CN201319031Y - Small-scale device for thermal transition of pitch intermediate phase - Google Patents
Small-scale device for thermal transition of pitch intermediate phase Download PDFInfo
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- CN201319031Y CN201319031Y CNU2008201534805U CN200820153480U CN201319031Y CN 201319031 Y CN201319031 Y CN 201319031Y CN U2008201534805 U CNU2008201534805 U CN U2008201534805U CN 200820153480 U CN200820153480 U CN 200820153480U CN 201319031 Y CN201319031 Y CN 201319031Y
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- pipeline
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- test tube
- thermal transition
- surge tank
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Abstract
The utility model relates to a small-scale device for the thermal transition of the pitch intermediate phase. The device comprises a carbonizing device, a metallic sheath, a first pipeline, a first valve, a second pipeline and a second valve, wherein, the carbonizing device comprises a test tube; the metallic sheath comprises a sheath body and a cover body; an opening is formed at one end of the sheath body which integrally sheaths the test tube; the cover body covers the opening of the sheath body; the first pipeline realizes the gas intake of the test tube; one end of the first pipeline is arranged on the metallic sheath; the first valve is arranged on the first pipeline; the second pipeline realizes the gas discharge of test tube; one end of the second pipeline is arranged on the metallic sheath; and the second valve is arranged on the second pipeline. The utility model solves the problem that experiments on the thermal transition of the intermediate phase can be carried out only under normal pressure, and pilot-scale experiments or industrialized and pressurized experiments cannot be imitated when the test tube is adopted as the small-scale device at present.
Description
Technical field
The utility model relates to the small testing device of phase thermal transition in the middle of a kind of pitch, specifically, is to utilize pitch to make the small testing device that needle coke, charcoal fiber, carbon microspheres, Carbon foam etc. relate to the experiment usefulness of phase thermal transition in the middle of the pitch.
Background technology
Utilize pitch to make needle coke, charcoal fiber, carbon microspheres, Carbon foam etc., all will carry out the experiment of the middle phase thermal transition of pitch.In the prior art, relate to the lab scale of the experiment of the middle phase thermal transition of pitch, all adopt test tube as small testing device.During lab scale, test tube is directly inserted in the middle phase thermal transition stove firehole.Adopt test tube as small testing device at present, the lab scale of phase thermal transition experiment in the middle of can only under normal pressure, carrying out, and invisible spectro liquid spills easily in a large number, destroyed the physical environment of middle phase thermal transition, can not simulate the experiment under pilot scale and the industrialization band pressure situation, thereby present lab scale experiment can not provide accurate data for pilot scale and industrial experiment.
The utility model content
The purpose of this utility model is to provide the small testing device of the middle phase thermal transition of a kind of pitch, to solve present employing test tube as small testing device, the experiment of phase thermal transition can not be simulated the problem of the experiment under pilot scale and the industrialization band pressure situation in the middle of can only carrying out under normal pressure.
For achieving the above object, the utility model adopts following technical scheme:
The small testing device of phase thermal transition comprises carbonizing apparatus in the middle of the pitch, and described carbonizing apparatus comprises:
Test tube;
Metallic sheath, described metallic sheath comprise an end opening, entangle the body of described test tube and cover the lid of the opening of described body on the whole;
Realize first pipeline of described test tube air inlet, one of described first pipeline is arranged on the described metallic sheath;
First valve, described first valve are arranged on described first pipeline;
Realize second pipeline that described test tube is given vent to anger, one of described second pipeline is arranged on the described metallic sheath;
Second valve, described second valve is arranged on described second pipeline.
Furthermore, described first valve, second valve all are stop valves.
The small testing device of phase thermal transition in the middle of the pitch under the technique scheme can feed pressure N by first pipeline in test tube
2, band is compressed into the thermal transition of interline phase in the time of can realizing the lab scale experiment, has simulated pilot scale band press strip spare.The small testing device band of phase thermal transition is pressed in the middle of the pitch, has limited spilling of liquid in vitro, makes that physics, the chemical system of thermal conversion reaction are basic identical mutually in the middle of physics, chemical system and the pilot scale of phase thermal conversion reaction in the middle of the lab scale.In addition, big quantity of fluid spills the situation that can not finish middle phase thermal transition test under the normal pressure because the small testing device of the middle phase thermal transition of pitch of the present utility model has effectively overcome, so improved the success ratio of test.
In order to reduce the unexpected fluctuation of pressure, for the safety of testing creates conditions smoothly, the small testing device of phase thermal transition also comprises pressure buffer device in the middle of the described pitch, and described pressure buffer device is communicated with described second pipeline.
Further, described pressure buffer device comprises:
Inner first surge tank that forms cavity, the other end of described second pipeline is communicated with the cavity of described first surge tank;
Inner second surge tank that forms cavity;
The 3rd pipeline, two of described the 3rd pipeline are communicated with the cavity of described first surge tank and the cavity of described second surge tank respectively;
The 3rd valve, described the 3rd valve are arranged on described the 3rd pipeline;
Measure first tensimeter of the gaseous tension in the cavity of described first surge tank, described first tensimeter is installed on described first surge tank;
The 4th pipeline, a cavity that is communicated with described second surge tank of described the 4th pipeline;
The 4th valve, described the 4th valve are arranged on described the 4th pipeline;
Measure second tensimeter of the gaseous tension in the cavity of described second surge tank, described second tensimeter is installed on described second surge tank.
Furthermore, described the 3rd valve, the 4th valve all are needle valves.
Described test tube comprises the test tube body and is the hydraucone of integrative-structure with described test tube body that the body of described metallic sheath comprises the test tube body groove that holds described test tube body and holds described bell-mouthed hydraucone groove.Prevented that like this micro liquid from splashing the gap location of test tube and copper sheathing, thereby test tube can take out the success ratio of warranty test smoothly during off-test.
Further, described metallic sheath is a copper sheathing.Other metal is high because the coefficient of heat conductivity of copper and heat transfer coefficient compare, so generally adopt copper sheathing to reduce the error that temperature is brought.The main effect of metallic sheath is to hold pressure N in order to entangle test tube, to form
2The space, and conduct heat to test tube and invisible spectro material.
Description of drawings
Fig. 1 is the synoptic diagram of the small testing device of phase thermal transition in the middle of the pitch described in the embodiment.
Fig. 2 is the synoptic diagram of the test tube of the small testing device of phase thermal transition in the middle of the pitch of the present utility model.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Referring to Fig. 1.The small testing device of phase thermal transition is made up of carbonizing apparatus A and snubber assembly B in the middle of the pitch.
The carbonizing apparatus A of the small testing device of phase thermal transition is made up of test tube 4, metallic sheath 3, first pipeline 11, first valve 21, second pipeline 12 and second valve 22 in the middle of the pitch.
Again referring to Fig. 2.Test tube 4 comprises test tube body 41 and is the hydraucone 42 of integrative-structure with test tube body 41 that the body of metallic sheath comprises the test tube body groove that holds described test tube body 41 and holds the hydraucone groove of described hydraucone 42.Fitting in the lower edge of the hydraucone 42 of test tube 4 and the bottom of hydraucone groove, so just in time the slit between test tube body 41 and the test tube body groove is sealed.
Metallic sheath 3 comprises an end opening, entangles the body 31 of test tube 4 and cover the lid 32 of the opening of body 31 on the whole.
The pressure buffer device B of the small testing device of phase thermal transition is made up of first surge tank 51, second surge tank 52, the 3rd pipeline 13, the 3rd valve 23, first tensimeter 61, the 4th pipeline 14, the 4th valve 24 and second tensimeter 62 in the middle of the pitch.
First surge tank, the 51 inner cavitys that form are to hold N
2The other end of second pipeline 12 is communicated with the cavity of first surge tank 51.Specifically, first surge tank 51 is provided with the second pipeline socket (among the figure indicate), and the other end of second pipeline 12 is inserted in the second pipeline socket on first surge tank 51.
The inside of second surge tank 52 also forms cavity, to hold N
2
Two of the 3rd pipeline 13 is separately positioned on first surge tank 51 and second surge tank 52, is communicated with the cavity of first surge tank 51 and the cavity of second surge tank 52.Specifically, first surge tank 51 is provided with the 3rd pipeline socket (not indicating among the figure), also is provided with the 3rd pipeline socket (not indicating among the figure) on second surge tank 52.Two of the 3rd pipeline 13 is injected the 3rd pipeline socket on first surge tank 51 respectively and is neutralized in the 3rd pipeline socket on second surge tank 52.
The 3rd valve 23 is arranged on the 3rd pipeline 13.The 3rd valve 23 is pin valves, and the gaseous tension of small testing device of the present utility model is carried out coarse adjustment.
