CN204111685U - Heavy-oil catalytic atomizing nozzle - Google Patents
Heavy-oil catalytic atomizing nozzle Download PDFInfo
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- CN204111685U CN204111685U CN201420481969.0U CN201420481969U CN204111685U CN 204111685 U CN204111685 U CN 204111685U CN 201420481969 U CN201420481969 U CN 201420481969U CN 204111685 U CN204111685 U CN 204111685U
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- mixing section
- strut member
- heavy
- atomizing nozzle
- atomization
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Abstract
The utility model has about a kind of heavy-oil catalytic atomizing nozzle, comprise the first mixing section, the second mixing section, nozzle chambers and shower nozzle, this first mixing section and the second mixing section are fixedly arranged in nozzle chambers, and the inlet end of nozzle chambers is located at by this first mixing section, and this shower nozzle is located at the exit end of nozzle chambers; It also comprises atomization structure, and this atomization structure is fixedly arranged in nozzle chambers; This atomization structure comprises strut member and atomization mass, and this strut member and atomization mass are fixed together.By the utility model, oil gas can be made fully to mix, and by atomization mass wherein, oil gas is fully atomized, form the solid mist field that taper is controlled, not only structure is simple, easy to use, and also turndown ratio is good, and reliability is high.
Description
Technical field
The utility model relates to nozzle field, particularly relates to indispensable efficient heavy-oil catalytic atomizing nozzle in a kind of catalyst spray drying of petrochemical complex, shaping of catalyst production process.
Background technology
Current, atomizing feed nozzle is a gordian technique in catalytic cracking process.In the heavy oil fluid catalytic cracking course of processing, the quality of atomizing feed nozzle performance plays an important role to cracking reaction, product slates; Particularly when taking heavy oil as raw material, this impact is particularly outstanding.Wellatomized charging and high-temperature regenerated catalyst short-time contact, carry out violent catalytic cracking reaction, yield of light oil can be improved, reduce coke yield, improve product slates and prevent overcracking, eliminate the coking phenomenon in riser reactor, bring considerable economic benefit.Therefore, domestic and international relevant enterprise is being continually developed always and is being released new and effective atomizing feed nozzle, to adapt to the needs of heavy oil deep processing technical development and to obtain larger economic benefit.
The heavy oil feeding atomization nozzle used both at home and abroad is at present divided into following a few class substantially: the first kind is improved and formed on wikipedia type nozzle basis, is characterized in that utilization convergence-expansion shape venturi improves gas flow rate as far as possible and gas-liquid two-phase velocity contrast is atomized intensity to increase; Equations of The Second Kind is target spray nozzle, and its principle is that feed oil forms high-speed jet and clashes into metallic target under High Pressure Difference effect, and be atomized carrying out first time with crossflow effect, formation gas-spray two-phase flow, finally in the acceleration of shower nozzle nozzle, realizes secondary-atomizing; 3rd class is two venturi internal-mixing feed nozzles; 4th class is two-fluid rotarytype injector, which employs two-phase swirler; Etc..
All kinds of nozzle Problems existing is above: (1) material enters in nozzle chambers, and pressure drag easily causes nozzle chambers mechanical vibration, and oil gas can not fully mix; (2) adopt existing nozzle major part easily to smash catalyzer, cause oil quality to decline, polluted air; (3) easily coking etc.
Because above-mentioned existing atomizing feed nozzle Problems existing, the present inventor is based on being engaged in the practical experience and expertise that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of heavy-oil catalytic atomizing nozzle of novel texture, existing Problems existing can be solved, make it have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the utility model had practical value.
Summary of the invention
The purpose of this utility model is providing a kind of heavy-oil catalytic atomizing nozzle, and oil gas can be made fully to mix, and by atomization mass wherein, oil gas is fully atomized, and form the solid mist field that taper is controlled, not only structure is simple, easy to use, also turndown ratio is good, and reliability is high.
The purpose of this utility model adopts following technical scheme to realize.The utility model provides a kind of heavy-oil catalytic atomizing nozzle, comprise the first mixing section, the second mixing section, nozzle chambers and shower nozzle, this first mixing section and the second mixing section are fixedly arranged in nozzle chambers, and the inlet end of nozzle chambers is located at by this first mixing section, and this shower nozzle is located at the exit end of nozzle chambers; It also comprises atomization structure, and this atomization structure is fixedly arranged in nozzle chambers; This atomization structure comprises strut member and atomization mass, and this strut member and atomization mass are fixed together.
The purpose of this utility model can also be further achieved by the following technical measures.
Aforesaid heavy-oil catalytic atomizing nozzle, wherein this strut member comprises the first strut member and the second strut member, and this first strut member and the second strut member are all approximate cone-shape structures, and are relatively fixed together; Relative second mixing section of conical top of this first strut member is arranged, and the tapered side of this first strut member is provided with multiple inclined hole; The conical lower portion of this second strut member is fixed in the conical lower portion of the first strut member, and appears the inclined hole that place has; This atomization mass is fixed in the conical top of the second strut member, and relative inclined hole is arranged.
Aforesaid heavy-oil catalytic atomizing nozzle, the number of the inclined hole wherein on this first strut member is 8-10.
Aforesaid heavy-oil catalytic atomizing nozzle, wherein this atomization mass and the second strut member are one-body molded.
Aforesaid heavy-oil catalytic atomizing nozzle, wherein this first mixing section comprises sweating room, spiracular plate and preliminary mixing section; Concrete, this sweating room has radial primary steam entrance and axial secondary steam entrance; This spiracular plate is between sweating room and preliminary mixing section, and this spiracular plate is provided with multiple pore; The side of this preliminary mixing section is provided with stock oil entrance, and the sidewall of this preliminary mixing section is provided with inclined hole.
Aforesaid heavy-oil catalytic atomizing nozzle, the diameter of the inclined hole wherein on this preliminary mixing section differs, and also differs in each angle of inclination.
Aforesaid heavy-oil catalytic atomizing nozzle, the number of the inclined hole wherein on this preliminary mixing section is 8-20.
Aforesaid heavy-oil catalytic atomizing nozzle, the wherein coated preliminary mixing section of this second mixing section part, this second mixing section comprises Venturi tube, trunnion and expansion section, and this Venturi tube, trunnion and expansion section are connected in turn.
Aforesaid heavy-oil catalytic atomizing nozzle, wherein this shower nozzle is bigbore single opening.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, the utility model has following advantages and beneficial effect:
1, heavy-oil catalytic atomizing nozzle of the present utility model, takes full advantage of material pressure, flow velocity and vapor mixing, and in nozzle chambers, carried out two mixing, and oil gas is fully mixed.
2, heavy-oil catalytic atomizing nozzle of the present utility model, by atomization structure wherein, makes oil gas fully be atomized, and to form the controlled solid mist field of taper, adds atomization quality.
3, heavy-oil catalytic atomizing nozzle of the present utility model, not only structure is simple, easy to use, and also turndown ratio is good, and reliability is high.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technique means of the present utility model can be better understood, and can be implemented according to the content of specification sheets, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1: be the structural representation of heavy-oil catalytic atomizing nozzle of the present utility model.
Fig. 2: be the structural representation of atomization structure of the present utility model.
[main element nomenclature]
1: the first mixing section 2: the second mixing section
3: atomization structure 4: nozzle chambers
5: shower nozzle 11: sweating room
12: spiracular plate 13: preliminary mixing section
111: primary steam entrance 112: secondary steam entrance
131: stock oil entrance 132: inclined hole
133: end socket 21: Venturi tube
22: trunnion 23: expansion section
31: strut member 32: atomization mass
311: inclined hole 312: the first strut member
213: the second strut members
Embodiment
For further setting forth the utility model for the technique means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its embodiment of heavy-oil catalytic atomizing nozzle, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Consulting shown in Fig. 1, is the structural representation of heavy-oil catalytic atomizing nozzle of the present utility model.This heavy-oil catalytic atomizing nozzle comprises the first mixing section 1, second mixing section 2, atomization structure 3, nozzle chambers 4 and shower nozzle 5, and this first mixing section 1, second mixing section 2 and atomization structure 3 are all fixedly arranged in nozzle chambers 4, and this shower nozzle 5 is located at the exit end of nozzle chambers 4.
Wherein, the inlet end of nozzle chambers 4 is located at by this first mixing section 1, comprises sweating room 11, spiracular plate 12 and preliminary mixing section 13; Concrete, this sweating room 11 has radial primary steam entrance 111 and axial secondary steam entrance 112, namely primary steam enters sweating room 11 by radial direction, and secondary steam is by axially entering sweating room 11; This spiracular plate 12 is between sweating room 11 and preliminary mixing section 13, and this spiracular plate 12 is provided with multiple pore, makes the steam in sweating room 11 evenly enter preliminary mixing section 13; The side of this preliminary mixing section 13 is provided with stock oil entrance 131, and stock oil enters preliminary mixing section 13 from this stock oil entrance 131, and mixes for the first time with steam wherein, forms oil gas.In addition, the sidewall of this preliminary mixing section 13 is provided with the inclined hole 132 that diameter differs, also differ in each angle of inclination, for the ejection of first mixed oil gas, and the end socket 133 of this preliminary mixing section 13 is approximate cone-shape structures, the conical top of this end socket 133 has spray orifice, equally for the ejection of first mixed oil gas.The number of above-mentioned inclined hole 132, can determine according to actual demand, the utility model is not limited, and such as, the number of inclined hole 132 is 8-20.
The coated preliminary mixing section 13 of this second mixing section 2 part, makes the oil gas sprayed from preliminary mixing section 13 can enter into the second mixing section 2.This second mixing section 2 comprises Venturi tube 21, trunnion 22 and expansion section 23, and this Venturi tube 21, trunnion 22 and expansion section 23 are connected in turn.In actual applications, first mixed oil gas is made from the coarse to fine by Venturi tube 21, and accelerate flow velocity, simultaneously through trunnion 22 and expansion section 23, secondary mixing is more fully carried out to oil gas, form the oil-gas two-phase flow (bubble flow) containing a lot of water vapor bubble, make it to arrive atomization structure 3.
Specifically consulting shown in Fig. 2, is the structural representation of atomization structure of the present utility model again.This atomization structure 3 comprises strut member 31 and atomization mass 32, and this strut member 31 and atomization mass 32 are fixed together.Detailed, this strut member 31 comprises the first strut member 312 and the second strut member 313, and this first strut member 312 and the second strut member 313 are all approximate cone-shape structures, and are relatively fixed together; The conical top relative diffusion section 23 of this first strut member 312 is arranged, and to avoid the mixed oil gas of secondary to pile up at the first strut member 312 place, and the tapered side of this first strut member 312 is provided with multiple inclined hole 311, for the ejection of the mixed oil gas of secondary; The number of this inclined hole 311 can be determined according to actual demand, and the utility model is not limited, and such as, the number of inclined hole 311 is 8-10.The conical lower portion of this second strut member 313 is fixed in the conical lower portion of the first strut member 312, and appears the inclined hole 311 that place has.This atomization mass 32 is fixed in the conical top of the second strut member 313, and relative inclined hole 311 is arranged, and the oil gas major part namely sprayed from inclined hole 311 can be ejected into atomization mass 32, and by reflection ejection; When the hydrocarbons contact sprayed from inclined hole 311 is to atomization mass 32, this oil gas (mainly liquid) wherein can be divided, becomes less particle diameter; That is, by the effect of atomization mass 32, the above-mentioned oil gas sprayed from inclined hole 311 by collision atomization, can be formed tapered solid mist field, and sprays from shower nozzle 5.And the size of above-mentioned atomization mass 32, can determine according to actual demand, the utility model is not limited.And above-mentioned atomization mass 32 can be one-body molded with the second strut member 313.
What deserves to be explained is, in the utility model, this shower nozzle 5 is bigbore single openings, is beneficial to the ejection of oil gas.
Below the working process of heavy-oil catalytic atomizing nozzle of the present utility model is introduced.
First, stock oil enters preliminary mixing section 13 from stock oil entrance 131, simultaneously, primary steam enter sweating room 11 by radial direction and secondary steam by axially entering sweating room 11, and through spiracular plate 12, steam enters preliminary mixing section 13 and mixes for the first time, and steam generally selects water vapor, and water vapour is generally the overheated steam of 250-400 degree; Subsequently, first mixed oil gas enters the second mixing section 2 by the inclined hole 132 on preliminary mixing section 13, and carries out secondary mixing more fully through Venturi tube 21, trunnion 22 and expansion section 23; Finally, the oil gas of secondary mixing is atomized body 32 and collides atomization, forms tapered solid mist field (more small particle size), is sprayed by shower nozzle 5, and the fully comprehensive engagement reaction such as catalyzer.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a heavy-oil catalytic atomizing nozzle, comprise the first mixing section, the second mixing section, nozzle chambers and shower nozzle, this first mixing section and the second mixing section are fixedly arranged in nozzle chambers, and the inlet end of nozzle chambers is located at by this first mixing section, and this shower nozzle is located at the exit end of nozzle chambers;
It is characterized in that it also comprises atomization structure, this atomization structure is fixedly arranged in nozzle chambers; This atomization structure comprises strut member and atomization mass, and this strut member and atomization mass are fixed together.
2. heavy-oil catalytic atomizing nozzle according to claim 1, it is characterized in that wherein this strut member comprises the first strut member and the second strut member, this first strut member and the second strut member are all approximate cone-shape structures, and are relatively fixed together; Relative second mixing section of conical top of this first strut member is arranged, and the tapered side of this first strut member is provided with multiple inclined hole; The conical lower portion of this second strut member is fixed in the conical lower portion of the first strut member, and appears the inclined hole that place has; This atomization mass is fixed in the conical top of the second strut member, and relative inclined hole is arranged.
3. heavy-oil catalytic atomizing nozzle according to claim 2, is characterized in that the number of the inclined hole on wherein this first strut member is 8-10.
4. heavy-oil catalytic atomizing nozzle according to claim 2, is characterized in that wherein this atomization mass and the second strut member are one-body molded.
5. heavy-oil catalytic atomizing nozzle according to claim 1, is characterized in that wherein this first mixing section comprises sweating room, spiracular plate and preliminary mixing section; Concrete, this sweating room has radial primary steam entrance and axial secondary steam entrance; This spiracular plate is between sweating room and preliminary mixing section, and this spiracular plate is provided with multiple pore; The side of this preliminary mixing section is provided with stock oil entrance, and the sidewall of this preliminary mixing section is provided with inclined hole.
6. heavy-oil catalytic atomizing nozzle according to claim 5, it is characterized in that the diameter of the inclined hole on wherein this preliminary mixing section differs, also differs in each angle of inclination.
7. heavy-oil catalytic atomizing nozzle according to claim 5, is characterized in that the number of the inclined hole on wherein this preliminary mixing section is 8-20.
8. heavy-oil catalytic atomizing nozzle according to claim 1, it is characterized in that the wherein coated preliminary mixing section of this second mixing section part, this second mixing section comprises Venturi tube, trunnion and expansion section, and this Venturi tube, trunnion and expansion section are connected in turn.
9. heavy-oil catalytic atomizing nozzle according to claim 1, is characterized in that wherein this shower nozzle is bigbore single opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481969.0U CN204111685U (en) | 2014-08-25 | 2014-08-25 | Heavy-oil catalytic atomizing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481969.0U CN204111685U (en) | 2014-08-25 | 2014-08-25 | Heavy-oil catalytic atomizing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204111685U true CN204111685U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420481969.0U Expired - Fee Related CN204111685U (en) | 2014-08-25 | 2014-08-25 | Heavy-oil catalytic atomizing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204111685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN113441301A (en) * | 2021-07-21 | 2021-09-28 | 北京航空航天大学 | Single-phase internal shearing nozzle for atomizing shearing thinning fluid |
-
2014
- 2014-08-25 CN CN201420481969.0U patent/CN204111685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN113441301A (en) * | 2021-07-21 | 2021-09-28 | 北京航空航天大学 | Single-phase internal shearing nozzle for atomizing shearing thinning fluid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200825 |