Flat tube inner cavity cleaning device

Abstract

The utility model discloses a flat pipe inner cavity cleaning device which comprises a shell, a water pump and a spray head, the shell is provided with a water containing cavity, the water inlet end of the water pump is connected with the water containing cavity through a first pipeline, the water outlet end of the water pump is connected with the spray head through a second pipeline, and a first one-way valve is arranged on the second pipeline. The second pipeline located between the first one-way valve and the spray head is connected with an air pump through a third pipeline, and a second one-way valve is arranged on the third pipeline. Compared with the prior art, the nozzle can spray water flow to wash the interior of the flat pipe under the action of the water pump, and after washing is completed, the nozzle can spray air flow into the flat pipe under the action of the air pump, so that residual water in the flat pipe is blown out, and the flat pipe does not need to be erected for a long time for drainage and drying; the occupied field of the flat pipes is reduced, and the packaging efficiency of the flat pipes is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil cooler tube technology, and in particular to a flat tube inner cavity cleaning device. Background Technology

[0002] Oil cooler tubes are flat tubes with rectangular cross-sections. During production, the formed long flat tubes need to be cut into multiple sections. During the cutting process, some cutting debris will enter the interior of the flat tubes. Therefore, the interior of the flat tubes needs to be cleaned.

[0003] Existing flat tube internal cleaning devices generally use water flow to rinse the inside of the flat tube. However, some cleaning water remains on the inner wall of the flat tube after rinsing. Therefore, the flat tube needs to be placed vertically so that the residual cleaning water can be discharged under gravity. However, this method of draining cleaning water requires a long waiting time, which results in the need for a large temporary stacking space for the flat tube and affects packaging efficiency. Utility Model Content

[0004] The main purpose of this utility model is to provide a flat tube inner cavity cleaning device. The nozzle can spray water to rinse the inside of the flat tube under the action of a water pump. After rinsing, the nozzle can spray air into the flat tube under the action of an air pump, thereby blowing out the water remaining inside the flat tube. This prevents the flat tube from being stood upright for a long time to drain and dry, thus improving the packaging efficiency of the flat tube.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A flat tube inner cavity cleaning device includes a housing, a water pump, and a nozzle. The housing has a water-containing cavity. The water inlet of the water pump is connected to the water-containing cavity through a first pipe. The water outlet of the water pump is connected to the nozzle through a second pipe. A first one-way valve is provided on the second pipe. An air pump is connected to the second pipe between the first one-way valve and the nozzle through a third pipe. A second one-way valve is provided on the third pipe.

[0007] Furthermore, a collection trough is provided on the top of the shell, and the collection trough is connected to the water-containing cavity through a flow channel.

[0008] Furthermore, a limiting plate and a mesh plate are arranged sequentially from top to bottom inside the collection tank. A limiting groove is opened on the limiting plate, and both the second pipe and the third pipe are flexible hoses.

[0009] Furthermore, it also includes a linear drive device, the bottom drive end of which is fixedly connected to the nozzle.

[0010] Furthermore, U-shaped plates are fixed on opposite sides of the collection trough, and the limiting plate is engaged within the U-shaped plates.

[0011] Furthermore, a filter screen is provided at the water inlet end of the first pipe located within the water-containing cavity.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The nozzle of this invention can spray water to rinse the inside of the flat tube under the action of a water pump. After rinsing, the nozzle can spray air into the flat tube under the action of an air pump, thereby blowing out the water remaining inside the flat tube. This eliminates the need to stand the flat tube upright for a long time to drain and dry, reduces the space occupied by the flat tube, and improves the packaging efficiency of the flat tube.

[0014] The collection tank of this invention can collect the cleaning water inside the rinsing flat tube and transport the cleaning water back to the water chamber, so that the cleaning water can be reused.

[0015] The limiting plate of this utility model can keep the flat tube in a vertical state through the limiting through groove, so that when the linear drive device drives the nozzle to descend, the water outlet end of the nozzle can be inserted into the top opening of the flat tube without the need for manual operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a flat tube inner cavity cleaning device according to the present invention.

