CN111097556A - Environmental test chamber for detecting release amount of volatile pollutants - Google Patents
Environmental test chamber for detecting release amount of volatile pollutants Download PDFInfo
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- CN111097556A CN111097556A CN202010036068.0A CN202010036068A CN111097556A CN 111097556 A CN111097556 A CN 111097556A CN 202010036068 A CN202010036068 A CN 202010036068A CN 111097556 A CN111097556 A CN 111097556A
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- oven
- door
- control device
- test chamber
- cabin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention relates to the field of environmental test cabins, and discloses an environmental test cabin for detecting the release amount of volatile pollutants, which comprises a cabin body, an oven and an air purification temperature and humidity control device arranged outside the oven, wherein the cabin body is placed in the oven; the interior of the cabin body is divided into a test cabin and an equipment cabin by a vertically arranged partition plate, one side of the test cabin is provided with an air inlet, and the top of the test cabin is provided with an air outlet; the air inlet is connected with an air inlet pipeline, and the other end of the air inlet pipeline transversely penetrates through an air inlet pipe orifice arranged on the oven and is connected with an external air source pipeline arranged on one side of the air purification temperature and humidity control device. The method is used for detecting the release amount of volatile pollutants, is simple and convenient to operate, can utilize the oven as a heating device, and is beneficial to saving the cost and improving the utilization rate of equipment.
Description
Technical Field
The invention relates to the field of environmental test cabins, in particular to an environmental test cabin for detecting the release amount of volatile pollutants.
Background
The environmental test chamber is a test device used for simulating specific environmental conditions in a certain space so as to carry out corresponding inspection work, the uniformity of internal gas, the accuracy of environmental parameters and the tightness of the chamber body are the keys for controlling the environmental conditions of a local space, and particularly, when the release process of volatile pollutants contained in materials or products is investigated, the realization of accurate control of the environmental parameters by the environmental test chamber is an important guarantee for scientifically evaluating the damage degree of the volatile pollutants.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an environmental test chamber for detecting the release amount of volatile pollutants.
In order to solve the technical problems, the invention provides the following technical scheme:
an environmental test chamber for detecting the release amount of volatile pollutants comprises a chamber body, an oven and an air purification, temperature control and humidity control device which is arranged outside the oven and can realize the functions of purification, temperature control and humidity control, wherein the chamber body is arranged in the oven;
the interior of the cabin body is divided into a test cabin and an equipment cabin by a vertically arranged partition plate, the side part of the test cabin is provided with an air inlet, and the top part of the test cabin is provided with an air outlet; the other end of the air inlet pipeline transversely penetrates through an air inlet pipe orifice arranged on the drying oven and is connected with an external air source pipeline arranged on the side part of the air purification temperature and humidity control device; the exhaust port is connected with an exhaust pipeline, and the other end of the exhaust pipeline penetrates through an exhaust pipe opening formed in the corresponding position of the top of the oven and extends to the outside of the oven;
the test chamber is provided with a single-side door, the single-side door is provided with at least one sampling tube protruding towards the oven door, the sampling tube is hollow, the sampling tube is movably connected with a silicone tube or a PTEF tube, and the other end of the silicone tube or the PTEF tube penetrates through a sampling tube jack arranged on the oven door to extend to the outer side of the oven and is connected with a sampling device;
cable holes are formed in the top of the test chamber and the corresponding positions of the top of the oven, sensors are installed in the test chamber and comprise a temperature and humidity sensor and an air speed sensor, and the sensors are connected with a power supply through the cable holes;
the equipment cabin is provided with a control device and a wireless signal transmission device, the signal output end of the control device is respectively connected with the signal input ends of the air purification temperature and humidity control device, the sensor, the oven and the wireless signal transmission device, the signal output ends of the sensor and the wireless signal transmission device are connected with the signal input end of the control device, and the wireless signal transmission device is connected with the terminal.
