CN110439841A - Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation - Google Patents
Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation Download PDFInfo
- Publication number
- CN110439841A CN110439841A CN201910763398.7A CN201910763398A CN110439841A CN 110439841 A CN110439841 A CN 110439841A CN 201910763398 A CN201910763398 A CN 201910763398A CN 110439841 A CN110439841 A CN 110439841A
- Authority
- CN
- China
- Prior art keywords
- wind speed
- blower
- air flow
- flow system
- facade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 239000012774 insulation material Substances 0.000 title claims abstract description 17
- 230000006641 stabilisation Effects 0.000 title claims abstract description 15
- 238000011105 stabilization Methods 0.000 title claims abstract description 15
- 238000004088 simulation Methods 0.000 title claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000009826 distribution Methods 0.000 claims description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of stabilization air flow systems of external-wall heat-insulation material combustion simulation test comprising blower, air monitoring unit and blast velocity control unit；Air monitoring unit is used to monitor the wind speed of predetermined position；Blast velocity control unit is used to receive the control electric signal of air monitoring unit transmission, and the revolving speed of blower is controlled according to the control signal.Above-mentioned predeterminated position is disposed proximate to the windward side of facade.Using when, air monitoring unit monitors predetermined position wind speed, monitor the actual wind speed at facade, and control electric signal is converted into wind speed and is sent to blast velocity control unit, blast velocity control unit controls blower according to above-mentioned control electric signal, and the wind speed at facade is made to reach test requirements document.Obviously, which can adjust the revolving speed of blower according to the actual wind speed at facade, to make the wind speed at facade up to stability number, meet test requirements document.
Description
Technical field
The present invention relates to Mechanical Industry Technology fields, more specifically to one kind for external-wall heat-insulation material burning mould
The stabilization air flow system of quasi- test.
Background technique
For the fire safety performance of scientific evaluation external-wall heat-insulation material, external-wall heat-insulation material combustion simulation examination need to be carried out
It tests, the facade of specific setting simulation, and external-wall heat-insulation material is made to burn on facade.Facade is by phase
Even and orthogonal main wall and secondary wall are constituted, the wide 3.0m of main wall, high 9.0m, the wide 2.0m of secondary wall, high 9.0m, flame front when burning
Product is spent up to 45 ㎡, flame temperature up to 600 degree -800, the flame when external-wall heat-insulation material is fired to the high 9m in the top of experimental provision
Height can reach 12m.As above test carries out in outdoor spacious open place, but natural wind wind speed is unstable in outdoor environment
Fixed and uncontrollable, it is difficult to reach the wind speed requirement of this test: experiment wall overall surface is required to reach by uniformly distributed wind speed
To stable two kinds of wind speed 5m/s and 10m/s.
In conclusion making facade surface by equal how in outdoor carry out external-wall heat-insulation material combustion experiment
Even stable wind speed reaches the stabilization wind speed requirement of simulation test, is those skilled in the art's urgent problem to be solved.
Summary of the invention
In view of this, the present invention provides a kind of stabilization air flow system for the test of external-wall heat-insulation material combustion simulation,
The revolving speed of blower can be adjusted according to the actual wind speed at facade, so that reaching the wind speed at facade stablizes number
Value, meets test requirements document.
To achieve the above object, the invention provides the following technical scheme:
A kind of stabilization air flow system for the test of external-wall heat-insulation material combustion simulation, comprising:
Blower, the blower setting on the support frame, are used to dry to facade；
Air monitoring unit, for monitoring the wind speed of predetermined position；
Blast velocity control unit, the control electric signal sent for receiving the air monitoring unit, and according to control electricity
Signal controls the blower.
Preferably, in aforementioned stable air flow system, the blower be it is multiple, each blower is set gradually along the vertical direction
On support frame as described above.
Preferably, in aforementioned stable air flow system, the air monitoring unit includes:
Air monitoring stake, the air monitoring stake are arranged between the facade and the blower.
Preferably, in aforementioned stable air flow system, two wind speed transducers, the two difference are equipped in the wind speed measurement stake
It is transferred to blast velocity control unit respectively for acquiring away from the wind speed at ground 1m, 4m, then after being converted into control electric signal with wind speed.
Preferably, in aforementioned stable air flow system, the blast velocity control unit includes:
Power distribution isolator, the power distribution isolator are used to receive the control electric signal that the air monitoring unit is sent；
Fan frequency converter, the fan frequency converter are connected with the power distribution isolator, for according to the air monitoring list
The revolving speed of blower described in the control electric signal adjust automatically that member is sent.
Preferably, in aforementioned stable air flow system, the power distribution isolator be it is multiple, and each power distribution isolator respectively with
The different fan frequency converters is connected.
Preferably, in aforementioned stable air flow system, support frame as described above includes:
Pedestal；
The main body rack of assembly on the base, the blower are fixed on the main body rack.
Preferably, in aforementioned stable air flow system, the pedestal is equipped with universal wheel, and the universal wheel is with locking dress
It sets.
The present invention provides a kind of stabilization air flow system of external-wall heat-insulation material combustion simulation test comprising blower, wind speed
Monitoring unit and blast velocity control unit；Air monitoring unit is used to monitor the wind speed of predetermined position；Blast velocity control unit is used for
The control electric signal that air monitoring unit is sent is received, and controls the revolving speed of blower according to the control signal.Above-mentioned predeterminated position
It is disposed proximate to the windward side of facade.
When using stable air flow system as above, air monitoring unit monitors predetermined position wind speed, that is, monitors to build
Actual wind speed at alien invasion, and control electric signal is converted into wind speed and is sent to blast velocity control unit, blast velocity control unit root
Blower is controlled according to above-mentioned control electric signal, the wind speed at facade is made to reach test requirements document.
As above the principle for stablizing air flow system is as follows: the stabilization wind speed that facade uniformly requires in testing ground is by certainly
Right wind superposition manual intervention wind (i.e. blower air-supply) is realized, that is, does not reach requirement wind when testing the natural wind speed that metope is subject to
Blower is blown automatically according to wind speed difference when fast, and when natural wind speed reaches requirement wind speed, blower reduces air output automatically, to reach
To experiment wall surface by the effect for stablizing wind speed；According to fan characteristic, " air quantity, wind speed and the revolving speed of blower are directly proportional passes
System ", the revolving speed of blower is bigger, and air quantity, the wind speed of blower will be bigger, so this programme realizes control by control rotation speed of fan
The wind speed of blower air-supply.
Obviously, the stabilization air flow system as above for the test of external-wall heat-insulation material combustion simulation can be according to facade
The actual wind speed at place adjusts the revolving speed of blower, to make the wind speed at facade up to stability number, meets test requirements document.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the control principle drawing of stable air flow system provided in an embodiment of the present invention；
Fig. 2 is the overlooking structure diagram of support frame provided in an embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of A-A in Fig. 2；
Fig. 4 is the schematic cross-sectional view of B-B in Fig. 2；
Fig. 5 is the installation diagram of support frame provided in an embodiment of the present invention and blower；
Fig. 6 is stable air flow system provided in an embodiment of the present invention and structural schematic diagram；
Wherein, in Fig. 1-Fig. 6:
Wind speed transducer ST；Fan frequency converter BP；Power distribution isolator SY3, SY2；Support frame 101；Pedestal 111；Main body branch
Frame 112；Drawstring 113；Blower 102；Air monitoring stake 103.
Specific embodiment
The embodiment of the invention discloses a kind of stabilization air flow system for the test of external-wall heat-insulation material combustion simulation, energy
Enough actual wind speeds according at facade adjust the revolving speed of blower, so that reaching the wind speed at facade stablizes number
Value, meets test requirements document.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 3 is please referred to, the embodiment of the present invention provides a kind of stabilization wind speed of external-wall heat-insulation material combustion simulation test
Device comprising blower 102, air monitoring unit and blast velocity control unit；Air monitoring unit is for monitoring predetermined position
Wind speed；Blast velocity control unit is used to receive the control electric signal of air monitoring unit transmission, and is controlled according to the control signal
The revolving speed of blower 102.Above-mentioned predeterminated position is disposed proximate to the windward side of facade.The structure of facade with it is existing
Technology is identical, including main wall and secondary wall.
When using stable air flow system as above, air monitoring unit monitors predetermined position wind speed, that is, monitors to build
Actual wind speed at alien invasion, and control electric signal is converted into wind speed and is sent to blast velocity control unit, blast velocity control unit root
Blower 102 is controlled according to above-mentioned control electric signal, the wind speed at facade is made to reach test requirements document.
As above the principle for stablizing air flow system is as follows: the stabilization wind speed that facade uniformly requires in testing ground is by certainly
Right wind superposition manual intervention wind (i.e. blower 102 is blown) is realized, that is, wants when the natural wind speed that experiment metope is subject to is not achieved
Blower 102 is blown automatically according to wind speed difference when seeking wind speed, and when natural wind speed reaches requirement wind speed, blower 102 is reduced automatically and sent
Air quantity is stablized wind speed to achieve the effect that test wall surface；According to 102 characteristic of blower " air quantity of blower 102, wind speed and
Revolving speed is proportional ", the revolving speed of blower 102 is bigger, and air quantity, the wind speed of blower 102 will be bigger, so this programme passes through
It controls 102 revolving speed of blower and realizes the wind speed that control blower 102 is blown.
Obviously, the stabilization air flow system as above for the test of external-wall heat-insulation material combustion simulation can be according to facade
The actual wind speed at place adjusts the revolving speed of blower 102, to make the wind speed at facade up to stability number, meets test and wants
It asks.
Specifically, in aforementioned stable air flow system, blower 102 be it is multiple, each blower 102 is successively set on along the vertical direction
On support frame 101.More specifically, blower 102 is set as 5, and 102 uniform intervals 1.9m of each blower is fixed on support frame 101
On.
Air monitoring unit includes air monitoring stake 103, and air monitoring stake 103 is arranged in facade and blower 102
Between.Specifically, (front surface of facade refers to main wall to front surface 1m of the air monitoring stake 103 apart from facade
The upper surface towards secondary wall side), the side outside 0.3m away from facade, is the air monitoring with thermal radiation resistant function
Stake 103, high 4.5m.
Be equipped with two wind speed transducer ST in wind speed measurement stake, two wind speed transducer ST be respectively used to acquisition away from ground 1m,
Wind speed at 4m, then it is transferred to blast velocity control unit respectively in the form of wind speed is converted into control electric signal.
As above stablize in air flow system, blast velocity control unit includes:
Power distribution isolator, power distribution isolator are used to receive the control electric signal of air monitoring unit transmission；
Fan frequency converter BP, fan frequency converter BP are connected with above-mentioned power distribution isolator, for being sent out according to air monitoring unit
The revolving speed of the control electric signal adjust automatically blower 102 sent.
Power distribution isolator is multiple, and each power distribution isolator is connected from different fan frequency converter BP respectively.Specifically, matching
Electric isolator is 2, and the two is respectively used to receive the control electric signal that two wind speed transducer ST are sent, wherein with for adopting
Collect the corresponding power distribution isolator of wind speed transducer ST away from wind speed at the 4m of ground, three blowers for controlling and being located above
102 three fan frequency converter BP being respectively cooperating with；Match with for acquiring away from the wind speed transducer ST of wind speed is corresponding at the 1m of ground
Electric isolator, for controlling two fan frequency converter BP being respectively cooperating with underlying two blowers 102, as shown in Figure 1.
It tests metope (i.e. above-mentioned facade) lower half portion and acquires in application, power distribution isolator SY2 is responsible for receiving
Wind velocity signal the 2 Fans frequency converter B P positioned at lower half are distributed to relation of equal quantity, by fan frequency converter BP according to wind speed
The revolving speed of 2 Fans 102 of the control electric signal adjust automatically lower half that monitoring unit is sent, to control under experiment surface
Actual wind speed suffered by half part
Power distribution isolator SY3 is responsible for the wind velocity signal that reception experiment metope top half acquisition comes and is distributed to relation of equal quantity
3 Fans frequency converter B P of the blower fan group upper half, the control electric signal sent by fan frequency converter BP according to air monitoring unit
The revolving speed of adjust automatically blower 102, to control actual wind speed suffered by experiment surface top half.
Preferably, in aforementioned stable air flow system, support frame 101 is set as including pedestal 111 and being assemblied on pedestal 111
Main body rack 112, blower 102 is fixed on main body rack 112.In the program, support frame 101 divides for pedestal 111 and main body
112 two parts of bracket, the two can manufacture respectively, reduce production difficulty, transport, store after can also mutually splitting the two, section
Save space.
Specifically, blower 102 is set as being bolted on main body rack 112, main body rack 112 and pedestal 111
Using hinge engaging structure, installation convenient for safeguarding, and compact overall structure stability is good.In order to improve main body rack 112 and bottom
The assembly reliability of seat 111, support frame 101 are set as further including drawstring 113, and main body rack 112 is fixed in one end of drawstring 113
Top, the other end is fixed on pedestal 111, and drawstring 113 is in tension.
Preferably, in aforementioned stable air flow system, pedestal 111 is equipped with universal wheel, and universal wheel has locking device, with root
Any mobile package unit is required according to different wind directions, to change wind direction.
Specifically, the parameter of blower 102 is as follows in aforementioned stable air flow system: power of motor 18.5kw, revolving speed 1450r/
Min, wind pressure 1490-2032pa, exhaust air rate 15826-29344m/h, certainly, according to the actual wind speed of external environment, blower 102
Parameter may also be configured to other values, the present embodiment does not limit.
Stable air flow system provided in this embodiment at outdoor is away from ignition point 5m, kindling face height 10m, width 3.5m with
In interior natural environment, it is entirely capable of output directional and the continuously adjustable wind for stablizing wind speed 4m/s-10m/s, blower 102 and support frame
101 can bear 250 degree of continuous heat-resisting operations in 4 hours.In addition in the stable air flow system, wind-speed sample and electrical control implementation are closed
Ring control, has energy conservation, blast velocity control accurate, the fast advantage of reaction speed, and the test for stablizing wind speed is required suitable for indoor and outdoor
Occasion.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of stabilization air flow system for the test of external-wall heat-insulation material combustion simulation characterized by comprising
Blower, the blower setting on the support frame, are used to dry to facade；
Air monitoring unit, for monitoring the wind speed of predetermined position；
Blast velocity control unit, the control electric signal sent for receiving the air monitoring unit, and according to the control electric signal
Control the blower.
2. stable air flow system according to claim 1, which is characterized in that the blower is multiple, each blower edge
Vertical direction is successively set on support frame as described above.
3. stable air flow system according to claim 1, which is characterized in that the air monitoring unit includes:
Air monitoring stake, the air monitoring stake are arranged between the facade and the blower.
4. stable air flow system according to claim 3, which is characterized in that be equipped with two wind speed in the wind speed measurement stake
Transmitter, the two is respectively used to acquire the wind speed away from ground 1m, 4m, then transmits respectively after being converted into control electric signal with wind speed
Give blast velocity control unit.
5. stable air flow system according to claim 1, which is characterized in that the blast velocity control unit includes:
Power distribution isolator, the power distribution isolator are used to receive the control electric signal that the air monitoring unit is sent；
Fan frequency converter, the fan frequency converter are connected with the power distribution isolator, for being sent out according to the air monitoring unit
The revolving speed of blower described in the control electric signal adjust automatically sent.
6. stable air flow system according to claim 5, which is characterized in that the power distribution isolator is multiple, and each
Power distribution isolator is connected from the different fan frequency converters respectively.
7. stable air flow system according to claim 1, which is characterized in that support frame as described above includes:
Pedestal；
The main body rack of assembly on the base, the blower are fixed on the main body rack.
