Gas emission monitoring control system

Abstract

The utility model belongs to the technical field of gas internal combustion engine power generation, and particularly relates to a gas diffusion monitoring control system which comprises a gas inlet end, a generator set, a wet type diffusion valve and an electric butterfly valve, the wet type diffusion valve is provided with an inner cylinder and an outer cylinder, the inner cylinder is connected with the outer cylinder through a one-way gas inlet mechanism, a diffusion pipeline is connected to the inner cylinder, and the electric butterfly valve is connected with the generator set. A gas inlet pipeline and a gas conveying pipeline are connected to the outer cylinder, the gas inlet pipeline is connected with a gas inlet end, a pressure transmitter is arranged on the gas inlet pipeline, and the gas conveying pipeline is connected with a generator set; a connecting pipeline is arranged between the gas conveying pipeline and the diffusing pipeline, and the electric butterfly valve is arranged on the connecting pipeline; compared with the prior art, the device can be automatically controlled to carry out various operations, the operation efficiency and accuracy are improved, and the accident rate caused by slow operation, missing operation and misoperation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas internal combustion engine power generation technology, and in particular to a gas emission monitoring and control system. Background Technology

[0002] In the field of gas-fired internal combustion engine power generation, combustible gas is required as fuel. For economic and convenience reasons, these engines are typically located at locations with readily available gas supply, and the gas is supplied to the internal combustion engine via pipeline. During operation, a sudden surge in the gas intake can overload the engine, affecting its safety and lifespan. Therefore, to prevent this, the gas intake must be kept stable. Consequently, wet venting valves are usually installed on the gas supply pipelines. When gas supply fluctuations occur, excess gas is released and vented to prevent excessive pressure within the pipeline, ensuring stable operation of the internal combustion engine.

[0003] In existing technical solutions, the common method is to rely on manual operation. However, manual operation requires high personnel skills and is prone to errors, omissions, or delays, which affect the stability of the system. Therefore, it is necessary to develop a gas emission monitoring and control system that can automatically control the gas emission. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by developing a gas emission monitoring and control system that can automatically control equipment to perform various operations, thereby improving operational efficiency and accuracy and reducing the accident rate caused by slow operation, missed operations, and misoperations.

[0005] The technical solution of this utility model to solve the technical problem is as follows: a gas venting monitoring and control system, including a gas inlet end, a generator set, a wet venting valve and an electric butterfly valve. The wet venting valve is provided with an inner cylinder and an outer cylinder. The inner cylinder is connected to the outer cylinder through a one-way air intake mechanism. A venting pipe is connected to the inner cylinder. A gas inlet pipe and a gas conveying pipe are connected to the outer cylinder. The gas inlet pipe is connected to the gas inlet end. A pressure transmitter is provided on the gas inlet pipe. The gas conveying pipe is connected to the generator set. A connecting pipe is provided between the gas conveying pipe and the venting pipe. The electric butterfly valve is provided on the connecting pipe.

[0006] Preferably, the inner cylinder is also connected to a water supply pipe, which supplies water from the water supply end.

[0007] Preferably, an electric water supply valve is installed on the water supply pipeline.

[0008] Preferably, a temperature transmitter is installed in the water supply pipe and the inner cylinder, and a heat tracing cable is installed in the water supply pipe and the inner cylinder.

[0009] Preferably, the wet vent valve is equipped with a remote level gauge.

[0010] Preferably, the inner cylinder is also connected to a drainage pipe, and the drainage pipe is equipped with an electric drain valve.

[0011] Preferably, the one-way air intake mechanism is a conduit, the inner cylinder is filled with water, the conduit is inverted, and the water level is filled to the point that it covers the end of the conduit.

[0012] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0013] 1. By setting up a water supply pipeline, along with a water supply valve and a remote level gauge, the water level in the inner cylinder can be automatically controlled to maintain a predetermined height;

[0014] 2. By installing heat-insulating heating tape in the water supply pipe and the inner cylinder, and using a temperature transmitter installed in the water supply pipe, the heat-insulating heating tape can be controlled according to the water temperature to prevent freezing, which could cause the venting to fail or the pipe to be damaged.

[0015] 3. By installing a pressure transmitter, the gas pressure in the pipeline and wet venting valve can be detected in real time, and the gas can be released in conjunction with the electric butterfly valve and inner cylinder to maintain a stable intake pressure;

[0016] 4. By setting up a conduit that extends into the water in the inner cylinder, when the pressure is constant, the gas will not enter the inner cylinder due to the water pressure. When the pressure is high, on the one hand, excess gas can be forced into the inner cylinder and released through the venting pipe, and on the other hand, the opening of the electric butterfly valve is increased to maintain a stable intake pressure.

[0017] 5. By setting an electric drain valve, when the water level in the inner cylinder is higher than the set value, the electric drain valve can be controlled to automatically drain water and maintain a constant water level;

[0018] 6. This utility model integrates multiple gas release-related systems into a single control system, facilitating unified monitoring and control;

[0019] 7. Using digital automation equipment for various operations can effectively improve operational efficiency and accuracy, and reduce the accident rate caused by slow operation, missed operation, and misoperation;

[0020] 8. By monitoring all operational data in real time through the system, abnormal data can be detected in a timely manner and alarms can be triggered to remind staff to carry out maintenance, which helps to improve the overall safety and stability of the system operation. Attached Figure Description

[0021] Figure 1 This is a diagram of the equipment system of this utility model;

[0022] Figure 2 This is a cross-sectional view of a wet vent valve;

[0023] Figure 3 Connection diagram for equipment, equipment control box, and industrial control computer;

[0024] Figure 4 This is a flowchart of the pressure control process;

[0025] Figure 5 Here is a flowchart of the water level control process;

[0026] Figure 6 This is a flowchart of the heat preservation control process.

[0027] The components include: 1. Water supply end; 101. Water supply pipeline; 102. Electric water supply valve; 103. Temperature transmitter; 2. Gas inlet end; 21. Gas inlet pipeline; 22. Pressure transmitter; 3. Wet vent valve; 31. Remote level gauge; 32. Inner cylinder; 321. Conduit; 322. Vent pipeline; 323. Drainage pipeline; 324. Electric drain valve; 33. Outer cylinder; 34. Gas conveying pipeline; 341. Connecting pipeline; 4. Electric butterfly valve; 5. Equipment control box; 6. Industrial control computer; 7. Generator set; 8. Thermal insulation heating tape. Detailed Implementation

[0028] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0029] Example 1

[0030] See Figures 1 to 2 A gas venting monitoring and control system includes a gas inlet end 2, a generator set 7, a wet venting valve 3, and an electric butterfly valve 4. The wet venting valve 3 is provided with an inner cylinder 32 and an outer cylinder 33. The inner cylinder 32 is connected to the outer cylinder 33 through a one-way air intake mechanism. A venting pipe 322 is connected to the inner cylinder 32. A gas inlet pipe 21 and a gas conveying pipe 34 are connected to the outer cylinder 33. The gas inlet pipe 21 is connected to the gas inlet end 2 and a pressure transmitter 22 is provided on the gas inlet pipe 21. The gas conveying pipe 34 is connected to the generator set 7. A connecting pipe 341 is provided between the gas conveying pipe 34 and the venting pipe 322, and the electric butterfly valve 4 is provided on the connecting pipe 341.

[0031] like Figure 1As shown, the inner cylinder 32 is also connected to a water supply pipe 101, which is supplied with water by the water supply end 1.

[0032] like Figure 1 As shown, an electric water supply valve 102 is installed on the water supply pipeline 101.

[0033] like Figure 1 As shown, a temperature transmitter 103 is installed at the water supply pipe 101 and the inner cylinder 32, and a heat tracing cable 8 is installed at the water supply pipe 101 and the inner cylinder 32.

[0034] like Figure 1 As shown, a remote level gauge 31 is installed on the wet vent valve 3.

[0035] like Figure 1 and Figure 2 As shown, a drain pipe 323 is also connected to the inner cylinder 32, and an electric drain valve 324 is installed on the drain pipe 323.

[0036] like Figure 2 As shown, the one-way air intake mechanism is a conduit 321, the inner cylinder 32 is filled with water, the conduit 321 is inverted and the water level is filled to the end of the conduit 321.

[0037] Principles and operating procedures

[0038] like Figures 3 to 6 As shown, this utility model communicates with each component through the equipment control box 5 and the industrial control computer 6. The equipment control box 5 and the industrial control computer 6 are interconnected. The industrial control computer 6 receives signals from each sensor and controls each component through the equipment control box 5 to achieve automatic control.

[0039] During normal system operation, gas enters the wet vent valve 3 along the gas inlet pipe 21. Due to the water level pressure in the inner cylinder 32, the gas cannot enter the inner cylinder 32. Instead, the gas is transported from the outer cylinder 33 to the generator set 7 via the gas delivery pipe 34. During this process, the electric water supply valve 102 remains normally closed, and the electric butterfly valve 4 maintains a certain opening. The pressure transmitter 22, temperature transmitter 103, and remote level gauge 31 continuously read relevant data and send it to the industrial control computer 6. The equipment control box 5 controls the electric water supply valve 102, the electric drain valve 324, and the electric butterfly valve 4 based on the received signals.