As the limited, the sampling pipe jack is opened on the sampling door, the sampling door is arranged on the oven door, one side of the sampling door is rotationally connected with the oven door, and the rest three sides are separated from the oven door.
As a second limitation, a stirring fan is further installed inside the test chamber, a signal input end of the stirring fan is connected with a signal output end of the control device, and the stirring fan is connected with a power supply through a cable hole.
As a third limitation, an illumination facility is further installed inside the test chamber, a signal input end of the illumination facility is connected with a signal output end of the control device, and the illumination facility is connected with a power supply through a cable hole.
As a fourth limitation, the lighting means is an ultraviolet lamp or a fluorescent lamp.
As a fifth limitation, the air inlet pipeline and the exhaust pipeline are both provided with flow regulating devices, and signal input ends of the flow regulating devices are connected with a signal output end of the control device.
As a sixth limitation, the sampling tube is sealed by a stainless steel sealing cap, PTFE, or silicone.
As a seventh limitation, the joint of the test chamber and the single-side door, the joint of the air inlet and the air inlet pipeline, the joint of the air outlet and the exhaust pipeline, the joint of the sampling door and the oven door and the cable hole are all sealed by PTFE or silica gel.
As an eighth limitation, the hull is a stainless steel hull.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the invention can accurately control the internal temperature, humidity, air flow and air speed environmental conditions in the test chamber body, and can conveniently collect the volatile pollutant air sample;
(2) the interior of the cabin body is made of stainless steel, the sealing position is sealed by adopting PEFT or silica gel, and the stainless steel, the PEFT or the silica gel are low-absorption and low-release materials, so that the influence of the inner wall of the cabin body and other components on the test due to pollutant adsorption is reduced;
(3) the air inlet, the air outlet and the stirring fan are respectively positioned on different side parts of the cabin body, and air flow generated by the stirring fan is blown laterally, so that air in the cabin is better mixed, and the ventilation ratio is more stable;
(4) the invention has simple structure and simple and convenient operation, can accurately control the internal temperature of the cabin body by using the oven as an external heating device, and is beneficial to saving the cost and improving the utilization rate of equipment.
The invention is suitable for the field of environmental test cabins and is used for detecting the release amount of volatile pollutants.
Drawings
FIG. 1 is a schematic diagram of the general structure of an embodiment of the present invention;
fig. 2 is a schematic structural view of the cabin 1 according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of oven 12 according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an air purification temperature and humidity control device 16 according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of a circuit of an embodiment of the invention.
In the figure: 1. a cabin body; 2. a test chamber; 3. an equipment compartment; 4. an air inlet; 5. an air intake duct; 6. an exhaust port; 7. an exhaust duct; 8. a single-sided door; 9. a cable hole; 10. a stirring fan; 11. a sensor; 12. an oven; 13. an air inlet pipe orifice; 14. an exhaust pipe orifice; 15. a sampling pipe jack; 16. an air purification temperature and humidity control device; 17. an external gas source conduit; 18. a sampling tube; 19. a sampling gate.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment an environmental test chamber for detecting release amount of volatile pollutants
As shown in fig. 1 to 4, the present embodiment includes a cabin 1, an oven 12, and an air purification temperature and humidity control device 16 disposed outside the oven 12, wherein the cabin 1 is disposed inside the oven 12.
The cabin body 1 is made of stainless steel, the interior of the cabin body is divided into a test cabin 2 and an equipment cabin 3 by a vertically arranged partition plate, the side part of the test cabin 2 is provided with an air inlet 4, and the top part of the test cabin 2 is provided with an air outlet 6; the air inlet 4 is in threaded connection with an air inlet pipeline 5, and the other end of the air inlet pipeline 5 transversely penetrates through an air inlet pipe orifice 13 arranged on the oven 12 and is connected with an external air source pipeline 17 arranged on the side part of the air purification temperature and humidity control device 16; the exhaust port 6 is in threaded connection with an exhaust pipeline 7, the other end of the exhaust pipeline 7 penetrates through an exhaust pipe opening 14 formed in the corresponding position of the top of the oven 12 and extends to the outside of the oven 12, and flow regulation and control devices are arranged on the air inlet pipeline 5 and the exhaust pipeline 7 and used for controlling the air flow entering the test chamber 2.
In this embodiment, a sampling door 19 is disposed on a door of the oven 12, one side of the sampling door 19 is rotatably connected to the door of the oven 12, the remaining three sides are separated from the door of the oven 12, and four sampling tube insertion holes 15 are disposed on the sampling door 19. The single-side door 8 has been seted up on experimental cabin 2, and the middle part of single-side door 8 is equipped with four outstanding sampling pipes 18 of the 12 chamber door directions of oven of edge of the same quantity, 18 inside hollows of sampling pipe, and sampling pipe 18 is outstanding to be equipped with the helicitic texture outward to the outer part of single-side door 8 to threaded connection has a silicone tube, and the other end of silicone tube passes sampling pipe jack 15 on sampling door 19 and extends to oven 12's the outside and be connected with sampling device.
Through the sampling door that sets up on the 12 chamber doors of oven, when gathering volatile pollutants air sample, can need not open the 12 chamber doors of oven, only need open the sampling door 19 on the 12 chamber doors of oven, pass sampling tube jack 15 on the sampling door 19 with the silicone tube and be connected with sampling tube 18, just can realize gathering the sample, easy operation is convenient. Wherein, sampling tube 18 is sealed by a stainless steel sealing cap with threads inside, and can also be sealed by PTFE or silica gel.
In this embodiment, the top of test chamber 2 and the relevant position at oven 12 top all are equipped with cable hole 9, and test chamber 2 internally mounted has the sensor 11 that adopts magnetic force to adsorb, and sensor 11 includes temperature and humidity sensor and air velocity transducer, can detect temperature, humidity, the wind speed in test chamber 2. The interior of the test chamber 2 is also provided with a stirring fan 10 adopting magnetic adsorption and an illumination facility, wherein the illumination facility can be an ultraviolet lamp or a fluorescent lamp. Wherein the sensor 11, the stirring fan 10 and the illumination facility are all connected with a power supply through the cable hole 9.
When actually examining, because examine the release amount of different volatile pollutants, there is different requirements to the volume of experimental cabin 2, this embodiment can also change cabin body 1 to different volatile pollutants, because sensor 11, stirring fan 10, the illumination facility all connects the power through cable hole 9, consequently when changing cabin body 1, only need in cabin body 1 with sensor 11, stirring fan 10, the cable of illumination facility is taken out through cable hole 9, then change new cabin body 1, again with sensor 11, stirring fan 10, the cable of illumination facility is through cable hole 9 connection power, just can realize the change of cabin body 1.
In this embodiment, the air purification temperature and humidity control device 16 can realize air purification, temperature control and humidity control functions, and is of a conventional structure, such as a product of environmental protection technologies and technologies ltd (No. 2016103133748) of Shandong Hui Jing Ju. The equipment compartment 3 is equipped with a control device and a wireless signal transmission device. The signal output end of the control device is connected to the signal input ends of the air purification temperature and humidity control device 16, the sensor 11, the stirring fan 10, the illumination facility, the oven 12, the flow rate control device and the wireless signal transmission device, the signal output ends of the sensor 11 and the wireless signal transmission device are connected to the signal input end of the control device, and the wireless signal transmission device is connected to the terminal, as shown in fig. 5.
Wherein, control module can receive temperature, humidity and the wind speed information of test chamber 2 that sensor 11 detected to transmit each information in test chamber 2 for the terminal through wireless signal transmission module, and control module can acquire the temperature, humidity and the wind speed information that the terminal that receive on the wireless signal transmission module set for, set for the temperature, humidity and the wind speed in test chamber 2.
