Ventilation buffer tank for preventing reaction liquid from being sucked back

Abstract

The utility model relates to a ventilation buffer tank capable of preventing reaction liquid from being sucked back, and relates to the technical field of reaction tanks. The device comprises a reaction tank, the upper end of the reaction tank is fixedly connected with a liquid suction pipe, a second fixing frame is arranged below the liquid suction pipe, the lower portion of the circumferential side of the liquid suction pipe is fixedly connected with a connecting pipe, a check valve is installed in the connecting pipe, an installation pipe is arranged in the connecting pipe, and the lower end of the installation pipe is fixedly connected with a suck-back buffer tank. A second fixing frame is fixedly connected to the circumferential side of the reaction tank, a first fixing frame is fixedly connected to the upper end of the second fixing frame, a placement disc is arranged below the suck-back buffer tank, three second springs are fixedly connected to the lower end of the placement disc, and the lower ends of the three second springs are all fixed to the second fixing frame; the weight of the liquid in the suck-back buffer tank can be visually seen, so that the liquid in the suck-back buffer tank can be conveniently and timely poured out, and the next liquid recovery is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction tanks, in particular to a ventilation buffer tank for preventing backflow of reaction liquid. Background Art

[0002] Reaction tanks are widely used in industries such as petroleum, chemical industry, food, medicine, pesticides, and scientific research. They are reaction devices used to complete chemical process such as polymerization, condensation, vulcanization, alkylation, hydrogenation, and many process of organic dyes and intermediates.

[0003] When adding liquid to the reaction tank, if the pressure in the reaction tank is too high, after stopping the liquid addition, liquid backflow will occur, contaminating the liquid raw materials. To prevent backflow from affecting the product stock solution, a backflow prevention tank is generally set up to store the backflow liquid and prevent the liquid from returning to the stock solution pipe during backflow. However, for some special liquids, the backflow prevention tank cannot be made of transparent tank materials, resulting in the inability to directly observe the liquid content in the backflow prevention tank. If the liquid in the backflow prevention tank is too much and not discharged in time, during the next backflow situation, it is easy to cause liquid overflow, affecting product production and contaminating the stock solution. Content of the Utility Model

[0004] In view of the deficiencies of the existing technology, the purpose of the utility model is to provide a ventilation buffer tank for preventing backflow of reaction liquid, which can directly observe the liquid content in the backflow prevention buffer tank and drain the liquid in the buffer tank in time to prevent affecting the effect of the next operation.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A ventilation buffer tank for preventing backflow of reaction liquid, including a reaction tank. A liquid suction pipe is fixedly connected to the upper end of the reaction tank. A second fixing frame is arranged below the liquid suction pipe. A connecting pipe is fixedly connected to the lower part of the circumferential side of the liquid suction pipe. A check valve is installed in the connecting pipe. An installation pipe is arranged in the connecting pipe. The lower end of the installation pipe is fixedly connected to a backflow prevention buffer tank. A second fixing frame is fixedly connected to the circumferential side of the reaction tank. A first fixing frame is fixedly connected to the upper end of the second fixing frame. A placement tray is arranged below the backflow prevention buffer tank. Three second springs are fixedly connected to the lower end of the placement tray, and the lower ends of the three second springs are all fixed to the second fixing frame.

[0007] By adopting the above technical solutions, the reagent tank, liquid suction pipe, reaction tank, backflow prevention buffer tank, connecting pipe, check valve, installation pipe, placement tray, and second springs can directly observe the weight of the liquid in the backflow prevention buffer tank according to the height of the backflow prevention buffer tank, facilitating the pouring out of the liquid in the backflow prevention buffer tank.

[0008] In a preferred embodiment, the present utility model can be further configured as follows: Three T-shaped rods are fixedly connected to the lower end of the placement tray, and all three T-shaped rods movably penetrate through the lower end of the second fixing frame. The three T-shaped rods are respectively located within three second springs.

[0009] By adopting the above technical solution, the T-shaped rods can improve the moving stability of the placement tray.

[0010] In a preferred embodiment, the present utility model can be further configured as follows: An installation ring is fixedly connected to the upper end of the installation pipe. The inner bottom wall of the installation ring is rotatably connected to a threaded pipe, and the threaded pipe is threadedly connected within the connection pipe.

[0011] By adopting the above technical solution, the cooperation of the installation pipe, the installation ring and the threaded pipe can drive the threaded pipe to be connected to the connection pipe.

[0012] In a preferred embodiment, the present utility model can be further configured as follows: Two delay plates are fixedly connected to the circumferential side of the first fixing frame. Clamping plates are slidably arranged on both delay plates. Clamping mechanisms are arranged within both delay plates, and the two groups of clamping mechanisms are respectively connected to the two clamping plates.

[0013] By adopting the above technical solution, the clamping plates can limit the anti-siphon buffer tank.

[0014] In a preferred embodiment, the present utility model can be further configured as follows: Each group of clamping mechanisms includes a rectangular groove, a screw rod and a first spring. The first spring is fixedly connected to one side wall of the rectangular groove. The clamping plate is fixedly connected to one side of the first spring. The screw rod is arranged on one side of the delay plate, and the screw rod threadedly penetrates through one side wall of the rectangular groove and abuts against one side of the clamping plate.

[0015] By adopting the above technical solution, the clamping mechanism can adjust the position of the clamping plate, can slightly clamp the anti-siphon buffer tank, and prevent the anti-siphon buffer tank from shaking and falling off.

[0016] In a preferred embodiment, the present utility model can be further configured as follows: Two sliding rods are fixedly connected between the side walls of the rectangular groove. The clamping plate is slidably connected to the circumferential sides of the two sliding rods.

[0017] By adopting the above technical solution, the sliding cooperation of the sliding rods and the clamping plate can improve the moving stability of the clamping plate.

[0018] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0019] 1. There is a medicine tank, a liquid suction pipe, a reaction tank, an anti-backflow buffer tank, a connecting pipe, a check valve, an installation pipe, a placement tray and a second spring. If backflow occurs in the reaction tank and the liquid suction pipe, the liquid in the reaction tank flows into the medicine tank through the liquid suction pipe. When the liquid passes through the connecting pipe, the liquid enters the anti-backflow buffer tank through the threaded pipe and the installation pipe. When the anti-backflow buffer tank moves slowly downward, it can timely remind the surrounding personnel that there is a problem with the air pressure between the reaction tank and the medicine tank and backflow occurs. Also, according to the height of the anti-backflow buffer tank, the weight of the liquid in the anti-backflow buffer tank can be visually seen, which is convenient for timely pouring out the liquid in the anti-backflow buffer tank to prevent affecting the next liquid recovery.

[0020] 2. There is a clamping mechanism, a clamping plate and a delay plate. Place the anti-backflow buffer tank on the placement tray, rotate the screw rod, and the screw rod pushes the clamping plate to move, making the clamping plate approach the anti-backflow buffer tank. The first spring is in a compressed state, which can slightly clamp the anti-backflow buffer tank to prevent it from shaking and falling off the first fixing frame. Description of the Drawings

[0021] Figure 1 is the three-dimensional view of this embodiment;

[0022] Figure 2 is the three-dimensional sectional view of this embodiment;

[0023] Figure 3 is this embodiment Figure 2 The enlarged view of part A in;

[0024] Figure 4 is this embodiment Figure 2 The enlarged view of part B in.

[0025] In the figure, 1. Medicine tank; 2. Liquid suction pipe; 3. Reaction tank; 4. Anti-backflow buffer tank; 5. First fixing frame; 6. Delay plate; 7. Clamping mechanism; 701. Rectangular groove; 702. Screw rod; 703. First spring; 704. Slide rod; 8. Clamping plate; 9. Placement tray; 10. Second fixing frame; 11. Second spring; 12. T-shaped rod; 13. Installation pipe; 14. Installation ring; 15. Threaded pipe; 16. Connecting pipe; 17. Check valve. Detailed Embodiment

[0026] The following further describes the present utility model in detail with reference to the drawings.

[0027] Embodiment:

[0028] Refer to Figures 1-4, a ventilation buffer tank for preventing backflow of reaction liquid disclosed by the present utility model includes a reaction tank 3. A liquid suction pipe 2 is fixedly connected to the upper end of the reaction tank 3. A second fixing frame 10 is arranged below the liquid suction pipe 2. A connecting pipe 16 is fixedly connected to the lower part of the circumferential side of the liquid suction pipe 2. A check valve 17 is installed in the connecting pipe 16. An installation pipe 13 is arranged in the connecting pipe 16. Preferably, the installation pipe 13 is a flexible pipe and can be set to be longer for the downward movement of the backflow buffer tank 4. The lower end of the installation pipe 13 is fixedly connected to the backflow buffer tank 4. A second fixing frame 10 is fixedly connected to the circumferential side of the reaction tank 3. The upper end of the second fixing frame 10 is fixedly connected to a first fixing frame 5. A placement tray 9 is arranged below the backflow buffer tank 4. Three second springs 11 are fixedly connected to the lower end of the placement tray 9, and the lower ends of the three second springs 11 are all fixedly connected to the second fixing frame 10. If backflow occurs in the reaction tank 3 and the liquid suction pipe 2, the liquid in the reaction tank 3 flows into the reagent tank 1 through the liquid suction pipe 2. When the liquid passes through the connecting pipe 16, the liquid enters the backflow buffer tank 4 through the threaded pipe 15 and the installation pipe 13. When the backflow buffer tank 4 slowly moves downward, it can timely remind the surrounding personnel that there is a problem with the air pressure between the reaction tank 3 and the reagent tank 1 and backflow occurs. Also, according to the height of the backflow buffer tank 4, the weight of the liquid in the backflow buffer tank 4 can be visually seen, which is convenient for timely emptying the liquid in the backflow buffer tank 4.

[0029] Three T-shaped rods 12 are fixedly connected to the lower end of the placement tray 9, and the three T-shaped rods 12 all movably penetrate through the lower end of the second fixing frame 10. The three T-shaped rods 12 are respectively located in the three second springs 11. The T-shaped rods 12 can improve the movement stability of the placement tray 9.

[0030] The upper end of the installation pipe 13 is fixedly connected to an installation ring 14. The inner bottom wall of the installation ring 14 is rotatably connected to a threaded pipe 15. The threaded pipe 15 is threadedly connected in the connecting pipe 16. Preferably, a sealing gasket can be arranged in the installation ring 14 to prevent liquid leakage between the threaded pipe 15 and the installation ring 14. An air outlet pipe and a gas check valve can be arranged on the connecting pipe 16 to discharge gas. Rotating the threaded pipe 15 can connect the threaded pipe 15 and the connecting pipe 16, which is convenient for disassembly.

[0031] Two delay plates 6 are fixedly connected to the circumferential side of the first fixing frame 5. Clamping plates 8 are slidably arranged on the two delay plates 6. Clamping mechanisms 7 are arranged in the two delay plates 6. Preferably, two immovable limiting plates are fixed to the upper end of the first fixing frame 5. The limiting plates cooperate with the clamping plates 8 to limit the backflow buffer tank 4, and at the same time, it does not delay the downward movement of the backflow buffer tank 4. The two clamping mechanisms 7 are respectively connected to the two clamping plates 8, and the clamping plates 8 can limit the backflow buffer tank 4.

[0032] Each clamping mechanism 7 includes a rectangular groove 701, a screw rod 702 and a first spring 703. The first spring 703 is fixedly connected to one side wall of the rectangular groove 701. A clamping plate 8 is fixedly connected to one side of the first spring 703. The screw rod 702 is arranged on one side of the delay plate 6, and the screw rod 702 threadedly penetrates through one side wall of the rectangular groove 701 and abuts against one side of the clamping plate 8. Place the backflow buffer tank 4 on the placement tray 9, rotate the screw rod 702, and the screw rod 702 pushes the clamping plate 8 to move, so that the clamping plate 8 approaches the backflow buffer tank 4, and the first spring 703 is in a compressed state, which can slightly clamp the backflow buffer tank 4 to prevent the backflow buffer tank 4 from shaking and falling off the first fixing frame 5.

[0033] Two sliding rods 704 are fixedly connected between the side walls of the rectangular groove 701. The clamping plate 8 is slidably connected to the circumferential sides of the two sliding rods 704. The sliding rods 704 and the clamping plate 8 are slidably matched, which can improve the moving stability of the clamping plate 8.

[0034] The implementation principle of the above embodiment is as follows: If backflow occurs in the reaction tank 3 and the liquid suction pipe 2, the liquid in the reaction tank 3 flows through the liquid suction pipe 2 into the reagent tank 1. When the liquid passes through the connecting pipe 16, the liquid enters the backflow buffer tank 4 through the threaded pipe 15 and the installation pipe 13. When the backflow buffer tank 4 slowly moves downward, it can timely remind the surrounding personnel that there is a problem with the air pressure between the reaction tank 3 and the reagent tank 1 and backflow occurs. It can also directly see the weight of the liquid in the backflow buffer tank 4 according to the height of the backflow buffer tank 4, which is convenient for timely pouring out the liquid in the backflow buffer tank 4.

[0035] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art.

[0036] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A ventilation buffer tank for preventing backflow of reaction liquid, comprising a reaction tank (3), characterized in that: The upper end of the reaction tank (3) is fixedly connected with a liquid suction pipe (2). A second fixing frame (10) is arranged below the liquid suction pipe (2). The lower part of the circumferential side of the liquid suction pipe (2) is fixedly connected with a connecting pipe (16). A check valve (17) is installed in the connecting pipe (16). An installation pipe (13) is arranged in the connecting pipe (16). The lower end of the installation pipe (13) is fixedly connected with a backflow buffer tank (4). The circumferential side of the reaction tank (3) is fixedly connected with a second fixing frame (10). The upper end of the second fixing frame (10) is fixedly connected with a first fixing frame (5). A placing tray (9) is arranged below the backflow buffer tank (4). Three second springs (11) are fixedly connected to the lower end of the placing tray (9), and the lower ends of the three second springs (11) are all fixed to the second fixing frame (10).

2. The ventilation buffer tank for preventing backflow of reaction liquid according to claim 1, characterized in that: Three T-shaped rods (12) are fixedly connected to the lower end of the placing tray (9), and the three T-shaped rods (12) all movably penetrate through the lower end of the second fixing frame (10). The three T-shaped rods (12) are respectively located in the three second springs (11).

3. The ventilation buffer tank for preventing backflow of reaction liquid according to claim 1, wherein: The upper end of the installation pipe (13) is fixedly connected with an installation ring (14). The inner bottom wall of the installation ring (14) is rotatably connected with a threaded pipe (15). The threaded pipe (15) is threadedly connected in the connecting pipe (16).

4. A ventilation buffer tank for preventing backflow of reaction liquid according to claim 1, characterized in that: Two delay plates (6) are fixedly connected to the circumferential side of the first fixing frame (5). Clamping plates (8) are slidably arranged on the two delay plates (6). Clamping mechanisms (7) are arranged in the two delay plates (6), and the two groups of clamping mechanisms (7) are respectively connected to the two clamping plates (8).

5. A ventilation buffer tank for preventing backflow of reaction liquid according to claim 4, characterized in that: Each group of clamping mechanisms (7) includes a rectangular groove (701), a screw rod (702) and a first spring (703). The first spring (703) is fixedly connected to one side wall of the rectangular groove (701). The clamping plate (8) is fixedly connected to one side of the first spring (703). The screw rod (702) is arranged on one side of the delay plate (6), and the screw rod (702) threadedly penetrates through one side wall of the rectangular groove (701) and abuts against one side of the clamping plate (8).

6. The ventilation buffer tank for preventing backflow of reaction liquid according to claim 5, characterized in that: Two sliding rods (704) are fixedly connected between the side walls of the rectangular groove (701). The clamping plate (8) is slidably connected to the circumferential sides of the two sliding rods (704).

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