CN208076484U - A kind of environmental control system of burst size of methanal chamber - Google Patents
A kind of environmental control system of burst size of methanal chamber Download PDFInfo
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- CN208076484U CN208076484U CN201820665051.XU CN201820665051U CN208076484U CN 208076484 U CN208076484 U CN 208076484U CN 201820665051 U CN201820665051 U CN 201820665051U CN 208076484 U CN208076484 U CN 208076484U
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- chamber
- methanal
- burst size
- air
- control valve
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Abstract
The utility model provides a kind of environmental control system of burst size of methanal chamber, including airflow pipe, primary filter, air pump, flowmeter, middle effect polishing filter, high-efficient purification filter, proportional control valve, dehumidifier, humidifier and chamber operating room.The utility model provides a kind of environmental control system of burst size of methanal chamber, and the ratio of dry gas and flux of moisture is automatically controlled by proportional control valve, and external world's gas supply is continuously passed through working bin, realizes the purpose of humid control；It is compared with existing dew point water tower control methods, in being increased on the basis of replacing air and function improves control accuracy so as to shorten the wetting balance time.The humid control precision of burst size of methanal chamber can be improved in the utility model, shortens the wetting balance time, reduces the concentration of chamber background contamination, improves burst size of methanal chamber utilization rate, reduces energy consumption.
Description
Technical field
The utility model is related to formaldehyde examination technical fields, in particular, the utility model is related to a kind of burst size of methanal
The environmental control system of chamber.
Background technology
Furniture, plank and the other products with human contact can volatilize VOC (volatile organic matter), formaldehyde etc. to people
The harmful substance of body places intensive, space-closed interior, car, the concentration higher after accumulation, to people especially for product
Body health hazard bigger.Burst size of methanal chamber be for test, assess furniture harmful substance burst size in the products such as building materials
Size.
Burst size of methanal chamber is with the requirement of following technology：
1, the background concn value of pollutant must be very low in case, with ensure not affecting in test process sample (or
It is small to the interference of sample to can be ignored), ensure that test result is accurate and reliable.
2, during temperature, control control, cannot occur liquid (or solid-state) water in storehouse, some pollutants are soluble easily in water
(such as：Formaldehyde), the appearance of liquid water can make material concentration soluble easily in water in air in storehouse relatively low, be lost so as to cause experiment
It loses.
3, control requires：23 ± 0.5 DEG C of temperature (or 25 DEG C), 45 ± 3%RH of humidity (or 50%RH), ventilation rate 0.2~
2.0 times/hour, 0.1~0.3 meter per second of center wind speed, air-tightness requirement leakage rate under the overvoltage of 1kPa are less than thousand points of volume
One of.
4, material requirement：Working bin material must will not discharge the clean material such as stainless steel, glass, copper of pollutant,
Sealing material must be flexibility (elasticity) material of the cleaning such as polytetrafluoroethylene (PTFE).
5, insulation requirements：Working bin should be whole adiabatic good, and the variation of environment cannot cause the larger of humiture in case
Fluctuation.Not will produce cold bridge phenomenon when environment temperature is too low makes working bin generate condensed water.
6, clean air source：It must be cleaned very much for the air that equipment provides, filter plant should have good purification function,
Make very clean (TVOC≤20ug/m3) of feeding working bin air.
In the prior art, humidity is controlled often through ventilation, the air that humidity qualification is imported into case is replaced.It is existing
The way for preparing qualified humidity air is that air is allowed to flow through a water tower, the controlled temperature of water and water is sprayed in cycle in water tower
Leaching, comes into full contact with the air flowed through and exchanges, and generates the air of humidity qualification.The shortcomings that this method is that equipment needs to configure one
The specific heat of a water tower, water is big, and the big reaction of system inertia is slow, and the energy of consumption is more, and the wetting balance time is long, and control accuracy is low.
Since the facility structures such as the water tower used in humidity control process are more complicated, cleaning is relatively difficult, this is to background
Pollutant concentration requires high chamber very unfavorable, it is contaminated after cleaning it is also relatively difficult, working efficiency is low.Water tower pair
The purification efficiency of gas supply is also very unfavorable, and the air of high humility can reduce removal efficiency of the sorbing material to pollutant, complexity knot
Structure is also easy entrapment of contaminants, once pollutant enters, reset procedure is also more complicated and very long.
In conclusion existing product there are the problem of be：1, humid control response speed is slow, and efficiency is low；2, humidity is flat
Weighing, the time is long, and the time interval for being adjusted to next humidity value from a humidity value is very long；3, control sensitivity is low, high energy consumption；
4, complicated, it is unfavorable for reducing the background concentration of pollutant in working bin.
Utility model content
The utility model provides a kind of environmental control system of burst size of methanal chamber, solves to carry in above-mentioned background technology
The problem of going out.
Technical solution is used by utility model solves its technical problem：A kind of ring of burst size of methanal chamber is provided
Border control system, which is characterized in that including airflow pipe, primary filter, air pump, flowmeter, middle effect polishing filter,
High-efficient purification filter, proportional control valve, dehumidifier, humidifier and chamber operating room, the primary filter, air pump,
Flowmeter, middle effect polishing filter, high-efficient purification filter, proportional control valve pass sequentially through airflow pipe connection, described
One end of dehumidifier and humidifier is connected to proportional control valve, and the other end is connected to chamber operating room, and the air pump is used for
The air in preset pressure threshold value is conveyed, the flowmeter enters the indoor air capacity of chamber work, institute for measuring
State ratio of the proportional control valve for controlling dry air and humid air.
Preferably, the humidity sensor for detecting air humidity is equipped in the chamber operating room.
Preferably, the humidity sensor is connect with proportional control valve, and work indoor humidity value of chamber is fed back
To proportional control valve.
Preferably, the dehumidifier and humidifier are connected to chamber operating room simultaneously.
Preferably, the humidifier includes heating device and water temperature control instrument.
The utility model provides a kind of environmental control system of burst size of methanal chamber, automatic by proportional control valve
External world's gas supply is continuously passed through working bin, realizes the purpose of humid control by the ratio for controlling dry gas and flux of moisture；With
Existing dew point water tower control methods are compared, in being increased on the basis of replacing air and function, so as to shorten the wetting balance time,
Improve control accuracy.The humid control precision of burst size of methanal chamber can be improved in the utility model, when shortening wetting balance
Between, the concentration of chamber background contamination is reduced, burst size of methanal chamber utilization rate is improved, reduces energy consumption.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural representation of the environmental control system preferred embodiment of the burst size of methanal chamber of the utility model
Figure.
[reference numeral in figure]：
10. primary filter, 20. air pumps, 30. flowmeters imitate polishing filter in 40., 50. high-efficient purification filters,
60. proportional control valve, 70. dehumidifiers, 80. humidifiers, 90. chamber operating rooms.
Specific implementation mode
To keep the content of the utility model more clear and easy to understand, below in conjunction with Figure of description, in the utility model
Appearance is described further.Certain the utility model is not limited to the specific embodiment, known to those skilled in the art
It is general replacement be also covered by it is within the protection scope of the present utility model.Secondly, the utility model has been carried out in detail using schematic diagram
Statement, when the example of the utility model is described in detail, for convenience of description, schematic diagram is not partially enlarged in proportion to the general scale, and is not answered
In this, as the restriction to the utility model.
Above and other technical characteristic and advantageous effect, will in conjunction with the embodiments and attached drawing 1 releases the formaldehyde of the utility model
High-volume the environmental control system of chamber is described in detail.Fig. 1 is the environment of the burst size of methanal chamber of the utility model
The structural schematic diagram of control system preferred embodiment.
As shown in Figure 1, the utility model provides a kind of environmental control system of burst size of methanal chamber, including air is defeated
Send pipeline, primary filter 10, air pump 20, flowmeter 30, middle effect polishing filter 40, high-efficient purification filter 50, ratio control
Valve 60, dehumidifier 70, humidifier 80 and chamber operating room 90 processed.
Specifically, in the present embodiment, primary filter 10, air pump 20, flowmeter 30, middle effect polishing filter 40, efficiently
Polishing filter 50, proportional control valve 60 pass sequentially through one end of airflow pipe connection, dehumidifier 70 and humidifier 80
It is connected to proportional control valve 60, the other end is connected to chamber operating room 90, and air pump 20 is for conveying in preset pressure threshold value
Air, flowmeter 30 enter chamber and work indoor air capacity for measuring, proportional control valve 60 for control dry air with
And the ratio of humid air.
The operation principle of the utility model is：Air pump 20 drives gas to pass through flowmeter, into multi-stage filtration purifying device,
Purified air is by proportional control valve 60, according to the requirement of humidity in working bin in proportion by dehumidifying, humidifying unit, most
After be passed through working bin, complete entire humidity control process.
Meanwhile the humidity sensor for detecting air humidity is equipped in the chamber operating room 90 in the present embodiment, it is wet
Degree sensor is connect with proportional control valve 60, and the humidity value in chamber operating room 90 is timely feedbacked to proportional control valve
60。
Dehumidifier 70 and humidifier 80 in the utility model are connected to chamber operating room 90 simultaneously, and humidifier 70 wraps
Heating device and water temperature control instrument are included, water temperature control instrument automatically controls the temperature of water, ensures that the evaporation capacity of steam can
Meet the humidification requirement of equipment.Multi-stage filtration purifying device is used for ensureing that the air into working bin is clean, can meet low
The requirement of background concn value.Dehumidifier 70 is configured with mini-type refrigeration compressor group, and there is self-draining arrangement in bottom, is removed for discharging
The condensed water of wet generation.
In conclusion the utility model provides a kind of environmental control system of burst size of methanal chamber, pass through ratio
Control valve automatically controls the ratio of dry gas and flux of moisture, and external world's gas supply is continuously passed through working bin, realizes humidity control
The purpose of system；It is compared with existing dew point water tower control methods, in being increased on the basis of replacing air and function, so as to shorten wet
Equilibration time is spent, control accuracy is improved.
The humid control precision of burst size of methanal chamber can be improved in the utility model, shortens the wetting balance time, reduces
The concentration of chamber background contamination improves burst size of methanal chamber utilization rate, reduces energy consumption.
Although the utility model essentially describes above example, example is intended only as to be described, and this reality
It is not limited to this with novel.For example, each component that embodiment is shown in detail can be changed and be run, with the modification and application
Relevant difference is believed that including in the scope of protection of the utility model as defined in the appended claims.
Involved embodiment, is meant that specially feature, structure or the spy described in conjunction with the embodiment in this specification
Property is included at least one embodiment of the utility model.These terms come across in specification everywhere are not necessarily directed to
The same embodiment.In addition, when describing a particular feature, structure, or characteristic in conjunction with any embodiment, all think that it falls into this field
Those of ordinary skill combines in the range of these a particular feature, structure, or characteristics that other embodiment can be realized.
Claims (5)
1. a kind of environmental control system of burst size of methanal chamber, which is characterized in that including airflow pipe, primarily efficient filter
Device, air pump, flowmeter, middle effect polishing filter, high-efficient purification filter, proportional control valve, dehumidifier, humidifier and experiment
Case operating room, the primary filter, air pump, flowmeter, middle effect polishing filter, high-efficient purification filter, proportional control valve
Pass sequentially through airflow pipe connection, one end of the dehumidifier and humidifier is connected to proportional control valve, the other end and
Chamber operating room is connected to, and the air pump is used to convey the air in preset pressure threshold value, and the flowmeter enters for measuring
The indoor air capacity of the chamber work, the proportional control valve are used to control the ratio of dry air and humid air.
2. the environmental control system of burst size of methanal chamber as described in claim 1, which is characterized in that the chamber work
Make the indoor humidity sensor being equipped with for detecting air humidity.
3. the environmental control system of burst size of methanal chamber as claimed in claim 2, which is characterized in that the humidity sensor
Device is connect with proportional control valve, and the chamber indoor humidity value that works is fed back to proportional control valve.
4. the environmental control system of burst size of methanal chamber as described in claim 1, which is characterized in that the dehumidifier with
And humidifier is connected to chamber operating room simultaneously.
5. the environmental control system of burst size of methanal chamber as described in claim 1, which is characterized in that the humidifier packet
Include heating device and water temperature control instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665051.XU CN208076484U (en) | 2018-05-04 | 2018-05-04 | A kind of environmental control system of burst size of methanal chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665051.XU CN208076484U (en) | 2018-05-04 | 2018-05-04 | A kind of environmental control system of burst size of methanal chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076484U true CN208076484U (en) | 2018-11-09 |
Family
ID=64045505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820665051.XU Active CN208076484U (en) | 2018-05-04 | 2018-05-04 | A kind of environmental control system of burst size of methanal chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208076484U (en) |
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2018
- 2018-05-04 CN CN201820665051.XU patent/CN208076484U/en active Active
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