CN209604123U - Ship denitration evaporator - Google Patents
Ship denitration evaporator Download PDFInfo
- Publication number
- CN209604123U CN209604123U CN201920206440.0U CN201920206440U CN209604123U CN 209604123 U CN209604123 U CN 209604123U CN 201920206440 U CN201920206440 U CN 201920206440U CN 209604123 U CN209604123 U CN 209604123U
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- cylinder
- conical head
- side wall
- gas outlet
- ship
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Abstract
The utility model discloses a kind of ship denitration evaporators, and cylinder including hollow cylindrical is welded in cylinder one end and has the first conical head of air inlet, and is welded in the cylinder other end and has the second conical head of gas outlet；Cylinder offers on the side side wall close to the first conical head adds port, the technique adapter tube being provided with outside connection inner barrel and cylinder on adding port；The side wall of cylinder is also provided with access hole, is provided with maintenance door on access hole；Deflector is provided in first conical head；Guide vane is being provided in the one third cylinder inner region of gas outlet and the second conical head；Cylinder is provided with the filter screen along the distribution of cylinder radial section in the side close to the first conical head；Invention evaporation structure is compact, multiple functional, has the characteristics that small in size, high-efficient, at low cost.
Description
Technical field
The present invention relates to a kind of boiler in Naval Architecture and Ocean Engineering field or the environmentally friendly corollary equipments of host, more specifically
It says, is related to a kind of ship denitration evaporator.
Background technique
As nitrogen oxides environmental pollution is got worse in ship tail gas, and day of associated emissions regulation in the world
Beneficial stringent, ship tail gas denitrogenation technology has become industry focus of attention.With IMO Tier III technical indicator in ICA
The implementation in area, the SCR technology of ship tail gas denitration is existing just gradually to be promoted and applied on real ship, related mating city
Field has a extensive future.
Before carrying out denitration process to ship tail gas, need that the reducibility gas such as ammonia are first added, and need ship tail
Gas is sufficiently mixed with ammonia, on the one hand this process is conducive to the abundant reaction of subsequent denitrification process, on the other hand utilizes ship
Tail gas heats to adapt to reaction temperature ammonia；To this in prior art denitration technology equipment or without using dedicated unit
The problems such as one step carries out operation or institute's sampling device there are volumes big, low efficiency, at high cost, be difficult to adapt to ship this
The use of the limited environment in special and space.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ship denitration evaporators, can
In order to achieve the above object, the present invention takes following technical scheme:
A kind of ship denitration evaporator, cylinder including hollow cylindrical are welded in cylinder one end and with air inlet
The first conical head, and be welded in the cylinder other end and have gas outlet the second conical head；Air inlet and air outlet
Line be cylinder central axes；
Cylinder offers on the side side wall close to the first conical head adds port, and connection cylinder is provided on adding port
Technique adapter tube outside internal portion and cylinder；
The side wall of cylinder is also provided with access hole, is provided with maintenance door on access hole；
Deflector is provided in first conical head；In the one third cylinder inner region and the second cone close to gas outlet
Guide vane is provided in shape end socket；
Cylinder is provided with the filter screen along the distribution of cylinder radial section in the side close to the first conical head.
Preferably, access hole has one and is located at the axial centre position of cylinder lateral wall.
Preferably, there are two the saddles for being used to support cylinder for the side wall fixation of cylinder.
Preferably, there are two lifting lugs for the side wall fixation of cylinder.
Preferably, filter screen is arranged two and is located at the intracorporal two different radial sections of cylinder.
Preferably, filter screen includes frame, and is set to the wire netting in lower portion gap；Frame includes circular outer
Portion's round frame, and it is connected to from the center of circle of external round frame multiple internal wire frames of external round frame；Multiple internal wire frames
External round frame is divided into multistage by frame.
Preferably, external round frame is divided into 8 sections by multiple internal wire frames.
Mixed process before denitration is carried out special disposal by evaporator of the present invention, is filled with ship tail gas by air inlet, is led to
Cross technique adapter tube be filled with ammonia after, ammonia and ship tail gas can be sufficiently mixed, ammonia can be preheated；Filter screen can
Prevent dust impurity and reaction catalyst fines etc. from entering engine；It can using conical head, deflector, guide vane etc.
The convenient conducting for gas；Openable maintenance door is overhauled when needing to overhaul evaporator inside, very convenient；This
Invention evaporation structure is compact, multiple functional, has the characteristics that small in size, high-efficient, at low cost.
Detailed description of the invention
Fig. 1 is evaporation structure schematic diagram of the present invention；
Fig. 2 is half of block schematic illustration of evaporator filter screen of the present invention.
In figure, 1, cylinder, the 2, first conical head, 21, air inlet, the 3, second conical head, 22, gas outlet, 4, technique
Adapter tube, 5, maintenance door, 6, deflector, 7, filter screen, 71, external round frame, 72, internal wire frame, 8, guide vane, 9, hang
Ear.
Specific embodiment
A specific embodiment of the invention is described with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of ship denitration evaporator of the present invention, cylinder 1, welding including hollow cylindrical
In 1 one end of cylinder and with the first conical head 2 of air inlet 21, and it is welded in 1 other end of cylinder and has gas outlet 22
The second conical head；Air inlet 21 and the line of gas outlet 22 are the central axes of cylinder 1；
Cylinder 1 offers on the side side wall close to the first conical head 2 adds port, and connection is provided on adding port
Technique adapter tube 4 outside 1 inside of cylinder and cylinder 1；
The side wall of cylinder 1 is also provided with access hole, and maintenance door 5 is provided on access hole；As one embodiment, access hole
There is one and is located at the axial centre position of 1 side wall of cylinder.
Deflector 6 is provided in first conical head 2；Close to gas outlet 22 1 inner region of one third cylinder and
Guide vane 8 is provided in second conical head 3；
Cylinder 1 is provided with the filter screen 7 along the distribution of 1 radial section of cylinder in the side close to the first conical head 2.As
One embodiment, two different radial sections that filter screen 7 is arranged two and is located in cylinder 1；
Filter screen 7 includes frame, and is set to the wire netting in lower portion gap；Frame includes circular external round frame
Frame 71, and it is connected to from the center of circle of external round frame 71 multiple internal wire frames 72 of external round frame 71；Multiple inner wires
External round frame 71 is divided into multistage by frame 72；More specifically, multiple internal wire frames 72 are by external 71 equal part of round frame
It is 8 sections.It takes this mode that wire netting can be split as to 8 groups to assemble, it is very firm and conveniently.
Evaporator of the present invention can for it is vertical be also it is horizontal, in the case where horizontal, the side wall of cylinder 1 is fixed, and there are two use
In the saddle of support cylinder 1；The side wall of cylinder 1 is fixed, and there are two lifting lugs 9, are moved with facilitating to evaporator of the present invention.
It is some parameters below: the classification society rules such as design specification ASMEVIII-1, GB150 and CCS, design pressure 0.1-
0.2MPa, 350-500 DEG C of design temperature, equipment body specifications parameter, diameter phi 800- φ 2000mm, length 3000mm-
6000mm, thickness of shell 6mm-20mm, material of main part are high temperature Cr-Mo steel, low-alloy steel.
In use, the ship tail gas with nitrogen oxides is passed through air inlet 21, before carrying out denitration process to ship tail gas,
It needs first to be mixed into reducibility gas, such as ammonia, therefore ammonia is passed through by technique adapter tube 4；In evaporator, ship tail gas because
It has surplus heat, ammonia can be heated from engine discharge band, so that the reaction for next step is prepared；Ship after being sufficiently mixed
Vessel exhaust and ammonia pass through guide vane 8, and the denitration process of next step is discharged and carried out from gas outlet 22；In the process, mistake
Strainer 7 can prevent dust impurity and reaction catalyst fines etc. from entering engine；Using conical head, deflector 6, water conservancy diversion
Blade 8 etc. can facilitate the conducting for gas；Openable maintenance door 5 is overhauled when needing to overhaul evaporator inside.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of ship denitration evaporator, which is characterized in that cylinder including hollow cylindrical is welded in described cylinder one end
And the first conical head of air inlet is had, and be welded in the cylinder other end and the second taper envelope with gas outlet
Head；The air inlet and the line of the gas outlet are the central axes of the cylinder；
The cylinder offers on the side side wall close to first conical head adds port, is arranged on port in described add
There is the technique adapter tube being connected to outside the inner barrel and the cylinder；
The side wall of the cylinder is also provided with access hole, is provided with maintenance door on the access hole；
Deflector is provided in first conical head；One third cylinder inner region and institute in the close gas outlet
It states in the second conical head and is provided with guide vane.
2. ship denitration evaporator according to claim 1, which is characterized in that the access hole has one and is located at described
The axial centre position of cylinder lateral wall.
3. ship denitration evaporator according to claim 1, which is characterized in that the side wall of the cylinder is fixed, and there are two use
In the saddle for supporting the cylinder.
4. according to claim 1 or 3 ship denitration evaporators, which is characterized in that the side wall of the cylinder is fixed with two
A lifting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206440.0U CN209604123U (en) | 2019-02-18 | 2019-02-18 | Ship denitration evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206440.0U CN209604123U (en) | 2019-02-18 | 2019-02-18 | Ship denitration evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604123U true CN209604123U (en) | 2019-11-08 |
Family
ID=68402224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920206440.0U Active CN209604123U (en) | 2019-02-18 | 2019-02-18 | Ship denitration evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604123U (en) |
-
2019
- 2019-02-18 CN CN201920206440.0U patent/CN209604123U/en active Active
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