CN208399451U - Oxygen index (OI) tester combustion barrel with pre- heat function - Google Patents

Abstract

The utility model discloses a kind of oxygen index (OI) tester combustion barrel with pre- heat function, it applies in oxygen index (OI) tester field, solves the not accurate enough technical problem of the oxygen index (OI) of the material of existing test equipment test, its key points of the technical solution are that a kind of oxygen index (OI) tester combustion barrel with pre- heat function, it further include mounting base including control cabinet, mounting base is equipped with combustion barrel, mounting base is equipped with oxygen hose and nitrogen tube, is additionally provided with oxygen concentration detection probe and igniter in mounting base；Combustion barrel is equipped with for combustion barrel preheating heating unit, the heating unit to include the heater strip being arranged in combustion barrel circumferential wall, the fixation kit for fixing the heater strip；Having the technical effect that for having can simulate more true environment temperature, preferably test out the oxygen index (OI) of measured material, the oxygen index (OI) tested out more meets actual environment.

Description

Oxygen index (OI) tester combustion barrel with pre- heat function

Technical field

The utility model relates to oxygen index (OI) tester field, in particular to a kind of oxygen index (OI) tester with pre- heat function Combustion barrel.

Background technique

Currently, the Chinese patent that notification number in the market is CN202421157U discloses a kind of oxygen with pre- heat function Index tester combustion barrel, it includes glass combustion barrel, and igniter is arranged in the top of the glass combustion barrel, glass combustion barrel The metal mesh for fixing the specimen holder of test sample and for blocking density flaming droplet is arranged in inside, and glass combustion barrel passes through base Seat is fixed on control cabinet, and glass combustion barrel is also connected to source of oxygen and source nitrogen by flow control system, is set on control cabinet Set display and switch.The utility model can satisfy the testing requirement of various polymer material combustibilities；The tester The bore of igniter is smaller and wall thickness is thicker, can not only reduce the diameter of outlet flame, when avoiding lighting a fire at the top of test sample The side on side and corner angle are lighted, to improve test data accuracy；And the service life of igniter can be extended.

Although this oxygen index (OI) tester combustion barrel with pre- heat function can preferably carry out the test of oxygen index (OI)；But The test of oxygen index (OI) is all carried out at room temperature in the prior art, but real material then before, the temperature of ambient enviroment is all Be it is higher, the oxygen index (OI) of the material of existing test equipment test is not accurate enough.

Utility model content

The purpose of the utility model is to provide a kind of oxygen index (OI) tester combustion barrel with pre- heat function, its advantage is that energy More true environment temperature is enough simulated, the oxygen index (OI) of measured material is preferably tested out, the oxygen index (OI) tested out more meets Actual environment.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of with pre- heat function Oxygen index (OI) tester combustion barrel, including control cabinet further includes mounting base, and mounting base is equipped with combustion barrel, and mounting base is equipped with Oxygen hose and nitrogen tube are additionally provided with oxygen concentration detection probe and igniter in mounting base；Combustion barrel is equipped with for combustion barrel Preheating heating unit, the heating unit include the heater strip being arranged in combustion barrel circumferential wall, for fixing described add The fixation kit of heated filament.

Through the above technical solutions, the combustion barrel being arranged in mounting base, provides closed environment for test；Oxygen hose and Nitrogen tube can be passed through oxygen or nitrogen into combustion barrel, by adjusting the intake of oxygen or nitrogen, to change combustion barrel In oxygen concentration；Heater strip in combustion barrel circumferential wall is set, combustion barrel can be preheated, to simulate reality The environment temperature when material combustion of border, to reach more accurate test result；It, can be with for fixing the fixation kit of heater strip Preferably fixed heater strip, is evenly distributed in heater strip around combustion barrel, makes the more uniform temperature around combustion barrel.

The utility model is further arranged to: the fixation kit includes the fixed ring being set on combustion barrel, fixed ring It is equipped with mica sheet, mica sheet is equipped with the through-hole passed through for the heater strip.

Through the above technical solutions, fixation kit includes the mica sheet of fixed ring, fixed ring setting, mica sheet is equipped with logical Hole, heater strip can be threaded through on mica sheet by through-hole, and mica sheet is a kind of relatively common heat-resisting material；Fixed ring can To be conveniently set on combustion barrel, the fixed heater strip of mica sheet is reused, further heater strip is allowed to be evenly distributed on Around combustion barrel.

The utility model is further arranged to: the fixation kit includes the fixed column of combustion barrel setting, the fixed column It is equipped with the placing groove for placing heater strip.

Through the above technical solutions, the lateral wall of combustion barrel is equipped with fixed column, fixed column is equipped with for placing heating The placing groove of silk；Fixed column directly extends out from the lateral wall of combustion barrel, is not required to additional increase mounting structure, so that installation It is more simple；Heater strip uniformly rides upon in the placing groove of fixed column, the more uniform surrounding for being distributed in combustion tube, preferably Promote the temperature of combustion tube ambient enviroment.

The utility model is further arranged to: the mounting base edge is extended with the exntension tubs for wrapping up the combustion barrel, institute It states exntension tubs inner wall and is equipped with the sealing ring being bonded with the combustion barrel.

Through the above technical solutions, exntension tubs wrap combustion barrel, fix combustion barrel more stable；In exntension tubs Equipped with the sealing ring being bonded with combustion barrel, sealing ring to have obtained preferable sealing between exntension tubs and burning, avoids oxygen Leaking for gas or nitrogen, improves the accuracy of test result.

The utility model is further arranged to: the exntension tubs be equipped with inside bulge loop, the sealing ring be equipped with The groove of bulge loop clamping.

Through the above technical solutions, the groove on the bulge loop and sealing ring that are arranged on exntension tubs cooperates, can preferably by Sealing ring is fixed, and is avoided when removing combustion barrel, and sealing ring is also removed together.

The utility model is further arranged to: the filter for stopping sample combustion ashes is equipped in the mounting base, The mounting base is equipped with the flange for placing filter, and the filter is equipped with several filter hole.

Through the above technical solutions, more ashes can be generated in burning sample, the outlet of oxygen or nitrogen can be blocked Mouthful, and affect and be passed through gas into combustion barrel, filter can preferably stop ashes；The flange being arranged in mounting base can be with Place filter more stable.

The utility model is further arranged to: the filter is equipped with the clamping piece for contradicting with combustion barrel inner wall, The clamping piece is arc-shaped.

Through the above technical solutions, the arc clamping piece and combustion barrel on filter contradict, it, can under taking-up when combustion barrel It filter to be removed together, does not need individually to take out filter again, so that operation is more convenient.

The utility model is further arranged to: the clamping jaw for clamping sample is equipped in the mounting base.

Through the above technical solutions, the clamping jaw being arranged in mounting base can preferably clamp sample, it is placed in sample It in combustion barrel, is sufficiently contacted with the gas in combustion barrel, it is ensured that the accuracy of testing result.

The utility model is further arranged to: the combustion barrel is made of transparent glass.

Through the above technical solutions, combustion barrel is made of transparent glass, operator can preferably observe combustion tube In combustion case, be more convenient for being tested.

The utility model is further arranged to: the mounting base bottom is equipped with foot pad made of rubber.

Through the above technical solutions, the rubber mat of mounting base bottom plate setting can enable mounting seat more stably to put It sets on workbench.

In conclusion the utility model has the following beneficial effects: combustion barrel for test provide more closed environment, Heater strip provided around combustion barrel can preferably improve the temperature of test environment, so that testing environment closer to actual rings Border, it is ensured that the accuracy of test result.

Detailed description of the invention

Fig. 1 is the overall structure diagram of embodiment 1；

Fig. 2 is the decomposition diagram of embodiment 1；

Fig. 3 is the schematic diagram of internal structure of embodiment 1；

Fig. 4 is the structural schematic diagram of the fixation kit of embodiment 2.

Appended drawing reference: 1, control cabinet；11, oxygen hose；12, nitrogen tube；13, detection probe；14, igniter；2, mounting base； 21, exntension tubs；22, bulge loop；23, flange；24, foot pad；3, combustion barrel；4, filter；41, filter hole；42, clamping piece；5, close Seal；51, groove；6, heating unit；61, heater strip；7, fixation kit；71, fixed ring；72, mica sheet；73, through-hole；74, Fixed column；75, placing groove；8, clamping jaw.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment 1:

With reference to Fig. 1, a kind of oxygen index (OI) tester combustion barrel with pre- heat function, including control cabinet 1, mounting base 2, installation Seat 2 is connected with oxygen hose 11 and nitrogen tube 12, and mounting base 2 is equipped with combustion barrel 3, and combustion barrel 3 is equipped with heating unit 6, heating Unit 6 includes fixation kit 7, and fixation kit 7 includes the fixed ring 71 being set on combustion barrel 3, and fixed ring 71 is equipped with mica Piece 72, mica sheet 72 are equipped with through-hole 73, are equipped with heater strip 61 in through-hole 73.

Referring to figs. 2 and 3, exntension tubs 21 are extended in mounting base 2, exntension tubs 21 wrap 3 lower end of combustion barrel, extend Sealing ring 5 is equipped among cylinder 21 and combustion barrel 3；It is equipped with bulge loop 22 to the direction of combustion barrel 3 on exntension tubs 21, is set on sealing ring 5 Fluted 51, bulge loop 22 is fastened in groove 51 so that sealing ring 5 be bonded with the inner wall of exntension tubs 21 it is closer.

