CN206944410U - Monitoring system for more dust factory buildings - Google Patents
Monitoring system for more dust factory buildings Download PDFInfo
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- CN206944410U CN206944410U CN201720760972.XU CN201720760972U CN206944410U CN 206944410 U CN206944410 U CN 206944410U CN 201720760972 U CN201720760972 U CN 201720760972U CN 206944410 U CN206944410 U CN 206944410U
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- dust
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Abstract
The utility model discloses a kind of monitoring system for more dust factory buildings, including dust investigating, detects the dust concentration in factory building and exports dust detection signal；Control device, dust investigating is coupled to, for judging dust detection signal size, when the amplitude of dust detection signal is more than the first preset value, output control signal；Exhaust blower, control device is coupled to, for discharging dust；And the retracting device located at exhaust blower exit, retracting device includes the outlet of connection exhaust blower and extraneous recycling box, the screen pack being detachably connected in recycling box, after dust concentration in sensor of dust concentration detection factory building, judge that automatic start exhaust blower discharges dust in factory building through control device, the dust concentration in factory building is reduced, has saved the energy；Reclaimed from the dust of exhaust blower discharge by retracting device, the dust pollution in air can be prevented；The setting of flowmeter can remind the timely clearing and retrieving device of staff, ensure that whole system operation is smooth.
Description
Technical field
Factory building safety monitoring technology field is the utility model is related to, more specifically, it relates to which a kind of be used for more dust factories
The monitoring system in room.
Background technology
Dust explosion, refer to dust in the range of explosion limit, run into thermal source（Naked light or high temperature）, flame moment propagated in whole
Individual mixed dust space, chemical reaction velocity are exceedingly fast, while discharge substantial amounts of heat, form very high temperature and very big pressure,
The energy of system is converted into the radiation of mechanical energy and light and heat, has very strong destructive power.Dust explosion it is more with aluminium powder,
Zinc powder, aluminum profile extrusion grounds travel, various plastic powders, the intermediate of organic synthesis medicine, wheat flour, sugar, wood chip, dyestuff, glue
Factory building is produced and processed caused by wood ash, milk powder, tea-leaf power, tobacco powder, coal dust, string dirt etc..
Dust explosion condition typically has three：Combustible dust is suspended in atmosphere with appropriate concentration；There is the sky of abundance
Gas and oxidant；There are burning things which may cause a fire disaster or judder and friction.So when the dust in air reaches finite concentration, pole has can
Dust explosion can occur, cause casualties and property loss.In the more factory building of existing dust, understand equipped with exhaust blower,
Dust in factory building is drained into outside by pipeline, the exhaust blower typically by manual control, when worker starts working, is switched on
Exhaust blower.But the dust concentration many times in factory building is not up to the concentration of blast, always on exhaust blower can cause energy
The waste in source.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of prison for more dust factory buildings
Control system, exhaust blower can be automatically turned on when dust reaches finite concentration in factory building, saves the energy.
To achieve the above object, the utility model provides following technical scheme：
A kind of monitoring system for more dust factory buildings, including：Dust investigating is dense for detecting the dust in factory building
Degree, export a dust detection signal；Control device, the dust investigating is coupled to receive the dust detection signal,
It is described when the amplitude of the dust detection signal is more than the first preset value for judging the size of the dust detection signal
Control device exports a control signal；Exhaust blower, the control device is coupled to receive the control signal, for discharging factory
Dust in room；And it is arranged at the retracting device for being used to reclaim dust in the exhaust blower exit, the retracting device bag
Include and connect the exhaust blower outlet and extraneous recycling box, be exported in the recycling box in the exhaust blower on the passage in the external world
It is provided with the screen pack being detachably connected with it.
By using above-mentioned technical proposal, when in the factory building of dust investigating detection dust concentration more than the first preset value
When, illustrate that the dust concentration in factory building has exceeded the safety value of setting, this timed unit output control signal is to control air draft
Machine is started working, and the dust in factory building is discharged into the external world, to reduce the dust concentration in factory building；Also, discharge extraneous dust
Reclaimed by retracting device, can air conservation, from exhaust blower discharge dust filtered after recycling box in mistake
In sieve plate, clean air is discharged the external world, reduces the dust pollution in air.
Further, the dust investigating includes the sensor of dust concentration for being coupled to the control device, described
Dust concentration and the corresponding dust detection signal of output in sensor of dust concentration detection factory building.
Further, the control device includes：First preset value generative circuit, believe for generating with dust detection
Number the first preset value compared；First comparator, it is described to receive that its in-phase input end is coupled to the sensor of dust concentration
Dust detection signal, inverting input are coupled to the first preset value generative circuit to receive first preset value, work as institute
When stating dust detection signal and being more than first preset value, the output end of the first comparator exports the control signal to control
The exhaust blower is made to open.
By using above-mentioned technical proposal, when the dust detection signal of sensor of dust concentration output is more than the first preset value
When, illustrate factory building concentration exceed setting safety value, now first comparator output end output high level control signal with
Exhaust blower is controlled to start working.
Further, the monitoring system is also logical for detecting close to extraneous side including being arranged in the recycling box
The flow detector for the gas flow crossed after the screen pack, and export a flow detecting signal；The control device coupling
The flow detector is connected to receive the flow detecting signal, for judging the size of the flow detecting signal, when
When the flow detecting signal is less than the second preset value, an alarm signal is exported；It is coupled with the control device for reminding
Staff clears up the alarm set of the screen pack.
By using above-mentioned technical proposal, after a period of time, screen pack can be blocked by dust, influence the discharge of exhaust blower
Effect, so flow detector is used to detect by the gas flow after screen pack, when flow detector output
When flow detecting signal is less than setting value, illustrate that the mesh on screen pack blocks more serious, it is necessary to be cleared up in time, this
Timed unit control alarm set work, to remind staff to clear up screen pack, avoids influenceing the normal fortune of exhaust blower
OK.
Further, the control device includes：Second preset value generative circuit, believe for generating with the flow detection
Number the second preset value compared；Second comparator, its inverting input are coupled to the flow detector to receive the stream
Detection signal is measured, in-phase input end is coupled to the second preset value generative circuit to receive second preset value, when described
When flow detecting signal is less than second preset value, the output end of second comparator exports the alarm signal to control
The alarm set work.
By using above-mentioned technical proposal, when the amplitude of flow detecting signal is less than the second preset value, illustrate screen pack
The mesh of plate blocks more serious, and now, the alarm signal of the second comparator output high level is to control alarm set to work.
Further, the flow detector includes flowmeter.
Further, the alarm set includes audible-visual annunciator.
Further, the recycling box upper end offers the T-shaped spliced eye in section, the screen pack and the grafting
Hole grafting coordinates.
By using above-mentioned technical proposal, screen pack is directly set with recycling box grafting, when needing cleaning, directly will
Screen pack is extracted, convenient disassembly.
Further, the empty inwall of the grafting is provided with seal.
By using above-mentioned technical proposal, prevent dust from being spilt from the gap of connection, influence recovering effect.
Further, the Handheld Division for being easy to operation is provided with the outside of the screen pack.
By using above-mentioned technical proposal, it is easy to staff to dismount screen pack.
Compared with prior art, the utility model has the advantages that：
1st, after the dust concentration in sensor of dust concentration detection factory building, automatically starting exhaust blower is judged through control device
Dust is discharged in factory building, the dust concentration in factory building is reduced, has saved the energy；
2nd, reclaimed from the dust of exhaust blower discharge by retracting device, the dust pollution in air can be prevented；
3rd, the setting of flowmeter can remind the timely clearing and retrieving device of staff, ensure that whole system operation is smooth.
Brief description of the drawings
Fig. 1 is circuit control principle figure of the present utility model；
Fig. 2 is the schematic diagram of retracting device.
Reference：1st, control device；11st, the first preset value generative circuit；12nd, first comparator；13rd, the second preset value
Generative circuit；14th, the second comparator；2nd, exhaust blower；3rd, retracting device；31st, recycling box；32nd, screen pack；33rd, spliced eye；
34th, Handheld Division；4th, sensor of dust concentration；5th, alarm set；6th, flowmeter.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of monitoring system for more dust factory buildings, reference picture 1, including be arranged on dense for detecting dust in factory building
Spend and export the dust investigating of a dust detection signal, be coupled to dust investigating to receive the use of dust detection signal
In judging dust detection signal size, and a control signal is exported when the amplitude of dust detection signal is more than the first preset value
Control device 1, control device 1 is coupled to receive the exhaust blower 2 for being used to discharge dust in factory building of control signal and set
In the exit of exhaust blower 2 retracting device 3 of atmospheric dust pollution is prevented for reclaiming dust.
In the present embodiment, dust investigating uses sensor of dust concentration 4, and the sensor of dust concentration 4 can be examined in real time
The dust concentration surveyed in factory building, and export corresponding dust detection signal；Control device 1 includes being used to generate believing with dust detection
The the first preset value generative circuit 11 and in-phase input end of number the first preset value compared are coupled to sensor of dust concentration 4
To receive dust detection signal, inverting input be coupled to the first preset value generative circuit 11 with receive the first preset value first
Comparator 12, when dust detection signal is more than the first preset value, the control of the output end output high level of first comparator 12
Signal is to control exhaust blower 2 to open.Wherein, the first preset value generative circuit 11 includes the resistance R1 and resistance R2 of series connection, and electricity
Resistance R1 and resistance R2 tie point is coupled to the inverting input of first comparator 12, and resistance R1 and resistance R2 ratio determines the
The size of one preset value, so in another embodiment, the resistance of one of them uses potentiometer, adjustable safety value.
In order to which the dust for preventing exhaust blower 2 from discharging is immediately discharged to cause atmosphere pollution in air, the exit of exhaust outlet is set
Retracting device 3, reference picture 2 are put, retracting device 3 includes the outlet of connection exhaust blower 2 and extraneous recycling box 31, recycling box 31
Upper end is vertically installed with the spliced eye 33 of the T-shaped setting in section with gas circulating direction, is equipped with the grafting of spliced eye 33
There is screen pack 32 so that the gas discharged from exhaust blower 2 necessarily passes screen pack 32.In addition, in order to ensure screen pack
32 sealings being connected with recycling box 31, prevent dust from being overflowed from the gap of connection, and sealing is provided with the inwall of spliced eye 33
Part.Seal can use elastic blob of viscose.The upper end of screen pack 32 is provided with the Handheld Division 34 for being easy to operation, such as handle.
In addition, when work for a period of time after, the mesh on screen pack 32 can be blocked by dust, so in order to keep this to be
The normal operation of system, it is provided with recycling box 31 close to extraneous side and is used to detect the gas flow after passing through screen pack 32
And the flow detector of a flow detecting signal is exported, if flow detecting signal is less than setting value, illustrate that mesh is blocked
Fill in, now remind staff to clear up screen pack 32 in time.By upper, reference picture 1, control device 1 also includes being used to generate
It is default that the second preset value generative circuit 13, the in-phase input end of the second preset value compared with flow detecting signal are coupled to second
It is worth generative circuit 13 to receive the second comparator 14 of the second preset value, when flow detecting signal is less than the second preset value, the
The alarm signal of the output end output high level of two comparators 14 is to control alarm set 5 to work.Wherein, the second preset value generates
Circuit 13 includes the resistance R3 and resistance R4 of series connection, and resistance R3 and resistance R4 tie point are coupled to the same of the second comparator 14
Phase input, resistance R3 and resistance R4 ratio determine the size of the second preset value, so in another embodiment, one of them
Resistance use potentiometer, can adjust the second preset value size.
In the present embodiment, flow detector can be flowmeter 6；Alarm set 5 can be audible-visual annunciator.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. monitoring system for more dust factory buildings, it is characterised in that including：Dust investigating, for detecting the dust concentration in factory building, export a dust detection signal；Control device (1), the dust investigating is coupled to receive the dust detection signal, for judging the dust The size of detection signal, when the amplitude of the dust detection signal is more than the first preset value, control device (1) output one Control signal；Exhaust blower (2), the control device (1) is coupled to receive the control signal, for discharging the dust in factory building；And it is arranged at the retracting device (3) for being used to reclaim dust in the exhaust blower (2) exit, the retracting device (3) Including connecting exhaust blower (2) outlet and extraneous recycling box (31), go out in the recycling box (31) in the exhaust blower (2) The screen pack (32) being detachably connected with it is provided with mouth to the passage in the external world.
- 2. the monitoring system according to claim 1 for more dust factory buildings, it is characterised in that the dust investigating Sensor of dust concentration (4) including being coupled to the control device (1), the sensor of dust concentration (4) are detected in factory building Dust concentration and export the corresponding dust detection signal.
- 3. the monitoring system according to claim 2 for more dust factory buildings, it is characterised in that the control device (1) Including：First preset value generative circuit (11), for generating the first preset value compared with the dust detection signal；First comparator (12), its in-phase input end are coupled to the sensor of dust concentration (4) and detected with receiving the dust Signal, inverting input is coupled to the first preset value generative circuit (11) to receive first preset value, when the powder When dirt detection signal is more than first preset value, the output end of the first comparator (12) exports the control signal to control Make the exhaust blower (2) unlatching.
- 4. the monitoring system according to claim 1 for more dust factory buildings, it is characterised in that the monitoring system is also wrapped Include to be arranged in the recycling box (31) and be used to detect by the gas stream after the screen pack (32) close to extraneous side The flow detector of amount, and export a flow detecting signal；The control device (1) be coupled to the flow detector with The flow detecting signal is received, for judging the size of the flow detecting signal, when the flow detecting signal is less than the During two preset values, an alarm signal is exported；It is coupled with the control device (1) for reminding staff to clear up the filtering The alarm set (5) of web plate (32).
- 5. the monitoring system according to claim 4 for more dust factory buildings, it is characterised in that the control device (1) Including：Second preset value generative circuit (13), for generating the second preset value compared with the flow detecting signal；Second comparator (14), its inverting input are coupled to the flow detector to receive the flow detecting signal, In-phase input end is coupled to the second preset value generative circuit (13) to receive second preset value, when the flow detection When signal is less than second preset value, the output end output alarm signal of second comparator (14) is described to control Alarm set (5) works.
- 6. the monitoring system according to claim 5 for more dust factory buildings, it is characterised in that the flow detector Including flowmeter (6).
- 7. the monitoring system according to claim 6 for more dust factory buildings, it is characterised in that the alarm set (5) Including audible-visual annunciator.
- 8. the monitoring system according to claim 1 for more dust factory buildings, it is characterised in that on the recycling box (31) End offers the T-shaped spliced eye in section (33), and the screen pack (32) coordinates with the spliced eye (33) grafting.
- 9. the monitoring system according to claim 8 for more dust factory buildings, it is characterised in that the empty inwall of the grafting It is provided with seal.
- 10. the monitoring system according to claim 9 for more dust factory buildings, it is characterised in that the screen pack (32) Handheld Division (34) for being easy to operation is provided with the outside of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720760972.XU CN206944410U (en) | 2017-06-28 | 2017-06-28 | Monitoring system for more dust factory buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720760972.XU CN206944410U (en) | 2017-06-28 | 2017-06-28 | Monitoring system for more dust factory buildings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944410U true CN206944410U (en) | 2018-01-30 |
Family
ID=61366333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720760972.XU Expired - Fee Related CN206944410U (en) | 2017-06-28 | 2017-06-28 | Monitoring system for more dust factory buildings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029913A (en) * | 2021-04-12 | 2021-06-25 | 常熟迈得医疗器械技术服务有限公司 | Particulate matter filtering efficiency testing device and using method thereof |
-
2017
- 2017-06-28 CN CN201720760972.XU patent/CN206944410U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029913A (en) * | 2021-04-12 | 2021-06-25 | 常熟迈得医疗器械技术服务有限公司 | Particulate matter filtering efficiency testing device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201914 A1-57 room 58, Fumin Road, Chongming District, Shanghai. Patentee after: China time construction group Limited by Share Ltd. Address before: 201914 Hengtai Economic Development Zone, Chongming County, Shanghai, A1-57 (room 58, Fumin Road, Chongming) Patentee before: Shanghai Yue Chun construction and Installation Engineering Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20210628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |