CN205887260U - Atomizing venturi nozzle device of methyl alcohol system alkene - Google Patents

Abstract

The utility model provides an atomizing venturi nozzle device of methyl alcohol system alkene, structure pipe backend sets up the hybrid chamber in the mound, and structure pipeline front end sets up venturi structure shrinkage expansion section in the mound, hybrid chamber rear end oral area sets up the baffle, and the baffle center preformed hole of hybrid chamber sets up methyl alcohol feed nozzle in the hole, and preformed hole on the hybrid chamber pipe wall sets up nozzle steam feed nozzle in the hole, set up funnel type contraction section in hybrid chamber and the mound between the structure pipeline, structure pipeline front portion sets up venturi shrink expansion section in the mound, and the expansion section front portion of venturi shrink expansion section sets up the nozzle head, sets up the nozzle orifice plate between venturi shrink expansion section and the nozzle head, and nozzle orifice plate center sets up the spout, the utility model discloses a methyl alcohol and steam pass through behind the nozzle feed nozzle homogeneous mixing in the hybrid chamber, through the venturi atomizing fine to methyl alcohol, guarantee nozzle operation steady in a long -term, and the sprayability can be good, the energy saving and emission reduction high efficiency.

Description

A kind of Venturi nozzle device of methanol-to-olefins atomization

Technical field

This utility model is related to Chemical Industry methanol-to-olefins methanol atomizer, especially a kind of methanol-to-olefins mist The Venturi nozzle device changed.

Background technology

At present, Coal Energy Source is as the important composition of China's energy resource structure, for guaranteeing that China's the energy safety of supply has Vital effect.And Chemical Industry, as the powerful measure realizing coal resources efficient utilization, is directly connected to country Energy strategy develop the moving forward steadily of Chemical Industry, float in international oil price be difficult to determine, the whole world is to substituting industrial chemicals Under the background urgent all the more with the demand of alternative energy source, the coal chemical industry of China becomes China with its leading industrialization progress The important component part of energy resource structure.The investment opportunity of coal chemical industry nevertheless suffers from the highest attention of international and domestic investor, The industry of coal chemical technology amplify constantly make a breakthrough, the construction progress of large-scale coal liquifaction and olefin hydrocarbon making by coal device smoothly, diformazan The related product standard such as ether is put into effect in succession.

With the quick drop of coal price, crude oil is expanded than further with the price of coal, the unique energy knot of China Structure also improves the necessity of development Coal Chemical Industry further, and following China Chemical Industry, particularly New Coal Chemical are expected to meet Come fast-developing.New Coal Chemical can supplement well as petrochemical industry, has very strong strategic importance.

To methanol again in these three links of alkene, product increment part the fastest is the methanol alkene in methanol fractions to coal Hydrocarbon (methanol to olefin, mto) is the core technology of olefin hydrocarbon making by coal process route, be convert methanol into ethylene, third The technique of alkene.Mto technique opens the new technology route being produced basic organic chemical industry raw material by coal or natural gas, be have most uncommon Hope and replace the traditional route with oil for waste alkene, be also that to realize Coal Chemical Industry effective to petrochemical industry infiltration and development Approach.

In MTO technology, the methanol reaching feeding temperature is atomized into tiny drop entrance by atomizer Reactor, methanol and the high-temperature regenerated catalyst directly contact from regenerator in reactor, methanol is fast in catalyst surface Speed carries out exothermic reaction.

The reacting gas generating is folded through being located at two stage cyclone separator and third-stage cyclone separator removing in reactor Draw after the catalyst of band, after methanol-reaction gas heat exchanger cooling, deliver to rear portion chilling tower.Methanol atomizer is used for will Methanol is atomized as droplet, sprays and contacts with catalyst, generation chemical reaction, the higher target product olefins of output added value, In production process, need by venturi good atomization to methanol；In view of above-mentioned many reasons are it is proposed that a kind of methanol system The Venturi nozzle device of alkene atomization.

Utility model content

The purpose of this utility model is the reaction of generation in order to overcome current coal to methanol again in these three links of alkene Gas is drawn after the catalyst of two stage cyclone separator and third-stage cyclone separator removing entrained with through being located in reactor, warp After methanol-reaction gas heat exchanger cooling, deliver to rear portion chilling tower.Methanol atomizer is used for methanol is atomized as droplet, spray Go out and contact with catalyst, produce chemical reaction, the higher target product olefins of output added value, in production process, need to pass through Venturi good atomization to methanol；Designed by rational, a kind of Venturi nozzle device of methanol-to-olefins atomization be provided, This utility model is widely used in the industries such as petrochemical industry, iron and steel, non-ferrous metal metallurgy；In petrochemical industry lining construction, anchor Gu nail is helical wire or steel wire class spring structure；Predetermined different liner thickness, different temperature environments requires to press material The corresponding specification specification of matter and size Selection rolls to steel wire.By the length of the size Selection anchor studs of construction wall, The spring anchorage nail spooled is split.Change the time contact for face contact, is placed on construction surface, by spring anchorage nail and surface The place of contact carries out spot welding.Until whole piece spring anchorage nail is firmly welded on construction surface.The situation that one solder joint loosens Under, anchor studs also will not fall off, and plays good fixation；Structure is simple, easy to make, processing ease, can be with equipment Wall closely connects, long service life, has wide market prospect.

This utility model to achieve these goals, adopts the following technical scheme that, a kind of civilian mound of methanol-to-olefins atomization In spray nozzle device, be by structural pipeline in nozzle head, venturi shrinkage expansion section, mound, hybrid chamber, the spray of nozzle steam feed Mouth, methanol feed nozzle are constituted；Setting hybrid chamber in structural pipeline rear end in mound, setting Venturi tube structure in structural pipeline front end in mound Shrinkage expansion section；

Hybrid chamber rear end oral area setting dividing plate, the dividing plate center preformed hole of hybrid chamber, in hole, methanol feed nozzle is set, mixes Close preformed hole in lumen wall, in hole, nozzle steam feed nozzle is set, funnel type is set between structural pipeline in hybrid chamber and mound Contraction section；

Structural pipeline anterior setting venturi shrinkage expansion section in mound, the anterior setting of expansion segment of venturi shrinkage expansion section Nozzle head, arranges nozzle orifice plate, the centrally disposed spout of nozzle orifice plate between venturi shrinkage expansion section and nozzle head.

Beneficial effect is: methanol of the present utility model and steam are uniformly mixed after nozzle material-feeding nozzle in hybrid chamber Close, mixture enters elongated Venturi tube structure shrinkage expansion section section along pipeline, and continuous speedup when through contraction section, in Wen Qiu In at structure venturi speedup reach maximum, produce maximum pressure drop, diminish through expansion segment pressure, mixture is swollen with expansion segment Swollen dispersion, has certain momentum, is internally become through cutting and crushing by nozzle head and sprays from fan-shaped spout 1 after fine drop Go out, through the more sharp edge of fan-shaped spout cutting and crushing again, reach good atomizing effect.Simultaneously because structure sets Meter, during jet exits nozzle head, speed is less than 70m/s, and low speed will not impact wall of reactor, also slow down to nozzle body Abrasion, spray contact with catalyst, generation chemical reaction, produce the higher target product olefins of added value, production process In, need by venturi atomization good to methanol it is ensured that nozzle operation steady in a long-term, atomization is good, energy-saving and emission-reduction High efficiency.

Brief description

The utility model is described in further detail below in conjunction with the accompanying drawings:

Fig. 1 is general assembly structural representation；

In Fig. 1: nozzle head 1, venturi shrinkage expansion section 2, structural pipeline 3, hybrid chamber 4, nozzle steam feed in mound Nozzle 5, methanol feed nozzle 6.

Specific embodiment

With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings:

Setting hybrid chamber 4 in structural pipeline 3 rear end in mound, setting Venturi tube structure shrinkage expansion in structural pipeline 3 front end in mound Section 2；Hybrid chamber 4 rear end oral area setting dividing plate, the dividing plate center preformed hole of hybrid chamber 4, in hole, methanol feed nozzle 6 is set, mixes Close preformed hole on the tube wall of chamber 4, in hole, nozzle steam feed nozzle 5 is set, setting leakage between structural pipeline 3 in hybrid chamber 4 and mound Bucket type contraction section；

The anterior setting venturi shrinkage expansion section 2 of structural pipeline 3 in mound, the expansion segment of venturi shrinkage expansion section 2 is anterior Setting nozzle head 1, arranges nozzle orifice plate, the centrally disposed spray of nozzle orifice plate between venturi shrinkage expansion section 2 and nozzle head 1 Mouthful.

Claims (3)

1. the Venturi nozzle device of a kind of methanol-to-olefins atomization, be by nozzle head (1), venturi shrinkage expansion section (2), In mound, structural pipeline (3), hybrid chamber (4), nozzle steam feed nozzle (5), methanol feed nozzle (6) are constituted；It is characterized in that: Structural pipeline (3) rear end setting hybrid chamber (4) in mound, setting Venturi tube structure shrinkage expansion section in structural pipeline (3) front end in mound (2).

2. a kind of methanol-to-olefins atomization according to claim 1 Venturi nozzle device it is characterised in that: mixing Chamber (4) rear end oral area setting dividing plate, the dividing plate center preformed hole of hybrid chamber (4), setting methanol feed nozzle (6) in hole, mixing Preformed hole on chamber (4) tube wall, setting nozzle steam feed nozzle (5) in hole, in hybrid chamber (4) and mound between structural pipeline (3) Setting funnel type contraction section.

3. a kind of methanol-to-olefins atomization according to claim 1 Venturi nozzle device it is characterised in that: Qiu Li Structural pipeline (3) anterior setting venturi shrinkage expansion section (2), the expansion segment anterior setting spray of venturi shrinkage expansion section (2) Mouth portion (1), arranges nozzle orifice plate, the centrally disposed spray of nozzle orifice plate between venturi shrinkage expansion section (2) and nozzle head (1) Mouthful.