CN203437046U - In-situ regulation and control split-flow type humidity generator system - Google Patents
In-situ regulation and control split-flow type humidity generator system Download PDFInfo
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- CN203437046U CN203437046U CN201320470449.5U CN201320470449U CN203437046U CN 203437046 U CN203437046 U CN 203437046U CN 201320470449 U CN201320470449 U CN 201320470449U CN 203437046 U CN203437046 U CN 203437046U
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Abstract
The utility model discloses an in-situ regulation and control split-flow type humidity generator system. A humidity generator has a transmission distance from a test cavity, and the test cavity is large in relative humidity range and high in stability; the system comprises a carrier gas source, the carrier gas source is divided into two paths after passing through a split-flow valve, the first path is connected to a test cavity through a communicating pipeline I after passing through an electromagnetic valve flow controller I and a drying tower in sequence, the second path is connected to the test cavity through a communicating pipeline II after passing through an electromagnetic valve flow controller II and a saturator in sequence, and a humidity sensor is arranged in the test cavity; the system also comprises a PID (proportion integration differentiation) controller, and the controller is used for controlling the outputs of the two electromagnetic valve flow controllers according to the set humidity value and the output of the humidity sensor.
Description
Technical field
The utility model relates to a kind of humidity generator, relates in particular to a kind of original position regulation and control shunting humidity generator system.
Background technology
The principle of shunting humidity generator is, dry source of the gas (being generally high pure nitrogen) is divided into two parts according to a certain percentage, one tunnel enters humidification saturator, by saturated air-flow, in mixing chamber, mixed with another strand of dry gas, by adjustment, being arranged on flow control valve in two-way gas circuit adjusts the mixed proportion of moisture and dry gas and reaches the object that proportioning needs humidity gas, then enter test cavity, finally enter atmosphere.At present most this type of humidity generator equipment is integrated in saturator, mixing chamber and test cavity in an isoperibol conventionally, and experiment test can only be carried out in this integrated system; If the constant humidity gas of adjusting is drawn, there is again the impact of transmission range, cause occurring humidity and change in transmitting procedure, therefore can not meet the requirement of scientific experiment completely.
Utility model content
For the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of original position regulation and control shunting humidity generator system, and humidity generator and test cavity exist transmission range, and the relative humidity scope of test cavity is large, stability is high.
The utility model adopts the basic conception of technical scheme to be: a kind of original position regulation and control shunting humidity generator system, comprise carrier gas source, this carrier gas source is divided into two-way after flow divider, the first via is received test cavity by connecting pipeline I successively after magnetic valve flow controller I and drying tower, described test cavity is also received by connecting pipeline II successively in the second tunnel after magnetic valve flow controller II and saturator, in this cavity, is provided with humidity sensor; Described system also comprises PID controller, and this controller is controlled the output of described two magnetic valve flow controllers according to the output of the humidity value of setting and described humidity sensor.
Preferably, the length of described connecting pipeline I and connecting pipeline II is 0.5-2 rice.
Preferably, the length of described connecting pipeline I and connecting pipeline II is 2 meters.
The beneficial effects of the utility model are, by humidity sensor, gather the real-time humidity in cavity, PID controller is controlled two magnetic valve flow controllers and is come original position to regulate the flowrate proportioning of dry moisture, realized the closed-loop control to humidity in test cavity, the control range RH5-95% of relative humidity, the stability of relative humidity is better than 1.5%RH, and transmission range can reach 2 meters, and has advantages of that antijamming capability is strong, simple in structure, volume is little, environment friendly and pollution-free and use cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of original position regulation and control shunting humidity generator system, and Fig. 2 is that the humidity of original position regulation and control shunting humidity generator system is controlled stability curve map (RH45,50,55,60%, 30 minutes testing times, temperature 15-25 ℃).
In figure: 1-carrier gas source; 2-flow divider; 3-magnetic valve flow controller I; 4-magnetic valve flow controller II; 5-drying tower; 6-saturator, 7-test cavity; 8-humidity sensor; 9-connecting pipeline I; 10-connecting pipeline II.
The specific embodiment
As shown in Figure 1, the utility model is mainly comprised of magnetic valve flow controller I3, magnetic valve flow controller II4, drying tower 5, saturator 6, test cavity 7, humidity sensor 8 and PID controller.The high pure nitrogen of being exported by carrier gas source 1 is divided into two-way by flow divider 2, wherein test cavity 7 is sent into by connecting pipeline I9 successively in a road after magnetic valve flow controller I3 and drying tower 5 become dry gas, an other road successively after magnetic valve flow controller II4 and saturator 6 become saturated with moisture by sending into test cavity 7 on connecting pipeline II10, dry gas and saturated with moisture are mixed the required relative humidity of generation, in test cavity 7, be provided with humidity sensor 8 and be used for detecting humidity, PID controller is controlled the output of two magnetic valve flow controllers according to the output of the humidity value of setting and humidity sensor 8, make to test the interior moisture stable of cavity 7 in setting value.The length of connecting pipeline I9 and connecting pipeline II10 is 2 meters.Fig. 2 is that the humidity of original position regulation and control shunting humidity generator system is controlled stability curve map (RH45,50,55,60%), and the humidity of testing cavity 7 after the transmission range through 2 meters still keeps stable.
Claims (3)
1. an original position regulates and controls shunting humidity generator system, comprise carrier gas source, it is characterized in that, this carrier gas source is divided into two-way after flow divider, the first via is received test cavity by connecting pipeline I successively after magnetic valve flow controller I and drying tower, described test cavity is also received by connecting pipeline II successively in the second tunnel after magnetic valve flow controller II and saturator, in this cavity, is provided with humidity sensor; Described system also comprises PID controller, and this controller is controlled the output of described two magnetic valve flow controllers according to the output of the humidity value of setting and described humidity sensor.
2. original position regulation and control shunting humidity generator system according to claim 1, is characterized in that, the length of described connecting pipeline I and connecting pipeline II is 0.5-2 rice.
3. original position regulation and control shunting humidity generator system according to claim 2, is characterized in that, the length of described connecting pipeline I and connecting pipeline II is 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470449.5U CN203437046U (en) | 2013-07-24 | 2013-07-24 | In-situ regulation and control split-flow type humidity generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470449.5U CN203437046U (en) | 2013-07-24 | 2013-07-24 | In-situ regulation and control split-flow type humidity generator system |
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| Publication Number | Publication Date |
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| CN203437046U true CN203437046U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320470449.5U Expired - Fee Related CN203437046U (en) | 2013-07-24 | 2013-07-24 | In-situ regulation and control split-flow type humidity generator system |
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| CN (1) | CN203437046U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107672A (en) * | 2014-07-22 | 2014-10-22 | 中国科学院化学研究所 | Mineral aerosol generating system for laboratory |
| CN104155415A (en) * | 2014-08-20 | 2014-11-19 | 国家电网公司 | Method for rapidly obtaining constant gas humidity |
| CN107228923A (en) * | 2017-06-27 | 2017-10-03 | 中国科学院化学研究所 | A kind of preparation method of standard gaseous nitrous acid and generation system |
| CN107748585A (en) * | 2017-12-15 | 2018-03-02 | 中环天仪（天津）气象仪器有限公司 | A kind of portable humidity device1 and humidity generation method |
| CN109343617A (en) * | 2018-10-15 | 2019-02-15 | 睦尼试验设备(上海)有限公司 | A kind of constant temperature and humidity air generator |
| CN111398349A (en) * | 2020-04-02 | 2020-07-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | Flow proportioning device, dew point generator and flow proportioning method |
| CN112577885A (en) * | 2020-11-27 | 2021-03-30 | 南京大学 | Humidity control in-situ microscopic infrared characterization method for micro plastic |
| CN113702230A (en) * | 2021-09-27 | 2021-11-26 | 清华大学 | Friction testing machine |
-
2013
- 2013-07-24 CN CN201320470449.5U patent/CN203437046U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107672A (en) * | 2014-07-22 | 2014-10-22 | 中国科学院化学研究所 | Mineral aerosol generating system for laboratory |
| CN104107672B (en) * | 2014-07-22 | 2016-04-13 | 中国科学院化学研究所 | A kind of use for laboratory mineral aerosol generation systems |
| CN104155415A (en) * | 2014-08-20 | 2014-11-19 | 国家电网公司 | Method for rapidly obtaining constant gas humidity |
| CN107228923A (en) * | 2017-06-27 | 2017-10-03 | 中国科学院化学研究所 | A kind of preparation method of standard gaseous nitrous acid and generation system |
| CN107228923B (en) * | 2017-06-27 | 2024-04-05 | 中国科学院化学研究所 | Preparation method and generation system of standard gaseous nitrous acid |
| CN107748585A (en) * | 2017-12-15 | 2018-03-02 | 中环天仪（天津）气象仪器有限公司 | A kind of portable humidity device1 and humidity generation method |
| CN109343617A (en) * | 2018-10-15 | 2019-02-15 | 睦尼试验设备(上海)有限公司 | A kind of constant temperature and humidity air generator |
| CN111398349A (en) * | 2020-04-02 | 2020-07-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | Flow proportioning device, dew point generator and flow proportioning method |
| CN112577885A (en) * | 2020-11-27 | 2021-03-30 | 南京大学 | Humidity control in-situ microscopic infrared characterization method for micro plastic |
| CN112577885B (en) * | 2020-11-27 | 2021-12-17 | 南京大学 | Humidity control in-situ microscopic infrared characterization method for micro plastic |
| CN113702230A (en) * | 2021-09-27 | 2021-11-26 | 清华大学 | Friction testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20170724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |