Self-adaptive floating dust fall vehicle

Abstract

The invention discloses a self-adaptive floating dust fall vehicle which comprises a movable transport vehicle, a water tank is arranged on the movable transport vehicle, a plurality of ultrasonic nebulizers are arranged in the water tank, each ultrasonic nebulizer comprises an atomization piece, water in the water tank can immerse the atomization pieces, the atomization pieces vibrate to enable the water to be atomized and gathered on the water surface and above the water surface, and the atomization pieces are arranged on the water tank. The distance between the top surface of the atomizing sheet and the water surface is 1-6 cm; a mist outlet is formed in the top or the upper portion of the water tank, and an exhaust fan or an induced draft fan is arranged on the mist outlet. The atomizing piece of the self-adaptive floating dust falling vehicle can be self-adaptively adjusted according to the change of the water level, so that the atomizing piece is always kept in an efficient atomizing state, and the self-adaptive floating dust falling vehicle is high in atomizing efficiency, good in dust falling and haze reducing effect, simple in structure and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of air purification and dust removal, and in particular to an adaptive floating dust suppression vehicle. Background Art

[0002] At present, there are many kinds of vehicles with dust reduction functions, among which sprinklers and fog cannons are the most widely used. Fog cannons have better water-saving effect and dust reduction effect than sprinklers. However, the particle size of the water mist produced by fog cannons is mostly 100-600 microns, and the dust adsorption effect is poor. At least 50% of the water droplets cannot be effectively used and directly fall on the ground, causing the ground to be slippery. According to aerodynamic theory, when the dust-laden airflow bypasses the droplets, the dust particles will deviate from the circling gas due to inertia and collide with the droplets to be captured. The probability of being captured is related to the diameter of the droplets. When the diameter of the droplets is similar to that of the dust particles, the droplets are more likely to capture dust. Studies have shown that the dust capture effect is best when the ratio of the droplet diameter to the dust particle diameter is within 1.25-5. However, since the particle size of the water mist produced by the fog cannon is mostly 100-600 microns, it can only capture PM20 or even larger particles. The capture and dust reduction effect for PM2.5-PM10 particles that can be inhaled by the human body is not ideal.

[0003] When ultrasonic waves propagate in liquids, under the combined effects of mechanical effects, thermal effects, and acoustic cavitation effects, a large number of pores will appear inside the liquid, and at the same time, the intermolecular forces will be destroyed, causing the liquid to disperse and achieving water atomization. Ultrasonic atomization of water can produce 0.5-20 micron water mist, which is much more effective than fog cannons in capturing and reducing dust for PM2.5-PM10 particles that can be inhaled into the human body. Part of the fine mist droplets below 20 microns will evaporate rapidly in the air, causing the relative humidity of the air in the locally enclosed dust-catching space to quickly become saturated. The saturated water vapor condenses with dust particles as nuclei, forming "rain" that falls down, which is particularly effective in suppressing submicron ultra-fine dust. Unlike air purifiers, dust suppression vehicles need to move constantly, and they face the open atmosphere. Therefore, directly applying air purifiers to the atmosphere has extremely limited dust reduction effects and is extremely costly. At the same time, ultrasonic atomization will consume a large amount of water and cause the water level to drop. The distance between the atomizer and the water surface (i.e., the water level) directly affects the atomization effect, thereby affecting the air purification effect. Traditional air purifiers only roughly add excessive water, and the atomizer stops working when it is higher than the water level. Therefore, its actual purification effect needs further study. Summary of the invention

[0004] The purpose of the present invention is to provide an adaptive floating dust suppression vehicle, the atomizing sheet of which can be adaptively adjusted according to the change of water level, so that the atomizing sheet always maintains a high-efficiency atomization state, has high atomization efficiency, good dust and haze reduction effects, simple structure and low cost.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An adaptive floating dust suppression vehicle comprises a mobile transport vehicle, a water tank is arranged on the mobile transport vehicle, a plurality of ultrasonic atomizers are arranged in the water tank, the ultrasonic atomizer comprises an atomizing sheet, the water in the water tank can immerse the atomizing sheet, the atomizing sheet vibrates to cause the water to be atomized and gathered on the water surface and above the water surface, the distance between the top surface of the atomizing sheet and the water surface is 1cm-6cm; a mist outlet is opened on the top or upper part of the water tank, and an exhaust fan or an induced draft fan is arranged on the mist outlet.

[0007] Preferably, a hollow floating adjustment chamber is further provided in the water tank, and the floating adjustment chamber is floated or suspended in the water of the water tank. The ultrasonic atomizer is mounted on the floating adjustment chamber, and the floating adjustment chamber is filled with liquid, foam or solid filler. By adjusting the liquid content, foam content or solid filler in the floating adjustment chamber, the distance between the top surface of the atomizer sheet and the water surface is adjusted, and the distance between the top surface of the atomizer sheet and the water surface is 2cm-5cm.

[0008] Preferably, a water injection port or a filling port is provided on the floating adjustment chamber, and each ultrasonic atomizer is mounted on at least two floating adjustment chambers; the distance between the top surface of the atomizing sheet and the water surface is 3cm-4.5cm.

[0009] Preferably, the exhaust fan or induced draft fan is arranged on the cockpit side of the water tank long-distance moving transport vehicle, and a hair dryer is arranged on the cockpit side of the water tank near-moving transport vehicle, and the hair dryer blows the water mist gathered on the water surface and above the water surface to the cockpit side of the water tank long-distance moving transport vehicle.

[0010] Preferably, a guide slope is provided on the mist outlet, and the water mist is guided by the guide slope and released from the mist outlet to the outside atmosphere.

[0011] Preferably, a vent is provided at the top or upper portion of the water tank, the exhaust fan or induced draft fan and the hair dryer are all DC brushless fans, and the hair dryer is a cross-flow fan, which extends along the left and right directions of the water tank.

[0012] Preferably, a plurality of transverse partitions are provided in the water tank, and the floating adjustment chamber can be placed exactly between two adjacent transverse partitions.

[0013] Preferably, a plurality of longitudinal partitions are provided in the water tank, and the transverse partitions and the longitudinal partitions are arranged crosswise, so that the floating adjustment chamber can be placed just between two adjacent transverse partitions and the longitudinal partitions.

[0014] Preferably, it also includes a filtering device, the water tank is connected to the filtering device, a liquid level sensor is provided on the floating adjusting chamber, a recess is provided on the floating adjusting chamber, an ultrasonic atomizer is mounted on the recess of the floating adjusting chamber, and the cross-section of the floating adjusting chamber is basically rectangular, semicircular, semi-elliptical or fan-shaped.

[0015] Further preferably, the filtering device is a reverse osmosis pure water device.

[0016] In the above technical scheme, by arranging multiple rows of ultrasonic atomizers in the water tank and immersing the ultrasonic atomizers in the water tank, the atomizer sheet vibrates to atomize the water to form a large amount of fine mist below 20 microns and gather on the water surface and above the water surface; by mounting the ultrasonic atomizer on the floating adjustment chamber, adjusting the liquid content or foam content or solid filler in the floating adjustment chamber, and adjusting the distance between the top surface of the atomizer sheet and the water surface, the atomizer sheet together with the buoyancy of the floating adjustment chamber and its own gravity reach a specific dynamic balance, so that the atomizer sheet can be adaptively adjusted according to the water level change, the distance between the top surface of the atomizer sheet and the water surface is always maintained between 3cm-4.5cm, the atomizer sheet is always suspended in the water and continuously and efficiently produces fine mist, and the floating adjustment chamber adjusts the atomizer sheet position. The structure is simple and the cost is low. By adjusting the vibration frequency of the ultrasonic atomizer, the water mist particle size is adjusted to produce droplets that are easier to capture dust according to the air quality, further improving the dust reduction, haze reduction, and purification effects, while saving more water. The wind generated by the hair dryer accelerates the water mist gathered on and above the water surface to the cockpit side of the water tank remote transport vehicle, and then guides, gathers and releases it to the outside atmosphere through the guide slope to ensure the concentration of the water mist discharged into the air, avoid the water mist concentration being too low to cause a large amount of evaporation and loss in a short period of time, and achieve rapid saturation of local air relative humidity. The saturated water vapor condenses with dust particles as the nucleus to achieve the dust reduction effect. By setting horizontal and vertical intersecting transverse partitions and longitudinal partitions, the floating adjustment chamber can be placed exactly between two adjacent transverse partitions and longitudinal partitions, forming a limit for the floating adjustment chamber to avoid collision and damage of two adjacent ultrasonic atomizers and overturning of the floating adjustment chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the adaptive floating dust suppression vehicle (section view at the water tank);

[0018] Figure 2 This is a schematic diagram of the top view structure of the adaptive floating dust suppression vehicle (partial section view at the water tank);

[0019] Figure 3 It is a three-dimensional schematic diagram of the first implementation mode of the floating adjustment chamber (when the ultrasonic atomizer is mounted in a floating adjustment chamber);

[0020] Figure 4This is a schematic diagram of the main structure of the first implementation mode of the floating adjustment chamber (when the ultrasonic atomizer is mounted in a floating adjustment chamber);

[0021] Figure 5 This is a schematic diagram of the top view of the second implementation mode of the floating adjustment chamber (when the ultrasonic atomizer is mounted in two floating adjustment chambers);

[0022] Figure 6 This is a schematic diagram of the main structure of the second implementation mode of the floating adjustment chamber (when the ultrasonic atomizer is mounted on two floating adjustment chambers). DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 6As shown, the adaptive floating dust suppression vehicle includes a mobile transport vehicle 1, a water tank 2 is provided on the mobile transport vehicle 1, and a plurality of ultrasonic atomizers 30 arranged in a rectangular array are provided in the water tank 2, each ultrasonic atomizer 30 includes at least one atomizing sheet 3, and the water in the water tank 2 can immerse the atomizing sheet 3, so that the atomizing sheet 3 vibrates to cause the water to be atomized and gathered on the water surface and above the water surface; a mist outlet 4 is opened on the top or upper part of the water tank 2, and an exhaust fan 5 or an induced draft fan is provided on the mist outlet 4, so that the fine mist gathered on the water surface and above the water surface is accelerated to be released to the outside atmosphere through the mist outlet 4. The distance between the top surface of the atomizer sheet and the water surface is 1cm-6cm, preferably 2cm-5cm. This is because the oscillation energy generated by the atomizer sheet will propagate in the water in a direction perpendicular to the surface of the atomizer sheet. Under appropriate water depth conditions, the water surface on the energy propagation axis will concentrate on forming a water column, and a large number of tiny tension waves will occur at the front end of the water column, which will greatly reduce the surface tension of the raised water surface. The water surface is split into many tiny areas by the wavelength of the surface tension wave, and each area becomes a microparticle independently as if it is not bonded to each other, and is emitted in the air to form a fog effect. After a large number of tests, it is found that when the distance between the top surface of the atomizer sheet and the water surface is 3cm-4.5cm, the atomizer sheet can maintain efficient atomization and form more fine fog. In this embodiment, a hollow floating adjustment chamber 6 is further provided in the water tank 2. The floating adjustment chamber is floated or suspended in the water of the water tank. The ultrasonic atomizer 30 is mounted on the floating adjustment chamber 6 to realize that the atomizer sheet is suspended in the water. The floating adjustment chamber 6 is filled with liquid, foam or solid filler. By adjusting the liquid content, foam content or solid filler in the floating adjustment chamber, the distance between the top surface of the atomizer sheet and the water surface is adjusted, so that the buoyancy of the atomizer sheet together with the floating adjustment chamber and its own gravity reach a specific dynamic balance, so that the atomizer sheet can be adaptively adjusted according to the water level change, and the distance between the top surface of the atomizer sheet and the water surface is always maintained between 3cm-4.5cm. The atomizer sheet is always suspended in the water and continuously and efficiently produces fine mist. The floating adjustment chamber has a simple structure and low cost for adjusting the position of the atomizer sheet. Furthermore, a water injection port 61 or a filling port is provided on the side wall or the top surface of the floating adjustment chamber 6, and each ultrasonic atomizer 30 is evenly mounted on at least two floating adjustment chambers 6. A recessed portion 62 is provided on the floating adjustment chamber, and the ultrasonic atomizer 30 is fixed and mounted on the recessed portion 62 of the floating adjustment chamber, and the cross-section of the floating adjustment chamber is basically rectangular, semicircular, semi-elliptical or fan-shaped, so the floating adjustment chamber and the ultrasonic atomizer 30 are not easy to overturn.

