CN208934986U - A kind of blower unit energy efficiency testing device - Google Patents
A kind of blower unit energy efficiency testing device Download PDFInfo
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- CN208934986U CN208934986U CN201821564799.7U CN201821564799U CN208934986U CN 208934986 U CN208934986 U CN 208934986U CN 201821564799 U CN201821564799 U CN 201821564799U CN 208934986 U CN208934986 U CN 208934986U
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- Prior art keywords
- interface
- groove
- blower unit
- energy efficiency
- testing device
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Abstract
The utility model relates to a kind of blower unit energy efficiency testing devices, belong to blower unit efficiency test technical field, including fan parameter measuring instrument and electrical parameter Acquisition Instrument, one jiao of electrical parameter Acquisition Instrument upper surface is equipped with the first groove, RS485 connector and power connection are rotatably connected in first groove, the RS485 connector and power connection are integrally formed, first groove floor is equipped with the first aperture passed through for RS485 tag data line and power connection line, the lower end surface of fan parameter measuring instrument and first groove relative position are equipped with the second groove, RS485 interface and power interface are equipped in second groove, the RS485 interface and power interface are integrally formed, second groove floor is equipped with the second aperture passed through for RS485 interface data wire and power interface line.
Description
Technical field
The utility model relates to blower unit efficiency test technical fields more particularly to a kind of blower unit efficiency test to fill
It sets.
Background technique
Currently, the prior art commonly used in the trade is such that blower unit is one of energy consumption device of enterprise-essential,
The blower of many enterprises is in the state of uneconomical operation in actual operation, results in a large amount of energy waste.Therefore it tests
The power consumption state of fan operation can not only help enterprise to grasp the working performance state of blower, can also grasp the energy of blower
Water consumption is flat, carries out the reducing energy consumption of blower unit for enterprise and provides foundation.However, not dedicated to the efficiency test of blower at present
Equipment, most of enterprise record fan operation state parameter using scattered instrument, then carry out summarizing calculating, obtain blowing machine
Efficiency.Not only working efficiency is low for this test mode, but also test result accuracy is poor.
Existing blower unit energy efficiency testing device includes fan parameter measuring instrument and electrical parameter Acquisition Instrument, such as fan parameter
Measuring instrument and electrical parameter Acquisition Instrument independently, need to connect with the mains respectively with serial port data line and connect with computer, plug wire ratio
It is more chaotic.And fan parameter measuring instrument and electrical parameter Acquisition Instrument are wholely set why increase the volume of whole device, to carry strap
Inconvenience is carried out.
Utility model content
The purpose of this utility model is to provide a kind of blower unit energy efficiency testing devices, have installation simply and easily
Advantage.
The above-mentioned purpose of the utility model has the technical scheme that
A kind of blower unit energy efficiency testing device, including fan parameter measuring instrument and electrical parameter Acquisition Instrument, the electrical parameter
One jiao of Acquisition Instrument upper surface is equipped with the first groove, is rotatably connected to RS485 connector and power connection, institute in first groove
It states RS485 connector and power connection is integrally formed, first groove floor is equipped with for RS485 tag data line and power connection
The first aperture that line passes through, the lower end surface of fan parameter measuring instrument and first groove relative position are equipped with the second groove, institute
It states and is equipped with RS485 interface and power interface in the second groove, the RS485 interface and power interface are integrally formed, and described second
Groove floor is equipped with the second aperture passed through for RS485 interface data wire and power interface line.
Further, RS485 connector both ends are equipped with rotation axis, the rotation axis two sidewalls opposite with the first groove
Rotation connection.
Further, the opposite two sidewalls bottom of the fan parameter measuring instrument is equipped with hook, the electrical parameter Acquisition Instrument
Corresponding two sides, which are measured, with the fan parameter is equipped with the link being clamped with the hook.
Further, the fan parameter measuring instrument one side is equipped with total pressure sensor interface, static pressure transducer interface, electricity
The total interface in source, switch, first state lamp group and zigbee antenna, the total pressure sensor interface, static pressure transducer interface, power supply
Total interface, switch, second source state lamp group, communications status lamp and zigbee antenna are connect with MAX 485 respectively, described
MAX485 chip is connect with the RS485 interface.
Further, the power interface is connect with the MAX485 chip.
Further, the electrical parameter Acquisition Instrument one side is equipped with multiple electrical parameter interfaces, digital serial port and the second state
Lamp group, the electrical parameter interface, digital serial port and the second status lamp group are connect with STM32 central processing unit respectively.
Further, the RS485 connector and power connection are connect with STM32 central processing unit respectively.
Further, fan parameter measuring instrument side both ends and electrical parameter Acquisition Instrument side both ends are equipped with handle.
In conclusion the utility model has the following beneficial effects:
1, collected data are delivered in electrical parameter Acquisition Instrument by fan parameter measuring instrument by RS485 interface
In STM32 central processing unit, and power supply is conveyed to by STM32 central processing unit by power interface, due to RS485 interface and electricity
The use for connecting to reduce data line of source interface and RS485 connector and power connection, keeps the wiring of device more convenient,
And fan parameter measuring instrument is placed on electrical parameter Acquisition Instrument, is fixed by opening button, is made the placement of fan parameter measuring instrument more
Add stabilization, avoids falling or moving that RS485 and power connection folding is bad.
2, when not in use, RS485 connector and power connection turn in groove, can avoid damage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment fan parameter measuring instrument and the splicing of electrical parameter Acquisition Instrument；
Fig. 2 is the structural schematic diagram of the utility model embodiment electrical parameter Acquisition Instrument；
Fig. 3 is the structural schematic diagram of the utility model embodiment fan parameter measuring instrument；
Fig. 4 is each device connection block diagram of the utility model embodiment blower unit energy efficiency testing device.
Appended drawing reference: 1, fan parameter measuring instrument；2, electrical parameter Acquisition Instrument；3, the first groove；4, RS485 connector；5, electric
Source connector；6, the second groove；7, RS485 interface；8, power interface；9, rotation axis；10, it links up with；11, link；12, total pressure senses
Device interface；13, static pressure transducer interface；14, the total interface of power supply；15, it switchs；16, first state lamp group；17, zigbee days
Line；18, the second state lamp group；19, electrical parameter interface；20, digital serial port；21, handle.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
A kind of blower unit energy efficiency testing device, as shown in Figure 1, including fan parameter measuring instrument 1 and electrical parameter Acquisition Instrument
2.Total pressure sensor interface 12, static pressure transducer interface 13, the total interface of power supply is distributed in the one side of fan parameter measuring instrument 1
14, switch 15, first state lamp group 16 and zigbee antenna 17.2 one side of electrical parameter Acquisition Instrument is equipped with multiple electrical parameter interfaces
19, digital serial port 20 and the second state lamp group 18.The side both ends of fan parameter measuring instrument 1 and electrical parameter Acquisition Instrument 2 are respectively provided with
There is handle 21, in order to carry.The opposite two sidewalls bottom of fan parameter measuring instrument 1 be equipped with hook 10, electrical parameter Acquisition Instrument 2 with
Fan parameter measures corresponding two sides and is equipped with the link 11 being clamped with hook 10.
As shown in Fig. 2, one jiao of 2 upper surface of electrical parameter Acquisition Instrument is equipped with the first groove 3, it is rotatably connected in the first groove 3
RS485 connector 4 and power connection 5, RS485 connector 4 and power connection 5 are integrally formed.The both ends of RS485 connector 4 are integrally formed
There is rotation axis 9, rotation axis 9 and 3 side wall of the first groove are rotatablely connected.
As shown in figure 3, the lower end surface of fan parameter measuring instrument 1 and 3 relative position of the first groove are equipped with the second groove 6, the
RS485 interface 7 and power interface 8 are equipped in two grooves 6, RS485 interface 7 and power interface 8 are integrally formed, 6 bottom of the second groove
Face is equipped with the second aperture passed through for 7 data line of RS485 interface and 8 line of power interface.
As shown in figure 4, the total interface 14 of power supply, power interface 8, total pressure sensor interface 12, static pressure transducer interface 13, opening
It closes the 15, first power supply status lamp group and zigbee antenna 17 is connect with 485 chip of MAX respectively, MAX485 chip connects with RS485
Mouth 7 connects.RS485 connector 4, power connection 5, electrical parameter interface 19, digital serial port 20 and the second state lamp group 18 respectively with
The connection of STM32 central processing unit.The data of final 1 acquisition of fan parameter measuring instrument send data to electricity by RS485 interface 7
In STM32 central processing unit in parameter acquisition instrument 2.
Application method, rotates RS485 connector 4 and power connection 5 goes out groove to vertical state, by fan parameter measuring instrument 1
It is placed on electrical parameter Acquisition Instrument 2, so that RS485 connector 4 and power connection 5 is connected with RS485 interface 7 and power interface 8, so
Link 11 is buckled in afterwards fixed on hook 10.The acquisition of wind pressure parameter and environmental parameter:
The measurement of wind pressure parameter mainly measures the pressure of Fan pipeline, as long as accurately acquiring static pressure and total pressure
Parameter can obtain corresponding wind speed and air quantity according to formula, therefore be directed to the actual conditions of blower, and the present apparatus uses skin support
The mode of pipe tests dynamic pressure.
For Pitot tube using 90 ° of the concentric stainless steel tube of bilayer, open end is identical as inner tube, and the aperture of side is that static pressure is defeated
Enter hole, two output ends of Pitot tube there are two interfaces of total pressure sensor interface and static pressure transducer interface, are respectively connected to two absolutely
To pressure sensor, directly the total pressure of pipeline and static pressure are measured, difference is air duct dynamic pressure.Two sensors are
Honeywell pressure sensor SCX150, the transducer range are 0~105psi, and output area is 0~90mV.Two sensors
Using identical amplification conditioning circuit, and 16 ADC channels of two-way for making full use of STM32 included turn pressure signal
It changes.
By taking total pressure measures as an example, the differential amplifier circuit of high input impedance, low output impedance is devised, as shown in Figure 4.It passes
Output end C, D of sensor are connected to the input terminal of differential operational amplifier, since amplifier A1, A2 use the fortune of same performance
It puts, difference channel is formed by amplifier A3, can cancel out each other common mode output voltage and drift voltage, so the amplifying circuit
With very strong common mode inhibition capacity, lesser output voltage and very high differential mode voltage gain.The transmission function of the circuit are as follows:
Take R3=R4=1.8K Ω, R1=95 Ω.R2 is 10 Ω potentiometers, for finely tuning amplification factor.Sensor is through believing
After the processing of number conditioning circuit, output meets the full scale input range (0~3.3V) of STM32 analog-digital converter, and wherein R5 is used for
Adjust the bias voltage of entire amplifying circuit.Before being sent into ADC, signal also passes through the Butterworth low pass wave an of second order
Device is filtered high-frequency interferencing signal.
Pressure sensor is very sensitive to the variation of pressure, and when measuring differential pressure in unstable air-flow, measured value may
It can beat unstable, therefore the present apparatus has carried out the average treatment of digital filtering, following formula to the data measured using software
It is shown.
In formula, PdPressure at-measuring point, Pa；
PiThe measured value of-i-th, Pa；
N-population of measured values.
New value P is measured every timenWhen, n continuous measured values will reject first measured value, and subsequent n-1 is measured
Value is successively past to be pushed forward, i.e. Pi=Pi+1, wherein i is got (n-1) from 1, and new measured value supplement is n-th of measured value Pn, then sum
It is average again.As shown from the above formula, the bigger show value of n is more steady.It is this to make measured value tend to flat by software data processing
Homogenizing can effectively reduce instantaneous measure caused by instant airflow bounce and change excessive influence, make pressure measurement knot
Fruit keeps stablizing.
Claims (8)
1. a kind of blower unit energy efficiency testing device, including fan parameter measuring instrument (1) and electrical parameter Acquisition Instrument (2), feature
It is, one jiao of electrical parameter Acquisition Instrument (2) upper surface is equipped with the first groove (3), is rotatably connected in first groove (3)
RS485 connector (4) and power connection (5), the RS485 connector (4) and power connection (5) are integrally formed, first groove
(3) bottom surface is equipped with the first aperture passed through for RS485 connector (4) data line and power connection (5) line, fan parameter measuring instrument
(1) lower end surface and the first groove (3) relative position is equipped with the second groove (6), is equipped in second groove (6)
RS485 interface (7) and power interface (8), the RS485 interface (7) and power interface (8) are integrally formed, second groove
(6) bottom surface is equipped with the second aperture passed through for RS485 interface (7) data line and power interface (8) line.
2. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the RS485 connector (4)
Both ends are equipped with rotation axis (9), and the rotation axis (9) two sidewalls opposite with the first groove (3) are rotatablely connected.
3. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the fan parameter measurement
The opposite two sidewalls bottom of instrument (1) is equipped with hook (10), and the electrical parameter Acquisition Instrument (2) is corresponding with fan parameter measurement
Two sides are equipped with the link (11) with hook (10) clamping.
4. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the fan parameter measurement
Instrument (1) one side be equipped with total pressure sensor interface (12), static pressure transducer interface (13), the total interface of power supply (14), switch (15),
First state lamp group (16) and zigbee antenna (17), the total pressure sensor interface (12), static pressure transducer interface (13), electricity
The total interface in source (14), switch (15), second source state lamp group, communications status lamp and zigbee antenna (17) respectively with MAX
485 connections, the MAX485 chip are connect with the RS485 interface (7).
5. a kind of blower unit energy efficiency testing device according to claim 4, which is characterized in that the power interface (8)
It is connect with the MAX485 chip.
6. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the electrical parameter Acquisition Instrument
(2) one side is equipped with multiple electrical parameter interfaces (19), digital serial port (20) and the second state lamp group (18), the electrical parameter interface
(19), digital serial port (20) and the second state lamp group (18) are connect with STM32 central processing unit respectively.
7. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the RS485 connector (4)
It is connect respectively with STM32 central processing unit with power connection (5).
8. a kind of blower unit energy efficiency testing device according to claim 1, which is characterized in that the fan parameter measurement
Instrument (1) side both ends and electrical parameter Acquisition Instrument (2) side both ends are equipped with handle (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564799.7U CN208934986U (en) | 2018-09-25 | 2018-09-25 | A kind of blower unit energy efficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564799.7U CN208934986U (en) | 2018-09-25 | 2018-09-25 | A kind of blower unit energy efficiency testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208934986U true CN208934986U (en) | 2019-06-04 |
Family
ID=66722283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821564799.7U Expired - Fee Related CN208934986U (en) | 2018-09-25 | 2018-09-25 | A kind of blower unit energy efficiency testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208934986U (en) |
-
2018
- 2018-09-25 CN CN201821564799.7U patent/CN208934986U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 Termination date: 20190925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |