CN106647898A - Gas temperature, humidity and VOC concentration adjusting device and method - Google Patents
Gas temperature, humidity and VOC concentration adjusting device and method Download PDFInfo
- Publication number
- CN106647898A CN106647898A CN201710049664.0A CN201710049664A CN106647898A CN 106647898 A CN106647898 A CN 106647898A CN 201710049664 A CN201710049664 A CN 201710049664A CN 106647898 A CN106647898 A CN 106647898A
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- voc
- gas
- humidity
- voc concentration
- control module
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention provides a gas concentration adjusting device and method. The device comprises a constant-temperature water bath (5), a gas mixing tank (6) and a control module. The gas mixing tank (6) is arranged in the constant-temperature water bath (5). A heater is disposed in the constant-temperature water bath (5). A humidity sensor, a temperature sensor and a VOC concentration sensor are disposed in the gas mixing tank (6). A gas inlet, a humidification circulation hole, a VOC concentration circulation hole, and an exporting tube (7) for outputting mixed gases are arranged on the gas mixing tank (6). The gas inlet is connected with a dehumidification device (2). The humidification circulation hole is connected with a humidification device (3). The VOC concentration circulation hole is connected with a VOC adding device (4). The dehumidification device (2) is connected to an importing tube (1) through an air pump. The gas temperature, humidity and VOC concentration adjusting device and method can configure a control mode and a control parameter according to a specific experimental parameter, and have high control precision, reliability, repeatability and stability.
Description
Technical field
The present invention relates to gas concentration control field, more particularly to manner concentration control apparatus and method.
Background technology
Related adjusting means existing at present is controlled just for single adjustment of gas concentration or individually humiture is adjusted
Section control.To be controlled gas temperature, humidity and VOC concentration, need to use two covering devices so that testing stand becomes
It is loaded down with trivial details.If additionally, the temperature, humidity and VOC concentration to gas is successively adjusted, the parameter for first adjusting can be caused derived final
Deviate sets requirement in gas, cause experiment deviation occur.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of at a constant temperature to gas
Plus VOC concentration, humidification, dehydrating unit and method, VOC concentration and humidity work(are increased on the gas mixing box in water bath with thermostatic control
Can, make stationary temperature gas mixing box be transformed into humiture VOC concentration control cabinet.
Technical scheme：
A kind of gas temperature, humidity and VOC concentration adjusting devices, including constant temperature water bath, gas mixing box and control module；Institute
State gas mixing box to be arranged in the constant temperature water bath；Heater is provided with the constant temperature water bath；It is mixed in the gas
Humidity sensor, temperature sensor and VOC concentration sensors are provided with mould assembling；Air inlet is provided with the gas mixing box
The delivery line of gas after hole, humidification circulation port, VOC concentration circulatings hole and output mixing；The air admission hole connects dehydrating unit,
The humidification circulation port connection damping device, the VOC concentration circulatings hole connection plus VOC devices；The dehydrating unit passes through gas
Pump is connected with ingress pipe；
The humidity sensor, temperature sensor and VOC concentration sensors connect respectively monitoring computer, and by its measured value
Send to the monitoring computer；
The control module respectively with the damping device, dehydrating unit, heater and add VOC devices be connected；The monitoring meter
Calculation machine is connected with the control module；Compared according to the setting value that the measured value for receiving is internal with it, obtain control signal, and
Export to the control module, control the dehydrating unit, damping device heater and add VOC devices humidified, dehumidified, add
Heat adds VOC work.
The dehydrating unit includes the refrigeration plant and condensation space of condensation water vapor in air；The condensation space is provided with
The flask being connected with air pump.
The flask is two.
The damping device includes air pump and Drexel bottle；The Drexel bottle of the damping device is placed in the constant temperature water bath
（5）In.
Described plus VOC devices include air pump and Drexel bottle；The Drexel bottle of described plus VOC devices is placed in the constant temperature water bath
In.
A kind of gas temperature, humidity and VOC concentration regulating methods, including step：
Step 1：Humidity sensor, temperature sensor and VOC concentration sensors gather respectively the temperature of gas in gas mixing box
Degree, humidity and VOC concentration are simultaneously converted into the measured value of temperature, humidity and VOC concentration, and transmit to monitoring by control module
Computer；
Step 2：The computing contrast of the setting value in the measured value for receiving and its is judged whether to need to add by monitoring computer
Wet, dehumidifying, heating add VOC, and according to judged result output control signal；
Step 3：Control module according to monitoring computer export control signal, control damping device, dehydrating unit, heater and
Plus VOC devices are humidified, are dehumidified, being heated or being added VOC work.
When the measured value that the monitoring computer is received exceedes the bound arranged in it, output control signal passes through
Control module control start-stop humidification, dehumidification process and increase VOC concentration processes.
Beneficial effect：The gas temperature of the present invention, humidity and VOC concentration control apparatus and method can be according to specific experiments
Parameter is controlled the configuration of pattern and control parameter, and control accuracy is high, reliability, repeatability and good stability.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows gas temperature, humidity and the VOC density Adjusting System figures of the present invention.
Fig. 2 shows gas temperature, humidity and the VOC density Adjusting System schematic diagrames of the present invention.
Fig. 3 shows that gas temperature, humidity and the VOC concentration of the present invention adjusts control flow chart.
The reference of above-mentioned accompanying drawing is as follows：
1st, ingress pipe, 2, dehydrating unit, 3, damping device, 4, plus VOC devices, 5, constant temperature water bath, 6, gas mixing box, 7, lead
Outlet pipe.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 shows the system schematic of the present invention.Wherein, air regulating device of the invention includes：Ingress pipe 1,
Dehydrating unit 2, damping device 3, plus VOC devices 4, constant temperature water bath 5, gas mixing box 6 and delivery line 7.
Ingress pipe 1 is connected with air pump entrance；The outlet of air pump is connected with the entrance of dehydrating unit 2；Dehydrating unit 2 goes out
Mouth is connected with gas mixing box 6；Damping device 3 and add VOC devices 4 to be connected with gas mixing box 6 respectively, formed and locally followed
Ring.Gas mixing box 6 is connected the output of mixed gas with delivery line 7.
Dehydrating unit 2 includes condensation space and refrigeration plant, and the air entered by ingress pipe is entered in condensation space
Flask, by the cooling of refrigeration plant, makes the water vapor condensation in air, in the flask that condensed water is stayed in condensation space, from
And reach the purpose of dehumidifying.By two flasks the vapor in air can be made fully to condense, improve effect on moisture extraction.Refrigeration plant
It is made up of evaporimeter, compressor, capillary and condenser etc..Wherein evaporimeter is placed in condensation space, compressor, capillary and
Condenser etc. is placed in outside condensation space.
Damping device 3 includes air pump and Drexel bottle, and air pump starts, gas by the Drexel bottle equipped with water, so as to increase gas
The content of vapor, plays humidification in body.Damping device 3 and gas mixing box 6 are connected by tracheae, form a local
Closed gas circuit.The Drexel bottle of damping device 3 is placed in constant temperature water bath 5, gas temperature is kept within the specific limits.
Plus VOC devices 4 include air pump and Drexel bottle, air pump starts, gas by the Drexel bottle equipped with VOC solution, so as to
Increase the content of VOC in gas, play a part of to increase VOC concentration in gas.Plus VOC devices 4 and gas mixing box 6 pass through gas
Pipe connects, and forms the closed gas circuit of a local.Plus the Drexel bottle of VOC devices 4 is equally placed in constant temperature water bath 5.
Constant temperature water bath 5 includes heater and water circulating pump, makes the water in tank keep setting by the start and stop of heater
Temperature, water circulating pump moves up by water transport in tank, is uniformly distributed temperature.Simultaneously when connecting with external source, can be square
Just the water in tank is changed.
Gas mixing box 6 is provided with 8 holes, comprising 3 pairs of totally 6 air inlet/outlets and 2 gauge holes.6 are entered outlet
Hole is respectively air admission hole, gas outlet, VOC concentration circulatings hole and humidification circulation port.Gas mixes buffering in gas mixing box, makes
Control is more accurate.
Fig. 2 shows control section system schematic, including monitoring computer and control module, control module on the one hand with
Sensor connects, and the data conversion that sensor is read passes to monitoring computer, such as temperature, humidity, VOC into computer language
Concentration, on the other hand receive monitoring computer by the various operational orders of user of serial communication as plus thermal output, humidification output,
Dehumidifying output, plus VOC outputs etc..Control module is passed respectively with monitoring computer, temperature sensor, humidity sensor, VOC concentration
Sensor, heater, plus VOC devices 4, damping device 3 and dehydrating unit 2 electrically connect.
Humidity sensor, temperature sensor and VOC concentration sensors are all disposed within gas mixing box 6, mixed by gas
2 gauge holes in mould assembling 6 are put into, and wire is drawn and sealed by the copper sleeve and Pneumatic quick connector of gauge hole.Humidity
Sensor, temperature sensor and VOC concentration sensors are electrically connected with control module.
Wherein, monitor computer to adopt graphically, displays temperature, humidity and VOC concentration curves and by various behaviour
Make to notify control module by serial communication, and receive the various parameters of control module return.
The method that the employing said system of the present invention carries out humid control, comprises the following steps：
Temperature sensor, humidity sensor and VOC concentration sensors gather in gas mixing box the temperature of gas, humidity respectively with
And VOC concentration, control module collecting temperature sensor, humidity sensor and VOC concentration sensor output signals, by controlling mould
The output signal of the humidity sensor of collection, temperature sensor and VOC concentration sensors is converted to humidity, temperature and VOC by block
The measured value of concentration；
Control module is connected by usb interfaces with monitoring computer, is communicated.Monitoring computer obtains wet from control module
The measured value of degree, temperature and VOC concentration, the computing contrast that computer passes through the setting value in measured value and its, judges whether to need
Humidify, dehumidify, heating or adding VOC, according to judged result output control signal；Control module is according to monitoring computer export
Control signal, control damping device, dehydrating unit, heater and add VOC devices humidified, dehumidified, being heated or add VOC works
Make.Simultaneously historical data is stored on computers, when the parameter of observing and controlling exceedes the bound for arranging, control module output
Carry out corresponding start-stop heating process, humidification, dehumidification process and increase VOC concentration processes, start-stop heating process includes：When
Controlled output is opened after heating signal, heater, after controlled output closes heating signal, closes heater；Gas temperature
It is as shown in Figure 3 that degree, humidity and VOC concentration adjust control flow.
Plus during thermal output, heater；During humidification output, the air pump of damping device is started working, and makes gas mixing box
Interior gas flows through the Drexel bottle equipped with water increases its water vapour content, then flows back to gas mixing portion；During dehumidifying output, open
Refrigeration plant, the air to importing carries out cooling and dehumidifying, and condensed water stays in condensation space；Plus the output of VOC concentration, plus VOC devices
Air pump start working, making the gas in gas mixing box flow through the Drexel bottle equipped with VOC solution increases its VOC concentration, then flows
Gas mixing box is returned, after controlled output is closed adds VOC concentration signals, plus the air pump of VOC devices quits work；
The working condition of the data of collection and each several part device is uploaded to monitoring computer by control module, carry out showing in real time and
History data store.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of gas temperature, humidity and VOC concentration adjusting devices, it is characterised in that：Including constant temperature water bath（5）, gas mix
Mould assembling（6）And control module；The gas mixing box（6）It is arranged on the constant temperature water bath（5）It is interior；In the constant temperature water bath
（5）Inside it is provided with heater；In the gas mixing box（6）Inside it is provided with humidity sensor, temperature sensor and VOC concentration sensing
Device；In the gas mixing box（6）It is provided with gas after air admission hole, humidification circulation port, VOC concentration circulatings hole and output mixing
Delivery line（7）；The air admission hole connects dehydrating unit（2）, the humidification circulation port connection damping device（3）, the VOC is dense
The connection of degree circulation port plus VOC devices（4）；The dehydrating unit（2）By air pump and ingress pipe（1）Connection；
The humidity sensor, temperature sensor and VOC concentration sensors connect respectively monitoring computer, and by its measured value
Send to the monitoring computer；
The control module respectively with the damping device（3）, dehydrating unit（2）, heater and add VOC devices（4）Connection；Institute
State monitoring computer to be connected with the control module；Compared according to the setting value that the measured value for receiving is internal with it, controlled
Signal processed, and export to the control module, control the dehydrating unit（2）, damping device（3）Heater and plus VOC devices
（4）Humidified, dehumidified, being heated or being added VOC work.
2. gas temperature according to claim 1, humidity and VOC concentration adjusting devices, it is characterised in that：The dehumidifying dress
Put（2）Including the refrigeration plant and condensation space of condensation water vapor in air；The condensation space is provided with the burning being connected with air pump
Bottle.
3. gas temperature according to claim 2, humidity and VOC concentration adjusting devices, it is characterised in that：The flask is
Two.
4. gas temperature according to claim 1, humidity and VOC concentration adjusting devices, it is characterised in that：The humidification dress
Put（3）Including air pump and Drexel bottle；The damping device（3）Drexel bottle be placed in the constant temperature water bath（5）In.
