CN2694255Y - Formaldehyde collection instrument - Google Patents
Formaldehyde collection instrument Download PDFInfo
- Publication number
- CN2694255Y CN2694255Y CN 200420022615 CN200420022615U CN2694255Y CN 2694255 Y CN2694255 Y CN 2694255Y CN 200420022615 CN200420022615 CN 200420022615 CN 200420022615 U CN200420022615 U CN 200420022615U CN 2694255 Y CN2694255 Y CN 2694255Y
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- CN
- China
- Prior art keywords
- formaldehyde
- cabin
- sample
- constant temperature
- knocker
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a formaldehyde collection instrument, which is used for collecting the formaldehyde released by the wooden articles of decoration and furnishing. The formaldehyde collection instrument comprises three parts. Wherein, the first part is a constant temperature cabin for placing the samples of wooden articles; the second part is an electric control component and a display panel; the third part is a localization rack of the collecting bottle of the formaldehyde. The constant temperature cabin is provided with two divided sample cabins. The sample cabins and the collecting bottle are connected through a pipeline. The pipeline is accessed into a nitrogen steel cylinder, and the sample cabins are placed in a constant temperature pool. The airtight door of the sample cabin adopts the mode that the airtight door is pressed tightly by a circular rotating disk. The utility model has the advantages that the formaldehyde collection instrument can collect the formaldehyde under the uniform condition of constant high temperature, constant air pressure and constant gas flow in certain short time, in this way, the detection is more scientific and more reliable. The structure of the air-tight door of the sample cabin can guarantee that an airtight rubber sheet base cannot rotate when a door catch rotates, so the air-tight rubber sheet base can not be damaged.
Description
Technical field
The utility model relate to decorate and furniture with the release and the collection instrument of contained formaldehyde composition in the woodwork.
Background technology
At present, in detecting woodwork during content of formaldehyde, normally detected material was placed in the climate box of 23 ± 0.5 ℃ of temperature, relative humidity 45% ± 3% 7-28 days, extract gas in the case during this time in required time, and the content of formaldehyde in the test gas, test duration is very long, can not adapt to the needs of fast detecting.
Summary of the invention
The purpose of this utility model is to set up the new instrument that a kind ofly meets novel standard-required, can make formaldehyde snap-out release in the woodwork and collect.
This new instrument is made up of constant temperature cabin, electric controling part and display panel, formaldehyde receiving flask locating rack three parts of placing the woodwork sample, and described three parts are joined together by hardware.
Formaldehyde collect instrument establish two groups independently discharge, collection system, promptly establish two sample cabins in the constant temperature cabin, have pipeline to be connected between sample cabin and the above-mentioned formaldehyde receiving flask, access nitrogen steel cylinder discharges source of the gas with nitrogen as formaldehyde in the described pipeline.In every sample cabin the porous shelf of placing sample is set.The sample cabin places the constant temperature pond, and electrical heating is adopted in the constant temperature pond, is consistent for making water temperature, establishes the water stirrer in the pond.Sample cabin sidepiece is provided with a water level astrodome, to observe water level in water pool; The astrodome upper end can intake, and the lower end can discharge water; Upper end, constant temperature pond has a circular hole, can insert standard thermometer, and whether check temperature control instrument displayed value has deviation.
That electrical control panel is concentrated is free, temperature value, gas flow, sample cabin gaseous tension, program are indicated display device and power switch.Install electrical equipment and pneumatic controlling parts in the control panel electric box concentratedly.
Formaldehyde receiving flask locating rack is provided with some to the receiving flask of absorption formaldehyde gas and the fixed frame of receiving flask, and fixed frame can be stainless steel or pmma material.
Feature of the present utility model also is the structure of sample cabin hermatic door, described hermatic door comprises and is fixed on the constant temperature hinge seat on the wall out of my cabin, the flap that is connected with pin with hinge seat, insert the handle cover in the flap one end circular hole, pack in the handle cover and by the fastening handle of screw and the axle of knocker, the axle kink of knocker is outside the axle of disc caulking gum panel seat, and the rubber panel seat is pushed down sealed rubber plate and gate seat.The hermatic door of this spline structure is when handle rotates, because the fastening effect of handle trip bolt, knocker and then rotates together, makes the inboard of 4 circular arc limit tongue precession gate seats of knocker, and sealed rubber plate tightly suppresses the sample hatch; Again since the axle kink of knocker on the axle of caulking gum panel seat, free to rotate, so when knocker rotated the compression seal rubber slab, the caulking gum panel seat can not followed together and rotate, and can not cut off by the stainless steel round edge on doorway in the sample cabin yet.
The utility model has the advantages that after the employing can be in certain short period, discharge under the unified condition of constant high temperature, permanent gaseous tension, permanent gas flow and collect formaldehyde, makes to detect to have more science and credibility; The sample hatch door has adopted the circular rolling disc of unique design to compress the mode of hermatic door, and when knocker rotated, the caulking gum panel seat did not rotate and can not be cut damage.
Description of drawings
1. gas portals; 2. flowmeter; 3. timer; 4. program pilot lamp;
5. hermatic door; 6. sample shelf; 7. sample cabin; 8. water level view window;
9. adjusting pin; 10. tensimeter; 11. reset button; 12. power switch;
13. X button; 14. release the button; 15. temperature control instrument; Collect 16. place
The circular hole of bottle; 17. formaldehyde receiving flask; 18. variable valve; 19. water stirrer;
20. sample; 21. solenoid valve; 22. constant temperature pond; 23. electric heater; 24. pin;
25. hinge seat; 26. flap; 27. handle cover; 28. handle trip bolt;
29. caulking gum panel seat trip bolt; 30. caulking gum panel seat; 31. gate seat is tight
Gu screw; 32. gate seat; 33. sealed rubber plate; 34. knocker;
35. handle.
Embodiment
Formaldehyde is collected the instrument external member and is made of stainless steel material, and the centre is electrical equipment control device and display panel, and the right side is constant temperature sample cabin, and the left side is a formaldehyde receiving flask locating rack.Instrument volume 1100 * 650 * 500mm, an instrument is established two groups of independently formaldehyde releases, collection system, can use wherein one group during collection separately, or two groups is used simultaneously.
The constant temperature pond is heated by three stainless steel electric heaters, makes sample cabin temperature be controlled at 60 ± 0.5 ℃, relative humidity≤3%, cabin internal gas pressure 1-1.2kPa, gas flow 60L/h.Under the above-mentioned condition, formaldehyde release, acquisition time only need 4 hours in the woodwork.
Around the constant temperature pond, the insulation material of top, basal surface all adopts pouring method, high insulating effect.
The receiving flask locating rack in instrument left side is that pmma material is made.
Formaldehyde discharges and collects flow process as shown in Figure 2.For guaranteeing relative humidity≤3% in the air, air should adopt nitrogen (or freeze drying air) for collecting source of the gas.Solenoid valve when instrument is started working (21) is opened automatically, dry air is sent into gas meter (2), regulate this flowmeter, making its scale indicated value is 60L/h, and air flows in the constant temperature sample cabin (7) then, under the High Temperature High Pressure situation, sample directly contacts in air and the cabin, makes the formaldehyde snap-out release in the sample body, and the gas that contains formaldehyde is through gas control valve (18), send in the receiving flask (17) that fills distilled water, absorb airborne formaldehyde by distilled water.Because pipeline is ganged up in the gas circuit, therefore the air mass flow of output also is 60L/h, in order to guarantee that the gaseous tension in the sample cabin can remain in the normal range, between the outlet in sample cabin and gas receiving flask (17), a gaseous tension variable valve (18) has been installed, the cabin internal pressure is remained in 1～1.2kPa scope.
The technology of the PLC programmable device control instrument course of work that this collection instrument adopts, and the interior installation of control panel electric box is electric and technology pneumatic control component is a prior art.
Below the mechanism of hermatic door is described.
From Fig. 3,4,5 as can be seen, when hermatic door is closed, the four edges tongue of knocker (34) is embedded in the gate seat (32), sealed rubber plate (33) is near sample cabin circle wall mouth, when turning handle (35), because the fastening effect of handle trip bolt (28), knocker (34) and then rotates together, make knocker (34) four circular arc limit tongue precessions the inboard of gate seat (32)
Sealed rubber plate (33) has tightly been pushed down the sample hatch, has guaranteed that the air in the sample cabin does not leak.Because the circular shaft of caulking gum panel seat (30) is to be inserted in the axle of knocker (34) actively, can freely rotate, when knocker (34) rotation compresses sealed rubber plate (33), caulking gum panel seat (30) can not followed together and rotate, and therefore can not cut off by the stainless steel round edge on doorway in the sample cabin yet.
Claims (6)
1. formaldehyde is collected instrument, it is characterized in that being made up of constant temperature cabin, electric controling part and display panel, formaldehyde receiving flask locating rack three parts of placing the woodwork sample, and described three parts are joined together by hardware.
2. formaldehyde as claimed in claim 1 is collected instrument, it is characterized in that being provided with in the constant temperature cabin sample cabin of two separations, has pipeline to be connected between sample cabin and the described formaldehyde receiving flask.
3. formaldehyde as claimed in claim 2 is collected instrument, it is characterized in that inserting in described pipeline the nitrogen steel cylinder.
4. formaldehyde as claimed in claim 2 is collected instrument, it is characterized in that placing the constant temperature pond in described sample cabin.
5. formaldehyde as claimed in claim 1 or 2 is collected instrument, it is characterized in that described formaldehyde receiving flask is 8 pairs totally 16.
6. formaldehyde as claimed in claim 2 is collected instrument, the hermatic door that it is characterized in that described sample cabin adopts circular rolling disc to compress the hermatic door structure, comprise and be fixed on the constant temperature hinge seat on the wall out of my cabin, the flap that is connected with pin with hinge seat, insert the handle cover in the flap one end circular hole, pack in the handle cover and by the fastening handle of screw and the axle of knocker, the axle kink of knocker is outside the axle of disc caulking gum panel seat, the rubber panel seat is pushed down sealed rubber plate and knocker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022615 CN2694255Y (en) | 2004-05-11 | 2004-05-11 | Formaldehyde collection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022615 CN2694255Y (en) | 2004-05-11 | 2004-05-11 | Formaldehyde collection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694255Y true CN2694255Y (en) | 2005-04-20 |
Family
ID=34770454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022615 Expired - Fee Related CN2694255Y (en) | 2004-05-11 | 2004-05-11 | Formaldehyde collection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694255Y (en) |
-
2004
- 2004-05-11 CN CN 200420022615 patent/CN2694255Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |