A system and method for rapid online detection of trace components in indoor air

Abstract

The present invention relates to the technical field of air trace detection, and specifically to an online rapid detection system and method for indoor air trace components, comprising: an air collecting pipe and a rotating shaft 1, one end of the air collecting pipe is fixedly installed with a filter screen, one end of the rotating shaft 1 penetrates and is rotatably connected to the other end of the air collecting pipe, and the shaft of the rotating shaft 1 located on the inner wall of the air collecting pipe is provided with a rotating heating mechanism. The present invention can drive the circular plate 1, the thread line 1, the thread line 2 and the circular plate 2 to operate during the process of rotating shaft 1 driving the suction blade to rotate and collect air, and can compress the outside air to heat it, and then let the hot air enter the centrifugal tank through the bellows to dehumidify the silica gel desiccant, thereby ensuring that the silica gel desiccant removes a part of the moisture before each use, thereby increasing the functionality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of air trace detection, and in particular to an online rapid detection system and method for indoor air trace components. Background Art

[0002] Air trace detection equipment consists of an air pump, storage, detection and analysis instruments and a display. Air trace detection is a technology for qualitative and quantitative analysis of substances with extremely low concentrations in the air, usually involving PPM (parts per million), PPD (parts per billion) and even PPT (parts per trillion) level material detection. For example, in the atmospheric environment, some harmful pollutants such as volatile organic compounds, persistent organic pollutants, heavy metals (such as gaseous compounds of mercury, lead, cadmium, etc.) and greenhouse gases (such as carbon dioxide, methane, etc.) may only exist in trace amounts, but their long-term accumulation and migration and transformation will have a profound impact on the global ecological balance, climate change and human health.

[0003] Among them, indoor air trace detection plays an important role in the health of humans indoors, but the indoor ambient temperature is also affected by the external environment. For example, if the indoor humidity is too heavy, it will cause some absorption liquids and trace substances to compete with water or hydrolyze. It is necessary to control the humidity to avoid moisture interfering with the absorption process. Controlling the indoor air humidity is very troublesome, and it will also cause water vapor to adhere to the inside of the equipment, which will increase the degree of oxidation of the inner wall of the equipment and reduce a certain service life.

[0004] Currently, activated carbon, desiccant or silica gel desiccant is generally used to let the vacuum pump collect dry air. However, if activated carbon and desiccant are used, they need to be replaced in time when the moisture absorption is saturated. If the replacement is not timely, it will also affect the detection result. If it needs to be replaced in time, the work intensity will increase, which is very inconvenient. If silica gel desiccant is used, it is necessary to heat and evaporate the moisture absorbed by the silica gel desiccant when the silica gel desiccant is saturated. However, this requires external heating equipment and needs to be heated in time, which is very troublesome. For this reason, the present invention provides an online rapid detection system and method for trace components in indoor air. Summary of the invention

[0005] The purpose of the invention is to solve the problem of inconvenience in heating a silica gel desiccant.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an online rapid detection system and method for indoor air trace components, comprising: an air collecting pipe and a rotating shaft, one end of the air collecting pipe is fixedly installed with a filter screen, one end of the rotating shaft penetrates and is rotatably connected to the other end of the air collecting pipe, the shaft of the rotating shaft located on the inner wall of the air collecting pipe is provided with a rotating heating mechanism, the end of the rotating shaft away from the air collecting pipe is installed with a motor, the other end of the rotating shaft is fixedly installed with a suction blade, and the outer wall of the air collecting pipe is connected with a water vapor pipe;

[0007] When the shaft is driven to rotate and absorb wind, the filter screen filters impurities in the air to prevent foreign matter from entering the air collecting pipe. During the rotation of the shaft, the rotating heating mechanism is driven to heat the air collecting pipe, and finally water vapor is discharged from the water vapor pipe.

[0008] As a preferred embodiment, two blocking plates are fixedly installed on the inner wall of the air collecting pipe, a silica gel desiccant is provided between the two blocking plates, a vortex tube is connected between the two blocking plates, a plurality of moisture tubes are provided on the outer wall of the vortex tube, a centrifugal groove is provided on the inner wall of the air collecting pipe between the two blocking plates, an air outlet pipe is connected to the outer wall of the air collecting pipe, and a detection device is connected to the other end of the air outlet pipe.

[0009] As a preferred embodiment, the highest point and the lowest point of the centrifugal tank are respectively connected to a feed pipe and a discharge pipe, the inner wall of the feed pipe is airtightly rotatably connected to a hemisphere, the outer wall of the feed pipe can be clamped with an n-shaped rod, and a square groove is opened on one side of the n-shaped rod.

[0010] As a preferred embodiment, an optical axis is fixedly installed on one side of the hemisphere, and the outer wall of the optical axis airtightly penetrates and is rotatably connected to the outer wall of the feed pipe. A conical rod is fixedly installed on the end of the optical axis away from the feed pipe, and the outer wall of the conical rod is slidably connected to the inner wall of the square groove. The feed pipe and the discharge pipe have the same structure.

[0011] As a preferred embodiment, the rotary heating mechanism includes a rotating shaft 1 having an outer wall thereof driven by a conveyor belt and having a rotating shaft 2, the shaft of the rotating shaft 2 penetrates and is rotatably connected to a fixing plate, the top of the fixing plate is fixedly mounted on the outer wall of the gas collecting pipe, one end of the rotating shaft 2 is fixedly mounted with a special-shaped gear, the special-shaped gear is meshed with a serrated ring, one end of the special-shaped gear is fixedly mounted with a connecting rod, the other end of the connecting rod is fixedly mounted with a circular plate 1, a side of the circular plate 1 away from the connecting rod is fixedly mounted with a thread line 1, and one side of the circular plate 1 is in airtight contact with a thread line The second thread line is fixedly mounted with a circular plate 2 on the outer wall away from the circular plate 1, and the circular plate 2, the second thread line, the first thread line and the circular plate 1 form an air compression device, and the inner wall of the circular plate 1 is provided with an air storage groove and an annular groove, and a plurality of ventilation grooves 1 are provided between the air storage groove and the annular groove, and the inner wall of the annular groove is airtightly slidably connected with a clamping ring, and the inner wall of the clamping ring is provided with ventilation grooves 2 in a circular array, and the ventilation grooves 2 can be connected with the ventilation grooves 1, and one side of the ventilation grooves 2 is connected with a bellows, and the top end of the bellows is connected with the inner wall of the gas collecting pipe;

[0012] The side of the circular plate 2 away from the thread line 2 is connected with an air collecting pipe, and the other end of the air collecting pipe is connected to the inner wall of the air collecting pipe. The connection point between the air collecting pipe and the air collecting pipe is located between the filter screen and the blocking plate.

[0013] As a preferred embodiment, a crescent-shaped telescopic rod is fixedly installed on the top of the serrated ring, the top end of the crescent-shaped telescopic rod is connected to the outer wall of the air collecting pipe, the top end of the crescent-shaped telescopic rod is connected to the blocking plate close to the suction blade, and the blocking plate close to the suction blade is provided with a one-way groove 1 and a one-way groove 2, and the inner walls of the one-way groove 1 and the one-way groove 2 are fixedly installed with a one-way valve.

[0014] As a preferred embodiment, the inner wall of the water vapor pipe is air-tightly slidably connected with a piston, and there is hydrogen between the piston and the inner top of the water vapor pipe. A spring is fixedly installed on the top of the piston, and the top of the spring is fixedly installed on the inner top of the water vapor pipe. The top of the piston is connected to a hollow tube 1, and the inner wall of the hollow tube 1 near the top is provided with an air outlet groove 1. The top of the water vapor pipe is connected to a hollow tube 2, and the inner wall of the hollow tube 2 near the top of the water vapor pipe is provided with an air outlet groove 2. A pull rod is fixedly installed on the top of the piston, and the rod body of the pull rod air-tightly penetrates and is slidably connected to the top of the water vapor pipe, and a circular pressing plate is fixedly installed on the top of the pull rod.

