CN209841620U - Construction site raise dust monitoring system - Google Patents

Abstract

The utility model discloses a construction site raise dust monitoring system, including dust suppression equipment and detecting element, dust suppression equipment includes base and the vertical main shaft that sets up, is equipped with motor, water pump and central controller in the base, is connected with watering unit and detecting element on the main shaft, and the motor can make watering unit and detecting element use the main shaft as the axle center rotation, and the water pump can make watering unit spray water; the detection unit comprises an infrared receiver and an infrared transmitter which are oppositely arranged, a dust collection cavity which horizontally penetrates through is arranged between the infrared receiver and the infrared transmitter, and the ventilation area of an air inlet of the dust collection cavity is larger than that of an air outlet. The utility model discloses can real-time supervision, realize automatic watering through central controller, effectively reduce the raise dust index of job site.

Description

Construction site raise dust monitoring system

Technical Field

The utility model relates to an environmental protection engineering technical field, concretely relates to construction site raise dust monitoring system.

Background

The influence range of particulate pollution on the air quality of cities in China is wide, and the particulate pollution is the primary factor of air pollution of most cities. The pollution of particles endangers the environment and human health and becomes a problem of world pollution, and dust is a main factor causing urban particle pollution. As the industrialization degree of China is deepened, the problem of dust pollution is more serious, and the problem of dust pollution not only causes a large amount of resource loss, but also pollutes the surrounding environment and influences the normal production and life of people. Dust emission at construction sites is an important source of inhalable particulate pollution in urban areas.

Green construction becomes one of the key points of construction enterprises for construction site management at present, and dust emission control at a construction site is the central importance of green construction. Good monitoring and control methods are necessary to control dust emission. There are many methods for controlling dust emission in construction sites, such as increasing hardening area and spraying water. The method for monitoring the fugitive dust is few, and only professional instruments such as model 5030 for measuring PM2.5 or fh 62c-14 for measuring PM10 are used for monitoring. However, these professional devices are not suitable for construction sites, are expensive, lack real-time performance and linkage, cannot be monitored for a long time, and cannot be used in combination with dust suppression devices such as spraying devices.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a construction site raise dust monitoring system, real-time supervision realizes automatic watering through central controller, effectively reduces the raise dust index of job site.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the dust suppression device comprises a base and a vertically arranged spindle, wherein a motor, a water pump and a central controller are arranged in the base, and the central controller can receive signals of the monitoring unit and send signals to control the motor and the water pump to work; the main shaft is connected with a sprinkling unit and a monitoring unit, the motor can enable the sprinkling unit and the monitoring unit to rotate by taking the main shaft as an axis, and the water pump can enable the sprinkling unit to spray water; the monitoring unit comprises an infrared receiver and an infrared transmitter which are oppositely arranged, a horizontally penetrating dust collecting cavity is arranged between the infrared receiver and the infrared transmitter, and the ventilation area of an air inlet of the dust collecting cavity is larger than that of an air outlet; the sprinkling unit comprises a second sprinkling rod and a first sprinkling rod, the second sprinkling rod is horizontally fixed on one side of the upper end of the main shaft, and a plurality of second nozzles for spraying water downwards are arranged on the second sprinkling rod; the lower end of the main shaft is sleeved with a chuck taking the main shaft as an axis, a first sprinkling rod is horizontally fixed on one side of the chuck, and a plurality of first nozzles for spraying water upwards are arranged on the first sprinkling rod; an auxiliary disk-shaped gear taking the main shaft as an axis is fixed at the bottom of the chuck, a main disk-shaped gear opposite to the auxiliary disk-shaped gear is connected to the main shaft in a key mode, a driven wheel is connected between the main disk-shaped gear and the auxiliary disk-shaped gear in a meshing mode, a positioning plate fixed on the base is arranged on one side of the driven wheel, a rotatable impeller shaft is horizontally arranged on the positioning plate, and the driven wheel is in key connection with the impeller shaft; the motor fixed in the base drives the main shaft to rotate, so that the first sprinkling rod and the second sprinkling rod rotate around the main shaft in the reverse direction.

The following steps are adopted during working:

the method comprises the following steps: fixing the dust suppression equipment in a construction area, connecting the dust suppression equipment with a power supply, and connecting a water pump in the dust suppression equipment with an external water source; because the occupied area of the dust suppression equipment is small, a plurality of dust suppression equipment can be arranged at intervals in a construction area according to the sprinkling area of the dust suppression equipment, and the dust suppression efficiency is improved.

