An oil drain device

Abstract

This utility model discloses an oil draining and maintenance device, including a housing, a water level sensor, and an oil level sensor. The housing includes a first chamber and a second chamber, with the upper and lower ends of the first and second chambers interconnected. The housing is provided with an overflow port, an oil overflow port, and a water inlet. The height of the oil overflow port is higher than that of the overflow port. The water level sensor and the oil level sensor are located in the second chamber. A liquid layer is provided inside the housing, with the liquid level height higher than the lower end of the partition. The liquid layer includes a first state, a second state, and a third state. In the first state, the liquid level of the liquid layer is lower than the overflow port, and the water level sensor and the oil level sensor are located on the liquid level of the liquid layer. In the second state, an oil layer is formed on top of the liquid layer in the second chamber, and the oil level sensor is located on the liquid level of the oil layer. In the third state, the liquid level of the liquid layer is flush with the oil overflow port, and the oil layer is discharged through the oil overflow port. This utility model can discharge the oil layer on the liquid layer without stopping the machine, thus performing automatic maintenance.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and more specifically, to an oil draining and maintenance device. Background Technology

[0002] In existing technologies, dyeing and printing equipment such as stenters generate exhaust gas during operation, which contains oil fumes. Before being discharged, the exhaust gas needs to be treated. Existing exhaust gas treatment equipment generally removes oil from the exhaust gas through methods such as circulating water spraying and filtration. There is a liquid layer at the bottom of the equipment box, where oil and water accumulate. As the operating time increases, the proportion of oil in the liquid layer increases, and the spraying and filtration effect becomes worse. It is necessary to drain and replace the liquid layer regularly, which requires stopping the machine for maintenance each time and consumes a lot of water resources. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an oil draining and maintenance device that can perform maintenance and oil draining without stopping the machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses an oil draining and maintenance device, including a housing, a water level sensor, and an oil level sensor. The housing has an internal partition that divides the interior into a first chamber and a second chamber. The upper and lower ends of the first and second chambers are interconnected. The housing has an overflow port, an oil overflow port, and a water inlet. The overflow port and the water inlet are located on the side wall of the first chamber, and the oil overflow port is located on the side wall of the second chamber. The oil overflow port is higher than the overflow port. The water level sensor and the oil level sensor are located within the second chamber. A liquid layer is formed inside the housing, with the liquid level higher than the lower end of the partition. The liquid layer includes a first state, a second state, and a third state. In the first state, the liquid level is lower than the overflow port, and the water level sensor and the oil level sensor are located on the surface of the liquid layer. In the second state, an oil layer is formed at the top of the liquid layer in the second chamber, and the oil level sensor is located on the surface of the oil layer. In the third state, the liquid level is flush with the oil overflow port, and the oil layer is discharged through the oil overflow port.

[0006] Furthermore, the housing is equipped with a nozzle located at the top of the first chamber, and a circulating water path is formed between the liquid layer and the nozzle.

[0007] Furthermore, in the second state, the height difference between the water level sensor and the oil level sensor is the thickness of the oil layer.

[0008] Furthermore, in the second state, the liquid level of the liquid layer in the second chamber is higher than the lower end of the partition.

[0009] Furthermore, the water level sensor and the oil level sensor are float-type liquid level sensors.

[0010] Furthermore, a first valve body is installed at the overflow port. When the first valve body is opened, the liquid layer is reset from the third state to the first state. In the first state and the second state, the first valve body is closed.

[0011] Furthermore, a second valve body is installed at the water inlet. When the second valve body is opened, the liquid layer changes from a second state to a third state. In the first and third states, the second valve body is closed.

[0012] Furthermore, it includes an oil storage tank, with the overflow port connected to the oil storage tank.

[0013] Furthermore, the oil overflow port is located on the side wall of the housing away from the first chamber.

[0014] Furthermore, the housing is provided with a drain port, and a third valve body is installed on the drain port. The height of the drain port is lower than that of the overflow port. The third valve body is closed in the first state, the second state, and the third state.

[0015] The beneficial effects of this utility model are:

[0016] This invention divides the tank into two chambers using a partition. The thickness of the oil layer is determined by the difference between the water level sensor and the oil level sensor in the second chamber, and the second valve is automatically triggered to open, expelling the oil layer at the top by raising the liquid level. The initial height of the liquid level is then adjusted through the overflow port, allowing the oil layer on the liquid layer to be discharged without stopping the machine. This automatically maintains the circulating water inside the tank and saves more water resources compared to completely draining and replacing the water. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first state in this embodiment.

[0018] Figure 2 This is a schematic diagram of the second state in this embodiment.

[0019] Figure 3 This is a schematic diagram of the third state in this embodiment.

[0020] Reference numerals in the attached diagram: 1. Housing; 11. Partition; 12. First chamber; 13. Second chamber; 14. Overflow outlet; 141. First valve body; 15. Oil overflow outlet; 16. Water inlet; 161. Second valve body; 17. Drain outlet; 171. Third valve body; 18. Nozzle; 2. Water level sensor; 3. Oil level sensor; 4. Oil storage tank; 5. Filter element; 101. Liquid layer; 102. Oil layer. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1-3 As shown, this embodiment discloses an oil draining and maintenance device, including a housing 1, a water level sensor 2, and an oil level sensor 3. The housing 1 has an internal partition 11 that divides the interior of the housing 1 into a first chamber 12 and a second chamber 13. The upper and lower ends of the first chamber 12 and the second chamber 13 are interconnected. Exhaust gas enters the first chamber 12 of the housing 1 from the outside through the air inlet, and then enters the second chamber 13 through the opening at the upper end of the partition 11. The second chamber 13 contains a horizontally arranged mounting plate and multiple filter elements 5, which are arranged in an array on the mounting plate. Exhaust gas can only leave the housing after passing through the filter elements 5. The body 1 has an exhaust vent at the rear end of the second chamber 13 to provide power for the flow of exhaust gas and the filter element 5. The filter element 5 is a candle filter element. When the exhaust gas passes through the filter element 5, it will adhere to the filter element 5, similar to the filtration principle of a range hood filter. When the exhaust gas passes through the filter element 5, oil droplets will condense at the filter element 5. The oil droplets will flow down the filter element 5 into the liquid layer 101 at the bottom of the body 1. The liquid layer 101 is provided inside the body 1. The liquid level of the liquid layer 101 is higher than the lower end of the partition 11, so that the exhaust gas can only flow through the top of the partition 11. The lower end of the partition 11 is connected to balance the liquid level between the first chamber 12 and the second chamber 13.

[0023] The housing 1 is equipped with a nozzle 18 located at the top of the first chamber 12. The nozzle 18 and the liquid layer 101 are connected by a pipe and pumped by a water pump. Most of the impurities in the exhaust gas have been treated by spraying in the exhaust gas transmission pipe. By the time they reach the housing 1, there are very few large particles of impurities, which will not affect the pumping circulation or block the nozzle 18. A circulating water path is formed between the liquid layer 101 and the nozzle 18. The exhaust gas entering the first chamber 12 will be partially carried away by the water mist sprayed from the nozzle 18, and the exhaust gas will be humidified at the same time. The liquid circulating in the first chamber 12 includes emulsified oil. The formation of a circulating water path in the first chamber 12 will not affect the liquid layer 101 in the second chamber 13, so that the oil layer 102 can be separated from the liquid layer 101 in the second chamber 13. The liquid layer 101 in the second chamber 13 is more stable, and oil droplets or liquid droplets dripping from the filter element 5 will not affect the stratification of the oil layer 102.

[0024] Water level sensor 2 and oil level sensor 3 are located in the second chamber 13. Water level sensor 2 and oil level sensor 3 are float-type liquid level sensors. Water level sensor 2 will only float on the water surface, and oil level sensor 3 will preferentially float on the oil surface.

[0025] The tank 1 is provided with an overflow port 14, an oil overflow port 15, and a water inlet 16. The overflow port 14 and the water inlet 16 are located on the side wall of the first chamber 12. The overflow port 14 is equipped with a first valve body 141 and is used to control the liquid level of the liquid layer 101. The water inlet 16 is equipped with a second valve body 161 and is used to raise the height of the liquid layer 101. The oil overflow port 15 is located on the side wall of the second chamber 13 and is located on the side wall of the tank 1 at the end away from the first chamber 12, so that the liquid level change caused by the spray in the first chamber 12 will not affect the smooth discharge of the oil layer 102 from the oil overflow port 15. The height of the oil overflow port 15 is higher than that of the overflow port 14.

[0026] Liquid layer 101 includes a first state, a second state, and a third state, such as Figure 1 As shown, in the first state and the second state, the first valve body 141 is closed. The first state is the initial state of the liquid layer 101. In the first state, the liquid level of the liquid layer 101 is lower than the overflow port 14. The water level sensor 2 and the oil level sensor 3 are located on the liquid surface of the liquid layer 101. The height difference between the water level sensor 2 and the oil level sensor 3 is 0. At this time, there is no oil layer 102 above the liquid layer 101 in the second chamber 13 or the oil layer 102 has been completely discharged.

[0027] like Figure 2As shown, in the second state, the filter element 5 in the second chamber 13 continuously filters the flue gas, and oil droplets from the filter element 5 fall onto the liquid layer 101 in the second chamber 13, forming an oil layer 102 on top of the liquid layer 101. The oil level sensor 3 is located on the surface of the oil layer 102. As the oil droplets accumulate, a difference occurs between the heights of the water level sensor 2 and the oil level sensor 3. The height difference between the water level sensor 2 and the oil level sensor 3 is the thickness of the oil layer 102. During the accumulation of the oil layer 102, the liquid level of the liquid layer 101 in the second chamber 13 must always be higher than the lower end of the partition 11 to prevent the oil layer 102 from crossing the partition 11 and entering the first chamber 12. In the first and second states, the circulating liquid layer 101 in the housing 1 is in a continuous consumption process. Due to the generation of the oil layer 102, the overall liquid level of the liquid layer 101 does not change much.

[0028] In the first and third states, the second valve 161 is closed. When the thickness of the oil layer 102 reaches a certain level, and the height difference between the water level sensor 2 and the oil level sensor 3 reaches the maximum or a set value, that is, when the lower liquid level of the oil layer 102 is about to approach the lower end of the partition 11, the automatic maintenance program is triggered by judging the height difference between the water level sensor 2 and the bottom of the tank 1. The second valve 161 is opened, and water is added from the outside, so that the liquid level of the liquid layer 101 continuously rises. The oil layer 102 located in the second chamber 13 is discharged outward when it reaches the overflow port 15. When the height difference between the water level sensor 2 and the oil level sensor 3 reaches 0, the second valve 161 is closed, and the liquid layer 101 changes from the second state to the third state.

[0029] like Figure 3 As shown, in the third state, the oil layer 102 has been completely discharged through the overflow port 15. The water level sensor 2 and the oil level sensor 3 are located on the surface of the liquid layer 101. The surface of the liquid layer 101 is flush with the overflow port 15. At this time, the first valve body 141 will be triggered to open, the overflow port 14 will output pressure, and the part of the liquid layer 101 above the overflow port 14 will be discharged through the overflow port 14. It can also discharge a small amount of oil on the liquid layer 101 located in the first chamber 12. After the liquid layer 101 is reset from the third state to the first state, the first valve body 141 will be closed.

[0030] More preferably, this embodiment also includes an oil storage tank 4, with an overflow port 15 connected to the oil storage tank 4. The oil storage tank 4 can collect waste oil for subsequent treatment. The tank body 1 is provided with a drain port 17, and a third valve body 171 is installed on the drain port 17. The height of the drain port 17 is lower than that of the overflow port 14. In the first, second, and third states, the third valve body 171 is closed. When the entire equipment needs maintenance and repair, the third valve body 171 can be opened to drain all the liquid layer 101 through the drain port 17.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An oil draining and maintenance device, characterized in that, Includes a housing (1), a water level sensor (2), and an oil level sensor (3). The housing (1) has an internal partition (11) that divides the interior of the housing (1) into a first chamber (12) and a second chamber (13). The upper and lower ends of the first chamber (12) and the second chamber (13) are interconnected. The housing (1) has an overflow port (14), an oil overflow port (15), and a water inlet (16). The overflow port (14) The water inlet (16) and the oil inlet (15) are located on the side wall of the first chamber (12), the oil overflow outlet (15) is located on the side wall of the second chamber (13), the height of the oil overflow outlet (15) is higher than that of the water overflow outlet (14), the water level sensor (2) and the oil level sensor (3) are located in the second chamber (13), the box body (1) is provided with a liquid layer (101), and the liquid level of the liquid layer (101) is higher than the lower end of the partition (11); The liquid layer (101) includes a first state, a second state, and a third state. In the first state, the liquid level of the liquid layer (101) is lower than the overflow port (14), and the water level sensor (2) and the oil level sensor (3) are located on the liquid surface of the liquid layer (101). In the second state, an oil layer (102) is formed on top of the liquid layer (101) located in the second chamber (13), and the oil level sensor (3) is located on the liquid surface of the oil layer (102). In the third state, the liquid level of the liquid layer (101) is flush with the oil overflow port (15), and the oil layer (102) is discharged through the oil overflow port (15).

2. The oil draining and maintenance device according to claim 1, characterized in that, The housing (1) is equipped with a nozzle (18) located at the top of the first chamber (12), and a circulating water path is formed between the liquid layer (101) and the nozzle (18).

3. The oil draining and maintenance device according to claim 1, characterized in that, In the second state, the height difference between the water level sensor (2) and the oil level sensor (3) is the thickness of the oil layer (102).

4. The oil draining and maintenance device according to claim 1, characterized in that, In the second state, the liquid level of the liquid layer (101) in the second chamber (13) is higher than the lower end of the partition (11).

5. The oil draining and maintenance device according to claim 1, characterized in that, The water level sensor (2) and the oil level sensor (3) are float-type liquid level sensors.

6. The oil draining and maintenance device according to claim 1, characterized in that, The overflow outlet (14) is equipped with a first valve body (141). When the first valve body (141) is opened, the liquid layer (101) is reset from the third state to the first state. In the first state and the second state, the first valve body (141) is closed.

7. The oil draining and maintenance device according to claim 1, characterized in that, The water inlet (16) is equipped with a second valve body (161). When the second valve body (161) is opened, the liquid layer (101) changes from a second state to a third state. In the first state and the third state, the second valve body (161) is closed.

8. The oil draining and maintenance device according to claim 1, characterized in that, It includes an oil storage tank (4), and the overflow port (15) is connected to the oil storage tank (4).

9. The oil draining and maintenance device according to claim 1, characterized in that, The oil overflow port (15) is located on the side wall of the box body (1) away from the first chamber (12).

10. The oil draining and maintenance device according to claim 1, characterized in that, The housing (1) is provided with an air vent (17), and a third valve body (171) is installed on the air vent (17). The height of the air vent (17) is lower than that of the overflow port (14). The third valve body (171) is closed in the first state, the second state, and the third state.

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