[0040] like Figure 4As shown, when the gas intake fluctuates, if the pressure inside the gas delivery pipeline 34 is too high, the pressure transmitter 22 sends the pressure data to the industrial control computer 6. After receiving the signal, the industrial control computer 6 transmits it to the equipment control box 5. The equipment control box 5 controls the electric butterfly valve 4 to increase its opening. On the one hand, excess gas is discharged to the venting pipeline 322 through the connecting pipeline 341 for venting. At the same time, excess gas enters the wet venting valve 3 and, under pressure, enters the inner cylinder 32 through the conduit 321, and is then discharged to the venting pipeline 322. If the pressure inside the gas delivery pipeline 34 is too low, after receiving the pressure data, the industrial control computer 6 will control the electric butterfly valve 4 to decrease its opening through the equipment control box 5, thereby reducing the amount of gas vented.

[0041] like Figure 5 As shown, when the water level in the inner cylinder 32 of the wet vent valve 3 is too low due to gas release or other reasons, the remote level gauge 31 will also transmit the information to the industrial control computer 6. After receiving the signal, the industrial control computer 6 will transmit it to the equipment control box 5. The equipment control box 5 will control the electric water supply valve 102 to open and supply water. After the set water level is restored, the electric water supply valve 102 will be controlled to return to the normally closed state to stop supplying water. When the water level in the inner cylinder 32 of the wet vent valve 3 is at a high water level, the industrial control computer 6 will receive the level signal and transmit it to the equipment control box 5. The equipment control box 5 will control the electric drain valve 324 to open and discharge the excess water in the inner cylinder 32 to prevent the water pressure from being too high and affecting the venting.

[0042] like Figure 6 As shown, during system operation, the temperature transmitter 103 installed on the water supply pipe and the wet vent valve 3 will continuously send the temperature data to the equipment control box 5. After receiving the signal, the industrial control computer 6 will transmit it to the equipment control box 5. The equipment control box 5 will control the corresponding area's heat tracing cable 8 to provide heat to prevent freezing, which could cause vent failure or pipe damage. When the industrial control computer 6 determines that the pipe temperature has returned to the set value, it will receive the signal and transmit it to the equipment control box 5. The equipment control box 5 will then control the power supply to the heat tracing cable 8 to stop.

[0043] During the above process, if the industrial control computer 6 receives the corresponding signal and determines that the equipment has malfunctioned, it will trigger the corresponding alarm to remind the staff to carry out maintenance.

[0044] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Based on the technical solution of the present utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present utility model.

Claims

1. A gas emission monitoring and control system, comprising a gas inlet (2) and a generator set (7), characterized in that: It also includes a wet vent valve (3) and an electric butterfly valve (4). The wet vent valve (3) is provided with an inner cylinder (32) and an outer cylinder (33). The inner cylinder (32) is connected to the outer cylinder (33) through a one-way air intake mechanism. A vent pipe (322) is connected to the inner cylinder (32). A gas intake pipe (21) and a gas delivery pipe (34) are connected to the outer cylinder (33). The gas intake pipe (21) is connected to the gas intake end (2). A pressure transmitter (22) is provided on the gas intake pipe (21). The gas delivery pipe (34) is connected to the generator set (7). A connecting pipe (341) is provided between the gas delivery pipe (34) and the vent pipe (322). The electric butterfly valve (4) is provided on the connecting pipe (341).

2. The gas emission monitoring and control system according to claim 1, characterized in that, The inner cylinder (32) is also connected to a water supply pipe (101), which is supplied with water by the water supply end (1).

3. The gas emission monitoring and control system according to claim 2, characterized in that, An electric water supply valve (102) is installed on the water supply pipeline (101).

4. The gas emission monitoring and control system according to claim 2, characterized in that, Temperature transmitters (103) are installed in the water supply pipe (101) and the inner cylinder (32), and heat tracing tapes (8) are installed in the water supply pipe (101) and the inner cylinder (32).

5. A gas emission monitoring and control system according to claim 1, characterized in that, The wet vent valve (3) is equipped with a remote level gauge (31).

6. A gas emission monitoring and control system according to claim 1, characterized in that, The inner cylinder (32) is also connected to a drainage pipe (323), and an electric drain valve (324) is installed on the drainage pipe (323).

7. A gas emission monitoring and control system according to claim 1, characterized in that, The one-way air intake mechanism is a conduit (321), the inner cylinder (32) is filled with water, the conduit (321) is inverted, and the water level is filled to the end of the conduit (321).

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