CN206152657U - Low humidity humidity generating device - Google Patents
Low humidity humidity generating device Download PDFInfo
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- CN206152657U CN206152657U CN201621175953.2U CN201621175953U CN206152657U CN 206152657 U CN206152657 U CN 206152657U CN 201621175953 U CN201621175953 U CN 201621175953U CN 206152657 U CN206152657 U CN 206152657U
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Abstract
The utility model discloses a low humidity humidity generating device, include: compression gas holder, first relief pressure valve, second relief pressure valve, first gas transmission pipeline and second gas transmission pipeline, water -vapo(u)r saturation ware and mixing tank. First relief pressure valve sets gradually on the pipeline that links to each other in the gas outlet of compression gas holder with the second relief pressure valve. First gas transmission pipeline one end, second gas transmission pipeline one end are linked together with the gas outlet of second relief pressure valve. The water -vapo(u)r saturation ware sets up on first gas -supply pipe way. Mixing tank is linked together with the first gas transmission pipeline other end, the second gas transmission pipeline other end. First relief pressure valve can step down to the drying gas flow of compression gas holder output with the second relief pressure valve and press to suitable pressure to in importing first gas transmission pipeline, second gas transmission pipeline respectively, drying gas flow in the first gas transmission pipeline through behind the water -vapo(u)r saturation ware moistening treatment again with second gas transmission pipeline in dry gas body hybrid processing in mixing tank, alright use and obtain water vapor content as other low humidity water vapour of PPM level.
Description
Technical field
The utility model is related to a kind of steam generating means, more particularly, to a kind of low humidity humidity device1.
Background technology
Traditional steam generating means includes shunting humidity generator and partial pressure type humidity generator.Wherein, shunting
Humidity generator is, as source of the gas, to be pressed this burst of dry gas with two mass flow controllers using dry air or nitrogen
Different proportion is divided into exactly two strands, and wherein one is humidified at a certain temperature by saturator, makes saturated with moisture (i.e.
Relative humidity is 100%RH), then mix with another strand of dry gas at that same temperature.Adjusted by two mass flowmenters
The flow of saturated with moisture and dry gas, is just obtained the constant humidity air-flow of different relative humidity.
Partial pressure type humidity generator is as source of the gas, in stable height after compressor compresses air using dry air
Saturation under pressure condition, then at that same temperature expansion is depressurized to stable low-pressure state, you can obtain constant humidity source of the gas.Its is wet
Angle value can be determined according to saturation room temperature, high-pressure and low pressure.By changing high-pressure or changing low pressure,
Can be obtained by the constant humidity air-flow of different relative humidity.
Although two kinds of humidity generators can produce the constant humidity air-flow that RH range is (1～98) %RH, pass
The shunting or partial pressure type humidity generator of system cannot produce moisture content for ppm levels (1 × 10-6) low humidity steam.
The content of the invention
Based on this, the utility model is the defect for overcoming prior art, there is provided a kind of low humidity humidity device1, its energy
Enough produce low humidity steam of the steam volumn concentration for ppm levels.
Its technical scheme is as follows：Low humidity humidity device1, including：Compression air accumulator, the first pressure-reducing valve and the second decompression
Valve, the pipeline that the gas outlet that first pressure-reducing valve is successively set on the compression air accumulator with second pressure-reducing valve is connected
On；First air delivering pipeline and the second air delivering pipeline, described first air delivering pipeline one end, described second air delivering pipeline one end with it is described
The gas outlet of the second pressure-reducing valve is connected；Water-vapo(u)r saturation device, the water-vapo(u)r saturation device is arranged on first air delivering pipeline, institute
Stating water-vapo(u)r saturation device is used for the air-flow humidification process in first air delivering pipeline；And stainless steel, the stainless steel with
The first air delivering pipeline other end, the second air delivering pipeline other end are connected.
Wherein in one embodiment, first flow regulating valve is provided with first air delivering pipeline, described second is defeated
Second flow regulating valve is provided with air pipe.
Wherein in one embodiment, the low humidity humidity device1 also includes being arranged on second pressure-reducing valve and institute
The three-way flow regulating valve between the first air delivering pipeline, second air delivering pipeline is stated, the gas outlet of second pressure-reducing valve leads to
Piping is connected with the air inlet of the three-way flow regulating valve, one of gas outlet of the three-way flow regulating valve and institute
State the first air delivering pipeline to be connected, another gas outlet of the three-way flow regulating valve is connected with second air delivering pipeline.
Wherein in one embodiment, the low humidity humidity device1 also includes first pressure table and second pressure table,
The first pressure table, the second pressure table are arranged on the air inlet of the compression air accumulator and the three-way flow regulating valve
On connected pipeline, the first pressure table is used to detecting the air-flow pressure force value of the first pressure-reducing valve outlet side, described second
Pressure gauge is used to detect the air-flow pressure force value of the second pressure-reducing valve outlet side.
Wherein in one embodiment, the gas pressure installed in the compression air accumulator is 5MPa～15Mpa, purity is
99.999% high pure nitrogen.
Wherein in one embodiment, the low humidity humidity device1 also includes metering valve, and the metering valve is arranged on
On first air delivering pipeline and between the water-vapo(u)r saturation device and the stainless steel, the metering valve is used for institute
The flow expansion step-down stated in the first air delivering pipeline is processed.
Wherein in one embodiment, the 3rd pressure gauge, the 3rd pressure gauge are provided with first air delivering pipeline
For detecting the air-flow pressure force value of the metering valve outlet side.
Wherein in one embodiment, the water-vapo(u)r saturation device include shell body be arranged at it is multiple in the shell body
Dividing plate, the air inlet of the shell body is located at the top of the shell body, and the gas outlet of the shell body is located at the shell body
Bottom, the air inlet of the shell body is connected with the mechanism that adds water by pipeline；The dividing plate joins end to end and sets in zigzag
Put, the dividing plate is connected near one end of the shell body air inlet with the shell body madial wall, is disposed with the dividing plate
Several through holes.
Wherein in one embodiment, the angle between the adjacent dividing plate is 30～70 degree.
Wherein in one embodiment, first air delivering pipeline is communicated to the stainless steel with first direction, described
Second air delivering pipeline is communicated to the stainless steel with second direction, the first direction be oppositely arranged with the second direction or
Person is arranged in a crossed manner.
The advantage or principle of preceding solution are illustrated below：
1st, above-mentioned low humidity humidity device1, the first pressure-reducing valve and the second pressure-reducing valve can be to compressing air accumulator output
Dry gas stream carries out step-down process so that the dry gas stream of compression air accumulator output is depressurized to suitable pressure, and respectively enters
To in the first air delivering pipeline and the second air delivering pipeline, the dry gas stream in the first air delivering pipeline is humidified through water-vapo(u)r saturation device
After process again with the second air delivering pipeline in dry gas in stainless steel mixed processing, just can obtain moisture content is
The low humidity steam of PPM ranks.In addition, being dropped to the air-flow for compressing air accumulator output with the second pressure-reducing valve by the first pressure-reducing valve
Pressure process, just can accordingly increase the pressure and the first air delivering pipeline, the second air delivering pipeline for compressing the compressed gas in air accumulator
The difference of the pressure of middle air-flow, so can guarantee that air velocity in the first air delivering pipeline, the second air delivering pipeline, and can be in compression
In air accumulator there is low humidity air-flow in the more dry gas of compression storage to be ready for use on.
2nd, three-way flow regulating valve can control to compress the air-flow that the gas outlet of air accumulator is exported into the first air delivering pipeline
Flow, and the air flow rate exported into the second air delivering pipeline, i.e., just can control first defeated by three-way flow regulating valve
The ratio of the dry gas stream exported in the wet gas current and the second air delivering pipeline that go out output in air pipe, so as to just adjust
The moisture content of the low humidity air-flow obtained in stainless steel.
3rd, the wet gas current in the first air delivering pipeline is carried out by metering valve expanding step-down process, and causes the first appendix
The dry gas stream in wet gas current and the second air delivering pipeline obtained by road carries out in the mixing container mixed processing, just can obtain
Moisture content is the low humidity steam of PPM ranks.
