CN203551539U - Pneumatic type saturated saline solution humidity generator - Google Patents
Pneumatic type saturated saline solution humidity generator Download PDFInfo
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- CN203551539U CN203551539U CN201320474502.9U CN201320474502U CN203551539U CN 203551539 U CN203551539 U CN 203551539U CN 201320474502 U CN201320474502 U CN 201320474502U CN 203551539 U CN203551539 U CN 203551539U
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Abstract
The utility model provides a pneumatic type saturated saline solution humidity generator. The pneumatic type saturated saline solution humidity generator comprises a preprocessor, a foaming chamber and a calibration chamber, wherein the preprocessor is used for carrying out water-steam balance pre-processing on gas provided by a gas source and a saline solution; the foaming chamber is composed of a saturation device and used for generating saturated humid air on the basis of the water-steam balance pre-processing; the calibration chamber is connected with the foaming chamber; meanwhile, the saturation device is internally provided with a micro-pore foaming head and a first temperature sensor for detecting the temperature of the saline solution; the calibration chamber is internally provided with a second temperature sensor for detecting the temperature of the calibration chamber. The pneumatic type saturated saline solution humidity generator is characterized in that the temperature sensors are used for replacing constant-temperature groove structures in all previous saturated saline solution humidity generators; the pneumatic type saturated saline solution humidity generator without a constant-temperature bath is small in volume, convenient to carry and high in efficiency; only if the temperature measurement accuracy is high enough, the humidity truth value of the saturated saline solution can really reappear; special requirements on a use environment are not required.
Description
Technical field
The utility model belongs to test apparatus field, relates to a kind of pneumatic type saturated salt solution humidity generator that utilizes saturated salt solution constant humidity principle, is applied to demarcation and the calibration test of humidity sensor.
Background technology
The constant humidity characteristic of saturated salt solution, refers to that the lip-deep relative humidity of the saturated aqueous solution of some salt has determined value.Utilize the humidity true value of this characteristic reproduction, can be used for demarcating, calibrating humidity sensor.
Yet, in the existing humidity sensor calibrating installation or saturated salt solution humidity generator that utilizes saturated salt solution constant humidity, exist and much affect the demarcation of humidity sensor and the technical matters of calibration test effect, wherein the most outstandingly be, nearly all saturated salt solution Humidity Calibration Device In Test all needs constant temperature, for example:
List of references 1(Chinese utility model patent number: Novel humidity working stamndard generator ZL200420085588.7) providing, that moisture generating bottle is arranged in Water Tank with Temp.-controlled, its object is to eliminate the humidity error that the internal system temperature difference causes, thereby in the ideal situation, think that the humidity value of soft air of generator output is exactly the nominal humidity value of saturated salt solution.
The problem of list of references 1 is, even in Water Tank with Temp.-controlled, in system, the temperature difference can not be eliminated completely, and therefore, the temperature control accuracy of calibration cell has just limited the accuracy of humidity generator.
Simultaneously, owing to there being constant temperature requirement, so the Novel humidity working stamndard generator that causes list of references 1 to provide is bulky, complex structure, and temperature control process also has influence on the response time of generator, higher to environment for use requirement, thereby limited it, become the possibility of portable use.
Utility model content
The utility model provides a kind of pneumatic type saturated salt solution humidity generator, this generator does not need to arrange calibration cell, there is volume little, be easy to carry, can a plurality of humidity points recur, the fireballing feature of aerogenesis, meanwhile, its accuracy is close to the level of reproduction saturated salt solution humidity true value.
The utility model provides scheme as follows:
The utility model embodiment provides a kind of pneumatic type saturated salt solution humidity generator, comprising:
The foaming chamber and the calibration chamber that by the first air guide element, connect, the saturated moist air that described foaming chamber generates enters described calibration chamber by described the first air guide element;
Wherein, described foaming chamber comprises:
For realizing gas and the pretreated pretreating containers of salt solusion moisture balance that source of the gas provides;
For produce the saturation vessel of saturated moist air on moisture balance pre-service basis;
In described saturator, be provided with the first temperature sensor for detection of salt solusion temperature, described the first temperature sensor is immersed in the salt solusion of described saturator, and is connected with the controller outside being arranged at described foaming chamber;
In described calibration chamber, be provided with the second temperature sensor for detection of calibration chamber temperature, described the second temperature sensor is connected with described controller;
Described controller, for the salt solusion temperature detecting based on described the first temperature sensor, determine relative humidity corresponding to described salt solusion temperature, and based on described salt solusion temperature and relative humidity corresponding to described salt solusion temperature, determine the dewpoint temperature of the saturated moist air that described saturator produces; Described controller, calibration chamber temperature and the described dewpoint temperature for detecting based on described the second temperature sensor also, calculate the relative humidity of the soft air in calibration chamber, so that the rh value of the soft air based in calibration chamber carries out the calibration of humidity sensor.
Preferably, the container that described pretreating containers and saturator are closed structure, is equipped with same salt solusion in described pretreating containers and saturator;
The first end of described the first air guide element is arranged at edge under the hermetically-sealed construction of described saturator, and the second end of described the first air guide element connects the first end of described calibration chamber.
Preferably, described pretreater is connected by the second air guide element with saturator, the first end of described the second air guide element is arranged at edge under the hermetically-sealed construction of described pretreater, the second end of described the second air guide element is arranged in described saturator, the second end of described the second air guide element is provided with microporous foam head, and described microporous foam head is immersed in the salt solusion bottom of described saturator.
Preferably, described pretreater connects described source of the gas by the 3rd air guide element, and the first end of described the 3rd air guide element is arranged at the salt solusion bottom of pretreater, and the second end of described the 3rd air guide element connects described source of the gas.
Preferably, between described foaming chamber and source of the gas, be in series with the flowmeter for detection of gas flow.
Preferably, in described pneumatic type saturated salt solution humidity generator, comprise foaming chamber group;
Described foaming chamber group comprises the foaming chamber of a plurality of parallel connections.
Preferably, the air source inlet place of each foaming chamber in described foaming chamber group is provided with the solenoid valve of being controlled by described controller.
Preferably, between described source of the gas, flowmeter, foaming chamber group, calibration chamber, be series relationship.
Preferably, the second end of described calibration chamber is uncovered.
Preferably, between foaming chamber and calibration chamber that described the first air guide element connects, be serially connected with filtrator.
From the above, can find out, the utility model provides a kind of pneumatic type saturated salt solution humidity generator, it comprises by the foaming chamber for realizing gas that source of the gas provides and the pretreated pretreater of salt solusion moisture balance and forming for produce the saturator of saturated moist air on moisture balance pre-service basis, the calibration chamber being connected with foaming chamber, simultaneously, in saturator, be also provided with microporous foam head and for detection of the first temperature sensor of salt solusion temperature, in calibration chamber, be provided with the second temperature sensor for detection of calibration chamber temperature.The utility model crucial part is to have substituted the calibration cell structure setting in the past all saturated salt solution humidity generators with temperature sensor, do not need the pneumatic type saturated salt solution humidity generator of calibration cell to there is volume little, be easy to carry, efficiency is high, as long as thermometric accuracy is enough high, can really accomplish to reappear saturated salt solution humidity true value, to environment for use without features such as specific (special) requirements.
Accompanying drawing explanation
The pneumatic type saturated salt solution humidity generator structural representation one that Fig. 1 provides for the utility model embodiment;
The pneumatic type saturated salt solution humidity generator structural representation two that Fig. 2 provides for the utility model embodiment.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing of the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiment.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite without creative work, belongs to the scope that the utility model is protected.
Unless otherwise defined, technical term used herein or scientific terminology should be and in field, have the ordinary meaning that the personage of general technical ability understands under the utility model." first " of using in the utility model patent application specification and claims, " second " and similar word do not represent any order, quantity or importance, and are just used for distinguishing different ingredients.Equally, the similar words such as " " or " " do not represent restricted number yet, and mean and have at least one." connection " or " being connected " etc. similarly word be not defined in connection physics or machinery, but can comprise electric connection, no matter be directly or indirectly." on ", D score, " left side ", " right side " etc. are only for representing relative position relation, after being described the absolute position of object and changing, this relative position relation also correspondingly changes.
As shown in Figure 1, the utility model embodiment provides a kind of pneumatic type saturated salt solution humidity generator, and it specifically can comprise foaming chamber 1, calibration chamber 2 and some air guide elements etc.
Wherein, foaming chamber 1 is connected by air guide element 31 with calibration chamber 2, and the saturated salt solution gas that foaming chamber 1 generates enters calibration chamber 2 by air guide element 31.
In the utility model embodiment, foaming chamber 1 is interior specifically can be comprised:
For realizing gas and the pretreated pretreater 11 of salt solusion moisture balance that source of the gas 4 provides;
For produce the saturator 12 of saturated moist air on moisture balance pre-service basis.
The pretreater 11 that the utility model embodiment is related and saturator 12, specifically can be closed structure and container, thereby can guarantee that aqueous vapor equilibrium process can not be subject to the interference of external environment.When concrete assembling, air guide element is enough to be placed in pretreater 11 and saturator 12 through hermetically-sealed construction;
The first temperature sensor 5, the first temperature sensors 5 that are provided with in saturator 12 for detection of salt solusion temperature are immersed in the salt solusion of saturator 12, and are connected with the controller 6 outside being arranged at foaming chamber 12;
The second temperature sensor 7, the second temperature sensors 7 that are provided with in calibration chamber 2 for detection of calibration chamber temperature are connected with controller 6;
In one embodiment, pretreater 11 specifically can be with saturator 12 container that structure is identical, transparent, have closed structure.
In one embodiment, in pretreater 11 and saturator 12, appropriate identical saturated salt solution (containing appropriate supersaturation Concentraton salt crystal) can be housed.Saturated salt solution height meets the requirement that bubble exists the shortest time in solution; Liquid level is above must keep Suitable space, and the solution spittle outputs to outside container with soft air when reducing bubble eruption.
In the utility model embodiment, pretreater 11 can be connected by air guide element 32 with saturator 12, the first end of air guide element 32 is arranged under the hermetically-sealed construction of pretreater 11 top along, gas part (specifically can as shown in Figure 1), the second end of air guide element 32 is arranged in saturator 12, the second end of air guide element 32 is provided with microporous foam head 8, and microporous foam head 8 is immersed in the salt solusion of saturator 12.
In the utility model embodiment, microporous foam head 8 can produce enough little bubble.
Pretreater 11 connects source of the gas 4 by air guide element 33, and the first end of air guide element 33 is arranged at the salt solusion bottom (but do not hinder and give vent to anger) of pretreater 11, and the second end of air guide element 33 connects source of the gas 4.
As shown in Figure 1, in the utility model embodiment, the first end of air guide element 31 can be arranged under the hermetically-sealed construction of saturator 12 top along, gas part, and the second end of air guide element 31 can connect the first end (bottom) of calibration chamber 2.
As shown in Figure 1, in the pneumatic type saturated salt solution humidity generator that the utility model embodiment provides, air-flow is from source of the gas 4, according in Fig. 1 with direction shown in the dotted line of arrow, via air guide element 33, enter pretreater 11, then enter saturator 12 via air guide element 32, the saturated moist air of saturator 12 outputs is via air guide element 31, arrive calibration chamber 2, leaving becomes tail gas after calibration chamber 2 and discharges system.
The pneumatic type saturated salt solution humidity generator that the utility model embodiment provides, rely on aerodynamic force, stir saturated salt solution and the supersaturation Concentraton salt crystal in solution (guaranteeing that salt crystal is dispersed in whole solution) in two containers (pretreater 11 and saturator 12) simultaneously.Met such condition, the utility model embodiment can guarantee that solution is all saturated under any gas source condition and temperature is uniform.
In the technical scheme that the utility model embodiment provides, salt crystal is dispersed in whole solution, and in scheme described in list of references 1, the technical scheme that salt crystal is placed on to " salt cage " or " salt bag " is completely different.Because scheme described in list of references 1 is salt crystal to be placed on to " salt cage " or " salt bag ", thereby intercepted fully contacting of salt crystal and solution, caused described in list of references 1 and occur unavoidably the undersaturated state of salt solusion in scheme.
And in the technical scheme that the utility model embodiment provides, because salt crystal fully contacts with liquid, by aerodynamic force, stir, can realize the fully saturated of salt solusion, thereby overcome the existing technological deficiency of scheme described in list of references 1.
Simultaneously, the related microporous foam head of the utility model embodiment 8 is custom-designed, the bubble size of its generation is enough little with respect to solution height, thereby can guarantee in bubble lifecycle in bubble that all gas and solution surface steam reach abundant balance (note: in this technological document, for sake of convenience, be called for short " soft air that has carried out having reached in abundant water-vapor exchange, bubble moisture balance with saturated salt solution is saturated moist air "; Obviously, " saturated moist air " is herein with the difference of " saturated moist air " of standard definition: refer in particular to " with the moisture balance state of saturated salt solution " herein, and standard definition refers to " with the moisture balance state of pure water ").Therefore, the pneumatic type saturated salt solution humidity generator that the utility model embodiment provides, under any circumstance all only needs a saturator 12 can produce satisfactory saturated moist air.This method for designing not only simplifies the structure, has increased reliability, and is the most important assurance of humidity generator accuracy.And in scheme described in list of references 1, the container of similar saturator 12 needs 2 to 5, and do not provide necessity explanation of the concrete number of how to confirm.
The related algorithm theory that the utility model embodiment is related, can the relevant paper content based on utility model people realize, and does not repeat them here.
The microporous foam head 8 that the utility model embodiment is related, can directly enter from 12 mouthfuls of saturators, is immersed in solution.Therefore, if find that the micropore in microporous foam head 8 has latch up phenomenon, can easily take out and cleans or clean with additive method from saturator 12.
The pneumatic type saturated salt solution humidity generator that the utility model embodiment provides, utilize the major part of water-vapor exchange amount to occur in the water balance process feature of mid-early stage, in pretreater 11, produce size appropriateness bubble, complete the task of most water-vapor exchange, therefore can alleviate the blockage of the micro orifice phenomenon in microporous foam head 8 in saturator 2.Its mechanism is described as follows: the gas humidity providing when source of the gas 4 is during lower than the humidity of saturated salt solution, and water-vapor exchange means that water evaporation, water evaporation result cause occurring supersaturation crystallization in the shallow top layer of solution; When this situation betides in the micropore of saturator 12 microporous foam heads 8, partially crystallizable is deposited on micro-pore wall; Long-term deposition, finally can cause micropore to stop up completely.Therefore pretreater 11 already completes most water-vapor exchange tasks, can greatly reduce in saturator 12 crystal deposition on micro-pore wall in frothing head, has also extended the plant maintenance cycle.The function and efficacy of related pretreater 11 in the utility model embodiment is non-existent in the prior art.
The pneumatic type saturated salt solution humidity generator providing at the utility model embodiment, in saturator 12, be provided with the first temperature sensor 5 for detection of salt solusion temperature, the first temperature sensor 5 is immersed in the salt solusion of saturator 12, and is connected with the controller 6 outside being arranged at foaming chamber 1.
Related the first temperature sensor 5 in the utility model embodiment, object is as follows:
Object one: table look-up and determine the nominal rh value of saturated salt solution according to solution temperature.This is also that application apparatus or the humidity generator of all saturated salt solutions is essential.Object two: according to the dewpoint temperature of relative humidity and solution temperature calculating saturated salt solution surface saturated moist air.Theoretical according to humidity, air humidity both can be expressed as relative humidity, also can be expressed as dewpoint temperature; The constant humidity main manifestations of saturated salt solution is little for relative humidity variations when temperature variation, and therefore, in textbook or physics and chemistry handbook, the humidity value of saturated salt solution all represents with relative humidity; Soft air is in transmitting procedure, and due to beginning terminal temperature, or path temperature difference can cause relative humidity different, but under " waterproof " prerequisite, the dewpoint temperature of soft air is constant all the time.According to above theory, the salt solusion temperature that the utility model records according to the first temperature sensor 5, and calculate the impact that saturated moist air dewpoint temperature is not subject to beginning, end and transmission path temperature variation, therefore also there is no need whole system to be placed in calibration cell.
Because solution temperature accuracy of measurement is depended in the accuracy of the dewpoint temperature of output soft air, so the first temperature sensor 5 accuracy requirements should be very high.This is different from application in the past.Even the first temperature sensor 5 accuracy have been proposed to very high request, but replace constant temperature with thermometric, not only greatly improved the accuracy of generator output soft air, without the significance of constant temperature, be also: simplified structure, reduced volume and reduce costs; Can be portable, be applied in scene or field; And, without the response of the humidity generator of constant temperature, almost depend on that saturated moist air leaves the time of getting rid of tail gas needs after solution, can really accomplish " plug and play " completely.
Because the humidity sensor majority being calibrated represents with relative humidity, so, the utility model utilizes the second temperature sensor 7, be arranged at the temperature sensor 7 in calibration chamber 2, record the interior temperature of calibration chamber 2 (being called for short " dry-bulb temperature "), and according to thermometer in the dewpoint temperature of saturated moist air and calibration chamber, calculate the relative humidity of " this locality " soft air by controller 6.Only have " this locality " relative humidity in calibration chamber 2 to be only the real with reference to humidity of calibration humidity sensor.
In pneumatic type saturated salt solution humidity generator described in the utility model, from source of the gas 4 through foaming chamber 1 to the series connection gas circuit of calibration chamber 2, have continuous atmospheric pressure gradient, so calibration chamber 2 must be uncovered.Uncovered calibration chamber 2 has not only facilitated the impact of humidity sensor being installed, not being subject to again ambient humidity.
In the utility model one specific embodiment, as shown in accompanying drawing 1,2, can in the gas circuit of connecting with source of the gas 4, be provided with the flowmeter 9 for detection of gas flow.
In the utility model embodiment, flow that can be based on the shown source of the gas 4 of this flowmeter 9, to monitor the chocking-up degree of microporous foam head 8: remind user need to clean microporous foam head 8 when flow significantly declines.Flowmeter 9 also provides possibility for user selects " economic operation model " (the large flow there is no need has increased unnecessary solute excessive dissolution).
As shown in accompanying drawing 1, Fig. 2, in the utility model one specific embodiment, between foaming chamber 1 and calibration chamber 2 that air guide element 31 connects, an air strainer 10 of serial connection, when holding back the overwhelming majority due to bubble eruption with the solution spittle of soft air output.
As shown in Figure 2, in the utility model one specific embodiment, it is a complete foaming chamber 1 that pretreater 11, saturator 12, filtrator 10, the first temperature sensor 5 and interconnected air guide element can be considered.And in the pneumatic type saturated salt solution humidity generator providing at the utility model embodiment, can comprise a plurality of such foaming chamber 1, thereby form foaming chamber group.
When a plurality of described foaming chamber of configuration, in the draft tube of the pretreater 11 in each foaming chamber 1 (air guide element 33), be provided with solenoid valve 13, and fill different salt solusions in different foaming chamber; Each foaming chamber has separately independently solenoid valve 13, the first temperature sensors 5 to be connected with controller 6, between a plurality of foaming chamber 1, is relation in parallel.
The reduced representation that in accompanying drawing 2, the little rectangle frame 14 of dotted line is foaming chamber, 3 bullets are abridged foaming chamber.Between foaming chamber, being relation in parallel, is series relationship between each foaming chamber and source of the gas 4, flowmeter 9, calibration chamber 2.At a time, in system, only have some foaming chamber 1 to be chosen by controller 6, after connecting with source of the gas 4, flowmeter 9 and calibration chamber 2, carry out humidity sensor calibration.
The utility model embodiment takes full advantage of " saturated salt solution gas and solution are separable " condition, with in the scheme described in control source of the gas 4 paths and a public calibration chamber 2(list of references 1, the not public calibration chamber of a plurality of humidity points) structural design, has solved being naturally connected between a plurality of humidity points.Select a plurality of humidity points, can cover the gamut of relative humidity.The linking of gamut, a plurality of humidity points, not only has the result of use same with two Pressure Humidity Generators, can also have than the humidity response faster of two Pressure Humidity Generators.
From the above, can find out, the utility model pneumatic type saturated salt solution humidity generator that provide, that do not need calibration cell, comprising by for realizing gas that source of the gas provides and the pretreated pre-service of salt solusion moisture balance itself and the foaming chamber that forms for produce the saturator of saturated moist air on moisture balance pre-service basis, the calibration chamber being connected with foaming chamber, in saturator, be provided with microporous foam head and for detection of the temperature sensor of salt solusion temperature, in calibration chamber, be provided with the second temperature sensor for detection of calibration chamber temperature.The utility model is for the distinctive shortcoming of pneumatic type saturated salt solution humidity generator, the ie in solution spittle, and frothing head blockage of the micro orifice problem has been taked a series of effective measures that are proven.It is high that the pneumatic type saturated salt solution humidity generator that the utility model provides has precision, and aerogenesis is fast, and volume is little, is easy to carry, the feature such as can work in the wild.
The above is only embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a pneumatic type saturated salt solution humidity generator, is characterized in that, comprising:
The foaming chamber and the calibration chamber that by the first air guide element, connect, the saturated moist air that described foaming chamber generates enters described calibration chamber by described the first air guide element;
Wherein, described foaming chamber comprises:
For realizing gas and the pretreated pretreating containers of salt solusion moisture balance that source of the gas provides;
For produce the saturation vessel of saturated moist air on moisture balance pre-service basis;
In described saturator, be provided with the first temperature sensor for detection of salt solusion temperature, described the first temperature sensor is immersed in the salt solusion of described saturator, and is connected with the controller outside being arranged at described foaming chamber;
In described calibration chamber, be provided with the second temperature sensor for detection of calibration chamber temperature, described the second temperature sensor is connected with described controller;
Described controller, for the salt solusion temperature detecting based on described the first temperature sensor, determine relative humidity corresponding to described salt solusion temperature, and based on described salt solusion temperature and relative humidity corresponding to described salt solusion temperature, determine the dewpoint temperature of the saturated moist air that described saturator produces; Described controller, calibration chamber temperature and the described dewpoint temperature for detecting based on described the second temperature sensor also, calculate the relative humidity of the soft air in calibration chamber, so that the rh value of the soft air based in calibration chamber carries out the calibration of humidity sensor.
2. pneumatic type saturated salt solution humidity generator as claimed in claim 1, is characterized in that:
Described pretreating containers and saturator are the container of closed structure, and same salt solusion is housed in described pretreating containers and saturator;
The first end of described the first air guide element is arranged at edge under the hermetically-sealed construction of described saturator, and the second end of described the first air guide element connects the first end of described calibration chamber.
3. pneumatic type saturated salt solution humidity generator as claimed in claim 1, is characterized in that:
Described pretreater is connected by the second air guide element with saturator, the first end of described the second air guide element is arranged at edge under the hermetically-sealed construction of described pretreater, the second end of described the second air guide element is arranged in described saturator, the second end of described the second air guide element is provided with microporous foam head, and described microporous foam head is immersed in the salt solusion bottom of described saturator.
4. pneumatic type saturated salt solution humidity generator as claimed in claim 1, is characterized in that:
Described pretreater connects described source of the gas by the 3rd air guide element, and the first end of described the 3rd air guide element is arranged at the salt solusion bottom of pretreater, and the second end of described the 3rd air guide element connects described source of the gas.
5. the pneumatic type saturated salt solution humidity generator as described in claim 1 or 4, is characterized in that, is in series with the flowmeter for detection of gas flow between described foaming chamber and source of the gas.
6. pneumatic type saturated salt solution humidity generator as claimed in claim 5, is characterized in that, in described pneumatic type saturated salt solution humidity generator, comprises foaming chamber group;
Described foaming chamber group comprises the foaming chamber of a plurality of parallel connections.
7. pneumatic type saturated salt solution humidity generator as claimed in claim 6, is characterized in that, the air source inlet place of each foaming chamber in described foaming chamber group is provided with the solenoid valve of being controlled by described controller.
8. pneumatic type saturated salt solution humidity generator as claimed in claim 6, is characterized in that, between described source of the gas, flowmeter, foaming chamber group, calibration chamber, is series relationship.
9. pneumatic type saturated salt solution humidity generator as claimed in claim 1, is characterized in that, the second end of described calibration chamber is uncovered.
10. pneumatic type saturated salt solution humidity generator as claimed in claim 1, is characterized in that, between foaming chamber and calibration chamber that described the first air guide element connects, is serially connected with filtrator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320474502.9U CN203551539U (en) | 2013-08-05 | 2013-08-05 | Pneumatic type saturated saline solution humidity generator |
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| CN201320474502.9U CN203551539U (en) | 2013-08-05 | 2013-08-05 | Pneumatic type saturated saline solution humidity generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345123A (en) * | 2013-08-05 | 2015-02-11 | 周维新 | Pneumatic saturated salt solution humidity generator |
| CN106110913A (en) * | 2016-06-17 | 2016-11-16 | 中国工程物理研究院化工材料研究所 | Standard Gases stream generation apparatus |
| CN108844888A (en) * | 2018-08-10 | 2018-11-20 | 清华大学 | A kind of scale pressure carbonization device and method after industrial solid wastes basification |
| CN108931613A (en) * | 2018-07-20 | 2018-12-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | Water surface saturation device, water surface saturator and humidity generator |
-
2013
- 2013-08-05 CN CN201320474502.9U patent/CN203551539U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345123A (en) * | 2013-08-05 | 2015-02-11 | 周维新 | Pneumatic saturated salt solution humidity generator |
| CN104345123B (en) * | 2013-08-05 | 2016-06-22 | 周维新 | A kind of pneumatic type saturated salt solution humidity generator |
| CN106110913A (en) * | 2016-06-17 | 2016-11-16 | 中国工程物理研究院化工材料研究所 | Standard Gases stream generation apparatus |
| CN108931613A (en) * | 2018-07-20 | 2018-12-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | Water surface saturation device, water surface saturator and humidity generator |
| CN108844888A (en) * | 2018-08-10 | 2018-11-20 | 清华大学 | A kind of scale pressure carbonization device and method after industrial solid wastes basification |
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