CN214953375U - VOCs (volatile organic compounds) navigation monitoring system - Google Patents

Abstract

The utility model discloses a VOCs (volatile organic compounds) navigation monitoring system, which relates to the technical field of gas monitoring, and comprises a movable carrier, wherein an air duct and a passage switching mechanism are arranged in the movable carrier, the air duct is connected with a first sampling pipe and a second sampling pipe which extend out of the movable carrier, the two ends of the air duct are respectively connected with a dust load monitor and a VOCs monitor, wherein the ventilation pipeline comprises a main ventilation pipeline, two ends of the main ventilation pipeline are respectively connected with a first branch pipe and a second branch pipe, the passageway switching mechanism is including setting up the piston piece in main vent-pipe, and piston piece screw thread runs through has the transmission lead screw that is located main vent-pipe, and the transmission lead screw is connected with the driving motor who is located main vent-pipe outside, and the length of piston piece is less than the interval between first sampling pipe and the second sampling pipe, the utility model has the advantages of can switch the pipeline in a flexible way according to the circumstances, have and prevent blockking up the function.

Description

VOCs (volatile organic compounds) navigation monitoring system

Technical Field

The utility model relates to a gaseous monitoring technology field, concretely relates to VOCs monitoring system that walks to navigate.

Background

Volatile Organic Compounds (VOCs) are important precursors for forming secondary pollutants such as fine particulate matters (PM2.5) and ozone (O3), and further cause atmospheric environmental problems such as dust haze and photochemical smog. The navigation monitoring system is used for rapidly establishing a regional atmosphere VOCs pollution space-time 'portrait' and establishing a regional atmosphere VOCs 'dynamic direct reading' mode by means of detecting while moving a mobile monitoring vehicle, monitoring and analyzing online data in real time, establishing geographic position-species-concentration correlation and the like.

Present monitoring system of navigating not only can carry out the polluted gas analysis, can also carry out dust concentration analysis, generally adopt respectively to stretch out the sampling pipe outside the monitoring vehicle, adopt the analytical instrument that one set of tube coupling corresponds respectively, perhaps through the same set of pipeline of three-way valve connection, can only carry out polluted gas analysis or dust concentration analysis according to the condition, but can not carry out polluted gas analysis or dust concentration analysis simultaneously, it carries out the monitoring of the other party again to switch the three-way valve after the monitoring of one of them party such as needs end, efficiency is lower, and adopt the three-way valve to use and gather the more easy jam of dust for a long time, it is insensitive to use, easy damage, the practicality is lower.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a VOCs monitoring system that navigates to reach the effect that can carry out polluted gas analysis, dust concentration analysis alone or simultaneously.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a VOCs (volatile organic compounds) navigation monitoring system comprises a movable carrier, wherein a ventilation pipeline and a passage switching mechanism are arranged in the movable carrier, the ventilation pipeline is connected with a first sampling pipe and a second sampling pipe which extend out of the movable carrier, and two tail ends of the ventilation pipeline are respectively connected with a dust load monitor and a VOCs monitor; the ventilation pipeline comprises a main ventilation pipeline, a first sampling pipe and a second sampling pipe are connected to the main ventilation pipeline, a first branch pipe and a second branch pipe are connected to two ends of the main ventilation pipeline respectively, the first branch pipe is connected with a dust deposition load monitor, and the second branch pipe is connected with a VOCs monitor; the passage switching mechanism comprises a piston block arranged in a main ventilation pipe, a transmission lead screw located in the main ventilation pipe penetrates through the piston block through a thread, the transmission lead screw is connected with a driving motor located outside the main ventilation pipe, the piston block can linearly move in the main ventilation pipe, the length of the piston block is smaller than the distance between a first sampling pipe and a second sampling pipe, and the piston block can block the opening of the first sampling pipe and the main ventilation pipe or the opening of the second sampling pipe and the main ventilation pipe.

Preferably, the primary ventilation pipe is a rectangular pipe, and the piston block is a square block matched with the rectangular pipe.

Preferably, the inner wall of the main ventilation pipe is provided with a guide rail along the length direction, and the piston block is slidably arranged on the guide rail.

Preferably, gas flow meters are arranged in the first branch pipe and the second branch pipe, and suction pumps are arranged between the first branch pipe and the dust deposit load monitor and between the second branch pipe and the VOCs monitor.

Preferably, be provided with the industrial computer in the removal carrier, driving motor, suction pump, laying dust load monitor and VOCs monitor all with industrial computer electric connection, industrial computer electric connection has the operation display screen that is located the removal carrier.

Preferably, there is rain-proof cap first sampling pipe and second sampling pipe top all through a plurality of leg joint.

Preferably, a solar cell module is arranged at the top of the movable carrier, the solar cell module is electrically connected with a photovoltaic charging controller, the photovoltaic charging controller is electrically connected with a storage battery pack, and the photovoltaic charging controller and the storage battery pack are both arranged in the movable carrier.

Preferably, solar module is including setting up the base at removal carrier top, and it has mounting bracket and support to articulate respectively on the base, is provided with solar cell panel on the mounting bracket, solar cell panel and photovoltaic charge controller electric connection, and a plurality of draw-in grooves have been seted up at the back that solar cell panel was kept away from to the mounting bracket, but support top joint is in corresponding the draw-in groove.

Preferably, the top of the support is made of a magnet material, and the mounting frame is made of a magnetic material.

The beneficial effects of the utility model are embodied in:

1. drive the positive and negative rotation of transmission lead screw through driving motor, thereby it moves or moves to the right in main vent-pipe to drive the piston piece, thereby plug up the opening of first sampling pipe and main vent-pipe or the opening of second sampling pipe and main vent-pipe, form one-way passage, can carry out the operation of polluted gas analysis or dust concentration analysis alone, when needs carry out polluted gas analysis and dust concentration analysis simultaneously, make the piston piece be located the position between first sampling pipe and the second sampling pipe, two openings all open can, the use is nimble, and through the mechanized automatic control of drive electrical apparatus, avoid the problem of pipeline jam.

2. The total amount of passing gas can be monitored through the arranged gas flowmeter so as to achieve the purpose of quantitative detection and improve the accuracy of detection and analysis data.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a VOCs navigation monitoring system provided by the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic structural view of the central ventilation duct of the present invention;

fig. 4 is a schematic structural diagram of the middle path switching mechanism of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 2;

fig. 6 is a schematic structural diagram of a solar cell module according to the present invention.

Reference numerals:

110-mobile carrier, 120-ventilation pipeline, 121-main ventilation pipeline, 122-first branch pipeline, 123-second branch pipeline, 130-channel switching mechanism, 131-piston block, 132-transmission screw rod, 133-driving motor, 140-first sampling pipe, 150-second sampling pipe, 160-dust accumulation load monitor, 170-VOCs monitor, 180-guide rail, 190-gas flowmeter, 210-suction pump, 220-industrial personal computer, 230-operation display screen, 240-rain-proof cap, 250-solar cell module, 251-base, 252-mounting rack, 2521-clamping groove, 253-support, 254-solar cell panel, 260-photovoltaic charging controller and 270-storage battery pack.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a number" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

As shown in fig. 1 to 6, the present embodiment provides a VOCs navigation monitoring system, which includes a movable carrier 110 (generally, an automobile), a ventilation duct 120 and a path switching mechanism 130 are disposed in the movable carrier 110, the ventilation duct 120 is connected to a first sampling tube 140 and a second sampling tube 150 extending out of the movable carrier 110, and two ends of the ventilation duct 120 are respectively connected to a dust load monitor 160 and a VOCs monitor 170; the ventilation pipeline 120 comprises a main ventilation pipeline 121, a first sampling pipe 140 and a second sampling pipe 150 are connected to the main ventilation pipeline 121, two ends of the main ventilation pipeline 121 are respectively connected with a first branch pipe 122 and a second branch pipe 123, the first branch pipe 122 is connected with a dust load monitor 160, and the second branch pipe 123 is connected with a VOCs monitor 170; the passage switching mechanism 130 comprises a piston block 131 arranged in the main vent pipe 121, a transmission screw 132 positioned in the main vent pipe 121 penetrates through the piston block 131 in a threaded manner, the transmission screw 132 is connected with a driving motor 133 positioned outside the main vent pipe 121, the driving motor 133 is fixed on the outer wall of the main vent pipe 121, a ball bearing matched with the transmission screw 132 is arranged on the side wall of the main vent pipe 121, the piston block 131 can move linearly in the main vent pipe 121, the length of the piston block 131 is smaller than the distance between the first sampling pipe 140 and the second sampling pipe 150, and the piston block 131 can block the through hole between the first sampling pipe 140 and the main vent pipe 121 or the through hole between the second sampling pipe 150 and the main vent pipe 121.