In this embodiment, the air inlet 4, the air outlet 6 and the stirring fan 10 are respectively located at different sides of the cabin body, and the air flow generated by the stirring fan blows laterally to better mix the air in the cabin body 1, so that the ventilation ratio is more stable. Moreover, the joint of the test chamber 2 and the single-side door 8, the joint of the air inlet 4 and the air inlet pipeline 5, the joint of the air outlet 6 and the air outlet pipeline 7, the joint of the sampling door 19 and the oven door of the oven 12 and the cable hole 9 are all sealed by PTFE or silica gel.
The principle of the embodiment is as follows: cleaning the inner surface of the test chamber 2, the air inlet pipeline 5 and the air outlet pipeline 7 according to test requirements before detection, and checking the tightness of the chamber body 1; during detection, the terminal is used for setting temperature, humidity, sample surface wind speed and ventilation rate required by the test through the control device, then the air purification temperature and humidity control device 16 is started to preset conditions, then the stirring fan 10 is started, and the temperature, humidity and air flow speed in the test chamber 2 and the background concentration environmental parameters of the volatile pollutant gas to be detected are checked.
Opening the door of the oven 12 and the single-side door 8 of the test chamber 2, putting a volatile pollutant sample prepared in advance according to a preset load ratio, and then closing the single-side door of the test chamber 2 and the door of the oven 12; after the preset release time of the test is reached, the sampling door 19 on the box door of the oven 12 is opened, the stainless steel sealing cap on the sampling tube 18 is unscrewed, the sampling tube 18 is in threaded connection with the silicone tube, the other end of the silicone tube penetrates through the sampling tube jack 15 on the sampling door 19 to be connected with the sampling device, the sampling door 19 on the box door of the oven 12 is closed, and then the sampling device is started to collect the air sample according to the preset sampling speed.
After sampling, closing the sampling device, disconnecting the connection of the silicone tube and screwing a stainless steel sealing cap on the sampling tube; after the experiment is finished, the residual volatile pollutant sample is taken out, and the inner surface of the test chamber 2, the air inlet pipeline 5 and the air outlet pipeline 7 are cleaned.
Claims (9)
1. An environmental test chamber for detecting the release amount of volatile pollutants comprises a chamber body (1) and is characterized by further comprising an oven (12) and an air purification, temperature control and humidity control device (16) which is arranged outside the oven (12) and can realize the functions of purification, temperature control and humidity control, wherein the chamber body (1) is placed in the oven (12);
the interior of the cabin body (1) is divided into a test cabin (2) and an equipment cabin (3) by a vertically arranged partition plate, the side part of the test cabin (2) is provided with an air inlet (4), and the top part of the test cabin is provided with an air outlet (6); the air inlet (4) is connected with an air inlet pipeline (5), and the other end of the air inlet pipeline (5) transversely penetrates through an air inlet pipe orifice (13) arranged on the drying oven (12) and is connected with an external air source pipeline (17) arranged on the side part of the air purification temperature and humidity control device (16); the exhaust port (6) is connected with an exhaust pipeline (7), and the other end of the exhaust pipeline (7) penetrates through an exhaust pipe orifice (14) formed in the corresponding position of the top of the oven (12) and extends to the outside of the oven (12);
the testing chamber (2) is provided with a single-side door (8), the single-side door (8) is provided with at least one sampling tube (18) protruding towards the direction of the oven door of the oven (12), the sampling tube (18) is hollow, the sampling tube (18) is movably connected with a silicone tube or a PTEF tube, and the other end of the silicone tube or the PTEF tube penetrates through a sampling tube jack (15) arranged on the oven door of the oven (12) and extends to the outer side of the oven (12) and is connected with a sampling device;
cable holes (9) are formed in the corresponding positions of the top of the test cabin (2) and the top of the oven (12), a sensor (11) is installed inside the test cabin (2), the sensor (11) comprises a temperature and humidity sensor and an air speed sensor, and the sensor (11) is connected with a power supply through the cable holes (9);
the equipment cabin (3) is provided with a control device and a wireless signal transmission device, the signal output end of the control device is respectively connected with the signal input ends of the air purification temperature and humidity control device (16), the sensor (11), the oven (12) and the wireless signal transmission device, the signal output ends of the sensor (11) and the wireless signal transmission device are connected with the signal input end of the control device, and the wireless signal transmission device is connected with a terminal.
