Coke oven pressurization protection device
By designing a coke oven pressurization protection device and utilizing a combination of a protection box, a temporary storage box, and an overpressure box, the leakage problem caused by overpressure during the coke oven gas pressurization process was solved, and automatic adjustment of gas pressure and efficient utilization of resources were achieved.
Patent Information
- Application Number
- CN202422493579.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In the prior art, during the coke oven gas pressurization process, overpressure easily leads to leakage, and the gas pressure cannot be effectively controlled, resulting in a waste of resources.
A coke oven pressurization protection device was designed, which included a protection box, a temporary storage box and an overpressure box. Through the cooperation of an air pressure sensor and an electromagnetic valve, the air pressure in the coke oven gas pipe was automatically adjusted and diverted to prevent overpressure and reduce waste.
It effectively prevents overpressure leakage in the coke oven gas pipe, reduces resource waste, and improves production stability and efficiency.
Smart Images
Figure CN223357592U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of overvoltage protection equipment, in particular to a coke oven pressure protection device. Background Art
[0002] Coke ovens are industrial kilns used to produce coke. The development of coke oven structure has generally progressed through four stages: pile dry distillation (traditional coking), downdraft coke ovens, waste heat coke ovens, and modern regenerative coke ovens. Coke oven gas, also known as coke oven gas, is a byproduct of the coking industry. It is a combustible gas produced during the coking process by dry distilling coking coal, a blend of several bituminous coals, at high temperatures. Coke oven gas pressurization is a crucial step in coke oven gas processing. During coke oven gas production, pressurization is typically required to meet the gas pressure and temperature requirements of subsequent processes, ensuring stable and efficient production. To prevent over-pressurization and leaks, a pressurization protection device is installed on the coke oven gas pipe. Utility Model Content
[0003] In view of the above technical problems, the utility model provides a coke oven pressurization protection device.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a coke oven pressurization protection device, including a protection box, which is connected to the coke oven gas pipe, and the interior of the protection box is divided into a temporary storage box and an overpressure box. A pressure relief valve is provided on the pipe connecting the protection box and the coke oven gas pipe, and the temporary storage box and the overpressure box are connected through an overpressure solenoid valve. The temporary storage box is connected to a return air pipe, and a first solenoid valve and a one-way valve are provided on the return air pipe. The overpressure box is connected to an air supply pipe, and a second solenoid valve is provided on the air supply pipe. A first air pressure sensor is provided on the temporary storage box, and a second air pressure sensor is provided on the coke oven gas pipe. A controller is provided on the protection box, and the first air pressure sensor and the second air pressure sensor are communicated with the controller. The overpressure solenoid valve, the first solenoid valve, and the second solenoid valve are controlled by the controller.
[0005] Furthermore, a first air pump is provided on the air return pipe, and a second air pump is provided on the air supply pipe.
[0006] Furthermore, the first air pump and the second air pump are both controlled by the controller.
[0007] Furthermore, a reinforcing rib is fixedly connected between the protection box and the coke oven gas pipe.
[0008] Compared with the prior art, the utility model has the following advantages:
[0009] The utility model is provided with a protection box. When the air pressure in the coke oven gas pipe is higher than a critical value, the pressure relief valve is started to transport the coke oven gas in the coke oven gas pipe to the temporary storage box, which plays a protective role. A return air pipe is provided. When the air pressure in the coke oven gas pipe drops, the return air pipe is used to transport the coke oven gas in the temporary storage box to the coke oven gas pipe, which reduces waste. An overpressure box is provided. When the air pressure in the temporary storage box is too high and the coke oven gas cannot be re-transmitted to the coke oven gas pipe, the overpressure solenoid valve is used to transport the coke oven gas to the overpressure box, and then transport it to the combustion chamber of the coke oven through the air supply pipe, which avoids waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure of the utility model.
[0011] Figure 2 This is a schematic diagram of the structure of the protective box of the utility model.
[0012] Among them: 1. Protection box, 1a. Temporary storage box, 1b. Overpressure box, 2. Overpressure solenoid valve, 3. Controller, 4. First air pressure sensor, 5. First air pump, 6. Return air pipe, 7. One-way valve, 8. Second air pressure sensor, 9. First solenoid valve, 10. Pressure relief valve, 11. Air supply pipe, 12. Second air pump, 13. Second solenoid valve, A. Coke oven gas pipe. DETAILED DESCRIPTION
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] like Figure 1 、 Figure 2 A coke oven pressurization protection device shown includes a protection box 1, which is connected to the coke oven gas pipe A. The interior of the protection box 1 is divided into a temporary storage box 1a and an overpressure box 1b. A pressure relief valve 10 is provided on the pipe connecting the protection box 1 and the coke oven gas pipe A. The temporary storage box 1a and the overpressure box 1b are connected through an overpressure solenoid valve 2. The temporary storage box 1a is connected to a return air pipe 6, and a first solenoid valve 9 and a one-way valve 7 are provided on the return air pipe 6. The overpressure box 1b is connected to an air supply pipe 11, and a second solenoid valve 13 is provided on the air supply pipe 11. A first air pressure sensor 4 is provided on the temporary storage box 1a, and a second air pressure sensor 8 is provided on the coke oven gas pipe A. A controller 3 is provided on the protection box 1, and the first air pressure sensor 4 and the second air pressure sensor 8 are communicated with the controller 3. The overpressure solenoid valve 2, the first solenoid valve 9, and the second solenoid valve 13 are controlled by the controller 3.
[0015] It should be noted that the air supply pipe 11 is connected to the combustion chamber of the coke oven; the pressure relief pressure of the pressure relief valve 10 is consistent with the critical pressure of the coke oven gas pipe A.
[0016] In order to facilitate gas transportation, a first air pump 5 is provided on the return air pipe 6 and a second air pump 12 is provided on the air supply pipe 11 .
[0017] For ease of control, the first air pump 5 and the second air pump 12 are both controlled by the controller 3 .
[0018] In order to increase the connection strength of the equipment, reinforcing ribs are fixedly connected between the protection box 1 and the coke oven gas pipe A.
[0019] The specific working process of this utility model is as follows:
[0020] When the air pressure in the coke oven gas pipe A reaches a critical value, the coke oven gas rushes through the pressure relief valve 10 and enters the temporary storage box 1a side in the protective box 1, reducing the pressure in the coke oven gas pipe A. When the second air pressure sensor 8 detects that the pressure in the coke oven gas pipe A has decreased, the controller 3 controls the first solenoid valve 9 to open and controls the first air pump 5 to work, so that the coke oven gas in the temporary storage box 1a returns to the coke oven gas pipe A. During this process, the one-way valve 7 prevents the coke oven gas from flowing back.
[0021] When the first air pressure sensor 4 detects that the pressure in the temporary storage box 1a is too high and the air pressure in the coke oven gas pipe A has not decreased, the overpressure solenoid valve 2 is opened to discharge the coke oven gas into the overpressure box, and the second solenoid valve 13 is opened to transport the coke oven gas to the combustion chamber of the coke oven through the air supply pipe 11 and the second air pump 12 to reduce waste.
Claims
1. A coke oven pressurization protection device, comprising a protection box (1), wherein the protection box (1) is connected to a coke oven gas pipe (A), and is characterized in that: The protection box (1) is internally divided into a temporary storage box (1a) and an overpressure box (1b). A pressure relief valve (10) is provided on the pipe connecting the protection box (1) and the coke oven gas pipe (A). The temporary storage box (1a) and the overpressure box (1b) are connected via an overpressure electromagnetic valve (2). The temporary storage box (1a) is connected to a return air pipe (6). The return air pipe (6) is provided with a first electromagnetic valve (9) and a one-way valve (7). The overpressure box (1b) is connected to an air supply pipe (11). A second solenoid valve (13) is provided on the air supply pipe (11), a first air pressure sensor (4) is provided on the temporary storage box (1a), a second air pressure sensor (8) is provided on the coke oven gas pipe (A), a controller (3) is provided on the protection box (1), the first air pressure sensor (4) and the second air pressure sensor (8) are communicatively connected with the controller (3), and the overpressure solenoid valve (2), the first solenoid valve (9), and the second solenoid valve (13) are controlled by the controller (3).
2. The coke oven pressurization protection device according to claim 1, characterized in that: The air return pipe (6) is provided with a first air pump (5), and the air supply pipe (11) is provided with a second air pump (12).
3. The coke oven pressurization protection device according to claim 2, characterized in that: The first air pump (5) and the second air pump (12) are both controlled by the controller (3).
4. The coke oven pressurization protection device according to claim 1, characterized in that: Reinforcing ribs are fixedly connected between the protection box (1) and the coke oven gas pipe (A).