Mobile low-concentration peculiar smell VOCs (Volatile Organic Compounds) monitoring device

Abstract

The utility model relates to the technical field of environment detection, in particular to a mobile low-concentration odor VOCs (Volatile Organic Compounds) monitoring device. A wind direction sensor and a low-concentration peculiar smell VOCs gas collecting end capable of rotating in the horizontal direction are arranged on the top face of a movable vehicle body, a controller and a driving mechanism in transmission connection with the low-concentration peculiar smell VOCs gas collecting end are arranged in the movable vehicle body, and the wind direction sensor and the driving mechanism are electrically connected with the controller. The current air flow direction is detected through the wind direction sensor and fed back to the controller, the controller controls the driving mechanism to adjust the horizontal orientation of the low-concentration peculiar smell VOCs gas collection end so that the low-concentration peculiar smell VOCs gas collection end can be in a right opposite state with the current air flow direction, and horizontal rotation adjustment can be carried out along with the current air flow direction in real time; therefore, non-stop cruise monitoring is realized, and the acquisition efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to a mobile low-concentration odor VOCs monitoring device. Background Art

[0002] VOCs (volatile organic compounds) refer to organic compounds with a saturated vapor pressure greater than 133.32 Pa at room temperature and a boiling point less than 260°C at normal pressure. Due to their serious impact on production and the ecological environment, their management has become an important issue of concern to the country and enterprises.

[0003] At present, environmental management departments use low-concentration odor VOCs analyzers to conduct fixed-point patrol inspections at various monitoring points in a specific area. Since the patrol direction determines the direction of air collection, if the patrol direction is not relative to the current air flow direction, it will affect the air collection at the monitoring point. In addition, since the olfactory threshold of substances that cause low-concentration odor VOCs pollution is often very low, some may reach the ppb level or even the ppt level, which will in turn affect the analysis results of the low-concentration odor VOCs analyzer. If it is necessary to adjust the air collection direction after stagnating at the monitoring point, the collection efficiency will be greatly reduced. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a mobile low-concentration odor VOCs monitoring device, which can greatly improve the low-concentration odor VOCs gas collection efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A mobile low-concentration odor VOCs monitoring device comprises a mobile body, wherein a wind direction sensor and a low-concentration odor VOCs gas collection end which can rotate in a horizontal direction are arranged on the top surface of the mobile body, wherein one end of the low-concentration odor VOCs gas collection end is located outside the mobile body and the other end is connected to a low-concentration odor VOCs analyzer located inside the mobile body through a tower-type joint; a controller and a driving mechanism which is transmission-connected to the low-concentration odor VOCs gas collection end are arranged inside the mobile body, and the wind direction sensor and the driving mechanism are electrically connected to the controller respectively.

[0007] Furthermore, the low-concentration odor VOCs gas collection end is an L-shaped tube body, and the tube body is vertically arranged at one end of the long side corresponding to the L-shape. The outer surface of the tube body corresponding to the long side of the L-shape is sleeved with a ring gear, and the driving shaft of the driving mechanism is provided with a transmission gear meshing with the ring gear. The rotation of the driving shaft of the driving mechanism drives the tube body to rotate in the horizontal direction.

[0008] Further, one end of the tube body corresponding to the short side of the L shape is horizontally arranged, and one end of the tube body corresponding to the short side of the L shape has a flare.

[0009] Further, a wind speed sensor electrically connected to the controller is also provided on the top surface of the moving vehicle body. The caliber of the flare is adjustable. A negative pressure device electrically connected to the controller is provided inside the moving vehicle body, and the negative pressure device is connected to the low-concentration odor VOCs gas collection end.

[0010] Further, the flare is formed by a plurality of hinges partially stacked in sequence. An adjusting ring is sleeved on the short side of the tube body corresponding to the L shape. The plurality of hinges are respectively hinged to the adjusting ring through connecting rods. A screw rod assembly electrically connected to the controller is installed at one end of the short side of the tube body corresponding to the L shape away from the flare. The screw rod assembly is connected to the adjusting ring so that the adjusting ring can move back and forth along the axial direction of the tube body.

[0011] Further, the number of the wind direction sensors is four, and they are respectively distributed around the low-concentration odor VOCs gas collection end with the low-concentration odor VOCs gas collection end as the center.

[0012] Further, the four wind direction sensors are distributed corresponding to the four vertex positions of a square.

[0013] Further, a cover body for covering the low-concentration odor VOCs gas collection end is also provided on the top surface of the moving vehicle body, and the cover body is detachably connected to the top surface of the moving vehicle body.

[0014] The beneficial effects of the present utility model are as follows:

[0015] A mobile low-concentration odor VOCs monitoring device provided by the present utility model, by providing a wind direction sensor and a rotatable low-concentration odor VOCs gas collection end along the horizontal direction on the top surface of the moving vehicle body, one end of the low-concentration odor VOCs gas collection end is located outside the moving vehicle body and the other end is connected to a low-concentration odor VOCs analyzer located inside the moving vehicle body through a tower joint; a controller and a driving mechanism drivingly connected to the low-concentration odor VOCs gas collection end are provided inside the moving vehicle body, and the wind direction sensor and the driving mechanism are respectively electrically connected to the controller. When reaching the monitoring point, the current air flow direction is detected by the wind direction sensor and fed back to the controller, and the controller controls the driving mechanism to adjust the horizontal orientation of the low-concentration odor VOCs gas collection end so that the low-concentration odor VOCs gas collection end is in a facing state with the current air flow direction, and can horizontally rotate and adjust in real time following the current air flow direction to dynamically maintain the facing state of the two, so as to realize non-stop cruise monitoring during the collection of low-concentration odor VOCs gas, and greatly improve the collection efficiency. Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the structure of a mobile vehicle body of a mobile low-concentration odor VOCs monitoring device of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a mobile low-concentration odor VOCs monitoring device from one perspective of the utility model;

[0018] Figure 3 It is a structural schematic diagram of another perspective of a mobile low-concentration odor VOCs monitoring device of the utility model;

[0019] Figure 4 This is a structural schematic diagram of a low-concentration odor VOCs gas collection end of a mobile low-concentration odor VOCs monitoring device of the utility model;

[0020] Figure 5 for Figure 4 A partial enlarged view of

[0021] Description of labels:

[0022] 1. Mobile body; 2. Wind direction sensor; 3. Low-concentration odor VOCs gas collection terminal; 4. Ring gear; 5. Driving mechanism; 51. Transmission gear; 6. Bell mouth; 61. Hinge; 62. Adjustment ring; 7. Connecting rod; 8. Screw assembly; 9. Low-concentration odor VOCs analyzer. DETAILED DESCRIPTION

[0023] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0024] Please refer to Figures 1 to 5 The utility model provides a mobile low-concentration odor VOCs monitoring device, comprising a mobile body, a wind direction sensor and a low-concentration odor VOCs gas collection end that can rotate in the horizontal direction are arranged on the top surface of the mobile body, one end of the low-concentration odor VOCs gas collection end is located outside the mobile body and the other end is connected to a low-concentration odor VOCs analyzer located inside the mobile body through a tower-type joint; a controller and a driving mechanism that is transmission-connected to the low-concentration odor VOCs gas collection end are arranged inside the mobile body, and the wind direction sensor and the driving mechanism are electrically connected to the controller respectively.

[0025] From the above description, it can be seen that the beneficial effects of the utility model are:

[0026] The utility model provides a mobile low-concentration odor VOCs monitoring device. The device comprises a wind direction sensor and a low-concentration odor VOCs gas collection end that can rotate in a horizontal direction on the top surface of a mobile body, wherein one end of the low-concentration odor VOCs gas collection end is located outside the mobile body and the other end is connected to a low-concentration odor VOCs analyzer located inside the mobile body through a tower-type joint; a controller and a driving mechanism that is transmission-connected to the low-concentration odor VOCs gas collection end are provided inside the mobile body, the wind direction sensor and the driving mechanism are electrically connected to the controller respectively, so that when the monitoring point is reached, the current air flow direction is detected by the wind direction sensor and fed back to the controller, the controller controls the driving mechanism to adjust the horizontal direction of the low-concentration odor VOCs gas collection end so that the low-concentration odor VOCs gas collection end is in a directly facing state with the current air flow direction, and can perform horizontal rotation adjustment in real time following the current air flow direction to dynamically maintain the directly facing state of the two, so that non-stop cruise monitoring can be achieved when collecting low-concentration odor VOCs gas, thereby greatly improving the collection efficiency.

[0027] Furthermore, the low-concentration odor VOCs gas collection end is an L-shaped tube body, and the tube body is vertically arranged at one end of the long side corresponding to the L-shape. The outer surface of the tube body corresponding to the long side of the L-shape is sleeved with a ring gear, and the driving shaft of the driving mechanism is provided with a transmission gear meshing with the ring gear. The rotation of the driving shaft of the driving mechanism drives the tube body to rotate in the horizontal direction.

[0028] It can be seen from the above description that the tube body can be rotated in the horizontal direction through the above specific structural design.

[0029] Furthermore, one end of the tube body corresponding to the short side of the L-shape is horizontally arranged and one end of the tube body corresponding to the short side of the L-shape has a bell mouth.

[0030] It can be seen from the above description that the cross-sectional area of ​​the collection port is increased through the bell mouth, thereby improving the collection efficiency.

[0031] Furthermore, a wind speed sensor electrically connected to the controller is provided on the top surface of the mobile body, the caliber of the bell mouth is adjustable, a negative pressure device electrically connected to the controller is provided inside the mobile body, and the negative pressure device is connected to a low-concentration odor VOCs gas collection terminal.

[0032] From the above description, it can be seen that the current wind speed can be determined by the wind speed sensor. If the wind speed value is small, the collection efficiency can be ensured by adjusting the diameter of the bell mouth (such as increasing the diameter of the bell mouth) and controlling the negative pressure provided by the negative pressure device.

[0033] Further, the bell mouth is formed by partially stacking multiple hinges in sequence. An adjusting ring is sleeved on the short side of the L-shaped tube body. The multiple hinges are respectively hinged to the adjusting ring through connecting rods. A screw component electrically connected to the controller is installed at one end of the short side of the L-shaped tube body away from the bell mouth. The screw component is connected to the adjusting ring so that the adjusting ring can reciprocate along the axial direction of the tube body.

[0034] As can be seen from the above description, through the above specific structural design, the aperture adjustment of the bell mouth is realized. When the screw component controls the adjusting ring to move away from the bell mouth, the aperture of the bell mouth will become larger. When the adjusting ring moves towards the bell mouth, the aperture of the bell mouth will return to the size in the initial state.

[0035] Further, the number of the wind direction sensors is four, and they are respectively distributed around the low-concentration odor VOCs gas collection end with the low-concentration odor VOCs gas collection end as the center.

[0036] Further, the four wind direction sensors are distributed corresponding to the four vertex positions of a square.

[0037] As can be seen from the above description, using four wind direction sensors for wind direction monitoring is beneficial to ensuring the monitoring accuracy.

[0038] Further, a cover body for covering the low-concentration odor VOCs gas collection end is also provided on the top surface of the moving vehicle body, and the cover body is detachably connected to the top surface of the moving vehicle body.

[0039] As can be seen from the above description, the cover body is provided to play a role in protecting the device when not collecting. When collection is required, it can be manually removed.

[0040] Please refer to Figures 1 to 5 , Embodiment 1 of the present utility model is:

[0041] A mobile low-concentration odor VOCs monitoring device provided by the present utility model includes a moving vehicle body 1. A wind direction sensor 2, a low-concentration odor VOCs gas collection end 3 that can rotate horizontally, and a cover body for covering the low-concentration odor VOCs gas collection end (not shown in the figure) are provided on the top surface of the moving vehicle body 1; the cover body is detachably connected to the top surface of the moving vehicle body. It plays a role in protecting the device when not collecting. When collection is required, it can be manually removed.

[0042] The number of the wind direction sensors 2 is four, and they are respectively distributed around the low-concentration odor VOCs gas collection end 3 with the low-concentration odor VOCs gas collection end 3 as the center. Specifically, the four wind direction sensors are distributed corresponding to the four vertex positions of a square.

[0043] The top surface of the mobile body 1 is provided with an installation opening, in which a bearing is embedded and sleeved on the outer wall of the low-concentration odor VOCs gas collection terminal 3. One end of the low-concentration odor VOCs gas collection terminal 3 is located outside the mobile body 1 and the other end is connected to the low-concentration odor VOCs analyzer 9 located inside the mobile body through a tower-shaped joint 6; the inside of the mobile body is provided with a controller and a driving mechanism 5 that is transmission-connected to the low-concentration odor VOCs gas collection terminal, and the wind direction sensor and the driving mechanism are electrically connected to the controller respectively. Among them, the tower-shaped joint 6 adopts an existing product interface, as long as the size is adapted.

[0044] The low-concentration odor VOCs gas collection end 3 is an L-shaped tube body, and the tube body is vertically arranged at one end of the long side corresponding to the L shape, and the outer surface of the tube body corresponding to the long side of the L shape is sleeved with a ring gear 4, and the driving shaft of the driving mechanism 5 is provided with a transmission gear 51 meshing with the ring gear, and the transmission gear 51 on the driving shaft of the driving mechanism rotates to drive the tube body to rotate in the horizontal direction. Through the above-mentioned specific structural design, the tube body can be rotated in the horizontal direction.

[0045] The short side of the tube body corresponding to the L-shape is arranged horizontally and has a bell mouth 6 at one end of the short side of the tube body corresponding to the L-shape. The caliber of the bell mouth 6 is adjustable, and the bell mouth 6 is formed by partially stacking multiple hinges 61 in sequence; the hinges can be flat or curved, preferably curved. An adjustment ring 62 is sleeved on the short side of the tube body corresponding to the L-shape, and multiple hinges 61 are respectively hinged to the adjustment ring 62 through connecting rods 7. A screw assembly 8 electrically connected to the controller is installed on one end of the short side of the tube body corresponding to the L-shape away from the bell mouth, and the screw assembly 8 is connected to the adjustment ring 62 so that the adjustment ring can reciprocate along the axial direction of the tube body. When the screw assembly controls the adjustment ring to move away from the bell mouth, the caliber of the bell mouth will increase, and when the adjustment ring moves toward the bell mouth, the caliber of the bell mouth will return to the size of the initial state.

[0046] The top surface of the mobile body 1 is also provided with a wind speed sensor electrically connected to the controller, and the inside of the mobile body is provided with a negative pressure device electrically connected to the controller, and the negative pressure device is connected to the low-concentration odor VOCs gas collection terminal. The wind speed sensor can be used to determine the current wind speed. If the wind speed value is small, the collection efficiency can be ensured by adjusting the diameter of the bell mouth (such as increasing the diameter of the bell mouth) and controlling the negative pressure provided by the negative pressure device.

[0047] It should be noted that the electronic devices used in this solution are all existing products, among which the controller can be implemented using the control chip of the STM32 series, and a controlled relationship is established with each electronic device through its own communication interface, control interface and other IO interfaces.

[0048] In summary, the utility model provides a mobile low-concentration odor VOCs monitoring device, which is provided with a wind direction sensor and a low-concentration odor VOCs gas collection end that can rotate in the horizontal direction on the top surface of the mobile body, one end of the low-concentration odor VOCs gas collection end is located outside the mobile body and the other end is connected to the low-concentration odor VOCs analyzer located inside the mobile body through a tower-type joint; a controller and a driving mechanism that is transmission-connected to the low-concentration odor VOCs gas collection end are provided inside the mobile body, the wind direction sensor and the driving mechanism are electrically connected to the controller respectively, so that when the monitoring point is reached, the current air flow direction is detected by the wind direction sensor and fed back to the controller, the controller controls the driving mechanism to adjust the horizontal direction of the low-concentration odor VOCs gas collection end so that the low-concentration odor VOCs gas collection end is in a facing state with the current air flow direction, and can be horizontally rotated and adjusted in real time following the current air flow direction to dynamically maintain the facing state of the two, so that non-stop cruise monitoring can be achieved when collecting low-concentration odor VOCs gas, greatly improving the collection efficiency.

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A mobile low-concentration odor VOCs monitoring device, characterized in that: It comprises a mobile body, the top surface of which is provided with a wind direction sensor and a low-concentration odor VOCs gas collection end which can rotate in the horizontal direction, one end of the low-concentration odor VOCs gas collection end is located outside the mobile body and the other end is connected to a low-concentration odor VOCs analyzer located inside the mobile body through a tower-type joint; a controller and a driving mechanism which is transmission-connected to the low-concentration odor VOCs gas collection end are provided inside the mobile body, and the wind direction sensor and the driving mechanism are electrically connected to the controller respectively.

2. A mobile low-concentration odor VOCs monitoring device according to claim 1, characterized in that: The low-concentration odor VOCs gas collection end is an L-shaped tube body, and the tube body is vertically arranged at one end corresponding to the long side of the L-shape. The outer surface of the tube body corresponding to the long side of the L-shape is sleeved with a ring gear, and the driving shaft of the driving mechanism is provided with a transmission gear meshing with the ring gear. The driving shaft of the driving mechanism rotates to drive the tube body to rotate in the horizontal direction.

3. A mobile low-concentration odor VOCs monitoring device according to claim 2, characterized in that: The end of the tube body corresponding to the short side of the L-shape is horizontally arranged and the end of the tube body corresponding to the short side of the L-shape has a bell mouth.

4. A mobile low-concentration odor VOCs monitoring device according to claim 3, characterized in that: The top surface of the mobile body is also provided with a wind speed sensor electrically connected to the controller, the caliber of the bell mouth is adjustable, and a negative pressure device electrically connected to the controller is provided inside the mobile body, and the negative pressure device is connected to a low-concentration odor VOCs gas collection terminal.

5. A mobile low-concentration odor VOCs monitoring device according to claim 4, characterized in that: The bell mouth is formed by partially stacking a plurality of hinges on each other in sequence, an adjusting ring is sleeved on the short side of the tube body corresponding to the L shape, and the plurality of hinges are respectively hinged to the adjusting ring through connecting rods, and a screw assembly electrically connected to the controller is installed on one end of the short side of the tube body corresponding to the L shape away from the bell mouth, and the screw assembly is connected to the adjusting ring so that the adjusting ring can reciprocate along the axial direction of the tube body.

6. A mobile low-concentration odor VOCs monitoring device according to claim 1, characterized in that: The number of the wind direction sensors is four, and they are distributed around the low-concentration odor VOCs gas collection end with the low-concentration odor VOCs gas collection end as the center.

7. A mobile low-concentration odor VOCs monitoring device according to claim 5, characterized in that: The four wind direction sensors are distributed at the four vertices of the square.

8. The mobile low-concentration odor VOCs monitoring device according to claim 1 is characterized in that: The top surface of the mobile vehicle body is also provided with a cover body for covering the low-concentration odor VOCs gas collection end, and the cover body is detachably connected to the top surface of the mobile vehicle body.

Images