CN201033287Y - Parallel-connection double-layer cold tube type reactor - Google Patents

Abstract

The utility model relates to a cold tube reactor with parallel two layers, which comprises an inner cylinder positioned in an outer cylinder. A plurality of catalyst baskets, a plurality of cooling tube bundles, and a central tube are arranged in the inner cylinder; a clapboard is positioned in the inner cylinder which is separated into independent upper catalyst basket and low catalyst basket by the clapboard; each catalyst basket is provided with a plurality of cooling tube bundles which are respectively arranged on a connection holder on the inner cylinder; a gas collector with a multi-hole plate is positioned at the bottom of the upper catalyst basket; a catalyst unloading tube at the lower end of the gas collector with the multi-hole plate passes through the lower catalyst basket, and is connected with a catalyst outlet bushing; a catalyst loading tube is arranged on an upper zero-pressing board and communicated with the lower catalyst basket. Compared with the cold tube methanol tower of same type, the utility model has the advantages of increasing the catalyst utilization coefficient, one eighth equipment running resistance, increasing the yield by sixty percent, reducing investment and manufacturing cost, at the same time regulating the gas flow of each layer, loading and unloading catalyst automatically, greatly improving the rate of equipment utilization, operating conveniently, and opening new possibilities in the maximization of the gas and solid phase catalyzing reactor of cold tube type for methane manufacturing.

Description

Double-deck cold-tube type reactor in parallel

Technical field

The utility model relates to chemical industry equipment, is specifically related to a kind of cold-tube type gas-solid catalysis device.

Technical background

For guaranteeing carrying out continuously of heat-producing chemical reaction, need constantly shift out reaction heat, so that course of reaction is carried out along the optimum temperature curve.As the methyl alcohol reaction of formation is the mutually reversible catalytic exothermic reaction of gas-solid, its reaction heat shifted out multiple mode, wherein present industrial main employing cold-tube type reactor, be that the limit border ring is removed heat, to reach optimum response speed, obtain satisfied output and conversion ratio, and the reactor resistance is reached minimize.The characteristics of this cold-tube type reactor are, because catalyst is aging easily, service life is short, thereby adopt in practice and load catalyst in a large number, strengthen reserve factor, to prolong the catalyst replacement cycle, in analog computation and actual production, reach the methanol output of expected design, its catalyst consumption and catalyst layer height only need have now about half of actual column, that is to say too big standby yarn number, make the catalyst bed layer height increase by one times, thereby increased equipment running resistance and power consumption greatly, reduced the disposal ability of tower.

Summary of the invention

The utility model provides a kind of increases the catalyst usage factor, significantly reduce equipment running resistance and can improve the gas-solid catalysis device of production capacity greatly.

The utility model purpose realizes in the following manner: the double-deck cold-tube type reactor of this parallel connection comprises the inner core that is assemblied in the outer cylinder body, be provided with basket in the inner core, cooler tube bundle and the central tube that is provided with electric heater, it is characterized in that described inner core middle part is provided with a lateral partitions, described dividing plate is separated into inner core, following basket independently separately, be respectively fitted with cooler tube bundle in each basket, cooler tube bundle is assemblied in respectively on the link of being located on the inner core, last basket bottom is a taper porous plate gas collector, and the catalyst downstream line of its lower end joins with a catalyst outlet sleeve after passing down basket; Upper strata zero rice pressing plate is provided with the catalyst that communicates with the lower floor basket and loads pipe, reactor head is provided with the cold shock looped pipeline line that communicates with upper strata basket and lower floor's basket respectively, the air inlet pipe of upper strata cooler tube bundle through communicating with the total endless tube of upper strata air inlet connects a layer sub-air chamber, and upper strata cooler tube bundle gas vent goes out the reactor bottom outlet through upper strata porous plate gas collector, sleeve pipe, top tank air outlet sleeve, outlet sleeve after stimulating the menstrual flow and going up the basket catalyst layer successively; Lower floor cooler tube bundle gas access through the total endless tube of lower floor's air inlet with successively on wear layer zero a rice pressing plate, dividing plate, upper strata porous plate gas collector, go up lower floor's air inlet pipe that basket communicates with upper strata sub-air chamber and join, lower floor's cooler tube bundle gas vent stimulates the menstrual flow down behind the basket catalyst layer successively and to go out reactor bottom through lower floor's porous plate gas collector and sleeve pipe and export.

Described catalyst downstream line preferably is positioned at the inner core centre, be threaded between catalyst downstream line and catalyst outlet sleeve, contact cooperation between catalyst outlet sleeve and the outlet of lower floor porous plate gas collector lower end, when needs draw off catalyst, the catalyst outlet sleeve is screwed out, and the catalyst in each basket can be respectively through the outlet of catalyst downstream line and lower floor's taper porous plate gas collector lower end outlet outflow reactor.

Described catalyst outlet sleeve bottom is provided with a gases at high pressure adjusting device, and this device is used to regulate two-layer gas flow.

The technological progress that the utility model is obtained: because the cold-tube type reactor of a large amount of catalyst of former filling is divided into reaction tower in parallel about in the of two, promptly the former standby catalyst layer in tower bottom being used parallel connection is a new tower, making a tower make two towers uses, compare with co-altitude cold-tube type methanol column of the same type, the potentiality of catalyst have fully been excavated, increased catalyst greatly and utilized the yarn number, the equipment running resistance only is 1/8 of a former tower, can make output increase more than 60% when significantly reducing resistance.Just can produce 100,000 tons of methyl alcohol as φ 1800 methanol columns, not only can reduce investment and production cost greatly, but also because of having the function of automatic loading, unloading catalyst, easy to operate feasible, start new way for current methanol production and cold-tube type gas solid catalytic reactor maximize, had promotion prospect and economic benefit preferably.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is existing cold-tube type gas reactor structural representation.

Fig. 2 is the utility model structural representation.

The specific embodiment

As shown in Figure 2, the utility model is the improvement of making on existing methyl alcohol synthetic reactor basis as shown in Figure 1, is equipped with inner core in the existing methyl alcohol synthetic reactor outer cylinder body, is provided with basket, cooler tube bundle in the inner core and is provided with the central tube of electric heater.A dividing plate 21 is established at inner core 15 middle parts, dividing plate 21 is separated into inner core 15, following basket 18a independently separately, 18b, each basket 18a, assemble cooler tube bundle 4b among the 18b respectively, 4a, cooler tube bundle 4b, 4a is assemblied in the link of being located on the inner core 15 19 respectively, on 23, last basket 18a bottom is a taper porous plate gas collector 20, the catalyst downstream line 2 of its lower end joins with a catalyst outlet sleeve 25 after passing down basket 18b, catalyst downstream line 2 is positioned at inner core 15 centres, catalyst downstream line 2 adopts with catalyst outlet sleeve 25 and is threaded, contact cooperation between catalyst outlet sleeve 25 and the outlet of lower floor porous plate gas collector 26 lower ends, a gases at high pressure adjusting device 27 is established in catalyst outlet sleeve 25 bottoms.On the zero rice pressing plate 16a of upper strata a catalyst that communicates with the basket 18b of lower floor is set and loads pipe 17, urceolus 1 top is provided with cold shock looped pipeline line 11a, the 11b that communicates with upper strata basket 18a and the basket 18b of lower floor respectively, the air inlet pipe 9 of upper strata cooler tube bundle 4b through communicating with the total endless tube 7a of upper strata air inlet connects layer sub-air chamber 10, and upper strata cooler tube bundle 4b gas vent goes out reactor bottom gas vent 14 through upper strata porous plate gas collector 20, sleeve pipe 3, top tank air outlet sleeve 24, outlet sleeve 25 after stimulating the menstrual flow and going up basket 18a catalyst layer successively; Lower floor cooler tube bundle 4a gas access through the total endless tube 7b of lower floor's air inlet with successively on wear layer zero a rice pressing plate 16b, dividing plate 21, upper strata porous plate gas collector 20, go up basket 18a and lower floor's air inlet pipe 5 of communicating with upper strata sub-air chamber 10 is joined, lower floor's cooler tube bundle 4a gas vent stimulate the menstrual flow sub-air chamber of lower floor 22, go out reactor bottom outlet 14 through lower floor's porous plate gas collector 26 and sleeve pipe 25 successively behind the basket 18b catalyst layer down.Ascending tube 8,12 outlets of cooler tube bundle 4b, 4a are respectively equipped with distribution device in gas-fluid, to prevent the bias current situation.The outlet sleeve 25 that is positioned at reactor bottom is concentric shape multilayer sleeve, and its outer layer sleeve is that last catalyst layer synthesis gas flows out pipe, and inferior skin is that the catalyst layer synthesis gas flows out pipe down, and central tube is the catalyst outlet sleeve.

