CN209102399U - Heat load adjusting device and environmental simulation laboratory - Google Patents
Heat load adjusting device and environmental simulation laboratory Download PDFInfo
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- CN209102399U CN209102399U CN201821971529.8U CN201821971529U CN209102399U CN 209102399 U CN209102399 U CN 209102399U CN 201821971529 U CN201821971529 U CN 201821971529U CN 209102399 U CN209102399 U CN 209102399U
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- 238000004088 simulation Methods 0.000 title claims abstract description 27
- 230000007613 environmental effect Effects 0.000 title claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 29
- 238000004378 air conditioning Methods 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000016285 Movement disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
A heat load regulator and environment simulation laboratory belong to the technical field of laboratory equipment and comprise a fan, an air volume regulating valve, an air volume sensor, a variable cross-section air supply duct, an air supply outlet, an air return duct, a first temperature sensor and a second temperature sensor, wherein a buffer space is arranged between the variable cross-section air supply duct and the air volume regulating valve, and the air supply outlet is positioned on the buffer space. Thermal load adjusting device sets up the lateral wall top at the simulation laboratory, realize the air supply all around of laboratory top and the mode of sending back the wind of upper portion return air, make the air current pass through the variable cross section wind channel earlier by the supply-air outlet, rethread buffer space, rethread supply-air outlet gets into the laboratory, form better air current tissue, make the laboratory obtain stable wind field, can avoid simulating that the nearly supply-air outlet department wind speed of laboratory is too big and keep away from the condition that supply-air outlet department wind speed is the undersize again like this, thereby ensure that air current tissue evenly steadily flows the distribution in the environmental simulation laboratory.
Description
Technical field
The utility model relates to laboratory equipment technical field more particularly to a kind of heat load adjusting device and environmental simulations
Laboratory.
Background technique
It is also higher and higher to the efficiency requirement of air-conditioning equipment with the implementation of national energy conservation and emission reduction policy, thus to air-conditioning
The performance test of equipment is vital.Environmental simulation laboratory can simulate various temperature, humidity and air velocity work
Condition meets the requirement of air-conditioning equipment testing standard, while being able to maintain the stability and uniformity of test zone operating condition.Laboratory
Operating parameter by testing out air-conditioning equipment obtains its energy valid value, and the condition and standard condition of simulation are closer more stable,
Obtained result is more accurate.
Environmental simulation laboratory can simulate air-conditioning practical service environment, with the performance of testing air conditioner.Patent No.
200820047109.0 provide a kind of comfort environmental simulation laboratory, can testing air conditioner comfort, but this laboratory is being tested
When not can control the load for entering the room side, be not able to satisfy national standard test request.
National standard GB/T 33658-2017 proposes following two o'clock requirement to comfort laboratory thermic load investment: 1. putting into
Thermic load will reach 70% (thermic load of investment is accurate adjustable) of tested air-conditioning rated capacity；2. the thermic load put into should be use up
Amount does not influence interior room and is tested the wind field of unit, temperature field (mode of the load of investment wants slow, soft).In this way, optimal
Scheme be radiation heat transfer mode, but due to comfort interior room be structure, it is very thin, can not add wherein coil pipe carry out spoke
Penetrate heat exchange；And installation electric heater can only also meet the investment of thermic load on chamber wall face, not be able to satisfy refrigeration duty investment；Cause
This can only send hot and cold wind to enter interior room by traditional heat convection mode.But common laboratory heat load adjusting device is in order to reach
To the effect of rapid temperature rise and drop, High cooling power is generallyd use, the mode of Wind Volume is adjusted, but the method precision is lower and right
Wind field, Influence of Temperature Field are very big in laboratory.
The airflow pattern for sending side to return is mostly used between existing environment, this air-supply air-flow first passes through in the mixing of static pressure chamber again
The wind pushing form of orifice plate can solve the problems, such as air-supply temperature and humidity and air-flow nonuniform organization to a certain degree, but not from root
Improve air current composition in sheet in the overall distribution of test bay test zone.Since test bay is sending back to for top air-supply side return air
Wind design, this air blow and return dead zone will occur in test zone, to cause test space aerial temperature and humidity and air current composition
Unevenly.Patent CN105021415A discloses a kind of parallel blowing-type food refrigerator test device, which passes through variable cross-section
Air blow and return static pressure space carry out the Flow Field Distribution in optimal inspection region, can achieve certain effect.But this side send side to return
The streamer mode blown in parallel have higher requirement to air supply parameter for the operating condition for meeting test zone.On the other hand, it surveys
It is very big close to the air current composition difference of air-supply side and return side to try region, the uniformity of entire test area air-flow is also difficult to full
Foot.
Between the general environment using return air stream mode at the top of two Lateral supplies, air-flow of blowing enters test by two sides orifice plate
It can mutually liquidate and mix behind region, so that air portion region movement disorder in the test, this just cannot be guaranteed operating condition of test
Stability and uniformity, influence whether test accuracy.
Utility model content
This patent provides a kind of comfort interior room thermic load investment device, in the place arrangement air hose without test, leads to
It crosses different workload demands and calculates different flow velocity and wind-warm syndrome, air-supply uses orifice feeding；Return air is returned using windy mouth, small flow velocity
The form of wind, mainly by variable cross-section air duct and a cushion space be combined in the way of realize balanced ventilation.It is not influencing
Interior room carries out load investment under the premise of being tested unit wind speed field, temperature field.
The outside surrounding of the comfort environmental laboratory of the utility model has heat room plate around forming, and library plate side is set
Set a sliding door, the space formed between library plate and laboratory on the outside of laboratory, placing other devices, while library plate is set
Setting can protect environmental simulation laboratory relatively independent, from external interference.
Indoor is divided into the room A and the room B, and the room A and the room B are by removable door from spaced intermediate, therefore indoor test area can
To change, making interior survey area can be A or A+B, and the size of test room area is determined according to the size of tested air conditioning capacity, real
Testing room fence structure is heat room plate, and respectively there are a sliding door in the room A and the room B, for passing in and out laboratory this comfort environmental simulation
There is heat load adjusting device in laboratory, the load entered on the inside of laboratory can be made adjustable, to meet national standard test request.It is real
Influence of the load investment to tested machine temperature field, wind field is now reduced as far as possible.
Wherein the room A and the room B respectively use set of device, the room A and the room B using removable sliding door as the bilateral symmetry space of axis, the room A
It is respectively provided with a set of heat load adjusting device system with the experiment room B, installation settings of the system in two Room is equally symmetrical.Thermic load
Regulating device is mounted on the side wall roof of laboratory, to save lab space, meanwhile, entire laboratory can be made to seem clean and tidy
It is beautiful.
The heat load adjusting device of the utility model is by blower, volume damper, air flow sensor, supply air duct, buffering
Space, return airway and temperature sensor, air outlet composition.By taking the room B as an example, close to the side of sliding door, is successively installed
One temperature sensor, blower, volume damper, air flow sensor, supply air duct, return airway, second temperature sensor.First
Temperature sensor is mounted on blower mouth, and to measure air inlet problem, the return air farthest from blower is arranged in second temperature sensor
At the air outlet in air duct, to detect leaving air temp.
Cushion space is provided between heat load adjusting device and laboratory, supply air duct is variable cross-section supply air duct, is sent
Equally distributed air outlet is provided on wind air duct.It is provided with cushion space between variable cross-section supply air duct and laboratory roof,
Cushion space and laboratory top side wall contact site, are provided with air outlet, so that the wind from blower be made to pass sequentially through air-supply
Second air outlet of the first air outlet on pipeline, cushion space enters laboratory internal.
The top of laboratory side wall is arranged in supply air duct, has sunk structure on the supply air duct, sunk structure it is big
The small return air inlet size not less than return air duct.Return air duct is arranged in the inside side walls of laboratory, and return air inlet is located at air-supply
In gap between pipeline and laboratory side wall, return air open height is lower than the height of heat load adjusting device.
Supply air duct is arranged in the top of side wall, can so mitigate air duct to the pressure on laboratory roof.Return air duct
Through laboratory side wall, one end opening is located on the inside of laboratory, is used for outlet air, open at one end to be located at air supply duct and laboratory
Recess between side wall, air supply duct and wind pipe can also effectively reduce occupied space in the characteristic in laboratory.
It is as follows that outside load is sent to indoor process:
Air-supply: realizing balanced ventilation using the mode that variable cross-section air duct and cushion space combine, specific as follows, wind of blowing
Road and cushion space are welded on roof, and cushion space can make the hardened structure of heat room；Meanwhile four at the top of the room of laboratory
Week, cushion space, air duct bottom corresponding position open the second air outlet simultaneously, and the second air outlet should be arranged in four to the greatest extent
Week, because laboratory surrounding has no thermocouple measuring point (thermocouple is generally 0.5m at a distance from four peripheral wall surfaces of laboratory),
The influence to indoor temperature field and velocity field can be reduced as far as in the case where surrounding air-supply；Thermic load is sucked by blower
Variable cross-section supply air duct then enters cushion space along the first air outlet of supply air duct.Each air port pair on supply air duct
The duct cross-section product answered is all different, and wind speed is constant while to guarantee that air quantity is reduced, i.e. the wind speed of guarantee air outlet is essentially identical.
Thermic load obtains a buffering after entering cushion space, therefore entering the indoor wind of experiment by cushion space is small wind speed, and
Air quantity is uniform, so that thermic load overflows in laboratory from cushion space, reduces influence of the wind speed to indoor temperature field.Buffering is empty
Between length and width it is identical as laboratory, be highly greater than equal to 0.5m, be just able to achieve the effect of buffering, the buffering in each section in this way
Space is equipped with air outlet.
Return air: return airway is also to be fixed by welding on room, and air duct quantity should not be excessive, because excessively may
Cause to collapse at the top of room；The distribution in air duct also should be also to reduce load investment as far as possible to tested machine temperature in surrounding, purpose
Spend the influence of field, wind field；The return air inlet of return airway can be formed back because low as far as possible to avoid the wind come with air outlet feeding in this way
Stream, return air overflow to roof air port by indoor air port naturally, realize back wind action.
In system, the room A, the room B thermic load input coefficient are identical and respectively relatively independent, and system is by blower, supply air duct, wind
Adjustable valve, air flow sensor, return airway composition, the room A, the room B system can be individually enabled and also enable simultaneously.
The beneficial effects of the utility model are:
(1) the utility model makes air-flow by blowing using the air blow and return mode of test zone surrounding air-supply and top return air
Mouth first passes through variable cross-section air duct, then by cushion space, then enters laboratory by air outlet, is easily formed preferable gas in this way
Tissue is flowed, stable wind field is obtained, it is excessive and too small far from wind speed at air outlet to can be avoided wind speed at nearly air outlet in this way
The case where, so that it is guaranteed that air current composition uniformly and stably flow distribution.
(2) top of laboratory room side wall is arranged in control device, can avoid tradition setting at top and has droplets form
It can be slipped in laboratory, cause the damage to simulated environment laboratory.Weight adjustment device is mounted on the roof of indoor, with
Lab space is saved, meanwhile, entire laboratory can be made to seem neat and artistic.
(3) the utility model is compact-sized and is easy to be transformed realization, optimizes building while requiring between meeting test
Space reduces initial cost.And the heat preservation of board isolation performance used is strong, easy to process and combination.
Detailed description of the invention
Fig. 1 shows environmental simulation laboratory overall top view；
Fig. 2 shows environmental simulation laboratory top side wall top views；
Fig. 3 shows environmental simulation laboratory longitudinal sectional view；
Fig. 4 shows variable cross-section air duct longitudinal sectional view；
Fig. 5 shows the control principle drawing of environmental simulation laboratory heat load adjusting device.
Note: 1. blowers；2. volume damper；3. the first temperature sensor；4. air flow sensor；5. supply air duct；6. the
One air outlet；7. return airway；8. second temperature sensor；9. varying-arca channel；10. cushion space；11. removable door；
12. sliding door；13. library plate；14. the second air outlet；15. sunk structure.
Specific embodiment
As shown in Figure 1, the comfort environmental laboratory of the utility model, outside surrounding has library plate 13 around forming,
13 side of library plate setting, one sliding door, the space formed between outside library plate 13 and laboratory, to place other devices, together
When library plate 13 setting can protect it is relatively independent inside environmental simulation laboratory, from external interference.
It is divided into the room A and the room B on the inside of laboratory, set of device, the room A and the room B are used respectively to move sliding door 11 in the room A and the room B
For the bilateral symmetry space of axis, the room A and the experiment room B are respectively provided with a set of heat load adjusting device system, and the system is in two Room pair
Claim installation.Heat load adjusting device is mounted on the roof of indoor, to save laboratory internal space, meanwhile, entire reality can be made
It tests room and seems neat and artistic.
Such as Fig. 2, shown in Fig. 3, the heat load adjusting device of the utility model is by blower 1, volume damper 2, the first temperature
Sensor 3, air flow sensor 4, supply air duct 5, cushion space 10, return airway 7 and second temperature sensor 8 form.With the room B
For, close to the side of removable sliding door 11, the first temperature sensor 3, blower 1, volume damper 2, wind are successively installed
Quantity sensor 4, supply air duct 5, return airway 7, second temperature sensor 8.First temperature sensor 3 is located at by air inlet fan, uses
In the temperature of test air inlet, second temperature sensor 8 is located at the air outlet of return airway 7, for detecting the temperature of outlet air.Wind
Volume damper 2 is equipped between machine 1 and air flow sensor 4, to adjust air inlet size.
Cushion space 10, the length and width of cushion space 10 and laboratory are additionally provided between supply air duct 5 and the top laboratory B
It is identical, highly it is greater than equal to 0.5m.Cushion space 10 is to buffer the wind speed from supply air duct 5.
Wherein supply air duct 5 is several varying-arca channels composition, as shown in Figure 4, it is preferred that varying-arca channel quantity is 20
A, 9 section of varying-arca channel surrounds the laboratory B top side wall one week, and 9 section of varying-arca channel is sequentially reduced from air inlet fan 1,
To guarantee air output that balanced ventilation, entire air duct are kept constant.Cushion space 10 corresponds to close to laboratory roof position
Several second air outlets 14 are arranged in every section of variable cross-section wind passage mouth, the first air-supply on position, size and number and supply air duct 5
Mouth 6 is corresponding, it is preferred that the second air outlet 14 is 20, so that the wind from blower be made to send by first on supply air duct 5
Behind air port 6, enter laboratory into cushion space 10, then by the second air outlet 14 of cushion space 10.
Laboratory roof is further fixedly arranged on return airway 7, and return air duct 7 is arranged on the inner sidewall of laboratory, return air
For mouth in the sunk structure 15 between air supply duct 5 and laboratory side wall, the indoor air port of the lower end of return airway 7 should be as far as possible
It is low, it can be formed flow back to avoid the wind come with air outlet feeding in this way, but need to have certain distance with experiment room floor, convenient for real
It tests indoor wind and enters return airway.The upper end return air inlet of return airway 7 is led directly on the outside of laboratory, and return air is by indoor air port
Naturally roof air port is overflowed to, realizes back wind action.When the air pressure of indoor is higher than outside air pressure, indoor air can be by
The return air inlet of return airway flows back to outside along return airway automatically.
It is as follows that outside load is sent to indoor process:
Air-supply: as shown in figure 3, realizing balanced ventilation using the mode that variable cross-section air duct 9 and cushion space 10 combine, have
Body is as follows, and supply air duct 5 and cushion space 10 are welded on roof, and cushion space 10 can make the hardened structure of heat room；Meanwhile
Surrounding, cushion space 10, air duct bottom corresponding position open air outlet simultaneously at the top of the room of laboratory, and air outlet should be maximum
It is disposed around, this structure opens 20 air outlets, because laboratory surrounding has no thermocouple measuring point (thermocouple and laboratory surrounding
The distance of wall surface is 0.5m), therefore, it can be reduced as far as in the case where surrounding air-supply to indoor temperature field and velocity field
Influence；Thermic load sucks variable cross-section air duct 9 by blower, and then along air duct, air outlet enters cushion space 10.Supply air duct 5
On each air port corresponding duct cross-section product it is different, wind speed is constant while to guarantee that flow is reduced, that is, guarantees that 20 go out
The wind speed in air port is essentially identical.Thermic load obtains a buffering after entering cushion space 10, therefore is entered by cushion space 10
Testing indoor wind is small wind speed, and air quantity is uniform, so that thermic load overflows in laboratory from cushion space 10, reduces wind speed
Influence to indoor temperature field.The whole length and width of cushion space 10 are identical as laboratory, are highly more than or equal to 0.5m, such ability
Realize the effect of buffering, cushion space 10 and laboratory top side wall contact site are provided with several air outlets, it is preferred its
Position, size and number are identical as the air outlet on supply air duct 5, so that the wind from blower be made to pass sequentially through supply air duct 5
On air outlet, the air outlet of cushion space 10 enters laboratory internal.
Return air: as shown in Figures 2 and 3, return airway 7 is also to be fixed by welding on room, and air duct quantity should not mistake
It is more, it collapses at the top of room because excessively may result in, 6 return air inlets are arranged in we；The distribution in air duct also should in surrounding,
Its purpose is also the influence for reducing load investment as far as possible to tested machine temperature field, wind field；The return air inlet of return airway 7 is because as far as possible
It is low, it can be formed flow back to avoid the wind come with air outlet feeding in this way, return air overflows to roof air port by indoor air port naturally, real
Now return wind action.
