Air suction type smoke detector capable of adjusting air suction speed in real time in field environment

By using a variable-speed suction pump and environmental sensors in aspirating smoke detectors, the suction speed can be adjusted in real time, solving the problem of untimely smoke collection in complex environments and achieving efficient collection and remote monitoring.

CN224217147UActive Publication Date: 2026-05-08SHENZHEN WOTEHUA SAFETY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN WOTEHUA SAFETY TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing aspirating smoke detectors cannot effectively collect smoke samples in complex environments due to their fixed aspirating speed, resulting in prolonged response time or wasted energy, and may also damage internal components.

Method used

It employs a variable-speed air pump and environmental parameter sensors to monitor on-site environmental parameters in real time. The air intake speed is adjusted by a controller, and real-time adjustment is achieved by combining a smoke detection module and a communication module.

Benefits of technology

It improves smoke collection efficiency, reduces energy consumption, extends equipment life, and enables remote monitoring and timely fire early warning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air suction type smoke detector capable of adjusting air suction speed in real time in a field environment, which relates to the field of smoke detectors, comprises a sampling pipeline, an air suction pump, an environmental parameter sensor, a controller and a smoke detection module, and is characterized in that one end of the sampling pipeline is provided with a monitoring area; the other end of the sampling pipeline is fixedly connected with the detector, the air suction pump is arranged in the detector, and one end of the air suction pump is fixedly connected with the sampling pipeline. Therefore, the energy consumption of the aspirator pump is reduced, and the service life of equipment is prolonged. And due to the remote monitoring function and the arrangement of the communication module, a worker can know the working state of the detector and the field environment condition in a remote monitoring center in real time, and corresponding measures can be conveniently taken in time.
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Description

Technical Field

[0001] This utility model relates to the field of smoke detectors, specifically an inhalation-type smoke detector that adjusts the inhalation speed in real time according to the on-site environment. Background Technology

[0002] Aspirating smoke detectors are early fire alarm devices that use air sampling tubes to draw air from a protected area into the detector for analysis, thereby providing fire warnings. However, existing aspirating smoke detectors typically have a fixed intake rate during operation, making it impossible to adjust in real time according to changes in the surrounding environment.

[0003] Traditional aspirating smoke detectors, which adjust their intake speed in real time according to the environment, may not be able to effectively collect smoke samples in complex environments, such as those with varying airflow speeds and smoke concentrations. When airflow is fast, a fixed intake speed may fail to capture smoke in time, leading to a prolonged detector response time and preventing timely fire warnings. Conversely, when airflow is slow, a high intake speed may waste energy and cause unnecessary damage to internal components such as the detector's optical system.

[0004] Therefore, those skilled in the art have provided an inhalation-type smoke detector that adjusts the inhalation speed in real time according to the on-site environment to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a smoke detector that adjusts its intake speed in real time according to the ambient environment. This addresses the problem of traditional smoke detectors that adjust their intake speed in real time in complex environments, such as those with varying airflow speeds or smoke concentrations. In these cases, a fixed intake speed may not effectively capture smoke samples. When the airflow speed is high, a fixed intake speed may not be able to detect smoke in time, leading to a prolonged response time and an inability to issue timely fire warnings. Conversely, when the airflow speed is low, a high intake speed may waste energy and cause unnecessary damage to components such as the detector's internal optical system.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A real-time adjustable inhalation speed smoke detector for on-site environments includes a sampling pipe, an inhalation pump, an environmental parameter sensor, a controller, and a smoke detection module. The sampling pipe has a monitoring area at one end and a detector fixedly connected to the other end. The inhalation pump is built into the detector, with one end fixedly connected to the sampling pipe. The environmental parameter sensor is located at the inlet of the sampling pipe. One end of the controller is electrically connected to the environmental parameter sensor, and the other end is electrically connected to the inhalation pump. The smoke detection module is built into the detector, with one end fixedly connected to the sampling pipe. The environmental parameter sensor includes a wind speed sensor, a temperature sensor, a humidity sensor, and a smoke concentration sensor. The inhalation pump includes a variable-speed centrifugal fan and a vortex fan.

[0008] As a preferred embodiment of this utility model: the controller stores an air intake speed adjustment strategy table corresponding to different combinations of environmental parameters.

[0009] In a preferred embodiment of this utility model, the detector has a built-in communication module, which is electrically connected to the controller and the detector is electrically connected to the remote monitoring center.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention relates to an aspirating smoke detector that adjusts its suction speed in real time according to the environment, improving smoke collection efficiency. By monitoring environmental parameters and adjusting the suction speed in real time, the detector can more effectively collect smoke samples under different environmental conditions, thereby improving the timeliness and accuracy of fire warnings. It also reduces energy consumption by avoiding fixed high-speed operation when not needed, thus reducing the energy consumption of the suction pump and extending the equipment's lifespan. Furthermore, the remote monitoring function and communication module allow personnel to monitor the detector's operating status and the surrounding environment from a remote monitoring center, facilitating timely action. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 A three-dimensional structural diagram of an aspirating smoke detector that adjusts its inhalation speed in real time according to the environment. Detailed Implementation

[0014] Please see Figure 1In this embodiment of the invention, an aspirating smoke detector that adjusts its inhalation speed in real time according to the ambient environment includes a sampling pipe, an air pump, an environmental parameter sensor, a controller, and a smoke detection module. One end of the sampling pipe is designated as a monitoring area, used to collect air samples from the ambient environment. One end of the sampling pipe is positioned in the area to be monitored, and the other end is connected to the detector body. The air pump is installed inside the detector body and connected to the sampling pipe, providing suction power to allow the air sample to enter the detector body through the sampling pipe. The environmental parameter sensor is located near the air inlet of the sampling pipe or inside the detector body, used to monitor environmental parameters in real time, including but not limited to airflow velocity, temperature, humidity, and smoke concentration. The other end of the sampling pipe is fixedly connected to the detector. The air pump is built into the detector, with one end fixedly connected to the sampling pipe. The environmental parameter sensor is located at the air inlet of the sampling pipe. The controller is electrically connected to the environmental parameter sensor and the air pump, receiving environmental parameter data collected by the environmental parameter sensor, analyzing and processing this data according to a preset algorithm, and then controlling the inhalation speed of the air pump based on the analysis results. The smoke detection module is installed inside the detector body and connected to the sampling pipe. It is used to detect and analyze smoke in air samples entering the detector body. When the smoke concentration reaches a preset alarm threshold, a fire warning signal is issued. The environmental parameter sensors include one or more of the following: wind speed sensor, temperature sensor, humidity sensor, and smoke concentration sensor. One end of the controller is electrically connected to the environmental parameter sensors, and the other end of the controller is electrically connected to the air intake pump. The smoke detection module is built into the detector, and one end of the smoke detection module is fixedly connected to the sampling pipe.

[0015] Please see Figure 1The environmental parameter sensors can monitor airflow speed, temperature, humidity, and smoke concentration. The controller stores a table of intake speed adjustment strategies for different combinations of environmental parameters. Upon receiving data from the environmental parameter sensors, the controller queries this table to determine the corresponding intake speed and sends a control signal to the intake pump to adjust its operating power, thereby changing the intake speed. Environmental parameter sensors can include wind speed sensors, temperature sensors, humidity sensors, and smoke concentration sensors. The intake pump can be a variable-speed centrifugal fan or a scroll fan. The variable-speed centrifugal or scroll fan can continuously adjust the intake speed within a certain range based on the controller's control signal. The detector also includes a communication module electrically connected to the controller. This module transmits the detector's operating status, environmental parameter data, and fire warning signals to a remote monitoring center, allowing personnel to monitor the situation in real time. The detector has a built-in communication module, which is electrically connected to the controller and the remote monitoring center.

