Automatic purging device for cleaning air suction type smoke detection pipeline
By designing an automatic blower for cleaning the suction-type smoke detection pipeline, and using a solenoid valve to control the airflow direction and high-pressure gas to clean dust and impurities, the problem of dust accumulation affecting the detection effect is solved. This achieves automated cleaning and intelligent control, improving the operational stability and data accuracy of the equipment.
Patent Information
- Application Number
- CN202520133150.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing aspirating smoke detectors are prone to dust and impurities accumulating in the pipes during long-term operation, which affects the detection effect. Moreover, cleaning work relies on manual operation and lacks automated solutions.
An automatic blower for cleaning smoke detection pipelines using an aspiration-type design was designed. It includes a housing, a solenoid valve, a sampling tube, a main unit connecting tube, and an air inlet tube. The solenoid valve controls the airflow direction, and high-pressure gas is used to clean dust and impurities in the pipeline, thus achieving automated cleaning.
It effectively avoids the impact of dust and impurities on airflow, ensures the authenticity of detection data, improves the automation and intelligence of the equipment, and reduces manual maintenance costs.
Smart Images

Figure CN223789129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline purger technology, specifically to an automatic purger for cleaning pipelines with a suction-type smoke detection system. Background Technology
[0002] A pipeline purger is a device used to clean the inside of pipelines. It uses a high-speed flow of gas such as compressed air or nitrogen, or a liquid such as water, to flush away dust, welding slag, and other impurities from inside the pipeline. It mainly consists of three parts: a power unit, consisting of a compressor or pump, which provides the power to allow the gas or liquid to flow; a connection unit, including joints, valves, and pipes, which ensures a good seal and allows for flow control; and a nozzle unit, which affects the purging effect.
[0003] Given the current high level of fire safety awareness in various venues, aspirating smoke detectors play a crucial role. However, they also face some challenges in actual operation. When aspirating smoke detectors continuously extract air for extended periods, dust and impurities from the surrounding environment can enter the pipes in large quantities with the airflow. Because the detectors operate continuously, this dust cannot be expelled in time, accumulating over time and leaving a considerable amount of dust and impurities inside the pipes. Excessive accumulation acts as a major obstacle to smoke detection, making it difficult for the detector to accurately capture smoke signals, ultimately severely impacting the detection performance and creating potential fire safety hazards. Traditional pipe cleaning is entirely manual, lacking automation. Given the increasingly high labor costs today, automating such simple and repetitive tasks as purging and cleaning is of great practical significance. Utility Model Content
[0004] To solve the above-mentioned problems, this utility model proposes an automatic blower for cleaning smoke detection pipelines by designing an air-blowing cleaning structure, which cleans dust and impurities in the gas detection pipeline and ensures the authenticity of the detection data.
[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: an automatic blowing device for cleaning suction-type smoke detection pipelines, comprising:
[0006] The casing is a square frame, and an integrated circuit board is installed inside it;
[0007] The solenoid valve is fixedly installed inside the housing;
[0008] The sampling tube is fixed on one side of the housing, with one end extending into the housing and connected to the solenoid valve;
[0009] The main unit connecting tube is fixedly located on the side of the housing away from the sampling tube, and one end of it extends into the housing and connects to the solenoid valve. It is equipped with a fixed connector.
[0010] The air inlet pipe is fixed on the side of the housing away from the sampling tube, and one end of it extends into the housing and connects to the solenoid valve. It is equipped with a waterproof connector.
[0011] Furthermore, the end of the intake pipe near the solenoid valve is connected to the solenoid valve via a connecting pipe.
[0012] Furthermore, the connecting pipe is a three-bend pipe.
[0013] Furthermore, the sampling tube, connecting tube, housing, and solenoid valve are all detachably connected via sealing joints.
[0014] Furthermore, the end of the intake pipe furthest from the solenoid valve is connected to an external air compressor.
[0015] Furthermore, the solenoid valve is electrically connected to and controlled by the integrated circuit board.
[0016] Compared with existing technologies, the advantages of this invention are as follows: the purger is equipped with a sampling tube, a main unit connection tube, and an air inlet tube. This design allows for internal cleaning of the sampling tube. The solenoid valve's function is to switch the airflow direction and isolate the airflow from affecting the main unit, ensuring that the purger can promptly purge the sampling tube to prevent dust accumulation from affecting airflow. The solenoid valve is controlled by an integrated circuit board, which can precisely control the gas flow direction, ensuring that the purging and cleaning work are separated and operate efficiently and stably, guaranteeing good purging and self-cleaning effects. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a top view of the present invention;
[0019] Figure 3 This is a side view of the present invention;
[0020] Figure 4 This is the front view of this utility model.
[0021] As shown in the figure: 1. Housing; 2. Integrated circuit board; 3. Solenoid valve; 4. Sampling tube; 5. Main unit connecting tube; 6. Fixing joint; 7. Air inlet pipe; 8. Waterproof joint; 9. Connecting tube; 10. Sealing joint. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings.
[0023] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 4An automatic purger for cleaning smoke detection pipelines using an inhalation method includes: a housing 1, which is a square frame shape and houses an integrated circuit board 2; a solenoid valve 3, fixedly installed inside the housing 1; a sampling tube 4, fixedly installed on one side of the housing 1, with one end extending into the housing 1 and connected to the solenoid valve 3; a main unit connecting pipe 5, fixedly installed on the side of the housing 1 away from the sampling tube 4, with one end extending into the housing 1 and connected to the solenoid valve 3, and equipped with a fixing connector 6; and an air inlet pipe 7, fixedly installed on the side of the housing 1 away from the sampling tube 4, with one end extending into the housing 1 and connected to the solenoid valve 3, and equipped with a waterproof connector 8. The end of the air inlet pipe 7 away from the solenoid valve 3 is connected to an external air compressor, which can provide a stable air source to ensure sufficient power for cleaning and effectively complete the cleaning of the pipeline.
[0024] Combined with appendix Figure 1 Appendix Figure 2 The intake pipe 7 is connected to the solenoid valve 3 via a connecting pipe 9 at one end, facilitating the connection and installation between components, making the overall structure more rational, and promoting stable operation of the equipment. The connecting pipe 9 is a three-bend pipe, which can better adapt to the internal space layout of the equipment, achieving effective connection in a limited space, and keeping the intake pipe 7 away from the main unit connecting pipe 5, facilitating connection between both and external equipment.
[0025] Combined with appendix Figure 2 Appendix Figure 3 The sampling tube 4, connecting tube 9, housing 1, and solenoid valve 3 are all detachably connected by sealing joints 10, which facilitates subsequent maintenance and replacement of each pipe and component and improves the convenience of equipment maintenance.
[0026] Combined with appendix Figure 1 Appendix Figure 2 The solenoid valve 3 is electrically connected to and controlled by the integrated circuit board 2, enabling precise automated control and flexible adjustment of the blowing and cleaning operations according to actual needs, thereby improving the intelligence level of equipment use.
[0027] The specific implementation method of this utility model is as follows: First, properly connect the end of the air inlet pipe 7 away from the solenoid valve 3 to the external air compressor to ensure a stable connection and provide sufficient air supply for subsequent cleaning work. After the equipment is turned on, the integrated circuit board 2 starts to work. When a purging operation is required, connect the end of the main unit connecting pipe 5 to the smoke detector and the sampling pipe 4 to the external air supply equipment. The integrated circuit board 2 will send a command to the solenoid valve 3 to open the solenoid valve 3, ensuring that the air entering the sampling pipe 4 can smoothly enter the main unit connecting pipe 5. At this time, the gas generated by the external air supply equipment enters through the sampling pipe 4, is transferred through the solenoid valve 3, and is then transmitted to the main unit connecting pipe 5, and finally enters the smoke detector along the main unit connecting pipe 5.
[0028] The detector's main unit is equipped with an airflow sensor and a threshold setting. Exceeding the threshold will trigger an alarm. Specifically, if the airflow is too low due to blockage of the sampling hole, the main unit will alarm, requiring the sampling tube 4 to be purged. The integrated circuit board 2 will control the solenoid valve 3 to make changes, and the main unit connecting pipe 5 will close the air intake. The gas generated by the external air compressor will enter the sampling tube 4 after passing through the air intake pipe 7, connecting pipe 9, and solenoid valve 3. The high-pressure gas can clean the sampling tube 4. When performing the purging operation, an air pressure of 0.4 MPa-0.6 MPa should be applied to blow out the dust and impurities accumulated inside, preventing them from entering the smoke detector during subsequent purging operations and affecting the detection, thereby ensuring the authenticity of the detection data and achieving the purpose of automatic purging.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.
[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. An automatic blowing device for cleaning suction-type smoke detection pipelines, characterized in that, include: The housing (1) is a square frame, and an integrated circuit board (2) is installed inside it; Solenoid valve (3) is fixedly installed inside housing (1); The sampling tube (4) is fixedly installed on one side of the housing (1), and one end of it extends into the housing (1) and is connected to the solenoid valve (3); The main unit connecting pipe (5) is fixedly installed on the side of the housing (1) away from the sampling pipe (4), and one end of it extends into the housing (1) and connects to the solenoid valve (3). A fixed connector (6) is provided on it. An air inlet pipe (7) is fixedly installed on the side of the housing (1) away from the sampling pipe (4), and one end of it extends into the housing (1) and connects to the solenoid valve (3). A waterproof connector (8) is provided on it.
2. The automatic blowing device for cleaning suction-type smoke detection pipelines according to claim 1, characterized in that: The intake pipe (7) is connected to the solenoid valve (3) via a connecting pipe (9) at one end.
3. The automatic blowing device for cleaning suction-type smoke detection pipelines according to claim 2, characterized in that: The connecting pipe (9) is a three-bend pipe.
4. The automatic blowing device for cleaning suction-type smoke detection pipelines according to claim 2, characterized in that: The sampling tube (4), connecting tube (9), housing (1), and solenoid valve (3) are all detachably connected via sealing joints (10).
5. The automatic blowing device for cleaning suction-type smoke detection pipelines according to claim 1, characterized in that: The end of the air intake pipe (7) away from the solenoid valve (3) is connected to an external air compressor.
6. The automatic purger for cleaning suction-type smoke detection pipelines according to claim 1, characterized in that: The solenoid valve (3) is electrically connected to the integrated circuit board (2) and is electrically controlled by the integrated circuit board (2).