Device for removing dissolved gas in circulating water

Abstract

The utility model relates to a device for removing dissolved gas in circulating water, and belongs to the technical field of circulating water degassing in the metallurgical industry. According to the technical scheme, the device comprises a water inlet pipe (1), a water outlet pipe (2), an exhaust container (3), an exhaust container inner pipe (4), a normal exhaust pipeline (5), an accident exhaust pipeline (6), a pneumatic pressure regulating valve (7), a manual valve (8), a bypass valve (9) and a blow-down valve (10), the exhaust container (3) is provided with the water inlet pipe (1), the water outlet pipe (2) and the normal exhaust pipeline (5), and the exhaust container inner pipe (4) is vertically arranged in the exhaust container (3); the lower end of the exhaust container inner pipe (4) is located below the water level, the upper end of the exhaust container inner pipe (4) is connected with an accident exhaust pipeline (6), a pneumatic pressure regulating valve (7), a manual valve (8) and a bypass valve (9) are arranged on the water inlet pipe (1), and a blow-down valve (10) is arranged on the water outlet pipe (2). The utility model has the beneficial effect that dissolved gas in water can be quickly separated.

Description

Technical Field

[0001] This utility model relates to a device for removing dissolved gases from circulating water, belonging to the field of circulating water degassing technology in the metallurgical industry. Background Technology

[0002] In the metallurgical industry, some circulating cooling water is used for direct contact cooling of high-temperature gases. The temperature of the circulating water after cooling can reach as high as 80°C. The high-temperature gases contain components such as hydrogen, carbon monoxide, carbon dioxide, methane, and nitrogen, and these gas components will also dissolve in the circulating water.

[0003] Given the properties of the gases and the water temperature, it is necessary to remove the dissolved gases from the circulating water in advance to ensure the requirements of subsequent production processes. According to Henry's Law, the partial pressure of a dissolved gas in a liquid is proportional to the partial pressure in the adjacent gas phase; that is, reducing the partial pressure of the gas phase will reduce the amount of dissolved gas in the liquid. Therefore, we propose an exhaust container. This device uses the hydraulic pressure of the liquid to cause the dissolved gases to precipitate, thus solving the problem mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a device for removing dissolved gases from circulating water, which can quickly separate dissolved gases from water and solve the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] A device for removing dissolved gases from circulating water includes an inlet pipe, an outlet pipe, an exhaust container, an inner tube of the exhaust container, a normal exhaust pipe, an emergency exhaust pipe, a pneumatic pressure regulating valve, a manual valve, a bypass valve, and a drain valve. The exhaust container is equipped with an inlet pipe, an outlet pipe, and a normal exhaust pipe. The inner tube of the exhaust container is vertically installed inside the exhaust container, with its lower end below the water level and its upper end connected to the emergency exhaust pipe. The inlet pipe is equipped with a pneumatic pressure regulating valve, a manual valve, and a bypass valve, and the outlet pipe is equipped with a drain valve.

[0007] The water inlet pipe is connected to the upper part of the exhaust container.

[0008] The water outlet pipe is connected to the bottom of the exhaust container. The water outlet pipe is bent, and the upward bend of the water outlet pipe is below the horizontal height of the water inlet pipe and above the bottom end of the inner pipe of the exhaust container.

[0009] The normal exhaust pipe is connected to the upper part of the exhaust container and is located above the water level.

[0010] The exhaust container is cylindrical or box-shaped, lined with ceramic and covered with thermal insulation material.

[0011] The beneficial effects of this utility model are: the utility model has a simple structure, does not require manual intervention, and automatically controls the opening of the pneumatic pressure regulating valve according to the pressure in the water inlet pipe, preventing cavitation and quickly separating dissolved gases in the water. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model;

[0013] Figure 2 This is a front view structural diagram of the present invention;

[0014] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Exhaust container; 4. Inner pipe of exhaust container; 5. Normal exhaust pipe; 6. Emergency exhaust pipe; 7. Pneumatic pressure regulating valve; 8. Manual valve; 9. Bypass valve; 10. Drain valve. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] See attached document Figure 1-2 A device for removing dissolved gases from circulating water includes an inlet pipe 1, an outlet pipe 2, an exhaust container 3, an inner pipe 4 of the exhaust container, a normal exhaust pipe 5, an emergency exhaust pipe 6, a pneumatic pressure regulating valve 7, a manual valve 8, a bypass valve 9, and a drain valve 10. The exhaust container 3 is equipped with an inlet pipe 1, an outlet pipe 2, and a normal exhaust pipe 5. The inner pipe 4 of the exhaust container is vertically installed inside the exhaust container 3. The lower end of the inner pipe 4 is below the water level, and the upper end is connected to the emergency exhaust pipe 6. The inlet pipe 1 is equipped with a pneumatic pressure regulating valve 7, a manual valve 8, and a bypass valve 9, and the outlet pipe 2 is equipped with a drain valve 10.

[0017] In this embodiment, refer to the appendix Figure 1-2 The device includes an inlet pipe 1, an outlet pipe 2, an exhaust container 3, an inner pipe of the exhaust container 4, a normal exhaust pipe 5, an emergency exhaust pipe 6, a pneumatic pressure regulating valve 7, a manual valve 8, a bypass valve 9, and a drain valve 10, wherein:

[0018] The exhaust container 3 is cylindrical or box-shaped, made of heat-resistant stainless steel, lined with ceramic to reduce the corrosion of the equipment by weakly acidic water, and covered with heat-insulating material to prevent personnel from being burned.

[0019] The water inlet pipe 1 is made of carbon steel lined with aluminum oxide. The water inlet pipe 1 is connected to the upper part of the exhaust container 3 and is equipped with a pneumatic pressure regulating valve 7, a manual valve 8, and a bypass valve 9.

[0020] The water outlet pipe 2 is made of carbon steel lined with aluminum oxide. The water outlet pipe 2 is connected to the bottom of the exhaust container 3 and is bent. The height after bending is below the horizontal height of the water inlet pipe 1 and above the bottom of the inner pipe 4 of the exhaust container. In this way, the dissolved gas in the water will be discharged through the normal exhaust pipe 5 and enter the subsequent gas absorption device.

[0021] The bottom of the inner pipe 4 of the exhaust container is set below the water level, and its top is connected to the emergency exhaust pipe 6. The height of the emergency exhaust pipe 6 meets the safety requirements for the discharge height of dissolved gases.

[0022] Normal exhaust pipe 5 is installed on the upper part of exhaust container 3, above the water level, and the rear end of exhaust pipe 5 is connected to dissolved gas absorption device.

[0023] When the circulating water system malfunctions, the water level in the exhaust container drops, and the released gas is discharged through the emergency exhaust pipe 6. This utility model has a simple structure and requires virtually no manual intervention. It automatically controls the opening of the pneumatic pressure regulating valve 7 based on the pressure in the inlet pipe 1 to prevent cavitation.

Claims

1. A device for removing dissolved gases from circulating water, characterized in that: It includes an inlet pipe (1), an outlet pipe (2), an exhaust container (3), an inner pipe (4) of the exhaust container, a normal exhaust pipe (5), an emergency exhaust pipe (6), a pneumatic pressure regulating valve (7), a manual valve (8), a bypass valve (9), and a drain valve (10). The exhaust container (3) is equipped with an inlet pipe (1), an outlet pipe (2), and a normal exhaust pipe (5). The inner pipe (4) of the exhaust container is vertically installed inside the exhaust container (3). The lower end of the inner pipe (4) of the exhaust container is below the water level, and the upper end is connected to the emergency exhaust pipe (6). The inlet pipe (1) is equipped with a pneumatic pressure regulating valve (7), a manual valve (8), and a bypass valve (9). The outlet pipe (2) is equipped with a drain valve (10).

2. The device for removing dissolved gases from circulating water according to claim 1, characterized in that: The water inlet pipe (1) is connected to the upper part of the exhaust container (3).

3. The device for removing dissolved gases from circulating water according to claim 1, characterized in that: The water outlet pipe (2) is connected to the bottom of the exhaust container (3). The water outlet pipe (2) is bent. The upward bend of the water outlet pipe (2) is below the horizontal height of the water inlet pipe (1) and above the bottom of the inner pipe (4) of the exhaust container.

4. The device for removing dissolved gases from circulating water according to claim 1, characterized in that: The normal exhaust pipe (5) is connected to the upper part of the exhaust container (3) and is located above the water level.

5. The device for removing dissolved gases from circulating water according to claim 1, characterized in that: The exhaust container (3) is cylindrical or box-shaped, lined with ceramic and covered with thermal insulation material.

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