[0017] Figure 2 This is a top view schematic diagram of the housing of a flat tube inner cavity cleaning device according to the present invention.

[0018] Figure 3 This is a schematic diagram showing the connection between the limiting plate and the U-shaped plate of the flat tube inner cavity cleaning device of this utility model.

[0019] In the diagram: 1. Shell; 2. Mesh plate; 3. Limiting plate; 4. Water chamber; 5. Flow channel; 6. Water pump; 7. Filter screen; 8. Second pipe; 9. First pipe; 10. First check valve; 11. Air pump; 12. Nozzle; 13. Linear drive device; 14. U-shaped plate; 15. Limiting groove; 16. Second check valve; 17. Third pipe; 18. Collection tank. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-3As shown, a flat tube inner cavity cleaning device includes a housing 1, a water pump 6, and a nozzle 12. The housing 1 has a water-containing cavity 4 and a drain pipe for draining water from the water-containing cavity 4. A valve is installed on the drain pipe. The water inlet of the water pump 6 is connected to the water-containing cavity 4 through a first pipe 9, and the water outlet of the water pump 6 is connected to the nozzle 12 through a second pipe 8. The nozzle 12 corresponds to the shape of the opening at the end of the flat tube to be cleaned. A first one-way valve 10 is installed on the second pipe 8. The second pipe 8 located between the first one-way valve 10 and the nozzle 12 is connected to an air pump 11 through a third pipe 17. A second one-way valve 16 is installed on the third pipe 17.

[0022] In this embodiment, such as Figure 1 As shown, first, cleaning water is injected into the water chamber 4, then the water pump 6 is controlled to work, and the nozzle 12 is aligned with the opening at the end of the flat tube. At this time, the water pump 6 can spray the cleaning water through the nozzle 12 into the interior of the flat tube to clean the impurities inside the flat tube. After cleaning, the water pump 6 is turned off and the air pump 11 is turned on. At this time, the air pump 11 will deliver gas to the nozzle 12 through the third pipe 17, and then spray the airflow into the interior of the flat tube through the nozzle 12, thereby quickly blowing out the water remaining inside the flat tube and avoiding the need for a long waiting time for the flat tube to dry.

[0023] The second check valve 16 can prevent the medium in the second pipe 8 from entering the third pipe 17. Therefore, when the water pump 6 pumps water, the cleaning water will not enter the third pipe 17. The first check valve 10 can prevent the gas transported by the third pipe 17 from entering the water pump 6 through the second pipe 8, thereby ensuring that the gas transported by the air pump 11 can only be discharged from the nozzle 12.

[0024] Among them, such as Figure 1 As shown, a collection tank 18 is also provided on the top of the shell 1. The collection tank 18 is connected to the water chamber 4 through the flow channel 5. The bottom of the collection tank 18 is higher than the bottom of the water chamber 4. Furthermore, the liquid level in the water chamber 4 is lower than the bottom of the collection tank 18. When cleaning the inside of the flat tube, the end of the flat tube can be placed in the collection tank 18, so that the cleaning water inside the flat tube flows into the collection tank 18 and finally flows into the water chamber 4 through the flow channel 5.

[0025] Among them, such as Figure 1 and Figure 2As shown, a limiting plate 3 and a mesh plate 2 are arranged sequentially from top to bottom inside the collection tank 18. A limiting groove 15 is opened on the limiting plate 3. The second pipe 8 and the third pipe 17 are both flexible hoses. The shape of the limiting groove 15 corresponds to the shape of the flat tube. Therefore, the flat tube can be inserted into the limiting groove 15, and the bottom of the flat tube is located on the mesh plate 2. At this time, the position of the flat tube is determined, which makes it easy for personnel to align the nozzle 12 with the top opening of the flat tube. In addition, there is a gap between the mesh plate 2 and the bottom of the collection tank 18, so that the cleaning water can enter the flow channel 5 through the mesh.

[0026] Among them, such as Figure 1 As shown, it also includes a linear drive device 13, which is a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The bottom drive end of the linear drive device 13 is fixedly connected to the nozzle 12. The linear drive device 13 can drive the nozzle 12 to descend, so that the nozzle 12 contacts the top opening of the flat tube inserted into the limiting groove 15, thereby allowing the cleaning water to rinse the inside of the flat tube.

[0027] Among them, such as Figure 2 and Figure 3 As shown, U-shaped plates 14 are fixed on opposite sides of the collection trough 18, and the limiting plate 3 is engaged in the U-shaped plate 14. Therefore, the limiting plate 3 is easy to replace. According to different specifications of flat tubes, the matching limiting plate 3 can be replaced, thereby ensuring that the limiting through groove 15 on the limiting plate 3 can play a limiting role on the flat tube.

[0028] Among them, such as Figure 1 As shown, a filter screen 7 is installed at the water inlet end of the first pipe 9 located in the water-containing cavity 4. The filter screen 7 can intercept impurities in the water and prevent impurities from entering the water pump 6.

[0029] The working principle is as follows: First, cleaning water is injected into the water chamber 4. Then, the linear drive device 13 is fixed above the housing 1, ensuring that the nozzle 12 is aligned with the limiting groove 15. Next, the flat tube is inserted into the limiting groove 15, with its bottom contacting the mesh plate 2, thus making the flat tube vertical. Then, the linear drive device 13 drives the nozzle 12 to descend, so that the water outlet end of the nozzle 12 is inserted into the limiting groove 15. Then, the water pump 6 is controlled to work, so that it sprays the water in the water chamber 4 through the nozzle 12 into the flat tube, thereby cleaning the impurities inside the flat tube. During this process, the second one-way valve 16 can prevent the second tube from being inserted into the water chamber. Water from channel 8 enters the third pipe 17. After the flat tube is rinsed, the water pump 6 is turned off and the air pump 11 is turned on. The air pump 11 sprays air into the flat tube through the nozzle 12, which quickly blows out the water remaining inside the flat tube, avoiding the need for a long waiting time for the flat tube to dry. During this process, the first one-way valve 10 can prevent the gas delivered by the third pipe 17 from entering the water pump 6 through the second pipe 8, thus ensuring that the gas delivered by the air pump 11 can only be discharged from the nozzle 12. The cleaning water used to clean the flat tube will fall into the collection tank 18, and finally, it will enter the water chamber 4 through the flow channel 5 for subsequent reuse.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flat tube inner cavity cleaning device, comprising a housing (1), a water pump (6), and a nozzle (12), wherein the housing (1) has a water-containing cavity (4), the water inlet of the water pump (6) is connected to the water-containing cavity (4) through a first pipe (9), and the water outlet of the water pump (6) is connected to the nozzle (12) through a second pipe (8), characterized in that: The second pipe (8) is provided with a first check valve (10), and the second pipe (8) located between the first check valve (10) and the nozzle (12) is connected to an air pump (11) through a third pipe (17), and the third pipe (17) is provided with a second check valve (16).

2. The flat tube inner cavity cleaning device according to claim 1, characterized in that: The top of the shell (1) is also provided with a collection groove (18), which is connected to the water-containing cavity (4) through a flow channel (5).

3. The flat tube inner cavity cleaning device according to claim 2, characterized in that: The collection tank (18) is provided with a limiting plate (3) and a mesh plate (2) from top to bottom. A limiting through groove (15) is opened on the limiting plate (3). The second pipe (8) and the third pipe (17) are both flexible hoses.

4. The flat tube inner cavity cleaning device according to claim 3, characterized in that: It also includes a linear drive device (13), the bottom drive end of which is fixedly connected to the nozzle (12).

5. A flat tube inner cavity cleaning device according to claim 3 or 4, characterized in that: The collection trough (18) has U-shaped plates (14) fixed on opposite sides, and the limiting plate (3) is engaged in the U-shaped plates (14).

6. The flat tube inner cavity cleaning device according to claim 5, characterized in that: A filter screen (7) is provided at the water inlet end of the first pipe (9) located in the water-containing cavity (4).

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