the oil supply assembly also includes an oil tank, with a connecting pipe two fixedly connected to the top of the oil tank, and the other end of the connecting pipe two fixedly connected to the bottom side of the oil filter pump. A connecting pipe three is fixedly connected to the side of the oil tank away from the connecting pipe two. An oil screw vacuum pump head is fixedly connected to the end of the connecting pipe three away from the oil tank, and the oil screw vacuum pump head is fixedly connected to the base plate. A connecting pipe four is fixedly connected to the end of the oil screw vacuum pump head away from the connecting pipe three. An outlet isolation valve is installed at the end of the connecting pipe four away from the oil screw vacuum pump head. A connecting pipe five is installed at the end of the outlet isolation valve away from the connecting pipe four, and the end of the connecting pipe five away from the outlet isolation valve passes through the tank body and is fixedly connected.

[0009] As a further embodiment of this utility model: a discharge pipe is fixedly connected to one side of the bottom of the base plate, a drainage sensor is installed on one side of the outer wall of the discharge pipe, and a drainage solenoid valve is installed in the middle of the outer wall of the discharge pipe.

[0010] As a further improvement of this utility model: a support frame is installed on the top of the base plate near the side of the connecting pipe four, and the support frame one cooperates with the connecting pipe four.

[0011] As a further improvement of this utility model: support frame 2 and support frame 3 are installed on the top of the base plate near the side of the connecting pipe 5, and support frame 2 and support frame 3 cooperate with the connecting pipe 5.

[0012] As a further improvement of this utility model: a clamp is installed on the top of the base plate near the second connecting pipe, and the clamp cooperates with the second connecting pipe.

[0013] As a further improvement of this utility model: a support frame is installed on the top of the base plate near the pre-filter and the inlet isolation valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the pre-purified lubricating oil smoothly enters the coalescing separator filter element through the connecting pipe. The coalescing separator filter element makes full use of its unique hydrophilic properties to cleverly gather the water mixed in the lubricating oil into fine water droplets. Under the action of gravity, these water droplets slowly settle to the bottom of the tank and accumulate. At the same time, the oil-water interface instrument monitors the water level in real time and accurately. Once the water level reaches the preset standard, the drain solenoid valve will respond immediately, open the drain channel, and efficiently discharge the accumulated water through the discharge pipe to achieve good water removal. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the interior of the tank of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamp of this utility model.

[0019] In the diagram: 1. Base plate; 2. Tank body; 201. Coalescing separator filter element; 202. Connecting pipe one; 203. Pre-filter; 204. Inlet isolation valve; 205. L-shaped pipe; 3. Oil filter pump; 301. Connecting pipe two; 302. Oil tank; 303. Connecting pipe three; 304. Oil screw vacuum pump head; 305. Connecting pipe four; 306. Outlet isolation valve; 307. Connecting pipe five; 4. Discharge pipe; 401. Drainage sensor; 402. Drainage solenoid valve; 5. Oil-water interface meter; 6. Support frame one; 7. Support frame two; 8. Support frame three; 9. Clamp; 10. Support frame four. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 In this embodiment of the invention, a base plate 1 is included. A tank 2 is mounted on one side of the top of the base plate 1. An oil-water interface meter 5 is mounted on one side of the outer wall of the tank 2 to detect the water level. A coalescing separator filter element 201 is installed inside the tank 2. A connecting pipe 202 is connected through and fixedly to one side of the tank 2. The connecting pipe 202 passes through one side of the base plate 1 and is fixedly connected to the coalescing separator filter element 201. A pre-filter 203 is installed at the end of the connecting pipe 202 away from the coalescing separator filter element 201. An inlet isolation valve 204 is installed at the end of the pre-filter 203 away from the connecting pipe 202. An oil supply assembly consisting of an L-shaped pipe 205 is fixedly connected to the end of the base plate 1. The oil supply assembly includes an oil filter pump 3, which is installed on the top side of the base plate 1 away from the tank 2. The end of the L-shaped pipe 205 away from the inlet isolation valve 204 is installed on the top side of the oil filter pump 3. During operation, the lubricating oil in the oil tank 302 is pumped out by the oil filter pump 3 through the second connecting pipe 301. After passing through the fourth connecting pipe 305 and the inlet isolation valve 204, it enters the pre-filter 203 to remove insoluble substances in the lubricating oil. Then, it enters the coalescing separation filter element 201 through the first connecting pipe 202. The hydrophilicity of the coalescing separation filter element 201 is used to coalesce the water in the lubricating oil into water droplets, which then sink to the bottom of the tank 2 by gravity.

[0022] The oil supply assembly also includes an oil tank 302. A second connecting pipe 301 is fixedly connected to the top of the oil tank 302, and the other end of the second connecting pipe 301 is fixedly connected to the bottom side of the oil filter pump 3. A third connecting pipe 303 is fixedly connected to the side of the oil tank 302 away from the second connecting pipe 301. An oil screw vacuum pump head 304 is fixedly connected to the end of the third connecting pipe 303 away from the oil tank 302, and the oil screw vacuum pump head 304 is fixedly connected to the base plate 1. A fourth connecting pipe 305 is fixedly connected to the end of the oil screw vacuum pump head 304 away from the third connecting pipe 303. One end is equipped with an outlet isolation valve 306. The end of the outlet isolation valve 306 furthest from the connecting pipe 4 305 is connected to a connecting pipe 5 307. The end of the connecting pipe 5 307 furthest from the outlet isolation valve 306 passes through the tank body 2 and is fixedly connected. When the water level reaches the required level, the discharge pipe 4 discharges through the drain solenoid valve 402. The drainage process is detected by the drain sensor 401. The filtered lubricating oil enters the oil screw vacuum pump head 304 through the connecting pipe 5 307, the outlet isolation valve 306, and the connecting pipe 4 305, serving as the lubricating and sealing medium during operation. The oil screw vacuum pump head 304 removes gas during operation. Insoluble impurities and lubricating oil are discharged from the pump head to the oil tank 302, while gas is discharged from the oil tank 302, and the lubricating oil enters the next cycle.

[0023] A drain pipe 4 is fixedly connected to one side of the bottom of the base plate 1. A drain sensor 401 is installed on one side of the outer wall of the drain pipe 4. A drain solenoid valve 402 is installed in the middle of the outer wall of the drain pipe 4. When the water level reaches the required level, the drain pipe 4 and the drain solenoid valve 402 discharge water. The drainage process is detected by the drain sensor 401.

[0024] A support frame 6 is installed on the top of the base plate 1 near the side of the connecting pipe 305. The support frame 6 cooperates with the connecting pipe 305 and supports the connecting pipe 305. A support frame 7 and a support frame 8 are installed on the top of the base plate 1 near the side of the connecting pipe 307. The support frame 7 and the support frame 8 cooperate with the connecting pipe 307 and support the connecting pipe 307. A clamp 9 is installed on the top of the base plate 1 near the side of the connecting pipe 301. The clamp 9 cooperates with the connecting pipe 301 and fixes the connecting pipe 301. A support frame 10 is installed on the top of the base plate 1 near the area between the pre-filter 203 and the inlet isolation valve 204. The support frame 10 supports the pre-filter 203 and the inlet isolation valve 204.

[0025] The working principle of this utility model is as follows: During operation, the lubricating oil in the oil tank 302 is pumped out by the oil filter pump 3 through the connecting pipe 2 301, and then enters the pre-filter 203 through the connecting pipe 4 305 and the inlet isolation valve 204 to remove insoluble substances in the lubricating oil. Then, it enters the coalescing separation filter element 201 through the connecting pipe 1 202. The hydrophilicity of the coalescing separation filter element 201 is used to coalesce the water in the lubricating oil into water droplets, which sink to the bottom of the tank 2 by gravity. At the same time, the water level can be detected by the oil-water interface instrument 5. After the water level reaches the required level, it is discharged through the discharge pipe 4 and the drain solenoid valve 402. The drainage process is detected by the drain sensor 401. The filtered lubricating oil enters the oil screw vacuum pump head 304 through the connecting pipe 5 307, the outlet isolation valve 306, and the connecting pipe 4 305, serving as the lubrication and sealing medium during operation. The oil screw vacuum pump head 304 pumps out the gas during operation. Insoluble impurities and lubricating oil are discharged from the pump head to the oil tank 302, gas is discharged from the oil tank 302, and the lubricating oil enters the next cycle.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oil screw vacuum pump oil filtration and water removal device, comprising a base plate (1), characterized in that: A tank (2) is installed on one side of the top of the base plate (1). An oil-water interface meter (5) is installed on one side of the outer wall of the tank (2). A coalescing separator filter element (201) is installed inside the tank (2). A connecting pipe (202) is connected through and fixedly connected to one side of the tank (2). The connecting pipe (202) is connected through one side of the base plate (1) and fixedly connected to the coalescing separator filter element (201). A pre-filter (203) is installed at the end of the connecting pipe (202) away from the coalescing separator filter element (201). An inlet isolation valve (204) is installed at the end of the pre-filter (203) away from the connecting pipe (202). An L-shaped pipe (205) is fixedly connected to the end of the inlet isolation valve (204) away from the pre-filter (203). Oil supply assembly; the oil supply assembly includes an oil filter pump (3), which is installed on the top of the base plate (1) on the side away from the tank body (2), and the end of the L-shaped pipe (205) away from the inlet isolation valve (204) is installed on the top side of the oil filter pump (3).

2. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: The oil supply assembly also includes an oil tank (302). A connecting pipe two (301) is fixedly connected to the top of the oil tank (302), and the other end of the connecting pipe two (301) is fixedly connected to the bottom side of the oil filter pump (3). A connecting pipe three (303) is fixedly connected to the side of the oil tank (302) away from the connecting pipe two (301). An oil screw vacuum pump head (304) is fixedly connected to the end of the connecting pipe three (303) away from the oil tank (302), and the oil screw vacuum pump head (304) is connected to the base plate. (1) Fixed connection: The end of the oil screw vacuum pump head (304) away from the connecting pipe three (303) is fixedly connected to the connecting pipe four (305). The end of the connecting pipe four (305) away from the oil screw vacuum pump head (304) is equipped with an outlet isolation valve (306). The end of the outlet isolation valve (306) away from the connecting pipe four (305) is equipped with a connecting pipe five (307). The end of the connecting pipe five (307) away from the outlet isolation valve (306) passes through the tank body (2) and is fixedly connected.

3. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: A drain pipe (4) is fixedly connected to one side of the bottom of the base plate (1). A drain sensor (401) is installed on one side of the outer wall of the drain pipe (4). A drain solenoid valve (402) is installed in the middle of the outer wall of the drain pipe (4).

4. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: A support frame (6) is installed on the top of the base plate (1) near the side of the connecting pipe (305), and the support frame (6) cooperates with the connecting pipe (305).

5. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: The top of the base plate (1) is equipped with a support frame two (7) and a support frame three (8) on the side near the connecting pipe five (307), and the support frame two (7) and the support frame three (8) cooperate with the connecting pipe five (307).

6. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: A clamp (9) is installed on the top of the base plate (1) near the second connecting pipe (301), and the clamp (9) cooperates with the second connecting pipe (301).

7. The oil filter and water removal device for the screw vacuum pump according to claim 1, characterized in that: A support frame four (10) is installed on the top of the base plate (1) near the pre-filter (203) and the inlet isolation valve (204).

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