Spraying water collecting device for steam exhaust spraying water system of polymerization kettle

Abstract

The utility model relates to a spray water collecting device used in a steam exhaust spray water system of a polymerization kettle. Comprising a third polymerizer spray water inlet pipeline, a second polymerizer spray water inlet pipeline, a first polymerizer spray water inlet pipeline, a gas outlet pipeline, a spray water pipeline, a spray water collecting tank, a stainless steel partition plate, a spray water outlet, a first polymerizer, a second polymerizer, a third polymerizer, a first spray tank, a second spray tank and a third spray tank, the device comprises a first polymeric kettle exhaust pipeline, a second polymeric kettle exhaust pipeline, a third polymeric kettle exhaust pipeline, a filter, a spraying water pump, a heat exchanger and a buffer water tank. The spraying device is reasonable in structure and ingenious in design, water containing gas is effectively prevented from entering the spraying water outlet pipeline, the cavitation phenomenon of the spraying water pump is avoided, the pressure of spraying water is stabilized, water can be continuously supplied into the spraying tank, and it is guaranteed that the pressure of the polymerization kettle can reach the required value. Good market prospects and development space are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical production polymerizer exhaust system equipment technical field, concretely relates to a kind of spray water collecting device in polymerizer exhaust spray water system. BACKGROUND

[0002] Polymerizer is often used in chemical production, and the exhaust system of polymerizer discharges high-temperature and high-pressure gas. After the gas is cooled by spraying and becomes a gas-liquid mixture, it enters the spray water collecting tank. After the gas-liquid mixture enters the spray water collecting tank, the water in the spray water collecting tank contains a large amount of gas. The water containing a large amount of gas enters the spray water pipeline, and there is a spray water pump on the spray water pipeline. The water containing gas enters the spray water pump, which can easily cause cavitation, unstable spray water pressure, and no continuous water supply in the spray tank, resulting in the pressure of the polymerizer not reaching the set value.

[0003] How to design a spray water collecting device for polymerizer exhaust spray water system that is reasonable in structure, ingenious in design, effectively avoids the water containing gas from entering the spray water pipeline, avoids cavitation of the spray water pump, stabilizes the pressure of the spray water, enables continuous water supply in the spray tank, stabilizes the negative pressure state in the spray tank, helps the polymerizer to exhaust and release pressure, ensures that the pressure of the polymerizer reaches the required value, and better stabilizes the product quality is a problem to be solved at present. SUMMARY

[0004] To solve the technical problems of existing spray water collecting tank containing high-temperature and high-pressure gas water entering the spray water pump, causing cavitation, leading to unstable spray water pressure, no continuous water supply in the spray tank, and the pressure of the polymerizer not reaching the set value, the utility model provides a spray water collecting device for polymerizer exhaust spray water system, which is reasonable in structure, ingenious in design, effectively avoids the water containing gas from entering the spray water pipeline, avoids cavitation of the spray water pump, stabilizes the pressure of the spray water, enables continuous water supply in the spray tank, stabilizes the negative pressure state in the spray tank, helps the polymerizer to exhaust and release pressure, ensures that the pressure of the polymerizer reaches the required value, and better stabilizes the product quality.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a spray water collection device for a spray water system in a polymerization reactor exhaust system, comprising a third polymerization reactor spray water inlet pipeline, a second polymerization reactor spray water inlet pipeline, a first polymerization reactor spray water inlet pipeline, a gas outlet pipeline, a spray water pipeline, a spray water collection tank, a stainless steel partition, a spray water outlet, a first polymerization reactor, a second polymerization reactor, a third polymerization reactor, a first spray tank, a second spray tank, a third spray tank, a first polymerization reactor exhaust pipeline, a second polymerization reactor exhaust pipeline, a third polymerization reactor exhaust pipeline, a filter, a spray water pump, a heat exchanger, and a buffer water tank, wherein the first spray tank... The second and third spray tanks are connected in parallel and connected to the inside of the spray water collection tank through the spray water inlet pipelines at the lower ends of the first, second, and third polymerization reactors, respectively. The stainless steel baffle is vertically installed at the bottom of the spray water collection tank. The gas outlet pipeline is installed at the top of the spray water collection tank, and the gas in the upper part of the spray water collection tank enters the buffer water tank through the gas outlet pipeline. A filter and a spray water pump are connected in series between the spray water pipeline and the heat exchanger. The spray water cooled by the heat exchanger enters the first, second, and third spray tanks through the pipelines, respectively.

[0006] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: for example, the high temperature and high pressure gas in the first polymerization reactor, the second polymerization reactor and the third polymerization reactor enters the first spray tank, the second spray tank and the third spray tank respectively through the exhaust pipe of the first polymerization reactor, the exhaust pipe of the second polymerization reactor and the exhaust pipe of the third polymerization reactor.

[0007] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: For example, the top of the spray water collection tank is also provided with an overflow water pipeline, which is connected to the buffer water tank.

[0008] The above is the basic embodiment of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: such as the stainless steel partition being an arc-shaped stainless steel plate, the height of the stainless steel partition being half the internal height of the spray water collection tank, the lower edge of the stainless steel partition being welded and fixed to the bottom surface of the spray water collection tank, and the two side edges of the stainless steel partition being welded and fixed to the side surface of the spray water collection tank, forming a barrier groove for preventing gas from entering the spray water pipeline.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model includes a third polymerization reactor spray water inlet pipeline, a second polymerization reactor spray water inlet pipeline, a first polymerization reactor spray water inlet pipeline, a gas outlet pipeline, a spray water pipeline, a spray water collection tank, a stainless steel partition, a spray water outlet, a first polymerization reactor, a second polymerization reactor, a third polymerization reactor, a first spray tank, a second spray tank, a third spray tank, a first polymerization reactor exhaust pipeline, a second polymerization reactor exhaust pipeline, a third polymerization reactor exhaust pipeline, a filter, a spray water pump, a heat exchanger, and a buffer water tank.

[0011] This invention effectively prevents water containing gas from entering the spray water pipeline by setting up a stainless steel partition, a gas outlet pipeline, and an overflow water pipeline. This prevents cavitation in the spray water pump, stabilizes the pressure of the spray water, ensures a continuous water supply to the spray tank, stabilizes the negative pressure state inside the spray tank, and thus helps the polymerization reactor to release steam and pressure, ensuring that the pressure of the polymerization reactor can reach the required value. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the workflow of this utility model;

[0013] Figure 2 This is a cross-sectional view of the spray water collection tank;

[0014] Figure 3 This is a top view of the spray water collection tank.

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the spray water collection tank;

[0016] The diagram shows the following markings: 1. Spray water inlet pipeline for the third polymerization reactor; 2. Spray water inlet pipeline for the second polymerization reactor; 3. Spray water inlet pipeline for the first polymerization reactor; 4. Gas outlet pipeline; 5. Overflow water pipeline; 6. Spray water pipeline; 7. Spray water collection tank; 8. Stainless steel partition; 9. Spray water outlet; 10. First polymerization reactor; 11. Second polymerization reactor; 12. Third polymerization reactor; 13. First spray tank; 14. Second spray tank; 15. Third spray tank; 16. Exhaust pipeline for the first polymerization reactor; 17. Exhaust pipeline for the second polymerization reactor; 18. Exhaust pipeline for the third polymerization reactor; 19. Filter; 20. Spray water pump; 21. Heat exchanger; 22. Buffer water tank. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] As shown in the figure, a spray water collection device for a polymerization reactor exhaust spray water system includes a third polymerization reactor spray water inlet pipeline 1, a second polymerization reactor spray water inlet pipeline 2, a first polymerization reactor spray water inlet pipeline 3, a gas outlet pipeline 4, a spray water pipeline 6, a spray water collection tank 7, a stainless steel partition 8, a spray water outlet 9, a first polymerization reactor 10, a second polymerization reactor 11, a third polymerization reactor 12, a first spray tank 13, a second spray tank 14, a third spray tank 15, a first polymerization reactor exhaust pipeline 16, a second polymerization reactor exhaust pipeline 17, a third polymerization reactor exhaust pipeline 18, a filter 19, a spray water pump 20, a heat exchanger 21, and a buffer water tank 22. The first spray tank 13 and the second spray tank 14... The third spray tank 15 is arranged in parallel and connected to the inside of the spray water collection tank 7 through the spray water outlet 9 at the lower end of the first polymerization reactor spray water inlet pipeline 3, the second polymerization reactor spray water inlet pipeline 2, and the third polymerization reactor spray water inlet pipeline 1, respectively; the stainless steel partition 8 is vertically arranged at the bottom of the spray water collection tank 7; the gas outlet pipeline 4 is arranged at the top of the spray water collection tank 7, and the gas in the upper part of the spray water collection tank 7 enters the buffer water tank 22 through the gas outlet pipeline 4; a filter 19 and a spray water pump 20 are connected in series between the spray water pipeline 6 and the heat exchanger 21, and the spray water after being cooled by the heat exchanger 21 enters the first spray tank 13, the second spray tank 14, and the third spray tank 15 through the pipeline, respectively.

[0019] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: for example, the high temperature and high pressure gas in the first polymerization reactor 10, the second polymerization reactor 11 and the third polymerization reactor 12 enter the first spray tank 13, the second spray tank 14 and the third spray tank 15 respectively through the exhaust pipe 16 of the first polymerization reactor, the exhaust pipe 17 of the second polymerization reactor and the exhaust pipe 18 of the third polymerization reactor.

[0020] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: For example, the side of the spray water collection tank 7 is also provided with an overflow water pipeline 5, which is connected to the buffer water tank 22.

[0021] The above is the basic embodiment of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: For example, the stainless steel partition 8 is an arc-shaped stainless steel plate, the height of the stainless steel partition 8 is half the internal height of the spray water collection tank 7, the lower edge of the stainless steel partition 8 is welded and fixed to the bottom surface of the spray water collection tank 7, and the two side edges of the stainless steel partition 8 are welded and fixed to the side of the spray water collection tank 7, forming a barrier groove for preventing gas from entering the spray water pipeline 6.

[0022] like Figure 4As shown, the height of the stainless steel baffle 8 is approximately half the internal height of the spray water collection tank 7. The lower edge of the stainless steel baffle 8 is welded to the bottom surface of the spray water collection tank 7, and the two side edges of the stainless steel baffle 8 are welded to the sides of the spray water collection tank 7. The stainless steel baffle 8 is shaped like an arc-shaped stainless steel plate (which can be understood as an arc-shaped steel plate bent from a rectangular steel plate). Due to the obstruction of the stainless steel baffle 8, a large amount of gas rises to the top of the spray water collection tank 7 and flows through the gas outlet pipeline 4 to the buffer water tank 22. The gas cannot enter the spray water pipeline 6 due to the obstruction of the stainless steel baffle 8. The spray water in the spray water pipeline 6, after being filtered by the filter 19 to remove impurities, enters the spray water pump 20, preventing cavitation in the spray water pump.

[0023] The inlet of the spray water pipeline 6 inside the spray water collection tank 7 faces the bottom surface of the spray water collection tank 7. Inside the spray water collection tank 7, a stainless steel partition 8 separates the inlet of the spray water pipeline 6 from the outlets of the third polymerization reactor spray water inlet pipeline 1, the second polymerization reactor spray water inlet pipeline 2, and the first polymerization reactor spray water inlet pipeline 3.

[0024] The working process of this utility model is as follows: The spray water collection tank 7 needs to collect spray water from the first spray tank 13, the second spray tank 14, and the third spray tank 15. Taking the first polymerization system as an example, the high-temperature and high-pressure gas discharged from the first polymerization reactor 10 enters the first spray tank 13 through the first polymerization reactor exhaust pipe 16. In the first spray tank 13, the high-temperature and high-pressure gas is cooled by the spray of low-temperature spray water and becomes a gas-liquid mixture spray water containing gas. The gas-liquid mixture spray water enters the spray water collection tank 7 from the first polymerization reactor spray water inlet pipe 3 on the top cover of the spray water collection tank 7. The gas-liquid mixture of spray water enters the spray water collection tank 7 from the spray water outlet 9. Within the collection tank 7, the gas is blocked by the stainless steel baffle 8, causing a large amount of gas to rise to the top of the collection tank 7 and flow through the gas outlet pipeline 4 to the buffer tank 22. The gas is prevented from entering the spray water pipeline 6 by the stainless steel baffle 8. The spray water in the spray water pipeline 6, after being filtered by the filter 19 to remove impurities, enters the spray water pump 20. After being pressurized by the spray water pump 20, the water is cooled by the heat exchanger 21 and then delivered to the first spray tank 13, the second spray tank 14, and the third spray tank 15, respectively.

[0025] Gas cannot enter the spray water pipeline 6 due to the obstruction of the stainless steel partition 8. In this way, the spray water entering the spray water pipeline 6 does not contain gas, which avoids cavitation of the spray water pump 20, stabilizes the pressure of the spray water entering the first spray tank 13, and ensures that the first spray tank 13 can receive a continuous water supply, thus ensuring that the pressure of the first polymerization reactor 10 can be reduced to the required value.

[0026] The operating principles of the second polymerization reactor 11, the second polymerization reactor exhaust line 17, and the second spray tank 14 in the second polymerization system, and the third polymerization reactor 12, the third polymerization reactor exhaust line 18, and the third spray tank 15 in the third polymerization system are the same as those of the first polymerization reactor 10, the first polymerization reactor exhaust line 16, and the first spray tank 13 in the first polymerization system. These can be seen from the drawings and will not be elaborated further.

[0027] This utility model has a reasonable structure and ingenious design, effectively preventing water containing gas from entering the spray water outlet pipeline, avoiding cavitation in the spray water pump, stabilizing the spray water pressure, ensuring a continuous water supply to the spray tank, stabilizing the negative pressure state inside the spray tank, thereby helping the polymerization reactor to release steam and pressure, ensuring that the pressure in the polymerization reactor can reach the required value, and better stabilizing product quality. It solves the technical problems of existing spray water collection tanks containing high-temperature and high-pressure gas entering the spray water pump, causing cavitation, resulting in unstable spray water pressure, inability to obtain a continuous water supply to the spray tank, and failure of the polymerization reactor pressure to reach the set value. Compared with existing technologies, it has a very good market prospect and development space.

[0028] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.

Claims

1. A spray water collection device for a polymerization reactor exhaust spray water system, characterized in that: The system includes the third polymerization reactor spray water inlet pipeline (1), the second polymerization reactor spray water inlet pipeline (2), the first polymerization reactor spray water inlet pipeline (3), the gas outlet pipeline (4), the spray water pipeline (6), the spray water collection tank (7), the stainless steel partition (8), the spray water outlet (9), the first polymerization reactor (10), the second polymerization reactor (11), the third polymerization reactor (12), the first spray tank (13), the second spray tank (14), the third spray tank (15), the first polymerization reactor exhaust pipeline (16), the second polymerization reactor exhaust pipeline (17), the third polymerization reactor exhaust pipeline (18), the filter (19), the spray water pump (20), the heat exchanger (21), and the buffer water tank (22). The first spray tank (13), the second spray tank (14), and the third spray tank (15) are connected in parallel. The spray water is connected to the spray water collection tank (7) through the spray water outlet (9) at the lower end of the first polymerization reactor spray water inlet pipeline (3), the second polymerization reactor spray water inlet pipeline (2), and the third polymerization reactor spray water inlet pipeline (1), respectively; the stainless steel partition (8) is vertically set at the bottom of the spray water collection tank (7); the gas outlet pipeline (4) is set at the top of the spray water collection tank (7), and the gas in the upper part of the spray water collection tank (7) enters the buffer water tank (22) through the gas outlet pipeline (4); a filter (19) and a spray water pump (20) are connected in series between the spray water pipeline (6) and the heat exchanger (21), and the spray water after being cooled by the heat exchanger (21) enters the first spray tank (13), the second spray tank (14), and the third spray tank (15) through the pipeline, respectively.

2. The spray water collection device for a polymerization reactor exhaust spray water system as described in claim 1, characterized in that: The high-temperature and high-pressure gases in the first polymerization reactor (10), the second polymerization reactor (11), and the third polymerization reactor (12) enter the first spray tank (13), the second spray tank (14), and the third spray tank (15) respectively through the exhaust pipe (16) of the first polymerization reactor, the exhaust pipe (17) of the second polymerization reactor, and the exhaust pipe (18) of the third polymerization reactor.

3. The spray water collection device for a polymerization reactor exhaust spray water system as described in claim 1, characterized in that: The side of the spray water collection tank (7) is also provided with an overflow water pipeline (5), which is connected to the buffer water tank (22).

4. The spray water collection device for a polymerization reactor exhaust spray water system as described in claim 1, characterized in that: The stainless steel partition (8) is an arc-shaped stainless steel plate. The height of the stainless steel partition (8) is half the internal height of the spray water collection tank (7). The lower edge of the stainless steel partition (8) is welded and fixed to the bottom surface of the spray water collection tank (7). The two sides of the stainless steel partition (8) are welded and fixed to the sides of the spray water collection tank (7) to form a barrier groove for preventing gas from entering the spray water pipeline (6).

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