For hydrogen peroxide metering delivery device

Abstract

This utility model provides a device for quantitative hydrogen peroxide delivery, including a storage tank, a buffer tank on one side of the storage tank, a return gas pipe and a conveying pipe between the storage tank and the buffer tank, and a liquid delivery and return gas mechanism on the return gas pipe and the conveying pipe. A production tank is located on one side of the buffer tank, and a conveying mechanism is provided between the buffer tank and the production tank. No gas backflow occurs when the storage tank delivers liquid to the buffer tank or vice versa, preventing gas from flowing back from the downstream tank to the upstream tank. Downstream production involves organic matter or metal ion dust that can react with hydrogen peroxide, causing a rapid decrease in the concentration in the storage tank, consuming hydrogen peroxide, and generating solid impurities. The gas pressure in the storage tank, buffer tank, and production tank is stable, and the device avoids the negative pressure that can occur in upstream tanks due to pump transportation, which could cause delivery interruptions, flow fluctuations, and affect output accuracy.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen peroxide transportation, and in particular to a device for quantitative hydrogen peroxide delivery. Background Technology

[0002] When hydrogen peroxide is transported to the production tank as a raw material, its instability and oxidizing properties determine that there are clear safety hazards during the transportation process. High-concentration hydrogen peroxide poses an even greater risk. Hydrogen peroxide needs to be transported under sealed conditions and must meet quantitative output requirements.

[0003] When hydrogen peroxide is transported from the storage tank to the production tank, if it is delivered through only one valve pipeline, the hydrogen peroxide will be delivered to the downstream tank. At the same time, the gas in the downstream tank will flow back to the upstream tank. The downstream production involves organic matter or metal ion dust, which will enter the upstream tank with the flow-back gas and react with the hydrogen peroxide. This will cause the concentration in the storage tank to drop rapidly, which will not only consume hydrogen peroxide, but also generate solid impurities.

[0004] When hydrogen peroxide is transported from storage tanks to production tanks, if it is transported by pump, it will create negative pressure in the upstream tank, causing interruption of transportation, flow fluctuations, and affecting output accuracy. Hydrogen peroxide is chemically unstable, and the negative pressure environment makes it easy to attract impurities, which will accelerate its decomposition and thus induce safety hazards. Utility Model Content

[0005] This invention provides a device for quantitatively conveying hydrogen peroxide, solving the problem that when hydrogen peroxide is transported from storage tank to production tank via valve pipeline, the gas in the downstream tank will flow back to the upstream tank. Downstream production involves organic matter or metal ion dust, which will enter the upstream tank with the flowing gas and react with the hydrogen peroxide, causing the concentration in the storage tank to drop rapidly. If the hydrogen peroxide is transported by pump, it will create negative pressure in the upstream tank, causing the delivery to be interrupted, the flow rate to fluctuate, and the output accuracy to be greatly affected. It is also easy to suck in impurities, which poses a safety hazard.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hydrogen peroxide quantitative conveying device, including a storage tank, a buffer tank on one side of the storage tank, a return gas pipe and a conveying pipe between the storage tank and the buffer tank, a liquid conveying and return gas mechanism on the return gas pipe and the conveying pipe, a production tank on one side of the buffer tank, and a conveying mechanism between the buffer tank and the production tank.

[0007] In a preferred embodiment, the infusion return gas mechanism includes a first cylinder and two opening and closing mechanisms. The opening and closing mechanisms include two outer plates, with a rotating valve disc between the two outer plates. The valve disc is equipped with a rotating rod, and both rotating rods are rotatably connected to the first cylinder.

[0008] In the preferred embodiment, a circular groove is provided on one side of the outer plate, and the two outer plates are connected by multiple bolts. The two ends of the valve disc rotate against the circular grooves of the two outer plates respectively.

[0009] In the preferred embodiment, the outer plate is provided with a through hole and a rotating hole, the valve plate is provided with a liquid hole and a rotating shaft, the rotating shaft abuts against the rotating hole, and the rotating hole is rotatably connected to the rotating rod.

[0010] In the preferred embodiment, one of the opening and closing mechanisms is connected to the material conveying pipe through a through hole, and the other opening and closing mechanism is connected to the air return pipe through a through hole.

[0011] In the preferred embodiment, a rotating seat is provided at one end of the first cylinder, and a compressed air pipe is provided at the top of the buffer tank.

[0012] In a preferred embodiment, the conveying mechanism includes an outer cylinder, a second cylinder, and a sleeve. The outer cylinder contains a rotating core, one end of which is provided with a rotating plate, and one end of the second cylinder is rotatably connected to the rotating plate.

[0013] In the preferred embodiment, the bottom of the conveying mechanism is provided with a bracket, the bracket is provided with a support plate, the second cylinder is rotatably connected to the support plate, and a third cylinder is provided at one end of the bracket, the piston of the third cylinder is pushed and pulled against the sleeve.

[0014] In the preferred embodiment, the core has three liquid channels, and one end of the core has a connecting shaft that connects to the rotating plate.

[0015] In the preferred embodiment, a discharge valve is provided between the conveying mechanism and the production tank.

[0016] The beneficial effects of this utility model are as follows: When the air pumps on the conveying mechanism and compressed air pipe stop operating, the first cylinder of the liquid delivery and air return mechanism is driven, causing the two rotating rods to rotate, which in turn causes the two valve discs to rotate, opening the two opening and closing mechanisms. This allows hydrogen peroxide in the storage tank to be delivered from the delivery pipe to the buffer tank. Air at the top of the buffer tank flows into the storage tank through the air return pipe. Once the buffer tank is filled to the required amount, the liquid delivery and air return mechanism is closed. Simultaneously, the second cylinder of the conveying mechanism is driven to connect the buffer tank with the sleeve.

[0017] Simultaneously drive the third cylinder and the air pump at the top of the compressed air pipe to input air into the buffer tank, so that the liquid in the buffer tank is delivered to the sleeve. When the predetermined delivery amount is reached, stop the movement of the third cylinder.

[0018] The discharge valve is opened, simultaneously driving the second cylinder to connect the buffer tank to the production tank. The buffer tank is then disconnected from the conveying mechanism, pushing the third cylinder to transfer the liquid from the sleeve into the production tank, completing a single liquid transport. Throughout the entire conveying process, the conveying mechanism can deliver a fixed quantity of liquid per transaction, meeting the quantitative requirements of the production tank.

[0019] During the overall transportation process, there is no gas backflow when the storage tank transports liquid to the buffer tank or the buffer tank transports liquid to the production tank. This avoids the phenomenon that gas in the downstream tank will flow back to the upstream tank. If the downstream production involves organic matter or metal ion dust, it will enter the upstream tank with the backflow gas and react with hydrogen peroxide, causing the concentration in the storage tank to drop rapidly. This not only consumes hydrogen peroxide but also generates solid impurities.

[0020] During the overall transportation process, the gas pressure in the storage tank, buffer tank, and production tank remains stable. At the same time, transportation via pumps is avoided, as it would create negative pressure in the upstream tanks, causing transportation interruptions, flow fluctuations, and affecting output accuracy. Hydrogen peroxide is chemically unstable, and a negative pressure environment makes it easy for impurities to be drawn in, which would exacerbate its decomposition and potentially lead to safety hazards. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a side view of the overall structure of this utility model; Figure 2 This is an axonometric view of the infusion return gas mechanism of this utility model; Figure 3 This is an exploded view of a partial structure of this utility model; Figure 4 This is a side view of a partial structure of this utility model; Figure 5 This is an axonometric view of the core of this utility model; In the diagram: Storage tank 1; Liquid delivery and gas return mechanism 2; Opening and closing mechanism 201; Rotating rod 202; First cylinder 203; Rotating seat 2031; Outer plate 204; Through hole 2041; Rotating hole 2042; Valve disc 205; Liquid hole 2051; Rotating shaft 2052; Buffer tank 3; Support 4; Support plate 401; Conveying mechanism 5; Outer cylinder 501; Core cylinder 502; Liquid channel 5021; Connecting shaft 5022; Sleeve 503; Second cylinder 504; Rotating plate 505; Third cylinder 6; Production tank 7; Compressed air pipe 8; Discharge valve 9; Gas return pipe 10; Material delivery pipe 11. Detailed Implementation

[0022] Example 1: like Figure 1-5The device for quantitative hydrogen peroxide delivery includes a storage tank 1, a buffer tank 3 on one side of the storage tank 1, a return air pipe 10 and a conveying pipe 11 between the storage tank 1 and the buffer tank 3, and a liquid return air mechanism 2 on the return air pipe 10 and the conveying pipe 11. A production tank 7 is located on one side of the buffer tank 3, and a conveying mechanism 5 is located between the buffer tank 3 and the production tank 7. With this structure, when the device delivers hydrogen peroxide to the production tank 7 for production operations, the air pumps on the conveying mechanism 5 and the compressed air pipe 8 stop operating, driving the first cylinder 203 of the liquid return air mechanism 2 to rotate the two rotating rods 202, causing the two valve discs 205 to rotate, opening the two opening and closing mechanisms 201. This allows the hydrogen peroxide in the storage tank 1 to be delivered from the conveying pipe 11 to the buffer tank 3. Air at the top of the buffer tank 3 flows back to the storage tank 1 through the return air pipe 10. When the buffer tank 3 reaches the required amount, the liquid return air mechanism 2 is closed. Simultaneously, the second cylinder 504 of the conveying mechanism 5 is driven to connect the buffer tank 3 to the sleeve 503.

[0023] Simultaneously drive the third cylinder 6 and the air pump at the top of the compressed air pipe 8 to input air into the buffer tank 3 through the compressed air pipe 8, so that the liquid in the buffer tank 3 is delivered to the sleeve 503. When the predetermined delivery amount is reached, stop the movement of the third cylinder 6.

[0024] Open the discharge valve 9 and simultaneously drive the second cylinder 504 to connect the buffer tank 3 to the production tank 7. Disconnect the buffer tank 3 from the conveying mechanism 5 and push the third cylinder 6 to deliver the liquid in the sleeve 503 into the production tank 7, completing a single liquid transport. During the overall conveying process, the conveying mechanism 5 can achieve a single quantitative conveying, meeting the quantitative requirements of the production tank 7.

[0025] During the overall transportation process, there is no gas backflow when the storage tank 1 transports liquid to the buffer tank 3 or when the buffer tank 3 transports liquid to the production tank 7. This avoids the phenomenon that gas in the downstream tank will flow back into the upstream tank. If the downstream production involves organic matter or metal ion dust, it will enter the upstream tank with the backflow gas and react with hydrogen peroxide, causing the concentration in the storage tank to drop rapidly. This not only consumes hydrogen peroxide but also generates solid impurities.

[0026] During the overall transportation process, the gas pressure in storage tank 1, buffer tank 3 and production tank 7 is stable. At the same time, transportation by pump is avoided, which would cause negative pressure in the upstream tank, resulting in transportation interruption, flow fluctuation, and affecting output accuracy. The chemical properties of hydrogen peroxide are unstable, and the negative pressure environment makes it easy to attract impurities, which would aggravate its decomposition and induce safety hazards.

[0027] In a preferred embodiment, the infusion return gas mechanism 2 includes a first cylinder 203 and two opening and closing mechanisms 201. Each opening and closing mechanism 201 includes two outer plates 204, with a rotating valve disc 205 positioned between the two outer plates 204. A rotating rod 202 is mounted on the valve disc 205, and both rotating rods 202 are rotatably connected to the first cylinder 203. With this structure, In the preferred embodiment, a circular groove is provided on one side of the outer plate 204, and the two outer plates 204 are connected by multiple bolts. The valve disc 205 rotates by abutting against the circular grooves of the two outer plates 204 at both ends. With this structure, the outer plate 204 has a circular structure, and the valve disc 205 rotates between the two outer plates 204.

