Combustion suppression system for cotton powder conveying pipeline

Abstract

The utility model relates to the technical field of cellulose production, in particular to a combustion suppression system for a cotton powder conveying pipeline, which comprises a flame detector, a nitrogen injection component, an isolating valve and a controller, the nitrogen injection component comprises a nitrogen source and a nitrogen injection electromagnetic valve, and the nitrogen source is connected with the nitrogen injection electromagnetic valve through a nitrogen pipeline. The flame detector monitors the interior of the conveying pipeline in real time and monitors whether flames appear in the conveying pipeline or not, when flames appear in the conveying pipeline, the flame detector can capture flame signals within 5S and transmit the signals to the controller, the signals are analyzed and processed by the controller and then control the partition valve and the nitrogen injection electromagnetic valve to work, and the nitrogen injection electromagnetic valve is controlled to work. The partition valve quickly partitions the conveying pipeline, so that the nitrogen injection assembly injects nitrogen into the conveying pipeline, the nitrogen can restrain combustion of powder in the conveying pipeline, accidents are effectively handled in the germination stage, the use safety of the cotton powder conveying pipeline is improved, and the probability of accidents is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cellulose production, in particular to a flame suppression system for a cotton powder conveying pipeline. Background Art

[0002] In the cellulose production line, cotton powder is transported through pipelines. Cotton powder is prone to combustion. Once the pipeline catches fire, it is easy to cause the cotton powder to burn or even explode. However, the current cotton powder conveying pipelines are not equipped with a flame retardant system. The safety of the conveying pipelines is low and there are great safety risks. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a flame suppression system for a cotton powder conveying pipeline, wherein the flame suppression system can improve the use safety of the cotton powder conveying pipeline.

[0004] The utility model solves the technical problem thereof by adopting the following technical solution: a flame suppression system for a cotton powder conveying pipeline, comprising a flame detector, a nitrogen injection assembly, a shutoff valve and a controller, wherein the nitrogen injection assembly comprises a nitrogen source and a nitrogen injection solenoid valve, the nitrogen source and the nitrogen injection solenoid valve being connected via a nitrogen pipeline, the flame detector being arranged on the side wall of the conveying pipeline, and a probe of the flame detector being located inside the conveying pipeline, the nitrogen injection solenoid valve being arranged on the side wall of the conveying pipeline, the nitrogen pipeline being connected to the inside of the conveying pipeline via the nitrogen injection solenoid valve, and the shutoff valve being arranged in the conveying pipeline, and being capable of shutting off or connecting the conveying pipeline;

[0005] Along the cotton powder conveying direction, the flame detector, the nitrogen injection solenoid valve and the isolation valve are arranged in sequence, and the flame detector, the nitrogen injection solenoid valve and the isolation valve are all electrically connected to the controller.

[0006] Furthermore, there are two flame detectors, which are respectively arranged on the upper and lower sides of the conveying pipeline.

[0007] Furthermore, the controller is a programmable controller.

[0008] Furthermore, it also includes an audible and visual alarm, which is electrically connected to the controller.

[0009] Furthermore, it also includes a display and control terminal, which is electrically connected to the controller.

[0010] Furthermore, an explosion vent is provided on the isolation valve.

[0011] The beneficial effects of the present invention are as follows: the present invention is used for a flame suppression system for a cotton powder conveying pipeline, comprising a flame detector, a nitrogen injection component, a shutoff valve and a controller, wherein the nitrogen injection component comprises a nitrogen source and a nitrogen injection solenoid valve, and the nitrogen source and the nitrogen injection solenoid valve are connected via a nitrogen pipeline. The flame detector monitors the interior of the conveying pipeline in real time to detect whether a flame appears inside the conveying pipeline. When a flame appears inside the conveying pipeline, the flame detector can capture the flame signal within 5 seconds and transmit the signal to the controller. After the signal is analyzed and processed by the controller, the shutoff valve and the nitrogen injection solenoid valve are controlled to operate simultaneously. The shutoff valve quickly shuts off the conveying pipeline, allowing the nitrogen injection component to inject nitrogen into the conveying pipeline. The nitrogen can suppress the combustion of powder in the conveying pipeline, effectively handling accidents in the bud stage, improving the safety of the cotton powder conveying pipeline, and reducing the possibility of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model;

[0013] Marked as: flame detector 1, isolation valve 2, controller 3, nitrogen injection solenoid valve 4, sound and light alarm 5, display and control terminal 6, and delivery pipeline 7. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 As shown, the utility model is used for a flame suppression system of a cotton powder conveying pipeline, comprising a flame detector 1, a nitrogen injection component, a shutoff valve 2 and a controller 3. The nitrogen injection component comprises a nitrogen source and a nitrogen injection solenoid valve 4. The nitrogen source and the nitrogen injection solenoid valve 4 are connected through a nitrogen pipeline. The flame detector 1 is arranged on the side wall of the conveying pipeline 7, and the probe of the flame detector 1 is located inside the conveying pipeline 7. The nitrogen injection solenoid valve 4 is arranged on the side wall of the conveying pipeline 7. The nitrogen pipeline can be connected to the inside of the conveying pipeline 7 through the nitrogen injection solenoid valve 4. The shutoff valve 2 is arranged in the conveying pipeline 7, and the shutoff valve 2 can shut off or connect the conveying pipeline 7.

[0016] Along the cotton powder conveying direction, the flame detector 1, the nitrogen injection solenoid valve 4, and the isolation valve 2 are arranged in sequence, and the flame detector 1, the nitrogen injection solenoid valve 4, and the isolation valve 2 are all electrically connected to the controller 3. The electrical connection can be a wireless connection or a wired connection. To ensure stability, the present invention preferably uses a wired connection through a control cable.

[0017] The flame detector 1 monitors the interior of the conveying pipe 7 in real time to monitor whether there is a flame inside the conveying pipe 7. When a flame appears inside the conveying pipe 7, the flame detector 1 can capture the flame signal within 5 seconds and transmit the signal to the controller 3. After the signal is analyzed and processed by the controller 3, the isolation valve 2 and the nitrogen injection solenoid valve 4 are controlled to operate at the same time. The isolation valve 2 quickly isolates the conveying pipe 7, allowing the nitrogen injection component to inject nitrogen into the conveying pipe 7. The nitrogen can suppress the combustion of the powder in the conveying pipe 7, effectively handling the accident in its infancy, improving the safety of the cotton powder conveying pipe 7, and reducing the possibility of accidents.

[0018] Specifically, the flame detector 1 monitors the inside of the conveying pipe 7 in real time to monitor whether there is a flame inside the conveying pipe 7. In order to improve the monitoring effect of the flame detector 1, there are two flame detectors 1, which are respectively arranged on the upper and lower sides of the conveying pipe 7.

[0019] In order to facilitate the use of the controller 3, the controller 3 is a programmable controller.

[0020] In order to facilitate use and further improve safety, Figure 1 As shown, the present invention is further provided with an audible and visual alarm 5 and a display and control terminal 6, both of which are electrically connected to the controller 3. When the temperature in the delivery pipe 7 reaches the warning value, the controller 3 controls the activation of the audible and visual alarm, and the display and control terminal 6 simultaneously displays the abnormal temperature of the delivery pipe 7, which is easy for the staff to detect and alert them.

[0021] If the delivery pipeline 7 explodes, it is convenient to release the explosion pressure, and an explosion vent is provided on the isolation valve 2. During the explosion, the explosion shock wave releases the pressure through the explosion vent.

Claims

1. A flame suppression system for cotton powder conveying pipelines, characterized by: The invention comprises a flame detector (1), a nitrogen injection component, a shutoff valve (2) and a controller (3); the nitrogen injection component comprises a nitrogen source and a nitrogen injection solenoid valve (4); the nitrogen source and the nitrogen injection solenoid valve (4) are connected via a nitrogen pipeline; the flame detector (1) is arranged on the side wall of the delivery pipeline (7), and the probe of the flame detector (1) is located inside the delivery pipeline (7); the nitrogen injection solenoid valve (4) is arranged on the side wall of the delivery pipeline (7); the nitrogen pipeline can be connected to the inside of the delivery pipeline (7) via the nitrogen injection solenoid valve (4); the shutoff valve (2) is arranged in the delivery pipeline (7); and the shutoff valve (2) can shut off or connect the delivery pipeline (7); Along the cotton powder conveying direction, the flame detector (1), the nitrogen injection solenoid valve (4), and the isolation valve (2) are arranged in sequence, and the flame detector (1), the nitrogen injection solenoid valve (4), and the isolation valve (2) are all electrically connected to the controller (3).

2. The flame suppression system for a cotton powder conveying pipeline according to claim 1, characterized in that: The number of the flame detectors (1) is two, and the two flame detectors (1) are respectively arranged on the upper and lower sides of the conveying pipe (7).

3. The flame suppression system for a cotton powder conveying pipeline according to claim 1, characterized in that: The controller (3) is a programmable controller.

4. The flame suppression system for a cotton powder conveying pipeline according to claim 1, characterized in that: It also includes an audible and visual alarm (5), which is electrically connected to the controller (3).

5. The flame suppression system for a cotton powder conveying pipeline according to claim 1, characterized in that: It also includes a display and control terminal (6), which is electrically connected to the controller (3).

6. The flame suppression system for a cotton powder conveying pipeline according to any one of claims 1 to 5, characterized in that: The isolation valve (2) is provided with an explosion relief port.

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