A new type of gas primary cooling tower

Abstract

This utility model provides a novel gas primary cooling tower, relating to the field of chemical equipment technology. It includes a main tower body with cooling inlet and outlet pipes on both sides. A top heat exchange section is located at the top of the main tower body, and an auxiliary feed tank is located in the middle. A connecting pipe connects the auxiliary feed tank, the top heat exchange section, and the main tower body. Through the ingenious design of valves No. 1, No. 2, and No. 3, as well as the auxiliary feed tank and connecting pipe, this solution allows for maintenance or replacement of the top heat exchange section without production stoppage. During normal operation, valve No. 1 is open and valve No. 2 is closed; during maintenance, valves No. 1 and No. 3 are closed, and valve No. 2 is opened, allowing gas to continue flowing through the auxiliary feed tank. This flexible valve control and modular design significantly reduces downtime and improves equipment operating efficiency and production continuity.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a novel gas primary cooling tower. Background Technology

[0002] According to Chinese Patent Publication No. CN215560096U, a packed primary cooling tower for coke oven raw gas is disclosed. The tower includes a main body, a liquid collector fixedly connected to its lower end, a drain pipe and a pretreatment mechanism fixedly connected to the outer surface of the liquid collector, the drain pipe being located to the left of the pretreatment mechanism, a spray section fixedly connected to the upper end of the main body, a tower top section fixedly connected to the upper end of the spray section, an exhaust pipe fixedly connected to the upper end of the tower top section, a spray mechanism fixedly installed inside the spray section, and a packing layer inside the main body.

[0003] When a traditional gas primary cooling tower needs maintenance after operating for a period of time, the entire primary cooling tower needs to be shut down for maintenance, which disrupts the production process and significantly affects the continuity of the entire production process, thus impacting the company's profitability. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel gas primary cooling tower.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel gas primary cooling tower, comprising a main tower body, wherein cooling liquid inlet pipe and cooling liquid outlet pipe are respectively provided on both sides of the main tower body, a top heat exchange section is provided at the top of the main tower body, an auxiliary feed tank is provided in the middle of the main tower body, and a connecting pipe is provided between the auxiliary feed tank and the top heat exchange section, and the connecting pipe connects the auxiliary feed tank, the top heat exchange section and the main tower body.

[0006] Preferably, the connecting pipeline is equipped with valve No. 1, valve No. 2 and valve No. 3.

[0007] Preferably, the No. 1 valve is located between the top heat exchange section and the gas inlet.

[0008] Preferably, the second valve is located between the auxiliary feed tank and the gas inlet.

[0009] Preferably, the third valve is installed in the pipeline between the top heat exchange section and the auxiliary feed tank.

[0010] Preferably, the top of the auxiliary feed tank and the bottom of the top heat exchange section are sealed to each other.

[0011] Preferably, an auxiliary material pipe is provided on one side of the top heat exchange section, and a maintenance manhole is provided on the front of the top heat exchange section.

[0012] Preferably, the main tower body has a drain outlet on one side of the bottom and a steam inlet on the other side. The main tower body has a first liquid level gauge and a second liquid level gauge on the two sides of the central axis near the bottom. The main tower body has a condensate outlet on the front side near the drain outlet and a gas outlet on the longitudinal side of the main tower body near the drain outlet. The top center has a vent. Beneficial effects

[0013] This invention, through the ingenious design of valves No. 1, No. 2, and No. 3, along with an auxiliary feed tank and connecting pipelines, achieves production continuity without interruption during maintenance or replacement of the top heat exchange section. During normal operation, valve No. 1 is open and valve No. 2 is closed; during maintenance, valves No. 1 and No. 3 are closed, and valve No. 2 is opened, allowing gas to continue flowing through the auxiliary feed tank. This flexible valve control and modular design significantly reduces downtime and improves equipment operating efficiency and production continuity. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the main body of this utility model;

[0015] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 This is a diagram of the pipe structure of this utility model.

[0017] Legend:

[0018] 1. Valve No. 1; 2. Valve No. 2; 3. Valve No. 3; 4. Cooling inlet pipe; 5. Cooling outlet pipe; 6. Manhole; 7. Auxiliary material pipe; 8. Auxiliary feed tank; 9. Top heat exchange section; 10. Main tower body; 11. Connecting pipe; 12. Drain outlet; 13. Steam inlet; 14. First level gauge port; 15. Second level gauge port; 16. Condensate outlet; 17. Gas outlet; 18. Vent. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0020] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0022] Reference Figure 1-3 This utility model adopts the following technical solution: A novel gas primary cooling tower includes a main tower body 10, with cooling liquid inlet pipes 4 and cooling liquid outlet pipes 5 respectively on both sides of the main tower body 10. A top heat exchange section 9 is provided at the top of the main tower body 10, and an auxiliary feed tank 8 is provided in the middle of the main tower body 10. A connecting pipe 11 is provided between the auxiliary feed tank 8 and the top heat exchange section 9, and the connecting pipe 11 connects the auxiliary feed tank 8, the top heat exchange section 9, and the main tower body 10. When the gas exits from equipment such as a gasifier or coking furnace, the temperature is usually high, containing a large amount of heat energy and impurities. The primary cooling tower reduces the temperature of the gas by spraying cooling water or other cooling media to exchange heat with the gas. During the cooling process, impurities such as tar, naphthalene, and dust in the gas gradually condense or deposit on the inner wall of the primary cooling tower as the temperature decreases. These impurities are effectively removed in the primary cooling tower, thereby improving the purity of the gas. After being cooled and purified by the primary cooling tower, the temperature, pressure and composition of the gas become more stable and controllable.

[0023] The main tower body 10 has a drain outlet 12 on one side of its bottom and a steam inlet 13 on the other side. The main tower body 10 has a first liquid level gauge 14 and a second liquid level gauge 15 on the two sides of the central axis near the bottom. The main tower body 10 has a condensate outlet 16 on the front side near the drain outlet 12 and a gas outlet 17 on the longitudinal side of the main tower body 10 near the drain outlet 12. The top center of the 9 has a vent 18.

[0024] Valve 1 is located between the top heat exchange section 9 and the gas inlet. Valve 2 is located between the auxiliary feed tank 8 and the gas inlet. Valve 3 is located in the pipeline between the top heat exchange section 9 and the auxiliary feed tank 8. The top of the auxiliary feed tank 8 and the bottom of the top heat exchange section 9 are sealed to each other. The primary cooling tower is usually equipped with a circulating cooling water system to provide a continuous cooling medium. After the cooling water exchanges heat with the gas in the primary cooling tower, its temperature rises. Then, it is cooled by a cooling tower or other cooling equipment and then recycled. Valve 1, valve 2, and valve 3 are installed on the connecting pipeline 11.

[0025] During normal operation, open valve 1 and close valve 2. When maintenance is required, close valve 1 and valve 3, and open valve 2 at the same time. This allows for the disassembly and assembly of the top heat exchange section 9. Maintenance and replacement will not affect operation. An auxiliary material pipe 7 is provided on one side of the top heat exchange section 9, and a maintenance manhole 6 is provided on the front of the top heat exchange section 9. Cleaning can also be performed through the upper maintenance manhole 6.

[0026] In summary:

[0027] 1. Through the ingenious design of valves 1, 2, and 3, along with auxiliary feed tank 8 and connecting pipeline 11, this solution allows for maintenance or replacement of the top heat exchange section 9 without production shutdown. During normal operation, valve 1 is open and valve 2 is closed; during maintenance, valves 1 and 3 are closed, and valve 2 is opened, allowing gas to continue flowing through auxiliary feed tank 8. This flexible valve control and modular design significantly reduces downtime and improves equipment operating efficiency and production continuity.

[0028] 2. The primary cooling tower exchanges heat with the high-temperature coal gas through the top heat exchange section 9 and the cooling water circulation system, effectively reducing the coal gas temperature. During the cooling process, impurities such as tar, naphthalene, and dust condense or deposit on the inner wall of the tower and are removed. This design improves the purity of the coal gas, making the treated coal gas more stable and controllable in terms of temperature, pressure, and composition, providing higher quality feed gas for subsequent processes.

[0029] 3. The top heat exchange section 9 is equipped with a maintenance manhole 6 and an auxiliary material pipe 7, facilitating cleaning or adding auxiliary materials from above by operators. Simultaneously, the sealing design between the auxiliary feed tank 8 and the top heat exchange section 9 reduces the risk of leakage. This user-friendly design not only facilitates daily maintenance and cleaning but also enhances the safety of equipment operation, reducing potential risks caused by impurity accumulation or structural failures.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel coal gas primary cooling tower comprising a main tower body (10), characterized in that: The main tower body (10) is provided with a cooling liquid inlet pipe (4) and a cooling liquid outlet pipe (5) on both sides respectively. The top of the main tower body (10) is provided with a top heat exchange section (9). The middle of the main tower body (10) is provided with an auxiliary feed tank (8). A connecting pipe (11) is provided between the auxiliary feed tank (8) and the top heat exchange section (9). The connecting pipe (11) connects the auxiliary feed tank (8), the top heat exchange section (9) and the main tower body (10). The connecting pipe (11) is provided with a first valve (1), a second valve (2) and a third valve (3). The first valve (1) is located between the top heat exchange section (9) and the gas inlet. The second valve is located between the auxiliary feed tank (8) and the gas inlet. The third valve (3) is located in the pipe between the top heat exchange section (9) and the auxiliary feed tank (8).

2. A novel coal gas primary cooling tower according to claim 1, characterized in that: The top of the auxiliary feed tank (8) and the bottom of the top heat exchange section (9) are sealed to each other.

3. A novel coal gas primary cooling tower according to claim 1, characterized in that: The top heat exchange section (9) is provided with an auxiliary material pipe (7) on one side, and a maintenance manhole (6) is provided on the front side of the top heat exchange section (9).

4. A novel gas primary cooling tower according to claim 1, characterized in that: The bottom of the main tower body (10) is provided with a drain outlet (12) on one side and a steam inlet (13) on the other side.

5. A novel gas primary cooling tower according to claim 1, characterized in that: The main tower body (10) has a first liquid level gauge port (14) and a second liquid level gauge port (15) on the sides of the central axis near the bottom. The main tower body (10) has a condensate outlet (16) on the front side near the drain outlet (12).

6. A novel gas primary cooling tower according to claim 5, characterized in that: The main tower body (10) has a gas outlet (17) on the longitudinally extended side near the sewage outlet (12), and the top center of the (9) has a vent (18).

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