CN213422921U - Simulation model for road dust dispersion law of building construction site - Google Patents
Simulation model for road dust dispersion law of building construction site Download PDFInfo
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- CN213422921U CN213422921U CN202022463026.3U CN202022463026U CN213422921U CN 213422921 U CN213422921 U CN 213422921U CN 202022463026 U CN202022463026 U CN 202022463026U CN 213422921 U CN213422921 U CN 213422921U
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Abstract
The utility model discloses a simulation model of a road raise dust dispersion law in a building construction site, which comprises a housing provided with a plurality of exhaust valves, wherein the inner side of the housing is also provided with a plurality of fans, a plurality of dust collecting devices and a plurality of dust generators; the dust collecting devices are distributed at different positions in the housing, and the exhaust valves are distributed at different positions in the housing; each exhaust valve can be opened and closed independently, each dust generator can work independently, and each fan can work independently. This scheme of adoption not only can simulate building construction place raise dust distribution law, is convenient for audio-visual acquisition raise dust source simultaneously.
Description
Technical Field
The utility model relates to a building environmental monitoring technical field especially relates to a building construction place road raise dust dispersion law simulation model.
Background
Building dust pollution is one of the main pollution sources of haze. Related studies have shown that inhalable particles are one of the major pollutants in haze pollution, wherein the major source of inhalable particles includes building dusting pollution.
The building dust mainly has the following harm to human bodies: firstly, the dust particles can flow and diffuse in different directions along with the air flow in the building construction activity, and finally become fine particles which are sucked by people through the nasal cavity and the throat and enter the lung. A large amount of bacteria and viruses are attached to the flying dust, which can cause diseases such as pulmonary function change, nervous system diseases, lung cancer and the like. For the transmission of bacteria and viruses, the flying dust can be used as a medium to accelerate the transmission speed and seriously affect the health of people. Building construction raise dust dissolves in the atmosphere, easily forms dense smoke and fog, causes smog pollution, and the particulate matter can reduce visibility, buries dangerous hidden danger to the operation workman. The chemical components of building dust and particles in the air are complex, and the acidic substances of sulfur dioxide in the air can form acid rain along with precipitation, so that the acidic substances can corrode crops, river fields, metals, building materials, cultural relics and the like. Building dust is accumulated in the air to seriously affect the traveling of citizens and the daily life of the public, and certain influence is caused on social economy and social security.
In the existing building construction, although the dust control in the building construction is one of the key points of the construction work, the ideal control effect cannot be achieved in the existing construction because the dust source, the dust diffusion rule and the like are not clear.
SUMMERY OF THE UTILITY MODEL
Because it is unclear to raise dust source, raise dust diffusion law etc. usually in the current construction to above-mentioned proposition, lead to not reaching the technical problem of the treatment effect of ideal, the utility model provides a building construction place road raise dust dispersion law simulation model and simulation method, this scheme of adoption not only can simulate building construction place raise dust distribution law, is convenient for audio-visual acquisition raise dust source simultaneously.
The utility model provides a building construction place road raise dust dispersion law simulation model and simulation method solves the problem through the following technical essential, and the building construction place road raise dust dispersion law simulation model comprises a housing provided with a plurality of exhaust valves, and the inner side of the housing is also provided with a plurality of fans, a plurality of dust collecting devices and a plurality of dust generators; the dust collecting devices are distributed at different positions in the housing, and the exhaust valves are distributed at different positions in the housing; each exhaust valve can be opened and closed independently, each dust generator can work independently, and each fan can work independently.
This scheme is when specifically using, through the housing forms dust dispersion law simulation space relatively confined for the external world to the internal environment of casing can be opened the condition, the exhaust valve and opened the different condition of condition, do not receive external disturbance under the condition of external disturbance at the fan, the air flow condition in simulation building construction place. And by utilizing the dust generators, all the dust generators are used as dust release points, a single dust generator works or a plurality of dust generators work, and the same type of dust or different types of dust are released to the simulation space. In the scheme, the dust generator is used as a dust source and used for simulating dust release in a building construction environment. And controlling the airflow environment inside the housing by utilizing the exhaust valve and the fan. In this scheme promptly, can be as required, selective opening exhaust valve and fan form the air convection condition that matches the specific construction place air current condition in the simulated space. A single dust collecting device is used as a single dust collecting point and a dust content measuring point, and the dust collecting device is used for collecting the dust condition of the position where the dust collecting device is located under the current condition so as to draft the dust distribution rule of a building construction site, and meanwhile, the dust collecting device is used for collecting the dust at the position where the dust collecting device is located, so that the follow-up specific source of the dust can be obtained through analysis.
According to the scheme, different types of dust sources can be provided, dust collection in simulation environments can be achieved at different positions, dust content detection and dust source detection can be completed through the dust collecting device after the simulation environments are matched with the airflow environment and the dust sources of actual building construction places according to needs, the flying dust dispersion rule and the flying dust source problem of the real building environments can be simulated, and accordingly the purposes of guiding building construction place environment assessment and guiding building construction flying dust treatment are achieved.
The further technical scheme is as follows:
as a specific implementation mode of the dust collecting device, the dust collecting device comprises a measuring assembly for measuring the dust content, an assembly frame for mounting the measuring assembly and a containing assembly mounted on the assembly frame, wherein the containing assembly comprises a collecting cylinder provided with a piston therein. When the dust content measuring device is used specifically, the measuring assembly is used for measuring the dust content value of the environment, the containing assembly is used for containing the environment medium, and therefore when the measured dust content exceeds a set threshold value, the piston on the containing assembly is driven to move, the collecting cylinder is enabled to execute medium suction action, the environment medium under the environment at that time is stored in the collecting cylinder for subsequent gas composition analysis, and the purposes of helping building construction to evaluate the environment influence and optimizing the building construction operation process are achieved by tracing back the source of the particulate matters in the atmosphere.
In order to enable a plurality of dust content value peaks appearing in a measuring time period to have a containing assembly for containing the environmental gas at the time, the following settings are set: the number of the containing assemblies on the dust collecting device is multiple.
As a technical scheme that the output value of being convenient for through measuring component for but each collecting vessel gathers ambient gas automated operation, set up to: the linear motor is a power source for driving the piston to execute medium suction action; make the environment medium by after the suction collection cylinder, it can keep apart for external environment before being drawn forth and be used for composition analysis, reach and avoid because the environment medium is detained in the collection cylinder, because take place the accuracy that medium exchange influences final analysis result with external environment, set up as: the front end of the collecting cylinder is also provided with an inlet pipe used for introducing fluid into the collecting cylinder, and the collecting cylinder further comprises a plug body installed in the inlet pipe, and the plug body is used for realizing that: under the condition that the pressures on the two sides are equal, the pressure-resistant rubber plug is used as a plugging plug for isolating the inner space of the collecting cylinder from the outside; under the condition that the pressure inside the collecting cylinder is smaller than the external pressure, the plug body deforms or displaces under the action of the pressure difference, so that the inner space of the collecting cylinder is in a conducting relation with the outside under the action of the inlet pipe. As a person skilled in the art, when the piston moves away from the medium suction port on the collecting cylinder, a negative pressure environment can be formed between the suction port and the piston, and at the moment, under the pressure difference, the blocking state of the plug body can be released; and when the pressure on the two sides of the plug body is not enough to maintain the opening state of the plug body along with the suction of the external gas into the collecting cylinder, the plug body is closed, and the required closed environment of the collecting cylinder can be obtained. An inlet tube is used to introduce ambient gas for subsequent interfacing with an inlet location of an analytical device to provide a medium under test to the analytical device.
Than being convenient for wash storage assembly to do benefit to the accuracy of next time composition analysis, as a simple structure, the cock body itself is convenient for dismantle in order to accomplish storage assembly abluent technical scheme, sets up to: the pipe hole of inlet tube front end is step poroid, the cock body is the annular rubber buffer that the middle part can be opened under the pressure differential effect, and the cock body is embedded into by the front end of inlet tube in the pipe hole and support on the step face of pipe hole. When the plug is used specifically, the plug can be arranged in the radial direction of the plug body, the thickness of the plug body is continuously thickened from the inside to the outside of the plug body, the plug body is conical, the tip faces the piston, the center of the tip is not in a continuous structure mode, therefore, the plug body is completely used as a shape maintaining ring to form a reliable matching relation of the plug body on an inlet pipe, when pressure difference between two sides is formed, deformation is generated locally through the plug body, the center position of the tip is opened, and a communication channel for communicating the inside and the outside of a collecting cylinder is obtained on the plug body.
To facilitate removal of the cartridge to enable the cartridge to carry gas therein for component analysis, provision is made for: the collecting cylinder is detachably connected to the assembly frame. The clamping plate can be fixed on the collecting cylinder according to the scheme of matching the linear motor, the clamping groove matched with the clamping plate is arranged on the workbench, the constraint position of the edge of the clamping groove on the clamping plate is located between the linear motor and the clamping plate, and the upper end of the clamping groove is open. Like this, when the piston moved to the one side of keeping away from the cardboard, the draw-in groove edge made the cock body can move at the axis direction of collecting vessel for the collecting vessel to the support of collecting vessel, and when the collecting vessel need be taken out, lifted the collecting vessel and can be accomplished the collecting vessel and separated on by the workstation.
In order to realize the measurement of the dust content numerical values of different height positions, the device is set as follows: the assembly frame comprises a base, a telescopic rod and a workbench, the base and the workbench are respectively fixed at the lower end and the upper end of the telescopic rod, and the storage assembly and the measuring assembly are both installed on the workbench. When specifically using, can adopt hydraulic pressure mechanism to take place flexible drive division as the telescopic link to carry the power supply through self, be convenient for realize this scheme automatic operation.
Be different from general dust content numerical measurement, for simulating the construction of spouting the face, broken construction, need dust generator can form a large amount of particulate matters in the air in the short time, for avoid if based on infrared ray, laser's measuring component because light emission end, receiving end cover particulate matter lead to measuring component to lose measuring capability and can not be perceived for construction side or detection side, set up to: the number of the measuring assemblies is multiple, and the installation angles of at least two measuring assemblies on the assembly frame are different. In this scheme, the measuring unit who utilizes different installation angle can form the characteristics of equidirectional air current, judges through the difference of different angle measuring unit measuring result, judges whether there is the problem that measuring unit became invalid.
As a specific form of a measuring assembly which has a simple structure and can output the current detection result in real time, the method adopts the following steps: the measuring assembly comprises an air duct, a dust detection sensor and an axial flow fan, wherein the dust detection sensor and the axial flow fan are installed in the air duct, and different air duct installation angles are adopted for the above installation angles. For the dust content detection sensor, in order to reduce the influence of covering particles on the measurement result, the dust content detection sensor is preferably arranged on the left side and the right side of the inner wall of the air duct; for the different building construction places of simulation, set up to: the positions of the fans, the dust generator and the dust collecting device in the housing are all adjustable; as a simple structure, can be as required, the convenient technical scheme who adjusts the dust formation volume in the simulated environment: dust generator is including being used for holding the dust bag and the piezoelectric vibrator of dust, piezoelectric vibrator is used for doing the dust bag exerts the vibrational force, in this scheme, through piezoelectric vibrator vibration dust bag for the inside dust of dust bag can be carried to the simulated environment in the mode of being shaken out, and the vibrational force of the linear adjustment piezoelectric vibrator output of concrete implementation mode accessible realizes that dust output volume is linear adjustable.
The scheme also discloses a simulation method of the dust dispersion rule of the road in the building construction site, which is based on any one of the measurement systems, and the measurement method comprises the following steps:
a dust dispersion law simulation space which is relatively closed relative to the outside is formed through the housing;
the dust generators are used as dust release points, a single dust generator works or a plurality of dust generators work, and the same type of dust or different types of dust are released to the simulation space;
controlling the airflow environment inside the housing by using the exhaust valve and the fan;
the single dust collecting device is used as a single dust collecting point and a dust content measuring point, the dust collecting device is utilized to measure the dust content in the environment medium in real time, and in the dust content measuring process, the environment medium of the specific dust collecting point is collected.
As described above, by adopting the above simulation method, a technical scheme is provided which can simulate different types of dust sources, realize dust collection in simulated environments at different positions, and can complete dust content detection and dust source detection through the dust collection device after matching the simulated environment with the airflow environment and the dust source of the actual building construction site as required, and can simulate the flying dust dispersion rule and the flying dust source problem of the actual building environment, so as to guide the building construction site environment assessment and the building construction flying dust treatment.
The utility model discloses following beneficial effect has:
this scheme of adoption provides one kind can simulate different grade type dust sources, realize that the simulated environment is middle and old dust is collected in different positions, can be as required, after matching simulated environment and actual building construction place air current environment, dust source, accomplish dust content through dust collection device and detect, dust source detects, can simulate out the raise dust dispersion law and the raise dust source problem of real building environment to reach the technical scheme who guides building construction place environment aassessment, guide the construction raise dust to administer.
Drawings
Fig. 1 is a front view of a dust collecting device in an embodiment of a simulation model of a road dust dispersion law in a construction site;
fig. 2 is a schematic structural view of a receiving assembly in an embodiment of the simulation model for the law of scattering of road dust in a construction site according to the present invention, the schematic view is a perspective view;
fig. 3 is a top view of a concrete embodiment of building construction site road raise dust dispersion law simulation model.
The reference numbers in the figures are in order: 1. the base, 2, telescopic link, 3, flexible drive division, 4, workstation, 5, accomodate the subassembly, 6, measuring component, 7, a collecting vessel, 8, inlet tube, 9, cock body, 10, piston, 11, cardboard, 12, linear electric motor, 13, housing, 14, exhaust valve, 15, fan, 16, dust generator, 17, dust collection device.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.
Example 1:
as shown in fig. 1 to 3, the simulation model for the road dust dispersion law of the building construction site comprises a housing 13 on which a plurality of exhaust valves 14 are arranged, wherein the inner side of the housing 13 is further provided with a plurality of fans 15, a plurality of dust collecting devices 17 and a plurality of dust generators 16; the dust collecting devices 17 are distributed at different positions in the housing 13, and the exhaust valves 14 are distributed at different positions in the housing 13; each exhaust valve 14 can be opened and closed independently, each dust generator 16 can work independently, and each fan 15 can work independently.
When the dust dispersion simulation device is specifically applied, a dust dispersion rule simulation space which is relatively closed relative to the outside is formed through the housing 13, so that the internal environment of the housing 13 can simulate the air flow condition of a building construction site under the conditions that the fan 15 is opened and the exhaust valve 14 is opened differently and is not interfered by the outside. With the dust generators 16, each dust generator 16 is used as a dust release point, and a single dust generator 16 or a plurality of dust generators 16 are operated to release the same type of dust or different types of dust to the simulation space. In this embodiment, the dust generator 16 is used as a dust source for simulating dust release in a building construction environment. The exhaust valve 14 and the fan 15 control the airflow environment inside the housing 13. In the scheme, the exhaust valve 14 and the fan 15 can be selectively opened according to needs, and the air convection condition matched with the air flow condition of a specific construction place is formed in the simulation space. The single dust collecting device 17 is used as a single dust collecting point and a dust content measuring point, the dust collecting device 17 is used for collecting the dust condition of the position where the dust collecting device 17 is located under the current condition so as to draw up the dust distribution rule of the building construction site, and meanwhile, the dust collecting device is used for collecting the dust of the position where the dust collecting device is located, so that the specific source of the dust can be obtained through analysis in the follow-up process.
As described above, the scheme provides a dust collection device which can provide different types of dust sources, can realize dust collection in simulation environments at different positions, can complete dust content detection and dust source detection through the dust collection device 17 after matching the simulation environments with the airflow environment and the dust source of an actual building construction site, and can simulate the flying dust dispersion rule and the flying dust source problem of the actual building environment so as to guide building construction site environment assessment and building construction flying dust treatment.
Example 2:
as shown in fig. 1 to 3, the present embodiment is further defined on the basis of embodiment 1: as a specific implementation manner of the dust collection device 17, the dust collection device 17 includes a measurement component 6 for implementing dust content measurement, a component frame for mounting the measurement component 6, and a storage component 5 mounted on the component frame, where the storage component 5 includes a collection cylinder 7 in which a piston 10 is disposed. When the dust content measuring device is specifically used, the measuring assembly 6 is used for measuring the dust content value of the environment, the containing assembly 5 is used for containing the environment medium, and therefore, when the measured dust content exceeds a set threshold value, the piston 10 on the containing assembly 5 is driven to move, the collecting cylinder 7 executes medium suction action, the environment medium under the environment at that time is stored in the collecting cylinder 7 and is used for subsequent gas component analysis, and the purposes of helping building construction to evaluate the environment influence and optimizing the building construction operation process are achieved by tracing the source of the particles in the atmosphere.
In order to enable a plurality of dust content value peaks occurring in the measurement time period to be measured, a containing assembly 5 is provided for containing the ambient gas at the time, and the following settings are provided: the number of the storage assemblies 5 on the dust collection device 17 is plural.
As a technical scheme which is convenient for the collection of the environmental gas by each collecting cylinder 7 through the output value of the measuring component 6 and can automatically operate, the technical scheme is as follows: the device also comprises a linear motor 12 for driving the piston 10 to move along the axis direction of the linear motor, wherein the linear motor 12 is a power source for driving the piston 10 to execute a medium suction action; make the environment medium by after the suction collection section of thick bamboo 7, it can be kept apart for external environment before being drawn forth and be used for composition analysis, reach and avoid because the environment medium is detained in collection section of thick bamboo 7, because take place the accuracy that medium exchange influences final analysis result with external environment, set up as: the front end of the collecting cylinder 7 is further provided with an inlet pipe 8 for introducing fluid into the collecting cylinder 7, and further comprises a plug body 9 installed in the inlet pipe 8, wherein the plug body 9 is used for realizing: under the condition that the pressures on the two sides are equal, the plug is used as a blocking plug for isolating the inner space of the collecting cylinder 7 from the outside; under the condition that the pressure inside the collecting cylinder 7 is lower than the ambient pressure, the plug body 9 deforms or displaces under the action of the pressure difference, so that the inner space of the collecting cylinder 7 and the outside are in a communication relation under the action of the inlet pipe 8. As a person skilled in the art, when the piston 10 moves away from the medium suction port on the collecting cylinder 7, a negative pressure environment can be formed between the suction port and the piston 10, and at this time, under the pressure difference, the blocking state of the plug body 9 can be released; when the pressure on the two sides of the plug body 9 is not enough to maintain the opening state of the plug body 9 as the outside air is sucked into the collecting cylinder 7, the plug body 9 is closed, and the required closed environment of the collecting cylinder 7 can be obtained. An inlet tube 8 is used to introduce ambient gas for subsequent interfacing with an inlet location of an analytical device to provide the medium under test to the analytical device.
Than being convenient for wash storage assembly 5 to do benefit to the accuracy of next time composition analysis, as a simple structure, cock body 9 itself convenient to detach sets up to in order to accomplish storage assembly 5 abluent technical scheme: the tube hole of 8 front ends of inlet tubes is step poroid, cock body 9 is the annular rubber buffer that the middle part can open under the pressure differential effect, and cock body 9 is embedded by the front end of inlet tube 8 in the tube hole and support on the step face of tube hole. In specific application, the plug body 9 can be arranged to be continuously thickened from the inside to the outside of the plug body 9 along the radial direction of the plug body 9, the plug body 9 is conical, the tip end faces the piston 10, and the center of the tip end is not in a continuous structure mode, so that the plug body 9 is completely used as a shape maintaining ring to form a reliable matching relation of the plug body 9 on the inlet pipe 8, and when a pressure difference between two sides is formed, the plug body 9 is locally deformed, the center position of the tip end is opened, and a communication channel for communicating the inside and the outside of the collecting cylinder 7 is obtained on the plug body 9.