[0015] As a preferred embodiment, a method for online rapid detection of trace components in indoor air is characterized by comprising the following steps:

[0016] S1. First remove or install the n-shaped rod on the outer wall of the feed pipe, and then ensure that the silica gel desiccant between the two plugging plates is filled with enough. If you want to replace the new silica gel desiccant, you only need to remove or install the n-shaped rod on the outer wall of the discharge pipe;

[0017] S2, then start the motor, drive the shaft 1 and the suction blade to start rotating to suck air, the indoor air enters the inner wall of the vortex tube from the filter, the silica gel desiccant dries the sucked air through the wet air pipe, and finally flows out from the outlet pipe into the detection equipment for detection;

[0018] S3. In order to ensure the continuous use of silica gel desiccant, while the silica gel desiccant absorbs moisture from the air, the rotating shaft drives the rotating heating mechanism through the conveyor belt to make the hot air contact with the silica gel desiccant through the bellows, so that the moisture absorbed by the silica gel desiccant evaporates and is discharged from the water vapor pipe.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. The present invention cooperates with a conveyor belt, a rotating shaft 2, a special-shaped gear, a connecting rod, a serrated ring, a circular plate 1, a thread line 1, a thread line 2 and a circular plate 2. When the rotating shaft 1 drives the suction blade to rotate and collect air, the circular plate 1, the thread line 1, the thread line 2 and the circular plate 2 can be driven to operate, and the external air can be compressed and heated, and then the hot air enters the inner wall of the centrifugal tank through a bellows to dehumidify the silica gel desiccant, thereby ensuring that each time the silica gel desiccant is used, a portion of moisture is removed before the silica gel desiccant absorbs moisture. The operation steps are simple, and the functionality of the device is increased.

[0021] 2. The present invention cooperates with the blocking plate, the vortex tube, the moisture tube, the water vapor tube, the piston, the hollow tube 2, the air outlet groove 1, and the air outlet groove 2 and the hollow tube 1. When the silica gel desiccant absorbs moisture and contacts the hot air, the water vapor moves upward and then moves to the inner wall of the water vapor tube, and then is discharged through the connection between the air outlet groove 2 and the air outlet groove 1, thereby preventing the water vapor from accumulating on the inner wall of the centrifugal tank and preventing the silica gel desiccant from absorbing moisture and entering a saturated state. No manual operation is required, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention:

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the air outlet pipe of the present invention:

[0025] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention:

[0026] Figure 4 The three-dimensional structure diagram of the centrifugal tank of the present invention is as follows:

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the water vapor pipe of the present invention:

[0028] Figure 6 This is a schematic diagram of the planar exhaust of the water vapor pipe of the present invention:

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the rotary heating mechanism of the present invention:

[0030] Figure 8 This is a schematic diagram of the internal structure of a circular plate of the present invention:

[0031] Fig. 9 It is a schematic diagram of air flow of a circular plate of the present invention.

[0032] Figure numerals: 1, air collecting pipe; 10, filter screen; 11, feed pipe; 12, hemispherical body; 13, n-shaped rod; 14, optical axis; 15, tapered rod; 16, square groove; 17, air outlet pipe; 18, centrifugal groove; 19, discharge pipe; 2, rotating shaft 1; 20, conveyor belt; 21, suction blade; 22, rotating shaft 2; 23, fixed plate; 24, special-shaped gear; 25, sawtooth ring; 26, crescent-shaped telescopic rod; 27, connecting rod; 28, circular plate 1; 29, thread line 1; 3, Thread line two; 30, circular plate two; 31, air collecting pipe; 32, bellows; 33, plugging plate; 34, vortex pipe; 35, moisture pipe; 4, water vapor pipe; 40, piston; 41, spring; 42, pull rod; 43, hollow tube one; 44, air outlet groove one; 45, hollow tube two; 46, air outlet groove two; 47, circular pressing plate; 5, air storage groove; 50, annular groove; 51, ventilation groove one; 52, clamping ring; 53, ventilation groove two; 54, one-way groove one; 55, one-way groove two. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Example: Refer to Figures 1 to 3 The present invention provides a technical solution: an online rapid detection system and method for indoor air trace components, comprising: an air collecting pipe 1 and a rotating shaft 2, a filter screen 10 is fixedly installed at one end of the air collecting pipe 1, one end of the rotating shaft 2 penetrates and is rotatably connected to the other end of the air collecting pipe 1, a rotating heating mechanism is provided on the shaft of the rotating shaft 2 located on the inner wall of the air collecting pipe 1, a motor is installed at one end of the rotating shaft 2 away from the air collecting pipe 1, a suction blade 21 is fixedly installed at the other end of the rotating shaft 2, and the outer wall of the air collecting pipe 1 is connected to a water vapor pipe 4;

[0036] When the shaft 2 drives the rotating absorption wind, the filter 10 filters the impurities in the air to prevent foreign matter from entering the air collecting pipe 1. During the rotation of the shaft 2, the rotating heating mechanism is driven to heat the air collecting pipe 1, and finally the water vapor is discharged from the water vapor pipe 4.

