CN201882904U

CN201882904U - Low temperature methanol cracking machine

Info

Publication number: CN201882904U
Application number: CN201020644630XU
Authority: CN
Inventors: 韩志根
Original assignee: HANGZHOU JINZHOU ELECTRIC FURNACE CO Ltd
Current assignee: Hangzhou Jinzhou Technology Co., Ltd.
Priority date: 2010-11-26
Filing date: 2010-11-26
Publication date: 2011-06-29
Anticipated expiration: 2020-11-26

Abstract

The utility model relates to a low temperature methanol cracking machine, which comprises a heating vaporization tank, a catalytic reaction tank, a dosing pump and a cooler, wherein an air pump is communicated with the air cavity inlet of the heating vaporization tank through an air inlet pipe; the air cavity outlet of the heating vaporization tank is communicated with the air cavity inlet of the catalytic reaction tank; the air cavity outlet of the catalytic reaction tank is communicated with the air pump through an air outlet pipe; an air hole is formed on the air outlet pipe, so as to form air circulation; methanol liquid is communicated with the inlet of a vaporizer in the heating vaporization tank through a methanol liquid inlet pipe and the dosing pump; the outlet of the vaporizer is communicated with the inlet of the catalytic reaction tank; the outlet of the of the catalytic reaction tank is communicated with the inlet of the cooler; the outlet of the cooler is communicated with a cracked gas outlet through the gas outlet pipe of the cooler; and electric radiant tubes are arranged in the air cavity of the heating vaporization tank and that of the catalytic reaction tank. The utility model has the benefits as follows: air is used for heating, so that the cost is low and the heating uniformity is better; and the safety factor is high, and the problem of the ignition of heat transfer oil can be avoided.

Description

Methanol low-temperature decomposing machine

Technical field

The utility model relates to metal heat treatmet shielding gas generating apparatus, and especially a kind of methanol low-temperature decomposing machine is for steel-iron components provides stable methanol decomposition source of the gas when the heat.

Background technology

Metal polish thermal treatment must be heated under protective atmosphere or vacuum state.The protective atmosphere content is extensive, and adopts dissociated methanol gas to belong to inexpensive, practical and feasible method.Methanol liquid is transformed into methanol decomposition gas, finishes by methanol decomposition machine stove.Usually adopt Pintsch process machine stove, need under 930 ℃ condition cracking reaction to take place, energy consumption height, the easy carbon distribution of pipeline stop up non-stop run for a long time; If adopt low-temperature methanol catalytic pyrolysis technology, energy consumption reduces, but has short, problem such as gas production rate is unstable, the cracking raffinate is not more in catalyzer work-ing life, has influenced the effect of protective atmosphere.

A kind of oil-bath type methanol low-temperature decomposing machine has been invented by our company in 2006, notification number: CN1850584, adopt circulating heat conduction oil heating technique, be embodied as the methanol liquid vaporization and become carbon monoxide and hydrogen heat supply with the methanol gas low-temperature catalytic pyrolysis, because the circulation heating heat exchange and the accurate temperature controlling of thermal oil make vaporizer and the even rapid heating of catalytic cracking reaction device, temperature control is accurately reliable, catalyzer can be stablized to extend to more than 12 months work-ing life, and reducible activation is used; The catalytic pyrolysis gas production rate is stable; Cracking raffinate trace not, but regular discharge reclaim, be a kind of ideal methanol low-temperature decomposing machine.Its deficiency is: adopt thermal oil cost height, there is potential safety hazard on fire in thermal oil more than 350 degree temperature.

The utility model content

The purpose of this utility model is just in order to overcome the deficiency of above-mentioned technology, and the methanol low-temperature decomposing machine that a kind of cost is lower and safety coefficient is higher is provided.

The utility model solves the technical scheme that its technical problem adopts: this methanol low-temperature decomposing machine, comprise heating gasifying pot, catalytic reactor, volume pump and water cooler, air pump is connected by the air chamber import of blast pipe with the heating gasifying pot, the air chamber outlet of heating gasifying pot is connected with the air chamber import of catalytic reactor, the air chamber outlet of catalytic reactor is connected with air pump by air outlet tube, air outlet tube is provided with pore, constitutes air cycle; Methanol liquid is connected with vaporizer import in the heating gasifying pot by methyl alcohol liquid-inlet pipe, volume pump, the outlet of vaporizer is connected with the import of catalytic reactor, the outlet of catalytic reactor is connected with the import of water cooler, and the outlet of water cooler is connected with the splitting gas outlet by the water cooler escape pipe; Be equipped with electric radiant tube in the air chamber of described heating gasifying pot and catalytic reactor.

As preferably, described catalytic reactor comprises first catalytic reactor and second catalytic reactor (also can be three grades or level Four be connected or the like), the air chamber outlet of described heating gasifying pot is by being connected with the air chamber import of first catalytic reactor first communicating pipe, the air chamber outlet of first catalytic reactor is by being connected with the air chamber import of second catalytic reactor second communicating pipe, and the air chamber outlet of second catalytic reactor is connected with air pump by air outlet tube; The outlet of vaporizer is connected with the import of first catalytic reactor, and the outlet of first catalytic reactor is connected with the import of second catalytic reactor, and the outlet of second catalytic reactor is connected with the import of water cooler; Be equipped with electric radiant tube in described heating gasifying pot, first catalytic reactor and second catalytic reactor.

As preferably, be provided with pore near the air outlet tube of the air chamber outlet position of second catalytic reactor.