[0016] The working principle of this invention is as follows: A sampling pipe is used to collect air samples from the environment. One end of the pipe is placed in the area to be monitored, and the other end is connected to the detector body. An air pump is installed inside the detector body and connected to the sampling pipe to provide suction power, allowing the air sample to enter the detector body through the sampling pipe. An environmental parameter sensor is placed near the air inlet of the sampling pipe or inside the detector body to monitor environmental parameters in real time. These environmental parameters include, but are not limited to, airflow velocity, temperature, humidity, and smoke concentration. A controller is electrically connected to the environmental parameter sensor and the air pump to receive environmental parameter data collected by the sensor, analyze and process this data according to a preset algorithm, and then control the suction speed of the air pump based on the analysis results. A smoke detection module is installed inside the detector body and connected to the sampling pipe to detect and analyze smoke in the air sample entering the detector body. When the smoke concentration reaches a preset alarm threshold, a fire warning signal is issued. The environmental parameter sensor includes one or more of a wind speed sensor, a temperature sensor, a humidity sensor, and a smoke concentration sensor. The controller stores a table of air intake speed adjustment strategies corresponding to different combinations of environmental parameters. Upon receiving data from environmental parameter sensors, the controller queries this table to determine the corresponding air intake speed and sends a control signal to the intake pump to adjust its operating power, thereby changing the air intake speed. The intake pump is a variable-speed centrifugal or vortex fan, capable of continuously adjusting the air intake speed within a certain range based on the controller's control signal. The detector also includes a communication module electrically connected to the controller. This module transmits information such as the detector's operating status, environmental parameter data, and fire warning signals to a remote monitoring center, allowing staff to monitor the situation in real time. An aspirating smoke detector capable of adjusting its air intake speed in real time based on the environment mainly consists of a sampling pipe, an intake pump, environmental parameter sensors, a controller, a smoke detection module, and a communication module. One end of the sampling pipe is located in the area to be monitored, such as a building corridor, computer room, or warehouse, while the other end is connected to the detector body. The intake pump is installed inside the detector body and connected to the sampling pipe via a pipeline. When the intake pump operates, it draws air samples from the environment into the detector body through the sampling pipe. Environmental parameter sensors are installed near the air inlet of the sampling pipe or inside the detector body to monitor environmental parameters in real time. In this embodiment, the environmental parameter sensors include a wind speed sensor, a temperature sensor, a humidity sensor, and a smoke concentration sensor, which are used to measure airflow speed, temperature, humidity, and smoke concentration, respectively. The controller is electrically connected to the environmental parameter sensors and the suction pump, receives the environmental parameter data collected by the sensors, analyzes and processes this data according to a preset algorithm, and then controls the suction speed of the suction pump based on the analysis results.The smoke detection module is installed inside the detector body and connected to the sampling pipe to detect and analyze smoke in the air sample entering the detector body. When the smoke concentration reaches a preset alarm threshold, the smoke detection module 5 issues a fire warning signal. The communication module 6 is electrically connected to the controller 4, transmitting information such as the detector's operating status, environmental parameter data, and fire warning signals to the remote monitoring center via wired or wireless means. The data acquisition controller 4 periodically receives environmental parameter data collected by the environmental parameter sensor 3, including airflow velocity, temperature, humidity, and smoke concentration. Data analysis: The controller 4 analyzes and processes the collected environmental parameter data according to a preset algorithm to determine the current environmental conditions. Strategy query: The controller stores a table of intake speed adjustment strategies corresponding to different combinations of environmental parameters. Based on the data analysis results, the controller queries this strategy table to determine the corresponding intake speed. Speed ​​adjustment controller sends a control signal to the intake pump to adjust the pump's operating power, thereby changing the intake speed and enabling the detector to collect smoke samples more effectively under the current environmental conditions. The alarm judgment controller simultaneously receives the detection results from the smoke detection module. When the smoke concentration reaches a preset alarm threshold, the controller sends a fire warning signal to the remote monitoring center via the communication module. In a computer room environment, when the wind speed sensor detects a fast airflow, the controller increases the suction speed of the air pump according to a preset strategy table to ensure timely collection of potential smoke samples; when the wind speed sensor detects a slow airflow, the controller reduces the suction speed of the air pump to reduce energy consumption. Simultaneously, when the smoke concentration sensor detects an increase in smoke concentration, the controller also increases the suction speed accordingly for more accurate smoke analysis. Aspirating smoke detectors that adjust their suction speed in real time based on the environment can improve smoke collection efficiency, reduce energy consumption, and achieve remote monitoring functions by monitoring environmental parameters in real time, demonstrating promising application prospects and market value.

[0017] 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 real-time adjustable inhalation speed smoke detector for on-site environments, comprising a sampling pipe, an inhalation pump, an environmental parameter sensor, a controller, and a smoke detection module, characterized in that, One end of the sampling pipe is provided with a monitoring area, and the other end of the sampling pipe is fixedly connected to a detector. The air pump is built into the detector, and one end of the air pump is fixedly connected to the sampling pipe. The environmental parameter sensor is set at the air inlet of the sampling pipe. One end of the controller is electrically connected to the environmental parameter sensor, and the other end of the controller is electrically connected to the air pump. The smoke detection module is built into the detector, and one end of the smoke detection module is fixedly connected to the sampling pipe. The environmental parameter sensor includes a wind speed sensor, a temperature sensor, a humidity sensor, and a smoke concentration sensor. The air pump includes a variable-speed centrifugal fan and a vortex fan.

2. The aspirating smoke detector with real-time adjustable aspirating speed according to claim 1, characterized in that, The controller stores an air intake speed adjustment strategy table corresponding to different combinations of environmental parameters.

3. The inhalation-type smoke detector with real-time adjustment of inhalation speed according to claim 1, characterized in that, The detector has a built-in communication module, which is electrically connected to the controller and to the remote monitoring center.