CN207503077U - A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory - Google Patents
A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory Download PDFInfo
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- CN207503077U CN207503077U CN201721532413.XU CN201721532413U CN207503077U CN 207503077 U CN207503077 U CN 207503077U CN 201721532413 U CN201721532413 U CN 201721532413U CN 207503077 U CN207503077 U CN 207503077U
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Abstract
A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory, it is characterised in that：Including moving towards sequentially connected air source, compressed air drying decompressor, humidity control system, humidity control system and constant temperature and humidity gas outlet and parameter acquisition control system by air-flow.The advantages of the utility model, is as follows：Operation principle is reasonable, easy to operate, it can be achieved that humiture and flow to air are adjusted；Structure is relatively simple, good portability, can be widely applied to various test occasions；Operating path is independent, is attached on other experimental provisions and matches, improve the service efficiency of single equipment, while also reduces the fringe cost of equipment；Using PID control, the high-precision control of temperature and humidity is realized, system response time is fast.
Description
Technical field
The utility model is related to use for laboratory miniature constant temperature constant humidity compressed air source unit, it is specifically a kind of can be with other experimental provisions
Connection, and provide the device of constant-temperature constant-humidity environment for it.
Background technology
Constant-temperature constant-humidity environment is widely used in the fields such as environment measuring, inspection and quarantine, electronics, chemical industry, biomedicine, special
It is not in detection field, constant-temperature constant-humidity environment is the basic demand of test environment.
Constant-temperature constant-humidity environment is the basic condition of many scientific researches and production practices, is had to the humiture of experimental enviroment
The experiment of special requirement, stable humiture（Constant temperature and humidity）Condition helps to improve the scientific rationality of experiment.The training of plant
It educates and must have suitable environmental condition, the constant temperature and humidity condition of reasonable design can create nature item according to the wish of people
The artificial environment that part is difficult to realize, so as to which the development of plant, growth be made to be completely in controllable state.In UV assisted cryogenic silicon chips
In Direct Bonding research, constant-temperature constant-humidity environment is an important influence factor, and stable temperature and humidity conditions can make silicon chip key
It closes intensity to be declined, but still maintains higher bond strength, so as to improve the reliability of experiment.In biomedical research
In, constant-temperature constant-humidity environment is the important foundation condition of cell culture, biochemical indicator detection.
Constant temperature and humidity compressed air source unit can provide constant temperature and humidity for the humiture required experiment device to experimental enviroment
Gaseous environment, and the use that can easily link together with various types of experimental provision, can significantly increase list
The service efficiency of one instrument.
Currently, it is more for the research of large-scale constant temperature and humidity machine, and air-conditioning system field is had focused largely on, and for being applicable in
In laboratory miniature constant temperature constant humidity compressed air source unit research still in blank stage, there is not yet the small-sized perseverance suitable for laboratory
Related patents and the open source literature report of constant temperature and humidity compressed air source unit.
Invention content
The utility model is the research blank for the constant temperature and humidity compressed air source unit for being suitable for laboratory at this stage, and is designed
A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory.The present apparatus is simple and reasonable, disclosure satisfy that different type
Experimental facilities requirement, and provide constant-temperature constant-humidity environment for it.
The purpose of this utility model can be achieved through the following technical solutions：A kind of miniature constant temperature suitable for laboratory
Constant humidity compressed air source unit, including moving towards sequentially connected air source by air-flow, compressed air drying decompressor, humidity control system,
Humidity control system and constant temperature and humidity gas outlet and parameter acquisition control system.
The temperature regulating and controlling system includes the refrigeration branch drawn by compressed air drying decompressor and heats branch
Road, the refrigerator that two branches are carried out with the main air mixing chamber of convergence mixing and is arranged in refrigeration branch, pressure limiting empty
Valve, flow controller are arranged on flow controller, air heater, the air heater temperature sensor of heating branch road.
The humidity control system includes the dry and comfortable air passage drawn by main air mixing chamber and humidifying air branch,
The resistance control valve that two branches are carried out with the secondary air mixing chamber of convergence mixing and is arranged on dry and comfortable air passage, if
Put flow controller on humidifying air branch road, humidification water tank, be humidified in water tank be provided with electric heater, bubble dish and
Water tank temperature sensor；Pressure sensor, Temperature Humidity Sensor are provided on secondary air mixing chamber；Constant temperature and humidity gas goes out
Gas port is arranged on secondary air mixing chamber；
The parameter acquisition control system includes main air mixing chamber data acquisition controller, the secondary air mixing number of chambers
According to acquisition controller, serial server and computer.
PID controller is connected on air heater on heating branch road；Flow control on humidifying air branch road
PID controller is connected on device；PID controller is connected on the electric heater being humidified in water tank, these three PID controllers are equal
It is connected with main air mixing chamber data acquisition controller.Each PID controller is to be to entirely controlling according to PID control principle
System carries out bias adjustment, so as to make the actual value of controlled variable consistent with the predetermined value of technological requirement.
The pressure sensor is vacuum type pressure sensor.
The equal adjustable gas flow of the resistance control valve, mass flow controller.
