CN105159344A - Saturated salt type humidity generator capable of adjusting humidity rapidly - Google Patents
Saturated salt type humidity generator capable of adjusting humidity rapidly Download PDFInfo
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- CN105159344A CN105159344A CN201510500694.XA CN201510500694A CN105159344A CN 105159344 A CN105159344 A CN 105159344A CN 201510500694 A CN201510500694 A CN 201510500694A CN 105159344 A CN105159344 A CN 105159344A
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- calibration cell
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- humidity
- saturated salt
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Abstract
The invention relates to a saturated salt type humidity generator capable of adjusting the humidity rapidly. The generator comprises constant temperature bath and an upper cover plate, the upper cover plate is mounted in an upper opening of the constant temperature bath and seals the constant temperature bath, the upper cover plate is provided with two plate-through sleeve joints which serve as a gas inlet and a gas outlet respectively, the gas inlet is connected with a gas inlet pipe via the plate-through sleeve joint at the outer side of the constant temperature bath, the gas inlet is connected with a bubbler via the plate-through sleeve joint at the inner side of the constant temperature bath, a bubbling port of the bubbler is placed at the lowest liquid level of the constant temperature bath, the gas outlet is connected with a gas outlet pipe via the plate-through sleeve joint at the outer side of the constant temperature bath, the gas outlet pipe is connected with a dry gas inlet pipe via a sleeve T-branch pipe, a gas outlet end of the gas outlet pipe is provided with a gas mixer, a gas inlet end of the gas inlet pipe and a gas inlet end of the dry gas inlet pipe are provided with gas quality-flow controllers respectively, and the constant temperature bath is internally provided with a thermal-arrest type electric heating coil. The saturated salt type humidity generator has the advantages of high humidity control precision, high adjustment and control speed, simple and convenient use, and compact structure.
Description
Technical field
The present invention relates to a kind of can the saturated salt formula humidity generator of quick adjustment humidity.
Background technology
Humidity is produced and one of main environmental parameter in sphere of life, and therefore humidity generator has a wide range of applications at industrial and scientific research field.Among the various humidity generator that can produce known humidity value, saturated salt humidity generator obtains generally use owing to having the advantage such as simple to operation, cheap.But, Present Domestic saturated salt humidity generator used is made into independent vitreous bottle usually for obtaining the gas of single humidity point, because bottle is easy to the variable effect by environment temperature, constant temperature can not be ensured, thus impact there is the control accuracy of the humidity of gas, existing method can only produce the humidity of specified point simultaneously, can not realize the continuous adjustment for humidity.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and provide that a kind of degree of regulation is high, reaction velocity is fast, simple and compact for structure, can continuously humidity fixed point can the saturated salt formula humidity generator of quick adjustment humidity.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of can the saturated salt formula humidity generator of quick adjustment humidity, comprise calibration cell and upper cover plate, the upper opening that described upper cover plate is arranged on described calibration cell seals described calibration cell, described upper cover plate is provided with two threading ferrule fittings respectively as air intake opening and gas outlet, described air intake opening is connected with draft tube by threading ferrule fitting outside calibration cell, described air intake opening is connected with bubbler by threading ferrule fitting inside calibration cell, the bubbling mouth of described bubbler is arranged on the minimum liquid level place of calibration cell, described gas outlet is connected with escape pipe by threading ferrule fitting outside calibration cell, described escape pipe is connected with dry gas inlet pipe by cutting sleeve triplet pipe, the outlet side of described escape pipe is provided with gas mixer, the inlet end of described draft tube and the inlet end of dry gas inlet pipe are equipped with gas mass flow controller, heat collecting type Electrothermal ring is provided with in described calibration cell, the bottom of described calibration cell is provided with the stirrer paddle of stirring motor drive in the below of heat collecting type Electrothermal ring.
Be provided with temperature control panel outside described calibration cell, described temperature control panel is connected with heat collecting type Electrothermal ring by PID controller.
Described upper cover plate be also provided with the filling opening of supplementary saturated salt solution and balance the blowdown valve of pressure in calibration cell.
The float level device for the saturated salt solution amount in monitoring calibration cell is provided with outside described calibration cell.
Described draft tube is provided with the first retaining valve preventing gas backstreaming, described dry gas inlet pipe is provided with the second retaining valve preventing gas backstreaming, the outlet of described escape pipe is provided with the 3rd retaining valve preventing gas backstreaming.
Described gas mass flow controller is cutting ferrule type tubular gas mass flow controller.
Described upper cover plate and calibration cell outside be provided with corresponding lockset, described upper cover plate calibration cell is by the locked sealing of lockset.
Owing to adopting such scheme, the present invention is by utilizing gas mass flow controller accurately to control to enter the gas that is humidified in calibration cell and accurately controlling constant temperature the temperature inside the box by PID temperature controller, thus obtain determining humidity be saturated gas carrier after conflux with the gas through super-dry of another road constant flow after enter gas mass flow controller and mix, controlled by the flow proportional the controlling dry gas continuous Rapid Variable Design of humidity within the scope of 10% ~ 90%RH that can realize giving vent to anger.
In sum, it is high that the present invention has humid control precision, and governing response speed is fast, uses simple and fast, the advantage of compact conformation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of upper cover plate of the present invention;
Fig. 3 is the structural representation of solution calibration cell of the present invention.
In figure, 1. upper cover plate, 2. lockset, 3. power switch, 4. float level device, 5. temperature control panel, 6 connecting lines, the 7, the 3rd retaining valve, 8, the second retaining valve, 15. first retaining valves, 9. threading ferrule fitting, 10. cutting ferrule type tubular gas mixer, 11 cutting sleeve triplet pipes, 12. cutting ferrule ball valves, 13. blowdown valves, 14. filling openings, 16. bubblers, 17. orifice plates, 18 heat collecting type heating collars, 19. stirrer paddles, 20. stirring motors.
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of this patent.
As Fig. 1, shown in 2, a kind of can the saturated salt formula humidity generator of quick adjustment humidity, comprise calibration cell and upper cover plate, the upper opening that described upper cover plate 1 is arranged on described calibration cell seals described calibration cell, described upper cover plate 1 is provided with two threading ferrule fittings 9 respectively as air intake opening and gas outlet, described air intake opening is connected with draft tube by threading ferrule fitting outside calibration cell, described draft tube is provided with the first retaining valve 15 preventing gas backstreaming, described air intake opening is connected with bubbler 16 by threading ferrule fitting inside calibration cell, the bubbling mouth of described bubbler 16 is arranged on the minimum liquid level place of calibration cell,
Described gas outlet is connected with escape pipe by threading ferrule fitting outside calibration cell, described escape pipe is provided with cutting ferrule ball valve 12 on entrance point, the outlet of described escape pipe is provided with the 3rd retaining valve 7 preventing gas backstreaming, described escape pipe is connected with dry gas inlet pipe by cutting sleeve triplet pipe 11, described dry gas inlet pipe is provided with the second retaining valve 8 preventing gas backstreaming, the outlet side of described escape pipe is provided with cutting ferrule type tubular gas mixer 10, the inlet end of described draft tube and the inlet end of dry gas inlet pipe are equipped with gas mass flow controller, orifice plate 17 and the heat collecting type Electrothermal ring 18 in even water vapor flow field is provided with in described calibration cell, described orifice plate 17 is arranged on below described threading cutting ferrule gas outlet, the bottom of described calibration cell is provided with the stirrer paddle 19 of stirring motor 20 drive in the below of heat collecting type Electrothermal ring 18.
Be provided with temperature control panel 5 and power switch 3 outside described calibration cell, described temperature control panel 5 is connected with heat collecting type Electrothermal ring 18 by PID controller, thus accurately controls the temperature of heat collecting type Electrothermal ring 18.Described upper cover plate 1 be also provided with the filling opening 14 of supplementary saturated salt solution and balance the blowdown valve 13 of pressure in calibration cell.Be provided with the float level device 4 for the saturated salt solution amount in monitoring calibration cell outside described calibration cell, be used for monitoring the saturated salt solution amount in calibration cell, prevent solution dry combustion method.Described upper cover plate 1 and calibration cell outside be provided with corresponding lockset 2, described upper cover plate calibration cell is by the locked sealing of lockset 2.
Dry carrier gas (the such as N that the draft tube of upper cover plate 1 is controlled by mass flow controller
2) with certain flow successively through the first retaining valve 15, air intake opening and bubbler 16 enter in calibration cell be humidified saturated, then enter in cutting sleeve triplet pipe 11 by gas outlet, cutting ferrule ball valve 12, another road dry gas controls flow through gas mass flow controller and enters cutting sleeve triplet pipe 11 through the second retaining valve 8 simultaneously, enter cutting ferrule type tubular gas mixer 10 after converging with humidification saturated gas, gas is discharged through the 3rd retaining valve 7 after mixing in cutting ferrule type tubular gas mixer.The inner bag of calibration cell is stainless steel, adopts heat collecting type heating collar 18 to heat;
The principle work of this device, turns on the power switch 3, and temperature control control panel 5 arranges temperature required rear heat collecting type heating collar 18 and starts heating, stirring motor 20 is synchronously started working, and drives stirrer paddle 19 to operate.Monitored the liquid level in calibration cell by liquid level gauge 4, in filling opening 14, add the saturated aqueous solution of specific inorganic salts (as MgCl
2saturated solution) to specifying liquid level.First build upper cover plate 1 during use, locked upper cover plate lockset 2, the inlet end A of draft tube is connected with corresponding mass flow controller respectively with the inlet end B of dry gas inlet pipe, after temperature constant, opens cutting ferrule ball valve 12; The humidity value X corresponding with saturated salt kind and temperature can be obtained at the outlet side C of escape pipe by the control of temperature and gas flow.By regulating the uninterrupted holding the gas mass flow controller be connected with B, outlet C gas humidity can be realized in the continuous regulation and control lower than the humidity value below humidity X value scope.In like manner, by selecting appropriate Inorganic Salts and holding temperature, the continuous regulation and control in 10% ~ 90%RH scope humidity can be realized.
Embodiment set forth in the present invention is only a part of embodiment of the present invention, and the embodiment of not all.Based on the embodiment in the present invention, those skilled in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Claims (7)
1. one kind can the saturated salt formula humidity generator of quick adjustment humidity, comprise calibration cell and upper cover plate, it is characterized in that: the upper opening that described upper cover plate is arranged on described calibration cell seals described calibration cell, described upper cover plate is provided with two threading ferrule fittings respectively as air intake opening and gas outlet, described air intake opening is connected with draft tube by threading ferrule fitting outside calibration cell, described air intake opening is connected with bubbler by threading ferrule fitting inside calibration cell, the bubbling mouth of described bubbler is arranged on the minimum liquid level place of calibration cell, described gas outlet is connected with escape pipe by threading ferrule fitting outside calibration cell, described escape pipe is connected with dry gas inlet pipe by cutting sleeve triplet pipe, the outlet side of described escape pipe is provided with gas mixer, the inlet end of described draft tube and the inlet end of dry gas inlet pipe are equipped with gas mass flow controller, heat collecting type Electrothermal ring is provided with in described calibration cell, the bottom of described calibration cell is provided with the stirrer paddle of stirring motor drive in the below of heat collecting type Electrothermal ring.
2. according to claim 1 can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: be provided with temperature control panel outside described calibration cell, described temperature control panel is connected with heat collecting type Electrothermal ring by PID controller.
3. according to claim 2 can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: the blowdown valve described upper cover plate being also provided with pressure in the filling opening of supplementary saturated salt solution and balance calibration cell.
4. according to claim 3 can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: outside described calibration cell, be provided with the float level device for the saturated salt solution amount in monitoring calibration cell.
5. according to one of Claims 1-4 Suo Shu can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: described draft tube is provided with the first retaining valve preventing gas backstreaming, described dry gas inlet pipe is provided with the second retaining valve preventing gas backstreaming, the outlet of described escape pipe is provided with the 3rd retaining valve preventing gas backstreaming.
6. according to claim 1 can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: described gas mixer is cutting ferrule type tubular gas mixer.
7. according to claim 1 can the saturated salt formula humidity generator of quick adjustment humidity, it is characterized in that: described upper cover plate and calibration cell outside be provided with corresponding lockset, described upper cover plate calibration cell is by the locked sealing of lockset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500694.XA CN105159344A (en) | 2015-08-14 | 2015-08-14 | Saturated salt type humidity generator capable of adjusting humidity rapidly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510500694.XA CN105159344A (en) | 2015-08-14 | 2015-08-14 | Saturated salt type humidity generator capable of adjusting humidity rapidly |
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| CN105159344A true CN105159344A (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106501135A (en) * | 2016-10-31 | 2017-03-15 | 中国科学技术大学 | A kind of aerosol is into nuclear reactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291660Y (en) * | 1996-09-25 | 1998-09-16 | 电子工业部第四十九研究所 | Saturated salt type humidity generator capable of adjusting temperature |
| US20060027670A1 (en) * | 2004-08-04 | 2006-02-09 | Amichai Shdaimah | Humidity-controlled chamber for a thermogravimetric instrument |
| CN101722063A (en) * | 2009-12-04 | 2010-06-09 | 河南科技大学 | Environmental humidity control method and device for sealed cavity |
| CN202735152U (en) * | 2012-07-20 | 2013-02-13 | 苏州市建筑科学研究院有限公司 | Temperature and humidity controlling dynamic air dispensing device |
| CN103396761A (en) * | 2013-08-01 | 2013-11-20 | 中国人民大学 | Method for adjusting relative humidity |
-
2015
- 2015-08-14 CN CN201510500694.XA patent/CN105159344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291660Y (en) * | 1996-09-25 | 1998-09-16 | 电子工业部第四十九研究所 | Saturated salt type humidity generator capable of adjusting temperature |
| US20060027670A1 (en) * | 2004-08-04 | 2006-02-09 | Amichai Shdaimah | Humidity-controlled chamber for a thermogravimetric instrument |
| CN101722063A (en) * | 2009-12-04 | 2010-06-09 | 河南科技大学 | Environmental humidity control method and device for sealed cavity |
| CN202735152U (en) * | 2012-07-20 | 2013-02-13 | 苏州市建筑科学研究院有限公司 | Temperature and humidity controlling dynamic air dispensing device |
| CN103396761A (en) * | 2013-08-01 | 2013-11-20 | 中国人民大学 | Method for adjusting relative humidity |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106501135A (en) * | 2016-10-31 | 2017-03-15 | 中国科学技术大学 | A kind of aerosol is into nuclear reactor |
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Application publication date: 20151216 |