Safe and reliable burner water gas leakage detection device

Abstract

The utility model discloses a safe and reliable burner water gas leakage detection device which comprises a burner cooling water return tank, an online detection system, a ratio length type CO gas detection pipe, a valve and a portable trace gas sampling pump. The top of the burner cooling water return tank is connected with a blow-down pipe, the blow-down pipe is respectively connected with an on-line detection system and an inlet of the portable trace gas sampling pump through a first connecting pipe and a second connecting pipe, and the valve is arranged on the second connecting pipe. And the ratio length type CO gas detection pipe is connected to an outlet of the portable trace gas sampling pump. The device has the advantages that the device is higher in accuracy and reliability, leaked CO can be captured for a long time, and personnel do not need to be specially allocated to wait for observation at a monitoring point. And a detection point is placed at a safe position far away from the gasification furnace body, so that the safe operation environment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water coal gas leakage detection technical field especially relates to a safe and reliable burner water coal gas leakage detection device. BACKGROUND

[0002] Gasification furnace is the core device in coal chemical industry field, and the use condition of gasification burner will directly determine the stable operation of gasification system. In the actual operation process of burner type water coal slurry gasification furnace technology, the burner cooling water pipeline is prone to damage and leakage, which is an important factor leading to the emergency shutdown of the gasification furnace, which directly reduces the working efficiency and reliability of the coal gasification furnace. The burner cooling water return monitoring system is added in the initial design of the gasification furnace. That is, the CO in the water coal gas leakage is detected by online infrared detection and other means. However, in the actual application process, there are false positives in the online analysis of CO, which leads to the inability to determine whether to stop in time and accurately.

[0003] Therefore, it is usually necessary to conduct artificial secondary confirmation. However, when the leakage point is small or intermittent, it is difficult for the artificial to capture the leakage through the electrochemical method, and the operation close to the problem burner has safety risks. Therefore, it is urgent to develop a device that is sensitive in analysis, reliable in results, and can continuously monitor, so as to improve the detection accuracy. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a safe and reliable burner water coal gas leakage detection device to solve the foregoing problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A safe and reliable burner water coal gas leakage detection device, comprising a burner cooling water return tank, an online detection system, a specific length CO gas detection pipe, a valve and a portable trace gas sampling pump, wherein the top of the burner cooling water return tank is connected with a vent pipe, the vent pipe is connected with the inlet of the online detection system and the portable trace gas sampling pump through a first connecting pipe and a second connecting pipe respectively, the valve is arranged on the second connecting pipe, and the specific length CO gas detection pipe is connected at the outlet of the portable trace gas sampling pump.

[0007] Preferably, one end of the second connecting pipe away from the vent pipe is connected with an inlet hose, and the inlet hose is connected with the inlet of the portable trace gas sampling pump.

[0008] Preferably, cotton is arranged in the inlet hose.

[0009] Preferably, the portable micro gas sampling pump has an outlet hose connected to its outlet, and the outlet hose is connected to the longer gas detection tube.

[0010] Preferably, the device further includes a burner and a gasifier, the gasifier being connected to the burner, and the burner being connected to a burner cooling water return tank via a connecting hose.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model provides a device for detecting water gas leaks using pure chemical methods, overcoming the low reliability problems of infrared analysis and electrochemical analysis. It achieves secondary confirmation by combining online analysis with detection when water gas leaks from the burner cooling water pipeline, thus improving the accuracy of burner condition assessment. 2. Compared to online analysis, the device provided by this utility model has higher accuracy and reliability, and it can capture leaked CO for extended periods without requiring dedicated personnel to wait and observe at the monitoring point. Placing the detection point in a safe location away from the gasifier body improves the safe working environment. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the device in an embodiment of this utility model.

[0013] In the diagram: 1-Gasifier, 2-Burn, 3-Burn coolant return tank, 4-Connecting hose, 5-Vent pipe, 6-Online detection system, 7-Valve, 8-Longer CO gas detection tube, 9-Portable micro gas sampling pump, 10-Inlet hose, 11-Cotton. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0015] like Figure 1 As shown in this embodiment, a safe and reliable burner water-gas leakage detection device is provided, including a burner cooling water return tank 3, an online detection system 6, a specific length CO gas detection tube 8, a valve 7, a portable micro gas sampling pump 9, a burner 2, and a gasifier 1. A vent pipe 5 is connected to the top of the burner cooling water return tank 3. The vent pipe 5 is connected to the inlet of the online detection system 6 and the portable micro gas sampling pump 9 via a first connecting pipe and a second connecting pipe. The valve 7 is installed on the second connecting pipe. The specific length CO gas detection tube 8 is connected to the outlet of the portable micro gas sampling pump 9. The gasifier 1 is connected to the burner 2, and the burner 2 is connected to the burner cooling water return tank 3 via a connecting hose 4.

[0016] In the embodiment, the second connecting pipe is connected with an inlet hose 10 at one end away from the vent pipe 5, and the inlet hose 10 is connected with an inlet of the portable trace gas sampling pump 9.

[0017] In the embodiment, cotton 11 is arranged in the inlet hose 10, which is used to prevent moisture in the connecting pipe from entering the sampling pump.

[0018] In the embodiment, an outlet hose is connected with the outlet of the portable trace gas sampling pump 9, and the outlet hose is connected with the length-comparison type gas detection pipe.

[0019] In the embodiment, the working process of the device is as follows: a small hole is opened on the vent pipe 5 connected with the burner cooling water return tank 3, and one end of the second connecting pipe is inserted into the vent pipe 5 (a drainage groove is arranged on the upper portion of the pipe wall 1 of the vent pipe 5 at a position 1 cm away from the vent pipe 5, which is used to prevent water in the vent pipe 5 from entering the second connecting pipe). The second connecting pipe is led to a safe ventilation place, and a valve 7 is connected near the end of the second connecting pipe. When the CO value appears in the online detection system 6, the second connecting pipe after the valve 7 is connected with the inlet of the portable trace gas sampling pump 9 through the inlet hose 10, and cotton 11 is inserted into the inlet hose 10, which is further used to prevent water from being brought into the pump body. The valve 7 is opened, the portable trace gas sampling pump 9 is opened, the flow rate is adjusted to the maximum (2000 ml / min) for about 1 minute, and the original gas in the pipe is discharged, and then the flow rate is adjusted to 30-50 ml / min. The outlet hose is connected with the outlet of the portable trace gas sampling pump 9, and the end of the outlet hose is inserted into the length-comparison type CO gas detection pipe 8, and the result is read after 30-500 s (if the water gas leak is real, a yellow color strip will appear in the length-comparison type CO gas detection pipe 8, and the color strip will gradually move to the far end with the increase of the CO concentration and the extension of the time). If the leak has ended before the installation is completed, the state after the installation is maintained, and the on-site personnel are notified to read the result within 15 minutes when the CO value appears in the online detection system 6 again. If the time interval between two leaks is more than 1 hour, the detection pipe is replaced every 1 hour, so that the result is more accurate.

[0020] By adopting the above technical scheme of the utility model, the following beneficial effects are obtained:

[0021] The utility model provides a kind of safe and reliable burner water gas leakage detection device, the utility model provides a kind of pure chemical detection water gas leakage device, overcome the problem of low reliability of infrared analysis and electrochemical analysis, realize when burner cooling water pipeline leaks water gas, combined with the secondary confirmation work of on-line analysis detection, improve the accuracy of burner state judgment.Compared with on-line analysis, the device provided by the utility model is more accurate and reliable, and the device can capture leaked CO for a long time without the need for dedicated personnel to wait and observe at the monitoring point.The detection point is placed in a safe location away from the gasifier body, improving the safety operating environment.

[0022] The above is only the preferred embodiment of the utility model, and it should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, several improvements and refinements can be made, and these improvements and refinements should be considered within the scope of protection of the utility model.

Claims

1. A safe and reliable burner water gas leakage detection device, characterized in that: The burner cooling water return tank is provided with a vent pipe at the top, the vent pipe is connected with the inlet of the on-line detection system and the portable micro-gas sampling pump through the first connecting pipe and the second connecting pipe respectively, the valve is arranged on the second connecting pipe, and the specific length CO gas detection pipe is connected at the outlet of the portable micro-gas sampling pump.

2. A safe and reliable burner water gas leakage detection device according to claim 1, characterized in that: The second connecting pipe is connected with an inlet hose at the end far from the vent pipe, and the inlet hose is connected with the inlet of the portable micro-gas sampling pump.

3. A safe and reliable burner water gas leakage detection device according to claim 2, characterized in that: Cotton is arranged in the inlet hose.

4. The safe and reliable burner water gas leakage detection device according to claim 1, characterized in that: The outlet of the portable micro-gas sampling pump is connected with an outlet hose, and the outlet hose is connected with the specific length gas detection pipe.

5. The safe and reliable burner water gas leakage detection device according to claim 1, characterized in that: The device further comprises a burner and a gasification furnace, the gasification furnace is connected with the burner, and the burner is connected with the burner cooling water return tank through a connecting hose.

6. The safe and reliable burner water gas leakage detection device according to claim 1, characterized in that: The second connecting pipe is inserted into the vent pipe at the end far from the portable micro-gas sampling pump, and a drainage groove is arranged at the end 1 cm away from the wall of the vent pipe.

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