The parameter acquisition control can be directly realized by by connected computer, easy to operation.
The device is furnished with pull rod and idler wheel, to improve its portability.
The operation principle of the utility model device is as follows：During experiment, compressed air in compressed-air-storing bottle from
Compressed air inlet port enters, compressed to be air-dried decompressor pretreatment；Compressed air after dry decompression is by branched pipe
Road allows to cool to certain temperature into compressed air refrigeration device all the way, and another way, which enters air heater, makes it be heated to centainly
Temperature, two-way compressed air enters main air mixing chamber according to a certain percentage under the adjusting control of parameter acquisition control system
Abundant mixing, mixed air reach the temperature of setting；Compressed air after temperature is adjusted enters two level sky by two pipelines
Gas mixing chamber, a routing resistance control valve adjust its flow and are directly entered secondary air mixing chamber, and another way is passed into temperature
Its humidity is made to reach the saturated humidity at a certain temperature in adjustable water tank, under the adjusting control of parameter acquisition control system absolutely
Dry air and saturated humidity air enter the abundant mixing of secondary air mixing chamber according to a certain percentage, and mixed air, which reaches, to be set
Fixed temperature and humidity；The air for reaching setting humiture is flowed out through gas outlet, and constant temperature and humidity gas is provided for other experimental rigs
Body environment.
The utility model device to the adjusting of air humidity is realized by the temperature of water in regulating tank, this is base
In the different principle of the corresponding saturated air humidity of different temperatures.
The advantages of the utility model device, is as follows：Operation principle is reasonable, it is easy to operate, it can be achieved that the humiture of air with
And flow is adjusted；Structure is relatively simple, good portability, can be widely applied to various test occasions；Operating path is independent, can
It is connected on other experimental provisions and matches, improve the service efficiency of single equipment, while also reduce the additional of equipment
Cost；Using PID control, the high-precision control of temperature and humidity is realized, system response time is fast.
Description of the drawings
Fig. 1 is constant temperature and humidity compressed air source unit structure diagram.
In figure：1st, air source, 2, compressed air drying decompressor, 3, compressed air refrigeration device, 4, pressure limiting exhaust-valve, 5, matter
Measure flow controller, 6, main air mixing chamber, 7, PID controller, 8, mass flow controller, 9, resistance control valve, 10,
Temperature sensor, 11, water tank, 12, gas outlet, 13, secondary air mixing chamber, 14, pressure sensor, 15, Temperature Humidity Sensor,
16th, mass flow controller, 17, air heater, 18, PID controller, 19, temperature sensor, 20, main air mixing chamber
Data acquisition controller, 21, computer, 22, serial server, 23, PID controller, 24, electric heater, 25, bubble dish,
26th, secondary air mixing chamber data acquisition controller.
Specific embodiment
The utility model is described further its structure below in conjunction with attached drawing.
As shown in Figure 1：A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory, including connecting successively by air-flow trend
The air source 1 connect, compressed air drying decompressor 2, humidity control system, humidity control system and constant temperature and humidity gas go out
Gas port 12 and parameter acquisition control system,
The temperature regulating and controlling system includes the refrigeration branch drawn by compressed air drying decompressor 2 and heats branch
Road, the refrigerator 3 that two branches are carried out with the main air mixing chamber 6 of convergence mixing and is arranged in refrigeration branch, pressure limiting are arranged
Empty valve 4, flow controller 5, be arranged on the flow controller 16 of heating branch road, air heater 17, temperature sensor 19,
PID controller 18 is connected on air heater 17；
The humidity control system includes the dry and comfortable air passage drawn by main air mixing chamber 6 and humidifying air branch
Road, the resistance regulation that two branches are carried out with the secondary air mixing chamber 13 of convergence mixing and is arranged on dry and comfortable air passage
Valve 9 is arranged on flow controller 8, the humidification water tank 11 of humidifying air branch road, electric heater is provided with being humidified in water tank
24th, bubble dish 25 and water tank temperature sensor 10, are connected with PID controller 7 on flow controller 8, on electric heater 24
It is connected with PID controller 23；Pressure sensor 14, Temperature Humidity Sensor 15 are provided on secondary air mixing chamber 13；Constant temperature
Constant humidity gas outlet 12 is arranged on secondary air mixing chamber 13；
The parameter acquisition control system includes main air mixing chamber data acquisition controller 20, secondary air mixing chamber
Data acquisition controller 26, serial server 22 and computer 21.
During experiment, compressed air is flowed into from air source 1, and the compressed decompressor 2 that is air-dried reduces its pressure simultaneously
It removes its contained humidity and reaches adiabatic drying；From compressed air drying decompressor 2 come out after air by two branch lines
Compressed air refrigeration device 3 and air heater 17 are respectively enterd, under the control and regulation of parameter acquisition control system, PID control
The operating power of air heater 17 can be adjusted in device 18, so as to play the role of adjusting hot air temperature, through temperature control
Treated cold air and hot-air are sufficiently mixed in main air mixing chamber 6 and reach the temperature of setting according to a certain percentage
Degree；The air of certain temperature after being come out from the mixing chamber 6 flows out respectively through two branch lines, wherein a bypass line
In air it is carried out by mass flow controller 8 to enter the water tank containing electric heater 24 and bubble dish 25 after flow-rate adjustment
In 11, PID controller 7 can play the role of being digitized mass flow controller 8 adjusting, and PID controller 23 can be with
The operating power of electric heater 24 in water tank is adjusted, so as to play the role of the temperature of water in regulating tank, and then
Realize the purpose of adjusting air humidity, parameter acquisition control system distinguishes the air mass flow in two branch lines of adjusting control,
The air after humidification and the air not being humidified is made to be sufficiently mixed and reach in secondary air mixing chamber 13 according to a certain percentage and set
Fixed humidity and temperature；The air of certain humiture in the mixing chamber 13 is flowed out through gas outlet 12.
Claims (5)
1. a kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory, it is characterised in that：Including connecting successively by air-flow trend
The air source connect, compressed air drying decompressor, humidity control system, humidity control system and constant temperature and humidity gas outlet
Mouth and parameter acquisition control system,
The temperature regulating and controlling system includes the refrigeration branch drawn by compressed air drying decompressor and heats branch, right
Refrigerator, pressure limiting exhaust-valve, the stream that two branches carry out the main air mixing chamber of convergence mixing and are arranged in refrigeration branch
Amount controller is arranged on flow controller, air heater, the air heater temperature sensor of heating branch road；
The humidity control system includes the dry and comfortable air passage drawn by main air mixing chamber and humidifying air branch, to two
The resistance control valve that branch carries out the secondary air mixing chamber of convergence mixing and is arranged on dry and comfortable air passage, is arranged on
Flow controller, the humidification water tank of humidifying air branch road, electric heater, bubble dish and water tank temperature are provided with being humidified in water tank
Spend sensor；Pressure sensor, Temperature Humidity Sensor are provided on secondary air mixing chamber；Constant temperature and humidity gas outlet is set
It puts on secondary air mixing chamber；
The parameter acquisition control system includes main air mixing chamber data acquisition controller, secondary air mixing chamber data are adopted
Collect controller, serial server and computer.
2. the miniature constant temperature constant humidity compressed air source unit according to claim 1 suitable for laboratory, it is characterised in that：It is heating
PID controller is connected on the air heater of branch road；PID controls are connected on flow controller on humidifying air branch road
Device processed；PID controller is connected on the electric heater being humidified in water tank, these three PID controllers are mixed with main air
Room data acquisition controller is connected.
3. the miniature constant temperature constant humidity compressed air source unit according to claim 1 suitable for laboratory, it is characterised in that：The pressure
Force snesor is vacuum type pressure sensor.
4. the miniature constant temperature constant humidity compressed air source unit according to claim 1 suitable for laboratory, it is characterised in that：The resistance
The equal adjustable gas flow of force regulating valve, mass flow controller.
5. the miniature constant temperature constant humidity compressed air source unit according to claim 1 suitable for laboratory, it is characterised in that：The device
Equipped with pull rod and idler wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532413.XU CN207503077U (en) | 2017-11-16 | 2017-11-16 | A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532413.XU CN207503077U (en) | 2017-11-16 | 2017-11-16 | A kind of miniature constant temperature constant humidity compressed air source unit suitable for laboratory |
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| CN207503077U true CN207503077U (en) | 2018-06-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110470562A (en) * | 2019-08-19 | 2019-11-19 | 天津同阳科技发展有限公司 | A kind of humidity conditioner, air quality monitor and method |
| CN113009114A (en) * | 2021-03-10 | 2021-06-22 | 中国水利水电科学研究院 | Test device for generating, transmitting and monitoring temperature-controlled water vapor in soil body gradual humidification test |
| CN115309209A (en) * | 2022-09-30 | 2022-11-08 | 深圳市安亿达制冷设备有限公司 | High-precision temperature control system and oil type constant temperature unit |
-
2017
- 2017-11-16 CN CN201721532413.XU patent/CN207503077U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110470562A (en) * | 2019-08-19 | 2019-11-19 | 天津同阳科技发展有限公司 | A kind of humidity conditioner, air quality monitor and method |
| CN110470562B (en) * | 2019-08-19 | 2020-09-15 | 天津同阳科技发展有限公司 | Humidity control device, air quality monitor and method |
| CN113009114A (en) * | 2021-03-10 | 2021-06-22 | 中国水利水电科学研究院 | Test device for generating, transmitting and monitoring temperature-controlled water vapor in soil body gradual humidification test |
| CN113009114B (en) * | 2021-03-10 | 2022-03-08 | 中国水利水电科学研究院 | Test device for generating, transmitting and monitoring temperature-controlled water vapor in soil body gradual humidification test |
| CN115309209A (en) * | 2022-09-30 | 2022-11-08 | 深圳市安亿达制冷设备有限公司 | High-precision temperature control system and oil type constant temperature unit |
| CN115309209B (en) * | 2022-09-30 | 2022-12-06 | 深圳市安亿达制冷设备有限公司 | High-precision temperature control system and oil type constant temperature unit |
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