CN207439873U - Particle concentration detection device and air processor - Google Patents
Particle concentration detection device and air processor Download PDFInfo
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- CN207439873U CN207439873U CN201721416298.XU CN201721416298U CN207439873U CN 207439873 U CN207439873 U CN 207439873U CN 201721416298 U CN201721416298 U CN 201721416298U CN 207439873 U CN207439873 U CN 207439873U
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- 238000001514 detection method Methods 0.000 title claims abstract description 92
- 239000002245 particle Substances 0.000 title claims abstract description 41
- 238000007689 inspection Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
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- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
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- 238000004378 air conditioning Methods 0.000 description 2
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- 241000124033 Salix Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
Abstract
The utility model provides a kind of particle concentration detection device and air processor.Particle concentration detection device includes main body, is equipped with detection air passage and air passage control device in main body, detects and photoelectric detector and air draft mechanism are equipped in air passage, main body is additionally provided with the first inlet section, the second inlet section, the first outlet section and the second outlet section；First inlet section and the second inlet section are connected respectively by air passage control device with detecting the air intake in air passage, and the first outlet section and the second outlet section are connected respectively by air passage control device with detecting the outlet air end in air passage；Air passage control device is connected and for selecting one in the first outlet section of control and the second outlet section to be connected with outlet air end for selecting one in the first inlet section of control and the second inlet section with air intake.The particle concentration detection device of the utility model can realize the accurate detection to the particle concentration of two environment, and accuracy of detection is high, compact-sized.
Description
Technical field
The utility model is related to air detection fields, and in particular to a kind of particle concentration detection device and air-treatment dress
It puts.
Background technology
For normal air particulate matter sensors tool currently on the market there are one negative pressure outlet section, an air intake vent is only capable of reality
Fine particle measures in a kind of existing air of environment.But in some new application fields, such as new wind devices, vehicle-mounted clarifier
In the fields of grade, there are the environment to two isolation, such as the demand that two environment of environment purification and natural environment are detected, it is existing
Air particle sensor can not realize detection to two varying environments, it is impossible to good meet demand.
Utility model content
The embodiment of the utility model provides a kind of particle concentration detection device and air processor, to difference
Particulate matter in the air of environment is detected.
In order to achieve the above objectives, on the one hand the embodiment of the utility model provides a kind of particle concentration detection device, wraps
Main body is included, detection air passage and air passage control device are equipped in main body, detects and photoelectric detector and air draft mechanism is equipped in air passage, it is main
Body is additionally provided with the first inlet section, the second inlet section, the first outlet section and the second outlet section；First inlet section and the second air inlet part
It is not connected by air passage control device with detecting the air intake in air passage, the first outlet section and the second outlet section pass through air passage respectively
Control device is connected with detecting the outlet air end in air passage；Air passage control device is for selection the first inlet section of control and the second air inlet
One in portion is connected with air intake and for selecting one and outlet air in the first outlet section of control and the second outlet section
End is connected.
Optionally, air passage control device is two six-way valves.
Optionally, air passage control device includes the first two position three-way valve and the second two position three-way valve, wherein the one or two three
Port valve connects the first inlet section, the second inlet section and air intake；Second two position three-way valve connects the first outlet section, the second outlet section
And outlet air end.
Optionally, two six-way valves are solenoid valve or hydraulic valve.
Optionally, the first two position three-way valve and the second two position three-way valve are solenoid valve or hydraulic valve.
Optionally, measuring circuit, driving circuit, signal output apparatus and processor are further included；Measuring circuit, driving circuit
It is connected with signal output apparatus with processor；Measuring circuit is connected with photoelectric detector, for obtaining photoelectric detector
Detection signal；Driving circuit is connected respectively with photoelectric detector, air passage control device and air draft mechanism, and according to processor
Control signal control photoelectric detector, air passage control device and air draft mechanism；Processor is used for according to detection signal generation detection
As a result, and send the control signal of photoelectric detector, air passage control device and air draft mechanism to driving circuit；Signal output apparatus
For exporting testing result.
Optionally, the first inlet section and/or the second inlet section are equipped in filter device, heating unit and drying device extremely
Few one kind.
The utility model embodiment second aspect provides a kind of airhandling equipment, employs foregoing particle concentration inspection
Measurement equipment
The particle concentration detection device and air processor that the utility model embodiment provides can be realized to difference
Particulate matter in the air of environment is detected, and during to a certain environment measuring, surrounding air is inhaled into from environment
Grain object concentration detection device, flow back into environment again after tested, mixed flow will not occur with the air of other environment.Due into
Gas outlet is in same pressure and particle substance environment, and no mixed flow phenomenon can be prevented because of the air inlet of particle concentration detection device
Portion and outlet section are in different environment, mixed flow and survey caused by particle concentration difference, air-flow difference or pressure difference difference
Inaccurate problem is measured, realizes the accurate measurement to the air of two varying environments, it is easy to operate, it is at low cost.
Description of the drawings
Fig. 1 is the schematic diagram of the particle concentration detection device of the utility model embodiment；
Fig. 2 and Fig. 3 is the signal of another realization method of the particle concentration detection device of the utility model embodiment
Figure；
Fig. 4 is the electrical block diagram of the particle concentration detection device of the utility model embodiment.
Drawing reference numeral explanation：
11st, the first inlet section；12nd, the second inlet section；21st, the first outlet section；22nd, the second outlet section；3rd, air passage control dress
It puts；31st, spool；32nd, the first two position three-way valve；33rd, the second two position three-way valve；3A, the first air inlet interface；3B, the second air inlet connect
Mouthful；3D, the first outlet air interface；3C, the first detection interface；3E, the second outlet air interface；3F, the second detection interface；100th, particulate matter
Concentration detection device；200th, first environment；300th, second environment；4th, air passage is detected；5th, photoelectric detector；6th, air draft mechanism；71、
Photoelectric detector driving circuit；72nd, air draft mechanism driving circuit；73rd, air passage control device driving circuit；8th, measuring circuit；9、
Processor；10th, signal output apparatus 10.
Specific embodiment
The following explanation of refer to the attached drawing is provided to help the disclosure that comprehensive understanding is limited by appended claims and their equivalents
Various embodiments.It includes various specific details to help to understand, but they should be regarded merely as schematically.Cause
This, it will be appreciated by those of ordinary skill in the art that various changes or modification can be made to various embodiments described, and
Without departing from the scope of the present disclosure and spirit.In addition, for clarity and conciseness, the description to known function and structure will be omitted.
It should be appreciated that singulative " one ", "one" and "the" include plural form, it is not unless clearly indicated by the context
So.Thus, for example, also include the reference to surface as one or more to the reference of " assembly surface ".
When used herein, term " comprising " and/or " comprising " specify depositing for disclosed function, operation or component
, but do not preclude the presence or addition of other one or more functions, operation or component.It will be further appreciated that when in this theory
In use, term " comprising " and/or " having " specify illustrated feature, integer, operation, element and/or component in bright book
In the presence of, but do not preclude the presence or addition of other one or more features, integer, operation, element and/or component and/or its group.
When used herein, term "and/or" includes any of one or more foregoing list items and all combinations.Example
Such as, " A or B " can include A or including B or including A and B.
When herein in use, the ordinal number of " first ", " second " etc. can modify various groups of various embodiments
Part, but these components are not limited.For example, these terms do not limit the order and/or importance of component.These terms are only used
In a component is mutually distinguished with another component.For example, the first user equipment and second user equipment are use different from each other
Family equipment.For example, first assembly can be indicated as the second component, and vice versa, without departing from the scope of the present disclosure.
When a component " is connected to " another component, which can be connected directly or be couple to another group
Part may be inserted into other assemblies (or multiple) therebetween.On the contrary, when a component " is directly connected to " another component
When, component between two parties cannot be inserted into therebetween.
Embodiment one
As shown in Figure 1, embodiment one provides a kind of particle concentration detection device 100, including main body, it is equipped in main body
Air passage 4 and air passage control device 3 are detected, detects and photoelectric detector 5 and air draft mechanism 6 is equipped in air passage 4, main body is additionally provided with first
Inlet section 11, the second inlet section 12, the first outlet section 21 and the second outlet section 22；First inlet section 11 and the second inlet section 12 are divided
It is not connected by air passage control device 3 with detecting the air intake in air passage 4, the first outlet section 21 and the second outlet section 22 lead to respectively
It crosses air passage control device 3 and is connected with detecting the outlet air end in air passage 4；Air passage control device 3 is for the first inlet section of selection control
11 and second one in inlet section 12 be connected with air intake and for selecting the first outlet section 21 of control and the second outlet air
One in portion 22 is connected with outlet air end.
The particle concentration detection device 100 of the present embodiment, is respectively equipped with two inlet sections, two outlet sections, two into
Wind portion and two outlet sections are connected respectively by air passage control device 3 with detection air passage 4, and air passage control device 3 can select
One in first inlet section 11 and the second inlet section 12 is connected with air intake and for selecting to control the first outlet section
21 and second one in outlet section 22 be connected with outlet air end, so can be by the first inlet section 11, the first outlet section 21 and
One environment 200 is connected, and the second inlet section 12, the second outlet section 22 are connected with second environment 300, pass through air passage control device
3 selection photoelectric detectors 5 detect the air from first environment 200 or the air from second environment 300, realize one
Particle concentration detection device 100 detects two environment.
Optionally, it is curved channel structure to detect air passage 4, can effectively prevent the generation of dust accumulation.Optionally, as in Fig. 1
Shown, inlet section is horizontally extending, and air, by the detection pipeline of arc, switchs to edge after general horizontal direction enters
Generally vertical direction flows.
Specifically, when needing to detect first environment 200, air passage control device 3 is by the first inlet section 11 and air intake phase
Connection, the first outlet section 21 is connected with outlet air end, the first inlet section 11 and the first outlet section 21 can be connected by connecting line
Connect first environment 200.Air draft mechanism 6 is opened, under the effect of air draft mechanism 6, the air of first environment 200 is through the first inlet section 11
It enters in detection air passage 4, photoelectric detector 5 detects the particle concentration in air, and then air is returned through the first outlet section 21
Into first environment 200, during this, the air of first environment 200 is inhaled into particle concentration inspection from first environment 200
Measurement equipment 100 is flow back into first environment 200 again after tested, will not be with other environment, such as the sky of second environment 300
Mixed flow occurs for gas.It is identical with the testing principle to first environment 200 to the detection of second environment 300, the difference is that air passage
Control device 3, which is controlled, is connected the second inlet section 12 with air intake, and the second outlet section 22 is connected with outlet air end.
Since air inlet outlet is in same pressure and particle substance environment, no mixed flow phenomenon can be prevented because of particle concentration
The inlet section and outlet section of detection device 100 are in different environment, because of particle concentration difference, air-flow difference or pressure difference not
With caused mixed flow and inaccurate problem is measured, realizes the accurate measurement to the air of two varying environments, it is easy to operate, into
This is low.
Further, as shown in fig. 1, two six-way valves can be used in air passage control device 3.Specifically, this two six lead to
There is valve the first air inlet interface 3A, the second air inlet interface 3B, the first outlet air interface 3D, the first detection interface 3C, the second outlet air to connect
The detections of mouth 3E and second interface 3F amounts to six interfaces；First air inlet interface 3A passes through the first inlet section 11 and first environment 200
It is connected；First outlet air interface 3D is connected by the first outlet section 21 with first environment 200, and the second air inlet interface 3B passes through the
Two inlet sections 12 are connected with second environment 300；Second outlet air interface 3E is connected by the second outlet section 22 with second environment 300
It is logical；First detection interface 3C is connected with detecting the air intake in air passage 4；Outlet air ends of the second detection interface 3F with detecting air passage 4
It is connected；Inside two six-way valves, the first air inlet interface 3A and the second air inlet interface 3B are connected with the first detection interface 3C；
First outlet air interface 3D, the second outlet air interface 3E are connected with the second detection interface 3F；Two six-way valves have spool 31, spool
31 can move between the first position and the second position.
Optionally, spool 31 is rod-shaped that the both ends of spool 31 are respectively equipped with sealing, and spool 31 can be driven and then be controlled
Two sealings are synchronized with the movement, and as shown in fig. 1, when spool 31 moves upwards, the first air inlet of closing interface 3A and first goes out
Wind interface 3D opens the second air inlet interface 3B and the second outlet air interface 3E；When spool 31 moves downward, open the first air inlet and connect
Mouth 3A and the first outlet air interface 3D, the second air inlet of closing interface 3B and the second outlet air interface 3E.
Specific detection process is illustrated below.
When needing to be detected the air of first environment 200, control spool 31 moves to first position, and spool 31 closes
The second air inlet interface 3B and the second outlet air interface 3E are closed, first air inlet interface 3A is detected interface 3C with first is connected, by the
One outlet air interface 3D is connected with the second detection interface 3F.In this way, after air draft mechanism 6 is opened, it can be by the air of first environment 200
It is introduced from the first inlet section 11, the air intake in detection air passage 4 is entered by the first detection interface 3C, then by Photoelectric Detection
After device 5 detects, the second detection interface 3F is entered by the outlet air end for detecting air passage 4, then returns to the through the first outlet section 21
In one environment 200.In whole process air will not with the air of other environment occur mixed flow, it is ensured that measurement result it is accurate
Property.
When needing to be detected the air of second environment 300, control spool 31 moves to the second position, and spool 31 closes
The first air inlet interface 3A and the first outlet air interface 3D are closed, second air inlet interface 3B is detected interface 3C with first is connected, by the
Two outlet air interface 3E are connected with the second detection interface 3F.In this way, after air draft mechanism 6 is opened, it can be by the air of second environment 300
It is introduced from the second inlet section 12, the air intake in detection air passage 4 is entered by the first detection interface 3C, then by Photoelectric Detection
After device 5 detects, the second detection interface 3F is entered by the outlet air end for detecting air passage 4, then returns to the through the second outlet section 22
In two environment 300.In whole process air will not with the air of other environment occur mixed flow, it is ensured that measurement result it is accurate
Property.
Optionally, two six-way valves are solenoid valve or hydraulic valve.More preferably, two six-way valves are solenoid valve, so can be with
The volume of two six-way valves is done compact, be conducive to reduce the overall volume of particle concentration detection device 100.
Another realization method of the air passage control device 3 shown in Fig. 2 and Fig. 3, air passage control device 3 employ two
A two position three-way valve is the first two position three-way valve 32 and the second two position three-way valve 33.First two position three-way valve 32 connection first into
Wind portion 11, the second inlet section 12 and the air intake for detecting air passage 4, and selectively by the first inlet section 11 and the second inlet section 12
In one be connected with air intake；Second two position three-way valve 33 connects the first outlet section 21, the second outlet section 22 and detection wind
The outlet air end in road 4, and selectively by one in the first outlet section 21 and the second outlet section 22 and the outlet air end for detecting air passage 4
It is connected.First inlet section 11 and the first outlet section 21 are connected with first environment 200, the second inlet section 12 and the second outlet section
22 are connected with second environment 300.
Specifically, the first two position three-way valve 31 is internally provided with the first air inlet interface 3A, the second air inlet interface 3B and the first inspection
Interface 3C is surveyed, first enters the wind interface 3A is connected with the first inlet section 11, and the second air inlet interface 3B is connected with the second inlet section 12
It connects, the first detection interface 3C is connected with detecting the air intake in air passage 4.First two position three-way valve is optionally by the first air inlet
One in the air inlet interfaces of interface 3A and second 3B is connected with the first detection interface 3C.The internal junction of second two position three-way valve 32
Structure and connection relation are similar to the first two position three-way valve, are no longer described in detail.
In this way, by controlling two two position three-way valves respectively, can realize the detection to two environment.Below to specific
Detection process illustrate.
When needing to be detected the air of first environment 200, the first two position three-way valve 32 is controlled by the first inlet section
12 are connected with the first detection interface 3C, and interface 3F phases are detected in the first outlet section 21 and second by the second two position three-way valve 33 of control
Connection.In this way, after air draft mechanism 6 is opened, the air of first environment 200 can be introduced from the first inlet section 11, by the first inspection
The air intake that interface 3C enters detection air passage 4 is surveyed, then after the detection of photoelectric detector 5, by the outlet air for detecting air passage 4
End enters the second detection interface 3F, is then returned to through the first outlet section 21 in first environment 200.Air will not in whole process
Mixed flow occurs with the air of other environment, it is ensured that the accuracy of measurement result.
When needing to be detected the air of second environment 300, the first two position three-way valve 32 is controlled by the second inlet section
12 are connected with the first detection interface 3C, and interface 3F phases are detected in the second outlet section 22 and second by the second two position three-way valve 33 of control
Connection.In this way, after air draft mechanism 6 is opened, the air of second environment 300 can be introduced from the second inlet section 12, by the first inspection
The air intake that interface 3C enters detection air passage 4 is surveyed, then after the detection of photoelectric detector 5, by the outlet air for detecting air passage 4
End enters the second detection interface 3F, is then returned to through the second outlet section 22 in second environment 300.Air will not in whole process
Mixed flow occurs with the air of other environment, it is ensured that the accuracy of measurement result.
In addition, in the case of using two two position three-way valves, other measurement methods can also be realized, such as by the first ring
The air in border 200 introduces, and is drained into after the detection of photoelectric detector 5 in second environment 300；Or by second environment 300
Air introduces, and is drained into after the detection of photoelectric detector 5 in first environment 200.Embodiment of above is in the guarantor of the application
Within the scope of shield.
Optionally, solenoid valve or hydraulic valve may be employed in the first two position three-way valve 32 and the second two position three-way valve 33.It is preferred that
Using solenoid valve.
It should be noted that the air passage control device 3 in the present embodiment is not limited to two six-way valves and two position three-way valve
Mode, it is any can realize air passage switching structure in the range of the limitation of the application.
In addition, the present embodiment is not limited to two different environment of detection, it can also be by increasing or adjusting the side of control valve
Formula detects the varying environment of three or more, any to employ the scheme with the same technical concept of the present embodiment in the present embodiment
Limitation in the range of.
Further, as shown in Figure 4, particle concentration detection device 100 further includes measuring circuit 8, driving circuit, letter
Number output circuit 10 and processor 9；Measuring circuit 8, driving circuit and signal output apparatus 10 are connected with processor；Measurement
Circuit 8 is connected with photoelectric detector 5, for obtaining the detection signal of photoelectric detector 5；Driving circuit and photoelectric detector 5,
Air passage control device 3 and air draft mechanism 6 connect respectively, and control photoelectric detector 5, air passage according to the control signal of processor 9
Control device 3 and air draft mechanism 6；Processor 9 is used for according to detection signal generation testing result, and sends photoelectricity to driving circuit
The control signal of detector 5, air passage control device 3 and air draft mechanism 6；Signal output apparatus 10 is used to export testing result.
Optionally, the transmission line (not shown) arranged in a crossed manner with detection air passage 4 is equipped in air passage 4 is detected,
Photoelectric detector 5 is arranged in transmission line.
Specifically, photoelectric detector 5 includes laser emitter and receiver (not shown), laser emitter are arranged on
The one side of transmission line, receiver are arranged on the opposite side of transmission line, and the laser of laser transmitter projects passes through detection
It is received behind air passage 4 by receiver.
When detect have in air passage 4 air-flow for carrying particulate matter by when, through intersecting for detection air passage 4 and transmission line
The particulate matter in region is scattered the laser beam in transmission line, and photoelectric detector 5 receives the optical signal of scattering, and will
Optical signal is converted into electric signal and is sent to measuring circuit 8, and measuring circuit 8 amplifies electric signal, filter and analog-to-digital conversion process is
Processor 9 is sent to after digital signal, processor 9 is analyzed to obtain the testing result of particulate matter.
Specifically, measuring circuit 8 may include amplifying circuit, filter circuit and analog to digital conversion circuit.
By the cross-sectional diameter very little for the laser beam that laser emitter is exported, the optical energy density of unit area is very
It is high.Detection air passage 4 and transmission line have air-flow by when, the small part particulate matter in air-flow passes through the irradiated region of laser beam
Domain, each particulate matter generate the optical signal scattered through laser beam irradiation area and can be detected by photoelectric detector 5, and
And the time of particulate matter through laser beam irradiation area is very short (μ s magnitudes), and therefore, the light that photoelectric detector 5 can will receive
Signal is converted into the electric signal of a μ s magnitude, measuring circuit 8 is amplified electric signal, filter and analog-to-digital conversion after by place
The analysis of reason device 9 can be obtained by the testing result of particulate matter in air-flow.
For PM2.5 or particle more smaller than PM2.5 diameter, due to the unit of the laser beam of laser output
Area optical energy density is very high, even if the diameter very little of particulate matter, particulate matter is to optical signal caused by laser beam scattering
Energy is also enough to be detected by photoelectric detector 5, improves the accuracy of detection of particulate matter.
The laser beam that receiver is transmitted for absorption through air-flow by transmission line.Laser emitter output swashs
Although particulate matter of the light light beam in air-flow of the detection air passage 4 with transmission line intersecting area is irradiated to can scatter,
It is that the laser beam of only fraction is scattered, most laser beam can also continue to transmit along optical transmission pathway, particle
The finite volume of object sensor is, it is necessary to absorb unscattered most of laser beam using absorption means.
Optionally, receiver can be light trapping, such as can be pentagon light trapping, triangle light trapping or circular light
Trap.But it is not limited to this, and the receiver of other forms also can be used.
Specifically, driving circuit may include photoelectric detector driving circuit 71, air draft mechanism driving circuit 72 and air passage control
Device driving circuit 73 processed.
Photoelectric detector driving circuit 71 is used to receive the first control signal of processor 9, and controls photoelectric detector 5
Working condition specifically, controls laser emitter and receiver operation；
Air draft mechanism driving circuit 72 is used to receive the second control signal of processor 9, and controls the work of air draft mechanism 6
State；
Air passage control device driving circuit 73 is used to receive the 3rd control signal of processor 9, and controls air passage control dress
Put 3 working condition.
Processor 9 is used for according to detection signal generation testing result, and sends photoelectric detector 5, air passage to driving circuit
The control signal of control device 3 and air draft mechanism 6.
Optionally, first inlet section 11 and/or second inlet section 12 are equipped with filter device, heating unit and do
At least one of dry device.
Wherein, filter screen, filter cotton may be employed in filter device, to cross the large granular impurity in air filtering, such as willow
Wadding etc., to reduce interference of the impurity to testing result.
Heating unit and drying device prevent air from entering inspection for removing the moisture in the air entered by inlet section
Solidifying mist is generated after surveying in passage, and then influences the accuracy of test result.Electric heater unit, drying device can be used in heating unit
Dehydrating unit can be used or made of hygroscopic material.
Embodiment two
Embodiment two provides a kind of airhandling equipment, and which employs the particle concentration detection devices of embodiment one
100.The airhandling equipment of the present embodiment, which can be that air purifier, new wind mechanism, air-conditioning etc. are any, to carry out air
The equipment of processing can realize that the particle concentration of the air to two varying environments is detected.For example, airhandling equipment
Can be air conditioning for automobiles or vehicular air purifier, first environment 200 is vehicle external environment, and second environment 300 drives to be interior
Environment in room, such airhandling equipment can be realized to the particle concentration of vehicle external environment and in interior driver's cabin
The detection respectively of grain object concentration.
More than, it is only specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and is appointed
In the technical scope what those familiar with the art discloses in the utility model, change or replacement can be readily occurred in,
It should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the guarantor of claim
It protects subject to scope.
Claims (8)
1. including main body, detection air passage and air passage control device, the inspection are equipped in main body for a kind of particle concentration detection device
It surveys and photoelectric detector and air draft mechanism is equipped in air passage, which is characterized in that the main body is additionally provided with the first inlet section, the second air inlet
Portion, the first outlet section and the second outlet section；First inlet section and second inlet section are controlled respectively by the air passage
Device is connected with the air intake in the detection air passage, and first outlet section and second outlet section pass through the wind respectively
Road control device is connected with the outlet air end in the detection air passage；
The air passage control device for select to control one in first inlet section and second inlet section with it is described
Air intake is connected and for selecting to control one in first outlet section and second outlet section and the outlet air
End is connected.
2. particle concentration detection device according to claim 1, which is characterized in that the air passage control device is one
Two six-way valves.
3. particle concentration detection device according to claim 1, which is characterized in that the air passage control device includes the
One two position three-way valve and the second two position three-way valve, wherein
First two position three-way valve connects first inlet section, second inlet section and the air intake；
Second two position three-way valve connects first outlet section, second outlet section and the outlet air end.
4. particle concentration detection device according to claim 2, which is characterized in that two six-way valves are solenoid valve
Or hydraulic valve.
5. particle concentration detection device according to claim 3, which is characterized in that first two position three-way valve and institute
The second two position three-way valve is stated as solenoid valve or hydraulic valve.
6. particle concentration detection device according to claim 3, which is characterized in that further include measuring circuit, driving electricity
Road, signal output apparatus and processor；
The measuring circuit, the driving circuit and the signal output apparatus are connected with the processor；
The measuring circuit is connected with the photoelectric detector, for obtaining the detection signal of the photoelectric detector；
The driving circuit is connected respectively with the photoelectric detector, the air passage control device and the air draft mechanism, and root
The photoelectric detector, the air passage control device and the air draft mechanism are controlled according to the control signal of the processor；
The processor is used for according to the detection signal generation testing result, and is sent the photoelectricity to the driving circuit and examined
Survey the control signal of device, the air passage control device and the air draft mechanism；
The signal output apparatus is used to export the testing result.
7. particle concentration detection device according to claim 1, which is characterized in that first inlet section and/or institute
The second inlet section is stated equipped at least one of filter device, heating unit and drying device.
8. a kind of air processor, it is characterised in that employ such as the particle concentration any one of claim 1-7
Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416298.XU CN207439873U (en) | 2017-10-30 | 2017-10-30 | Particle concentration detection device and air processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416298.XU CN207439873U (en) | 2017-10-30 | 2017-10-30 | Particle concentration detection device and air processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207439873U true CN207439873U (en) | 2018-06-01 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307680A (en) * | 2020-03-10 | 2020-06-19 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN113483433A (en) * | 2021-07-12 | 2021-10-08 | 韦氏（苏州）医疗科技有限公司 | Medical logistics management system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307680A (en) * | 2020-03-10 | 2020-06-19 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN111307680B (en) * | 2020-03-10 | 2022-10-21 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN113483433A (en) * | 2021-07-12 | 2021-10-08 | 韦氏（苏州）医疗科技有限公司 | Medical logistics management system |
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