2. The environmental test chamber for detecting the release amount of the volatile pollutants according to claim 1, wherein the sampling tube insertion hole (15) is formed in a sampling door (19), the sampling door (19) is arranged on a door of the oven (12), one side of the sampling door (19) is rotatably connected with the door of the oven (12), and the other three sides of the sampling door are separated from the door of the oven (12).
3. An environmental test chamber for detecting the release amount of volatile pollutants according to claim 1, characterized in that a stirring fan (10) is further installed inside the test chamber (2), the signal input end of the stirring fan (10) is connected with the signal output end of the control device, and the stirring fan (10) is connected with a power supply through a cable hole (9).
4. An environmental test chamber for detecting the release amount of volatile pollutants according to claim 3, characterized in that a lighting facility is further installed inside the test chamber (2), the signal input end of the lighting facility is connected with the signal output end of the control device, and the lighting facility is connected with a power supply through a cable hole (9).
5. An environmental test chamber for detecting the release of volatile pollutants as in claim 4, wherein said lighting means is an ultraviolet lamp or a fluorescent lamp.
6. The environmental test chamber for detecting the release amount of the volatile pollutants according to claim 1, wherein a flow control device is arranged on each of the air inlet pipeline (5) and the air outlet pipeline (7), and a signal input end of the flow control device is connected with a signal output end of the control device.
7. An environmental test chamber for the detection of the amount of released volatile pollutants as claimed in claim 1, characterized in that the sampling tube (18) is sealed by a stainless steel sealing cap, PTFE or silicone.
8. The environmental test chamber for detecting the release amount of the volatile pollutants according to claim 1, wherein the joint of the test chamber (2) and the single-side door (8), the joint of the air inlet (4) and the air inlet pipeline (5), the joint of the air outlet (6) and the air outlet pipeline (7), the joint of the sampling door (19) and the door of the oven (12), and the cable hole (9) are sealed by PTFE or silica gel.
9. The environmental test chamber for detecting the release amount of the volatile pollutants according to claim 1, wherein the chamber body (1) is a stainless steel chamber body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010036068.0A CN111097556A (en) | 2020-01-14 | 2020-01-14 | Environmental test chamber for detecting release amount of volatile pollutants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010036068.0A CN111097556A (en) | 2020-01-14 | 2020-01-14 | Environmental test chamber for detecting release amount of volatile pollutants |
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| Publication Number | Publication Date |
|---|---|
| CN111097556A true CN111097556A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010036068.0A Pending CN111097556A (en) | 2020-01-14 | 2020-01-14 | Environmental test chamber for detecting release amount of volatile pollutants |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735805A (en) * | 2023-07-12 | 2023-09-12 | 芜湖大正机动车检测服务有限公司 | Air quality detection device in car |
| CN117761262A (en) * | 2024-02-22 | 2024-03-26 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
-
2020
- 2020-01-14 CN CN202010036068.0A patent/CN111097556A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735805A (en) * | 2023-07-12 | 2023-09-12 | 芜湖大正机动车检测服务有限公司 | Air quality detection device in car |
| CN116735805B (en) * | 2023-07-12 | 2024-01-02 | 江苏富泰净化科技股份有限公司 | Air quality detection device in car |
| CN117761262A (en) * | 2024-02-22 | 2024-03-26 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
| CN117761262B (en) * | 2024-02-22 | 2024-04-30 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
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