CN201788179U - Testing box for purifying and constant humid and hot climate - Google Patents
Testing box for purifying and constant humid and hot climate Download PDFInfo
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- CN201788179U CN201788179U CN2010205288991U CN201020528899U CN201788179U CN 201788179 U CN201788179 U CN 201788179U CN 2010205288991 U CN2010205288991 U CN 2010205288991U CN 201020528899 U CN201020528899 U CN 201020528899U CN 201788179 U CN201788179 U CN 201788179U
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Abstract
The utility model relates to the field of experimental apparatuses and particularly discloses a testing box for purifying and constant humid and hot climate, which comprises a constant temperature adjusting cabin, a testing cabin, an air processor, a PID (piping and instruments diagram) controller, a sealing door, a plurality of air inlets, an air outlet, a plurality of sampling ports and a draining groove, wherein the constant temperature adjusting cabin is made of insulating boards and can carry out cold and hot adjustment; the testing cabin is wrapped by the constant temperature adjusting cabin, is made of stainless steel and can be used as a heat exchanger; the air processor is positioned at the back surface of the constant temperature adjusting cabin and is connected with a PID controller with cold-hot dual adjusting function; the air processor comprises a heating group, a refrigerating unit and a fan group with forced convection; the draining groove is arranged below the sealing door and is connected with the testing cabin; the sealing door is connected with the testing cabin; the air inlets are arranged on the rear wall of the testing cabin; the air outlet is arranged at the top of the front wall of the testing cabin; and the sampling ports are arranged in the front wall of the testing cabin. The testing box with particular design enables the cleaning to the interior of the testing cabin to be convenient, and avoids the condensing or spraying of water in the testing cabin, thus effectively testing the accuracy of results.
Description
Technical field
The utility model relates to the experimental apparatus field, relates in particular to the device that is used for gas test.
Background technology
Along with the raising of living standard in recent years, people more and more pay close attention to furniture and pollute healthy influence.But because the furniture industry entry threshold is low, manufacturer is many, and product quality is uneven, and the pollution condition of harmful volatile matter and formaldehyde etc. is high for many years in the furniture.Furniture pollutes the third-largest indoor environmental pollution that has become after pollution form construction, finishing pollution at present.State General Administration for Quality Supervision organized associated mechanisms that 85 tame wood furniture manufacturing enterprises of 10 provinces in the whole nation (district) have been carried out detecting investigation between 2010 five June, and it is very serious to find that highly toxic substance endangers.There are 15 kinds of chemical toxicants at least in each enterprise, the most nearly 31 kinds.The enterprise that benzene exceeds standard accounts for 89.0%, the highlyest exceeds standard 121.5 times; The enterprise that formaldehyde exceeds standard accounts for 76.9%, the highlyest exceeds standard 116 times.
According to GB/18580-2001 " formaldehyde discharges and limits the quantity of in indoor decorating material, wood-based plate and the goods thereof " national standard, the assay method that formaldehyde is limited the quantity of in the furniture has 3 kinds: perforation extraction, exsiccator method, climate box method.Wherein the climate box method is at present domestic three kinds of the most general a kind of methods of detection sheet material burst size of methanal, is the existing unique method that is used as arbitration of standard GB/18584-2001, also is the most authoritative in the world present a kind of method of testing.This method needn't be carried out the destructiveness sampling to furniture but whole furniture be put into experimental cabin just can measure its formaldehyde and TOVC (TVOC).Than adopting perforation extraction, exsiccator method, the test result of climate box method is more genuine and believable.Can simulate indoor environment with this method, consider the influence of environmental factor (temperature, humidity, air velocity and air exchange rate), thereby make mensuration more accurate burst size, more unified, more approaching reality.
The experimental cabin that is used for the climate box method at present remains in following defective:
1, the clean environment difficulty in the experimental cabin is big, causes the background concentration of air in the experimental cabin higher, has a strong impact on the result of test;
2, condensing or spraying appears in the water vapor of air easily in the experimental cabin, thereby with more airborne chemical substance dissolvings, makes that the error of test result is bigger.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of its inner structure convenient for cleaning, the water in it can not produce the chamber of condensing or spraying.
In order to solve the problems of the technologies described above, the technical solution of the utility model is like this:
A kind of purification and constant warm chamber, comprise thermostatic control cabin, experimental cabin, air processing machine, PID controller, hermatic door, several air inlets, exhaust outlet, several sample taps and rhone, wherein, described thermostatic control cabin is made by warming plate, can carry out cold and hot adjusting; Described experimental cabin is wrapped up by the thermostatic control cabin, is made by stainless steel, can be used as heat interchanger; Described air processing machine is positioned at the back side in thermostatic control cabin, is connected with the PID controller with cold and hot pair of regulatory function, and described air processing machine comprises the blower fan group of heating group, refrigeration unit and forced convertion; Described rhone is installed on the below of hermatic door and is connected with experimental cabin; Described hermatic door links to each other with experimental cabin, and described air inlet is opened on the rear wall of experimental cabin, and described exhaust outlet is opened in the top of experimental cabin antetheca, and described sample tap is located at the antetheca of experimental cabin.
Preferably, described rhone is made by stainless steel.
Preferably, described sample tap is covered with the teflon plug, and the gas of this measure in can the warranty test cabin does not leak, and contaminated air background not.
Preferably, described purification and constant warm chamber also comprise exhaust blower, and described exhaust blower is connected with exhaust outlet.
Preferably, described experimental cabin adopts the seamless integral body that is welded of mirror face stainless steel, and its limit all adopts arcuate structure to be connected with the position, angle, forms smooth arc angling, and the inner bag corner adopts the circular arc bent angle to handle.This structure of experimental cabin is provided with, improved experimental cabin corner local air flow tissue, make that cleaning piece can fully touch all walls of cabin body easily when cleaning, the objectionable impurities that reduces this position is residual, thereby has reduced the background concentration of the interior objectionable impurities of experimental cabin body when testing.
Preferably, for the air homogeneity in the warranty test cabin, the circulation of air in the accelerated test cabin, simultaneously, in order to improve the heat exchange efficiency of stainless steel on-deck, some circulating fans can be installed on described experimental cabin rear wall, and the driving with frequency converter of this circulating fan can be regulated mean wind speed in the experimental cabin according to testing requirements.For the winding in the motor that prevents circulating fan and wet goods material pollute the air background, the motor cabinet of circulating fan is installed in outside the experimental cabin, motor cabinet stretches into by a rotating shaft and drives the fan blade rotation that is positioned at experimental cabin in the experimental cabin, and the position that experimental cabin is passed in rotating shaft seals with teflon gasket.
In the technique scheme, described thermostatic control cabin is mainly the air ambient that experimental cabin provides a constant temperature, and form stable heat transmission under the little temperature difference by air in large-area stainless steel wall and the cabin in the experimental cabin, thereby it is constant and avoid the experimental cabin inwall to form condensate water to keep in the experimental cabin temperature constant.Described experimental cabin facade wall and the artificial atmosphere doorframe is seamless is welded, make inner air fully not with joint, outside thermostatic control cabin, on the doorframe of front hermatic door is installed, door adopts the self-seal device sealing, and directly be connected with experimental cabin, malleation in the warranty test cabin prevents the surrounding air infiltration.By this measure, can make the complete isolate from outer air of air in the cabin, guaranteed the cleanliness factor of air background and the accuracy of air sample.Described experimental cabin top be exposed in the air ambient of air thermostatic control cabin all around, the stainless steel wall that utilizes experimental cabin is as heat interchanger, cold/the heat transferred in thermostatic control cabin to experimental cabin, and is brought heat into air and mixed by the cross-ventilation of inwall.Because the more conventional heat exchanger area of stainless steel wall area is much bigger, therefore, can finish heat interchange under very little temperature difference situation.Like this, since wall surface temperature far above the air dew point temperature.Can avoid water vapour in experimental cabin, to condense fully.According to verification experimental verification, in the process of cooling and stable regulation, the experimental cabin internal-external temperature difference all is no more than 4K, that is to say, under conventional 25 ℃ operating condition of test, the cabin body can stable regulation 80% relative humidity, and the dewfall phenomenon can not appear, this operating mode expansion to testing laboratory provides very big nargin.
Described air processing machine can carry out stepless heat regulation and batch (-type) refrigeration to be regulated, and the temperature that is used to keep the chuck layer is even.Described rhone and stainless steel door frame bottom fuse, and water after the experimental cabin body cleans and solution can flow into rhone automatically and drain into outdoorly, have made things convenient for user's operation.
