Phosphorus trichloride hydrolysis reaction device

Abstract

The utility model relates to the technical field of phosphorus trichloride hydrolysis, in particular to a phosphorus trichloride hydrolysis reaction device. According to the technical scheme, the device comprises a hydrolysis box, a liquid inlet valve is fixedly installed on one side of the upper surface of the hydrolysis box, a uniform distribution pipe is fixedly connected to the end, located in the hydrolysis box, of the liquid inlet valve, a liquid outlet is formed in the lower surface of the uniform distribution pipe, and a second porous flow equalizing plate is fixedly installed in the uniform distribution pipe; a circulating water pump is fixedly mounted on the side, close to the liquid inlet valve, of the lower surface of the hydrolysis tank, a water supply pipe is fixedly connected to the tail end of an output pipe of the circulating water pump, the tail end of the water supply pipe is fixedly connected to the side, close to the liquid inlet valve, of the hydrolysis tank, and an inclined plate is fixedly mounted in the hydrolysis tank and close to the upper surface. In the phosphorus trichloride hydrolysis process, phosphorus trichloride is added into flowing water flow, heat accumulation in the hydrolysis reaction is avoided, and therefore potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus trichloride hydrolysis, in particular to a phosphorus trichloride hydrolysis reaction device. Background Art

[0002] Phosphorus trichloride is an inorganic compound mainly used to manufacture organophosphorus compounds. It produces phosphorous acid and hydrochloric acid through hydrolysis. The reaction equation is: PCL3+3H2O=H3PO3+3HC.

[0003] The hydrolysis reaction of phosphorus trichloride is an exothermic reaction, which generates a large amount of heat during the reaction. Therefore, when phosphorus trichloride is fixed at a certain location and added to water, the heat at that location will accumulate rapidly, posing a great safety hazard. For this reason, we propose a phosphorus trichloride hydrolysis reaction device. Utility Model Content

[0004] The utility model aims to provide a phosphorus trichloride hydrolysis reaction device, which has the advantages that during the process of phosphorus trichloride hydrolysis, phosphorus trichloride is added into a flowing water flow to avoid heat accumulation in the hydrolysis reaction, thereby eliminating safety hazards, and solves the problem that phosphorus trichloride is usually added into water at a fixed position to complete the hydrolysis reaction, so that the heat at the position accumulates quickly, which poses a great safety hazard.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a phosphorus trichloride hydrolysis reaction device, comprising a hydrolysis box, a liquid inlet valve is fixedly installed on one side of the upper surface of the hydrolysis box, the liquid inlet valve is located in the hydrolysis box. One end of the end is fixedly connected to a uniform distribution pipe, and the lower surface of the uniform distribution pipe is provided with a liquid outlet. A second multi-porous flow equalizing plate is fixedly installed inside the uniform distribution pipe. A circulating water pump is fixedly installed on the side of the lower surface of the hydrolysis box close to the liquid inlet valve, and the end of the circulating water pump output pipe is fixedly connected to a water supply pipe, and the end of the water supply pipe is fixedly connected to the side of the hydrolysis box close to the liquid inlet valve. An inclined plate is fixedly installed at a position close to the upper surface of the hydrolysis box, and a first multi-porous flow equalizing plate is fixedly installed on the side of the upper surface of the inclined plate close to the water supply pipe.

[0006] Preferably, a plurality of raised strips are equidistantly arranged on a side of the upper surface of the inclined plate facing away from the first porous flow equalizing plate.

[0007] Preferably, the end of the circulating water pump inlet pipe is fixedly connected to a side of the lower surface of the hydrolysis tank close to the circulating water pump.

[0008] Preferably, a drain valve is fixedly connected to one side of the outer surface of the hydrolysis box near the lower surface.

[0009] Preferably, the cross-section of the uniformly distributed tube is an inverted triangle.

[0010] Preferably, support legs are fixedly installed on the lower surface of the hydrolysis box near the four corners.

[0011] Preferably, a connecting pipe and a purification box are fixedly installed on the upper surface of the hydrolysis box, and the end of the connecting pipe is located inside the purification box, and an exhaust pipe is fixedly connected to the upper surface of the purification box.

[0012] Preferably, an aeration plate is fixedly connected to the end of the connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model achieves the effect of adding phosphorus trichloride into the flowing water flow during the hydrolysis of phosphorus trichloride by arranging a hydrolysis box, a circulating water pump, an inclined plate, a liquid inlet valve, a first porous flow-equalizing plate, a uniformly distributed pipe, a liquid outlet and a second porous flow-equalizing plate, so as to avoid heat accumulation in the hydrolysis reaction and eliminate potential safety hazards. The circulating water pump transports water in the hydrolysis box to the inclined plate, and the water flows evenly along the inclined plate after passing through the first porous flow-equalizing plate. The phosphorus trichloride enters the uniformly distributed pipe through the liquid inlet valve, is evenly discharged from the liquid outlet after passing through the second porous flow-equalizing plate, and falls onto the inclined plate, contacts, mixes and reacts with the water flowing on the inclined plate.

[0015] 2. The utility model provides raised strips to hinder the water and phosphorus trichloride flowing on the inclined plate, which is beneficial to the full mixing and reaction of water and phosphorus trichloride.

[0016] 3. The utility model achieves the effect of absorbing harmful hydrochloric acid mist generated in the hydrolysis of phosphorus trichloride and avoiding environmental pollution by arranging a purification box, a connecting pipe, an exhaust pipe and an aeration plate. The harmful hydrochloric acid mist generated in the hydrolysis of phosphorus trichloride is discharged into the purification box through the connecting pipe and the aeration plate, contacts with the alkaline liquid in the purification box and is absorbed by the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the partial main cross-sectional structure of the liquid inlet valve of the utility model.

[0021] Figure numerals: 1. Support leg; 2. Water supply pipe; 3. Hydrolysis box; 4. Liquid inlet valve; 5. Connecting pipe; 6. Exhaust pipe; 7. Purification box; 8. Circulating water pump; 9. Drain valve; 10. First multi-porous flow equalizing plate; 11. Inclined plate; 12. Raised strip; 13. Aeration plate; 14. Second multi-porous flow equalizing plate; 15. Uniform distribution pipe; 16. Liquid outlet. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1-Figure 4 As shown, a phosphorus trichloride hydrolysis reaction device proposed by the utility model includes a hydrolysis box 3, a liquid inlet valve 4 is fixedly installed on one side of the upper surface of the hydrolysis box 3, phosphorus trichloride enters the hydrolysis box 3 from the liquid inlet valve 4, one end of the liquid inlet valve 4 located inside the hydrolysis box 3 is fixedly connected to a uniform distribution tube 15, the cross-sectional view of the uniform distribution tube 15 is an inverted triangle, a liquid outlet 16 is arranged on the lower surface of the uniform distribution tube 15, a second multi-porous flow equalizing plate 14 is fixedly installed inside the uniform distribution tube 15, the second multi-porous flow equalizing plate 14 enables phosphorus trichloride to flow out evenly from the liquid outlet 16, a circulating water pump 8 is fixedly installed on one side of the lower surface of the hydrolysis box 3 close to the liquid inlet valve 4, and the end of the input pipe of the circulating water pump 8 is fixedly connected to the side of the lower surface of the hydrolysis box 3 close to the circulating water pump 8.

[0025] The end of the output pipe of the circulating water pump 8 is fixedly connected to the water supply pipe 2, and the end of the water supply pipe 2 is fixedly connected to the side of the hydrolysis box 3 near the liquid inlet valve 4. An inclined plate 11 is fixedly installed near the upper surface of the hydrolysis box 3. The length of the uniform distribution pipe 15 is equal to the width of the inclined plate 11, that is, the internal width of the hydrolysis box 3. The inclined plate 11 is located below the end of the water supply pipe 2. A first multi-porous flow equalizing plate 10 is fixedly installed on the side of the upper surface of the inclined plate 11 near the water supply pipe 2. A plurality of raised strips 12 are equidistantly provided on the side of the upper surface of the inclined plate 11 away from the first multi-porous flow equalizing plate 10. The raised strips 12 hinder the water and phosphorus trichloride flowing on the inclined plate 11, which is beneficial to the full mixing and reaction of water and phosphorus trichloride. A drain valve 9 is fixedly connected to one side of the outer surface of the hydrolysis box 3 near the lower surface. Support legs 1 are fixedly installed near the four corners of the lower surface of the hydrolysis box 3.

[0026] When the utility model is in use, the circulating water pump 8 transports the water in the hydrolysis box 3 to the inclined plate 11, and the water flows evenly along the inclined plate 11 after passing through the first porous flow equalizing plate 10. The phosphorus trichloride enters the uniform distribution pipe 15 through the liquid inlet valve 4, and is evenly discharged from the liquid outlet 16 after passing through the second porous flow equalizing plate 14, and falls on the inclined plate 11, contacts, mixes and reacts with the water flowing on the inclined plate 11, thereby avoiding heat accumulation in the hydrolysis reaction and eliminating safety hazards.

[0027] Embodiment 2

[0028] like Figures 1 to 4 As shown, a phosphorus trichloride hydrolysis reaction device proposed by the utility model, compared with the first embodiment, this embodiment also includes a connecting pipe 5 and a purification box 7 fixedly installed on the upper surface of the hydrolysis box 3, and the end of the connecting pipe 5 is located inside the purification box 7, the purification box 7 stores alkaline liquid, the upper surface of the purification box 7 is fixedly connected to an exhaust pipe 6, and the end of the connecting pipe 5 is fixedly connected to an aeration plate 13.

[0029] In this embodiment, harmful hydrochloric acid mist generated during the hydrolysis of phosphorus trichloride is discharged into the purification box 7 through the connecting pipe 5 and the aeration plate 13, contacts with the alkaline liquid in the purification box 7 and is absorbed by the reaction, thereby avoiding environmental pollution.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A phosphorus trichloride hydrolysis reaction device, comprising a hydrolysis tank (3), characterized in that: A liquid inlet valve (4) is fixedly installed on one side of the upper surface of the hydrolysis box (3); one end of the liquid inlet valve (4) located inside the hydrolysis box (3) is fixedly connected to a uniform distribution tube (15); a liquid outlet (16) is provided on the lower surface of the uniform distribution tube (15); a second multi-porous flow equalizing plate (14) is fixedly installed inside the uniform distribution tube (15); a circulating water pump (8) is fixedly installed on one side of the lower surface of the hydrolysis box (3) close to the liquid inlet valve (4); the end of the output pipe of the circulating water pump (8) is fixedly connected to a water supply pipe (2), and the end of the water supply pipe (2) is fixedly connected to one side of the hydrolysis box (3) close to the liquid inlet valve (4); an inclined plate (11) is fixedly installed inside the hydrolysis box (3) close to the upper surface; a first multi-porous flow equalizing plate (10) is fixedly installed on one side of the upper surface of the inclined plate (11) close to the water supply pipe (2).

2. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: A plurality of raised strips (12) are arranged at equal intervals on a side of the upper surface of the inclined plate (11) facing away from the first porous flow equalizing plate (10).

3. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: The end of the input pipe of the circulating water pump (8) is fixedly connected to a side of the lower surface of the hydrolysis box (3) close to the circulating water pump (8).

4. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: A drain valve (9) is fixedly connected to one side of the outer surface of the hydrolysis box (3) at a position close to the lower surface.

5. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: The cross-section of the uniformly distributed tube (15) is in the shape of an inverted triangle.

6. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: Support legs (1) are fixedly mounted on the lower surface of the hydrolysis box (3) near the four corners.

7. A phosphorus trichloride hydrolysis reaction device according to claim 1, characterized in that: A connecting pipe (5) and a purification box (7) are fixedly mounted on the upper surface of the hydrolysis box (3), and the end of the connecting pipe (5) is located inside the purification box (7). An exhaust pipe (6) is fixedly connected to the upper surface of the purification box (7).

8. A phosphorus trichloride hydrolysis reaction device according to claim 7, characterized in that: The end of the connecting pipe (5) is fixedly connected to an aeration plate (13).

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