CN2714568Y

CN2714568Y - Water power circulating device for pipe-shell type methanol synthesis tower shell pass

Info

Publication number: CN2714568Y
Application number: CNU200420010727XU
Authority: CN
Inventors: 刘宏建; 高恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-28
Filing date: 2004-04-28
Publication date: 2005-08-03
Anticipated expiration: 2014-04-28

Abstract

The utility model discloses a water power circulating device for pipe-shell type methanol synthesis tower shell pass, comprising a methanol synthesis tower(1), a reaction gas input tube(2), a hot-vapor rising pipe(3), a gas bag(4), a vapor-output pipe(5), a boiler water-supplying pipe(6), a water-dropping pipe(7), a 14-synthesis reaction tower pipe pass and a 15-synthesis reaction tower shell pass. The lower part of the gas bag-dropping pipe(7) is additionally provided with a water-supplying circulating device. A circulating water pump(8) is connected with the water inlet pipe of the shell pass of the methanol synthesis tower, i. e., the gas bag dropping pipe(7) through the water input pipe(9)of the circulating water pump and the water output pipe(10) of the circulating water pump. The pipes(9), (10) and the gas bag dropping pipe(7) are provided with valves (12), (13), (11). The efficiency of the methanol synthesis reaction is fully used, the energy is saved, and the production rate and the production value are increased.

Description

The water power circulation device of tube and shell type methanol synthesis converter shell side

Technical field:

The utility model relates to methyl alcohol building-up reactions technical field, a kind of water power circulation device of tube and shell type methanol synthesis converter shell side.

Background technology:

At present, in methanol production factory, the methyl alcohol building-up reactions is made raw material with the gas that contains carbon monoxide, carbonic acid gas and hydrogen, as shown in fig. 1: catalyzer is inserted in tube side (14) lining at methyl alcohol synthetic reactor, building-up reactions gas enters the tube side of synthetic tower from the synthetic tower top, shell side (15) lining is the ebullient feedwater.Carry out the methyl alcohol building-up reactions under the effect of catalyzer, the building-up reactions liberated heat passes to the boiled water of shell side, takes away the heat that reaction produces by the part vaporization of water.In the reaction heat recycle system of whole methyl alcohol synthetic reactor, because the boiled water of shell side is to lean on the density difference of water to carry out round-robin.Be that the interior water of drum (4) enters the synthetic tower shell side by downtake, after the synthetic tower shell side was heated, part was vaporized into small bubble, and density diminishes, and rises naturally, enters in the drum by upcast, and after the vapor-liquid separation, steam is emitted by pressure regulator valve.Water replenishes by oiler feed pipeline (6).The problem that exists is: the density difference by water circulates, and when load is equal to or less than design loading, is to meet the demands.Enterprise is the economic pursuit benefit, and the application of overload operation, especially high activated catalyst makes overload operation become possibility often.When load is high, because the density difference internal circulating load by water is too little, the synthetic heat release of methyl alcohol can not in time be taken away, hot(test)-spot temperature rising sintering of catalyst inactivation in the synthetic tower, the synthetic tower resistance increases, and is 340 tons of the thick methyl alcohol of daily output as the our factory maximum load, produce that synthetic tower catalyst layer resistance obviously increases after several days, after drop to the thick methyl alcohol 260-270 ton of daily output, catalyst layer still has the trend of increase, can only be controlled at daily output thick methyl alcohol below 260 tons now.Understand other Methanol Plant, change Methanol Plant, gas ore deposit, northwest, river Methanol Plant, grand celebration Methanol Plant, similarly situation all occurred as Shandong two.

Summary of the invention:

In order to overcome above-mentioned existing problem.The utility model provides a kind of water power circulation device of tube and shell type methanol synthesis converter shell side, so that faster, the more timely water yield that enters the methyl alcohol synthetic reactor shell side by increasing shifts out more reaction heat, make full use of the efficient of methyl alcohol building-up reactions tower, save energy, reduce cost, increase the output value, output.

The utility model adopts following technical scheme to solve the foregoing invention purpose:

The water power circulation device of described tube and shell type methanol synthesis converter shell side, be exactly to increase by a cover water supply circulation device at former drum downtake 7, water circulating pump 8, the suction culvert that inserts the methyl alcohol synthetic reactor shell side by

pipeline

9,10 is on the drum downtake 7, mounted

valve

12,13,11 on

pipeline

9,10 and former drum downtake 7.

Owing to adopted technical scheme as mentioned above, the utlity model has following superiority:

The utility model has increased the water yield that enters the synthetic tower shell side, thereby solves owing to reaction heat can not in time be taken away and suppresses the problem that resulting load can not improve; Thereby methanol output is improved greatly, economic benefit also significantly improves, increase behind the water pump by producing 300 tons of calculating of thick methyl alcohol (every day, production peak can reach 340 tons) every day, have a net increase of more than 40 ton of overstriking methyl alcohol comparable every day now, calculate by 0.92 ton of refined methanol of thick methanol production per ton, our factory refined methanol cost per ton less than is 1000 yuan now, and the average price in market is more than 2000 yuan, annual calculated by 330 days, but every year create beneficial result: 40 * 0.92 * (2000-1000) * 330=12144000 unit

Description of drawings:

Fig. 1 is existing methyl alcohol building-up reactions tower water circulation structure principle schematic:

The water power circulation device structural principle synoptic diagram of Fig. 2 tube and shell type methanol synthesis converter shell side:

As shown in Fig. 1,2: 1-methyl alcohol synthetic reactor, 2-reaction gas input tube, 3-hot steam riser culverts, the 4-drum, 5-steam delivery conduit, 6-oiler feed pipeline, 7-descending water pipeline, the 8-water circulating pump, 9-water circulating pump input water lines, 10-water circulating pump output water lines, 11,12, the 13-water control valve, 14-building-up reactions tower tube side, 15-building-up reactions tower shell side.

Embodiment one:

As shown in Fig. 1,2: the water power circulation device of this tube and shell type methanol synthesis converter shell side, water inlet pipe at former tube and shell type methanol synthesis converter shell side is that drum downtake (7) increases by a cover water supply circulation device exactly, water circulating pump (8) inserts on the drum downtake (7) by pipeline (9), (10), goes up mounted valve (12), (13), (11) at pipeline (9), (10) and drum downtake (7); At this moment, valve (11) closing condition, water in the drum enters in the water circulating pump by valve (12), the pressurization back enters the synthetic tower shell side by valve (13), owing to added water pump, increased the water yield that pumps into the synthetic tower shell side widely, thereby taken more heat out of, to satisfy the high loading requirement.

Claims

1, a kind of water power circulation device of tube and shell type methanol synthesis converter shell side, it has methyl alcohol synthetic reactor (1), reaction gas input tube (2), hot steam's riser culverts (3), drum (4), steam delivery conduit (5), oiler feed pipeline (6), descending water pipeline (7), 14-building-up reactions tower tube side, 15-building-up reactions tower shell side, it is characterized in that: described water power circulation device increases a cover water supply circulation device, water circulating pump (8) in the bottom of drum downtake (7), by water circulating pump input water pipe line (9), the suction culvert that water circulating pump output water lines (10) inserts the methyl alcohol synthetic reactor shell side is on the drum downtake (7), in pipeline (9), (10) and drum downtake (7) go up mounted valve (12), (13), (11).