Flue gas concentration detection equipment

Abstract

The utility model discloses flue gas concentration detection equipment. The flue gas concentration detection equipment comprises a flue gas concentration acquisition device, a processor and a display, the smoke concentration acquisition device comprises a shell, a suction assembly and a smoke sensor which are arranged in the shell, and a hose connected with an air inlet of the shell; a to-be-smoked cigarette is arranged at the other end of the hose; the smoke sensor is arranged in the suction assembly; the processor is in signal connection with the smoke sensor and is connected with the display. The smoke sensor is used for collecting the smoke concentration, then the smoke concentration is displayed on the displayer after analog-digital conversion of the processor, the smoke sensor is a semiconductor sensitive element and is high in response speed, high in sensitivity, small, light and easy to integrate, the smoke concentration is collected through the smoke sensor, and the detection precision is high; and the weight distribution problem caused by various detection methods is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, more particularly, to a flue gas concentration detection equipment. BACKGROUND

[0002] Cigarette smoke is a complex mixture of various compounds, and thousands of chemical components in cigarette smoke have been identified, some of which are inherent in tobacco, and others are unique to cigarette smoke.

[0003] ‌Cigarette smoke concentration is one of the important indicators to measure the quality of cigarettes and smoking experience, which directly affects the comfort and satisfaction of smokers. In the existing cigarette smoke concentration detection equipment, a variety of detection methods with different detection resolutions between smoke concentration changes (such as transmission method and scattering method) are combined to obtain the smoke concentration. Such detection system cannot accurately determine the weight of different detection methods on the smoke concentration, resulting in insufficient detection result accuracy. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a flue gas concentration detection equipment, which uses a smoke sensor to collect the flue gas concentration, and then displays the flue gas concentration on the display after analog-digital conversion by the processor. The smoke sensor uses a semiconductor sensitive element, which has fast response speed, high sensitivity, and is small, light, and easy to integrate. The smoke sensor is used to collect the flue gas concentration, which has high detection accuracy and avoids the weight distribution problem caused by multiple detection methods.

[0005] The present application provides a flue gas concentration detection equipment, which includes a flue gas concentration collection device, a processor, and a display.

[0006] The flue gas concentration collection device includes a shell, a suction assembly and a smoke sensor arranged in the shell, and a hose connected to the air inlet of the shell; the other end of the hose is arranged with a cigarette to be smoked; the smoke sensor is arranged in the suction assembly;

[0007] The processor is signal connected with the smoke sensor, and the display is connected with the processor.

[0008] Preferably, the suction assembly includes a pipe body fixed in the shell and a piston rod slidingly connected with the pipe body.

[0009] The first end of the pipe body is fixed on the inner side wall of the side of the shell where the air inlet is arranged, and the air inlet is coaxial with the pipe body.

[0010] Preferably, the smoke sensor is fixed in the pipe body and located between the air inlet and the end of the piston rod.

[0011] Preferably, a plurality of smoke sensors are arranged in the pipe body and distributed along the radial direction of the pipe body.

[0012] Preferably, the piston rod comprises a piston in sliding connection with the inner wall of the tube body, a pull rod fixedly connected with the end face of the piston away from the smoke sensor, and a baffle fixed at the end of the pull rod.

[0013] Preferably, the bottom inner wall of the shell is provided with a sliding rail extending along its axis.

[0014] The lower end of the pull rod is provided with a handle, the lower end of the handle is inserted into the sliding rail, and the driving component drives the handle to slide in the sliding rail.

[0015] Preferably, the handle is attached to the end face of the baffle.

[0016] Preferably, the air inlet is provided with a smoke filter.

[0017] Preferably, the tube body is made of transparent material, and the outer side of the tube body is provided with an infrared emitting sensor and an infrared receiving sensor in the radial direction, and the infrared receiving sensor is signal connected with the processor.

[0018] Preferably, the driving component is a pneumatic cylinder or a hydraulic cylinder.

[0019] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0021] Figure 1 Structure diagram of the smoke concentration detection equipment provided by the present application;

[0022] Figure 2 Perspective view of the suction assembly provided by the present application;

[0023] Figure 3 Front view of the suction assembly provided by the present application;

[0024] Figure 4 Left view of the suction assembly provided by the present application;

[0025] Figure 5 Vertical plane sectional view of the suction assembly provided by the present application;

[0026] Figure 6 Horizontal plane sectional view of the suction assembly provided by the present application. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present application unless specifically stated otherwise.

[0028] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application, its application, or uses.

[0029] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, the techniques, methods, and apparatus should be considered as being part of the specification.

[0030] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0031] The present application provides a flue gas concentration detection equipment, which adopts a smoke sensor to collect the flue gas concentration, and then displays the flue gas concentration on a display after analog-digital conversion by a processor. The smoke sensor adopts a semiconductor sensitive element, has fast response speed, high sensitivity, and is small, light, and easy to integrate. The smoke sensor is used to collect the flue gas concentration, has high detection accuracy, and avoids the weight distribution problem caused by various detection methods. On the basis of the above, a plurality of smoke sensors are evenly distributed along the radial direction of the pipe body, and the flue gas concentration is determined by calculating the average value of the collection results of all the smoke sensors, thereby further improving the detection accuracy of the flue gas concentration. In addition, the pipe body of the suction assembly in the present application is further provided with an infrared detector, which is used to calibrate the detection result of the smoke sensor, thereby ensuring the detection quality of the flue gas concentration.

[0032] As shown in FIG. 1, Figure 1 The flue gas concentration detection equipment provided by the present application includes a flue gas concentration collection device 100, a processor 200, and a display 300.

[0033] The flue gas concentration collection device 100 includes a shell 120, a suction assembly 130 and a smoke sensor 110 arranged in the shell 120, and a hose 400 connected to the air inlet of the shell 120. The other end of the hose 400 is provided with a cigarette to be smoked. The smoke sensor 110 is arranged in the suction assembly 130.

[0034] The processor 200 is in signal connection with the smoke sensor 110, and the display 300 is connected with the processor 200.

[0035] The cigarette to be smoked on the hose 400 is smoked by the movement of the suction assembly, and the smoke is sucked into the inside of the suction assembly 130. The smoke sensor 110 collects the concentration of the smoke and transmits it to the processor 200. The processor 200 converts the smoke concentration collection information into analog and digital signals and displays it through the display 300.

[0036] The smoke sensor (MQ2 sensor) is a sensor that can detect a variety of gases and is widely used in fields such as home, industry, medical care, environmental protection, etc. It is often used to detect harmful gases such as smoke, liquefied gas, acetone, ethanol, formaldehyde, and natural gas.

[0037] The MQ2 sensor has the characteristics of high reliability, uses high-quality semiconductor sensitive elements, has fast response speed and high sensitivity, is small and light, easy to install and integrate into various devices, and is relatively inexpensive compared to other gas detection sensors.

[0038] Preferably, as shown in Figures 3-6 The gas inlet of the shell 120 is provided with a smoke filter 160 to prevent the smoke from being brought into the suction assembly 130 due to excessive suction force during the suction process.

[0039] As an example, as shown in Figures 3-6 The suction assembly 130 includes a pipe body 1301 fixed in the shell 120 and a piston rod 1302 slidingly connected with the pipe body 1301. The first end of the pipe body 1301 is fixed to the inner side wall of the side of the shell 120 where the gas inlet is provided, and the gas inlet is coaxial with the pipe body 1301.

[0040] The smoke sensor 110 is fixed in the pipe body 1301 and located between the gas inlet and the end of the piston rod 1302.

[0041] As an example, as shown in Figures 5-6 The piston rod 1302 includes a piston 1306 slidingly connected with the inner wall of the pipe body 1301, a pull rod 1305 fixedly connected with the end face of the piston 1306 away from the smoke sensor 110, and a baffle 1304 fixed at the end of the pull rod 1305. By driving the pull rod 1305 and / or the baffle 1304 to drive the piston 1306 to move axially relative to the pipe body 1301, a suction force is generated between the piston 1306 and the gas inlet of the shell 120.

[0042] Preferably, as shown in Figures 4-6 A plurality of smoke sensors 110 are provided in the pipe body 1301 and are uniformly distributed along the radial direction of the pipe body 1301 for measuring the smoke concentration in different regions of the pipe body 1301. After obtaining the collection signals of all the smoke sensors 110, the processor 200 calculates the average value of all the collection signals and performs analog-to-digital conversion to obtain the final smoke concentration detection value.

[0043] As an example, as shown in Figures 2-6 the bottom inner wall of the shell 120 is provided with a slide rail 1201 extending along its axis. The lower end of the pull rod 1305 is clamped with a handle 1303, the lower end of the handle 1303 is inserted into the slide rail 1201, and the driving component drives the handle 1303 to slide in the slide rail 1201, realizing the sliding of the piston rod 1302.

[0044] As an example, the driving component is a pneumatic cylinder or a hydraulic cylinder.

[0045] Preferably, the handle 1303 is attached to the end face of the baffle 1304, and the movement stability of the handle 1303 is ensured by the baffle 1304 and the pull rod 1305.

[0046] On the basis of the above, as shown in Figure 2 , 4 and 6, the outer side of the pipe body 1301 is provided with an infrared emitting sensor 140 and an infrared receiving sensor 150 in the radial direction, forming an infrared detector, and the infrared receiving sensor 150 is signal connected with the processor 200. The infrared emitting sensor 140 and the infrared receiving sensor 150 are located on the same straight line with the plurality of smoke sensors 110, which are used to calibrate the detection results of the MQ2 sensor.

[0047] The pipe body 1301 is made of transparent material, when the infrared light emitted by the infrared emitting sensor 140 passes through the pipe body 1301 and is received by the infrared receiving sensor 150. The principle of different gases absorbing specific wavelength infrared light is used to measure the smoke concentration in the suction assembly 130, to determine whether the smoke concentration obtained by the MQ2 sensor is consistent with the smoke concentration in the suction assembly 130. When the deviation between the two is less than or equal to 0.01 mg / m 3 , it is proved that the detection result of the MQ2 sensor is accurate and reliable.

[0048] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A flue gas concentration detection apparatus characterized by, The device comprises a smoke concentration collecting device, a processor and a display. The smoke concentration collecting device comprises a shell, a suction assembly and a smoke sensor arranged in the shell, and a hose connected with an air inlet of the shell; the other end of the hose is arranged with a cigarette to be smoked; the smoke sensor is arranged in the suction assembly. The processor is signal connected with the smoke sensor, and the display is connected with the processor. The suction assembly comprises a pipe fixed in the shell and a piston rod in sliding connection with the pipe; the first end of the pipe is fixed on the inner side wall of the side of the shell where the air inlet is arranged, and the air inlet is coaxial with the pipe. The outer side of the pipe is provided with an infrared emitting sensor and an infrared receiving sensor in the radial direction; the infrared receiving sensor is signal connected with the processor. The infrared emitting sensor and the infrared receiving sensor are located on the same straight line with the smoke sensor, and are used for calibrating the detection result of the smoke sensor.

2. The flue gas concentration detection apparatus according to claim 1, characterized by, The smoke sensor is fixed in the pipe and located between the air inlet and the end of the piston rod.

3. The flue gas concentration detection apparatus according to claim 2, characterized by, The pipe is provided with a plurality of smoke sensors which are uniformly distributed along the radial direction of the pipe.

4. The flue gas concentration detection apparatus according to claim 1, characterized by, The piston rod comprises a piston in sliding connection with the inner wall of the pipe, a pull rod fixedly connected with the end face of the piston away from the smoke sensor, and a baffle fixed at the end of the pull rod.

5. The flue gas concentration detection apparatus according to claim 4, characterized by The bottom inner wall of the shell is provided with a sliding rail extending along the axis thereof. The lower part of the pull rod is clamped with a gripper, the lower end of the gripper is inserted into the sliding rail, and the driving member drives the gripper to slide in the sliding rail.

6. The flue gas concentration detection apparatus according to claim 5, characterized by The gripper is attached to the end face of the baffle.

7. The flue gas concentration detection apparatus according to claim 1, characterized by, The air inlet is provided with a smoke filter.

8. The flue gas concentration detection apparatus according to claim 5, characterized by, The pipe is made of transparent material, and the driving member is a pneumatic cylinder or a hydraulic cylinder.

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