Referring to figs. 2 and 3, filter 4 is equipped in mounting base 2, filter 4 is equipped with filter hole 41, and mounting base 2 is equipped with For placing the flange 23 of filter 4, filter 4 is ridden upon on flange 23；Filter 4 is equipped with clamping piece 42, clamping piece 42 Arc-shaped, the convex surface of arc is bonded with the inner wall of combustion barrel 3.

Referring to figs. 2 and 3, oxygen hose 11 and nitrogen tube 12 are worn into mounting base 2, and are arranged below filter 4.Peace The detection probe 13 for detecting oxygen concentration is additionally provided in dress seat 2；Stock, fixed company on stock have been upwardly extended in mounting base 2 It is connected to igniter 14, clamping jaw 8 is additionally provided on stock, clamping jaw 8 is for clamping test sample.2 bottom of mounting base is equipped with foot pad 24, foot Pad 24 is made of rubber material, is played the role of buffering and is increased friction, places mounting base 2 more stable.

Embodiment 2:

With reference to Fig. 4, a kind of oxygen index (OI) tester combustion barrel with pre- heat function, the difference from embodiment 1 is that fixed Component 7 includes the fixed column 74 being fixedly connected with combustion barrel 3, and fixed column 74 is equipped with placing groove 75, and 61 inlay card of heater strip is being put It sets in slot 75.

Sample is clamped on clamping jaw 8, so by use process summary first in the oxygen index (OI) test for needing to carry out sample The lid of combustion barrel 3 is located in mounting base 2 afterwards；Heater strip 61 is allowed to be powered again, heater strip 61 generates heat and to the environment around combustion barrel 3 It is heated, when being heated to suitable temperature；It lights a fire again to sample, and using control cabinet 1 to the oxygen concentration in combustion barrel 3 It is controlled；After sample is ignited, stops increasing oxygen concentration, start to gradually decrease oxygen concentration, until specimen extinguishes.It tests After finishing, combustion barrel 3 can be removed, filter 4 is clamped on combustion barrel 3 by clamping piece 42, and filter 4 can be taken together Under, then the ashes of burning therein can be cleaned out.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of oxygen index (OI) tester combustion barrel with pre- heat function, including control cabinet (1), which is characterized in that further include peace It fills seat (2), mounting base (2) is equipped with combustion barrel (3), and mounting base (2), which is equipped with, is passed through oxygen and nitrogen in combustion barrel (3) Oxygen hose (11) and nitrogen tube (12), the control cabinet (1) are equipped with the adjusting knob for adjusting oxygen and nitrogen flow, peace The detection probe (13) and igniter (14) for detecting oxygen concentration are additionally provided on dress seat (2)；Combustion barrel (3) be equipped with for pair Combustion barrel (3) preheating heating unit (6), the heating unit (6) include the heating being arranged in combustion barrel (3) circumferential wall Silk (61), the fixation kit (7) for fixing the heater strip (61).

2. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the fixation Component (7) includes the fixed ring (71) being set on combustion barrel (3), and fixed ring (71) is equipped with mica sheet (72), mica sheet (72) it is equipped with the through-hole (73) passed through for the heater strip (61).

3. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the fixation Component (7) includes the fixed column (74) of combustion barrel (3) setting, and the fixed column (74) is equipped with for placing heater strip (61) Placing groove (75).

4. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the installation Seat (2) edge is extended with the exntension tubs (21) for wrapping up the combustion barrel (3), and exntension tubs (21) inner wall is equipped with and the burning The sealing ring (5) of cylinder (3) fitting.

5. the oxygen index (OI) tester combustion barrel according to claim 4 with pre- heat function, which is characterized in that the extension Cylinder (21) is equipped with inside bulge loop (22), and the sealing ring (5) is equipped with the groove (51) being clamped with bulge loop (22).

6. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the installation The filter (4) for stopping sample combustion ashes is equipped in seat (2), the mounting base (2) is equipped with for placing filter (4) flange (23), the filter (4) are equipped with several filter hole (41).

7. the oxygen index (OI) tester combustion barrel according to claim 6 with pre- heat function, which is characterized in that the filtering Piece (4) is equipped with the clamping piece (42) for contradicting with combustion barrel (3) inner wall, and the clamping piece (42) is arc-shaped.

8. the oxygen index (OI) tester combustion barrel according to claim 7 with pre- heat function, which is characterized in that the installation The clamping jaw (8) for clamping sample is equipped in seat (2).

9. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the burning Cylinder (3) is made of transparent glass.

10. the oxygen index (OI) tester combustion barrel according to claim 1 with pre- heat function, which is characterized in that the peace It fills seat (2) bottom and is equipped with foot pad (24) made of rubber.