CN112483228A - Ship tail gas aftertreatment injection system suitable for inland river ship - Google Patents

Ship tail gas aftertreatment injection system suitable for inland river ship Download PDF

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Publication number
CN112483228A
CN112483228A CN202011433188.0A CN202011433188A CN112483228A CN 112483228 A CN112483228 A CN 112483228A CN 202011433188 A CN202011433188 A CN 202011433188A CN 112483228 A CN112483228 A CN 112483228A
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CN
China
Prior art keywords
urea
pipe
injection system
urea pump
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011433188.0A
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Chinese (zh)
Inventor
刘屹
朱庆
李世龙
马辉宝
王春勇
胡莉华
王世祯
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Hefei Zhonghai Lanhang Technology Co ltd
Original Assignee
Hefei Zhonghai Lanhang Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Zhonghai Lanhang Technology Co ltd filed Critical Hefei Zhonghai Lanhang Technology Co ltd
Priority to CN202011433188.0A priority Critical patent/CN112483228A/en
Publication of CN112483228A publication Critical patent/CN112483228A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention discloses a ship tail gas post-treatment injection system suitable for an inland river ship, and relates to the field of diesel engine tail gas post-treatment. The invention can solve the problems that the urea tank and the injection system are arranged independently, the space occupation is large, the hose is easy to damage and not attractive after being bent for many times, and the maintenance and transportation are inconvenient.

Description

Ship tail gas aftertreatment injection system suitable for inland river ship
Technical Field
The invention relates to the field of diesel engine tail gas aftertreatment, in particular to a ship tail gas aftertreatment injection system suitable for inland river ships.
Background
Nowadays, national emission regulations are increasingly severe, ship tail gas aftertreatment purification systems are required to continuously adapt to the requirements of the times, tail gas emission amounts and engine powers of sea ships and inland ships are greatly different, so that different SCR tail gas aftertreatment purification technologies are required to be made according to different conditions, in the past, a urea tank and an injection system are arranged independently, the urea tank and the injection system are connected and transferred by leaning against various pipelines such as steel wire braided hoses and the like, the space occupation is large, the hoses are bent for many times, are easy to damage and are not attractive, special persons are required to carry out unscheduled arrangement, the maintenance and transportation are inconvenient, the modern technological development is difficult to meet, the times trend that equipment machines and the like are made to be lighter is met, the space of the cabins is also increasingly narrow, and various large-scale equipment in the cabins has to be improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a ship tail gas post-treatment injection system suitable for inland ships, and solves the problems that a urea tank and the injection system are arranged independently, the space is occupied, a hose is prone to damage and not attractive after being bent for multiple times, and the maintenance and transportation are inconvenient.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a boats and ships tail gas aftertreatment injection system suitable for inland river ship, includes the urea case, the surface of urea case sets up urea pump, oil water separator, urea pump feed liquor branch pipe and compressed air intake pipe be the nylon tube and with the surperficial rigid coupling of urea case, the urea case sets up urea pump feed liquor house steward, the both ends of urea pump feed liquor branch pipe are connected with the inlet of urea pump feed liquor house steward and urea pump respectively, the both ends of compressed air intake pipe are connected with the air inlet of oil water separator and urea pump respectively.
Further, the urea case includes preceding frame and back shrouding, preceding frame includes integrated into one piece's urea case upper and lower surface, front surface and controls the side, and each crest line department of preceding frame all sets up the fillet, the sealed rigid coupling of back shrouding and preceding frame, the rear portion of back shrouding sets up the mounting panel, urea pump and oil water separator all can dismantle with the mounting panel through the bolt and be connected, urea pump feed liquor branch pipe and compressed air intake pipe all bond on the mounting panel and fixed through the pipe strap, urea pump feed liquor branch pipe and compressed air intake pipe are the anticorrosion nylon tube, the quantity of urea pump and oil water separator is three.
Furthermore, the left side and the right side of the joint of the front frame and the rear sealing plate are respectively symmetrically provided with two right-angle connecting pieces, the upper side and the lower side of the joint of the front frame and the rear sealing plate are respectively symmetrically provided with three right-angle connecting pieces, and two surfaces of each right-angle connecting piece are respectively welded with the front frame and the rear sealing plate.
Further, urea case below sets up the base, and urea bottom of the case portion sets up accepts the dish, it sets up the casting pipe rather than being connected to accept a set below, the other end of casting pipe passes the base setting outside the base, the casting pipe sets up the tapping valve in the outside one end of base, urea pump inlet manifold sets up in the base outside, and urea pump inlet manifold's one end passes the base and is connected with the casting pipe.
Further, a transparent liquid level display window is arranged on the front surface of the urea box.
Further, the upper surface of urea case sets up the level sensor fixing base, sets up level sensor in the urea case, the upper surface that urea case was passed to level sensor's connecting wire is connected with the level sensor fixing base, the lower surface top of urea case is vertical sets firmly the perforated pipe, level sensor sets up in the perforated pipe.
Further, the upper surface of urea case sets up urea case feed liquor pipe and breather valve, set up the feed liquor valve on the urea case feed liquor pipe, the side of urea case sets up the overflow pipe.
Furthermore, four top corners of the upper surface of the urea box are respectively provided with a lifting lug.
Further, the left and right sides symmetry of urea case sets up the handle, the handle includes the handle body of U-shaped and sets up the handle support in handle body front and back both sides, the handle support is the drum structure, the tip of handle body inserts in the handle support and articulated with the handle support, the handle support sets up the baffle towards the upper portion of handle body one side.
Furthermore, a Y-shaped filter is arranged on a liquid inlet main pipe of the urea pump.
The invention has the following beneficial effects:
the post-treatment injection system integrates the urea box, the urea pump, the oil-water separator, the urea pump liquid inlet branch pipe and the compressed air inlet pipe are both nylon pipes and are fixedly connected with the surface of the urea box, the space occupation is small, the nylon pipes cannot be damaged and are attractive, and the maintenance and the transportation are also convenient.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of another angle of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is an internal structural view of the present invention;
fig. 5 is a schematic view of the structure of the handle.
Detailed Description
Example 1:
as shown in fig. 1-5, a boats and ships tail gas aftertreatment injection system suitable for inland river ship, including urea case 1, the surface of urea case 1 sets up urea pump 2, oil water separator 3, urea pump feed liquor branch pipe 21 and compressed air intake pipe 22 are the nylon tube and with urea case 1's surface rigid coupling, urea case 1 sets up urea pump feed liquor house steward 4, the both ends of urea pump feed liquor branch pipe 21 are connected with the inlet of urea pump feed liquor house steward 4 and urea pump 2 respectively, the both ends of compressed air intake pipe 22 are connected with the air inlet of oil water separator 3 and urea pump 2 respectively.
The nylon tube is resistant to bending and still cannot be damaged after being bent for many times. The urea pump liquid inlet branch pipe 21 and the compressed air inlet pipe 22 are fixedly connected to the surface of the urea box 1, and the shape is fixed and beautiful, and the arrangement by a special person is not needed.
The post-treatment injection system integrates the urea box, the urea pump, the oil-water separator, the urea pump liquid inlet branch pipe and the compressed air inlet pipe are both nylon pipes and are fixedly connected with the surface of the urea box, the space occupation is small, the nylon pipes cannot be damaged and are attractive, and the maintenance and the transportation are also convenient.
Urea case 1 includes preceding frame 12 and back shrouding 13, preceding frame 12 includes integrated into one piece's urea case 1 upper and lower surface, front surface and controls the side, and each crest line department of preceding frame 12 all sets up fillet 126, the sealed rigid coupling of back shrouding 13 and preceding frame 12, the rear portion of back shrouding 13 sets up mounting panel 11, urea pump 2 and oil water separator 3 all can be dismantled with mounting panel 11 through the bolt and be connected, urea pump feed liquor branch pipe 21 and compressed air intake pipe 22 all bond on mounting panel 11 and fixed through the pipe strap, urea pump feed liquor branch pipe 21 and compressed air intake pipe 22 are the anticorrosion nylon pipe, the quantity of urea pump 2 and oil water separator 3 is three.
The front frame 12 includes the upper and lower surfaces, the front surface, and the left and right side surfaces of the urea tank 1 which are integrally formed, so that there is no gap between the upper and lower surfaces, the front surface, and the left and right side surfaces of the urea tank, and the sealing performance is good.
Each crest line department of preceding frame 12 all sets up fillet 126, and the fillet prevents that operating personnel from being scratched by sharp-pointed crest line when touching the urea case surface.
The rear sealing plate 13 is fixedly connected with the front frame 12 in a sealing mode, the mounting plate 11 is arranged at the rear portion of the rear sealing plate 13, the urea pump 2 and the oil-water separator 3 are mounted on the mounting plate 11 when the holes are punched, and the sealing performance of the urea box cannot be affected.
Urea pump 2 and oil water separator 3 all can dismantle with mounting panel 11 through the bolt and be connected, are convenient for urea pump 2 and oil water separator 3's maintenance and change.
Urea pump feed liquor branch pipe 21 and compressed air intake pipe 22 all bond on mounting panel 11 and fixed through the pipe strap, and the bonding is a comparatively firm fixed mode, and the pipe strap has further improved the firmness that urea pump feed liquor branch pipe 21 and compressed air intake pipe 22 are connected with mounting panel 11.
The urea pump liquid inlet branch pipe 21 and the compressed air inlet pipe 22 are anti-corrosion nylon pipes which can resist urea corrosion and have long service life.
The left side and the right side of the joint of the front frame 12 and the rear sealing plate 13 are symmetrically provided with two right-angle connectors 121, the upper side and the lower side of the joint are symmetrically provided with three right-angle connectors 121, and two surfaces of each right-angle connector 121 are welded with the front frame 12 and the rear sealing plate 13 respectively.
Ten right angle connecting pieces 121 can ensure that the front frame 12 and the rear closing plate 13 are vertically welded, and the sealing performance is ensured, and meanwhile, the appearance is more attractive.
1 below of urea case sets up base 5, and 1 bottom of urea case sets up accepts dish 122, accept dish 122 below and set up the casting pipe 123 rather than being connected, the other end of casting pipe 123 passes base 5 and sets up in base 5 outsidely, casting pipe 123 sets up tapping valve 1231 in the one end of base 5 outside, urea pump inlet manifold 4 sets up in the base 5 outside, and base 5 and casting pipe 123 are passed to the one end of urea pump inlet manifold 4 and are connected.
When the urea solution in the urea tank needs to be completely discharged, the operator discharges the urea solution completely through the liquid discharge pipe 123.
The front surface of the urea tank 1 is provided with a transparent liquid level display window 124.
The liquid level display window 124 is used for an operator to observe the urea replenishment amount from the outside when the urea tank is replenished with urea.
The upper surface of urea case 1 sets up level sensor fixing base 125, sets up level sensor 1251 in the urea case 1, the upper surface that urea case 1 was passed to level sensor 1251's connecting wire 1252 is connected with level sensor fixing base 125, the vertical perforated pipe 1253 that sets firmly in lower surface top of urea case 1, level sensor 1251 sets up in perforated pipe 1253.
The liquid level sensor 1251 is connected to the shipborne DCU and is used for measuring the content of the urea solution in the urea tank in real time. The ship can rock in the advancing process, and the liquid level sensor 1251 can rock along with the ship, so that the liquid level cannot be accurately measured. The porous tube 1253 limits the shaking range of the liquid level sensor 1251, and meanwhile, the urea solution can enter the porous tube 1253 through the holes on the surface of the porous tube 1253, so that the normal operation of the liquid level sensor 1251 is ensured.
The upper surface of urea case 1 sets up urea case feed liquor pipe 14 and breather valve 15, set up feed liquor valve 141 on the urea case feed liquor pipe 14, the side of urea case 1 sets up overflow pipe 16.
Four top corners of the upper surface of the urea box 1 are respectively provided with a lifting lug 17.
Lifting lug 17 conveniently hoists urea case 1.
The handle 18 is symmetrically arranged on the left side and the right side of the urea box 1, the handle 18 comprises a U-shaped handle body 181 and handle supports 182 arranged on the front side and the rear side of the handle body 181, the handle supports 182 are of a cylindrical structure, the end parts of the handle body 181 are inserted into the handle supports 182 and hinged to the handle supports 182, and baffles 1821 are arranged on the upper parts of the handle supports 182 facing one side of the handle body 181.
The handle 18 facilitates lifting and carrying of the urea tank 1 by an operator, and the baffle 1821 is used for preventing the handle body 181 from rotating more than 90 degrees around the handle support 182 so that the hand of the operator is clamped.
And a Y-shaped filter 41 is arranged on the urea pump liquid inlet main pipe 4.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various changes and modifications to the equivalent embodiments without departing from the scope of the present invention, and all such changes, modifications, equivalents and improvements that can be made to the above embodiments without departing from the technical spirit of the present invention are within the spirit and principle of the present invention.

