A pipe blockage clearing and back flushing device

Abstract

The utility model discloses a kind of pipeline clearing and unblocking backflusher, it includes: backflush system, backflush system includes jam monitoring module, backflushing and clearing module, numerical control module machine control terminal, wherein, jam monitoring module real-time monitoring pipeline pressure and powder flow, flow rate, according to pipeline pressure and powder flow, confirm whether pipeline is jammed according to flow rate change;Numerical control module receives the pipeline jamming information fed back by jam monitoring module and issues working instruction to backflushing and clearing module;Backflushing and clearing module controls backflush equipment to blow pipeline regularly, clean pipeline internal powder jamming.The pipeline clearing and unblocking backflusher proposed in the present application combines two cleaning modes of regular backflush and jamming abnormal backflush, continuously or stops pipeline backflush by verifying pipeline clearing effect, prevent pipeline jamming deterioration from causing equipment downtime, simultaneously, real-time monitoring pipeline jamming condition, stop or implement pipeline regular backflush, avoid backflush from causing compressed gas waste when pipeline is not jammed, reduce operating cost.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, specifically to a pipeline unblocking and backflushing device. Background Technology

[0002] In the production process of polymers such as polyethylene (PE), powdered raw materials or products need to be transported from the silo to the downstream process through pipelines. Due to the characteristics of powdered materials such as poor flowability, easy bridging and easy adhesion, material accumulation and blockage are very likely to occur during the transportation process, especially at pipe bends, diameter changes or pipe sections with insufficient inclination angle, which seriously affects the continuity and stability of production. However, existing methods for clearing pipe blockages typically involve using a backflushing device to periodically backflush the pipe. This involves opening a solenoid valve at preset time intervals to inject high-pressure gas into the pipe in a pulsed manner. The impact force of the airflow disrupts the material's buildup structure, thereby clearing the blockage. However, using timed backflushing to clear pipe blockages is not only prone to backflushing when the pipe is not blocked, resulting in a waste of compressed gas, but also makes it impossible to verify the clearing effect. If a backflushing fails to clear the blockage, the powder will continue to block the pipe, causing the blockage to worsen and affecting production efficiency. Moreover, when the backflushing frequency is low, it is impossible to deal with sudden blockages in time, resulting in untimely clearing. When the backflushing frequency is high, it will aggravate gas waste and equipment wear.

[0003] Therefore, there is an urgent need for a pipe clearing backflushing device that can backflush as needed based on the state of pipe blockage. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this application provides a pipeline unblocking backflushing device that combines two cleaning modes: timed backflushing and abnormal blockage backflushing. Backflushing can be continued or stopped based on the verification of the pipeline unblocking effect, preventing the pipeline blockage from worsening and causing equipment downtime. Simultaneously, the pipeline blockage status is monitored in real time, and timed backflushing can be stopped or implemented to avoid wasting compressed gas when backflushing occurs before the pipeline is blocked, thereby reducing operating costs and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pipeline unblocking backflushing device includes: a backflushing system, which includes a blockage monitoring module, a backflushing unblocking module, and a CNC module control terminal. The blockage monitoring module monitors pipeline pressure, powder flow rate, and velocity in real time, and confirms whether the pipeline is blocked based on changes in these parameters. The CNC module receives pipeline blockage information from the blockage monitoring module and sends working instructions to the backflushing unblocking module. The backflushing unblocking module controls the backflushing equipment to periodically spray the pipeline to clear powder blockages inside. Based on the blockage backflushing instructions from the CNC module, the backflushing unblocking module continuously controls the backflushing equipment to spray the pipeline, or, based on the non-blockage stop backflushing instructions from the CNC module, controls the backflushing equipment to stop periodically spraying the pipeline. The CNC module displays the pipeline blockage and unblocking information on the control terminal display screen.

[0006] Preferably, the blockage monitoring module includes a pressure monitoring unit and a flow rate monitoring unit. The pressure monitoring unit is used to monitor the internal pressure of the pipeline in real time and to confirm whether the pipeline is blocked based on the changes in the internal pressure. The flow rate monitoring unit is used to monitor the flow rate and velocity of the powder inside the pipeline in real time and to confirm whether the pipeline is blocked based on the changes in the flow rate and velocity of the powder.

[0007] Preferably, the backflushing and unblocking module includes a backflushing execution unit, a timed backflushing unit, and an abnormal backflushing unit. The backflushing execution unit controls the backflushing equipment to blow air through the pipeline to clear the powder blockage inside the pipeline. The timed backflushing unit sets the working interval of the backflushing execution unit and controls the backflushing equipment to blow air through the pipeline at regular intervals. The abnormal backflushing unit controls the backflushing equipment to continuously blow air through the pipeline based on the real-time monitored pipeline blockage information until the blockage inside the pipeline is cleared.

[0008] Preferably, the CNC module includes a data storage unit and a control unit. The data storage unit is used to store pipeline pressure, powder flow rate, flow velocity and backflushing equipment operation data in real time, and to form a system log of pipeline pressure, powder flow rate, flow velocity and backflushing equipment operation data for staff to view. The control unit receives pipeline blockage information and issues work instructions to the backflushing and unblocking module.

[0009] Preferably, the pressure monitoring unit and the flow rate monitoring unit are a pressure sensor and a microwave solid flow meter, respectively. The pressure sensor is installed downstream of the blockage point in the pipeline to monitor changes in airflow pressure in the pipeline, and the microwave solid flow meter is installed in the vertical section of the pipeline to detect changes in the instantaneous flow rate and velocity of the powder.

[0010] Preferably, the backflushing device includes a nozzle, an air supply pipe is provided at the input end of the nozzle, the other end of the air supply pipe is connected to an air source, and the air supply pipe has a pneumatic control valve for controlling the flow of the air source.

[0011] Preferably, the backflushing unblocking module also includes an abnormality warning unit. The abnormality warning unit provides an audible and visual alarm based on the activation of the abnormal backflushing unit, alerting staff to check the cause of repeated unblocking. The abnormality warning unit is an audible and visual alarm.

[0012] Compared with the prior art, the advantages of this utility model are as follows: The pipeline unblocking backflushing device proposed in this application combines a backflushing system with two cleaning modes: timed backflushing and abnormal blockage backflushing. By backflushing the pipeline at preset time intervals, the internal powder blockage of the pipeline is cleared. At the same time, the pipeline blockage is monitored, and the pipeline backflushing is stopped or resumed according to the pipeline blockage status. This avoids the waste of compressed gas caused by backflushing when the pipeline is not blocked, thus reducing operating costs. Finally, after pipeline backflushing, the pipeline backflushing is continued or stopped according to the real-time monitoring of pipeline blockage status to prevent the pipeline blockage from worsening and causing equipment downtime due to unsuccessful backflushing. This improves production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural block diagram of a backflush system according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating the unblocking process of a timed backflushing mode according to an embodiment of the present invention. Figure 3 This is a control flowchart of a timed backflush mode according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the backflush pipe according to an embodiment of the present invention. Detailed Implementation

[0015] Example 1 Combination Figures 1-4As shown in this embodiment, a pipeline unblocking backflushing device includes: a backflushing system, which includes a blockage monitoring module, a backflushing unblocking module, and a CNC module control terminal. The backflushing unblocking module controls the backflushing equipment to periodically spray the pipeline to clear powder blockages inside. The blockage monitoring module monitors the pipeline pressure, powder flow rate, and velocity in real time. Based on changes in these parameters, it confirms whether the pipeline is blocked after a single backflushing. The CNC module receives pipeline blockage information from the blockage monitoring module and issues a backflushing unblocking module a command to either backflushing if blocked or stopping backflushing if not blocked. The backflushing unblocking module continuously controls the backflushing equipment to spray the pipeline based on the backflushing command from the CNC module until the blockage is cleared. Simultaneously, as the scheduled backflushing time approaches, the backflushing unblocking module controls the backflushing equipment to stop periodically spraying the pipeline based on the non-blockage stop backflushing command from the CNC module, avoiding wasted compressed gas and reducing operating costs. Finally, the CNC module displays the pipeline blockage and unblocking information on the control terminal screen for operator viewing.

[0016] In this embodiment, the pressure monitoring unit and the flow rate monitoring unit are a pressure sensor and a microwave solid flow meter, respectively. The pressure sensor is installed downstream of the blockage point in the pipeline to monitor changes in airflow pressure within the pipeline, while the microwave solid flow meter is installed in the vertical section of the pipeline to detect changes in the instantaneous flow rate and velocity of the powder. Based on the changes in pipeline pressure and powder flow rate and velocity, it is determined whether the pipeline is blocked. By monitoring the pipeline blockage, backflushing of the pipeline is controlled to prevent the pipeline blockage from worsening and causing equipment downtime due to unsuccessful backflushing. This improves production efficiency.

[0017] In this embodiment, the backflushing device includes a nozzle, an air supply pipe is provided at the input end of the nozzle, the other end of the air supply pipe is connected to an air source, and the air supply pipe has a pneumatic control valve for controlling the flow of the air source; opening the pneumatic control valve on the air supply pipe allows compressed air to flow through the air supply pipe into the nozzle, and blow it into the pipeline from the nozzle nozzle, thereby cleaning the powder in the pipeline.

[0018] In this embodiment, the backflushing and unblocking module also includes an abnormality warning unit. The abnormality warning unit will issue an audible and visual alarm based on the activation of the abnormal backflushing unit, alerting the staff to check the cause of the repeated unblocking. The abnormality warning unit is an audible and visual alarm; the audible and visual alarm will alert the staff to the repeated blowing inside the pipeline, reminding the staff to check the pipeline condition.

[0019] Example 2 Based on Example 1, the timed backflushing interval of the pipeline is set to 3 minutes. The steps for timed backflushing and unclogging the pipeline are as follows: The backflushing unit is set to operate at a 3-minute interval. After 3 minutes, the backflushing unit controls the pneumatic control valve on the air supply pipe to open, allowing compressed air to flow through the air supply pipe into the nozzle and then be sprayed into the pipeline from the nozzle outlet to clean the powder in the pipeline. At the same time, pressure sensors and microwave solid flow meters are used to monitor the changes in air pressure, powder flow rate, and velocity inside the pipeline in real time. If the air pressure, powder flow rate, and velocity decrease, it is confirmed that the pipeline is still blocked after one backflushing. After receiving the blockage information, the abnormal backflushing unit controls the backflushing unit to continue working and repeat the pipeline spraying until the pipeline is cleared.

[0020] Example 3 Based on Example 1, a method for controlling the stopping of timed backflushing of the pipeline is set to a 3-minute interval: The timed backflushing unit is set to operate at a 3-minute interval. After 2.8 minutes, pressure sensors and microwave solid flow meters monitor the changes in air pressure, powder flow rate, and velocity inside the pipeline in real time. If there are no changes in air pressure, powder flow rate, and velocity, it is confirmed that the pipeline is not blocked. The control unit receives the information that the pipeline is not blocked and sends a stop backflushing command to the timed backflushing unit. The timed backflushing unit stops working and cancels the timed backflushing of the pipeline at that interval, thus avoiding the waste of compressed gas caused by backflushing when the pipeline is not blocked and reducing operating costs.