8. stable air flow system according to claim 7, which is characterized in that the pedestal is equipped with universal wheel, and described ten thousand
Locking device is had to wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910763398.7A CN110439841A (en) | 2019-08-19 | 2019-08-19 | Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910763398.7A CN110439841A (en) | 2019-08-19 | 2019-08-19 | Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439841A true CN110439841A (en) | 2019-11-12 |
Family
ID=68436266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910763398.7A Pending CN110439841A (en) | 2019-08-19 | 2019-08-19 | Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110439841A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04252898A (en) * | 1991-01-28 | 1992-09-08 | Fujitsu Ltd | Fan rotation monitoring circuit |
| CN202057708U (en) * | 2011-04-27 | 2011-11-30 | 重庆迪洋仪表有限责任公司 | Power distribution isolator |
| CN106526069A (en) * | 2016-12-22 | 2017-03-22 | 公安部四川消防研究所 | Environment wind field simulation unit and environment wind field simulation system applied to fireproof performance test of building exterior wall |
| CN206349646U (en) * | 2017-01-13 | 2017-07-21 | 北京兴达奇热工控制设备有限公司 | A kind of distribution isolating device |
| CN108320650A (en) * | 2018-04-23 | 2018-07-24 | 中国科学技术大学 | A kind of lower ship open top cabin fire test simulator of ambient wind effect |
| CN209145939U (en) * | 2018-10-26 | 2019-07-23 | 广州科劳斯实验室仪器设备有限公司 | A kind of multi-joint blower fan control system |
-
2019
- 2019-08-19 CN CN201910763398.7A patent/CN110439841A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04252898A (en) * | 1991-01-28 | 1992-09-08 | Fujitsu Ltd | Fan rotation monitoring circuit |
| CN202057708U (en) * | 2011-04-27 | 2011-11-30 | 重庆迪洋仪表有限责任公司 | Power distribution isolator |
| CN106526069A (en) * | 2016-12-22 | 2017-03-22 | 公安部四川消防研究所 | Environment wind field simulation unit and environment wind field simulation system applied to fireproof performance test of building exterior wall |
| CN206349646U (en) * | 2017-01-13 | 2017-07-21 | 北京兴达奇热工控制设备有限公司 | A kind of distribution isolating device |
| CN108320650A (en) * | 2018-04-23 | 2018-07-24 | 中国科学技术大学 | A kind of lower ship open top cabin fire test simulator of ambient wind effect |
| CN209145939U (en) * | 2018-10-26 | 2019-07-23 | 广州科劳斯实验室仪器设备有限公司 | A kind of multi-joint blower fan control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9683554B2 (en) | Acoustic noise monitoring system for a wind turbine | |
| EP3193013B1 (en) | Anti-icing and deicing method and device for high-power wind turbine blades | |
| CN202204680U (en) | All fresh air handling system for aircraft engine performance testing device | |
| WO2021230188A1 (en) | Indoor environment adjustment method and indoor environment adjustment system | |
| CN110439841A (en) | Stabilization air flow system for the test of external-wall heat-insulation material combustion simulation | |
| CN109264205A (en) | A kind of communication equipment box that can be adjusted according to Changes in weather | |
| CN113539047A (en) | Linkage type parallelization ecological environment simulation device and system | |
| CN114674979A (en) | On-spot carbon emission detection device of operation based on 5G and unmanned aerial vehicle | |
| CN210486312U (en) | Drying device of diode production usefulness | |
| CN208001691U (en) | A kind of new energy green house of vegetables temperature-adjusting device | |
| CN208253579U (en) | A kind of novel air-fuel Self Matching top adjustment is than box-type gas temperature adjustment burner | |
| CN108571734B (en) | Control device for garbage combustion temperature | |
| CN213580013U (en) | Pneumatic heat-vibration combined test device for flat model with adjustable attack angle | |
| CN203901904U (en) | Polyethylene separation plate and glass fiber compounding machine | |
| CN220038910U (en) | Portable automatic temperature control's firing equipment | |
| CN102944145B (en) | A kind of small arms test aspect ratio is the low speed free jet equipment of 180: 1 | |
| CN102937817B (en) | Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker | |
| CN211043431U (en) | Multifunctional integrated wind element calibrating device | |
| CN206818817U (en) | Tropical deterioration room | |
| CN207674656U (en) | A kind of power cable connector conditions warrant device | |
| CN111786279A (en) | Real-time monitoring system applied to low-voltage power distribution cabinet | |
| CN111638735A (en) | Constant-volume combustion bomb heating device and method | |
| CN204216453U (en) | A kind of reactor with T-shaped core insulation against ground prosthetic device | |
| CN201666490U (en) | High and low temperature protective device for laser performance | |
| CN207831817U (en) | dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
|
| RJ01 | Rejection of invention patent application after publication |