In this embodiment, when the polluted gas analysis needs to be performed, the driving motor 133 is started to drive the transmission screw 132 to rotate, and then the piston block 131 is driven to linearly slide to the lower part of the pipe orifice of the first sampling pipe 140 in the main vent pipe 121, so that the through orifices of the first sampling pipe 140 and the main vent pipe 121 are blocked, at the moment, gas forms a one-way passage when entering the main vent pipe 121 from the second sampling pipe 150, and only flows through the second branch pipe 123 and finally enters the VOCs monitor 170 to perform gas detection and analysis. Similarly, when dust concentration analysis is required, the driving motor 133 drives the transmission screw 132 to rotate reversely, so that the piston block 131 slides to the lower part of the pipe orifice of the second sampling pipe 150 to block the through ports of the second sampling pipe 150 and the main vent pipe 121, and the external atmosphere can enter the dust accumulation load monitor 160 through the first sampling pipe 140, the main vent pipe 121 and the first branch pipe 122 to analyze the dust concentration. When dust concentration analysis and gas detection analysis need be carried out simultaneously, make piston block 131 be located the position between first sampling pipe 140 and the second sampling pipe 150, form two-way passageway, and two passageways do not ventilate each other under piston block 131 sealing effect, improve work efficiency, it is nimble to use, the usage is extensive, and adopt mechanized automatic control, do not receive the dust to block up the influence, life cycle length.

The driving motor 133 is a stepping motor or a servo motor. A stepper motor is an electric motor that converts electrical pulse signals into corresponding angular or linear displacements. The rotor rotates an angle or one step before inputting a pulse signal, the output angular displacement or linear displacement is proportional to the input pulse number, and the rotating speed is proportional to the pulse frequency. The servo motor can control the speed and position accuracy accurately, and can convert the voltage signal into torque and rotating speed to drive a control object. The rotation speed of the rotor of the servo motor is controlled by an input signal and can quickly respond, the servo motor is used as an actuating element in an automatic control system, has the characteristics of small electromechanical time constant, high linearity and the like, and can convert a received electric signal into angular displacement or angular speed on a motor shaft for output. The servo motor is divided into two categories of direct current servo motors and alternating current servo motors, and is mainly characterized in that when the signal voltage is zero, the signal voltage has no autorotation phenomenon, and the rotating speed is reduced at a constant speed along with the increase of the torque. The stepping motor and the servo motor can control the rotating speed and the rotating direction, and the use requirement is met.

Specifically, the primary ventilation pipe 121 is a rectangular pipe, and the piston block 131 is a square block matched with the rectangular pipe, so that when the transmission screw 132 rotates, the piston block 131 is restricted by the rectangular pipe and cannot rotate along with the rectangular pipe, and therefore the rotary motion of the transmission screw 132 is converted into the linear motion of the piston block 131.

In another alternative embodiment, the inner wall of the primary vent pipe 121 is provided with a guide rail 180 along the length direction thereof, and the piston block 131 is slidably disposed on the guide rail 180, so that when the driving screw 132 rotates, the piston block 131 is restricted by the guide rail 180 and cannot rotate therewith, thereby converting the rotation of the driving screw 132 into the linear motion of the piston block 131.

In another alternative embodiment, the primary ventilation pipe 121 may be configured as a circular pipe, an internal thread is formed inside the circular pipe, and an external thread matched with the internal thread is formed on the outer wall of the piston block 131, so that the primary ventilation pipe 121 is fixed, and the piston block 131 is driven to move linearly.

Specifically, gas flow meters 190 are disposed in the first branch pipe 122 and the second branch pipe 123, and suction pumps 210 are disposed between the first branch pipe 122 and the dust load monitor 160 and between the second branch pipe 123 and the VOCs monitor 170. When the corresponding suction pump 210 is started, the corresponding pipeline airflow can be driven, and the gas fluidity is improved. The total amount of gas passing through the gas flowmeter 190 can be monitored, so that the purpose of quantitative detection is achieved, and the accuracy of detection and analysis data is improved.

Specifically, be provided with industrial computer 220 in the removal carrier 110, driving motor 133, the suction pump 210, laying dust load monitor 160 and VOCs monitor 170 all with industrial computer 220 electric connection, industrial computer 220 electric connection has the operation display screen 230 that is located removal carrier 110, can show the analysis data that laying dust load monitor 160 and VOCs monitor 170 sent on the operation display screen 230, gas flowmeter 190 also can electric connection operation display screen 230, direct display flow data, also can click operation control driving motor 133 through operation display screen 230, the start-stop of control element such as suction pump 210, be convenient for intelligent management.

Specifically, the tops of the first sampling tube 140 and the second sampling tube 150 are connected with a rain-proof cap 240 through a plurality of brackets 253, so that the sampling tube can be operated in a rainy day environment.

Specifically, the top of the mobile carrier 110 is provided with a solar cell module 250, the solar cell module 250 is electrically connected with a photovoltaic charging controller 260, the photovoltaic charging controller 260 is electrically connected with a storage battery 270, the photovoltaic charging controller 260 and the storage battery 270 are both arranged in the mobile carrier 110, and the storage battery 270 is used for supplying power to devices such as the driving motor 133, the suction pump 210, the dust load monitor 160, the VOCs monitor 170, the industrial personal computer 220, the operation display screen 230 and the like. Solar module 250 includes setting up at the base 251 at removal carrier 110 top, and it has mounting bracket 252 and support 253 to articulate respectively on the base 251, is provided with solar cell panel 254 on the mounting bracket 252, and solar cell panel 254 and photovoltaic charge controller 260 electric connection, a plurality of draw-in grooves 2521 have been seted up to the back that solar cell panel 254 was kept away from to mounting bracket 252, but support 253 top joint is in corresponding draw-in groove 2521.

Here, the support 253 is used for supporting the mounting frame 252 and enabling the mounting frame 252 to form a certain inclination angle, and when the top of the support 253 is clamped at different positions of the clamping grooves 2521 on the back of the mounting frame 252, the inclination angle of the mounting frame 252 and the overall solar cell panel 254 can be adjusted to adapt to the optimal illumination angle. Here, the base 251 may be fixed on the top of the moving carrier 110 by a plurality of screws to facilitate disassembly and assembly.

Specifically, the top of the support 253 is made of a magnet material, the mounting frame 252 is made of a magnetic material, the magnetic material is arranged in the region of the mounting frame 252 with the clamping grooves 2521, and when the top of the support 253 is clamped in the clamping grooves 2521, the support 253 and the mounting frame 252 are firmly fixed by magnetic adsorption, so that the support 253 and the mounting frame 252 are prevented from being scattered due to slight jolt of the mobile carrier 110.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (9)

1. A VOCs (volatile organic compounds) navigation monitoring system comprises a movable carrier and is characterized in that an air duct and a passage switching mechanism are arranged in the movable carrier, the air duct is connected with a first sampling pipe and a second sampling pipe which extend out of the movable carrier, and two tail ends of the air duct are respectively connected with a dust load monitor and a VOCs monitor; wherein,

the ventilation pipeline comprises a main ventilation pipeline, the first sampling pipe and the second sampling pipe are connected to the main ventilation pipeline, a first branch pipe and a second branch pipe are connected to two ends of the main ventilation pipeline respectively, the first branch pipe is connected with a dust deposition load monitor, and the second branch pipe is connected with a VOCs monitor;

the passageway switching mechanism is including setting up the piston piece in main vent pipe, piston piece screw thread runs through has the transmission lead screw that is located main vent pipe, the transmission lead screw is connected with the driving motor who is located main vent pipe outside, the piston piece can be at the intraductal rectilinear movement of main vent, the length of piston piece is less than the interval between first sampling pipe and the second sampling pipe, the piston piece can block up the opening of first sampling pipe and main vent pipe or the opening of second sampling pipe and main vent pipe.

2. A VOCs navigation monitoring system according to claim 1, wherein the primary ventilation tube is a rectangular tube and the piston block is a square block fitted to the rectangular tube.

3. A VOCs navigation monitoring system according to claim 1, wherein the inner wall of the primary ventilation duct has a guide rail along its length, and the piston block is slidably disposed on the guide rail.

4. A VOCs voyage monitoring system according to claim 1, wherein gas flow meters are arranged in the first branch pipe and the second branch pipe, and suction pumps are arranged between the first branch pipe and the dust deposit load monitor and between the second branch pipe and the VOCs monitor.

5. A VOCs monitoring system that walks by ship of claim 4, characterized in that, be provided with the industrial computer in the removal carrier, driving motor, suction pump, laying dust load monitor and VOCs monitor all with industrial computer electric connection, industrial computer electric connection has the operation display screen who is located the removal carrier.

6. A VOCs navigation monitoring system according to claim 1, wherein the tops of the first and second sampling tubes are connected with rain caps through a plurality of brackets.

7. A VOCs navigation monitoring system according to claim 1, wherein a solar cell module is disposed on top of the moving carrier, the solar cell module is electrically connected to a photovoltaic charge controller, the photovoltaic charge controller is electrically connected to a storage battery, and the photovoltaic charge controller and the storage battery are disposed in the moving carrier.

8. The VOCs navigation monitoring system according to claim 7, wherein the solar cell module comprises a base arranged at the top of the mobile carrier, the base is hinged with a mounting rack and a support respectively, the mounting rack is provided with a solar cell panel, the solar cell panel is electrically connected with the photovoltaic charging controller, the back of the mounting rack, which is far away from the solar cell panel, is provided with a plurality of clamping grooves, and the top of the support can be clamped in the corresponding clamping grooves.

9. A VOCs navigation monitoring system according to claim 8, wherein the top of the support is made of a magnetic material and the mounting bracket is made of a magnetic material.

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