4th, water-vapo(u)r saturation device includes shell body and the multiple dividing plates being arranged in shell body.The air inlet of shell body is located at outer
The top of housing, the gas outlet of shell body is located at the bottom of shell body, and the air inlet of shell body is connected with plus water dispenser by pipeline
Structure.Dividing plate joins end to end and arranges in zigzag, and dividing plate is connected near one end of shell body air inlet with shell body madial wall, every
Several through holes are disposed with plate.Angle between adjacent separator is 30～70 degree.When needing to add water in water-vapo(u)r saturation device, add water
Mechanism opening valve adds a small amount of water (3～10 drop) by the outside enclosure interior of shell body air inlet, and after adding water, add water mechanism
Close valve.Water, to dirty, all dividing plates in shell body is infiltrated along dividing plate.The dividing plate of moistening can increase nitrogen stream
With moisture area.During dry gas stream shell body in the first air delivering pipeline, the dividing plate of moistening is just by the first air delivering pipeline
Dry gas stream humidification process.
5th, the first air delivering pipeline is communicated to stainless steel with first direction, and the second air delivering pipeline is communicated to mixed with second direction
Close container.First direction is oppositely arranged or arranged in a crossed manner with second direction.Thus, the first air delivering pipeline is exported to stainless steel
In wet gas current can be easy to export the dry gas stream into stainless steel with the second air delivering pipeline and be sufficiently mixed.
Description of the drawings
Fig. 1 is low humidity humidity device1 structural representation described in the utility model embodiment one；
Fig. 2 is low humidity humidity device1 structural representation described in the utility model embodiment two；
Fig. 3 is the structural representation of the water-vapo(u)r saturation device in low humidity humidity device1 described in the utility model embodiment.
Description of reference numerals：
11st, air accumulator is compressed, the 12, first pressure-reducing valve, the 13, second pressure-reducing valve, 14, first pressure table, 15, second pressure
Table, the 20, first air delivering pipeline, 21, first flow regulating valve, the 22, the 3rd pressure gauge, the 30, second air delivering pipeline, 31, second
Adjustable valve, 40, water-vapo(u)r saturation device, 41, shell body, 42, dividing plate, 421, through hole, 43, add water mechanism, 44, air inlet, 45, go out
Gas port, 50, stainless steel, 60, three-way flow regulating valve, 70, metering valve.
Specific embodiment
Embodiment of the present utility model is described in detail below：
As shown in figure 1, the low humidity humidity device1 described in embodiment of the present utility model, including：Compression air accumulator 11,
First pressure-reducing valve 12, the second pressure-reducing valve 13, the first air delivering pipeline 20 and the second air delivering pipeline 30, water-vapo(u)r saturation device 40 and mix appearance
Device 50.The gas outlet that first pressure-reducing valve 12 is successively set on the compression air accumulator 11 with second pressure-reducing valve 13 is connected
Pipeline on.Described one end of first air delivering pipeline 20, described one end of second air delivering pipeline 30 go out with second pressure-reducing valve 13
Gas port is connected.The water-vapo(u)r saturation device 40 is arranged on first air delivering pipeline 20, and the water-vapo(u)r saturation device 40 is used for will
Air-flow humidification process in first air delivering pipeline 20.The stainless steel 50 and the other end of the first air delivering pipeline 20,
The other end of second air delivering pipeline 30 is connected.
Above-mentioned low humidity humidity device1, the first pressure-reducing valve 12 can be defeated to compressing air accumulator 11 with the second pressure-reducing valve 13
The dry gas stream for going out carries out step-down process so that the dry gas stream of the compression output of air accumulator 11 is depressurized to suitable pressure, and divides
In not entering into the first air delivering pipeline 20 and the second air delivering pipeline 30, the dry gas stream in the first air delivering pipeline 20 is through water
After the humidification process of vapour saturator 40 again with the second air delivering pipeline 30 in dry gas in stainless steel 50 mixed processing, just may be used
To obtain moisture content as the low humidity steam of PPM ranks.
Further, since the first pressure-reducing valve 12 can drop with the second pressure-reducing valve 13 to the air-flow for compressing the output of air accumulator 11
Pressure process, just can accordingly increase the pressure and the first air delivering pipeline 20, the second gas transmission for compressing the compressed gas in air accumulator 11
The difference of the pressure of air-flow in pipeline 30, so can guarantee that air velocity in the first air delivering pipeline 20, the second air delivering pipeline 30, and
The more dry gas of compression storage low humidity air-flow can occur to be ready for use in compression air accumulator 11.
In the present embodiment, first flow regulating valve 21, second gas transmission are provided with first air delivering pipeline 20
Second flow regulating valve 31 is provided with pipeline 30.Exported to first by the adjustment compression air accumulator 11 of first flow regulating valve 21
Air flow rate in air delivering pipeline 20, and exported to the second gas transmission by the adjustment compression air accumulator 11 of second flow regulating valve 31
Air flow rate in pipeline 30, just can play the wet gas current and the second appendix for going out output in the first air delivering pipeline 20 of control
The ratio of the dry gas stream exported in road 30, so as to the steam that just can adjust the low humidity air-flow obtained in stainless steel 50 contains
Amount.
Fig. 2 is referred to, the low humidity humidity device1 also includes being arranged on second pressure-reducing valve 13 and described first
Three-way flow regulating valve 60 between air delivering pipeline 20, second air delivering pipeline 30, the gas outlet of second pressure-reducing valve 13
It is connected with the air inlet of the three-way flow regulating valve 60 by pipeline, one of outlet of the three-way flow regulating valve 60
Mouthful it is connected with first air delivering pipeline 20, another gas outlet of the three-way flow regulating valve 60 and second appendix
Road 30 is connected.Three-way flow regulating valve 60 can control to compress the air-flow stream that air accumulator 11 is exported into the first air delivering pipeline 20
Amount, and the air flow rate exported into the second air delivering pipeline 30, i.e., just can control first by three-way flow regulating valve 60
The ratio of the dry gas stream exported in the wet gas current and the second air delivering pipeline 30 that go out output in air delivering pipeline 20, so as to just can
Enough adjust the moisture content of the low humidity air-flow obtained in stainless steel 50.
In the present embodiment, the low humidity humidity device1 also includes first pressure table 14 and second pressure table 15, institute
State first pressure table 14, the second pressure table 15 and be arranged on the compression air accumulator 11 and the three-way flow regulating valve 60
On the connected pipeline of air inlet, the first pressure table 14 is used to detect the stream pressure of the outlet side of the first pressure-reducing valve 12
Value, the second pressure table 15 is used to detect the air-flow pressure force value of the outlet side of the second pressure-reducing valve 13.First pressure-reducing valve 12 will
The reduced pressure of the dry gas stream exported in air accumulator 11 is compressed to 1.3MPa～2.0Mpa, after the first pressure-reducing valve 12 is depressured
Air-flow pressure force value is obtained by the detection of first pressure table 14.Second pressure-reducing valve 13 is by the gas Jing after the reduced output voltage of the first pressure-reducing valve 12
The pressure of stream continues to be reduced to 0.15MPa～1.2Mpa, and the air-flow pressure force value after the second pressure-reducing valve 13 is depressured passes through second pressure
The detection of table 15 is obtained.
In the present embodiment, the gas pressure installed in the compression air accumulator 11 is 5MPa～15Mpa, purity is
99.999% high pure nitrogen.
In the present embodiment, the low humidity humidity device1 also includes metering valve 70, and the metering valve 70 is arranged on institute
State on the first air delivering pipeline 20 and between the water-vapo(u)r saturation device 40 and the stainless steel 50, the metering valve 70 is used
Flow expansion step-down in first air delivering pipeline 20 is processed.The one-way flow of metering valve 70, is prevented from the first gas transmission
Air-flow reverse flow in pipeline 20.Metering valve 70 can also accurately adjust the first air delivering pipeline 20 and export into stainless steel 50
Air-flow pressure, according to double pressure unboiled water vapour principles, play a part of adjust air-flow in moisture content.First air delivering pipeline 20
Dry gas stream is transformed into after wet gas current by the humidification of water-vapo(u)r saturation device 40 and is delivered in stainless steel 50, the second air delivering pipeline 30
Dry gas stream is delivered in stainless steel 50 the wet gas current mixed processing with humidification such that it is able to further in adjustment wet gas current
Moisture content.It is so visible, carry out expanding step-down process by the wet gas current in 70 pairs of the first air delivering pipelines 20 of metering valve, and
So that the wet gas current obtained by the first air delivering pipeline 20 enters with the dry gas stream in the second air delivering pipeline 30 in stainless steel 50
Row mixed processing, just can obtain the low humidity steam that moisture content is PPM ranks.
In the present embodiment, the 3rd pressure gauge 22, the 3rd pressure gauge 22 are provided with first air delivering pipeline 20
For detecting the air-flow pressure force value of the outlet side of the metering valve 70.Metering valve 70 is by the pressure drop of the wet gas current in the first appendix
As little as 0.11MPa～0.15Mpa, pressure value is obtained by the detection of the 3rd pressure gauge 22 at this.
Refer to Fig. 3, the water-vapo(u)r saturation device 40 include shell body 41 be arranged in the shell body 41 it is multiple every
Plate 42.The air inlet 44 of the shell body 41 is located at the top of the shell body 41, and the gas outlet 45 of the shell body 41 is located at
The bottom of the shell body 41, the air inlet 44 of the shell body 41 is connected with the mechanism 43 that adds water by pipeline.The dividing plate 42
Join end to end, the dividing plate 42 is arranged along the axial direction of shell body 41 in zigzag, and the dividing plate 42 is near the shell body
One end of 41 air inlet 44 is connected with the madial wall of the shell body 41, and several through holes 421 are disposed with the dividing plate 42.Phase
Angle between the adjacent dividing plate 42 is 30～70 degree.When needing to add water in water-vapo(u)r saturation device 40, the mechanism 43 that adds water opens valve
A small amount of water (3～10 drop) is added to the inside of shell body 41 by the air inlet 44 of shell body 41, after adding water, the mechanism 43 that adds water closes
Valve.Water, to dirty, all dividing plates 42 in shell body 41 is infiltrated along dividing plate 42.The dividing plate 42 of moistening can increase nitrogen
Air-flow and moisture area.During dry gas stream shell body 41 in the first air delivering pipeline 20, the dividing plate 42 of moistening is just by first
Dry gas stream humidification process in air delivering pipeline 20.
Referring again to Fig. 1 or 2, first air delivering pipeline 20 is communicated to the stainless steel 50 with first direction, described
Second air delivering pipeline 30 is communicated to the stainless steel 50 with second direction.The first direction is relative with the second direction to be set
Put or arranged in a crossed manner.In the present embodiment, the first air delivering pipeline 20 is connected with the top of stainless steel 50, the second air delivering pipeline
30 are connected with the sidepiece of stainless steel 50 or bottom.Or, the first air delivering pipeline 20 is connected with the sidepiece of stainless steel 50, and second
Air delivering pipeline 30 is connected with the other side at the top, bottom or stainless steel 50 of stainless steel 50.Thus, the first air delivering pipeline
20 wet gas currents exported into stainless steel 50 can be easy to export the drying into stainless steel 50 with the second air delivering pipeline 30
Air-flow is sufficiently mixed.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.
Claims (10)
1. low humidity humidity device1, it is characterised in that include：
Compression air accumulator, the first pressure-reducing valve and the second pressure-reducing valve, first pressure-reducing valve sets gradually with second pressure-reducing valve
On the connected pipeline in the gas outlet of the compression air accumulator；
First air delivering pipeline and the second air delivering pipeline, described first air delivering pipeline one end, described second air delivering pipeline one end and institute
The gas outlet for stating the second pressure-reducing valve is connected；
Water-vapo(u)r saturation device, the water-vapo(u)r saturation device is arranged on first air delivering pipeline, and the water-vapo(u)r saturation device is used for institute
State the air-flow humidification process in the first air delivering pipeline；And
Stainless steel, the stainless steel is connected with the first air delivering pipeline other end, the second air delivering pipeline other end
It is logical.
2. low humidity humidity device1 according to claim 1, it is characterised in that be provided with first air delivering pipeline
First flow regulating valve, on second air delivering pipeline second flow regulating valve is provided with.
3. low humidity humidity device1 according to claim 1, it is characterised in that also including being arranged on second decompression
Three-way flow regulating valve between valve and first air delivering pipeline, second air delivering pipeline, second pressure-reducing valve goes out
Gas port is connected by pipeline with the air inlet of the three-way flow regulating valve, one of outlet of the three-way flow regulating valve
Mouthful it is connected with first air delivering pipeline, another gas outlet of the three-way flow regulating valve and the second air delivering pipeline phase
Even.
4. low humidity humidity device1 according to claim 3, it is characterised in that also including first pressure table and the second pressure
Power table, the first pressure table, the second pressure table are arranged on the compression air accumulator and the three-way flow regulating valve
On the connected pipeline of air inlet, the first pressure table is used to detect the air-flow pressure force value of the first pressure-reducing valve outlet side, institute
Second pressure table is stated for detecting the air-flow pressure force value of the second pressure-reducing valve outlet side.
5. low humidity humidity device1 according to claim 1, it is characterised in that the gas installed in the compression air accumulator
Body pressure is 5MPa～15Mpa, the high pure nitrogen that purity is 99.999%.
6. low humidity humidity device1 according to claim 1, it is characterised in that also including metering valve, the metering valve
It is arranged on first air delivering pipeline and between the water-vapo(u)r saturation device and the stainless steel, the metering valve is used
Flow expansion step-down in first air delivering pipeline is processed.
7. low humidity humidity device1 according to claim 6, it is characterised in that be provided with first air delivering pipeline
3rd pressure gauge, the 3rd pressure gauge is used to detect the air-flow pressure force value of the metering valve outlet side.
8. low humidity humidity device1 according to claim 1, it is characterised in that the water-vapo(u)r saturation device includes shell body
With the multiple dividing plates being arranged in the shell body, the air inlet of the shell body is located at the top of the shell body, described outer
The gas outlet of housing is located at the bottom of the shell body, and the air inlet of the shell body is connected with the mechanism that adds water by pipeline；Institute
State dividing plate to join end to end and arrange in zigzag, the dividing plate is in one end of the shell body air inlet with the shell body
Side wall is connected, and several through holes are disposed with the dividing plate.
9. low humidity humidity device1 according to claim 8, it is characterised in that the angle between the adjacent dividing plate is
30～70 degree.
10. low humidity humidity device1 according to claim 1, it is characterised in that first air delivering pipeline is with first
Direction is communicated to the stainless steel, and second air delivering pipeline is communicated to the stainless steel with second direction, and described first
Direction is oppositely arranged or arranged in a crossed manner with the second direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175953.2U CN206152657U (en) | 2016-10-26 | 2016-10-26 | Low humidity humidity generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175953.2U CN206152657U (en) | 2016-10-26 | 2016-10-26 | Low humidity humidity generating device |
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| Publication Number | Publication Date |
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| CN206152657U true CN206152657U (en) | 2017-05-10 |
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ID=58657125
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| CN201621175953.2U Active CN206152657U (en) | 2016-10-26 | 2016-10-26 | Low humidity humidity generating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508945A (en) * | 2018-05-02 | 2018-09-07 | 郑州迪邦科技有限公司 | Saturated humidity generating means |
| CN108828144A (en) * | 2018-05-02 | 2018-11-16 | 郑州迪邦科技有限公司 | Humidity device1 |
| CN108970430A (en) * | 2018-09-10 | 2018-12-11 | 广州赛宝计量检测中心服务有限公司 | Portable low humidity steam generating device |
| CN109060931A (en) * | 2018-09-10 | 2018-12-21 | 广州赛宝计量检测中心服务有限公司 | Vapour analysis instrument calibrating installation and calibration method |
| CN110456848A (en) * | 2019-08-30 | 2019-11-15 | 南京信息工程大学 | A kind of portable humidity generator and detecting and controlling system |
-
2016
- 2016-10-26 CN CN201621175953.2U patent/CN206152657U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508945A (en) * | 2018-05-02 | 2018-09-07 | 郑州迪邦科技有限公司 | Saturated humidity generating means |
| CN108828144A (en) * | 2018-05-02 | 2018-11-16 | 郑州迪邦科技有限公司 | Humidity device1 |
| CN108970430A (en) * | 2018-09-10 | 2018-12-11 | 广州赛宝计量检测中心服务有限公司 | Portable low humidity steam generating device |
| CN109060931A (en) * | 2018-09-10 | 2018-12-21 | 广州赛宝计量检测中心服务有限公司 | Vapour analysis instrument calibrating installation and calibration method |
| CN110456848A (en) * | 2019-08-30 | 2019-11-15 | 南京信息工程大学 | A kind of portable humidity generator and detecting and controlling system |
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