CN203658289U - Liquid gasification and flow control device for measuring combustion limit of combustible liquid vapor - Google Patents
Liquid gasification and flow control device for measuring combustion limit of combustible liquid vapor Download PDFInfo
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- CN203658289U CN203658289U CN201320799976.0U CN201320799976U CN203658289U CN 203658289 U CN203658289 U CN 203658289U CN 201320799976 U CN201320799976 U CN 201320799976U CN 203658289 U CN203658289 U CN 203658289U
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Abstract
The utility model provides a liquid gasification and flow control device for measuring the combustion limit of combustible liquid vapor. The device comprises a liquid storage pipe, a gas storage pipe, a measuring pipe, a heating and temperature controlling device, ignition equipment, a high-temperature-resistant pipeline, a vacuum pressure meter, a high-temperature-resistant valve and a vacuum pump, wherein the liquid storage pipe, the gas storage pipe and the measuring pipe are connected in sequence through a pipeline, and safety valves are arranged on the liquid storage pipe and the testing pipe. The device is high in popularity, and can be used for measuring multiple types of combustible liquid vapor and performing measurement under different pressures.
Description
Technical field
The utility model belongs to flammable liquid vapor flame limit determination techniques field, and specifically, the utility model relates to a kind of liquid gasification and flow control apparatus of measuring for flammable liquid vapor flame limit.
Background technology
Combustible vapor (inflammable gas and flammable liquid steam) has two Flammability limits in air.Lower limit is burn in the air minimum scale of required combustion gas and air of combustible vapor; The upper limit is air and steam Cmax.Only have the concentration of steam in mixed gas of working as between bound, just to there is combustibility.
The principle of gas fuel burning limit determinator is in glass reaction tube, to light a fire after tested gas is mixed according to a certain percentage with air, observes its combustibility, thereby measures the concentration range of its burning.But, for the mensuration of flammable liquid vapor flame limit, such as aviation burning, the diesel oil of various models, industrial alcohol etc.Because of under normal temperature condition, flammable liquid steam is difficult to exist with gas form, and relevant temperature flowing control technique could not solve in addition.In addition, the most of measurement of object all measured under condition of normal pressure.
In view of the foregoing, while measuring flammable liquid vapor flame limit, develop a kind of temperature flowing control device, guarantee that flammable liquid steam does not liquefy, thereby guarantee the feasibility of measuring.Can also carry out the mensuration under different pressures condition simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of liquid gasification and flow control apparatus of measuring for (different pressures) flammable liquid vapor flame limit, can carry out flammable liquid vapor flame limit mensuration, this device not only simple in structure, applicability is wide, easy to operate, but also can promote the combustion limit of measuring the combustible vapor under different pressures condition.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of liquid gasification and flow control apparatus of measuring for flammable liquid vapor flame limit, comprise combustion limit mensuration pipe, view window, safety valve, spark electrode, heating and attemperating unit, vacuum manometer, AC power, high-tension transformer, high temp .-resistant valve, make up air unit, combustible vapor cylinder, vacuum air pump, liquid injection port and liquid storage pipe, liquid storage pipe is used for storing various liquid, top is provided with safety valve that can fluid injection, this liquid storage pipe is connected with cylinder through piping, the gas storage that in liquid storage pipe, flammable liquid changes into through heat air is in cylinder, be connected with mensuration pipe through piping again, measure pipe top and be provided with another safety valve and vacuum manometer, measure tube end and be provided with vacuum air pump and spark electrode.
Further, between described liquid storage pipe, cylinder and mensuration pipe, be equipped with valve.
Further, described vacuum manometer is located at measures pipe top, and described vacuum manometer is connected with mensuration pipe by safety valve.
Principle of the present utility model is:
The utility model can obtain combustion limit (explosion limits) parameter of combustible vapor (inflammable gas and flammable liquid steam), especially, at different pressures and temperature, controls and pre-blast protection for burning, has great significance.
The principle of apparatus of the present invention is in glass reaction tube, to light a fire after tested gas is mixed according to a certain percentage with air, observes its combustibility, thereby measures the concentration range of its burning.But, for the mensuration of flammable liquid vapor flame limit, such as aviation burning, the diesel oil of various models, industrial alcohol etc.Because of under normal temperature condition, flammable liquid steam is difficult to exist with gas form, and relevant temperature flowing control technique could not solve in addition.In addition, the most of measurement of object all measured under condition of normal pressure.
In view of the foregoing, while measuring flammable liquid vapor flame limit, develop a kind of temperature flowing control device, guarantee that flammable liquid steam does not liquefy, thereby guarantee the feasibility of measuring.Can also carry out the mensuration under different pressures and temperature conditions simultaneously.
Compared with prior art, the utlity model has following advantage:
1, this device has guaranteed to carry out the feasibility of flammable liquid vapor flame limit mensuration;
2, this device generalization is high, not only can measure multiple flammable liquid steam, can carry out the mensuration under different pressures simultaneously;
3, this device result is simple, cost is low;
4, this device is easy to operate, operating cost is low;
5, this equipment safety is good, can not produce blast, deflagration phenomenon.
Accompanying drawing explanation
Fig. 1 is a kind of liquid gasification of measuring for flammable liquid vapor flame limit of the utility model and the structural representation of flow control apparatus.
In Fig. 1,1 measures pipe for combustion limit, and 2 is view window, and 3 is safety valve, 4 is spark electrode, and 5 is heating and attemperating unit, and 6 is vacuum manometer, 7 is AC power, 8 is high-tension transformer, and 9 is high temp .-resistant valve, and 10 is make up air unit, 11 is combustible vapor cylinder, 12 is vacuum air pump, and 13 is liquid injection port, and 14 is liquid storage pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
Liquid gasification and the flow control apparatus measured for flammable liquid vapor flame limit, as shown in Figure 1, this device comprises combustion limit mensuration pipe 1 to its structural representation, be arranged on the view window 2 of measuring pipe 1 two ends, safety valve 3, spark electrode 4, heating and attemperating unit 5, vacuum manometer 6, AC power 7, high-tension transformer 8, high temp .-resistant valve 9, make up air unit 10, combustible vapor memotron 11, vacuum air pump 12, liquid injection port 13, liquid storage pipe 14.Spark electrode 4 is managed one end of 1 by mensuration and is deep into that to measure pipe inner, by regulating high-tension transformer 8, thereby provides different ignition energies.Liquid storage pipe 14 is for storing various liquid (gas fell this step), and top is provided with safety valve that can fluid injection, and this liquid storage pipe is connected with cylinder 11 through piping, and the interior flammable liquid of liquid storage pipe 14 passes through gas storage that heat air changes in cylinder 11.Be connected with mensuration pipe 1 through piping again, measure pipe top and be provided with safety valve 3 and vacuum manometer 6, measure tube end and be provided with vacuum air pump 12 and spark electrode 4.
While using this device, take following steps:
(1) first move make up air unit 10 and carry out the gas scrubbing of 3-5 time;
(2) start heating and attemperating unit 5, make temperature arrive mensuration combustion limit and test needed temperature requirement, generally will be higher than 50 ℃ of flammable liquid boiling points.Start the heating arrangement 5 of liquid storage pipe 14 simultaneously;
(3) start vacuum air pump 12 according to the predetermined speed of exhaust, make to measure pipe pressure and approach vacuum.Then pass into air and flammable liquid steam according to different intrinsic standoff ratios;
(4) whether starting ignition device, observed and had flash burn or detonation to occur by view window 2;
(5) under different pressures, regulate successively air intrinsic standoff ratios different from combustible vapor, can measure flammable liquid in the combustion limit under this pressure.
The not detailed disclosed part of the utility model belongs to the known technology of this area.
Although above the illustrative embodiment of the utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and the spirit and scope of the present utility model determined in; these variations are apparent, and all innovation and creation that utilize the utility model design are all at the row of protection.
Claims (3)
1. liquid gasification and a flow control apparatus of measuring for flammable liquid vapor flame limit, it is characterized in that, comprise combustion limit mensuration pipes (1), view window (2), safety valve (3), spark electrode (4), heating and attemperating unit (5), vacuum manometer (6), AC power (7), high-tension transformer (8), high temp .-resistant valve (9), make up air unit (10), combustible vapor cylinder (11), vacuum air pump (12), liquid injection port (13) and liquid storage pipe (14), liquid storage pipe (14) is for storing various liquid, top is provided with safety valve (3) that can fluid injection, this liquid storage pipe (14) is connected with cylinder (11) through piping, the gas storage that the interior flammable liquid of liquid storage pipe (14) changes into through heat air is in cylinder (11), be connected with mensuration pipe (1) through piping again, measure pipe (1) top and be provided with another safety valve (3) and vacuum manometer (6), measure pipe (1) end and be provided with vacuum air pump (12) and spark electrode (4).
2. a kind of liquid gasification and flow control apparatus of measuring for flammable liquid vapor flame limit according to claim 1, is characterized in that, between described liquid storage pipe (14), cylinder (11) and mensuration pipe (1), is equipped with high temp .-resistant valve.
3. a kind of liquid gasification and flow control apparatus of measuring for flammable liquid vapor flame limit according to claim 1, it is characterized in that, described vacuum manometer (6) is located at measures pipe top, and described vacuum manometer (6) is connected with mensuration pipe by safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799976.0U CN203658289U (en) | 2013-12-08 | 2013-12-08 | Liquid gasification and flow control device for measuring combustion limit of combustible liquid vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799976.0U CN203658289U (en) | 2013-12-08 | 2013-12-08 | Liquid gasification and flow control device for measuring combustion limit of combustible liquid vapor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658289U true CN203658289U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320799976.0U Expired - Fee Related CN203658289U (en) | 2013-12-08 | 2013-12-08 | Liquid gasification and flow control device for measuring combustion limit of combustible liquid vapor |
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| CN (1) | CN203658289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616411A (en) * | 2013-12-08 | 2014-03-05 | 中国科学技术大学 | Liquid gasifying and flow control device for measuring combustion limit of combustible liquid steam |
-
2013
- 2013-12-08 CN CN201320799976.0U patent/CN203658289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616411A (en) * | 2013-12-08 | 2014-03-05 | 中国科学技术大学 | Liquid gasifying and flow control device for measuring combustion limit of combustible liquid steam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20161208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |