Air cleaner pressure test device with remote transmission function
Technical field
The utility model relates to a kind of air cleaner pressure test device with remote transmission function, it is adaptable to ventilated
Filter equipment.Belong to building HVAC technical field.
Background technology
At present, indoor air quality is related to the health of people, is increasingly subject to people's attention.Improve room air
One method of quality is, installs air cleaner on ventilation equipment, dirty to reduce particulate matter in air and other
Dye point.But, in actual ventilation and air conditioning system, air cleaner, due to Long-Time Service, is easily caused dust
Inaccessible filter element, thus grow a large amount of bacterium, make the poor filtration effect of filter, even pollute the sky by it
Gas.Need to change filter core and could solve this problem.
In prior art, being typically all and being checked by human at periodic intervals, whether degradation seen by air cleaner, to determine
Whether change filter.Owing to, in actually used heating ventilation air-conditioning system for building, having the installation of partial ventilation equipment
Position is not allowed in easy-to-maintain space at furred ceiling etc., and therefore, the hand inspection mode of prior art has following defects that
(1) installation site of inspection personnel's more difficult observation filter, causes manual detection difficulty.(2) manual detection result
Related to the ability of staff and the state of mind, there is human factor impact so that testing result is inaccurate.(3)
Filtering element for air filter cannot be changed in time, causes air filtration effect difference, even pollutes and is crossed air filtering.
Utility model content
The purpose of this utility model, is for solving existing manual detection air cleaner difficulty, testing result crow paulin ship
Human factor affects so that inaccurate problem, provides a kind of air cleaner pressure differential detection with remote transmission function to fill
Put.This device have automatically detection and remote wireless monitoring filter element behaviour in service, change filter in time
Filter core and the feature ensureing IAQ.
The purpose of this utility model can be reached by following technical scheme:
With the air cleaner pressure test device of remote transmission function, its design feature is: include air cleaner,
Pressure differential detection unit, signal processing module, wireless transport module and power supply, pressure differential detection unit, signal processing module,
The power input of wireless transport module and power control circuit connects the output of power supply;Air cleaner is installed on logical
In wind pipeline, the detection head of pressure differential detection unit is arranged on the front and back ends of air cleaner, the letter of pressure differential detection unit
Number output connects the signal input part of wireless transport module by signal processing module;Wireless transport module has wireless
Signal output part, realize that remote signal carries, form the monitoring automatically of air cleaner pressure at two ends and remote signal passes
Defeated structure.
Further, signal processing module is connected with power control circuit, and signal processing module includes that signals collecting is amplified
Circuit, central processing unit and data storage;The signal input part of signals collecting amplifying circuit connects pressure differential detection unit
Signal output part, signal output part connect central processing unit signal input part, central processing unit has analog-to-digital and turns
Changing unit and digital signal output end, this digital signal output end connects the signal input part of data storage and wireless biography
The signal input part of defeated module;The control signal output of power control circuit connects signals collecting amplifying circuit and data
The power control terminal of memory, forms the power supplyl controlling structure of signals collecting amplifying circuit and data storage.
Further, described pressure differential detection unit includes differential pressure pickup and two detection heads, and described detection head is arranged on
In ventilation duct before and after filter in pipeline, the signal output part of detection head connects the signal input part of differential pressure pickup,
The signal output part of differential pressure pickup connects the signal input part of signal processing module.
Further, described power supply is independent movable power source.
Further, described data storage is moveable safe digital SD card.
Further, the standard of replacement of described filter is, the pressure difference of differential pressure pickup measurement reaches brand-new filter
2 times of pressure difference or more.
The utility model has a beneficial effect following outstanding:
1st, the utility model is by being installed in ventilation shaft air cleaner, and the detection head of pressure differential detection unit is empty
The front and back ends of air filter, the signal output part of pressure differential detection unit connects the signal input part of signal processing module,
The signal output part of signal processing module connects the signal input part of wireless transport module;Wireless transport module has wireless
Signal output part, realize that remote signal carries, form the monitoring automatically of air cleaner pressure at two ends and remote signal passes
Defeated structure;Therefore, it is possible to solve existing manual detection air cleaner difficulty, testing result crow paulin ship human factor shadow
Ring so that inaccurate problem, there is the behaviour in service of remote wireless monitoring filter element, be easy to air cleaner
Detection and timely change filter element, ensure the beneficial effects such as IAQ.
2nd, the utility model passes through monitoring filtering element behaviour in service, changes poor filtration effect or the filter without filter effect in time
Core, is effectively ensured indoor air quality, beneficially the health of human body;Change invalid filter core in time, can effectively reduce
Airduct resistance, reduces fan energy consumption further, has the effect of energy-saving and emission-reduction.
3rd, the utility model uses the mode of long-range automatic monitoring, it is not necessary to technician to scene can realize to air-conditioning mistake
Filter is evaluated and tested, and decreases labor workload, it is not necessary to installs equipment troublesomely on the spot and tests, significantly
Facilitate the operation management of property.
4th, the utility model can use independent current source, and supports that data are wirelessly transferred, inconvenient wiring occasion,
The occasions such as field circuit condition is limited, Power Supplies Condition finite sum limited space all can conveniently use, and was especially building
In the environment of building transformation, reliable with greater need for this independence, wireless easily can monitoring device.
5th, the utility model simple in construction, installs and uses relatively simple, and operating power consumption is low, good reliability, and cost becomes
This is low, is suitable for coming into operation in a large number.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure diagram that the utility model applies in air-conditioning system.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Specific embodiment 1:
With reference to Fig. 1, the present embodiment includes air cleaner, pressure differential detection unit the 1st, signal processing module the 2nd, wireless biography
Defeated module 3 and power supply 5, pressure differential detection unit the 1st, signal processing module the 2nd, wireless transport module 3 and power supply control electricity
Power supply 5 input on road 4 connects the output of power supply 5;Air cleaner is installed in ventilation shaft, pressure differential detection
The detection 102 of unit 1 is arranged on the front and back ends of air cleaner, and the signal output part of pressure differential detection unit 1 is even
Connecing the signal input part of signal processing module 2, the signal output part of signal processing module 2 connects wireless transport module 3
Signal input part;Wireless transport module 3 has wireless signal output, realizes that remote signal carries, and forms air
Automatically monitoring and the remote signal transmission structure of filter pressure at two ends.
Seeing figures.1.and.2, in the present embodiment, pressure differential detection unit 1 includes differential pressure pickup 101 and two detections
102, described detection 102 is arranged in ventilation duct before and after filter in pipeline, and the signal of detection 102 is defeated
Going out end and connecting the signal input part of differential pressure pickup 101, the signal output part of differential pressure pickup 101 connects signal transacting
The signal input part of module 2.Signal processing module 2 is connected with power control circuit 4, and signal processing module 2 includes
Signals collecting amplifying circuit the 201st, central processing unit 202 and data storage 203;Signals collecting amplifying circuit 201
Signal input part connect the signal output part of pressure differential detection unit 1, signal output part connects central processing unit 202
Signal input part, central processing unit 202 has analog-to-digital conversion unit and digital signal output end, and this data signal is defeated
Go out end and connect the signal input part of data storage 203 and the signal input part of wireless transport module 3;Power supply control electricity
The control signal output on road 4 connects signals collecting amplifying circuit 201 and the power supply 5 of data storage 203 controls end,
Form the power supplyl controlling structure of signals collecting amplifying circuit 201 and data storage 203.
The preferred power supply of the present embodiment 5 is independent movable power source 5, is particularly well-suited to the occasion of inconvenient wiring
Limited with installation site circuit condition occasion;Data storage 203 chip is moveable safe digital card SD
Card, it has a safety and stability, low cost, and the feature such as easy to assembly;Wireless transport module 3 choose CC1101 without
Line transmits chip, and the signal data of reception can be sent by wireless transport module 3 by wireless, wireless at this
In the range of signal covers, all can realize the remote transmission of data, it is achieved the long-range monitoring of air cleaner behaviour in service,
Data are provided to support for changing in time of filter element;Central processing unit 202 is MSP430F417 for TI company model
Equipment;Central processing unit 202 will gather the analog signal after amplifying circuit amplifies and be converted to data signal, and to turning
Data signal after changing is filtered processing, and obtains stable data-signal, is sent to data storage 203 and preserves number
Launch data according to being simultaneously communicating to wireless transport module 3.
Operation principle of the present utility model is:
With reference to Fig. 2, the utility model is arranged in air-conditioning system, and detection 102 is separately positioned on air filtration
In the pipeline of device both sides, during the work of air-conditioning system, open new wind regulation valve 11 and return air regulation valve 12, adjust
After good air quantity ratio, air draught sequentially passes through filter the 13rd, heat exchange coil 14, sends finally by blower fan 15,
Air is after filter, and pressure difference data is intercepted and captured in detection 102.
With reference to Fig. 1, after detection 102 acquisition pressure difference data, the pressure at both sides physical values recording is sent to pressure reduction and passes
Sensor 101, differential pressure pickup 101 is converted to the signal of telecommunication by detecting a physical signalling for 102 measurements, i.e. obtains pressure reduction
Analog signal;Signals collecting amplifying circuit 201 gathers the analog signal of differential pressure pickup 101 and amplifies analog signal
After be sent to central processing unit 202;Central processing unit 202 possesses analog-to-digital conversion unit and signal filtering function, by mould
Intend signal and be converted to data signal, and be filtered to data signal processing;Data storage 203 signal input part leads to
Cross holding wire and connect one of central processing unit 202 signal output part, preserve the signal data from central processing unit 202;
Power control circuit 4 is powered control to signals collecting amplifying circuit 201 and data storage 203, and its signal is defeated
Entering end and being connected the I/O interface of central processing unit 202 by holding wire, central processing unit 202 is sent by I/O interface
Control instruction, the relevant action of control power control circuit 4;Wireless transport module 3 is by signal data in a wireless form
Carrying out remote transmission, its signal input part connects one of signal output part of central processing unit 202, and signal output part is
Wireless signal exports, and all can realize being wirelessly transferred of signal data in this wireless signal coverage;Power supply 5 is pressure
Difference detector unit the 1st, signal processing module the 2nd, wireless transport module 3 and power control circuit 4 are powered;Central authorities are processed
Device 202 i.e. carries out data storage to data signal after being filtered processing, and passes the data signal that filtering is processed simultaneously
Delivering to wireless transport module 3, data are launched by wireless transport module 3, it is achieved the remote transmission of data.
In use, if the pressure difference that device records measures 2 times of pressure difference more than or equal to brand-new filter,
I.e. can determine whether that filter needs to change.
Fill above in conjunction with the air cleaner pressure differential detection to the utility model band remote transmission function for the drawings and Examples
Put and made further detailed description, but the utility model is not limited to above-described embodiment, without departing from the utility model
The various replacement made under design or deformation, belong to the claimed scope of the utility model.