Automatic exhaust device
Through the pneumatic butterfly valve and sensor system of the automatic exhaust device, the air exhaust volume is flexibly adjusted, which solves the problem of insufficient exhaust in emergency situations of gasification equipment, and achieves a balance of safety and energy consumption.
Patent Information
- Application Number
- CN202422196811.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the face of emergency situations, existing gasification equipment has insufficient exhaust frequency, resulting in the inaccurate removal of toxic and harmful gases, increasing safety risks and increasing energy consumption.
The automatic exhaust device is adopted to detect the equipment status through pneumatic butterfly valves and multiple sensors. The controller controls the swing angle of the butterfly valve flip to achieve flexible air exhaust volume adjustment to meet the needs in different situations.
It achieves meeting the minimum exhaust air frequency requirements and low energy consumption during normal operation, quickly eliminating harmful gases in emergencies, improving safety performance and reducing energy consumption.
Smart Images
Figure CN223282549U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of gasification equipment, in particular to an automatic exhaust device. Background Art
[0002] During the actual operation of gasification equipment, there are specific requirements for the number of exhausts within the equipment for safety and other reasons. Following the minimum exhaust frequency requirements stipulated by national standards, although they meet basic safety standards, may not be sufficient to quickly and effectively remove accumulated toxic and harmful gases in the face of an emergency, thereby prolonging the removal time of hazardous substances and increasing potential safety risks. In order to improve the safety performance of the equipment and its ability to respond to emergencies, increasing the number of exhausts has become an effective strategy. A higher exhaust frequency means a faster air exchange rate, which can dilute and discharge harmful gases more quickly, significantly improving the equipment's efficiency in handling harmful substances. However, increasing the number of exhausts will directly lead to an increase in energy consumption, which will put a certain amount of pressure on operating costs. Utility Model Content
[0003] Based on this, in order to solve the above problems, the present invention provides an automatic exhaust device.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] An automatic exhaust device includes a pneumatic butterfly valve installed between an upper and lower pipe via a flange, the pneumatic butterfly valve including a flap for blocking the pipe outlet and a cylinder located next to the pipe for driving the flap to swing, and a controller connected to the pneumatic butterfly valve with electrical wires, the flap having a closed state, a partially open state, and a fully open state, a high-temperature sensor for detecting high temperature, a flame sensor for detecting flame, a smoke sensor for detecting smoke, a combustible gas sensor for detecting combustible gas, and a leakage sensor for detecting leakage are provided next to the pneumatic butterfly valve, the high-temperature sensor, the flame sensor, the smoke sensor, the combustible gas sensor, and the leakage sensor are all electrically connected to the controller.
[0006] Using this technical solution, the controller controls the pneumatic butterfly valve's flap to swing to any angle. When the flap is horizontal, it completely blocks the duct and stops exhaust (the closed state); when the flap swings upward at any angle, it pauses to adjust the exhaust volume (the partially open state); and when the flap is upright, it achieves maximum exhaust volume (the fully open state). These three states allow for flexible switching to meet exhaust volume requirements in different situations.
[0007] In a specific implementation manner of the present utility model: the high temperature sensor is an infrared temperature sensor.
[0008] In a specific implementation manner of the present utility model: the flame sensor is an ultraviolet sensor, an infrared sensor, or a photoelectric sensor.
[0009] In a specific implementation manner of the present utility model: the smoke sensor is an ionization smoke sensor or a photoelectric smoke sensor.
[0010] In a specific embodiment of the present invention: the combustible gas sensor is a catalytic combustion sensor, an electrochemical sensor, or an infrared absorption sensor.
[0011] In a specific implementation manner of the present utility model: the leakage sensor is a catalytic combustion type combustible gas sensor or an electrochemical gas sensor.
[0012] The beneficial effects of the present invention are as follows: In the present invention, the flap of the pneumatic butterfly valve is controlled by a controller to swing to any angle. When the flap is in a horizontal position, the pipeline is completely blocked and exhaust is stopped, which is a closed state; when the flap swings upward at any angle and stops, it is used to adjust the exhaust volume to a partially open state; when the flap is in an upright position, the maximum exhaust volume of the pipeline is achieved, which is a fully open state. Then, multiple sensors are used to detect the operating status of the equipment in real time, and the signals are transmitted to the controller, which controls the flap to swing to the most appropriate angle. When the controller determines that the equipment is operating normally, it can switch to an intermediate state to meet the minimum number of times required by the national standard and achieve lower energy consumption. When there is an unexpected situation, the maximum exhaust volume or the closed state can be switched under the linkage of all sensors. The structure is simple and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] Figure 1 This is a structural diagram of an automatic exhaust device of the utility model;
[0015] Figure 2 It shows that each sensor is electrically connected to the controller;
[0016] Figure 3 The closed state is shown;
[0017] Figure 4 It shows a partially open state;
[0018] Figure 5 The fully open state is shown. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1 As shown, the utility model is an automatic exhaust device, comprising a pneumatic butterfly valve 2 installed between an upper pipe and a lower pipe 3 through a flange 1.
[0021] The pneumatic butterfly valve 2 includes a flap 201 for blocking the air outlet of the pipeline, and a cylinder 202 located next to the pipeline for driving the flap to swing.
[0022] Also includes a controller 4. The controller 4 is connected to the pneumatic butterfly valve 2 by electric wires.
[0023] Combine Figure 3 、 Figure 4 and Figure 5 As shown, when the flap 201 is in a horizontal position and completely blocks the air outlet of the pipe 3 to stop exhaust, it is in a closed state; when the flap 201 is swung upward at any angle and stays in a partially open state, this state can be used when the equipment is operating normally to meet the minimum number of times required by the national standard and achieve lower energy consumption; when the flap is in an upright position, the maximum exhaust volume of the pipe is in a fully open state.
[0024] Combine Figure 2 As shown, a high-temperature sensor 5 for detecting high temperatures, a flame sensor 6 for detecting flames, a smoke sensor 7 for detecting smoke, a combustible gas sensor 8 for detecting combustible gas, and a leakage sensor 9 for detecting leaks are installed next to the pneumatic butterfly valve 2. The high-temperature sensor 5, flame sensor 6, smoke sensor 7, combustible gas sensor 8, and leakage sensor 9 are all electrically connected to the controller. Thus, each sensor detects the operating status of the device and transmits the signal to the controller 4, which controls the flap to swing to the optimal angle.
[0025] In this embodiment, the high temperature sensor 5 is an infrared temperature sensor.
[0026] In this embodiment, the flame sensor 6 is an ultraviolet sensor, an infrared sensor, or a photoelectric sensor.
[0027] In this embodiment, the smoke sensor 7 is an ionization smoke sensor or a photoelectric smoke sensor.
[0028] In this embodiment, the combustible gas sensor 8 is a catalytic combustion type sensor, an electrochemical type sensor, or an infrared absorption type sensor.
[0029] In this embodiment, the leakage sensor 9 is a catalytic combustion type combustible gas sensor or an electrochemical gas sensor.
[0030] During operation, when the controller determines that the equipment is operating normally, it can switch to a partially open state, meeting the minimum number of times required by the national standard while achieving lower energy consumption. When the sensor detects an unexpected situation, it transmits the information to the controller, controlling the pneumatic butterfly valve to fully open or closed.
[0031] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.
Claims
1. An automatic exhaust device, comprising a pneumatic butterfly valve mounted between upper and lower pipes via a flange, the pneumatic butterfly valve comprising a flap for sealing the pipe outlet, and a cylinder located adjacent to the pipe for driving the flap to swing, and a controller connected to electrical wiring of the pneumatic butterfly valve, the flap having a closed state, a partially open state, and a fully open state, characterized in that: A high-temperature sensor for detecting high temperature, a flame sensor for detecting flame, a smoke sensor for detecting smoke, a combustible gas sensor for detecting combustible gas, and a leakage sensor for detecting leakage are provided next to the pneumatic butterfly valve. The high-temperature sensor, the flame sensor, the smoke sensor, the combustible gas sensor, and the leakage sensor are all electrically connected to the controller.
2. The automatic exhaust device according to claim 1, characterized in that: The high temperature sensor is an infrared temperature sensor.
3. The automatic exhaust device according to claim 1, characterized in that: The flame sensor is an ultraviolet sensor, an infrared sensor, or a photoelectric sensor.
4. The automatic exhaust device according to claim 1, characterized in that: The smoke sensor is an ionization smoke sensor or a photoelectric smoke sensor.
5. The automatic exhaust device according to claim 1, characterized in that: The combustible gas sensor is a catalytic combustion type sensor, an electrochemical type sensor, or an infrared absorption type sensor.
6. The automatic exhaust device according to claim 1, characterized in that: The leakage sensor is a catalytic combustion type combustible gas sensor or an electrochemical gas sensor.