One of the 4th pipeline 14 is arranged on second surge tank 52, is communicated with the cavity of second surge tank 52.Specifically, second surge tank 52 is provided with the 4th pipeline socket (among the figure indicate), and of the 4th pipeline 14 is inserted in the 4th pipeline socket of second surge tank 52.
The 4th valve 24 is arranged on the 4th pipeline 14.The 4th valve 24 is needle valves, and gaseous tension is finely tuned.
The other end of first pipeline 11 (one of the left end among the figure) connects pressure nitrogen gas, the other end of the 4th pipeline 14 (among the figure one of right-hand member) logical atmosphere.When carrying out centre phase thermal transition experiment, the test tube 4 of phase thermal transition experiment places in the metallic sheath 3 in the middle of at first the preparation that is placed with raw material being carried out, and metallic sheath 3 inserts in the middle phase thermal transition stove firehole.Standard-sized sheet first valve 21, second valve 22, the 3rd valve 23, the 4th valve 24 carry out N then
2Displacement work.After displacement finishes, N
2Pressure can regulate voluntarily according to the experimental pressure of middle phase thermal transition, the experimental pressure of middle phase thermal transition is generally 0.1-0.4MPa, top pressure is that 0.5MPa can satisfy requirement of experiment fully.Work as N
2When reaching the experimental pressure requirement, close first valve 21, the 4th valve 24, the three valves 23 are provided with certain aperture, use when regulating in order to test.
Middle phase thermal transition stove carries out temperature programme by programmed temperature control instrument, and in temperature-rise period, thereby the material in the test tube 4 carries out thermal decomposition and the thermal polycondensation generated reactive gas causes pressure surge.The purpose that snubber assembly B is set is exactly in order to reduce the unexpected fluctuation of pressure, for the safety of testing creates conditions smoothly.The 3rd valve 23 can carry out coarse adjustment to the pressure of gas, and when the pressure of gas had bigger disturbance, available the 3rd valve 23 was regulated; The 4th valve 24 can be finely tuned the pressure of gas, and when the pressure of gas had microvariations, available the 4th valve 24 was regulated.When the experiment beginning, carry out coarse adjustment with the 3rd valve 23 earlier, when pressure surge hour, finely tune with the 4th valve 24 again, the gaseous tension that can guarantee small testing device of the present utility model like this is stable in the short time, after the gaseous tension of small testing device of the present utility model is stable, only, can guarantee to test and carry out with the fine setting of the 4th valve.In the process of experiment, second valve 22 is in full-gear always, when the 3rd valve 23 and the 4th valve 24 are malfunctioning, for the continuity that keeps testing, can enable second valve 22 and regulate.It is for micro liquid being splashed outward in the groove at body 31 tops of metallic sheath 3, prevented that micro liquid from splashing the gap location of test tube and body that test tube 4 is provided with hydraucone, thereby test tube can take out smoothly during off-test, has guaranteed the success ratio of test.
Illustrate the small testing device of phase thermal transition in the middle of the pitch of the present utility model below and can simulate experiment under pilot scale and the industrialization band pressure situation really.
Inversion of phases result in the middle of the optical microphotograph component of needle coke green coke can directly reflect, the quality of representing needle coke intuitively, for green coke, require to contain as far as possible many fibre structures, big schistose texture can be converted into filamentary structure in follow-up thermal conversion processes, worst is zyklopisch structure and strip structure.
Embodiment 1
Phase thermal transition condition in the middle of pilot scale, the lab scale: temperature: 450 ℃, reaction time: 15h, pressure: 0.4MPa.
Pilot scale adopts feeder pump to throw raw material into heating furnace, the heating furnace heating raw to required carbonization temperature to the charing tower, control certain pressure, time then and carry out charing.
What lab scale adopted is the small testing device of phase thermal transition in the middle of the pitch of the present utility model, carries out in the phase thermal transition stove firehole in the middle of inserting.
The phase thermal transition obtains the optical microphotograph component such as the table 1 of green coke in the middle of pilot scale, the lab scale:
The phase thermal transition obtains the optical microphotograph component of green coke in the middle of the pilot scale of table 1: embodiment 1, the lab scale
Embodiment 2
Phase thermal transition condition in the middle of pilot scale, the lab scale: temperature: 445 ℃, reaction time: 24h, pressure: 0.45MPa.
Pilot scale adopts feeder pump to throw raw material into heating furnace, the heating furnace heating raw to required carbonization temperature to the charing tower, control certain pressure, time then and carry out charing.
What lab scale adopted is the small testing device of phase thermal transition in the middle of the pitch of the present utility model, carries out in the phase thermal transition stove firehole in the middle of inserting.
The phase thermal transition obtains the optical microphotograph component such as the table 2 of green coke in the middle of pilot scale, the lab scale:
The phase thermal transition obtains the optical microphotograph component of green coke in the middle of the pilot scale of table 2: embodiment 2, the lab scale
From embodiment 1,2 as can be seen, the result that the lab scale carbonizing apparatus obtains conforms to the result that pilot plant test obtains basically, can simulate pilot plant test, has overcome normal pressure and has tested the shortcoming that can not accurately simulate and reflect test findings.Therefore the pilot scale and the industrial experiment of phase thermal transition in the middle of the lab scale carbonizing apparatus can be simulated for pilot scale and industrial experiment provide parameter more accurately, also shorten the process of experiment in addition, reduce the waste of pilot scale and a large amount of human and material resources of industrial experiment.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (7)
1, the small testing device of phase thermal transition in the middle of the pitch comprises carbonizing apparatus, it is characterized in that described carbonizing apparatus comprises:
Test tube;
Metallic sheath, described metallic sheath comprise an end opening, entangle the body of described test tube and cover the lid of the opening of described body on the whole;
Realize first pipeline of described test tube air inlet, one of described first pipeline is arranged on the described metallic sheath;
First valve, described first valve are arranged on described first pipeline;
Realize second pipeline that described test tube is given vent to anger, one of described second pipeline is arranged on the described metallic sheath;
Second valve, described second valve is arranged on described second pipeline.
2, the small testing device of phase thermal transition in the middle of the pitch according to claim 1 is characterized in that the small testing device of phase thermal transition also comprises pressure buffer device in the middle of the described pitch, and described pressure buffer device is communicated with described second pipeline.
3, the small testing device of phase thermal transition in the middle of the pitch according to claim 2 is characterized in that described pressure buffer device comprises:
Inner first surge tank that forms cavity, the other end of described second pipeline is communicated with the cavity of described first surge tank;
Inner second surge tank that forms cavity;
The 3rd pipeline, two of described the 3rd pipeline are communicated with the cavity of described first surge tank and the cavity of described second surge tank respectively;
The 3rd valve, described the 3rd valve are arranged on described the 3rd pipeline;
Measure first tensimeter of the gaseous tension in the cavity of described first surge tank, described first tensimeter is installed on described first surge tank;
The 4th pipeline, a cavity that is communicated with described second surge tank of described the 4th pipeline;
The 4th valve, described the 4th valve are arranged on described the 4th pipeline;
Measure second tensimeter of the gaseous tension in the cavity of described second surge tank, described second tensimeter is installed on described second surge tank.
4, the small testing device of phase thermal transition in the middle of the pitch according to claim 3, it is characterized in that: described the 3rd valve, the 4th valve all are needle valves.
5, the small testing device of phase thermal transition in the middle of the pitch according to claim 1, it is characterized in that: described first valve, second valve all are stop valves.
6, according to the small testing device of phase thermal transition in the middle of each described pitch of claim 1-5, it is characterized in that: described test tube comprises the test tube body and is the hydraucone of integrative-structure with described test tube body that the body of described metallic sheath comprises the test tube body groove that holds described test tube body and holds described bell-mouthed hydraucone groove.
7, according to the small testing device of phase thermal transition in the middle of each described pitch of claim 1-5, it is characterized in that: described metallic sheath is a copper sheathing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534805U CN201319031Y (en) | 2008-09-25 | 2008-09-25 | Small-scale device for thermal transition of pitch intermediate phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534805U CN201319031Y (en) | 2008-09-25 | 2008-09-25 | Small-scale device for thermal transition of pitch intermediate phase |
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| Publication Number | Publication Date |
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| CN201319031Y true CN201319031Y (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201534805U Expired - Fee Related CN201319031Y (en) | 2008-09-25 | 2008-09-25 | Small-scale device for thermal transition of pitch intermediate phase |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580805A (en) * | 2012-03-12 | 2012-07-18 | 中钢集团鞍山热能研究院有限公司 | Coking device for refined bitumen in laboratory |
-
2008
- 2008-09-25 CN CNU2008201534805U patent/CN201319031Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580805A (en) * | 2012-03-12 | 2012-07-18 | 中钢集团鞍山热能研究院有限公司 | Coking device for refined bitumen in laboratory |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20120925 |