CN111688880A

CN111688880A - Integrated auxiliary engine SCR reactor platform

Info

Publication number: CN111688880A
Application number: CN202010391109.8A
Authority: CN
Inventors: 方鹏; 徐梁; 周迓若
Original assignee: Chengxi Shipyard Co Ltd
Current assignee: Chengxi Shipyard Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-09-22

Abstract

The invention discloses an integrated auxiliary engine SCR reactor platform which comprises an integrated platform with a frame structure, wherein at least three openings for placing an auxiliary engine SCR reactor are formed in the platform, the platform is formed by fixing a plurality of angle steels or flat steels or channel steels, the openings are formed in the top of the platform, and a public base maintenance platform with the frame structure is arranged on the side surface of the platform. The invention makes 3 auxiliary engine SCR reactor bases into a whole, and simultaneously makes the reactor equipment base and the peripheral maintenance platform together; guaranteed equipment base intensity, designed 3 auxiliary engine SCR reactor bases into a whole, base intensity and stability are obviously higher than single SCR reactor base design, can effectively less vibrations problem that appear among the boats and ships operation process, whole base still non-deformable simultaneously.

Description

Integrated auxiliary engine SCR reactor platform

Technical Field

The invention relates to an integrated auxiliary engine SCR reactor platform.

Background

According to market feedback information in recent years, along with the rapid development of domestic paper making, the demand of the paper making industry for the wood chips of the paper making raw materials is increased dramatically, and the domestic demand for wood chip transport ships is also increased obviously. In order to meet the transformation development requirements of companies, companies decide to develop 70000DWT sawdust boats so as to widen the shipbuilding market of the companies, obtain a place in the subdivision market of the sawdust boats and obtain better economic benefits. Meanwhile, with the increasing environmental problems worldwide, the emission standard of the Tier3 in the international pollution prevention convention (MARPOL) for ships is a nitrogen oxide emission control area, after 2016, newly-built ships drive into the emission control area to meet the standard, and in order to meet the increasingly strict emission requirements, all hosts of the newly-built ships are required to meet the requirement of the Tier3(2016.1.1 is effective), at present, EGR systems (exhaust gas recirculation systems) or SCR systems (selective catalytic reduction technologies, which are divided into two types, namely a high-pressure end and a low-pressure end of the host) are commonly adopted, and 70000 ton sawdust ships are provided with a low-pressure SCR system. With the advent of global sulfur limits, high sulfur is then ready for use, and the alternative measures are nothing more than using low sulfur fuel or adding a desulfurizing tower. The ship adopts an I-shaped open desulfurizing tower, and the main engine exhaust gas passes through a boiler and the desulfurizing tower after passing through SCR, so that the design of a complete system and the arrangement of equipment pipelines are not small challenges, and relevant experience is accumulated for subsequent projects and reference samples are provided.

At present, the weight of an auxiliary engine SCR reactor of a 7-thousand DWT sawdust boat is large, the weight of a single engine reaches 3-4 tons, and the design strength of a base needs to be enough so as not to cause vibration or other problems. In addition, the SCR reactor needs to have a maintenance space around the SCR reactor, so that a maintenance platform needs to be arranged around the SCR reactor. If the SCRs are arranged individually as required above, a large space is often required, since typically a ship is equipped with 3 or more SCR reactors. Meanwhile, in the ship carrying stage, multiple times of hoisting are needed for single design, and the ship carrying efficiency is influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an integrated auxiliary engine SCR reactor platform, the equipment base has high strength and stability, the vibration problem in the running process of a ship can be effectively reduced, and the whole base is not easy to deform.

In order to achieve the purpose, the invention provides an integrated auxiliary engine SCR reactor platform which comprises an integrated platform in a frame structure, wherein at least three openings for placing an auxiliary engine SCR reactor are formed in the integrated platform, the platform is formed by fixing a plurality of angle steels or flat steels or channel steels, the openings are formed in the top of the integrated platform, and a common base maintenance platform in the frame structure is arranged on the side surface of the integrated platform. Guaranteed equipment base intensity, designed 3 auxiliary engine SCR reactor bases into a whole, base intensity and stability are obviously higher than single SCR reactor base design, can effectively less vibrations problem that appear among the boats and ships operation process, whole base still non-deformable simultaneously. The arrangement space is saved, 3 auxiliary machine SCR reactor base platforms are integrally designed, and one maintenance platform can be shared among 2 adjacent SCR reactors, so that a lot of space is saved compared with single arrangement, and especially when the space on a ship is limited and a plurality of auxiliary machine SCR reactors are equipped, the arrangement method has obvious advantages.

Further technical scheme is that public base overhauls the platform and is formed by angle steel or band steel or channel-section steel welding, and every public base overhauls the platform and includes one as the back timber on one side of platform top, and every public base overhauls the platform and still includes two welding handrails on the back timber, the vertical setting of handrail, welding set up the angle steel or band steel or the channel-section steel as the footboard that are on a parallel with the back timber between two handrails. The hoisting times during ship carrying are reduced, the multiple auxiliary engine SCR reactor base platforms are designed into a whole, hoisting can be completed at one time in the hoisting carrying stage, certain manpower and physics are saved, and the ship carrying efficiency is improved.

The technical scheme is that a safety rope storage box is arranged on one handrail of two handrails of each public base overhauling platform, one end of a safety rope is fixedly connected to the inner wall of the box of the safety rope storage box, and a prompt identification layer for prompting the fastening position of the safety rope is arranged on the other handrail of the two handrails of each public base overhauling platform; the position of the safety rope storage box is lower than the height of the pedal. When the safety rope is not needed to be overhauled, the safety rope can be folded and stacked in the safety rope storage box, when the safety rope is needed to be overhauled, the safety rope is pulled out, then the safety rope is wound around the pedal, the firm connection is realized in a mode that the spiral shackle is matched with the spiral opening of the rigging (the safety rope is tightened by adjusting the spiral shackle of the rigging), then the overhaul worker starts to overhaul, and the safety rope is folded into the safety rope storage box again after the overhaul is finished.

The further technical scheme is that the safety rope storage boxes on the adjacent public base overhauling platforms are arranged in a close proximity mode or the identification layers on the adjacent public base overhauling platforms are arranged in a close proximity mode. Like this the safety rope case on every public base overhauls platform is not unified to be set up on left handrail (or the handrail on right side) for the resonance that probably produces is avoided to the asymmetric setting of counter weight of whole integral type auxiliary engine SCR reactor platform, has improved the stability of equipment, can effectively less vibrations problem that appear among the ship operation process.

The technical scheme is that at least three fastening holes which are arranged from top to bottom and used for the safety ropes to pass through are arranged on the handrail of each public base overhauling platform, which is provided with the prompt identification layer. If vibration appears in auxiliary engine SCR reactor equipment in the boats and ships operation in-process after setting up like this, take out safety rope in the safety rope case, safety rope on different public base overhauls the platform passes the system of co-altitude and detains the hole, adopt the mode of screw shackle cooperation rigging spiral port to realize the different tightening up degree of safety rope (also be the flagging degree of safety rope on different public base overhauls the platform different even passing behind the system of co-altitude and detaining the hole, with the counter weight difference on realizing every public base overhauls the platform through the different system of detaining position and the flagging height of safety rope, in order to reduce resonance, the stability of equipment has been improved.

The further technical scheme is that at least three digital identification layers which are arranged from top to bottom and correspond to the fastening hole positions and are used for representing the fastening positions of different weight maintainers are further arranged on the handrail provided with the fastening holes. Besides the advantages, the tying holes can prompt the best tying positions to reduce the adjusting time for adjusting and tightening the safety rope after tying (the tying holes at the upper positions are selected for heavy weights, and the tying holes at the lower positions are selected for light weights so that the inclination degree of the safety rope is larger, and therefore, the safety rope does not need to be tightened too much during final tightening).

The further technical proposal is that the top beam is made of angle steel or flat steel or channel steel, and the handrail is made of angle steel or flat steel or channel steel.

The further technical scheme is that the opening is rectangular and is formed by connecting four angle steels or flat steels end to end, and the size of the opening is smaller than the size of the lower end of the top of the auxiliary engine SCR reactor but larger than the size of the lower part of the auxiliary engine SCR reactor.

The invention also provides a technical scheme that the three-in-one auxiliary engine SCR reactor comprises a reactor body, three SCR reactors are arranged in the reactor body side by side, an air inlet and an air outlet are arranged on the reactor body, a main pipeline consisting of a plurality of modules is arranged between the reactor body and a waste gas discharge port, a plurality of pore channels are arranged on the modules, the pore channels are respectively a transverse hole, a longitudinal hole and an inclined hole, and the pore channels between the adjacent modules are communicated. The duct between the adjacent module is linked together in order to form the pipeline that the exhaust gas discharged into the SCR reactor, and through the stack setting in the different ducts of different modules, will regard as the pipeline that exhaust gas mouth and SCR reactor are connected originally and realize through the duct in present module, and the space is littleer for on-the-spot stringing is neat not in disorder, and the leakproofness is better, also easy to process, can directly process out the module of taking the duct through the cast mode.

The invention has the advantages and beneficial effects that: the safety rope storage box on each public base overhauling platform is not uniformly arranged on the left handrail (or the right handrail), so that the balance weight of the whole integrated auxiliary machine SCR reactor platform is asymmetrically arranged, possible resonance is avoided, the stability of the equipment is improved, and the vibration problem in the running process of ships can be effectively reduced. If the auxiliary engine SCR reactor equipment appears vibrating in the ship operation process, take out the safety rope from the safety rope storage box, the safety rope on different public base maintenance platforms passes the knot hole of the system of co-altitude not, adopt the mode of screw shackle cooperation rigging spiral mouth to realize the different tightening up degree of safety rope (also be the flagging degree of safety rope on different public base maintenance platforms is different) even after passing the knot hole of co-altitude not, with the counter weight difference on realizing every public base maintenance platform through the different knot position of safety rope and flagging height, in order to reduce resonance, the stability of equipment has been improved. Besides the advantages, the buckling holes can prompt the optimal buckling positions to reduce the adjustment time for adjusting and tightening the safety rope after buckling (the weight of the buckling holes is selected to be closer to the upper position, and the weight of the buckling holes is light, the buckling holes below the lower position are selected to enable the inclination degree of the safety rope to be larger, so that the safety rope does not need to be tightened too much during final tightening). Guaranteed equipment base intensity, designed 3 auxiliary engine SCR reactor bases into a whole, base intensity and stability are obviously higher than single SCR reactor base design, can effectively less vibrations problem that appear among the boats and ships operation process, whole base still non-deformable simultaneously. The arrangement space is saved, 3 auxiliary machine SCR reactor base platforms are integrally designed, and one maintenance platform can be shared among 2 adjacent SCR reactors, so that a lot of space is saved compared with single arrangement, and especially when the space on a ship is limited and a plurality of auxiliary machine SCR reactors are equipped, the arrangement method has obvious advantages. The hoisting times during ship carrying are reduced, the multiple auxiliary engine SCR reactor base platforms are designed into a whole, hoisting can be completed at one time in the hoisting carrying stage, certain manpower and physics are saved, and the ship carrying efficiency is improved.

Drawings

FIG. 1 is a schematic view of the operating state of an integrated auxiliary SCR reactor platform according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a top view of the present invention;

FIG. 5 is a sectional view taken along line B-1 of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-2 of FIG. 4;

FIG. 7 is a cross-sectional view taken along line A-1 of FIG. 4;

FIG. 8 is a cross-sectional view taken along line A-2 of FIG. 4;

FIG. 9 is a cross-sectional view taken along line A-3 of FIG. 4;

FIG. 10 is a cross-sectional view taken along line A-4 of FIG. 4;

FIG. 11 is a schematic view of FIG. 5 after showing the safety line storage box, the reminder tab layer, the tie-down hole, and the number tab layer;

FIG. 12 is a schematic view of the operating condition of the repairman servicing of FIG. 11;

FIG. 13 is a schematic view of FIG. 11 illustrating adjustment of the counterweights of different common base service platforms;

FIG. 14 is a schematic diagram of a second embodiment of the present invention.

In the figure: 1. an opening; 2. a top beam; 3. a handrail; 4. a pedal; 5. a safety cord storage case; 6. a prompt identification layer; 7. fastening holes; 8. a digital identification layer; 9. a reactor body; 10. an air inlet; 11. an air outlet; 12. an exhaust gas discharge port; 13. a module; 14. a tunnel.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