[0037] like Figure 3 and Figure 4 As shown, two blocking plates 33 are fixedly installed on the inner wall of the gas collecting pipe 1, a silica gel desiccant is arranged between the two blocking plates 33, a vortex tube 34 is connected between the two blocking plates 33, a plurality of moisture tubes 35 are provided on the outer wall of the vortex tube 34, a centrifugal groove 18 is provided on the inner wall of the gas collecting pipe 1 between the two blocking plates 33, an air outlet pipe 17 is connected to the outer wall of the gas collecting pipe 1, and a detection device is connected to the other end of the air outlet pipe 17.

[0038] When the user needs to detect the indoor air content, he can first ensure that there is enough silica gel desiccant between the two blocking plates 33, and then start the motor to drive the shaft 2 to start rotating, that is, during the rotation of the shaft 2, the rotating heating mechanism is driven to heat the silica gel desiccant, and at the same time, the suction blade 21 is driven by the shaft 2 to perform air suction. While the silica gel desiccant absorbs moisture from the indoor air, the silica gel desiccant is evaporated by the rotating heating mechanism. Finally, the moisture is evaporated and discharged from the water vapor pipe 4. The air without moisture finally enters the trace detection equipment from the outlet pipe 17 for detection, thereby reducing the error of the detection data.

[0039] like Figure 4As shown, the highest point and the lowest point of the centrifugal groove 18 are respectively connected to the feed pipe 11 and the discharge pipe 19, the inner wall of the feed pipe 11 is airtightly rotatably connected to the hemisphere 12, the outer wall of the feed pipe 11 can be clamped with an n-shaped rod 13, a square groove 16 is opened on one side of the n-shaped rod 13, an optical axis 14 is fixedly installed on one side of the hemisphere 12, the outer wall of the optical axis 14 airtightly penetrates and is rotatably connected to the outer wall of the feed pipe 11, a conical rod 15 is fixedly installed on the end of the optical axis 14 away from the feed pipe 11, the outer wall of the conical rod 15 can be slidably connected to the inner wall of the square groove 16, and the structures of the feed pipe 11 and the discharge pipe 19 are the same.

[0040] Through the shape of the centrifugal groove 18, when the user needs to replace the silica gel desiccant, the user can first remove the n-shaped rod 13 on the outer wall of the discharge pipe 19, and then manually rotate the conical rod 15 clockwise ninety degrees to allow the hemisphere 12 to open the inner wall of the feed pipe 11, that is, the silica gel desiccant automatically rolls and accumulates in the discharge pipe 19 through the centrifugal groove 18, and finally the silica gel desiccant rolls out of the discharge pipe 19, then rotate the conical rod 15 counterclockwise to allow the hemisphere 12 to close the inner wall of the discharge pipe 19, and clamp the n-shaped rod 13 to the outer wall of the discharge pipe 19, and then follow the same operation to open the inner wall of the feed pipe 11, and inject new silica gel desiccant from the feed pipe 11 into the inner wall of the centrifugal groove 18 until it is filled, so as to prevent the silica gel desiccant from expiring and causing the air in the gas collecting pipe 1 to remove moisture.