Claims (10)

1. The utility model provides a boats and ships tail gas aftertreatment injection system suitable for inland river ship, a serial communication port, including urea case (1), the surface of urea case (1) sets up urea pump (2), oil water separator (3), urea pump feed liquor branch pipe (21) and compressed air intake pipe (22) be the nylon tube and with the surface rigid coupling of urea case (1), urea case (1) sets up urea pump feed liquor house steward (4), the both ends of urea pump feed liquor branch pipe (21) are connected with the inlet of urea pump feed liquor house steward (4) and urea pump (2) respectively, the both ends of compressed air intake pipe (22) are connected with the air inlet of oil water separator (3) and urea pump (2) respectively.
2. The marine exhaust gas after-treatment injection system suitable for the inland river vessel as claimed in claim 1, wherein the urea tank (1) comprises a front frame (12) and a rear closing plate (13), the front frame (12) comprises an upper surface, a lower surface, a front surface, a left side and a right side of the urea tank (1) which are integrally formed, each ridge of the front frame (12) is provided with a fillet (126), the rear closing plate (13) is fixedly connected with the front frame (12) in a sealing manner, the rear portion of the rear closing plate (13) is provided with a mounting plate (11), the urea pump (2) and the oil-water separator (3) are detachably connected with the mounting plate (11) through bolts, the urea pump inlet branch pipe (21) and the compressed air inlet pipe (22) are both bonded on the mounting plate (11) and fixed through pipe clamps, the urea pump inlet branch pipe (21) and the compressed air inlet pipe (22) are corrosion-proof nylon pipes, the number of the urea pumps (2) and the number of the oil-water separators (3) are three.
3. The marine exhaust gas post-treatment spraying system applicable to inland river vessels as claimed in claim 2, wherein the front frame (12) is symmetrically provided with two right-angle connectors (121) at the left and right sides of the connection part with the rear closing plate (13), and symmetrically provided with three right-angle connectors (121) at the upper and lower sides, and two surfaces of the right-angle connectors (121) are welded with the front frame (12) and the rear closing plate (13).
4. The marine exhaust after-treatment injection system applicable to inland vessels is characterized in that a base (5) is arranged below the urea box (1), a receiving disc (122) is arranged at the bottom of the urea box (1), a liquid discharging pipe (123) connected with the receiving disc (122) is arranged below the receiving disc (122), the other end of the liquid discharging pipe (123) penetrates through the base (5) and is arranged outside the base (5), a liquid discharging valve (1231) is arranged at one end of the liquid discharging pipe (123) outside the base (5), a urea pump liquid inlet main pipe (4) is arranged outside the base (5), and one end of the urea pump liquid inlet main pipe (4) penetrates through the base (5) and is connected with the liquid discharging pipe (123).
5. The marine exhaust gas after-treatment injection system suitable for inland river vessels as claimed in claim 1, wherein the front surface of the urea tank (1) is provided with a transparent liquid level display window (124).
6. The marine exhaust gas aftertreatment injection system applicable to inland vessels is characterized in that a liquid level sensor fixing seat (125) is arranged on the upper surface of the urea tank (1), a liquid level sensor (1251) is arranged in the urea tank (1), the upper end of a connecting wire (1252) of the liquid level sensor (1251) penetrates through the upper surface of the urea tank (1) to be connected with the liquid level sensor fixing seat (125), a perforated pipe (1253) is vertically and fixedly arranged above the lower surface of the urea tank (1), and the liquid level sensor (1251) is arranged in the perforated pipe (1253).
7. The marine exhaust gas after-treatment injection system applicable to the inland river ship is characterized in that a urea tank liquid inlet pipe (14) and a breather valve (15) are arranged on the upper surface of the urea tank (1), a liquid inlet valve (141) is arranged on the urea tank liquid inlet pipe (14), and an overflow pipe (16) is arranged on the side surface of the urea tank (1).
8. The marine exhaust gas after-treatment injection system applicable to inland vessels as claimed in claim 1, wherein a lifting lug (17) is arranged at each of four corners of the upper surface of the urea tank (1).
9. The marine exhaust gas after-treatment injection system applicable to inland river vessels is characterized in that handles (18) are symmetrically arranged on the left side and the right side of the urea tank (1), each handle (18) comprises a U-shaped handle body (181) and handle supports (182) arranged on the front side and the rear side of the handle body (181), each handle support (182) is of a cylindrical structure, the end portions of the handle bodies (181) are inserted into the handle supports (182) and hinged to the handle supports (182), and baffles (1821) are arranged on the upper portions of the handle supports (182) facing one sides of the handle bodies (181).
10. The marine exhaust gas after-treatment injection system applicable to inland vessels is characterized in that a Y-shaped filter (41) is arranged on the urea pump inlet main pipe (4).
CN202011433188.0A 2020-12-10 2020-12-10 Ship tail gas aftertreatment injection system suitable for inland river ship Pending CN112483228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011433188.0A CN112483228A (en) 2020-12-10 2020-12-10 Ship tail gas aftertreatment injection system suitable for inland river ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011433188.0A CN112483228A (en) 2020-12-10 2020-12-10 Ship tail gas aftertreatment injection system suitable for inland river ship

Publications (1)

Publication Number Publication Date
CN112483228A true CN112483228A (en) 2021-03-12

Family

ID=74941208

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011433188.0A Pending CN112483228A (en) 2020-12-10 2020-12-10 Ship tail gas aftertreatment injection system suitable for inland river ship

Country Status (1)

Country Link
CN (1) CN112483228A (en)

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