[0025] In a preferred embodiment, the exhaust fan 5 or the induced draft fan is arranged on the side of the cockpit 11 of the water tank 2 far from the mobile transport vehicle 1, and the hair dryer 7 is arranged on the side of the cockpit of the water tank 2 near the mobile transport vehicle. The hair dryer 7 can blow the water mist gathered on the water surface and above the water surface to the side of the cockpit of the water tank far from the mobile transport vehicle, which plays a preliminary acceleration role on the water mist and ensures that the water mist in the water tank can be released more and faster to the outside atmosphere. Further, a guide slope 41 is arranged on the mist outlet 4, so that the water mist is guided, gathered and concentrated by the guide slope 41 and released to the outside atmosphere through the secondary acceleration of the exhaust fan, ensuring the concentration, speed and purification height of the water mist discharged into the air, avoiding the water mist concentration from being too low to cause a large amount of evaporation and loss in a short time, and realizing the rapid saturation of the local air relative humidity. The saturated water vapor condenses with dust particles as the core to achieve the dust reduction effect. A vent is opened on the top or upper part of the water tank to ensure the pressure difference between the inside and outside of the water tank. The mist outlet can be either rectangular or circular. The above-mentioned exhaust fan or induced draft fan and hair dryer are all DC brushless fans with high wind pressure, high efficiency and long service life. The hair dryer 7 can be provided with a plurality of transverse arrays arranged inside the water tank, or a cross-flow fan can be directly used, which extends along the left and right directions of the water tank to ensure that the water mist in the water tank can be blown to a greater extent to the cockpit side of the water tank-moving transport vehicle.

[0026] In a preferred embodiment, a plurality of transverse partitions 81 are provided in the water tank 2, and the floating adjustment chamber can be placed exactly between two adjacent transverse partitions 81. Furthermore, a plurality of longitudinal partitions 82 are provided in the water tank, and the transverse partitions and the longitudinal partitions are arranged crosswise, and the floating adjustment chamber can be placed exactly between two adjacent transverse partitions and the longitudinal partitions, so as to limit the floating adjustment chamber 6 to prevent collision and damage of two adjacent ultrasonic atomizers and overturning of the floating adjustment chamber.

[0027] In a preferred embodiment, the self-adaptive floating dust suppression vehicle further includes a filter device 9, and the water tank is connected to the filter device 9. The filter device is preferably a reverse osmosis pure water device. The reverse osmosis pure water device is a prior art that can effectively remove impurities such as solid dissolved matter, organic matter, colloids, microorganisms and bacteria in water, and has a wide range of applications, a high degree of initiative, a small footprint, low energy consumption, and good water quality. A liquid level sensor 63 can be further provided on the adjustment floating adjustment chamber 6, and the liquid level sensor 63 is connected to the reverse osmosis pure water device through a control system. In this way, when the water level in the water tank is low and the floating adjustment chamber 6 cannot be suspended in the water, the liquid level sensor 63 is exposed or detects that the water level is low, and the reverse osmosis pure water device supplies water to the water tank to ensure that the atomizer continues to atomize. Furthermore, the control system can adjust the vibration frequency of the ultrasonic atomizer atomizer, thereby adjusting the water mist particle size to produce droplets that are easier to capture dust according to the air quality, further improving the dust reduction, haze reduction, and purification effects, while saving more water.

[0028] This embodiment is only an illustration of the concept and implementation of the present invention, and does not limit it. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. An adaptive floating dust suppression vehicle, comprising a mobile transport vehicle, characterized in that: A water tank is provided on the mobile transport vehicle. A plurality of ultrasonic atomizers are provided in the water tank. The ultrasonic atomizers include atomizing sheets. The water in the water tank can immerse the atomizing sheets. The atomizing sheets vibrate to atomize the water and gather on the water surface and above the water surface. The distance between the top surface of the atomizing sheet and the water surface is 1 cm-6 cm. A mist outlet is provided on the top or upper part of the water tank, and an exhaust fan or an induced draft fan is provided on the mist outlet.

2. The adaptive floating dust suppression vehicle according to claim 1 is characterized in that: A hollow floating adjustment chamber is also provided in the water tank. The floating adjustment chamber is floated or suspended in the water of the water tank. The ultrasonic atomizer is mounted on the floating adjustment chamber. Liquid, foam or solid filler is filled in the floating adjustment chamber. The distance between the top surface of the atomizer sheet and the water surface is adjusted by adjusting the liquid content, foam content or solid filler in the floating adjustment chamber. The distance between the top surface of the atomizer sheet and the water surface is 2cm-5cm.

3. The adaptive floating dust suppression vehicle according to claim 2 is characterized in that: A water injection port or a filling port is provided on the floating adjustment chamber, and each ultrasonic atomizer is mounted on at least two floating adjustment chambers; the distance between the top surface of the atomizing sheet and the water surface is 3cm-4.5cm.

4. The adaptive floating dust suppression vehicle according to claim 1 or 2, characterized in that: The exhaust fan or induced draft fan is arranged on the cockpit side of the water tank long-distance moving transport vehicle, and a hair dryer is arranged on the cockpit side of the water tank near-moving transport vehicle. The hair dryer blows the water mist gathered on the water surface and above the water surface to the cockpit side of the water tank long-distance moving transport vehicle.

5. The adaptive floating dust suppression vehicle according to claim 1 or 2, characterized in that: A guide slope is arranged on the mist outlet, and the water mist is guided by the guide slope and released from the mist outlet to the outside atmosphere.

6. The adaptive floating dust suppression vehicle according to claim 4, characterized in that: A vent is provided on the top or upper portion of the water tank. The exhaust fan or induced draft fan and the hair dryer are all DC brushless fans. The hair dryer is a cross-flow fan, which extends along the left and right directions of the water tank.

7. The adaptive floating dust suppression vehicle according to any one of claims 1 to 3, characterized in that: A plurality of transverse partitions are arranged in the water tank, and the floating adjustment chamber can be placed just between two adjacent transverse partitions.

8. The adaptive floating dust suppression vehicle according to claim 7, characterized in that: A plurality of longitudinal partitions are also arranged in the water tank. The transverse partitions and the longitudinal partitions are arranged crosswise, and the floating adjustment chamber can be placed just between two adjacent transverse partitions and the longitudinal partition.

9. The adaptive floating dust suppression vehicle according to claim 3, characterized in that: It also includes a filtering device, the water tank is connected to the filtering device, a liquid level sensor is provided on the floating adjusting chamber, a recess is provided on the floating adjusting chamber, an ultrasonic atomizer is mounted on the recess of the floating adjusting chamber, and the cross-section of the floating adjusting chamber is basically rectangular, semicircular, semi-elliptical or fan-shaped.

10. The adaptive floating dust suppression vehicle according to claim 9, characterized in that: The filtering device is a reverse osmosis pure water device.

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