as shown in fig. 1 to 13 (for convenience of illustration, fig. 1 to 10 do not show a safety rope storage box, a prompt identification layer, a fastening hole and a digital identification layer), the invention relates to an integrated auxiliary machine SCR reactor platform, which comprises an integrated platform in a frame structure, wherein the platform is provided with at least three openings 1 for placing an auxiliary machine SCR reactor, the platform is formed by fixing a plurality of angle steels or flat steels or channel steels, the openings 1 are arranged at the top of the platform, and the side surface of the platform is provided with a common base maintenance platform in the frame structure. Public base overhauls the platform and is formed by angle steel or band steel or channel-section steel welding, and every public base overhauls the platform and includes one as one side back timber 2 of platform top, and every public base overhauls the platform and still includes two welding handrails 3 on back timber 2, the vertical setting of handrail 3, welding set up between two handrails 3 is on a parallel with back timber 2 as the angle steel or band steel or the channel-section steel of footboard 4. A safety rope storage box 5 is arranged on one handrail 3 of the two handrails 3 of each public base overhauling platform, one end of a safety rope is fixedly connected to the inner wall of the safety rope storage box 5, and a prompt identification layer 6 for prompting the fastening position of the safety rope is arranged on the other handrail 3 of the two handrails 3 of each public base overhauling platform; the safety cord storage case 5 is positioned lower than the height of the step 4. The safety rope storage boxes 5 on the adjacent public base overhauling platforms are arranged in close proximity or the identification layers on the adjacent public base overhauling platforms are arranged in close proximity. At least three fastening holes 7 which are arranged from top to bottom and used for the safety ropes to pass through are arranged on the handrail 3 of the prompt identification layer 6 arranged on each public base overhauling platform. The handrail 3 provided with the tying and buckling holes 7 is also provided with at least three digital identification layers 8 which are arranged from top to bottom and correspond to the tying and buckling holes 7 and are used for showing tying and buckling positions of different weight maintainers. The top beam 2 is made of angle steel, flat steel or channel steel, and the handrail 3 is made of angle steel, flat steel or channel steel. The opening 1 is rectangular and is formed by connecting four angle steels or flat steels end to end, and the size of the opening 1 is smaller than the size of the lower end of the top of the auxiliary engine SCR reactor but larger than the size of the lower part of the auxiliary engine SCR reactor.

Example two:

as shown in fig. 14, the reactor comprises a reactor body, three SCR reactors are placed in the reactor body 9 side by side, the reactor body is provided with an air inlet 10 and an air outlet 11, a main pipeline composed of a plurality of modules 13 is arranged between the reactor body and a waste gas discharge port 12, the modules are provided with a plurality of ducts 14 which are respectively a transverse hole, a longitudinal hole and an inclined hole, and the ducts between adjacent modules are communicated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Integral type auxiliary engine SCR reactor platform, its characterized in that, including the integral type platform that is frame construction, is equipped with at least three opening that is used for placeeing auxiliary engine SCR reactor on the platform, and the platform is formed by a plurality of angle steels or band steel or channel-section steel are fixed, and the opening setting is at the platform top, and the side of platform sets up frame construction's public base maintenance platform.

2. The integrated auxiliary machinery SCR reactor platform of claim 1, wherein the common base maintenance platforms are formed by welding angle steel or flat steel or channel steel, each common base maintenance platform comprises a top beam serving as one side of the top of the platform, each common base maintenance platform further comprises two handrails welded to the top beam, the handrails are arranged vertically, and angle steel or flat steel or channel steel serving as pedals and parallel to the top beam is welded between the two handrails.

3. The integrated auxiliary machine SCR reactor platform of claim 2, wherein one of the two handrails of each common base maintenance platform is provided with a safety rope storage box, the inner wall of the box of the safety rope storage box is fixedly connected with one end of a safety rope, and the other handrail of the two handrails of each common base maintenance platform is provided with a prompt identification layer for prompting the fastening position of the safety rope; the position of the safety rope storage box is lower than the height of the pedal.

4. The integrated auxiliary machinery SCR reactor platform of claim 3, wherein safety rope storage boxes on adjacent common base service platforms are located next to each other or an identification layer on adjacent common base service platforms are located next to each other.

5. The integrated auxiliary engine SCR reactor platform of claim 4, wherein the handrail of each common base maintenance platform provided with the prompt identification layer is provided with at least three fastening holes arranged from top to bottom for a safety rope to pass through.

6. The integrated auxiliary engine SCR reactor platform of claim 5, wherein the handrail provided with the fastening holes is further provided with at least three digital identification layers which are arranged from top to bottom and correspond to the fastening holes and are used for representing fastening positions of different weight maintainers.

7. The integrated auxiliary machinery SCR reactor platform of claim 6, wherein the top beam is made of angle steel or flat steel or channel steel, and the handrail is made of angle steel or flat steel or channel steel.

8. The integrated auxiliary machinery SCR reactor platform of claim 7, wherein the opening is rectangular and is made up of four angle or flat bars connected end to end, and the size of the opening is smaller than the size of the lower end of the top of the auxiliary machinery SCR reactor but larger than the size of the lower part of the auxiliary machinery SCR reactor.

9. The utility model provides a trinity auxiliary engine SCR reactor, its characterized in that, includes the reactor body, places three SCR reactor side by side in the reactor body, is equipped with an air inlet and gas outlet on the reactor body, sets up the main pipeline of constituteing by a plurality of module between reactor body and the exhaust-gas discharge mouth, is equipped with a plurality of pore in the module, is horizontal hole, vertical hole and inclined hole respectively, and the pore between the adjacent module is linked together.