5. gas temperature according to claim 1, humidity and VOC concentration adjusting devices, it is characterised in that：Described plus VOC
Device（4）Including air pump and Drexel bottle；Described plus VOC devices（4）Drexel bottle be placed in the constant temperature water bath（5）In.
6. a kind of gas temperature described in application claim 1, humidity and VOC concentration regulating methods, it is characterised in that：Including step
Suddenly：
Step 1：Humidity sensor, temperature sensor and VOC concentration sensors gather respectively the temperature of gas in gas mixing box
Degree, humidity and VOC concentration are simultaneously converted into the measured value of temperature, humidity and VOC concentration, and transmit to monitoring by control module
Computer；
Step 2：The computing contrast of the setting value in the measured value for receiving and its is judged whether to need to add by monitoring computer
Wet, dehumidifying, heating add VOC, and according to judged result output control signal；
Step 3：Control module according to monitoring computer export control signal, control damping device, dehydrating unit, heater and
Plus VOC devices are humidified, are dehumidified, being heated or being added VOC work.
7. gas temperature according to claim 6, humidity and VOC concentration regulating methods, it is characterised in that：The monitoring meter
When the measured value that calculation machine is received exceedes the bound arranged in it, output control signal controls start-stop and adds by control module
Wet process, dehumidification process and increase VOC concentration processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049664.0A CN106647898B (en) | 2017-01-23 | 2017-01-23 | A kind of gas temperature, humidity and VOC concentration adjusting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049664.0A CN106647898B (en) | 2017-01-23 | 2017-01-23 | A kind of gas temperature, humidity and VOC concentration adjusting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106647898A true CN106647898A (en) | 2017-05-10 |
| CN106647898B CN106647898B (en) | 2019-03-05 |
Family
ID=58841130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710049664.0A Active CN106647898B (en) | 2017-01-23 | 2017-01-23 | A kind of gas temperature, humidity and VOC concentration adjusting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106647898B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079613A (en) * | 2017-12-26 | 2018-05-29 | 北京航空航天大学 | A kind of constant temperature humidifies cold hydrazine |
| CN115248609A (en) * | 2021-12-21 | 2022-10-28 | 山东建筑大学 | System and method for detecting temperature and humidity of climate chamber through release amount of VOCs (volatile organic compounds) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050193957A1 (en) * | 2001-12-14 | 2005-09-08 | Shigeru Oshima | Animal breeding system and utilization of the system |
| US20080203178A1 (en) * | 2004-03-01 | 2008-08-28 | Neil John Barrett | Method and Apparatus for Environmental Control |
| CN101644666A (en) * | 2009-09-04 | 2010-02-10 | 清华大学 | Experimental device for measuring formaldehyde adsorption property of adsorbent and measuring method thereof |
| CN204462111U (en) * | 2015-02-06 | 2015-07-08 | 北京市劳动保护科学研究所 | A kind of organic contaminant integrated test electricity testing device |
| CN204619953U (en) * | 2015-05-22 | 2015-09-09 | 西安科技大学 | Photo catalysis reactor and gas-phase photocatalysis reaction test system |
-
2017
- 2017-01-23 CN CN201710049664.0A patent/CN106647898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050193957A1 (en) * | 2001-12-14 | 2005-09-08 | Shigeru Oshima | Animal breeding system and utilization of the system |
| US20080203178A1 (en) * | 2004-03-01 | 2008-08-28 | Neil John Barrett | Method and Apparatus for Environmental Control |
| CN101644666A (en) * | 2009-09-04 | 2010-02-10 | 清华大学 | Experimental device for measuring formaldehyde adsorption property of adsorbent and measuring method thereof |
| CN204462111U (en) * | 2015-02-06 | 2015-07-08 | 北京市劳动保护科学研究所 | A kind of organic contaminant integrated test electricity testing device |
| CN204619953U (en) * | 2015-05-22 | 2015-09-09 | 西安科技大学 | Photo catalysis reactor and gas-phase photocatalysis reaction test system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079613A (en) * | 2017-12-26 | 2018-05-29 | 北京航空航天大学 | A kind of constant temperature humidifies cold hydrazine |
| CN115248609A (en) * | 2021-12-21 | 2022-10-28 | 山东建筑大学 | System and method for detecting temperature and humidity of climate chamber through release amount of VOCs (volatile organic compounds) |
| CN115248609B (en) * | 2021-12-21 | 2023-06-30 | 山东建筑大学 | VOCs release amount detection climate room temperature and humidity control system and method |
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| Publication number | Publication date |
|---|---|
| CN106647898B (en) | 2019-03-05 |
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