CN208366927U - A kind of system for evaluating adsorbent absorption property - Google Patents
A kind of system for evaluating adsorbent absorption property Download PDFInfo
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- CN208366927U CN208366927U CN201821070240.9U CN201821070240U CN208366927U CN 208366927 U CN208366927 U CN 208366927U CN 201821070240 U CN201821070240 U CN 201821070240U CN 208366927 U CN208366927 U CN 208366927U
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Abstract
The utility model discloses a kind of systems for evaluating adsorbent absorption property, the system includes gas generating unit (1), gas constant temperature device (2), vacuum tank (3) and thermostat (5), wherein, gas generating unit (1) is connected to vacuum tank (3) and conveys detection gas to vacuum tank (3)；Gas constant temperature device (2) is set to the periphery of gas generating unit (1), the temperature of regulation and control gas generating unit (1) interior detection gas；Vacuum pump (5), which vacuumizes, makes vacuum tank (3) to be negative pressure state, and the sample to be tested placed in vacuum tank (3) adsorbs the detection gas conveyed by gas generating unit (1)；The thermostat (4) of regulation and control vacuum tank (3) temperature is additionally provided on the outside of the vacuum tank (3).For the system using simple and convenient, evaluation speed is fast, and accuracy is high, is particularly suitable for the evaluation of load type adsorbing agent performance and its superiority and inferiority screening of formula.
Description
Technical field
The utility model relates to a kind of systems for quickly carrying out performance evaluation to adsorbent, and it is net to be particularly suitable for air
Screening early period and performance evaluation work of the carried active carbon in change field or other modified adsorbents (absorbent-type adsorbent) formula
Make.
Background technique
Generally use active carbon or carried active carbon as adsorbent in air purifier.Carried active carbon adsorptivity
In the evaluation method of energy, the most commonly used is ADSORPTION IN A FIXED BED method and static adsorptive methods.
ADSORPTION IN A FIXED BED method changes by the weight change of detection adsorbent or into the gas concentration before and after fixed bed
Estimate the absorption property of object to be measured.ADSORPTION IN A FIXED BED method is widely applicable, and accuracy is higher；But treating capacity is small, is difficult once to locate
Multiple objects to be measured are managed, and measures gas concentration variation and needs more professional instrument or cumbersome operation.
Static adsorptive method is to be statically placed in object to be measured and under test gas in secret room jointly, and it is to be measured right to measure after a certain period of time
The weight gain of elephant or the situation of change of secret room gas concentration.Static adsorptive method is simple and easy, can once test multiple samples, but difficult
To exclude the influence of water vapor in air or other gases, the volatile gas such as first occurred with aqueous solution is especially tested
When the gases such as aldehyde, ammonium hydroxide, more it is difficult to exclude the influence of the synchronous absorption vapor of adsorbent；Static adsorptive method is interim for needing
The gas of preparation, such as hydrogen sulfide gas, it is also difficult to implement.
The present inventor improves existing technology due to the above reasons, and it is simple to develop a kind of structure, operation side
Just, the test macro of performance of the adsorbent can quick and precisely be evaluated.
Utility model content
In order to overcome the above problem, present inventor has performed sharp study, design a kind of evaluation performance of the adsorbent is
System, the system increase the difficulty of adsorbent adsorbed gas, short time by making adsorbent adsorb detection gas under negative pressure state
The absorption property difference of different adsorbents especially load type adsorbing agent is inside widened, so that the system can be adsorbed with Fast Evaluation
The performance of agent；It can be applicable to the escaping gas containing moisture simultaneously, when detection not will receive the interference of moisture.
Specifically, the purpose of this utility model is to provide a kind of system for evaluating adsorbent absorption property, the systems
Including gas generating unit 1, gas constant temperature device 2, vacuum tank 3 and thermostat 4, wherein
The pipeline being connected to vacuum tank 3 is provided in the upper end of gas generating unit 1, by the pipeline, gas is filled
It sets 1 and conveys detection gas to vacuum tank 3；
The periphery of gas generating unit 1 is provided with the generation of 2 gas constant temperature device of gas constant temperature device, 2 regulation and control gas
The temperature of detection gas in device 1；
The vacuum tank 3 is connect by pipeline with vacuum pump 5, and vacuum pump 5 vacuumizes, and makes 3 negative pressure state of vacuum tank；Very
The sample to be tested placed in empty van 3 adsorbs the detection gas conveyed by gas generating unit 1；
The outside of the vacuum tank 3 is provided with thermostat 4, the temperature in 4 regulation and control vacuum tank 3 of thermostat.
It is provided with control valve 6 on the pipeline that the gas generating unit 1 is connected to vacuum tank 3, pipeline is opened or closed, pushes away
The flowing of detection gas in dynamic or cutting gas generating unit 1.
Detection gas are stored in the gas generating unit 1, the detection gas are escaping gas, including formaldehyde, ammonia
Any or combination in gas, acetaldehyde, hydrogen sulfide, trichloro ethylene, toluene and dimethylbenzene.
It further include have the solution containing escaping gas in the gas generating unit 1, it is described containing escaping gas
Solution includes ammonia spirit, acetaldehyde solution and hydrogen sulfide gas reaction solution.
After gas constant temperature device 2 reduces or improves the temperature to set temperature of gas generating unit 1, to gas generating unit
1 carries out isothermal holding.
The vacuum tank 3 is closed container, and upper part can open and close.
When the vacuum tank 3 is negative pressure state, vacuum degree is -0.1~-1 kg/cm.
Vacuum control valve 10 is provided on pipeline between the vacuum tank 3 and vacuum pump 5.
It is additionally provided with the blow valve 7 admitted air into vacuum tank 3 on the vacuum tank 3, measures temperature in vacuum tank 3
The vacuum meter 9 of vacuum degree in thermometer 8 and measurement vacuum tank 3.
Beneficial effect possessed by the utility model includes:
(1) a kind of system of the evaluation adsorbent absorption property of preferred embodiment provided by the utility model is in negative pressure shape
State is adsorbed, and since the difficulty that adsorbent adsorbs escaping gas under negative pressure state is bigger, is exaggerated not in the short time
With the difference of adsorbent absorption property, it can use the system and test sample quickly screened.
(2) a kind of system of the evaluation adsorbent absorption property of preferred embodiment provided by the utility model uses simple
Convenient, evaluation speed is fast, and accuracy is high, is particularly suitable for the evaluation of load type adsorbing agent performance and its superiority and inferiority screening of formula.
(3) a kind of system of the evaluation adsorbent absorption property of preferred embodiment provided by the utility model is to adsorbent
Interference of the moisture in detection gas to absorption can be excluded when being evaluated, i.e. moisture in detection gas will not be to adsorbent
Performance measurement generate interference.
(4) a kind of system of the evaluation adsorbent absorption property of preferred embodiment provided by the utility model is according to reality
Demand, adjustable detection gas, detection temperature and detection time etc. are applied widely.
(5) a kind of system of the evaluation adsorbent absorption property of preferred embodiment provided by the utility model can be with single
A variety of different test samples are tested when detection, ensure that sample to be tested is tested under identical external condition, it can be with accurate judgement
The difference of sample to be tested absorption properties different with analysis, for the early screening of adsorbent.
Detailed description of the invention
Fig. 1 is shown to be shown according to a kind of connection of the system of the evaluation adsorbent absorption property of preferred embodiment of the utility model
It is intended to.
Drawing reference numeral explanation:
1- gas generating unit
2- gas constant temperature device
3- vacuum tank
4- thermostat
5- vacuum pump
6- control valve
7- blow valve
8- thermometer
9- vacuum meter
10- vacuum control valve
Specific embodiment
Below by drawings and examples to the exemplary further description of the utility model.Illustrated by these, this
The characteristics of utility model and advantage will become more apparent from clear.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the attached drawings
In terms of kind, but unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other not
Constituting conflict can be combined with each other.
The utility model provides a kind of system for evaluating adsorbent absorption property, and the system comprises gas generating units
1, gas constant temperature device 2, vacuum tank 3 and thermostat 4.
The gas generating unit 1 conveys detection gas to vacuum tank 3；
The temperature of 2 regulation and control gas generating unit 1 of gas constant temperature device；
Vacuum tank 3 is negative pressure state, and the interior sample to be tested placed adsorbs the detection gas conveyed by gas generating unit 1
Body；
Temperature in 4 regulation and control vacuum tank 3 of thermostat.
Wherein, detection gas are stored in the gas generating unit 1.When detection gas can buy acquisition, by the purchase
The detection gas obtained are directly loadable into gas generating unit 1；When detection gas have no commercial goods, can also voluntarily make
Standby detection gas, and the gas is passed through in gas generating unit 1 and is directly used, or is stored in gas generating unit 1, in case
It uses.