Described air inlet (being generally 4) is mainly used in the pure air generator and links to each other, for experimental cabin provides flow, pure air that dew point is adjustable.Described exhaust outlet links to each other with exhaust blower, and the air pressure of the flow may command experimental cabin by changing this place's air generally, is set as malleation with experimental cabin pressure, causes air sample contaminated to prevent extraneous air from flowing into.
Purification described in the utility model and constant warm chamber, can accurately, stably control temperature, humidity, wind speed, replacement rate and cabin body pressure and other parameters in the experimental cabin, according to verification experimental verification, this experimental cabin is after unlatching, the temperature maximum deviation of central point and near wall point is less than 0.2K, be higher than the related request in the standard, and have excellent sealing performance; Simultaneously, because special design of the present utility model, make and can clean experimental cabin inside easily, and avoided condensing or spraying of water in the experimental cabin, thus the degree of accuracy of test result effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of purification of the utility model and constant warm chamber, comprise thermostatic control cabin 1, experimental cabin 7, air processing machine, PID controller, hermatic door 9, several air inlets 10, exhaust outlet 11, several sample taps 14, rhone 13, exhaust blower 12 and circulating fan 6, wherein
Described thermostatic control cabin 1 is made by polyurethane thermal insulation board, can carry out cold and hot adjusting;
Described sample tap 14 usefulness teflon plugs are covered, and this measure can not leaked by the gas in the warranty test cabin under the condition of contaminated air background not;
Described exhaust blower 12 is connected with exhaust outlet 11;
Described air processing machine is positioned at the back side in thermostatic control cabin, is connected with the PID controller with cold and hot pair of regulatory function, comprises the blower fan group 2 of heating group 3, refrigeration unit 5 and forced convertion;
Described rhone 14 is made by stainless steel, is installed on the below of hermatic door 9 and is connected with experimental cabin 7;
Described hermatic door 9 links to each other with experimental cabin 7, and adopts packoff 8 to seal, and described air inlet 10 is opened on the rear wall of experimental cabin 7, and described exhaust outlet 11 is opened in the top of experimental cabin 7 antethecas, and described sample tap 14 is located at the antetheca of experimental cabin 7;
Described experimental cabin 7 is made by stainless steel, and by thermostatic control cabin 1 parcel, described experimental cabin 7 adopts the seamless integral body that is welded of mirror face stainless steel, and its limit all adopts arcuate structure to be connected with the position, angle, form smooth arc angling, the inner bag corner adopts the circular arc bent angle to handle.This structure of experimental cabin 7 is provided with, experimental cabin 7 corner local air flow tissues have been improved, make that cleaning piece can fully touch all walls of cabin body easily when cleaning, the objectionable impurities that reduces this position is residual, thereby has reduced the background concentration of the interior objectionable impurities of experimental cabin body when testing.
On described experimental cabin 7 rear walls circulating fan 6 is installed, the driving with frequency converter of this circulating fan 6 can be regulated mean wind speed in the experimental cabin according to testing requirements.This structure is provided with, and mainly is for the air homogeneity in the warranty test cabin 7, and the circulation of air simultaneously, can improve the heat exchange efficiency of stainless steel on-deck in the accelerated test cabin 7.Described circulating fan 6 comprises motor and fan blade, described motor cabinet is installed in outside the experimental cabin 7, described motor cabinet stretches into by a rotating shaft and drives the fan blade rotation that is positioned at experimental cabin 7 in the experimental cabin 7, and the position that experimental cabin 7 is passed in described rotating shaft seals with teflon gasket.This structure is provided with, and mainly is for the winding in the motor that prevents circulating fan and wet goods material the air background to be polluted.
Purification described in the utility model and constant warm chamber, can accurately, stably control temperature, humidity, wind speed, replacement rate and cabin body pressure and other parameters in the experimental cabin, according to verification experimental verification, this experimental cabin is after unlatching, the temperature maximum deviation of central point and near wall point is less than 0.2K, be higher than the related request in the standard, and have excellent sealing performance; Simultaneously, because special design of the present utility model, make and can clean experimental cabin inside easily, and avoided condensing or spraying of water in the experimental cabin, thus the degree of accuracy of test result effectively.
When using purification described in the utility model and constant warm chamber,
Can dip in phosphatic testing laboratory all inside surfaces of the careful washing test of washing agent cabin with sponge mop earlier, with flushing with clean water number time, use the deionized water wiping at last then.
Then, the closing test hatch door is provided with the desired value of temperature, simultaneously in the PID controller, the desired value of dew point controller of ventilation, the air dew point regulating device of speed, the blower fan of stir speed (S.S.), the air inlet of blower fan is set, and by air exhausting device control experimental cabin internal pressure.
Open air processing machine, blower fan, air dew point regulating device and air exhausting device again, remove the air background clean and the residual moisture evaporation is done.
Sample is placed in this device, can begins experiment.
The foregoing description only is a kind of in the utility model plurality of embodiments; it is not qualification to the utility model design; under the prerequisite that does not break away from the utility model design philosophy; various modification and improvement that engineering technical personnel in this area make the technical solution of the utility model all should fall into protection domain of the present utility model.
Claims (9)
1. one kind purifies and constant warm chamber, comprise thermostatic control cabin, experimental cabin, hermatic door, several air inlets, exhaust outlet and several sample taps, described experimental cabin is wrapped up by the thermostatic control cabin, described hermatic door links to each other with experimental cabin, described air inlet is opened on the rear wall of experimental cabin, and described exhaust outlet is opened in the top of experimental cabin antetheca, and described sample tap is located at the antetheca of experimental cabin, it is characterized in that
Described purification and constant warm chamber also comprise PID controller, air processing machine and rhone, and described thermostatic control cabin is made by warming plate, can carry out cold and hot adjusting; Described experimental cabin is made by stainless steel, can be used as heat interchanger; Described air processing machine is positioned at the back side in thermostatic control cabin, is connected with the PID controller, and described air processing machine comprises the blower fan group of heating group, refrigeration unit and forced convertion; Described rhone is installed on the below of hermatic door and is connected with experimental cabin.
2. purification according to claim 1 and constant warm chamber, it is characterized in that described experimental cabin adopts the seamless integral body that is welded of mirror face stainless steel, its limit all adopts arcuate structure to be connected with the position, angle, form smooth arc angling, the inner bag corner adopts the circular arc bent angle to handle.
3. purification according to claim 1 and 2 and constant warm chamber is characterized in that, described purification and constant warm chamber also comprise exhaust blower, and described exhaust blower is connected with exhaust outlet.
4. purification according to claim 1 and 2 and constant warm chamber, it is characterized in that, some circulating fans are installed on the described experimental cabin, described circulating fan comprises motor and fan blade, described motor cabinet is installed in outside the experimental cabin, described motor cabinet stretches into by a rotating shaft and drives the fan blade rotation that is positioned at experimental cabin in the experimental cabin, and the position that experimental cabin is passed in described rotating shaft seals with teflon gasket.
5. purification according to claim 3 and constant warm chamber, it is characterized in that, some circulating fans are installed on the described experimental cabin, driving of this circulating fan with frequency converter, described circulating fan comprises motor and fan blade, described motor cabinet is installed in outside the experimental cabin, and described motor cabinet stretches into by a rotating shaft and drives the fan blade rotation that is positioned at experimental cabin in the experimental cabin, and the position that experimental cabin is passed in described rotating shaft seals with teflon gasket.
6. purification according to claim 3 and constant warm chamber is characterized in that described sample tap is covered with the teflon plug.
7. purification according to claim 5 and constant warm chamber is characterized in that described sample tap is covered with the teflon plug.
8. purification according to claim 3 and constant warm chamber is characterized in that described rhone is made by stainless steel.
9. purification according to claim 5 and constant warm chamber is characterized in that described rhone is made by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205288991U CN201788179U (en) | 2010-09-13 | 2010-09-13 | Testing box for purifying and constant humid and hot climate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205288991U CN201788179U (en) | 2010-09-13 | 2010-09-13 | Testing box for purifying and constant humid and hot climate |
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| Publication Number | Publication Date |
|---|---|
| CN201788179U true CN201788179U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205288991U Expired - Fee Related CN201788179U (en) | 2010-09-13 | 2010-09-13 | Testing box for purifying and constant humid and hot climate |
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| Country | Link |
|---|---|
| CN (1) | CN201788179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541138A (en) * | 2018-11-22 | 2019-03-29 | 广州欧正化妆品技术研究院有限公司 | A kind of perfume fragrance remaining time accelerated test instrument and operating method |
-
2010
- 2010-09-13 CN CN2010205288991U patent/CN201788179U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541138A (en) * | 2018-11-22 | 2019-03-29 | 广州欧正化妆品技术研究院有限公司 | A kind of perfume fragrance remaining time accelerated test instrument and operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20180913 |