Gas equipment pipeline drainage system
The gas equipment pipeline drainage system addresses freezing and blockage issues through steam purging and insulation, ensuring stable gas flow and safety by detecting leaks.
Patent Information
- Application Number
- CN202420941731.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Existing gas equipment pipelines are prone to freezing and blockage, leading to gas system pressure fluctuations, leakage, and safety hazards due to condensate discharge issues, particularly in winter conditions.
A gas equipment pipeline drainage system with steam purging and insulation, featuring electromagnetic valves, electric heating tapes, and a gas alarm to maintain pipeline integrity and detect leaks.
Prevents pipeline blockage and freezing, ensures consistent gas flow, and alerts for potential gas leaks, enhancing safety by automating response to hazards.
Smart Images
Figure CN222278276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke oven gas drainage, in particular to a gas equipment pipeline drainage system. Background Art
[0002] The gas inlet and outlet pipelines of the de-oiling and de-naphthalene device are drained regularly (once per hour) through the pipeline below the ground into the underground tank using the drain valve at the bottom of the pipeline.
[0003] In the prior art, there is a system for recovering and utilizing wash oil entrained in coal gas with the publication number CN213803665U, which includes an underground tank for collecting residual wash oil entrained in the coal gas from the debenzene tower; a regenerator residue tank connected to the outlet of the underground tank for heating the residual wash oil from the underground tank; and a wash oil regenerator connected to the outlet of the regenerator residue tank for regenerating the residual wash oil after heating. However, it is very easy to freeze and block in winter, which makes it impossible to discharge the condensate in the pipeline normally, resulting in gas blocking, causing the gas system of the previous process to be pressurized, and the subsequent process does not have enough gas to use and faces the problem of system shutdown; and the gas in the pipeline will have an external cross-talk phenomenon, which poses a great safety hazard. At present, there is a lack of a gas equipment pipeline drainage system that can avoid pipeline blockage. Summary of the invention
[0004] The purpose of the utility model is to provide a gas equipment pipeline drainage system to solve the gas system flow and pressure fluctuation problems and gas leakage caused by freezing and blockage of the drainage pipeline, thereby eliminating safety hazards.
[0005] The utility model is realized through the following technical solutions:
[0006] A gas equipment pipeline drainage system comprises a de-oiling and de-naphthalene removing device and an underground tank, wherein the de-oiling and de-naphthalene removing device is connected with an air inlet line and an air outlet line, the air inlet line is provided with an air inlet valve, the air inlet line is connected with a drainage pipeline I, and the air outlet line is provided with an air outlet valve; the air outlet line is connected with a drainage pipeline II; the drainage pipeline I and the drainage pipeline II are both connected with a gas drainer, the gas drainer is arranged in a closed tank, a gas alarm is arranged in the closed tank, the drainage pipeline I and the drainage pipeline II are respectively connected with a steam main pipe; the gas drainer is connected to the underground tank.
[0007] Furthermore, the steam main pipe is divided into a steam pipe I and a steam pipe II. The steam pipe I is connected to the drain pipe I through a valve I; the steam pipe II is connected to the drain pipe II through a valve II.
[0008] Furthermore, the steam pipeline I is provided with a shut-off valve I and a shut-off valve II, and the steam pipeline I is connected between the shut-off valve I and the shut-off valve; the steam pipeline II is provided with a shut-off valve III and a shut-off valve IV, and the steam pipeline II is connected between the shut-off valve III and the shut-off valve IV.
[0009] Furthermore, the valve I and valve II are both electromagnetic valves; valve I and valve II are electrically connected to a controller.
[0010] Furthermore, the drainage pipe I and the drainage pipe II are provided with an insulation layer, and an electric heating tape is provided inside the insulation layer. The electric heating tape is electrically connected to a controller, and the controller controls the output power of the electric heating tape to maintain a constant temperature state of the drainage pipe I and the drainage pipe II.
[0011] Furthermore, the thermal insulation layer is made of glass wool or polyurethane.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model adds steam to purge the pipeline, which can prevent blockage or freezing caused by viscosity of the liquid inside the pipeline or low temperature, and achieves purge through valve control.
[0014] 2. The utility model lays an electric heating tape on the drainage pipe, and cooperates with the insulation layer to insulate the pipe, so as to avoid the problem that the condensate in the pipe cannot be discharged normally due to freezing and blockage.
[0015] 3. The utility model is provided with a gas alarm in the closed tank to detect the leakage of toxic gas. The alarm sends out an alarm signal and can start external equipment to automatically eliminate hidden dangers. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] In the figure: 1. De-oiling and de-naphthalene removing device; 2. Inlet valve; 3. Exit valve; 4. Controller; 5. Shut-off valve I; 6. Valve I; 7. Shut-off valve II; 8. Shut-off valve III; 9. Valve II; 10. Shut-off valve IV; 11. Gas drainer; 12. Gas alarm; 13. Steam main inlet; 14. Gas outlet; 15. Gas inlet. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.
[0019] The utility model is further described below in conjunction with the accompanying drawings.
[0020] Embodiment 1: A gas equipment pipeline drainage system, such as Figure 1 As shown, it includes a de-oiling and de-naphthalene device 1 and an underground tank, the de-oiling and de-naphthalene device 1 is connected with an air inlet line and an air outlet line, the air inlet line is provided with a gas inlet 15, the air outlet line is provided with a gas outlet 14, the gas outlet 14 is connected to the next process, the air inlet line is provided with an air inlet valve 2, the air inlet line is connected with a drainage pipe I, the air outlet line is provided with an air outlet valve 3; the air outlet line is connected with a drainage pipe II; the drainage pipe I and the drainage pipe II are both connected with a gas drainer 11, the gas drainer 11 is arranged in a closed tank, the closed tank is provided with a gas alarm 12, the drainage pipe I and the drainage pipe II are respectively connected to the steam main pipe, and the outer end of the steam main pipe is provided with a steam main pipe inlet 13; the gas drainer 11 is connected to the underground tank, the gas drainer 11 is arranged below the horizontal plane, and the liquid full of the gas drainer 11 flows to the underground tank through the pipe. The utility model adds a steam purge pipeline, which can prevent the blockage or freezing caused by the viscosity of the liquid inside the pipeline or the low temperature, and the purge is achieved through valve control.
[0021] Embodiment 2: A gas equipment pipeline drainage system, wherein the steam main pipe is divided into steam pipe I and steam pipe II, wherein the steam pipe I is connected to the drainage pipe I through valve I6; the steam pipe II is connected to the drainage pipe II through valve II9. The steam pipe I is provided with cut-off valve I5 and cut-off valve II7, and the steam pipe I is connected between the cut-off valve I5 and the cut-off valve; the steam pipe II is provided with cut-off valve III8 and cut-off valve IV10, and the steam pipe II is connected between the cut-off valve III8 and the cut-off valve IV10. The valves Ⅰ6 and Ⅱ9 are electromagnetic valves; the cut-off valves Ⅰ5, Ⅱ7, Ⅲ8 and Ⅳ10 are electromagnetic valves; the valves Ⅰ6, Ⅱ9, Ⅰ5, Ⅱ7, Ⅲ8 and Ⅳ10 are electrically connected to the controller 4, which controls the switches of each valve. The controller 4 is provided with a timer to perform switch purging at regular intervals. The controller 4 controls the automatic start and stop of the valves Ⅰ6 and Ⅱ9 without manual opening. The drainage pipes Ⅰ and Ⅱ are provided with an insulation layer, and an electric heating belt is provided in the insulation layer. The electric heating belt is electrically connected to the controller 4, and the controller 4 controls the output power of the electric heating belt to maintain the constant temperature of the drainage pipes Ⅰ and Ⅱ. The insulation layer is made of glass wool or polyurethane, which has a better insulation effect. The rest is the same as Example 1.
[0022] The original gas pipeline drainage pipeline of the de-oiling and naphthalene removal device 1 opens the valve regularly (once per hour) to discharge the liquid into the underground tank for recycling and treatment. The two drainage pipelines buried underground are prone to freezing and blockage in winter, and the discharge of gas is easy to cause poisoning and fire accidents.
[0023] When the utility model is in use, valves I6 and II9 are opened regularly to purge the drainage pipes I and II at high temperature. The drainage pipes I and II are wrapped with heating belts, and the constant temperature is controlled by the controller 4.
[0024] Shut-off valves Ⅰ5, Ⅱ7, Ⅲ8 and Ⅳ10 are usually in the open state. When purging is required, shut-off valves Ⅰ5 and Ⅲ8 are closed, valves Ⅰ6 and Ⅱ9 are opened, and then the drain pipes Ⅰ and Ⅱ are purged through the steam main. When the separate steam pipe Ⅰ needs to be purged, valve Ⅱ9 can be closed. Otherwise, to purge the steam pipe Ⅱ, valve Ⅰ6 should be closed. Shut-off valves Ⅰ5, Ⅱ7, Ⅲ8 and Ⅳ10 are used to control the purging direction.
[0025] When the waste liquid is discharged, the waste liquid flows directly into the gas drainer 11 in the closed tank, and the gas is sealed by the liquid in the drainer and will not escape. A gas alarm 12 is installed in the closed tank to alarm when the gas escapes, thereby avoiding accidents.
[0026] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.
Claims
1. A gas equipment pipeline drainage system, comprising a de-oiling and de-naphthalene removing device (1) and an underground tank, characterized in that: The de-oiling and de-naphthalene removing device (1) is connected to an air inlet line and an air outlet line, the air inlet line is provided with an air inlet valve (2), the air inlet line is connected to a drainage pipe I, and the air outlet line is provided with an air outlet valve (3); the air outlet line is connected to a drainage pipe II; the drainage pipe I and the drainage pipe II are both connected to a gas drainer (11), the gas drainer (11) is arranged in a closed tank, a gas alarm (12) is arranged in the closed tank, the drainage pipe I and the drainage pipe II are respectively connected to a steam main pipe; the gas drainer (11) is connected to an underground tank.
2. The gas equipment pipeline drainage system according to claim 1, characterized in that: The steam main pipe is divided into a steam pipe I and a steam pipe II. The steam pipe I is connected to the drain pipe I through a valve I (6); the steam pipe II is connected to the drain pipe II through a valve II (9).
3. The gas equipment pipeline drainage system according to claim 2, characterized in that: The steam pipeline I is provided with a cut-off valve I (5) and a cut-off valve II (7), and the steam pipeline I is connected between the cut-off valve I (5) and the cut-off valve II (7); the steam pipeline II is provided with a cut-off valve III (8) and a cut-off valve IV (10), and the steam pipeline II is connected between the cut-off valve III (8) and the cut-off valve IV (10).
4. The gas equipment pipeline drainage system according to claim 2, characterized in that: The valve I (6) and valve II (9) are both electromagnetic valves; the valve I (6) and valve II (9) are electrically connected to a controller (4).
5. The gas equipment pipeline drainage system according to claim 4, characterized in that: The drainage pipe I and the drainage pipe II are provided with a heat-insulating layer, and an electric heating belt is arranged inside the heat-insulating layer. The electric heating belt is electrically connected to a controller (4).
6. The gas equipment pipeline drainage system according to claim 5, characterized in that: The thermal insulation layer is made of glass wool or polyurethane.