In the present invention, the detection gas refer to gas when detecting adsorbent absorption property, especially command
Hair property gas, such as volatile organic gases VOCs, the preferably described detection gas include formaldehyde, ammonia, acetaldehyde, hydrogen sulfide, three
Any or combination in vinyl chloride, toluene and dimethylbenzene；The detection gas can also be the aqueous solution containing escaping gas,
Such as ammonia spirit, acetaldehyde solution or hydrogen sulfide gas reaction solution.
It is found in research, in some cases, some detection gas need appropriate heating to be just easy evolution；Another side
Face, in water solution system, summer room temperature is higher, and under the action of vacuum, vapor easily enters vacuum tank, true when entering
When the amount of the vapor of empty van is larger, measurement may be will affect.
Preferably, the periphery of gas generating unit 1 is provided with gas constant temperature device 2, with the generation of regulation and control gas
The temperature of detection gas in device 1.By controlling temperature, it is ensured that the stabilization and consistency of test condition are avoided by room
The influence of temperature variation.
The gas constant temperature device 2 can there are many modes, such as ice-water bath constant temperature, electric cooling or electrical heat tracing；Gas
Body thermostat 2 can reduce or improve the temperature of gas generating unit 1, when reaching set temperature, to gas generating unit 1
Carry out isothermal holding.
The gas constant temperature device 2 as needed, can star, closes or be not provided with.
It is provided with the pipeline being connected to vacuum tank 3, in the upper end of gas generating unit 1 to convey detection gas.Preferably,
It is provided with control valve 6 on pipeline, can according to need and open or close pipeline, to push or cut off the stream of detection gas
It is dynamic.
The vacuum tank 3 is closed container, and preferably upper part can open and close；Vacuum tank 3 passes through pipeline and vacuum
5 connection of pump.After starting vacuum pump 5, gas is absorbed in vacuum tank 3, it is made to keep negative pressure state.Preferably, vacuum tank 3 is
When negative pressure state, vacuum degree is -0.1~-1 kg/cm, such as -0.5 kg/cm.
Preferably, it is provided with vacuum control valve 10 on the pipeline between vacuum tank 3 and vacuum pump 5, can according to need
It opens and closes, realizes the vacuumize process to vacuum tank 3.
Further, it is additionally provided with vacuum meter 9 on vacuum tank 3, the starting time of vacuum pump 5 is controlled according to vacuum meter 9
With the vacuum degree in the real time measure vacuum tank 3.
Preferably, when reaching the vacuum degree of setting in vacuum tank 3, vacuum pump 5 is closed；Detection gas are passed through, due to true
It is negative pressure state in empty van 3, detection gas are drawn into vacuum tank 3, and are adsorbed by the adsorbent in vacuum tank 3.
Performance of the system of evaluation adsorbent absorption property provided by the utility model especially suitable for load type adsorbing agent
Evaluation, load type adsorbing agent are to be fixed on it by the way that chemical reaction occurs with pernicious gas by way of loading capturing agent
On adsorbent.Under partial vacuum, adsorbent will not make the gas adsorbed generate desorption negative under negative pressure state；Also, it is low
Adsorption test under vacuum improves the absorption difficulty of load type adsorbing agent, the gap of absorption property has been widened, for adsorbent
For development and application person, it is more easier to carry out the superiority and inferiority screening of absorption formula.
It is additionally provided with blow valve 7 in the vacuum tank 3, blow valve 7 is opened at the end of detection, air can enter vacuum
In case 3, it is made to restore normal pressure state, takes out sample placed within convenient for opening vacuum tank 3.
The blow valve 7 also has the function of adjusting 3 vacuum degree of vacuum tank, can be with when the hypotony in vacuum tank 3
It opens blow valve 7 to admit air into vacuum tank 3, manually adjusts the vacuum degree of vacuum tank 3.
In a preferred embodiment, the outside of the vacuum tank 3 is provided with thermostat 4, which can
By the way that the temperature adjusted in vacuum tank 3 is heated or cooled.By controlling temperature, it is ensured that the test condition of sample to be tested is steady
It is fixed.
The thermostat 4 as needed, can star, closes or be not provided with.
Correspondingly, thermometer 8 is provided on vacuum tank 3, it can be with the temperature in the real time measure vacuum tank 3；Operator's root
According to needs, starts thermostat 4, the temperature in vacuum tank 3 is heated or cooled.
The sample to be tested placed in vacuum tank 3 is as needed, can be placed with one or more different test samples,
It ensure that sample to be tested is tested under identical external condition, it can be with the difference of accurate judgement sample to be tested absorption property different with analysis
It is different, for the early screening of adsorbent.The time of adsorbed state according to the difference of detection gas, can also be kept different,
Judge adsorbent of the same race to the absorption property of different detection gas with this.
System provided by the utility model can detecte 0.5-48h, can arbitrarily set detection time as needed, such as
Detect 24-48h.By measuring the variation of adsorbent weight, the absorption property that can be very good to distinguish different samples to be tested is poor
It is different；Adsorbent can also be quick and precisely evaluated to adsorb the removing processing speed of particular types gas or mixed gas and saturation
Capacity.
System structure provided by the utility model is simple, easy to operate, when carrying out absorption property evaluation using it, preferably
The following steps are included:
Step 1, precise sample to be tested are uniformly placed in vacuum tank 3, airtight vacuum in opening container containing
Case 3；
Step 2, regulating thermostatic device 4 to set temperature close control valve 6, open vacuum control valve 10, are evacuated to and set
After fixed vacuum degree, vacuum control valve 10 is closed；
Step 3 will test gas and be placed in gas generating unit 1, set the temperature of gas constant temperature device 2 according to demand,
To adjust the temperature of detection gas；
After step 4, detection gas temperature are stablized, valve 6 is opened, gas enters vacuum tank 3, sample to be tested absorption detection gas
After body to setting time, valve 6 is closed, opens valve 7, sample to be tested is taken out, measures the weight change of sample to be tested.
The weight increase ratio of sample to be tested is more, and the rate of adsorption is faster.
In step 4, sample to be tested can also be placed again into vacuum tank 3 after adsorbing a period of time, be repeatedly measured suction
Attached increment.When absorption increment no longer changes, adsorbent reaches adsorption saturation, can obtain the balanced load amount of adsorbent.
Since the difficulty that adsorbent adsorbs escaping gas under negative pressure state is bigger, different suctions are exaggerated in the short time
Therefore the difference of attached dose of absorption property can quickly screen test sample.
For absorption property evaluation system provided by the utility model using simple and convenient, evaluation speed is fast, and accuracy is high, especially
Suitable for the evaluation of load type adsorbing agent performance and its superiority and inferiority screening of formula.It can exclude to examine when being evaluated using the system
Interference of the moisture in gas to absorption is surveyed, i.e. moisture in detection gas will not generate interference to the performance measurement of adsorbent.
Embodiment
Embodiment 1
Load type adsorbing agent absorption property evaluation system, as shown in Figure 1, including gas generating unit 1, being set to gas hair
The gas constant temperature device 2 of 1 periphery of generating apparatus, vacuum tank 3, the thermostat 4 for being set to 3 periphery of vacuum tank, and connect with vacuum tank 3
The vacuum pump 5 connect.
Gas generating unit 1 is connected with vacuum tank 3 by pipeline, and control valve 6 is provided on pipeline；It is arranged on vacuum tank 3
There are blow valve 7, thermometer 8 and vacuum meter 9；Vacuum tank 3 is connected with vacuum pump 5 by pipeline, is provided with vacuum on the pipeline
Control valve 10；Temperature equipped with mixture of ice and water control gas generating unit 1 in gas constant temperature device 2.
Test sample:
Contrast sample: for the former carbon of carbon tetrachloride adsorption rate 70%；
Sample 1: using contrast sample original carbon as substrate, the load type active carbon of 5% urea is loaded；
Sample 2: using contrast sample original carbon as substrate, the load type active carbon of 15% urea is loaded；
Sample 3: using contrast sample original carbon as substrate, the load type active carbon of 20% urea is loaded；
Sample 4: using contrast sample original carbon as substrate, the load type active carbon of 10% urea is loaded.
The weight for weighing recording surface ware, using 4 different loads type active carbons as sample to be tested, unmodified original carbon is pair
It than sample, is respectively placed in surface plate, after weighing again, is put into vacuum tank 3.
This test carries out at 30 DEG C of room temperature, therefore can not start thermostat 4.
Control valve 6 and blow valve 7 are closed, vacuum control valve 10 is opened, is evacuated to -0.3 kilogram/square in vacuum tank 3
Centimetre, it closes vacuum control valve 10 and stops vacuum pump 5.
37% formalin 10ml and water 190ml is added into gas generating unit 1, uses ice in gas constant temperature device 2
Aqueous mixtures temperature control keeps temperature < 5 DEG C of gas generating unit 1.After the temperature of gas generating unit 1 is stablized, control valve is opened
6, start to test.
After absorption 1 hour, control valve 6 is closed, opens blow valve 7, keeps pressure in vacuum tank 3 balanced；Five samples are taken out,
Weighing calculates weight gain, the rate of adsorption of comparative sample.
After weighing, each sample is reentered into vacuum tank 3, repetition vacuumizes and adsorption treatment；After 24 hours
It weighs again, calculates the balanced load amount of sample.
As a result following (mass unit is gram):
| Sample ID | Contrast sample | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| Ware weight | 1.4503 | 1.0858 | 1.3357 | 1.2985 | 1.4005 |
| Gross weight | 3.3989 | 3.3863 | 3.8683 | 3.9939 | 2.8221 |
| Carbon weight | 1.9486 | 2.3005 | 2.5326 | 2.6954 | 1.4216 |
| 1 hour weight | 3.3662 | 3.4256 | 3.9394 | 4.0201 | 2.8472 |
| Increase weight % | -1.7 | 1.7 | 2.8 | 0.97 | 1.8 |
| 24 hours weight | 3.3626 | 3.4899 | 4.0765 | 4.0917 | 2.8966 |
| Increase weight % | -1.9 | 4.5 | 8.2 | 3.6 | 5.2 |
As can be seen from the results, after absorption 1 hour, former carbon is reduced due to negative pressure state desorption, weight；And four samples
In, the weight gain highest of sample 2, the weight gain of sample 3 is minimum.After absorption 24 hours, contrast sample continues desorption, and weight is still in
It reduces；And four samples still continue to adsorb, and weight gain numerical difference can go out sample absorption away from becoming larger each other with significant difference
The superiority and inferiority of performance is followed successively by sample 2, sample 4, sample 1, sample 3；Moreover, the speed of the different sample room rates of adsorption was the same as 1 hour
The absorption rate of gain of measurement is identical.It can be quick and precisely to evaluate the superiority and inferiority of sample absorption property in the short time using the device.
Experiment also illustrates that the increase of load capacity in a certain range can be improved the absorption of PARA FORMALDEHYDE PRILLS(91,95)；But excessively high load
It is bigger for the negative effect of former carbon pore plugging, to reduce performance.Different materials and loaded article have different best
Load capacity.
Use the absorption property that sample can be accurately evaluated after device to test sample 1h.
It is also known from upper table, unmodified original carbon Mass lost illustrates with this condition, former carbon PARA FORMALDEHYDE PRILLS(91,95) is not inhaled
It is attached；Without increasing weight, illustrate that the vapor in gas generating unit 1 is not adsorbed on former carbon within former carbon 24 hours.
It can accurately conclude, when using the device to test sample absorption property, vapor can be excluded completely to adsorbent
Influence, thus the equilibrium adsorption capacity of Accurate Determining adsorbent.
Judged according to upper table, in this evaluation, sample to be tested 2 is optimum formula.
Comparative example 1
By the contrast sample and sample to be tested in embodiment 1, sample pair is measured using static adsorptive method in the prior art
The absorption property of formaldehyde, as a result as follows:
| Sample ID | Contrast sample | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| Ware weight | 1.3962 | 1.0858 | 1.2985 | 1.5179 | 1.4005 |
| Gross weight | 2.2860 | 2.7087 | 3.2524 | 2.7215 | 3.1361 |
| Carbon weight | 0.8898 | 1.6229 | 1.9539 | 1.2036 | 1.7356 |
| 1 hour weight | 2.2976 | 2.7688 | 3.3417 | 2.7637 | 3.1947 |
| Increase weight % | 1.3 | 3.7 | 4.6 | 3.5 | 3.4 |
| 24 hours weight | 2.8618 | 3.4294 | 4.1057 | 3.2757 | 3.9257 |
| Weight gain | 64.7 | 44.4 | 43.7 | 46 | 45.5 |
As can be seen from the results, after absorption 1 hour, former carbon and four samples both increase weight, but the absorption of sample to be tested
Increment is higher than the absorption increment of contrast sample, illustrates that sample to be tested all adsorbs vapor and formaldehyde, and increased weight is difficult
It is the absorption for vapor or the absorption for formaldehyde to distinguish.
After absorption 24 hours, the weight gain of contrast sample is significantly larger than sample to be tested, illustrates the shadow that vapor is adsorbed in sample
Sound has been over formaldehyde adsorption, can not judge the superiority and inferiority of formaldehyde absorbing capacity, equally can not also judge the speed of the rate of adsorption.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " preceding " " rear " etc. refer to
The orientation or positional relationship shown is to be merely for convenience of describing based on the orientation or positional relationship under utility model works state
The utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation "
" connected " " connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one
Commonly；It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
It combines preferred embodiment above the utility model is illustrated, but these embodiments are only models
Example property, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the utility model, these
It each falls in the protection scope of the utility model.
Claims (9)
1. a kind of system for evaluating adsorbent absorption property, which is characterized in that the system includes gas generating unit (1), gas
Thermostat (2), vacuum tank (3) and thermostat (4), wherein
The pipeline being connected to vacuum tank (3) is provided in the upper end of gas generating unit (1), by the pipeline, gas is filled
It sets (1) and conveys detection gas to vacuum tank (3)；
The periphery of gas generating unit (1) is provided with gas constant temperature device (2), gas constant temperature device (2) regulation and control gas
The temperature of generating device (1) interior detection gas；
The vacuum tank (3) is connect by pipeline with vacuum pump (5), and vacuum pump (5) vacuumizes, and making vacuum tank (3) is negative pressure shape
State；The sample to be tested placed in vacuum tank (3) adsorbs the detection gas conveyed by gas generating unit (1)；
It is provided with thermostat (4) on the outside of the vacuum tank (3), the temperature in thermostat (4) regulation and control vacuum tank (3)
Degree.
2. system according to claim 1, which is characterized in that the gas generating unit (1) was connected to vacuum tank (3)
It is provided with control valve (6) on pipeline, opens or closes pipeline, pushes or cut off the stream of gas generating unit (1) interior detection gas
It is dynamic.
3. system according to claim 1, which is characterized in that store detection gas, institute in the gas generating unit (1)
Stating detection gas is escaping gas, including appointing in formaldehyde, ammonia, acetaldehyde, hydrogen sulfide, trichloro ethylene, toluene and dimethylbenzene
Meaning or combination.
4. system according to claim 3, which is characterized in that further include having in the gas generating unit (1) containing waving
The solution of hair property gas, the solution containing escaping gas includes that ammonia spirit, acetaldehyde solution and hydrogen sulfide gas are anti-
Answer liquid.
5. system according to claim 1, which is characterized in that gas constant temperature device (2) reduces or improves gas and fills
After the temperature to set temperature for setting (1), isothermal holding is carried out to gas generating unit (1).
6. system according to claim 1, which is characterized in that the vacuum tank (3) is closed container, and upper part can be beaten
Open and close are closed.
7. system according to claim 1, which is characterized in that the vacuum tank (3) be negative pressure state when, vacuum degree be-
0.1~-1 kg/cm.
8. system according to claim 1, which is characterized in that on the pipeline between the vacuum tank (3) and vacuum pump (5)
It is provided with vacuum control valve (10).
9. system according to claim 1, which is characterized in that be additionally provided with and admitted air into very on the vacuum tank (3)
Vacuum degree in the thermometer (8) of blow valve (7), measurement vacuum tank (3) interior temperature in empty van (3) and measurement vacuum tank (3)
Vacuum meter (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821070240.9U CN208366927U (en) | 2018-07-06 | 2018-07-06 | A kind of system for evaluating adsorbent absorption property |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821070240.9U CN208366927U (en) | 2018-07-06 | 2018-07-06 | A kind of system for evaluating adsorbent absorption property |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794010A (en) * | 2019-12-06 | 2020-02-14 | 广东海洋大学 | Formaldehyde adsorption rate detection test device |
| CN113418822A (en) * | 2021-05-28 | 2021-09-21 | 虚静科技(广州)有限责任公司 | Gas saturation adsorption capacity tester and testing method thereof |
| CN113933256A (en) * | 2021-09-22 | 2022-01-14 | 武汉纺织大学 | System and method for detecting odor adsorption and release performance of textiles |
-
2018
- 2018-07-06 CN CN201821070240.9U patent/CN208366927U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794010A (en) * | 2019-12-06 | 2020-02-14 | 广东海洋大学 | Formaldehyde adsorption rate detection test device |
| CN110794010B (en) * | 2019-12-06 | 2023-08-29 | 广东海洋大学 | Formaldehyde adsorption rate detects test device |
| CN113418822A (en) * | 2021-05-28 | 2021-09-21 | 虚静科技(广州)有限责任公司 | Gas saturation adsorption capacity tester and testing method thereof |
| CN113933256A (en) * | 2021-09-22 | 2022-01-14 | 武汉纺织大学 | System and method for detecting odor adsorption and release performance of textiles |
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