Leakage-proof solvent collecting device

Abstract

The utility model discloses a leakproof solvent collecting device which comprises a collecting tank, the top of the collecting tank is sleeved with a tank cover, the inner wall of the tank cover is fixedly communicated with a liquid pumping pipe, the inner wall of the liquid pumping pipe is in threaded connection with a plug, the bottom of the liquid pumping pipe is fixedly communicated with a stainless steel inner tank, and a hose is fixedly embedded in the top of the tank cover. One end of the hose is fixedly communicated with a vacuum pump, the other end of the hose is fixedly communicated with the outer wall of the stainless steel inner tank, and the top of the stainless steel inner tank is fixedly communicated with a gas inlet pipe. The metal corrugated pipe is in butt joint with the solvent reaction kettle, negative pressure is formed in the stainless steel inner tank by using the vacuum pump to extract air, volatile waste gas is effectively captured, and the collection process is ensured to be airtight and safe through secondary protection of the collection tank; the water pump drives cooling water to flow to contact with the outer wall of the stainless steel inner tank for heat exchange, so that high-temperature waste gas is quickly cooled and condensed, and the solvent recovery efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of solvent collection technology, and in particular to a leak-proof solvent collection device. Background Technology

[0002] Bismaleimide (BMI) resin is a high-performance thermosetting material widely used in aerospace, electronic packaging, and composite materials. Its synthesis, processing, and post-treatment often require the use of organic solvents (such as acetone, N-methylpyrrolidone, and dimethylformamide) for dissolution, cleaning, or purification. However, these solvents are typically volatile, flammable, and somewhat toxic. Leaks during solvent evaporation or heating and evaporation collection can not only cause environmental pollution but also pose risks of fire, explosion, or human health.

[0003] In the existing technology, traditional solvent collection methods (such as open containers, simple funnel collection, etc.) are difficult to effectively prevent solvent evaporation and leakage. Especially when dealing with BMI systems, residual monomers and oligomers may further increase the complexity of waste liquid. Therefore, we propose a leak-proof solvent collection device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a leak-proof solvent collection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A leak-proof solvent collection device includes a collection tank, a lid fitted on the top of the collection tank, a suction pipe fixedly connected to the inner wall of the lid, a plug threaded to the inner wall of the suction pipe, a stainless steel inner tank fixedly connected to the bottom of the suction pipe, a flexible tube fixedly embedded in the top of the lid, a vacuum pump fixedly connected to one end of the flexible tube, and the other end of the flexible tube fixedly connected to the outer wall of the stainless steel inner tank, a gas inlet pipe fixedly connected to the top of the stainless steel inner tank, a corrugated metal pipe fixedly connected to the top of the gas inlet pipe, a discharge pipe fixedly connected to the bottom of the stainless steel inner tank, a sealing plug threaded to the inner wall of the discharge pipe, and a cooling mechanism inside the collection tank.

[0007] Preferably, the cooling mechanism includes an inlet pipe and an outlet pipe. One end of the inlet pipe and the outlet pipe are fixedly connected to the outer wall of the collection tank, and the other end of the inlet pipe is fixedly connected to a water pump. The exhaust gas is cooled by setting up the cooling mechanism.

[0008] Preferably, the top of the collection tank is provided with an annular groove, and a rubber sealing ring is placed on the inner wall of the annular groove. The inner wall of the tank lid is pressed against the top of the rubber sealing ring, thereby increasing the sealing between the collection tank and the tank lid by setting the rubber sealing ring.

[0009] Preferably, a radar level gauge is fixedly embedded in the top of the stainless steel inner tank. The radar level gauge calculates the liquid level height by measuring the time difference between the transmission and reception of electromagnetic waves.

[0010] Preferably, the top of the can lid has a circular hole, and the inner wall of the circular hole is fixedly connected to the outer wall of the gas inlet pipe.

[0011] Preferably, an electronic valve is fixedly installed on the outer wall of the water outlet pipe, and the opening and closing of the water outlet pipe is controlled by the electronic valve.

[0012] Preferably, the bottom of the collection tank is fixedly connected to a bottom frame, which supports the collection tank.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution connects the solvent reactor to a metal bellows and uses a vacuum pump to create negative pressure in the stainless steel inner tank, effectively capturing the volatile waste gas. The secondary protection of the collection tank ensures a sealed and safe collection process. A water pump drives the flow of cooling water, which contacts the outer wall of the stainless steel inner tank for heat exchange, achieving rapid cooling and condensation of the high-temperature waste gas and improving solvent recovery efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional three-dimensional structural diagram of a leak-proof solvent collection device proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a leak-proof solvent collection device proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of a leak-proof solvent collection device proposed in this utility model;

[0019] Figure 4 This utility model proposes a leak-proof solvent collection device. Figure 2 A magnified structural diagram of part A in the diagram.

[0020] In the diagram: 1. Collection tank; 2. Rubber sealing ring; 3. Tank lid; 4. Liquid extraction pipe; 5. Base frame; 6. Plug; 7. Radar level gauge; 8. Stainless steel inner tank; 9. Hose; 10. Gas inlet pipe; 11. Metal bellows; 12. Discharge pipe; 13. Sealing plug; 14. Water inlet pipe; 15. Water outlet pipe; 16. Electronic valve. Detailed Implementation

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

[0022] Depend on Figures 1-4 As shown, a leak-proof solvent collection device is disclosed, including a collection tank 1. The top of the collection tank 1 has an annular groove, and a rubber sealing ring 2 is placed on the inner wall of the annular groove. The inner wall of the tank lid 3 is pressed against the top of the rubber sealing ring 2.

[0023] The top of the collection tank 1 is fitted with a tank cover 3. The inner wall of the tank cover 3 is fixedly connected to a liquid extraction pipe 4. The inner wall of the liquid extraction pipe 4 is threaded with a plug 6. The plug 6 can be rotated open to expose the top of the liquid extraction pipe 4. Existing solvent neutralizer (acidic absorbent) can be added to the stainless steel inner tank 8 in advance to directly neutralize the waste gas and reduce subsequent separate treatment steps.

[0024] A radar level gauge 7 (M363669) is fixedly embedded in the top of the stainless steel inner tank 8. The bottom of the liquid extraction pipe 4 is fixedly connected to the stainless steel inner tank 8. A flexible hose 9 is fixedly embedded in the top of the tank cover 3. A vacuum pump is fixedly connected to one end of the flexible hose 9. The other end of the flexible hose 9 is fixedly connected to the outer wall of the stainless steel inner tank 8. When the vacuum pump operates, it extracts the air from the stainless steel inner tank 8 through the flexible hose 9.

[0025] A gas inlet pipe 10 is fixedly connected to the top of the stainless steel inner tank 8. A round hole is opened at the top of the tank cover 3. The inner wall of the round hole is fixedly connected to the outer wall of the gas inlet pipe 10. A metal corrugated pipe 11 is fixedly connected to the top of the gas inlet pipe 10. A discharge pipe 12 is fixedly connected to the bottom of the stainless steel inner tank 8. A sealing plug 13 is threadedly connected to the inner wall of the discharge pipe 12. A bottom frame 5 is fixedly connected to the bottom of the collection tank 1. The bottom frame 5 supports the stainless steel inner tank 8.

[0026] The collection tank 1 is equipped with a cooling mechanism, which includes an inlet pipe 14 and an outlet pipe 15. The water after heat exchange is discharged through the outlet pipe 15. One end of the inlet pipe 14 and the outlet pipe 15 are fixedly connected to the outer wall of the collection tank 1. The other end of the inlet pipe 14 is fixedly connected to a water pump. An electronic valve 16 is fixedly installed on the outer wall of the outlet pipe 15.

[0027] Working principle: During use, one end of the metal bellows 11 is connected to the solvent reaction vessel. When the solvent evaporates, the generated waste gas is pumped through the hose 9 to create negative pressure inside the stainless steel inner tank 8. The waste gas is then drawn into the stainless steel inner tank 8 through the metal bellows 11 and the gas inlet pipe 10 for collection and treatment. Simultaneously, a water pump draws external water into the collection tank 1 through the water inlet pipe 14, and the water contacts the outer wall of the stainless steel inner tank 8 to cool the high-temperature waste gas. The water, after heat exchange, passes through an electronic valve. 16 Open and discharge from the outlet pipe 15. When the liquid level in the stainless steel inner tank 8 is high, the liquid level height is detected by the radar level gauge 7. When the waste liquid in the stainless steel inner tank 8 needs to be treated, open the tank cover 3 upwards to take out the stainless steel inner tank 8 and remove it from the collection tank 1 for separate treatment later. Alternatively, rotate the plug 6 to expose the top of the liquid extraction pipe 4, and add the existing solvent neutralizer (acidic absorbent) to the stainless steel inner tank 8 in advance to directly neutralize the waste gas and reduce the need for separate treatment later.

[0028] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof solvent collection device, comprising a collection tank (1), characterized in that, The top of the collection tank (1) is fitted with a tank cover (3), and the inner wall of the tank cover (3) is fixedly connected to a liquid extraction pipe (4). The inner wall of the liquid extraction pipe (4) is threadedly connected to a plug (6). The bottom of the liquid extraction pipe (4) is fixedly connected to a stainless steel inner tank (8). The top of the tank cover (3) is fixedly embedded with a flexible tube (9). One end of the flexible tube (9) is fixedly connected to a vacuum pump. The other end of the flexible tube (9) is fixedly connected to the outer wall of the stainless steel inner tank (8). The top of the stainless steel inner tank (8) is fixedly connected to a gas inlet pipe (10). The top of the gas inlet pipe (10) is fixedly connected to a metal corrugated pipe (11). The bottom of the stainless steel inner tank (8) is fixedly connected to a discharge pipe (12). The inner wall of the discharge pipe (12) is threadedly connected to a sealing plug (13). The inside of the collection tank (1) is equipped with a cooling mechanism.

2. The leak-proof solvent collection device according to claim 1, characterized in that, The cooling mechanism includes an inlet pipe (14) and an outlet pipe (15). One end of the inlet pipe (14) and the outlet pipe (15) are fixedly connected to the outer wall of the collection tank (1), and the other end of the inlet pipe (14) is fixedly connected to a water pump.

3. The leak-proof solvent collection device according to claim 1, characterized in that, The top of the collection tank (1) is provided with an annular groove, and a rubber sealing ring (2) is placed on the inner wall of the annular groove. The inner wall of the tank lid (3) is pressed against the top of the rubber sealing ring (2).

4. The leak-proof solvent collection device according to claim 1, characterized in that, A radar level gauge (7) is fixedly embedded in the top of the stainless steel inner tank (8).

5. The leak-proof solvent collection device according to claim 1, characterized in that, The top of the can lid (3) has a round hole, and the inner wall of the round hole is fixedly connected to the outer wall of the gas inlet pipe (10).

6. The leak-proof solvent collection device according to claim 2, characterized in that, An electronic valve (16) is fixedly installed on the outer wall of the water outlet pipe (15).

7. The leak-proof solvent collection device according to claim 1, characterized in that, The bottom of the collection tank (1) is fixedly connected to a bottom frame (5).

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