The principle that control enters the room side payload is as follows: as shown in figure 5, the first temperature sensor 3 detection air inlet temperature
Degree, second temperature sensor detect leaving air temp, and air flow sensor 4 detects air force, air flow sensor 4 and temperature sensor
Detection signal be input in programmable logic controller (PLC), programmable logic controller (PLC), which calculates, is actually fed into load, and with set
Surely it is sent into load to compare, if being actually fed into load value > assumed load value, programmable logic controller (PLC), which exports one, makes air quantity tune
The control signal that section valve turns down, if being actually fed into load value < assumed load value, programmable logic controller (PLC), which exports one, to be made
Volume damper opens big control signal, and passes a feedback signal back by air flow sensor, forms a closed-loop control, from
And it realizes the payload for entering the room side and can control.In system, the room A, the room B thermic load input coefficient are identical and respectively opposite
Independent, system is made of blower, supply air duct 5, volume damper, air flow sensor, return airway 7, the room A, the room B system
Can be individually enabled and also enable simultaneously, wherein interior room use is there are two types of situation: A singly opens room, the room A+B standard-sized sheet.
Claims (11)
1. a kind of heat load adjusting device, including blower (1), volume damper (2), air flow sensor (4), supply air duct (5),
Return airway (7) and the first temperature sensor (3) and second temperature sensor (8) composition, volume damper (2), the first temperature
Sensor (3) and air flow sensor (4) are located between blower (1) and supply air duct (5), and second temperature sensor (8) is located at back
At the air outlet in wind air duct (7), the upper end air outlet of return airway (7) is located at supply air duct (5) side, which is characterized in that send
Cushion space (10) are set below wind air duct (5), are equipped with the second air outlet (14) below cushion space (10), the wind of blower (1)
By the first air outlet (6) of supply air duct (5), sent out into after cushion space (10), then through the second air outlet (14).
2. heat load adjusting device according to claim 1, which is characterized in that the supply air duct (5) is varying cross-section duct
Road (9).
3. heat load adjusting device according to claim 2, which is characterized in that the varying-arca channel (9) is by equal long tubes
The section of Duan Zucheng, pipeline section are sequentially reduced since with air inlet fan (1) connecting pin.
4. heat load adjusting device according to claim 3, which is characterized in that the pipeline section of the varying-arca channel (9) is
20.
5. heat load adjusting device according to claim 4, which is characterized in that the cushion space (10) is heat room plate
Structure.
6. -5 any heat load adjusting device according to claim 1, which is characterized in that have on the supply air duct (5)
Sunk structure (15).
7. heat load adjusting device according to claim 6, which is characterized in that the upper end outlet air of the return airway (7)
Mouth is located at the sunk structure (15) of supply air duct (5).
8. heat load adjusting device according to claim 7, which is characterized in that the number of the return airway (7) is 3
It is a.
9. a kind of environmental simulation laboratory, which is characterized in that including any heat load adjusting device of claim 1-8.
10. environmental simulation laboratory according to claim 9, which is characterized in that the heat load adjusting device is mounted on
The length and width of the top side wall of environmental simulation laboratory, cushion space (10) are identical as environmental simulation laboratory, are highly not less than
0.5m, return airway (7) are arranged in the internal side wall of environmental simulation laboratory, and lower ending opening is located in environmental simulation laboratory
Side, upper end opening is in environmental simulation laboratory top side wall.
11. environmental simulation laboratory according to claim 10, which is characterized in that set inside the environmental simulation laboratory
Sliding door is set, environmental simulation laboratory is divided into two chambers, two chambers are symmetrically installed heat load adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971529.8U CN209102399U (en) | 2018-11-26 | 2018-11-26 | Heat load adjusting device and environmental simulation laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971529.8U CN209102399U (en) | 2018-11-26 | 2018-11-26 | Heat load adjusting device and environmental simulation laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209102399U true CN209102399U (en) | 2019-07-12 |
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ID=67161726
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|---|---|---|---|
| CN201821971529.8U Expired - Fee Related CN209102399U (en) | 2018-11-26 | 2018-11-26 | Heat load adjusting device and environmental simulation laboratory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114048697A (en) * | 2021-12-31 | 2022-02-15 | 中国飞机强度研究所 | Airplane test airflow organization design method |
-
2018
- 2018-11-26 CN CN201821971529.8U patent/CN209102399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114048697A (en) * | 2021-12-31 | 2022-02-15 | 中国飞机强度研究所 | Airplane test airflow organization design method |
| CN114048697B (en) * | 2021-12-31 | 2022-04-15 | 中国飞机强度研究所 | Airplane test airflow organization design method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 Termination date: 20211126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |