Split type draught hood
By adding partitions to the exhaust hood of the electroplating tank body and dividing the air duct into multiple cavitys, the problem of unsmooth exhaust of large-sized tank body is solved, and the overall uniform exhaust of the tank body is achieved through the deflector and flushing The board ensures environmental protection and safety of cleaning.
Patent Information
- Application Number
- CN202420848526.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-23
AI Technical Summary
When the size of the electroplating tank body is greater than or equal to 3 meters, the single-chamber ventilation duct causes the exhaust air at the end of the exhaust hood to be unsmoothly, affecting the exhaust effect.
A split air exhaust hood is designed, by adding partitions inside the air duct to separate them into multiple cavitys. Each cavity controls a part of the ventilation holes, and the multiple cavity parts are merged at the beginning to ensure the overall drainage of large-sized grooves. The wind effect is good.
Through the split design, the air exhaust in front and back of the tank body is ensured to be evenly exhausted, avoiding the problem of unsmooth air exhaust caused by the fixed cross-section of the air duct, and the environmental protection and safety of cleaning is achieved through the deflector and the flushing plate.
Smart Images
Figure CN222226630U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exhaust hoods, in particular to a split exhaust hood. Background Art
[0002] At present, the size of the existing electroplating tanks on the market is relatively small, and the length of the tank is usually less than or equal to 3 meters. The exhaust hood is made into one piece with the tank. The advantage of this is that the overall processing amount of the tank is reduced, but it will cause the tank to protrude and waste in transportation. When the size of the electroplating tank is less than or equal to 3 meters, the manufacturer only needs to make a single-cavity ventilation duct to achieve the exhaust of the tank. The exhaust of the front and rear parts is slightly affected, but the exhaust effect can be guaranteed to remain unchanged;
[0003] However, when the size of the electroplating tank is greater than or equal to 3 meters, although the single-chamber ventilation duct can realize the extraction and exhaust of the tank, due to the fixed cross-section of the duct, it will cause the air to be extracted smoothly near the air valve during extraction and exhaust, but the air at the end of the exhaust hood will not be extracted smoothly. Therefore, we need to consider how to solve this problem. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a split exhaust hood is proposed, which adds a partition inside the original air duct to divide the inside of the air duct into multiple cavities, each cavity only controls the exhaust and suction of a part of the ventilation holes, and the multiple cavities are merged at the starting end to solve the problem of poor exhaust at the end of the exhaust hood due to the excessively long air duct of a large-sized trough body, thereby ensuring that the overall exhaust and suction effect of the large-scale trough body is good.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A split exhaust hood comprises a collecting box, wherein a connection port is provided at the upper end of the collecting box, a liquid outlet pipe is connected to the inner bottom of the collecting box, an air duct is fixedly connected to one side of the collecting box, a plurality of exhaust ports are provided on one side of the air duct, a partition is fixedly connected to the inside of the air duct, the partition divides the inside of the air duct into a first exhaust chamber and a second exhaust chamber in sequence, and a flushing plate is fixedly connected to one side of the air duct.
[0007] Preferably, a control valve is installed in the liquid outlet pipe.
[0008] Preferably, a guide plate is fixedly connected to the upper end of the air duct, and the guide plate is arranged at an angle.
[0009] Preferably, a positioning plate is fixedly connected to a lower end of one side of the air duct.
[0010] Preferably, the partition is composed of a horizontal plate and a vertical plate, and a plurality of flushing holes are provided on the horizontal plate and the vertical plate.
[0011] Preferably, the cross-sectional area of the collecting box is the sum of the cross-sectional area of the first exhaust chamber and the cross-sectional area of the second exhaust chamber.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. By setting a partition, the air duct is divided into a first exhaust chamber and a second exhaust chamber. The first exhaust chamber and the second exhaust chamber are responsible for the gas extraction of the corresponding exhaust ports respectively. The cross-sectional area of the collection box is the sum of the cross-sectional area of the first exhaust chamber and the cross-sectional area of the second exhaust chamber, so as to ensure that the pressure of the entire air supply process does not decay, so that the air is evenly extracted from the front and back of the tank body;
[0014] 2. A guide plate is provided. The guide plate is tilted so that the guide plate and the exhaust hood are combined into one. The liquid falling from the workpiece is guided back to the corresponding trough to avoid pollution. A flushing plate is provided, which cooperates with the liquid outlet pipe and other structures. After working for a long time, the inside of the exhaust hood can be cleaned manually to achieve environmental protection and safety of the entire cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of a split type exhaust hood proposed by the utility model;
[0016] Figure 2 for Figure 1 A first cross-sectional schematic diagram of
[0017] Figure 3 for Figure 1 A second cross-sectional schematic diagram of .
[0018] In the figure: 1 is a collecting box, 2 is a connecting port, 3 is a liquid outlet pipe, 4 is an air duct, 5 is a guide plate, 6 is a positioning plate, 7 is an air outlet, 8 is a partition plate, 9 is a first air exhaust chamber, 10 is a second air exhaust chamber, and 11 is a flushing plate. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0020] Reference Figure 1-Figure 3, a split type exhaust hood comprises a collection box 1, a connection port 2 is provided at the upper end of the collection box 1, the connection port 2 is an air valve connection port, a liquid outlet pipe 3 is connected to the inner bottom of the collection box 1, a control valve is installed in the liquid outlet pipe 3, an air duct 4 is fixedly connected to one side of the collection box 1, a guide plate 5 is fixedly connected to the upper end of the air duct 4, the guide plate 5 is inclined, the lower part is inclined toward the inside of the tank body, the inter-slot guide plate 5 and the tank body exhaust hood are combined into one, when the workpiece moves above the exhaust hood, if there is dripping liquid, it can directly flow back to the corresponding tank body, a positioning plate 6 is fixedly connected to the lower end of one side of the air duct 4, the positioning plate 6 is separately made according to the size of the tank body, and the left and right sides ensure that the air duct 4 is centered in place, and the part of the protruding part facing the straight surface is close to the inside of the tank body, so as to ensure that the exhaust hood is in place in the width direction;
[0021] Among them, a plurality of exhaust ports 7 are provided on one side of the air duct 4. To ensure the exhaust effect, the height of the exhaust ports 7 is relatively close to the slot, and some of the flushing will flow out. However, when the exhaust hood is flushed, the corresponding tank body is in a stopped working state, and protective preparations can be made in advance. After the flushing is completed and the relevant matters are cleaned up, the process tank will work again, so it will not affect the operation of the tank body. A partition 8 is fixedly connected to the inside of the air duct 4. The partition 8 is composed of a horizontal plate and a vertical plate. A plurality of flushing holes are provided on the horizontal plate and the vertical plate. The partition 8 divides the inside of the air duct 4 into a first exhaust chamber 9 and a second exhaust chamber 10 in sequence. The cross-sectional area of the summary box 1 is the sum of the cross-sectional area of the first exhaust chamber 9 and the cross-sectional area of the second exhaust chamber 10.
[0022] Among them, a part of the exhaust port 7 is located at the first exhaust chamber 9, and the other part of the exhaust port 7 is located at the second exhaust chamber 10. The first exhaust chamber 9 and the second exhaust chamber 10 are respectively responsible for the gas extraction of the corresponding exhaust port 7, so as to avoid the gas of the exhaust port 7 located at the first exhaust chamber 9 and the gas of the exhaust port 7 located at the second exhaust chamber 10 from interfering with each other. Finally, all the gases are sucked into the main air duct of the production line through the collecting box 1, so as to ensure that the pressure of the whole air supply process is not attenuated, and realize uniform exhaust of the whole length of the tank body. A flushing plate 11 is fixedly connected to one side of the air duct 4, and the flushing plate 11 is opened on the operating surface of the tank body. After working for a long time, the relevant staff can manually clean the inside of the exhaust hood, and the flushing liquid is discharged to the corresponding sewage pipeline through the flushing plate 9→partition plate 8→liquid outlet pipe 3, so as to realize the environmental protection and safety of the whole cleaning process.
[0023] After the hood is installed, the exhaust hood can be exhausted, and the exhaust port 7 located at the first exhaust chamber 9 allows the gas to enter the collecting box 1 through the first exhaust chamber 9, and the exhaust port 7 located at the second exhaust chamber 10 allows the gas to enter the collecting box 1 through the second exhaust chamber 10. In this way, the gas at the exhaust port 7 located at the first exhaust chamber 9 and the gas at the exhaust port 7 located at the second exhaust chamber 10 can be prevented from interfering with each other. Finally, all the gas is sucked into the main air duct of the production line through the collecting box 1. In this way, the pressure of the entire air supply process is not attenuated, and uniform exhaust is achieved throughout the entire length of the trough. After long-term use, relevant staff can manually flush the interior of the exhaust hood, and the flushing liquid enters the air duct 4 through the flushing plate 11, and then through the partition plate 8. Finally, by opening the control valve in the liquid outlet pipe 3, the flushing liquid is discharged from the liquid outlet pipe 3 to the corresponding sewage pipe, thereby achieving environmental protection and safety of the entire cleaning process.
[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A split exhaust hood, comprising a collecting box (1), characterized in that: The upper end of the collecting box (1) is provided with a connection port (2), the inner bottom of the collecting box (1) is connected to a liquid outlet pipe (3), one side of the collecting box (1) is fixedly connected to an air duct (4), one side of the air duct (4) is provided with a plurality of air exhaust ports (7), the interior of the air duct (4) is fixedly connected to a partition plate (8), the partition plate (8) divides the interior of the air duct (4) into a first air exhaust chamber (9) and a second air exhaust chamber (10) in sequence, and one side of the air duct (4) is fixedly connected to a flushing plate (11).
2. A split type exhaust hood according to claim 1, characterized in that: A control valve is installed in the liquid outlet pipe (3).
3. A split type exhaust hood according to claim 1, characterized in that: The upper end of the air duct (4) is fixedly connected with a guide plate (5), and the guide plate (5) is arranged in an inclined manner.
4. A split type exhaust hood according to claim 1, characterized in that: A positioning plate (6) is fixedly connected to a lower end of one side of the air duct (4).
5. The split type exhaust hood according to claim 1, characterized in that: The partition (8) is composed of a horizontal plate and a vertical plate, and a plurality of flushing holes are provided on the horizontal plate and the vertical plate.
6. The split type exhaust hood according to claim 1, characterized in that: The cross-sectional area of the collecting box (1) is the sum of the cross-sectional area of the first exhaust chamber (9) and the cross-sectional area of the second exhaust chamber (10).