To facilitate removal of the cartridge 7 to enable the cartridge 7 to carry the gas therein for component analysis, provision is made for: the collecting cylinder 7 is detachably connected to the assembly frame. Aiming at the scheme of matching the linear motor 12, the clamping plate 11 can be fixed on the collecting cylinder 7, meanwhile, a clamping groove matched with the clamping plate 11 is arranged on the workbench 4, the constraint position of the edge of the clamping groove on the clamping plate 11 is positioned between the linear motor 12 and the clamping plate 11, and the upper end of the clamping groove is opened. Thus, when the piston 10 moves to the side far away from the clamping plate 11, the support of the clamping groove edge to the collecting cylinder 7 enables the plug body 9 to move relative to the collecting cylinder 7 in the axial direction of the collecting cylinder 7, and when the collecting cylinder 7 needs to be taken out, the collecting cylinder 7 is lifted up to complete the separation of the collecting cylinder 7 from the workbench 4.
In order to realize the measurement of the dust content numerical values of different height positions, the device is set as follows: the assembly frame comprises a base 1, a telescopic rod 2 and a workbench 4, wherein the base 1 and the workbench 4 are respectively fixed at the lower end and the upper end of the telescopic rod 2, and a containing assembly 5 and a measuring assembly 6 are both installed on the workbench 4. When specifically using, can adopt hydraulic pressure mechanism to take place flexible drive division 3 as telescopic link 2 to carry the power supply through self, be convenient for realize this scheme automatic operation.
Be different from general dust content numerical measurement, for simulating the construction of spraying the face, broken construction, need dust generator 16 can form a large amount of particulate matters in the air in the short time, for avoid if based on infrared ray, laser measuring assembly 6 because light emission end, receiving end cover particulate matter lead to measuring assembly 6 to lose measuring ability and can not be perceived for construction side or detection side, set up to: the number of the measuring components 6 is multiple, and the installation angles of at least two measuring components 6 on the component frame are different. In this scheme, utilize the measuring component 6 of different installation angle to form the characteristics of equidirectional air current not, judge through the difference of the 6 measuring results of different angle measuring component, judge whether there is the problem that measuring component 6 became invalid.
As a specific form of the measuring component 6 which has a simple structure and can output the current detection result in real time, the following steps are adopted: the measuring assembly 6 comprises an air duct, a dust detection sensor arranged in the air duct and an axial flow fan 15, and different air duct installation angles can be adopted for the above installation angles. For the dust content detection sensor, in order to reduce the influence of covering particles on the measurement result, the dust content detection sensor is preferably arranged on the left side and the right side of the inner wall of the air duct; for the different building construction places of simulation, set up to: the positions of the fans 15, the dust generators 16 and the dust collecting devices 17 in the housing 13 are all adjustable; as a simple structure, can be as required, the convenient technical scheme who adjusts the dust formation volume in the simulated environment: dust generator 16 is including being used for holding the dust bag and the piezoelectric vibrator of dust, piezoelectric vibrator is used for doing the vibrational force is applyed to the dust bag, in this scheme, through piezoelectric vibrator vibration dust bag for the inside dust of dust bag can be carried to the simulated environment in order to be shaken out the mode, and the vibrational force of the linear adjustment piezoelectric vibrator output of concrete implementation mode accessible realizes that dust output volume is linear adjustable.
Example 3:
the embodiment provides a method for simulating a spreading rule of raised dust on a road of a building construction site, which is based on any one of the measurement systems provided by any one of the above embodiments, and the measurement method comprises the following steps:
a relatively closed dust dispersion law simulation space relative to the outside is formed by the housing 13;
by using the dust generators 16, each dust generator 16 is used as a dust release point, and a single dust generator 16 works or a plurality of dust generators 16 work to release the same type of dust or different types of dust to the simulation space;
the exhaust valve 14 and the fan 15 are used for controlling the airflow environment inside the housing 13;
the single dust collecting device 17 is used as a single dust collecting point and a dust content measuring point, the dust collecting device 17 is utilized to measure the dust content in the environment medium in real time, and in the dust content measuring process, the environment medium of the specific dust collecting point is collected.
As described above, by using the above simulation method, a technical scheme is provided, in which different types of dust sources can be simulated, dust collection in a simulation environment can be realized at different positions, and after matching the simulation environment with the airflow environment and the dust source of an actual building construction site, dust content detection and dust source detection can be completed through the dust collection device 17 as required, and the dust dispersion law and the dust source problem of the actual building environment can be simulated, so as to guide environmental evaluation of the building construction site and guide building construction dust control.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.
Claims (9)
1. The simulation model for the road dust dispersion law of the building construction site is characterized by comprising a housing (13) provided with a plurality of exhaust valves (14), wherein the inner side of the housing (13) is also provided with a plurality of fans (15), a plurality of dust collecting devices (17) and a plurality of dust generators (16); the dust collecting devices (17) are distributed at different positions in the housing (13), and the exhaust valves (14) are distributed at different positions in the housing (13); each exhaust valve (14) can be opened and closed independently, each dust generator (16) can work independently, and each fan (15) can work independently.
2. The simulation model of the dispersion law of road fugitive dust in construction sites according to claim 1, wherein the dust collection device (17) comprises a measurement component (6) for realizing the measurement of dust content and a component frame for mounting the measurement component (6), and further comprises a receiving component (5) mounted on the component frame, the receiving component (5) comprises a collection cylinder (7) in which a piston (10) is disposed.
3. The simulation model of the dispersion law of road fugitive dust on construction sites according to claim 2, wherein the number of the storage members (5) on the dust collection device (17) is plural.
4. The simulation model for the road dust dispersion law of construction sites according to claim 2, further comprising a linear motor (12) for driving the piston (10) to move along its axis; the front end of the collecting cylinder (7) is also provided with an inlet pipe (8) for introducing fluid into the collecting cylinder (7), and the collecting cylinder further comprises a plug body (9) installed in the inlet pipe (8), wherein the plug body (9) is used for realizing that: under the condition that the pressures on the two sides are equal, the pressure is used as a plugging plug for isolating the inner space of the collecting cylinder (7) from the outside; under the condition that the pressure inside the collecting cylinder (7) is lower than the external pressure, the plug body (9) deforms or displaces under the action of differential pressure, so that the internal space of the collecting cylinder (7) and the external environment are in a conducting relation under the action of the inlet pipe (8).
5. The building construction site road raise dust dispersion law simulation model of claim 4, characterized in that, the tube hole of inlet tube (8) front end is the step poroid, cock body (9) are the annular rubber buffer that the middle part can be opened under the pressure differential effect, and cock body (9) are by the front end embedding of inlet tube (8) in the tube hole and support on the step face of tube hole.
6. The building construction site road dust dispersion law simulation model of claim 2, wherein the collecting cylinder (7) is detachably connected to the assembly frame.
7. The building construction site road dust dispersion law simulation model of claim 2, characterized in that, the subassembly frame includes base (1), telescopic link (2) and workstation (4), base (1), workstation (4) are fixed in the lower extreme and the upper end of telescopic link (2) respectively, accomodate subassembly (5) and measure subassembly (6) and all install on workstation (4).
8. The simulation model of the dispersion law of road dust on construction sites according to claim 2, wherein the number of the measuring units (6) is plural, and at least two measuring units (6) are installed at different angles on the unit frame.
9. The building construction site road raise dust dispersion rule simulation model of claim 2, wherein the measurement component (6) comprises an air duct, a dust detection sensor mounted in the air duct and an axial flow fan; the positions of the fans (15), the dust generator (16) and the dust collecting device (17) in the housing (13) are all adjustable; the dust generator (16) comprises a dust bag for containing dust and a piezoelectric vibrator for applying a vibrating force to the dust bag.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432883A (en) * | 2020-10-30 | 2021-03-02 | 中信国安建工集团有限公司 | Device and method for simulating spreading law of raised dust on roads in building construction site |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432883A (en) * | 2020-10-30 | 2021-03-02 | 中信国安建工集团有限公司 | Device and method for simulating spreading law of raised dust on roads in building construction site |
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