[0028] In a preferred embodiment, the outer plate 204 has a through hole 2041 and a rotating hole 2042, and the valve plate 205 has a liquid hole 2051 and a rotating shaft 2052. The rotating shaft 2052 abuts against the rotating hole 2042, and the rotating hole 2042 is rotatably connected to the rotating rod 202. With this structure, the first cylinder 203 is installed between the two opening and closing mechanisms 201.

[0029] When the through hole 2041 is aligned with the liquid hole 2051, the opening and closing mechanism 201 is opened. When the valve disc 205 is rotated and the through hole 2041 is not aligned with the liquid hole 2051, the opening and closing mechanism 201 is closed.

[0030] In a preferred embodiment, one of the opening and closing mechanisms 201 is connected to the feed pipe 11 through a through hole 2041, and the other opening and closing mechanism 201 is connected to the return gas pipe 10 through a through hole 2041. This structure drives the first cylinder 203 of the liquid delivery and return gas mechanism 2, causing the two rotating rods 202 to rotate, which in turn causes the two valve discs 205 to rotate, opening the two opening and closing mechanisms 201, allowing hydrogen peroxide in the storage tank 1 to be delivered from the feed pipe 11 to the buffer tank 3.

[0031] Drive the first cylinder 203 to open the two opening and closing mechanisms 201, so that the hydrogen peroxide in the storage tank 1 is transported from the conveying pipe 11 to the buffer tank 3. The air at the top of the buffer tank 3 flows into the storage tank 1 through the return air pipe 10. One end of the conveying pipe 11 is connected to the bottom of the storage tank 1, and the other end of the conveying pipe 11 is connected to the top of the buffer tank 3. One end of the return air pipe 10 is connected to the top of the storage tank 1, and the other end of the return air pipe 10 is connected to the top of the buffer tank 3.

[0032] In the preferred embodiment, a rotating seat 2031 is provided at one end of the first cylinder 203, and a compressed air pipe 8 is provided at the top of the buffer tank 3. With this structure, the compressed air pipe 8 is connected to a compressed air source via an air pump. When the buffer tank 3 delivers liquid to the sleeve 503, the air pump on the compressed air pipe 8 is turned on to ensure stable air pressure in the overall device.

[0033] In a preferred embodiment, the conveying mechanism 5 includes an outer cylinder 501, a second cylinder 504, and a sleeve 503. The outer cylinder 501 contains a rotating core 502, with a rotating plate 505 at one end. One end of the second cylinder 504 is rotatably connected to the rotating plate 505. This structure drives the second cylinder 504 of the conveying mechanism 5 to connect the buffer tank 3 to the sleeve 503. Simultaneously, it drives the third cylinder 6 and the air pump at the top of the compressed air pipe 8, causing the compressed air pipe 8 to input air into the buffer tank 3, thus conveying the liquid in the buffer tank 3 to the sleeve 503. The movement of the third cylinder 6 stops when the predetermined conveying volume is reached. The discharge valve 9 is opened, and the second cylinder 504 is simultaneously driven to connect the buffer tank 3 to the production tank 7. The buffer tank 3 is disconnected from the conveying mechanism 5, pushing the third cylinder 6 to convey the liquid in the sleeve 503 to the production tank 7, completing a single liquid transport.

[0034] In the preferred embodiment, the bottom of the conveying mechanism 5 is provided with a bracket 4, the bracket 4 is provided with a support plate 401, the second cylinder 504 is rotatably connected to the support plate 401, and one end of the bracket 4 is provided with a third cylinder 6, the piston of the third cylinder 6 is abutted against the sleeve 503 and extends and retracts.

[0035] In a preferred embodiment, the core 502 is provided with three liquid channels 5021, and one end of the core 502 is provided with a connecting shaft 5022, which is connected to the rotating plate 505. This structure drives the second cylinder 504 to rotate the core 502. When the top liquid channel 5021 is connected to the buffer tank 3, the side liquid channel 5021 is connected to the sleeve 503, and the bottom liquid channel 5021 abuts against the bottom of the inner wall of the outer cylinder 501, the buffer tank 3 is connected to the sleeve 503, and the buffer tank 3 is disconnected from the production tank 7.

[0036] When the top liquid channel 5021 rotates to a horizontal position and connects with the sleeve 503, the side liquid channel 5021 rotates to abut against the bottom of the inner wall of the outer cylinder 501, and the bottom liquid channel 5021 rotates to a horizontal position and connects with the discharge valve 9, the buffer tank 3 is disconnected from the sleeve 503, and the sleeve 503 is connected to the production tank 7.

[0037] In the preferred embodiment, a discharge valve 9 is provided between the conveying mechanism 5 and the production tank 7.

[0038] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A device for quantitative delivery of hydrogen peroxide, characterized in that: It includes a storage tank (1), a buffer tank (3) on one side of the storage tank (1), a return gas pipe (10) and a conveying pipe (11) between the storage tank (1) and the buffer tank (3), a liquid return gas mechanism (2) on the return gas pipe (10) and the conveying pipe (11), a production tank (7) on one side of the buffer tank (3), and a conveying mechanism (5) between the buffer tank (3) and the production tank (7).

2. The hydrogen peroxide metering device according to claim 1, characterized in that: The infusion return gas mechanism (2) includes a first cylinder (203) and two opening and closing mechanisms (201). The opening and closing mechanism (201) includes two outer plates (204), and a rotating valve plate (205) is provided between the two outer plates (204). A rotating rod (202) is provided on the valve plate (205), and both rotating rods (202) are rotatably connected to the first cylinder (203).

3. The hydrogen peroxide metering device according to claim 2, characterized in that: The outer plate (204) has a circular groove on one side. The two outer plates (204) are connected by multiple bolts. The valve disc (205) rotates by abutting against the circular grooves of the two outer plates (204) at both ends.

4. The hydrogen peroxide metering device according to claim 3, characterized in that: The outer plate (204) is provided with a through hole (2041) and a rotating hole (2042), and the valve plate (205) is provided with a liquid hole (2051) and a rotating shaft (2052). The rotating shaft (2052) abuts against the rotating hole (2042), and the rotating hole (2042) is rotatably connected to the rotating rod (202).

5. The hydrogen peroxide metering device according to claim 2, characterized in that: one of them The opening and closing mechanism (201) is connected to the conveying pipe (11) through the through hole (2041), and another opening and closing mechanism (201) is connected to the return air pipe (10) through the through hole (2041).

6. The hydrogen peroxide metering device according to claim 2, characterized in that: The first cylinder (203) has a rotating seat (2031) at one end, and the top of the buffer tank (3) has a compressed air pipe (8).

7. The hydrogen peroxide metering device according to claim 1, characterized in that: The conveying mechanism (5) includes an outer cylinder (501), a second cylinder (504) and a sleeve (503). The outer cylinder (501) is provided with a rotating core (502). One end of the core (502) is provided with a rotating plate (505). One end of the second cylinder (504) is rotatably connected to the rotating plate (505).

8. The hydrogen peroxide metering device according to claim 7, characterized in that: The bottom of the conveying mechanism (5) is provided with a bracket (4), and a support plate (401) is provided on the bracket (4). The second cylinder (504) is rotatably connected to the support plate (401). A third cylinder (6) is provided at one end of the bracket (4). The piston of the third cylinder (6) is pushed and pulled against the sleeve (503).

9. The hydrogen peroxide metering device according to claim 7, characterized in that: The core (502) is provided with three liquid channels (5021), and one end of the core (502) is provided with a connecting shaft (5022), which is connected to the rotating plate (505).

10. The hydrogen peroxide metering device according to claim 1, characterized in that: A discharge valve (9) is provided between the conveying mechanism (5) and the production tank (7).

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