Step two: the power supply is connected, so that a central controller in the dust suppression equipment controls the motor and the water pump to work through the feedback of the monitoring unit; the dust suppression equipment comprises a base and a vertically arranged main shaft, wherein the main shaft is connected with a sprinkling unit and a monitoring unit, the motor can enable the sprinkling unit and the monitoring unit to rotate by taking the main shaft as an axis, and the water pump can enable the sprinkling unit to spray water; when the sprinkling unit rotates, water moves outwards under the action of centrifugal force, so that the dust suppression area can be increased.

Step three: the monitoring unit comprises an infrared receiver and an infrared transmitter which are oppositely arranged, a horizontally penetrating dust collecting cavity is arranged between the infrared receiver and the infrared transmitter, and the ventilation area of an air inlet of the dust collecting cavity is larger than that of an air outlet; the infrared receiver judges whether a signal sent by the infrared transmitter is received or not at intervals of t; when the raised dust density is higher, the raised dust can be diffused in the dust collection cavity to interfere the signal received by the infrared receiver. The raise dust density of monitoring unit monitoring can only judge whether it exceeds a rough scope, though can't monitor out accurate numerical value, but can satisfy the use in construction site.

Step four: if the infrared receiver judges that the signal is received, the raised dust density in the construction area does not exceed a critical point, the raised dust density is fed back to the central controller, the central controller controls the motor to work, the monitoring unit rotates for n circles by taking the main shaft as an axis, and the working time of the motor is not more than t; when the monitoring unit rotates, air flows from the air inlet to the air outlet of the dust collection cavity; infrared receiver can receive the signal and have two kinds of probably, one kind is that regional raise dust density does not exceed the critical point, another kind is that monitoring unit position just is in the less department of raise dust, so make monitoring unit rotatory, make near monitoring unit's raise dust density more even under the effect of wind power, and collect the raise dust through the dust collection chamber initiative, because the air intake is greater than the air outlet, the part raise dust can be stayed in the dust collection intracavity under the great condition of raise dust density, then can directly leave the dust collection chamber through the air outlet under the less condition of raise dust density, make the monitoring more accurate.

Step five: if the infrared receiver judges that the signal is not received, the raised dust density in the construction area exceeds a critical point, and the raised dust density is fed back to the central controller, the central controller controls the motor and the water pump to work, the working time is not more than t, and the sprinkling unit sprays water and suppresses dust while rotating; the monitoring unit rotates together, and air flows to the air inlet from the air outlet of the dust collection cavity. Because the air outlet is smaller than the air inlet, the raised dust in the dust collecting cavity can be blown out conveniently by air, so that the monitoring unit can be prepared for next monitoring, and the infrared receiver is prevented from being in a state that the raised dust accumulated for a long time can not receive signals all the time. The length of time of motor and water pump work is not more than the interval length of monitoring unit monitoring raise dust density, makes watering unit have certain time to make moist raise dust natural precipitation after work, then monitors once more, and is more accurate.

As an improvement, t is 10-20 minutes, and n is 5-10 circles.

The first sprinkling rod and the second sprinkling rod are matched with each other at the upper end and the lower end for sprinkling water, so that the dust suppression area and the dust suppression efficiency are improved; because the first sprinkling rod and the second sprinkling rod rotate reversely and the first sprinkling rod sprays water upwards, wet raised dust cannot be accumulated on the first sprinkling rod below after the second sprinkling rod above sprays water; when the first sprinkling rod and the second sprinkling rod are staggered, the two ends spray water oppositely, so that the dust suppression effect is increased; the locating plate can also play a role in supporting the first sprinkling rod.

As an improvement, the monitoring unit is fixed on one side of the upper end of the main shaft opposite to the second sprinkling rod. The monitoring unit is installed in the upper end, can not receive the interference of first watering pole and the watering of second watering pole, avoids overweight steam to make the raise dust bond at the collection dirt intracavity, can also adjust the focus.

As an improvement, a water inlet groove surrounding the main shaft is arranged in the base, the water pump can press an external water source to the water inlet groove, a main water pipe is vertically arranged in the main shaft, the bottom of the main water pipe is horizontally connected with a water inlet pipe leading to the water inlet groove, the water inlet pipe is always communicated with the water inlet groove when the main shaft rotates, and the upper end of the main water pipe is horizontally connected with a second sprinkling pipe leading to a second nozzle; the chuck is internally provided with a water outlet groove surrounding the main shaft, one side of the main water pipe is horizontally connected with a water outlet pipe leading to the water outlet groove, the water outlet pipe is always communicated with the water outlet groove when the main shaft rotates, and one side of the water outlet groove is horizontally connected with a first sprinkling pipe leading to a first nozzle. The water inlet groove and the water outlet groove are arranged, so that the main shaft can be always communicated without twisting the water pipe when rotating, and the service life is prolonged.

As an improvement, a baffle plate which is connected in the chuck in a sliding manner is arranged between the water outlet groove and the first sprinkling pipe, an annular groove which is matched with the positioning plate is arranged at the bottom end of the chuck, and the positioning plate slides in the annular groove when the first sprinkling rod rotates; the baffle is provided with a throttling hole matched with the first sprinkling pipe, and the hemispherical end at the bottom of the baffle can move into the annular groove under the action of gravity; when first watering pole rotated to the locating plate direction, the locating plate promoted the baffle rebound, and orifice and first watering pipe dislocation, the baffle made the pipeline sectional area of first watering pipe reduce, increase the rivers velocity of flow that leads to first nozzle. Because first watering pipe sets up in second watering pipe below and first nozzle upwards sprays water, moist raise dust can cover on first nozzle to cause the jam, lead to first nozzle's rivers velocity of flow through the locating plate increase, can be before excessive jam periodic mediation first nozzle.

As an improvement, when the dust suppression device is fixed, the base is fixedly connected with the ground, and the positioning plate on the base is positioned on the side with the largest construction action in a construction area. Because the velocity of flow of the rivers that locating plate position department accesss to first nozzle is great, can restrain the raise dust more efficiently, so set up at the biggest one side that leads to the raise dust of construction action.

As an improvement, the impeller shaft is also connected with an impeller in a key mode, and the impeller can drive the driven wheel to rotate under the action of wind power. The monitoring unit is driven to rotate through the impeller under the action of wind power, raised dust in an area can be monitored more accurately, and air circulation can be enhanced when the motor works.

The utility model has the advantages that: the system is monitored in real time, automatic watering is realized through a central controller, and the dust raising index of a construction site is effectively reduced; the structure is simple, the cost of the monitoring unit is low, and the monitoring unit is convenient to popularize; the density can be monitored to different raise dusts through adjusting the light intensity of the infrared emitter.

Drawings

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a cross-sectional view of the dust suppression apparatus of the present invention;

FIG. 3 is a partial enlarged view of A of the present invention;

FIG. 4 is a cross-sectional view taken in the direction B-B of FIG. 2;

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

reference numerals: 1. a base; 11. a motor; 12. a water pump; 13. a water inlet groove; 14. positioning a plate; 15. a driven wheel; 2. a main shaft; 21. a main water pipe; 22. a water inlet pipe; 23. a water outlet pipe; 24. a second sprinkler pipe; 25. a main disk gear; 3. a first watering bar; an auxiliary disk gear; 32. a water outlet groove; 33. a first sprinkler pipe; 34. a first nozzle; 35. an annular groove; 36. a baffle plate; 37. an orifice; 38. a chuck; 4. a second watering bar; 41. a second nozzle; 5. a monitoring unit; 51. a dust collection chamber; 52. an air outlet; 53. an infrared receiver; 54. an infrared emitter; 55. an air inlet; 6. an impeller; 61. an impeller shaft.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The utility model discloses take following step:

the method comprises the following steps: fixing the dust suppression equipment in a construction area, connecting the dust suppression equipment with a power supply, and connecting a water pump 12 in the dust suppression equipment with an external water source;

step two: the power supply is connected, so that a central controller in the dust suppression equipment outputs signals to control the motor 11 and the water pump 12 to work through the feedback of the monitoring unit 5; the dust suppression device comprises a base 1 and a vertically arranged main shaft 2, a sprinkling unit and a monitoring unit 5 are connected to the main shaft 2, the motor 11 can enable the sprinkling unit and the monitoring unit 5 to rotate by taking the main shaft 2 as an axis, and the water pump 12 can enable the sprinkling unit to spray water;

step three: the monitoring unit 5 comprises an infrared receiver 53 and an infrared emitter 54 which are oppositely arranged, a dust collection cavity 51 which horizontally penetrates through is arranged between the infrared receiver 53 and the infrared emitter 54, and the ventilation area of an air inlet 55 of the dust collection cavity 51 is larger than that of an air outlet 52; the infrared receiver 53 judges whether a signal sent by the infrared transmitter 54 is received every twenty minutes;

step four: if the infrared receiver 53 judges that the signal is received, the raised dust density in the construction area does not exceed the critical point, and the raised dust density is fed back to the central controller, the central controller sends a signal to control the motor 11 to work, so that the monitoring unit 5 rotates ten circles by taking the spindle 2 as an axis, and the rotating speed of the motor 11 is two circles per minute; when the monitoring unit 5 rotates, air flows from the air inlet 55 to the air outlet 52 of the dust collection chamber 51;

step five: if the infrared receiver 53 judges that the signal is not received, the raised dust density in the construction area exceeds a critical point, and the raised dust density is fed back to the central controller, the central controller sends a signal to control the motor 11 and the water pump 12 to work, and the motor and the water pump work for ten minutes, so that the sprinkling unit sprays water and suppresses dust while rotating; the monitoring unit 5 rotates together, and air flows from the air outlet 52 of the dust collection cavity 51 to the air inlet 55; the sprinkling unit stops working after ten minutes, the wet dust naturally settles for ten minutes, and the infrared receiver 53 judges whether a signal is received again after twenty minutes.

Specifically, the sprinkling unit comprises a second sprinkling rod 4 and a first sprinkling rod 3, the second sprinkling rod 4 is horizontally fixed on one side of the upper end of the main shaft 2, and a plurality of second nozzles 41 for spraying water downwards are arranged on the second sprinkling rod 4; the lower end of the main shaft 2 is sleeved with a chuck 38 taking the main shaft 2 as an axis, the first sprinkling rod 3 is horizontally fixed on one side of the chuck 38, and a plurality of first nozzles 34 for spraying water upwards are arranged on the first sprinkling rod 3; an auxiliary disk-shaped gear 31 taking the main shaft 2 as an axis is fixed at the bottom of the chuck 38, a main disk-shaped gear 25 opposite to the auxiliary disk-shaped gear 31 is connected to the main shaft 2 in a key mode, a driven wheel 15 is connected between the main disk-shaped gear 25 and the auxiliary disk-shaped gear 31 in a meshing mode, a positioning plate 14 fixed on the base 1 is arranged on one side of the driven wheel 15, a rotatable impeller shaft 61 is horizontally arranged on the positioning plate 14, and the driven wheel 15 is connected to the impeller shaft 61 in a key mode; the motor 11 fixed in the base 1 rotates the main shaft 2, thereby rotating the first and second watering bars 3 and 4 in opposite directions around the main shaft 2.

Specifically, the monitoring unit 5 is fixed on the side of the upper end of the main shaft 2 opposite to the second sprinkling rod 4.

Specifically, a water inlet groove 13 surrounding a main shaft 2 is arranged in the base 1, an external water source can be pressed towards the water inlet groove 13 by the water pump 12, a main water pipe 21 is vertically arranged in the main shaft 2, the bottom of the main water pipe 21 is horizontally connected with a water inlet pipe 22 leading to the water inlet groove 13, the water inlet pipe 22 is always communicated with the water inlet groove 13 when the main shaft 2 rotates, and the upper end of the main water pipe 21 is horizontally connected with a second sprinkling pipe 24 leading to a second nozzle 41; the chuck 38 is provided with a water outlet groove 32 surrounding the spindle 2, one side of the main water pipe 21 is horizontally connected with a water outlet pipe 23 leading to the water outlet groove 32, the water outlet pipe 23 is always communicated with the water outlet groove 32 when the spindle 2 rotates, and one side of the water outlet groove 32 is horizontally connected with a first sprinkling pipe 33 leading to the first nozzle 34.

Specifically, a baffle plate 36 connected in a sliding manner in a chuck 38 is arranged between the water outlet groove 32 and the first sprinkling pipe 33, an annular groove 35 matched with the positioning plate 14 is arranged at the bottom end of the chuck 38, and the positioning plate 14 slides in the annular groove 35 when the first sprinkling rod 3 rotates; the baffle 36 is provided with a throttling hole 37 matched with the first sprinkling pipe 33, and the hemispherical end at the bottom of the baffle 36 can move into the annular groove 35 under the action of gravity; when the first spray bar 3 is rotated to the direction of the positioning plate 14, the positioning plate 14 pushes the baffle plate 36 to move upward, the throttle hole 37 is misaligned with the first spray pipe 33, and the baffle plate 36 reduces the cross-sectional area of the first spray pipe 33 to increase the flow rate of water flowing to the first nozzle 34.

Specifically, when the dust suppression device is fixed, the base 1 is fixedly connected with the ground, and the positioning plate 14 on the base 1 is positioned on the side with the largest construction action in the construction area.

Specifically, the impeller shaft 61 is further keyed with an impeller 6, and the impeller 6 can drive the driven wheel 15 to rotate under the action of wind power.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a construction site raise dust monitoring system which characterized in that: the dust suppression device comprises a base and a vertically arranged spindle, wherein a motor, a water pump and a central controller are arranged in the base, and the central controller can receive signals of the monitoring unit and send signals to control the motor and the water pump to work; the main shaft is connected with a sprinkling unit and a monitoring unit, the motor can enable the sprinkling unit and the monitoring unit to rotate by taking the main shaft as an axis, and the water pump can enable the sprinkling unit to spray water; the monitoring unit comprises an infrared receiver and an infrared transmitter which are oppositely arranged, a horizontally penetrating dust collecting cavity is arranged between the infrared receiver and the infrared transmitter, and the ventilation area of an air inlet of the dust collecting cavity is larger than that of an air outlet; the sprinkling unit comprises a second sprinkling rod and a first sprinkling rod, the second sprinkling rod is horizontally fixed on one side of the upper end of the main shaft, and a plurality of second nozzles for spraying water downwards are arranged on the second sprinkling rod; the lower end of the main shaft is sleeved with a chuck taking the main shaft as an axis, a first sprinkling rod is horizontally fixed on one side of the chuck, and a plurality of first nozzles for spraying water upwards are arranged on the first sprinkling rod; an auxiliary disk-shaped gear taking the main shaft as an axis is fixed at the bottom of the chuck, a main disk-shaped gear opposite to the auxiliary disk-shaped gear is connected to the main shaft in a key mode, a driven wheel is connected between the main disk-shaped gear and the auxiliary disk-shaped gear in a meshing mode, a positioning plate fixed on the base is arranged on one side of the driven wheel, a rotatable impeller shaft is horizontally arranged on the positioning plate, and the driven wheel is in key connection with the impeller shaft; the motor fixed in the base drives the main shaft to rotate, so that the first sprinkling rod and the second sprinkling rod rotate around the main shaft in the reverse direction.

2. The construction site raise dust monitoring system of claim 1, wherein: the monitoring unit is fixed on one side of the upper end of the main shaft, which is opposite to the second sprinkling rod.

3. The construction site raise dust monitoring system of claim 1, wherein: a water inlet groove surrounding the main shaft is formed in the base, the water pump can press an external water source to the water inlet groove, a main water pipe is vertically arranged in the main shaft, the bottom of the main water pipe is horizontally connected with a water inlet pipe leading to the water inlet groove, the water inlet pipe is always communicated with the water inlet groove when the main shaft rotates, and the upper end of the main water pipe is horizontally connected with a second sprinkling pipe leading to a second nozzle; the chuck is internally provided with a water outlet groove surrounding the main shaft, one side of the main water pipe is horizontally connected with a water outlet pipe leading to the water outlet groove, the water outlet pipe is always communicated with the water outlet groove when the main shaft rotates, and one side of the water outlet groove is horizontally connected with a first sprinkling pipe leading to a first nozzle.

4. The construction site raise dust monitoring system of claim 3, wherein: a baffle plate which is connected in the chuck in a sliding manner is arranged between the water outlet groove and the first sprinkling pipe, an annular groove which is matched with the positioning plate is arranged at the bottom end of the chuck, and the positioning plate slides in the annular groove when the first sprinkling rod rotates; the baffle is provided with a throttling hole matched with the first sprinkling pipe, and the hemispherical end at the bottom of the baffle can move into the annular groove under the action of gravity; when first watering pole rotated to the locating plate direction, the locating plate promoted the baffle rebound, and orifice and first watering pipe dislocation, the baffle made the pipeline sectional area of first watering pipe reduce, increase the rivers velocity of flow that leads to first nozzle.

5. The construction site raise dust monitoring system of claim 1, wherein: the impeller shaft is also connected with an impeller in a key way, and the impeller can drive the driven wheel to rotate under the action of wind power.