As preferably, be equipped with the thermopair that is used to measure temperature in described heating gasifying pot, first catalytic reactor and second catalytic reactor.

As preferably, the outlet at bottom of described water cooler is connected with liquid collecting bucket by tapping valve.

The effect that the utility model is useful is: 1, use air heating, cost is low and heating uniformity is better; 2, safety coefficient height can not go out thermal oil problem on fire.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Description of reference numerals: methyl alcohol liquid-inlet pipe 1, volume pump 2, heating gasifying pot 3, electric radiant tube 4, thermopair 5, air pump 6, blast pipe 7, air outlet tube 8, pore 9, first catalytic reactor, 10, the second catalytic reactors 11, tapping valve 12, water cooler 13, splitting gas outlet 15, the second communicating pipe 16 of 14, the first communicating pipe.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, this methanol low-temperature decomposing machine, comprise heating gasifying pot 3, first catalytic reactor 10, second catalytic reactor 11, volume pump 2 and water cooler 13, be equipped with electric radiant tube 4 in the air chamber of described heating gasifying pot 3, first catalytic reactor 10 and second catalytic reactor 11 and be used to measure the thermopair 5 of temperature.Air pump 6 is connected by the air chamber import of blast pipe 7 with heating gasifying pot 3, the air chamber outlet of heating gasifying pot 3 is connected by the air chamber import of first communicating pipe 15 with first catalytic reactor 10, the air chamber outlet of first catalytic reactor 10 is connected by the air chamber import of second communicating pipe 16 with second catalytic reactor 11, the air chamber outlet of second catalytic reactor 11 is connected with air pump 6 by air outlet tube 8, the air outlet tube 8 of the air chamber outlet position of close second catalytic reactor 11 is provided with pore 9, wherein pore 9 be provided with extremely importantly, impel whole air flowing to get up to constitute air cycle; Methanol liquid is connected by the vaporizer import in methyl alcohol liquid-inlet pipe 1, volume pump 2 and the heating gasifying pot 3, the outlet of vaporizer is connected with the import of first catalytic reactor 10, the outlet of first catalytic reactor 10 is connected with the import of second catalytic reactor 11, and the outlet of second catalytic reactor 11 is connected with the import of water cooler 13.The outlet of water cooler 13 is connected with splitting gas outlet 14 by the water cooler escape pipe, and the outlet at bottom of water cooler 13 is connected with liquid collecting bucket by tapping valve 12.

Principle of work: air pump 6 blows into air the air chamber formation air cycle of heating gasifying pot 3, first catalytic reactor 10, second catalytic reactor 11 successively by blast pipe 7, air in the air chamber is heated by electric radiant tube 4, air by heating comes heating methanol vaporizer and reactor, the air of heating is the methanol decomposition heat supply quickly and evenly, methanol liquid becomes gas, methanol gas generation low-temperature catalytic pyrolysis generates the cracking mixed gas; By water cooler, dissociated methanol can not collected recovery, and the splitting gas air feed is stable.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. methanol low-temperature decomposing machine, comprise heating gasifying pot (3), catalytic reactor, volume pump (2) and water cooler (13), it is characterized in that: air pump (6) is connected by the air chamber import of blast pipe (7) with heating gasifying pot (3), the air chamber outlet of heating gasifying pot (3) is connected with the air chamber import of catalytic reactor, the air chamber outlet of catalytic reactor is connected with air pump (6) by air outlet tube (8), air outlet tube (8) is provided with pore (9), constitutes air cycle; Methanol liquid is connected by the vaporizer import in methyl alcohol liquid-inlet pipe (1), volume pump (2) and the heating gasifying pot (3), the outlet of vaporizer is connected with the import of catalytic reactor, the outlet of catalytic reactor is connected with the import of water cooler (13), and the outlet of water cooler (13) is connected with splitting gas outlet (14) by the water cooler escape pipe; Be equipped with electric radiant tube (4) in the air chamber of described heating gasifying pot (3) and catalytic reactor.

2. methanol low-temperature decomposing machine according to claim 1, it is characterized in that: described catalytic reactor comprises first catalytic reactor (10) and second catalytic reactor (11), the air chamber outlet of described heating gasifying pot (3) is connected by the air chamber import of first communicating pipe (15) with first catalytic reactor (10), the air chamber outlet of first catalytic reactor (10) is connected by the air chamber import of second communicating pipe (16) with second catalytic reactor (11), and the air chamber outlet of second catalytic reactor (11) is connected with air pump (6) by air outlet tube (8); The outlet of vaporizer is connected with the import of first catalytic reactor (10), and the outlet of first catalytic reactor (10) is connected with the import of second catalytic reactor (11), and the outlet of second catalytic reactor (11) is connected with the import of water cooler (13); Be equipped with electric radiant tube (4) in described heating gasifying pot (3), first catalytic reactor (10) and second catalytic reactor (11).

3. methanol low-temperature decomposing machine according to claim 2 is characterized in that: the air outlet tube (8) of the air chamber outlet position of close second catalytic reactor (11) is provided with pore (9).

4. methanol low-temperature decomposing machine according to claim 2 is characterized in that: be equipped with the thermopair (5) that is used to measure temperature in described heating gasifying pot (3), first catalytic reactor (10) and second catalytic reactor (11).

5. methanol low-temperature decomposing machine according to claim 1 is characterized in that: the outlet at bottom of described water cooler (13) is connected with liquid collecting bucket by tapping valve (12).