[0041] like Figure 3 , Figure 4 , Figures 7 to 9As shown, the rotary heating mechanism includes a rotating shaft 22 on the outer wall of a rotating shaft 2 which is driven by a conveyor belt 20, a rod body of the rotating shaft 22 penetrates and is rotatably connected with a fixed plate 23, the top of the fixed plate 23 is fixedly mounted on the outer wall of the gas collecting pipe 1, one end of the rotating shaft 22 is fixedly mounted with a special-shaped gear 24, the special-shaped gear 24 is meshed with a sawtooth ring 25, one end of the special-shaped gear 24 is fixedly mounted with a connecting rod 27, the other end of the connecting rod 27 is fixedly mounted with a circular plate 1 28, a side of the circular plate 1 28 away from the connecting rod 27 is fixedly mounted with a thread line 1 29, one side of the circular plate 1 28 is in airtight contact with a thread line 2 3, a circular plate 2 30 is fixedly mounted on the outer wall of the thread line 2 3 away from the circular plate 1 28, the circular plate 2 30, the thread line 2 3, the thread line 1 29 and the circular plate 1 28 constitute an air compression device, the inner wall of the circular plate 1 28 is provided with an air storage tank 5 and an annular groove 50, a plurality of ventilation holes are provided between the air storage tank 5 and the annular groove 50 The inner wall of the annular groove 50 is airtightly slidably connected with a clamping ring 52, and the inner wall of the clamping ring 52 is provided with a ventilation groove 2 53 in a circular array, and the ventilation groove 2 53 can be connected with the ventilation groove 1 51, and one side of the ventilation groove 2 53 is connected with a bellows 32, and the top of the bellows 32 is connected with the inner wall of the gas collecting pipe 1, and the side of the circular plate 2 30 away from the thread line 2 3 is connected with the air collecting pipe 31, and the other end of the air collecting pipe 31 is connected with the inner wall of the gas collecting pipe 1, and the gas collecting pipe 1 is connected with the inner wall of the gas collecting pipe 1. The connection point of the air collecting pipe 31 is located between the filter screen 10 and the blocking plate 33. A crescent-shaped telescopic rod 26 is fixedly installed on the top of the serrated ring 25. The top end of the crescent-shaped telescopic rod 26 is connected to the outer wall of the air collecting pipe 1. The top end of the crescent-shaped telescopic rod 26 is connected to the blocking plate 33 close to the suction blade 21, and the blocking plate 33 close to the suction blade 21 is provided with a one-way groove 1 54 and a one-way groove 2 55. The inner walls of the one-way groove 1 54 and the one-way groove 2 55 are fixedly installed with a one-way valve.

[0042] When the rotating shaft 1 2 is driven to rotate by the motor, the rotating shaft 2 22 is also rotated by the conveyor belt 20 to drive the special-shaped gear 24 to rotate, that is, the sawtooth ring 25 moves in an up and down cycle, and at the same time, the sawtooth ring 25 drives the crescent-shaped telescopic rod 26 to perform air extraction. The existing air pump on the market is used, through the one-way groove 1 54 and the one-way groove 2 55 on one side of the blocking plate 33 close to the suction blade 21, the one-way valve in the one-way groove 2 55 can only allow the hot air near the highest point in the centrifugal groove 18 to enter the one-way groove 2 55, and then the one-way valve in the one-way groove 1 54 can only discharge the gas sucked in the one-way groove 2 55 to the area near the lowest point of the centrifugal groove 18, to avoid the low efficiency of hot air evaporating the silica gel desiccant, and the silica gel desiccant can be evaporated again by re-entering the hot air at a high position in the centrifugal groove 18 into the lowest point position in the centrifugal groove 18;

[0043] Then, the connecting rod 27 and the special-shaped gear 24 cooperate with each other to drive the circular plate 1 28 to rotate centrifugally, and the circular plate 2 30 is fixed. The thread line 2 3, the thread line 1 29, the circular plate 2 30 and the circular plate 1 28 adopt the principle of an air compressor. In order to provide air between the circular plate 2 30 and the circular plate 1 28, the air in the air collecting pipe 31 connected to the air collecting pipe 1 can be used to provide it. The air is continuously compressed between the circular plate 2 30 and the circular plate 1 28, and the temperature of the air rises. Then, it enters the position between the two blocking plates 33 from the connecting rod 27 and the bellows 32, as shown in the attached figure. Figure 8 As shown, in order to prevent the bellows 32 from contacting the connecting rod 27, the hot air at the center of the circular plate 1 28 enters the inner wall of the ventilation groove 2 53 from the air storage tank 5 through the spring 41, and finally flows out from the inner wall of the bellows 32. The circular plate 1 28 is centrifugally rotated, and the connection between the bellows 32 and the ventilation groove 2 53 can be rotated on the inner wall of the annular groove 50 through the clamping ring 52, so that the connection between the ventilation groove 2 53 and the hollow tube 1 43 is always at the highest point of the circular plate 1 28, thereby preventing the bellows 32 and the connecting rod 27 from contacting each other;

[0044] To explain, the connection point between the circular plate 2 30 and the air collecting pipe 31 is located at the end of the thread line 2 3 and the thread line 1 29. The continuously compressed air gathers at the center of the circular plate 1 28 and finally flows out from the bellows 32, which is equivalent to the principle of a vortex air compressor.

[0045] like Figures 4 to 6 As shown, the inner wall of the water vapor pipe 4 is air-tightly slidably connected with a piston 40, there is hydrogen between the piston 40 and the inner top of the water vapor pipe 4, a spring 41 is fixedly installed on the top of the piston 40, and the top of the spring 41 is fixedly installed on the inner top of the water vapor pipe 4, the top of the piston 40 is connected with a hollow tube 1 43, and the inner wall of the hollow tube 1 43 near the top is provided with an air outlet groove 1 44, the top of the water vapor pipe 4 is connected with a hollow tube 2 45, and the inner wall of the hollow tube 2 45 near the top of the water vapor pipe 4 is provided with an air outlet groove 2 46, the top of the piston 40 is fixedly installed with a pull rod 42, the rod body of the pull rod 42 air-tightly penetrates and is slidably connected to the top of the water vapor pipe 4, and the top of the pull rod 42 is fixedly installed with a circular pressing plate 47.

[0046] When there is water vapor on the inner wall of the centrifugal tank 18, the piston 40 is connected to the outer wall of the gas collecting pipe 1 through the water vapor pipe 4 and contacts the high-temperature water vapor, and the volume changes due to the hydrogen induction temperature, that is, the piston 40 moves downward and drives the hollow tube 1 43 to move downward on the inner wall of the hollow tube 2 45 until the circular pressing plate 47 contacts the top of the hollow tube 2 45, and the outlet groove 1 44 and the outlet groove 2 46 are in the same plane, and the water vapor in the water vapor pipe 4 is discharged from the inner wall of the hollow tube 1 43, the outlet groove 1 44 and the outlet groove 2 46 to the outside. When there is no water vapor in the centrifugal tank 18, the piston 40 is driven by the spring 41 to move upward to prevent external moisture from entering the inner wall of the centrifugal tank 18 through the water vapor pipe 4, so that the silica gel desiccant contacts too much moisture and cannot remove the moisture in time, and no manual operation is required;

[0047] It is explained that when the hydrogen temperature rises by 20 degrees Celsius from 0 degrees Celsius and normal pressure, the volume of hydrogen will increase by about 10%. Whenever the piston 40 is exposed to high temperature, the increase in the volume of hydrogen will drive the piston 40 to move toward the gas collecting pipe 1.

[0048] Further, a method for online rapid detection of trace components in indoor air comprises the following steps:

[0049] S1. First remove or install the n-shaped rod 13 on the outer wall of the feed pipe 11, and then ensure that the silica gel desiccant between the two blocking plates 33 is filled with a sufficient amount. If you want to replace the new silica gel desiccant, you only need to remove or install the n-shaped rod 13 on the outer wall of the discharge pipe 19;

[0050] S2, then start the motor, drive the shaft 2 and the suction blade 21 to start rotating to suck air, the indoor air enters the inner wall of the vortex tube 34 from the filter 10, the silica gel desiccant dries the sucked air through the moisture pipe 35, and finally flows out from the outlet pipe 17 into the detection equipment for detection;

[0051] S3. In order to ensure the continuous use of silica gel desiccant, while the silica gel desiccant absorbs moisture from the air, the rotating shaft 2 drives the rotating heating mechanism through the conveyor belt 20 to make the hot air contact with the silica gel desiccant through the bellows 32, so that the moisture absorbed by the silica gel desiccant evaporates and is discharged from the water vapor pipe 4.

[0052] Working principle: When the user needs to test the indoor content, he can first ensure that there is enough silica gel desiccant between the two blocking plates 33, and then start the motor to drive the shaft 2 to start rotating. When the shaft 2 is driven by the motor to rotate, the conveyor belt 20 allows the shaft 22 to rotate and drive the special-shaped gear 24 to rotate, that is, the sawtooth ring 25 moves up and down in a circular motion, and the circular plate 1 28 rotates centrifugally. Through the principle of the air compressor, the air between the circular plate 2 30 and the circular plate 1 28 is continuously compressed, and the temperature of the air rises, and then it enters the position between the two blocking plates 33 from the connecting rod 27 and the bellows 32;

[0053] When the user needs to replace the silica gel desiccant, the user can first remove the n-shaped rod 13 on the outer wall of the discharge tube 19, and then manually rotate the conical rod 15 clockwise 90 degrees to allow the hemisphere 12 to open the inner wall of the feed tube 11, that is, the silica gel desiccant automatically rolls and accumulates in the discharge tube 19 through the centrifugal groove 18, and finally the silica gel desiccant rolls out of the discharge tube 19, then rotate the conical rod 15 counterclockwise to allow the hemisphere 12 to close the inner wall of the discharge tube 19, and clamp the n-shaped rod 13 to the outer wall of the discharge tube 19, and then follow the same operation to open the inner wall of the feed tube 11, and inject new silica gel desiccant from the feed tube 11 into the inner wall of the centrifugal groove 18 until it is filled.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An online rapid detection device for indoor air trace components, characterized in that: include: An air collecting pipe (1) and a rotating shaft (2), wherein a filter screen (10) is fixedly mounted on one end of the air collecting pipe (1), and one end of the rotating shaft (2) penetrates through and is rotatably connected to the other end of the air collecting pipe (1). A rotating heating mechanism is provided on the shaft of the rotating shaft (2) located on the inner wall of the air collecting pipe (1). A motor is mounted on the end of the rotating shaft (2) away from the air collecting pipe (1), and a suction blade (21) is fixedly mounted on the other end of the rotating shaft (2). The outer wall of the air collecting pipe (1) is connected to a water vapor pipe (4); When the rotating shaft (2) drives the rotating absorption wind, the filter (10) filters impurities in the air to prevent foreign matter from entering the air collecting pipe (1), and during the rotation of the rotating shaft (2), the rotating heating mechanism is driven to heat the air collecting pipe (1), and finally water vapor is discharged from the water vapor pipe (4).

2. The online rapid detection device for indoor air trace components according to claim 1 is characterized in that: Two blocking plates (33) are fixedly mounted on the inner wall of the gas collecting pipe (1), a silica gel desiccant is provided between the two blocking plates (33), a vortex tube (34) is connected between the two blocking plates (33), a plurality of moisture tubes (35) are provided on the outer wall of the vortex tube (34), a centrifugal groove (18) is provided on the inner wall of the gas collecting pipe (1) between the two blocking plates (33), an air outlet pipe (17) is connected to the outer wall of the gas collecting pipe (1), and the other end of the air outlet pipe (17) is connected to a detection device.

3. The online rapid detection device for indoor air trace components according to claim 1 is characterized in that: The highest point and the lowest point of the centrifugal tank (18) are respectively connected to a feed pipe (11) and a discharge pipe (19); the inner wall of the feed pipe (11) is airtightly rotatably connected to a hemispherical body (12); the outer wall of the feed pipe (11) can be clamped with an n-shaped rod (13); and a square groove (16) is provided on one side of the n-shaped rod (13).

4. The online rapid detection device for indoor air trace components according to claim 3 is characterized in that: An optical axis (14) is fixedly mounted on one side of the hemispherical body (12); the outer wall of the optical axis (14) airtightly penetrates and is rotatably connected to the outer wall of the feed pipe (11); a conical rod (15) is fixedly mounted on one end of the optical axis (14) away from the feed pipe (11); the outer wall of the conical rod (15) is slidably connected to the inner wall of the square groove (16); the feed pipe (11) and the discharge pipe (19) have the same structure.

5. The online rapid detection device for indoor air trace components according to claim 1 is characterized in that: The rotary heating mechanism comprises a rotating shaft 1 (2) having a rotating shaft 2 (22) which is driven by a conveyor belt (20) on its outer wall, the shaft of the rotating shaft 2 (22) passing through and rotatably connected to a fixing plate (23), the top of the fixing plate (23) being fixedly mounted on the outer wall of the gas collecting pipe (1), one end of the rotating shaft 2 (22) being fixedly mounted with a special-shaped gear (24), the special-shaped gear (24) being meshed with a sawtooth ring (25), one end of the special-shaped gear (24) being fixedly mounted with a connecting rod (27), the other end of the connecting rod (27) being fixedly mounted with a circular plate 1 (28), the side of the circular plate 1 (28) away from the connecting rod (27) being fixedly mounted with a thread line 1 (29), one side of the circular plate 1 (28) being in airtight contact with the thread line 2 (3), the thread line 2 (3 ) A circular plate 2 (30) is fixedly installed on the outer wall away from the circular plate 1 (28), and the circular plate 2 (30), the thread line 2 (3), the thread line 1 (29) and the circular plate 1 (28) constitute an air compression device. The inner wall of the circular plate 1 (28) is provided with an air storage groove (5) and an annular groove (50), and a plurality of ventilation grooves 1 (51) are provided between the air storage groove (5) and the annular groove (50). The inner wall of the annular groove (50) is airtightly slidably connected with a clamping ring (52), and the inner wall of the clamping ring (52) is provided with ventilation grooves 2 (53) in a circular array, and the ventilation grooves 2 (53) can be connected to the ventilation grooves 1 (51), and one side of the ventilation grooves 2 (53) is connected to a bellows (32), and the top end of the bellows (32) is connected to the inner wall of the air collecting pipe (1); The side of the circular plate 2 (30) away from the thread line 2 (3) is connected to an air collecting pipe (31), and the other end of the air collecting pipe (31) is connected to the inner wall of the air collecting pipe (1). The connection point between the air collecting pipe (1) and the air collecting pipe (31) is located between the filter screen (10) and the blocking plate (33).

6. The online rapid detection device for indoor air trace components according to claim 5 is characterized in that: A crescent-shaped telescopic rod (26) is fixedly mounted on the top of the sawtooth ring (25); the top end of the crescent-shaped telescopic rod (26) is connected to the outer wall of the air collecting pipe (1); the top end of the crescent-shaped telescopic rod (26) is connected to a blocking plate (33) close to the air suction blade (21); and the blocking plate (33) close to the air suction blade (21) is provided with a one-way groove 1 (54) and a one-way groove 2 (55); and one-way valves are fixedly mounted on the inner walls of the one-way groove 1 (54) and the one-way groove 2 (55).

7. The online rapid detection device for indoor air trace components according to claim 1 is characterized in that: The inner wall of the water vapor pipe (4) is airtightly and slidably connected to a piston (40), and hydrogen is present between the piston (40) and the inner top of the water vapor pipe (4). A spring (41) is fixedly installed on the top of the piston (40), and the top end of the spring (41) is fixedly installed on the inner top of the water vapor pipe (4). The top of the piston (40) is connected to a hollow tube 1 (43), and an air outlet groove 1 (44) is provided on the inner wall of the hollow tube 1 (43) near the top. The top of the water vapor pipe (4) is connected to a hollow tube 2 (45), and an air outlet groove 2 (46) is provided on the inner wall of the hollow tube 2 (45) near the top of the water vapor pipe (4). A pull rod (42) is fixedly installed on the top of the piston (40), and the rod body of the pull rod (42) airtightly penetrates and is slidably connected to the top of the water vapor pipe (4), and a circular pressing plate (47) is fixedly installed on the top of the pull rod (42).

8. The method for online rapid detection of indoor air trace components according to claim 1, characterized in that , including the following steps: S1. First remove or install the n-shaped rod (13) on the outer wall of the feed pipe (11), and then ensure that the silica gel desiccant between the two blocking plates (33) is filled with a sufficient amount. If a new silica gel desiccant is to be replaced, only the n-shaped rod (13) on the outer wall of the discharge pipe (19) needs to be removed or installed; S2, then start the motor to drive the rotating shaft 1 (2) and the suction blade (21) to start rotating to suck air, and the indoor air enters the inner wall of the vortex tube (34) through the filter (10), and the silica gel desiccant dries the sucked air through the moisture pipe (35), and finally flows out from the outlet pipe (17) to enter the detection equipment for detection; S3. In order to ensure the continuous use of the silica gel desiccant, while the silica gel desiccant absorbs moisture from the air, the rotating shaft (2) drives the rotating heating mechanism through the conveyor belt (20) to make the hot air contact with the silica gel desiccant through the bellows (32), so that the moisture absorbed by the silica gel desiccant evaporates and is discharged from the water vapor pipe (4).

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