[0021] The working principle of this utility model is as follows: The pipeline unblocking backflushing device proposed in this application, by setting up a backflushing system, adopts two cleaning modes: timed backflushing and abnormal blockage backflushing. By backflushing the pipeline at preset time intervals, the internal powder blockage of the pipeline is cleared. At the same time, the pipeline blockage is monitored, and the pipeline backflushing is stopped or continued according to the pipeline blockage status. This avoids the waste of compressed gas caused by backflushing when the pipeline is not blocked, thus reducing operating costs. Finally, after pipeline backflushing, pipeline backflushing is continued or stopped according to the real-time monitoring of pipeline blockage status, preventing the pipeline blockage from worsening due to unsuccessful backflushing and causing equipment downtime, thereby improving production efficiency.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipe unblocking and backflushing device, comprising: A backflushing system, characterized in that it includes a blockage monitoring module, a backflushing unblocking module, and a CNC module control terminal. The blockage monitoring module monitors pipeline pressure, powder flow rate, and velocity in real time, and determines whether the pipeline is blocked based on changes in these parameters. The CNC module receives pipeline blockage information from the blockage monitoring module and sends working instructions to the backflushing unblocking module. The backflushing unblocking module controls the backflushing equipment to periodically spray the pipeline to clear internal powder blockages. Based on the blockage backflushing instructions from the CNC module, the backflushing unblocking module continuously controls the backflushing equipment to spray the pipeline, or stops periodically spraying the pipeline based on the non-blockage stop backflushing instructions from the CNC module. The CNC module displays the pipeline blockage and unblocking information on the control terminal display screen.

2. The pipe unblocking backflushing device according to claim 1, characterized in that, The blockage monitoring module includes a pressure monitoring unit and a flow rate monitoring unit. The pressure monitoring unit is used to monitor the internal pressure of the pipeline in real time and to determine whether the pipeline is blocked based on changes in the internal pressure. The flow rate monitoring unit is used to monitor the flow rate and velocity of the powder inside the pipeline in real time and to determine whether the pipeline is blocked based on changes in the flow rate and velocity of the powder.

3. The pipe unblocking backflushing device according to claim 1, characterized in that, The backflushing and unblocking module includes a backflushing execution unit, a timed backflushing unit, and an abnormal backflushing unit. The backflushing execution unit controls the backflushing equipment to blow air through the pipeline to clear the powder blockage inside the pipeline. The timed backflushing unit sets the working interval of the backflushing execution unit and controls the backflushing equipment to blow air through the pipeline at regular intervals. The abnormal backflushing unit controls the backflushing equipment to continuously blow air through the pipeline based on real-time monitored pipeline blockage information until the blockage inside the pipeline is cleared.

4. A pipe unblocking backflushing device according to claim 1, characterized in that, The numerical control module includes a data storage unit and a control unit. The data storage unit is used to store pipeline pressure, powder flow rate, flow velocity and backflushing equipment operation data in real time, and to form a system log of pipeline pressure, powder flow rate, flow velocity and backflushing equipment operation data for staff to view. The control unit receives pipeline blockage information and issues work instructions to the backflushing and unblocking module.

5. A pipe unblocking and backflushing device according to claim 2, characterized in that, The pressure monitoring unit and the flow rate monitoring unit are a pressure sensor and a microwave solid flow meter, respectively. The pressure sensor is installed downstream of the blockage point in the pipeline to monitor changes in airflow pressure in the pipeline, and the microwave solid flow meter is installed in the vertical section of the pipeline to detect changes in the instantaneous flow rate and velocity of the powder.

6. A pipe unblocking backflushing device according to claim 1, characterized in that, The backflush device includes a nozzle, an air supply pipe at the input end of the nozzle, an air supply pipe at the other end of the air supply pipe connected to an air source, and the air supply pipe has a pneumatic control valve for controlling the flow of the air source.

7. A pipe unblocking backflushing device according to claim 1, characterized in that, The backflushing and unblocking module also includes an abnormality warning unit. The abnormality warning unit will issue an audible and visual alarm based on the activation of the abnormal backflushing unit, alerting staff to check the cause of repeated unblocking. The abnormality warning unit is an audible and visual alarm.

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