CN117309666A - Engineering construction atmospheric environment dust detection method - Google Patents
Engineering construction atmospheric environment dust detection method Download PDFInfo
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- CN117309666A CN117309666A CN202311065119.2A CN202311065119A CN117309666A CN 117309666 A CN117309666 A CN 117309666A CN 202311065119 A CN202311065119 A CN 202311065119A CN 117309666 A CN117309666 A CN 117309666A
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- 239000000428 dust Substances 0.000 title claims abstract description 172
- 238000001514 detection method Methods 0.000 title claims abstract description 157
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 158
- 230000005484 gravity Effects 0.000 claims description 13
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- 230000005540 biological transmission Effects 0.000 claims description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 11
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- 230000009286 beneficial effect Effects 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
- G01N5/025—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content
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Abstract
The invention discloses a dust detection method for engineering construction atmospheric environment in the technical field of dust detection, which comprises the following steps of: s1: erecting a detection device in a dust detection area; s2: inserting the filter membrane into a detection device and starting the detection device, wherein the detection device obtains the initial weight of the filter membrane; s3: the detection device sucks air in the dust detection area, the filter membrane adsorbs dust in the sucked air, the detection device detects the moisture content of the dust adsorbed on the filter membrane, and the total suction amount of the air is recorded in real time; s4: when the weight of the filter membrane reaches a threshold value, the detection device moves the filter membrane, so that other areas of the filter membrane can continuously adsorb dust in inhaled air; s5: the detection device acquires the real-time weight of the filter membrane, and calculates the dust concentration of the output dust detection area. The invention ensures that the filter membrane always maintains effective adsorption of dust, and ensures that the dust concentration detection precision can be maintained at a higher level for a long time.
Description
Technical Field
The invention belongs to the technical field of dust detection, and particularly relates to an engineering construction atmospheric environment dust detection method.
Background
Engineering construction typically requires detection of environmental dust concentrations to assess and control the level and potential risk of dust particles present in the engineering construction area; plays a positive role in protecting the health of workers, meeting the requirements of regulations and standards, protecting the environment and the like.
In the prior art, a large number of dust concentration detection methods exist, and as the accuracy of dust concentration detection is limited, a plurality of troubles are brought to engineering construction; for this reason, chinese patent document CN113466096B discloses a novel direct-reading dust concentration measuring instrument, which comprises a housing, a sampling device, a vortex shedding flowmeter, a dust-removing type water-passing pneumatic membrane, a sponge filter cartridge, a weight sensor, an electric air pump, a central processing unit, a battery, a display and a key unit. Through parallel filter membrane sampling and dust removal formula air-operated membrane sampling that lets in water, the treater carries out processing calculation, can filter the interference that water smoke produced in dust concentration detection to more surely read the dust concentration value in the air on the display screen.
In the dust concentration detection process, as the dust amount attached to the filter membrane is increased, the weight of the filter membrane is increased, the air quantity which can permeate the filter membrane is gradually reduced, and the dust attaching capability of the filter membrane is gradually weakened along with the increase of the dust amount, so that the dust detection precision is gradually reduced along with the use time of the filter membrane.
Disclosure of Invention
The invention aims to provide an engineering construction atmospheric environment dust detection method, which solves the problem that the dust detection precision gradually decreases along with the use time of a filter membrane.
In order to achieve the above object, the technical scheme of the present invention is as follows: the engineering construction atmospheric environment dust detection method is characterized by comprising the following steps of:
s1: erecting a detection device in a dust detection area;
s2: inserting the filter membrane into a detection device and starting the detection device, wherein the detection device obtains the initial weight of the filter membrane;
s3: the detection device sucks air in the dust detection area, the filter membrane adsorbs dust in the sucked air, the detection device detects the moisture content of the dust adsorbed on the filter membrane, and the total suction amount of the air is recorded in real time;
s4: when the weight of the filter membrane reaches a threshold value, the detection device moves the filter membrane, so that other areas of the filter membrane can continuously adsorb dust in inhaled air;
s5: the detection device obtains the real-time weight of the filter membrane and passes through the formula:calculating and outputting the dust concentration of the dust detection area; wherein: m is m 1 M is the initial weight of the filter membrane 2 The real-time weight of the filter membrane is V, the total air suction amount is V, and q is the dust water content.
The technical principle of the scheme is as follows:
through the weight of real-time detection filter membrane, the weight of filter membrane increases along with the increase of dust volume, when the filter membrane reaches certain weight, then reflect its absorptive dust volume and approach saturation, the dust is difficult to continue to adsorb to the filter membrane this moment, if continue the use then the increased weight of filter membrane is lower than the dust volume that exists in the actual suction air, consequently through the mode of removing the filter membrane position, change the adsorption that other regions of filter membrane carried out the dust continuously, promote the accuracy that the filter membrane adsorbed the dust volume promptly, the moisture content of rethread detection dust, get rid of the weight of moisture in the dust, finally calculate the dust concentration of output dust detection area.
The adoption of the scheme has the following beneficial effects:
according to the scheme, through real-time monitoring of the weight of the filter membrane, when the weight of the filter membrane reaches a threshold value of one stage, namely the adsorption quantity of dust in a region where the filter membrane is adsorbing the dust is approaching saturation, other regions where the filter membrane is replaced continue to adsorb the dust, and the weight of the filter membrane is continuously monitored in real time; and removing the interference of dust moisture on the final result; compared with the prior art, the real-time collection of filter membrane weight is realized through the detection to filter membrane weight in this scheme on the one hand, can real-time calculation output dust detection region's dust concentration, and on the other hand is according to the adsorption area of weight adjustment filter membrane, makes the filter membrane remain the effective absorption to the dust all the time, makes dust concentration detection precision can maintain higher level for a long time.
Further, after the detection device is started, the real-time inclination rate of the filter membrane of the detection device is collected, and when the real-time inclination rate of the filter membrane is larger than a threshold value, the dust concentration of the dust detection area is not calculated and output; when the filter membrane moves, the dust concentration of the output dust detection area is not calculated.
The beneficial effects are that: through gradient monitoring of the filter membrane, when the wind power of the detection device is kept unchanged and the wind power is changed by the external environment, errors are generated in the output result easily; the weight of the filter membrane monitored during the movement of the filter membrane is also inaccurate; therefore, in the two cases, the calculation of the dust concentration of the output dust detection area is stopped, and the interference to the actual result is avoided.
Further, the detection device receives a dust concentration threshold value input by a user, and sends out a prompt signal when the dust concentration of the dust detection area is calculated and output to be larger than the dust concentration threshold value.
The beneficial effects are that: the detection result of the dust concentration is compared with the set threshold value of the dust concentration, and a prompt signal is sent out, so that whether the current dust concentration meets the requirements or not is intuitively reminded, and the method is suitable for engineering construction environments.
Further, the detection device comprises a shell, wherein a suction pipeline is arranged inside the shell, one end of the suction pipeline extends out of the shell, the other end of the suction pipeline is communicated with a flow detection pipeline, a flow detector is arranged on the flow detection pipeline, an exhaust pipeline is further arranged inside the shell, a negative pressure pump is communicated on the exhaust pipeline, one end of the exhaust pipeline extends out of the shell, a connecting cover is arranged between the flow detection pipeline and the exhaust pipeline to communicate the flow detection pipeline and the exhaust pipeline, and an infrared hygrometer for detecting dust moisture content is further arranged inside the shell;
an opening for inserting a filter plate is formed in the top of the shell, a lifting mechanism is fixedly connected to the bottom of the shell, a gravity sensor is arranged at the top of the lifting mechanism, a filter membrane support frame is arranged at the top of the gravity sensor, a filter membrane mounting frame for mounting a filter membrane is arranged in the filter membrane support frame, a movable groove is formed in the side wall of the connecting cover, and the filter membrane mounting frame penetrates through the movable groove;
the controller is electrically connected with the flow detector, the gravity sensor and the infrared hygrometer respectively, and is used for acquiring the initial total weight and the real-time total weight of the filter membrane support frame, the filter membrane support frame and the filter membrane, and controlling the lifting mechanism to operate when the real-time total weight exceeds a threshold value so as to change the area covered by the connecting cover of the filter membrane; the controller is also used for calculating and outputting the dust concentration.
The beneficial effects are that: the weight change of the filter membrane is monitored in real time through a gravity sensor, and when the weight threshold is reached, the controller controls the lifting mechanism to operate so as to realize the adjustment of the dust adsorption area of the filter membrane; in the conventional detection process, the controller outputs the dust concentration of the dust detection area in real time according to the weight change of the filter membrane, namely, the dust concentration of the dust detection area can be accurately detected for a long time through the detection device.
Further, the suction pipeline is of a Z-shaped structure, an impeller is arranged in the suction pipeline, the edge of the impeller is of an arc-shaped structure attached to the inner side wall of the pipeline, and the impeller rotates along with the suction of air when the detection device operates.
The beneficial effects are that: because of the interference of external environment, in some cases, unbalanced pressure distribution can possibly occur in the suction pipe, so that the problems of unstable suction air or pressure impact occur, and the like, so that the dust amount adsorbed on the filter membrane deviates from the actual dust amount of the suction air, the pressure distribution in the pipeline can be balanced through the impeller, the suction air is ensured to uniformly distribute and stably flow in the suction pipe, and the reliability of the dust concentration detection result is improved.
Further, elevating system includes the spout that the shell inside wall was seted up, and sliding connection has a supporting part in the spout, and the supporting groove has been seted up at the supporting part top, and gravity inductor and filter membrane support frame all set up in the supporting groove, and the shell bottom rotates to be connected with the drive shaft, drive shaft and supporting part threaded connection, and the shell bottom is provided with step motor, and step motor passes through bevel gear transmission with the drive shaft to be connected, and step motor is connected with the controller electricity.
The beneficial effects are that: the region of the filter membrane for adsorbing dust is accurately adjusted in a mode of combining the stepping motor with the screw rod structure, and the utilization rate of the filter membrane is improved.
Further, the shell lateral wall is provided with the baffle, has seted up the detection mouth on the baffle, and the filter membrane mounting bracket passes the detection mouth, all is provided with resistance strain gauge in the detection mouth around the filter membrane mounting bracket, and resistance strain gauge is connected with the controller electricity, and the filter membrane mounting bracket is articulated with the filter membrane support frame, and articulated department is provided with the torsional spring, and the torsional spring makes filter membrane mounting bracket initial state be vertical state down, and the controller is used for receiving the signal of resistance strain gauge, whether the dust concentration in output dust detection area is calculated in the control.
The beneficial effects are that: the filter membrane is driven to be in a vertical state in an initial state by the torsion spring, whether the gradient of the filter membrane is overlarge or not is detected by the resistance strain gauges arranged front and back of the filter membrane in the operation process of the detection device, and whether the dust concentration of a dust detection area is calculated and output is controlled according to whether the gradient of the filter membrane is overlarge or not.
Further, an indicator lamp is arranged on the shell, and the controller enables the indicator lamp to change different colors according to the dust concentration of the dust detection area.
The beneficial effects are that: different colors are displayed through the indicator lamp, and the range value of the corresponding dust concentration is convenient for intuitively and conveniently obtaining the dust concentration change in engineering construction.
Further, the bottom of the shell is provided with a triangular bracket which is used for supporting the shell.
The beneficial effects are that: the shell is supported by the triangular bracket according to requirements and is detected at a proper height, so that the accuracy of a dust concentration detection result can be improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of a dust detection method for an atmospheric environment in engineering construction;
FIG. 2 is a schematic diagram of a detection device according to an embodiment of the method for detecting dust in an atmospheric environment in engineering construction;
FIG. 3 is a cross-sectional view of a housing of an embodiment of the method for detecting dust in an atmospheric environment in engineering construction according to the present invention;
FIG. 4 is an enlarged schematic view of part A of an embodiment of the method for detecting dust in an atmospheric environment in engineering construction;
FIG. 5 is a schematic diagram showing the installation state of a filter membrane in an embodiment of the method for detecting dust in an atmospheric environment in engineering construction.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "vertical," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the device comprises a shell 1, an indicator lamp 2, a tripod 3, a cover body 4, a suction pipeline 5, an impeller 6, an opening 7, a filter membrane mounting frame 8, an exhaust pipeline 9, a negative pressure pump 10, a driving shaft 11, a chute 12, a stepping motor 13, an infrared hygrometer 14, a flow detector 15, a connecting cover 16, a resistance strain gauge 17, a bearing groove 18, a supporting part 19, a supporting groove 20 and a gravity sensor 21.
Example 1
As shown in fig. 1: the engineering construction atmospheric environment dust detection method is characterized by comprising the following steps of:
s1: erecting a detection device in a dust detection area; in engineering construction, dust detection should be arranged at a plurality of points including, but not limited to, (1) building perimeter: and setting detection points around engineering construction to evaluate the influence of dust on the surrounding environment. These points may be located on building exterior walls, flower beds, public areas, etc. (2) construction site: and setting detection points in the construction site to evaluate the dust concentration generated in the construction process. These points may be located in different areas of the construction site, such as in the areas of crushing, digging, dusting, etc. operations. (3) employee work area: the test points are set to evaluate the exposure level of the employee. These points may be located in particular areas where personnel are working, such as where equipment is operated, areas where materials are handled, etc.
S2: inserting the filter membrane into a detection device and starting the detection device, wherein the detection device obtains the initial weight of the filter membrane; the filter membrane is preferably a brand new unused blank filter membrane so as to improve the accuracy of dust detection results.
S3: the detection device sucks air in the dust detection area, the filter membrane adsorbs dust in the sucked air, the detection device detects the moisture content of the dust adsorbed on the filter membrane, and the total suction amount of the air is recorded in real time; the total air intake amount can be calculated by collecting the total air intake amount in unit time and combining the air intake duration, and can be obtained by a real-time monitoring mode.
S4: when the weight of the filter membrane reaches a threshold value, the detection device moves the filter membrane, so that other areas of the filter membrane can continuously adsorb dust in inhaled air; the adsorption capacity of the filter membrane to dust is maintained at a higher level by adjusting the adsorption area of the filter membrane to dust; for example, when the maximum dust adsorption amount of one dust adsorption area of the filter membrane is 100g, setting a threshold value of not 80g, and when a brand-new filter membrane is used for dust adsorption, adjusting the filter membrane area when the weight of the filter membrane reaches 80 g; and when the weight of the filter membrane reaches 160g in the next stage, the filter membrane area is regulated, and the like until all dust adsorption areas of the filter membrane adsorb dust, and when the weight of the filter membrane is increased by 80g for the last time, the filter membrane needs to be replaced completely.
S5: the detection device obtains the real-time weight of the filter membrane and passes through the formula:calculating and outputting the dust concentration of the dust detection area; wherein: m is m 1 M is the initial weight of the filter membrane 2 The real-time weight of the filter membrane is V, the total air suction amount is V, and q is the dust water content. The detection of the moisture content in the dust is combined, so that the interference of the dust concentration detection result is further removed, and the final concentration detection result can be maintained at a more accurate level for a long time.
In order to avoid objective interference during the weight detection of the filter membrane, after the detection device is started, the real-time inclination rate of the filter membrane of the detection device is acquired, and when the real-time inclination rate of the filter membrane is greater than a threshold value, the dust concentration of the dust detection area is not calculated and output; when the filter membrane moves, the dust concentration of the output dust detection area is not calculated. The dust concentration detection result is only output in the process that the gradient of the filter membrane meets the requirement and the filter membrane does not move, so that the interference of the actual dust concentration is avoided.
In order to facilitate a user or a worker to timely acquire whether the concentration detection result accords with a normal value, the user intakes a dust concentration threshold according to the requirement, the detection device receives the dust concentration threshold input by the user, and when the dust concentration of the calculated and output dust detection area is larger than the dust concentration threshold, a prompt signal is sent. The prompting signals comprise ringing, sending out lamplight prompts, sending out prompting messages and the like.
Example two
As shown in fig. 2-5, this embodiment provides a specific detection device to detect the dust concentration by the above method. Specifically, detection device includes shell 1, and shell 1 bottom is provided with the tripod, and the tripod is used for supporting shell 1, and the inside fixedly connected with of shell 1 is left and right sides two accommodation space with shell 1 internal portion to fixedly connected with horizontally baffle divide into two accommodation space about with left accommodation space in left accommodation space. The inner left upper corner of the shell 1 is fixedly connected with a suction pipeline 5 in an accommodating space, the suction pipeline 5 is of a Z-shaped structure, an impeller 6 is arranged in the suction pipeline 5, the edge of the impeller 6 is of an arc-shaped structure attached to the inner side wall of the pipeline, and the impeller 6 rotates along with the suction of air when the detection device operates; one end of the suction pipeline 5 extends out of the shell 1, the other end of the suction pipeline 5 is communicated with a flow detection pipeline, a cover body 4 is hinged at the opening of the suction pipeline 5 extending out of the shell 1, and the opening of the suction pipeline 5 is closed by the cover body 4 in an initial state.
The flow detection pipeline is sleeved with a flow detection meter 15, the air quantity flowing through the flow detection pipeline is detected through the flow detection meter 15, an exhaust pipeline 9 is fixedly connected in an accommodating space on the right side inside the shell 1, a negative pressure pump 10 is communicated on the exhaust pipeline 9, one end of the exhaust pipeline 9 extends out of the shell 1, the other end of the exhaust pipeline 9 extends into an accommodating area on the left upper side inside the shell 1, a connecting cover 16 is sleeved between the flow detection pipeline and the exhaust pipeline 9 to communicate the flow detection pipeline and the exhaust pipeline 9, an infrared hygrometer 14 for detecting dust moisture content is further arranged inside the shell 1, and the infrared hygrometer 14 can be specifically extended into a suction pipeline 5 and a detection end of the infrared hygrometer 14 faces a filter membrane as shown in an attached drawing 2 of the embodiment. Thereby, the dust moisture content is detected.
The opening 7 for inserting the filter plate is offered at shell 1 top, shell 1 bottom fixedly connected with elevating system, elevating system includes spout 12 that shell 1 inside wall was offered, supporting groove 20 has been offered at supporting part 19 top, prop inslot fixedly connected with gravity inductor 21, shell 1 bottom rotation is connected with drive shaft 11, drive shaft 11 upper end and the baffle rotation that the level set up are connected, drive shaft 11 and supporting part 19 threaded connection, shell 1 bottom fixedly connected with step motor 13, step motor 13 passes through bevel gear transmission with drive shaft 11 and is connected, step motor 13 is connected with the controller electricity. In this embodiment, the number of the driving shafts 11 is 2, and the driving shafts 11 on the left side are in transmission connection with the stepping motor 13 through a bevel gear, and the driving shafts 11 on the right side are in transmission connection with the driving shafts 11 on the left side through a synchronous belt, so that the stepping motor 13 synchronously drives the two driving shafts 11 to rotate, thereby improving the stability when the filter membrane is moved.
The filter membrane support frame has been placed at gravity inductor 21 top, and the high degree of depth that does not exceed supporting slot 20 of filter membrane support frame is provided with the filter membrane mounting bracket 8 that is used for installing the filter membrane in the filter membrane support frame, and the activity groove has been seted up to the junction housing 16 lateral wall, and the filter membrane mounting bracket 8 passes the activity groove, extends to the opening 7 department at shell 1 top.
The device also comprises a controller which is respectively and electrically connected with the flow detector 15, the gravity sensor 21 and the infrared hygrometer 14, wherein the controller is used for acquiring the initial total weight and the real-time total weight of the filter membrane support frame, the filter membrane support frame 8 and the filter membrane, and controlling the operation of the lifting mechanism when the real-time total weight exceeds a threshold value, so as to change the area of the filter membrane covered by the connecting cover 16; the controller is also used for calculating and outputting the dust concentration.
Meanwhile, the controller can be electrically connected with the negative pressure pump 10 and is electrically connected with the transmission module, so that the control of the detection device can be remotely realized, and the dust concentration of the dust detection area calculated and output by the detection device can be remotely obtained; the human-computer interaction interface can also be arranged on the shell 1 and electrically connected with the controller, and a user can input a threshold value, check a detection result and the like through the human-computer interaction interface.
For further promoting the filter membrane weight accuracy that gathers, set up the detection mouth on the baffle that accommodation space content level on the inside left side of shell 1 set up, filter membrane mounting bracket 8 passes the detection mouth, all fixedly connected with resistance strain gauge 17 in the detection mouth around filter membrane mounting bracket 8, resistance strain gauge 17 is connected with the controller electricity, filter membrane mounting bracket 8 is articulated with the filter membrane support frame, and articulated department is provided with the torsional spring, the torsional spring makes filter membrane mounting bracket 8 initial condition down be vertical state, when filter membrane mounting bracket 8 carries the filter membrane to take place the wide-angle slope and resistance strain gauge 17 contact, the signal of resistance strain gauge 17 is received to the controller, whether calculate the dust concentration of output dust detection area is calculated in the control, guarantee the result accuracy of output promptly.
In addition, a bearing groove 18 is formed in the filter membrane supporting frame, the bearing groove 18 is used for bearing dust falling off from the filter membrane, and the weight of the dust in the bearing groove 18 is acquired together, so that the weight accuracy of the filter membrane is improved.
The shell 1 is fixedly connected with the indicator lamp 2, and the controller enables the indicator lamp 2 to change different colors according to the dust concentration of the calculated and output dust detection area, so that more visual dust concentration prompt is sent out.
The foregoing is merely exemplary of the present invention and the specific structures and/or characteristics of the present invention that are well known in the art have not been described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The engineering construction atmospheric environment dust detection method is characterized by comprising the following steps of:
s1: erecting a detection device in a dust detection area;
s2: inserting the filter membrane into a detection device and starting the detection device, wherein the detection device obtains the initial weight of the filter membrane;
s3: the detection device sucks air in the dust detection area, the filter membrane adsorbs dust in the sucked air, the detection device detects the moisture content of the dust adsorbed on the filter membrane, and the total suction amount of the air is recorded in real time;
s4: when the weight of the filter membrane reaches a threshold value, the detection device moves the filter membrane, so that other areas of the filter membrane can continuously adsorb dust in inhaled air;
s5: the detection device obtains the real-time weight of the filter membrane and passes through the formula:calculating and outputting the dust concentration of the dust detection area; wherein: m is m 1 M is the initial weight of the filter membrane 2 The real-time weight of the filter membrane is V, the total air suction amount is V, and q is the dust water content.
2. The engineering construction atmospheric environment dust detection method according to claim 1, wherein: after the detection device is started, collecting the real-time inclination rate of the filter membrane of the detection device, and when the real-time inclination rate of the filter membrane is greater than a threshold value, not calculating the dust concentration of the output dust detection area; when the filter membrane moves, the dust concentration of the output dust detection area is not calculated.
3. The engineering construction atmospheric environment dust detection method according to claim 1, wherein: the detection device receives a dust concentration threshold value input by a user, and sends out a prompt signal when the dust concentration of the dust detection area is calculated and output to be larger than the dust concentration threshold value.
4. The engineering construction atmospheric environment dust detection method according to claim 1, wherein: the detection device comprises a shell, wherein a suction pipeline is arranged inside the shell, one end of the suction pipeline extends out of the shell, the other end of the suction pipeline is communicated with a flow detection pipeline, a flow detector is arranged on the flow detection pipeline, an exhaust pipeline is also arranged inside the shell, a negative pressure pump is communicated on the exhaust pipeline, one end of the exhaust pipeline extends out of the shell, a connecting cover is arranged between the flow detection pipeline and the exhaust pipeline to communicate the flow detection pipeline and the exhaust pipeline, and an infrared hygrometer for detecting dust moisture content is also arranged inside the shell;
an opening for inserting a filter plate is formed in the top of the shell, a lifting mechanism is fixedly connected to the bottom of the shell, a gravity sensor is arranged at the top of the lifting mechanism, a filter membrane support frame is arranged at the top of the gravity sensor, a filter membrane mounting frame for mounting a filter membrane is arranged in the filter membrane support frame, a movable groove is formed in the side wall of the connecting cover, and the filter membrane mounting frame penetrates through the movable groove;
the controller is electrically connected with the flow detector, the gravity sensor and the infrared hygrometer respectively, and is used for acquiring the initial total weight and the real-time total weight of the filter membrane support frame, the filter membrane support frame and the filter membrane, and controlling the lifting mechanism to operate when the real-time total weight exceeds a threshold value so as to change the area covered by the connecting cover of the filter membrane; the controller is also used for calculating and outputting the dust concentration.
5. The engineering construction atmospheric environment dust detection method according to claim 4, wherein: the suction pipeline is of a Z-shaped structure, an impeller is arranged in the suction pipeline, the edge of the impeller is of an arc-shaped structure attached to the inner side wall of the pipeline, and the impeller rotates along with the suction of air when the detection device operates.
6. The engineering construction atmospheric environment dust detection method according to claim 4, wherein: the elevating system includes the spout that the shell inside wall was seted up, sliding connection has a supporting part in the spout, and the supporting groove has been seted up at the supporting part top, and gravity inductor and filter membrane support frame all set up in the supporting groove, and the shell bottom rotates to be connected with the drive shaft, drive shaft and supporting part threaded connection, and the shell bottom is provided with step motor, and step motor passes through bevel gear transmission with the drive shaft to be connected, and step motor is connected with the controller electricity.
7. The engineering construction atmospheric environment dust detection method according to claim 6, wherein: the shell lateral wall is provided with the baffle, has seted up the detection mouth on the baffle, and the filter membrane mounting bracket passes the detection mouth, all is provided with resistance strain gauge in the detection mouth around the filter membrane mounting bracket, and resistance strain gauge is connected with the controller electricity, and the filter membrane mounting bracket is articulated with the filter membrane support frame, and articulated department is provided with the torsional spring, and the torsional spring makes filter membrane mounting bracket initial state be vertical state down, and the controller is used for receiving the signal of resistance strain gauge, whether the control calculates the dust concentration of output dust detection area.
8. The engineering construction atmospheric environment dust detection method according to claim 7, wherein: the shell is provided with an indicator lamp, and the controller enables the indicator lamp to change different colors according to the dust concentration of the dust detection area.
9. The engineering construction atmospheric environment dust detection method according to claim 8, wherein: the bottom of the shell is provided with a triangular bracket which is used for supporting the shell.
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| CN202311065119.2A CN117309666A (en) | 2023-08-23 | 2023-08-23 | Engineering construction atmospheric environment dust detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118209490A (en) * | 2024-05-21 | 2024-06-18 | 中央储备粮三明直属库有限公司 | Online grain moisture real-time monitoring device and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118209490A (en) * | 2024-05-21 | 2024-06-18 | 中央储备粮三明直属库有限公司 | Online grain moisture real-time monitoring device and application method thereof |
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