CN212586284U

CN212586284U - Minimum ignition energy test instrument

Info

Publication number: CN212586284U
Application number: CN202021594406.4U
Authority: CN
Inventors: 周金勇
Original assignee: Hangzhou Kuannuo Hardware Machinery Equipment Co ltd
Current assignee: Hangzhou Kuannuo Hardware Machinery Equipment Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-02-23
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a minimum ignition can test instrument, including box, controller, the box inboard is equipped with air steel bottle, combustible gas steam generator, and it has intake pipe one all to run through in air steel bottle and the combustible gas steam generator, and an intake pipe end runs through the agitator tank, and the agitator tank inboard is equipped with (mixing) shaft one. The utility model discloses during the use, in the gas entering agitator tank in air steel bottle and the combustible gas steam generator, go into the detection case after the stirring of agitator tank in, through the accurate electric spark generator of detection case upside, measure combustible gas or combustible vapor's minimum ignition ability under the common cooperation of parts such as controller, through mutually supporting of parts such as vacuum pump, can take out remaining gas in the detection case, prevent that remaining air from producing the influence to the testing result in the detection case, make things convenient for the inboard gas of agitator tank to get into in the detection case simultaneously.

Description

Minimum ignition energy test instrument

Technical Field

The utility model relates to a testing arrangement specifically is a minimum ignition can test instrument.

Background

The minimum ignition energy, also referred to as ignition energy, minimum spark ignition energy or critical ignition energy, refers to the critical amount of energy necessary to ignite a mixture of combustible gas and air, which is the minimum amount of energy required to cause a concentration of combustible material or an explosion. The concentration of the mixture has a large effect on the ignition energy, and generally, the ignition energy required is minimal when the combustible gas concentration is higher than the stoichiometric concentration. Or the energy of the ignition source is less than the minimum energy, the combustible cannot catch fire. Therefore, the minimum ignition energy is also an important parameter for measuring the explosion risk of combustible gas, steam and dust. Whether the energy of the impact friction spark and the electrostatic spark with small release energy is larger than the minimum ignition energy or not. Is an important condition for judging whether the fire accident can be caused as a fire source.

Current minimum ignition can test instrument simple structure, the shock attenuation effect is relatively poor, and in the testing process, the detection of the detection case is influenced in the rocking of outside, influences and detects the precision. Therefore, the utility model provides a minimum ignition can test instrument to solve the above-mentioned problem of proposing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a minimum ignition can test instrument to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a minimum ignition energy test instrument comprises a box body and a controller, wherein an air steel cylinder and a combustible gas steam generator are arranged on the inner side of the box body, a first air inlet pipe penetrates through the air steel cylinder and the combustible gas steam generator, the tail end of the first air inlet pipe penetrates through a stirring box, a first stirring shaft is arranged on the inner side of the stirring box, a plurality of second stirring shafts are arranged on the lower side of the first stirring shaft, stirring blades are arranged on the outer sides of the first stirring shaft and the second stirring shaft, gears are sleeved on the outer sides of the first stirring shaft and the second stirring shaft, and a motor is;

the box inboard is equipped with the detection case, has run through intake pipe two in the agitator tank, and intake pipe two runs through the detection case, and the detection case upside is equipped with the top cap, and the top cap upper end is equipped with accurate electric spark generator, and the detection case lower extreme is equipped with a plurality of shock attenuation pole, the shock attenuation pole run through the shock attenuation post and with shock attenuation post inner wall sliding connection, install damping spring in the shock attenuation post, the box inboard is equipped with the vacuum pump, the vacuum pump passes through the connecting pipe and is connected with the detection case.

As a further proposal, the box body is internally provided with an observation groove, an observation plate is arranged in the observation groove, and the observation plate is made of glass material.

As a further proposal, the first one-way valve is installed in the first air inlet pipe, and the second one-way valve is arranged in the second air inlet pipe.

As a further aspect of the present invention, the plurality of gears are connected by a chain transmission.

As a further aspect of the present invention, the shock absorbing rod is configured in a T-shape.

As a further proposal of the utility model, a control valve is arranged in the connecting pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses during the use, the gas in air steel bottle and the combustible gas steam generator gets into the agitator tank, gets into the detection case after the stirring of agitator tank in, through measuring combustible gas or combustible vapor's minimum ignition energy under the cooperation of parts such as the accurate electric spark generator of detection case upside, controller, through the mutual cooperation of parts such as vacuum pump, can take out the remaining gas in the detection case, prevent that the remaining air in the detection case from producing the influence to the testing result, make things convenient for the gas of agitator tank inboard to get into the detection case simultaneously;

2. through the mutual matching of the stirring box, the stirring shaft and other parts, the gas to be detected and the air can be fully mixed, the detection error is reduced, and the detection precision is improved; through mutually supporting of parts such as shock attenuation pole, shock attenuation post, external impact force is to the impact of detection case in the reducible detection case testing process, reduces rocking of detection case, improves the stability of detection case.

Drawings

Fig. 1 is a schematic diagram of a minimum ignition energy test apparatus.

Fig. 2 is a schematic diagram of an internal structure of a minimum ignition energy test apparatus.

Fig. 3 is a schematic structural view of a detection box in a minimum ignition energy test apparatus.

Fig. 4 is a schematic diagram of the structure at a in fig. 1 in a minimum ignition energy test apparatus.

Fig. 5 is a schematic diagram of the minimum ignition energy test apparatus at B in fig. 3.

In the figure: 1. a box body; 2. a controller; 3. an observation tank; 4. an observation plate; 5. an air cylinder; 6. a combustible gas steam generator; 7. a first air inlet pipe; 8. a stirring box; 9. a first stirring shaft; 10. a second stirring shaft; 11. a stirring blade; 12. a gear; 13. a chain; 14. a motor; 15. a detection box; 16. a top cover; 17. a precision electric spark generator; 18. a shock-absorbing lever; 19. a shock-absorbing post; 20. a damping spring; 21. a second air inlet pipe; 22. a vacuum pump; 23. a connecting pipe; 24. and (4) controlling the valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in an embodiment of the present invention, an apparatus for testing minimum ignition energy includes a box 1, a controller 2, an observation tank 3 disposed in the box 1, an observation plate 4 disposed in the observation tank 3, the observation plate 4 made of glass, an air cylinder 5 disposed inside the box 1, the fuel gas steam generator 6 is characterized in that a first air inlet pipe 7 penetrates through the air steel cylinder 5 and the fuel gas steam generator 6, the tail end of the first air inlet pipe 7 penetrates through the stirring box 8, a first check valve is installed in the first air inlet pipe 7, a first stirring shaft 9 is arranged on the inner side of the stirring box 8, a plurality of second stirring shafts 10 are arranged on the lower side of the first stirring shaft 9, stirring blades 11 are arranged on the outer sides of the first stirring shaft 9 and the second stirring shaft 10, gears 12 are sleeved on the outer sides of the first stirring shaft 9 and the second stirring shaft 10, the gears 12 are in transmission connection through chains 13, and a motor 14 is;

1 inboard of box is equipped with detection case 15, it has two 21 intake pipes to run through in the agitator tank 8, two 21 intake pipes run through detection case 15, be equipped with check valve two in the two 21 intake pipes, 15 upsides of detection case are equipped with top cap 16, top cap 16 upper end is equipped with accurate

electric spark generator

17, 15 lower extremes of detection case are equipped with a plurality of shock attenuation pole 18, shock attenuation pole 18 sets up to the T shape, shock attenuation pole 18 run through shock absorber 19 and with 19 inner wall sliding connection of shock absorber, install damping spring 20 in the shock absorber 19, 1 inboard of box is equipped with vacuum pump 22, vacuum pump 22 passes through connecting pipe 23 and is connected with detection case 15, install control valve 24 in the connecting pipe 23.

The utility model discloses a theory of operation is:

the utility model discloses during the use, the gas in air steel bottle 5 and the combustible gas steam generator 6 gets into in the agitator tank 8, get into in the detection case 15 after the stirring of agitator tank 8, through measuring combustible gas or combustible vapor's minimum ignition energy under the common cooperation of parts such as the accurate electric spark generator 17 of detection case 15 upside, controller 2, through the mutual cooperation of parts such as vacuum pump 22, can take out the remaining gas in the detection case 15, prevent that the remaining air in the detection case 15 from producing the influence to the testing result, make things convenient for the gas of agitator tank 8 inboard to get into in the detection case 15 simultaneously; through the mutual matching of the stirring box 8, the stirring shaft I9 and other components, the gas to be detected and air can be fully mixed, the detection error is reduced, and the detection precision is improved; through mutually supporting of parts such as shock attenuation pole 18, shock attenuation post 19, reducible detection case 15 detects in-process external impact force to detection case 15's impact, reduces rocking of detection case 15, improves detection case 15's stability.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A minimum ignition energy test instrument comprises a box body (1) and a controller (2), and is characterized in that an air steel cylinder (5) and a combustible gas steam generator (6) are arranged on the inner side of the box body (1), a first air inlet pipe (7) penetrates through the air steel cylinder (5) and the combustible gas steam generator (6), the tail end of the first air inlet pipe (7) penetrates through a stirring box (8), a first stirring shaft (9) is arranged on the inner side of the stirring box (8), a plurality of second stirring shafts (10) are arranged on the lower side of the first stirring shaft (9), stirring blades (11) are arranged on the outer sides of the first stirring shaft (9) and the second stirring shafts (10), gears (12) are sleeved on the outer sides of the first stirring shaft (9) and the second stirring shafts (10), and a motor (14);

box (1) inboard is equipped with detection case (15), it has intake pipe two (21) to run through in agitator tank (8), intake pipe two (21) run through detection case (15), detection case (15) upside is equipped with top cap (16), top cap (16) upper end is equipped with accurate electric spark generator (17), detection case (15) lower extreme is equipped with a plurality of shock attenuation pole (18), shock attenuation pole (18) run through shock absorber post (19) and with shock absorber post (19) inner wall sliding connection, install damping spring (20) in shock absorber post (19), box (1) inboard is equipped with vacuum pump (22), vacuum pump (22) are connected with detection case (15) through connecting pipe (23).

2. The minimum ignition energy test instrument according to claim 1, wherein an observation groove (3) is formed in the box body (1), an observation plate (4) is arranged in the observation groove (3), and the observation plate (4) is made of glass materials.

3. The minimum ignition energy test instrument as claimed in claim 1, wherein a first check valve is installed in the first air inlet pipe (7), and a second check valve is installed in the second air inlet pipe (21).

4. A minimum ignition energy test apparatus as claimed in claim 1, wherein the plurality of gears (12) are drivingly connected by a chain (13).

5. A minimum ignition energy test apparatus as claimed in claim 1, characterised in that the shock absorbing bar (18) is provided in a T-shape.

6. A minimum ignition energy test apparatus as claimed in claim 1, wherein a control valve (24) is installed in the connection pipe (23).