CN113494340B - Urea tank assembly - Google Patents
Urea tank assembly Download PDFInfo
- Publication number
- CN113494340B CN113494340B CN202110854415.5A CN202110854415A CN113494340B CN 113494340 B CN113494340 B CN 113494340B CN 202110854415 A CN202110854415 A CN 202110854415A CN 113494340 B CN113494340 B CN 113494340B
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- CN
- China
- Prior art keywords
- urea
- pipe
- hole
- end cover
- heating block
- 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.)
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Classifications
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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
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
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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]
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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
- 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
- F01N2610/1486—Means to prevent the substance from freezing
Landscapes
- 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开了一种尿素箱总成，包括箱体、端盖、加热块、外管道组件和内管道组件，箱体的顶部设有端盖，端盖上方设置有加热块，加热块为导热固体金属，外管道组件包括回尿素管，吸尿素管和冷却液水管，内管道组件包括吸尿素内管、回尿素内管和螺旋加热管，回尿素内管远离端盖的一端设有出水口，所述出水口贴附在螺旋加热管表面，本发明可以有效充分的传递热量，迅速解冻尿素箱内的尿素液，同时维持外部尿素管路的温度，防止外部尿素管路被冻住，吸尿素管也能吸取到足够的尿素液用于循环。
The invention discloses a urea tank assembly, comprising a tank body, an end cover, a heating block, an outer pipe component and an inner pipe component. The top of the tank body is provided with an end cover, and a heating block is provided above the end cover, the heating block is made of heat-conducting solid metal, the outer pipe component comprises a urea return pipe, a urea absorption pipe and a coolant water pipe, the inner pipe component comprises a urea absorption inner pipe, a urea return inner pipe and a spiral heating pipe, and a water outlet is provided at one end of the urea return inner pipe away from the end cover, and the water outlet is attached to the surface of the spiral heating pipe. The invention can effectively and fully transfer heat, quickly thaw the urea liquid in the urea tank, and at the same time maintain the temperature of the external urea pipeline to prevent the external urea pipeline from being frozen, and the urea absorption pipe can also absorb enough urea liquid for circulation.
Description
Technical Field
The invention belongs to the technical field of urea boxes, and particularly relates to a urea box assembly.
Background
In order to ensure that the urea supply system can normally work in cold weather, the urea tank assembly is provided with a defrosting heating function, urea defrosting heating is divided into three parts, namely urea tank heating, urea supply unit heating and urea pipeline heating, wherein the urea tank heating mode comprises two modes, namely electric heating and cooling water heating, an electric heater is arranged in the urea tank and is heated by electric energy of a storage battery, the arrangement mode has a simple structure, no engine cooling water connecting pipeline is arranged, and the electric energy consumption of a single storage battery is particularly high, so that the application is less;
in the prior art, the cooling water is heated and is conducted to the urea pipe through the heat exchanger, the heat conducting performance is poor, the inside of the urea box is not completely thawed, the external urea pipeline is easily frozen, and the urea absorbing pipe cannot absorb enough urea liquid, so that the circulation of the urea liquid is affected.
Disclosure of Invention
The invention aims at solving the technical problem that the urea tank assembly comprises a tank body, an end cover, a heating block, an outer pipeline assembly and an inner pipeline assembly;
an end cover is arranged at the top of the box body;
the end cover is provided with a first hole, a second hole, a third hole, a water valve hole and a sensor hole;
a heating block is arranged above the end cover, a first through hole, a second through hole and a third through hole are formed in the lower end of the heating block, and the positions of the first hole, the second hole and the third hole on the end cover correspond to the positions of the first through hole, the second through hole and the third through hole on the heating block respectively;
The heating block is made of heat-conducting solid metal, and the outer part of the heating block is respectively connected with a urea suction pipe fast interface, a cooling liquid pipe fast interface and a urea return pipe fast interface;
The outer pipeline component comprises a urea return pipe, a urea suction pipe and a cooling liquid water pipe, wherein the urea return pipe is communicated with a urea return pipe quick connector, the urea suction pipe is communicated with a urea suction pipe quick connector, the cooling liquid water pipe is communicated with a cooling liquid pipe quick connector, and the urea return pipe and the urea suction pipe are closely attached to the outer surface of the cooling liquid water pipe;
one end of the urea suction pipe and one end of the urea return pipe, which are far away from the heating block, are provided with urea pump quick connectors, and the urea pump quick connectors are made of heat-conducting solid metal;
The inner pipeline assembly comprises a urea suction inner pipe, a urea return inner pipe and a spiral heating pipe, wherein the urea suction inner pipe is communicated with the urea suction pipe through a first hole and a first through hole, the urea return inner pipe is communicated with the urea return pipe through a third hole and a third through hole, one end of the spiral heating pipe is communicated with the cooling liquid water pipe through a second hole and a second through hole, and the other end of the spiral heating pipe is communicated with the water valve hole;
and a water outlet is formed in one end, far away from the end cover, of the urea return inner pipe, and is attached to the surface of the spiral heating pipe.
Preferably, urea pump quick-operation joint outside is equipped with urea pump quick-operation joint buckle.
Preferably, the urea return inner pipe is communicated with the third hole through a connecting pipe.
Preferably, the fastening piece is arranged below the end cover, and the fastening piece is provided with four first holes, second holes, third holes and water valve holes which are respectively connected to the bottom of the end cover in a threaded mode.
Preferably, the end cover is connected with a sensor through a sensor hole, and the end cover is connected with a water valve through a water valve hole.
Preferably, a filtering port is arranged on the right upper side of the box body.
Preferably, the bottom of the box body is provided with a liquid outlet.
Preferably, the heating block is embedded above the end cover.
Preferably, the heating block is made of stainless steel metal.
Preferably, a rubber gasket is arranged on the outer surface below the end cover.
The urea box assembly has the beneficial effects that urea in the urea box can be heated through cooling liquid water, the heating block is made of heat-conducting solid metal, the heat conduction and freezing prevention are realized, the urea returning pipe and the urea absorbing pipe are in close contact with the cooling liquid water pipe to conduct heat, the external pipeline assembly is prevented from being frozen, the water outlet of the urea returning inner pipe is attached to the surface of the spiral heating pipe, so that the returned urea flows to the bottom of the urea box along the heating pipe, the urea absorbing inner pipe can absorb enough urea conveniently under the condition that the urea is not completely frozen, and the urea pump quick connectors on the urea absorbing pipe and the urea returning pipe are made of heat-conducting solid metal, so that the urea is prevented from being frozen in the pipeline before entering the pump, and the urea box assembly has a better heat conducting function.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of a urea solution heating cycle;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the inner tube of the urea return tube;
FIG. 4 is a schematic illustration of the end cap and innerduct assembly construction;
FIG. 5 is a top view of the end cap;
FIG. 6 is a top view of a heating block;
FIG. 7 is a schematic diagram of a heating block structure;
fig. 8 is a schematic diagram of the structure of a urea pump quick connector.
In the drawing, a 1-urea absorption pipe quick connector, a 2-cooling liquid pipe quick connector, a 3-urea return pipe quick connector, a 4-end cover, a 5-urea absorption inner pipe, a 6-urea return inner pipe, a 7-water valve hole, an 8-spiral heating pipe, a 9-urea return pipe, a 10-urea absorption pipe, a 11-cooling liquid water pipe, a 12-fastening piece, a 13-heating block, a 14-water outlet, a 15-connecting pipe, a 16-rubber gasket, a 17-sensor hole, a 18-water valve, a 19-sensor, a 20-filtering hole, a 21-liquid discharge hole, a 22-box body, a 23-urea pump quick connector, a 24-urea pump quick connector buckle, a 1-1-first through hole, a 2-1-second through hole, a 3-1-third through hole, a 4-1-first hole, a 4-2-second hole and a 4-3-third hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
1-8, The urea tank assembly is characterized by comprising a tank body 22, an end cover 4, a heating block 13, an outer pipeline assembly and an inner pipeline assembly;
The top of the box body 22 is provided with an end cover 4;
the end cover 4 is provided with a first hole 4-1, a second hole 4-2, a third hole 4-3, a water valve hole 7 and a sensor hole 17;
A heating block 13 is arranged above the end cover 4, a first through hole 1-1, a second through hole 2-1 and a third through hole 3-1 are formed in the lower end of the heating block 13, and the positions of the first hole 4-1, the second hole 4-2 and the third hole 4-3 on the end cover correspond to the positions of the first through hole 1-1, the second through hole 2-1 and the third through hole 3-1 on the heating block respectively;
The heating block 13 is made of heat-conducting solid metal, and a urea suction pipe quick interface 1, a cooling liquid pipe quick interface 2 and a urea return pipe quick interface 3 are respectively connected to the outside of the heating block 13;
the outer pipeline assembly comprises a urea return pipe 9, a urea suction pipe 10 and a cooling liquid water pipe 11, wherein the urea return pipe 9 is communicated with the urea return pipe quick connector 3, the urea suction pipe 10 is communicated with the urea suction pipe quick connector 1, the cooling liquid water pipe 11 is communicated with the cooling liquid pipe quick connector 2, and the urea return pipe 9 and the urea suction pipe 10 are tightly attached to the outer surface of the cooling liquid water pipe 11;
the urea pump quick connector 23 is arranged at one end of the urea suction pipe 10 and the urea return pipe 9 far away from the heating block 13, and the urea pump quick connector 23 is made of heat-conducting solid metal;
the inner pipeline assembly comprises a urea suction inner pipe 5, a urea return inner pipe 6 and a spiral heating pipe 8, wherein the urea suction inner pipe 5 is communicated with a urea suction pipe 10 through a first hole 4-1 and a first through hole 1-1, the urea return inner pipe 6 is communicated with a urea return pipe 9 through a third hole 4-3 and a third through hole 3-1, one end of the spiral heating pipe 8 is communicated with a cooling liquid water pipe 11 through a second hole 4-2 and a second through hole 2-1, and the other end of the spiral heating pipe is communicated with a water valve hole 7;
the end of the urea return inner tube 6 far away from the end cover 4 is provided with a water outlet 14, and the water outlet 14 is attached to the surface of the spiral heating tube 8.
Specifically, the urea pump quick connector 23 is externally provided with a urea pump quick connector buckle 24, and the urea return inner pipe 6 is communicated with the third hole 4-3 through the connecting pipe 15.
Specifically, the fastener 12 is arranged below the end cover 4, and the fastener 12 is provided with four first holes 4-1, second holes 4-2, third holes 4-3 and water valve holes 7 which are respectively connected to the bottom of the end cover 4 in a threaded manner.
Specifically, the end cover 4 is connected with a sensor 19 through a sensor hole 17, and the end cover is connected with a water valve 18 through a water valve hole 7.
Specifically, a filtering port 20 is arranged on the upper right side of the box 22, and a liquid discharge port 21 is arranged at the bottom of the box 22.
Specifically, the heating block 13 is embedded above the end cover 4. The heating block 13 is made of stainless steel metal.
Specifically, the lower outer surface of the end cap 4 is provided with a rubber gasket 16.
The working principle of the device is that the cooling liquid water of the motor vehicle firstly enters the spiral heating pipe 8 through the water valve hole 7 on the end cover 4 to defrost and heat the urea liquid in the urea box 22, then contacts the urea liquid in a larger area through the spiral part of the spiral heating pipe 8, and then flows out after passing through the second hole 4-2 of the end cover 4 and the second through hole 2-1 of the heating block 13, flows out from the cooling liquid water pipe 11 through the cooling liquid pipe fast interface 2, and completes the heating cycle.
After the thawed urea liquid is absorbed by the urea absorbing inner pipe 5, the urea liquid flows out through the heating block 13 and the urea absorbing pipe 10 to enter the urea pump, the urea absorbing pipe 10 is tightly contacted with the cooling liquid water pipe 11 to conduct heat, the urea liquid in the urea absorbing pipe 10 is prevented from being frozen, the redundant urea liquid in the urea pump flows into the connecting pipe 15 and the urea returning inner pipe 6 through the urea returning pipe 9 tightly contacted with the cooling liquid water pipe 11, and then flows into the bottom of the urea box from the water outlet 14 attached to the surface of the spiral heating pipe 8, so that the urea absorbing inner pipe 5 can absorb enough urea liquid under the condition that the urea liquid is not completely thawed.
According to the urea box assembly, cooling water directly enters the spiral heating pipe 8 in the urea box through the water valve hole 7, heat can be effectively and fully transferred, urea liquid in the urea box can be quickly thawed, the cooling water passes through the inside of the heating block 13 and is connected with an external urea pipeline, the temperature of the external urea pipeline is maintained, the external urea pipeline is prevented from being frozen, and the urea suction pipe can also suck enough urea liquid for circulation.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854415.5A CN113494340B (en) | 2021-07-28 | 2021-07-28 | Urea tank assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854415.5A CN113494340B (en) | 2021-07-28 | 2021-07-28 | Urea tank assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113494340A CN113494340A (en) | 2021-10-12 |
| CN113494340B true CN113494340B (en) | 2025-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110854415.5A Active CN113494340B (en) | 2021-07-28 | 2021-07-28 | Urea tank assembly |
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| CN (1) | CN113494340B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215170288U (en) * | 2021-07-28 | 2021-12-14 | 联创瑞恩科技(无锡)有限公司 | A urea tank assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202417665U (en) * | 2012-02-10 | 2012-09-05 | 中国重汽集团济南动力有限公司 | Tail gas after-treatment system for diesel engine |
| JP6373291B2 (en) * | 2016-03-02 | 2018-08-15 | 日立建機株式会社 | Construction machinery |
| CN207363744U (en) * | 2017-02-08 | 2018-05-15 | 天纳克（苏州）排放系统有限公司 | Heating and filtering component and after-treatment system component |
| CN108060954A (en) * | 2017-12-06 | 2018-05-22 | 潍柴动力股份有限公司 | A kind of urea liquid level sensor |
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2021
- 2021-07-28 CN CN202110854415.5A patent/CN113494340B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215170288U (en) * | 2021-07-28 | 2021-12-14 | 联创瑞恩科技(无锡)有限公司 | A urea tank assembly |
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| CN113494340A (en) | 2021-10-12 |
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