Cold air is by on the urceolus 1, following two gas feed 28a, 28b enters reactor simultaneously, in the warp, enter the air inlet 6 that is positioned at the tower middle part after the annular space preheating between urceolus, enter upper strata sub-air chamber 10 behind central tube through electric heater the is housed 13 heated air heating reduction catalyst again, flow into upper strata inlet manifold 9 and the inlet manifold of lower floor 5 then respectively, again respectively through endless tube 7a, 7b enters the cooler tube bundle 4b of each layer, 4a, after cold air and the bed heat exchange, cold air temperature raises in the cold pipe, again respectively through tedge outlet 8, the distribution device in gas-fluid at 12 places makes exit gas enter basket 18a respectively with tangent screw direction rotational flow and after evenly mixing, 18b; Reacted upper strata methyl alcohol gas is successively via going out reactor bottom outlet 14 behind gas collector 20, sleeve pipe 3, top tank air outlet 24, the straight-through outlet sleeve 25; Lower layer methanol gas then goes out tower via gas collector 26, outlet sleeve 25.

Except that above-mentioned methyl alcohol synthetic reactor embodiment, those skilled in the art or those skilled in the art also can be used for the utility model other any form cold-tube type reactor, this should understand is in scope of the present utility model, is subjected to the restriction of the utility model claim.

Claims (3)

1. double-deck cold-tube type reactor of parallel connection, comprise the inner core (15) that is assemblied in the outer cylinder body (1), inner core is provided with basket in (15), cooler tube bundle and the central tube that is provided with electric heater, it is characterized in that described inner core (15) middle part is provided with a lateral partitions (21), described dividing plate (21) is separated into inner core (15), following basket (18a independently separately, 18b), each basket (18a, be respectively fitted with cooler tube bundle (4b 18b), 4a), cooler tube bundle (4b, 4a) be assemblied in the link of being located on the inner core (15) (19 respectively, 23) on, last basket (18a) bottom is a taper porous plate gas collector (20), and the catalyst downstream line (2) of its lower end passes down basket (18b) back and joins with a catalyst outlet sleeve (25); Upper strata zero rice pressing plate (16a) is provided with the catalyst that communicates with lower floor basket (18b) and loads pipe (17), reactor head is provided with the cold shock looped pipeline line (11a that communicates with upper strata basket (18a) and lower floor's basket (18b) respectively, 11b), upper strata cooler tube bundle (4b) connects a layer sub-air chamber (10) through the air inlet pipe (9) that communicates with the total endless tube of upper strata air inlet (7a), and upper strata cooler tube bundle (4b) gas vent stimulates the menstrual flow and goes up behind basket (18a) catalyst layer successively through upper strata porous plate gas collector (20), sleeve pipe (3), top tank air outlet sleeve (24), outlet sleeve (25) goes out reactor outlet (14); Lower floor's cooler tube bundle (4a) gas access through the total endless tube of lower floor's air inlet (7b) with successively on wear layer zero a rice pressing plate (16b), dividing plate (21), upper strata porous plate gas collector (20), go up lower floor's air inlet pipe (5) that basket (18a) communicates with upper strata sub-air chamber (10) and join, lower floor's cooler tube bundle (4a) gas vent stimulates the menstrual flow down and goes out reactor outlet (14) through lower floor's porous plate gas collector (26) and sleeve pipe (25) successively behind basket (18b) catalyst layer.

2. the double-deck cold-tube type reactor of parallel connection according to claim 1, it is characterized in that described catalyst downstream line (2) is positioned at inner core (15) centre, catalyst downstream line (2) is threaded with catalyst outlet sleeve (25), contacts cooperation between the outlet of catalyst outlet sleeve (25) and lower floor's porous plate gas collector (26) lower end.

3. the double-deck cold-tube type reactor of parallel connection according to claim 1 is characterized in that described catalyst outlet sleeve (25) bottom is provided with a gases at high pressure adjusting device (27).

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