Technical Field
The utility model relates to a multi-tank integral full heat SSCR module and a heat removal device, is mainly applied to the SCR of the car exhaust gas post-processing industry.
Background Art
The automobile exhaust emissions can cause serious pollution of the atmosphere, the main pollutants of hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx) and particulate matter (PM). Since the 20 century 70 age people began efforts to control automobile exhaust emissions since, has developed increasingly stringent emission regulations. For the implementation of the "people's Republic of China of atmospheric pollution", strict control on motor vehicle pollution, the full implementation of the "light automobile emission limit value and the measurement method (China's five stage)" (GB18352.5 - 2013) and "vehicle compression ignition, gas fuel spark-ignition engine and automobile exhaust pollutant emission limits and measuring method (China III, IV, V phase)" (GB17691 - 2005) in the standard requirements of the 5th stage discharge, from National self-1 January 2017, all manufacturing, import, sales and registration of the light petrol vehicles, heavy-duty diesel vehicles (passenger car and bus, sanitation, postal use), shall be conforms to the five standard requirements. Therefore, the automobile exhaust gas purifying technology provides greater challenges, higher requirements.
SCR (Selective Catalytic Reduction) catalytic reduction technology is the traditional post-processing technology. By adopting the liquid urea of the traditional SCR technology is essentially utilize urea decomposes under the high temperature ammonia, the ammonia as a reducing agent of NOx in the engine exhaust gas in the catalyst and the temperature of the integrated under the action of the reaction, under the conditions of an ideal to produce non-toxic N2 and H2O, thereby achieving the purpose of purification. However, the traditional SCR system for liquid urea reducing agent facing the freezing in winter and heat insulation thawing problems, urea and the exhaust gas temperature under the condition of relatively high, it is easy to form a condensate of hard, further stopping urea reducing agent nozzle or piled in the exhaust pipe, cause the engine exhaust back pressure rises, to reduce the vehicle fuel economy.
Therefore, how to obtain low cost and high performance of the NH3 reducing agent supply device is particularly important. The use of metal chloride with ammonia to form coordination compounds of this characteristic, the ammonia gas is fixed down, use of the metal chloride is mainly alkaline earth metal chloride, strontium chloride, calcium chloride, magnesium chloride, and must be auxiliary additive component. Ammonia synthesis of compound material formed as a vehicle-mounted reducing agent ammonia an ammonia, when in use by heating to achieve desorption release the ammonia gas, the ammonia gas with the metal chloride to adsorb and desorb a is a reversible process.
Because the ammonia desorption of heat absorption process is, therefore a need to increase the ammonia storage device in the heat source, in the Patent number CN 102733913 B (double-stage waste heat mode [...] ammonia system) in discloses a backflow of the coolant of the engine waste heat to heat the active chu anhua compound, release leaves the ammonia of the after-treatment system. The Patent number CN 103470347 A (used for producing the ammonia of the equipment) with the introduction of the ammonia generating device, wherein the 2nd 1st heating device and heating device are respectively installed in the main memory and the secondary memory internal and independent operation. The Patent number US2012/0045379 A1 (a uses the vacuum pump from the solid ammonia in the material storage and supply ammonia gas), introduced the method of storing and delivering ammonia, ammonia material for the heating means of the built-in electric heating or external microwave heating or infrared heating. The Patent number CN 104234796 A (in particular for a motor vehicle exhaust system with optimized filling time of ammonia saves the tube) introduced with ammonia derives the channel built-in heating or enclosed heating of the ammonia storage tube.
Content of the invention
The purpose of the utility model is to provide a multi-tank integral full heat SSCR module and a heat removal device, it can solve the northern winter [...] long time for pressurization and traditional liquid SCR system continues spreads the mileage the question in section, at the same time the total weight of the device is reduced, simplifying the assembly and disassembly.
The technical proposal of the utility model is realized in the way: a multi-tank integral full heat SSCR module and a heat removal device, by the [...], integral full heat SSCR module taking heat from the casing of the device, the air inlet of the heating device the exhaust gas, from the heat exhaust gas outlet, the stationary partition plate, the ammonia gas outlet pipe, angle valve, the exhaust gas post-processor, the tail gas post-processor outlet, solid ammonia material, characterized in that two [...] arranged in the entire hot -like SSCR module taking heat from the casing of the device in the middle of the, two [...] are arranged up and down, the middle position of the two ammonia storage tank through the fixed baffle support, the two ends of the [...] through an integral full heat SSCR module heating device both sides of outer end plate sealing, ammonia gas outlet pipe in parallel the two [...], ammonia gas and a gas outlet opening in the outlet end of the full heating SSCR module taking heat from the top surface of the outer housing of the device, the outlet end of the ammonia gas outlet pipe is connected with the angle valve, from the heat of the exhaust gas outlet opening throughout the heating SSCR module from the heat of the housing of the left upper corner of the, a heat removal device exhaust inlet opening in the whole heating SSCR module from the heat of the lower right corner of the outer shell, and a heat removal device exhaust air inlet horn-shaped, exhaust gas post-processor of the air outlet of the exhaust gas after-processor heat removal device exhaust gas inlet; an ammonia storage material is filled in the ammonia storage tank.
The [...] is cylindrical, has 5L - 40L of the volume, the tank wall thickness is 2 mm - 4 mm, and its material is by ammonia gas corrosion resistance of the aluminum alloy or made of stainless steel, integral full heat SSCR module taking heat from the outer housing of the device can be arranged in 2 - 5 a [...], integral full heat SSCR module from the heat in the outer cover of the size of the plurality of [...] can be equal can also be unequal.
The integral full heat SSCR module taking heat from the casing of the device is a cuboid structure, its material may be stainless steel or aluminum alloy, with the two sides of the [...] welded together end plate has a thickness of 2.5 mm - 4 mm, the thickness of the shell to the other side of the 1.5 mm - 2.5 mm; integral full heat SSCR module taking heat from the outer housing of the device between the outer wall of the [...] minimum distance is 20 mm - 50 mm.
The fixed baffle material can be of stainless steel or aluminum alloy, the thickness is 2.5 mm - 3 mm, fixed on the baffle [...] with fixed corresponding to the number of fixing holes, and fixed baffle are evenly distributed on the vent hole, the vent aperture is 5 mm - 10 mm, and fixed baffle upper vent hole for a total area of from the heat of the exhaust gas inlet area 3 - 4 times.
The heat removal device along the exhaust gas flow direction of the exhaust gas inlet pipe diameter is reduced gradually, large diameter is 140 - 160 mm, the small diameter is 70 - 90 mm, length of 80 - 100 mm; the mounting for the exhaust gas of the exhaust gas after-on the processor after the processor outlet, along the direction of the air flow and the diameter of the exhaust gas is reduced gradually, large diameter for the 138 - 158 mm and, small diameter is 68 - 88 mm and, length is 80 - 100 mm.
The ammonia gas outlet tube is made of stainless steel, the inner diameter of the tube is 0.5 cm - 1.5 cm, wall thickness is 2 mm - 3 mm.
The use of an ammonia synthesis material can be strontium chloride or ammonia synthesis of magnesium chloride or calcium chloride or ammonia synthesis with the NH3 chloride to form a complex.
The positive effects of the utility model is its simple structure, easily assembled and disassembled. The diameter of the pipe is not inserted, the streamlining of the pipeline connecting component, at the same time from the heat of the end plate of the shell as [...] head, the whole device and environment obviously, device to reduce the total weight of 4 kg - 10 kg. The engine tail gas heating ammonia material, makes full use of the engine fuel to generate energy, and improving the thermal efficiency of the engine, saving fuel consumption. And chu ammonia tank is in tail gas full-enclosed heating environment, [...] under low temperature conditions conducive to quickly reach the working pressure. At the same time, in the utility model in the device of the NH3 reducing agent content of the traditional liquid urea reducing agent is several times, therefore, the use of the device of the vehicle continues spreads the mileage can be improved by 5 - 7 times.
Description of drawings
Figure 1 is the side chart of of of the present utility model.
Figure 2 is the positive chart of of of the present utility model.
Figure 3 is the fixed baffle structure chart of the of the present utility model.
Figure 4 is the arrangement of the structure chart of the three chu of ammonia pot of the present utility model.
Figure 5 is the arrangement chart of [...] of four of the present utility model.
Figure 6 is the arrangement chart of five chu anguan of of of the present utility model.
Figure 7 is the positive arrangement chart of five chu anguan of of of the present utility model.
Mode of execution
The Figure below to further illustrate the utility model as: as shown in Figure 1-3, a multi-tank integral full heat SSCR module and a heat removal device, by the [...] 1, integral full heat SSCR module taking heat from the casing of the device 2, the air inlet of the heating device the exhaust gas 3, heating device exhaust gas outlet 4, the stationary partition 5, the ammonia gas outlet pipe 6, angle valve 7, the exhaust gas post-processor 8, the outlet of the exhaust gas after the processor 9, solid ammonia material 10 a, characterized in that two [...] 1 is arranged in the entire hot -like SSCR module taking heat from the casing of the device 2 in the middle of the, two [...] 1 are arranged up and down, two [...] 1 through the middle position of the fixed baffle 5 support, [...] 1 the two ends of the through an integral full heat SSCR module taking heat from the casing of the device 2 two side end plate sealing, ammonia gas outlet pipe 6 the two [...] 1 connected in parallel, the ammonia gas outlet pipe 6 opening in the outlet end of the whole heating SSCR module taking heat from the casing of the device 2 the top surface, the ammonia gas outlet pipe 6 connected to the canted valve outlet end of 7, from the heat of the exhaust-gas outlet 4 open throughout the heating SSCR module taking heat from the casing of the device 2 of the upper-left, and a heat removal device exhaust air inlet 3 is opened in the full heating SSCR module taking heat from the casing of the device 2 of the lower right corner, and a heat removal device end gas inlet 3 to the trumpet shape, exhaust gas after the processor 8 of the outlet of the exhaust gas after the processor 9 with the heat removal device end gas inlet 3 butt; an ammonia material 10 is filled in the [...] 1 in.
As shown in Figure 4-7, the [...] 1 is cylindrical, has 5L - 40L of the volume, the tank wall thickness is 2 mm - 4 mm, and its material is by ammonia gas corrosion resistance of the aluminum alloy or made of stainless steel, integral full heat SSCR module taking heat from the casing of the device 2 can be arranged in 2 - 5 a [...] 1, integral full heat SSCR module taking heat from the casing of the device 2 a plurality of inner [...] 1 can be equal to the size of the can also be unequal.
The integral full heat SSCR module taking heat from the casing of the device 2 is a cuboid structure, its material may be stainless steel or aluminum alloy, with the two sides of the [...] welded together end plate has a thickness of 2.5 mm - 4 mm, the thickness of the shell to the other side of the 1.5 mm - 2.5 mm; integral full heat SSCR module taking heat from the casing of the device 2 with the [...] 1 between the outer wall of the minimum distance is 20 mm - 50 mm.
The fixed baffle plate 5 can be made of stainless steel or aluminum alloy, the thickness is 2.5 mm - 3 mm, the stationary partition 5 is left on the [...] fixed corresponding to the number of fixing holes 5 - 1, the stationary partition 5 are evenly distributed on the vent hole 5 - 2, the vent hole 5 - 2 with a pore size of 5 mm - 10 mm, the stationary partition 5 upper vent hole for a total area of heating device exhaust air inlet 3 and the area of the 3 - 4 times.
The heat absorbing device of the exhaust gas inlet 3 along the exhaust direction of the air flow is gradually reduced diameter, large diameter is 140 - 160 mm, the small diameter is 70 - 90 mm, length of 80 - 100 mm; the mounting for the exhaust gas post-processor 8 on the outlet of the exhaust gas after the processor 9, along the diameter of the exhaust gas flow direction is reduced gradually, large diameter for the 138 - 158 mm and, small diameter is 68 - 88 mm and, length is 80 - 100 mm.
The ammonia gas outlet pipe 6 is made of stainless steel, the inner diameter of the tube is 0.5 cm - 1.5 cm, wall thickness is 2 mm - 3 mm.
The use of an ammonia synthesis material can be strontium chloride or ammonia synthesis of magnesium chloride or calcium chloride or ammonia synthesis with the NH3 chloride to form a complex.
According to the needs two [...] 1 is arranged in the entire hot -like SSCR module taking heat from the casing of the device 2 when, two [...] 1 can be the same as the size of the, can also be one large and one small, wheat koji is the volume of the volume of the tentacle and 3 - 4 times. Heating device for the preparation of the whole heating sequence is SSCR module taking heat from the casing of the device 2 at one side of the end plate and the two chu anguan tube body welding together, and then the end plate and the heat removal device casing welding together; and then the fixed partition 5 into the [...] 1, and arranged in the [...] 1 the axial middle part, and it is connected to the entire hot -like SSCR module [...] and taking heat from the casing of the device 2 the contact position of the welding is complete; then install the two [...] ammonia gas outlet pipe 6, the ammonia gas and the air interface are both located on the top side of the [...], the two domestic remittance to the top of the pulled casing and an air outlet pipe, and from the entire hot -like SSCR module taking heat from the casing of the device 2 from the reservation on the hole, and then installed in the pipe angle valve 7, for sealing the ammonia outlet pipe 6 and the whole heating SSCR module taking heat from the casing of the device 2 the contact part of the seal; and then to the [...] 1 cylinder filled with 40% tank volume of ammonia material 10; finally the heat removal device housing at the other side of the end plate and the [...] 1 and full heating SSCR module taking heat from the casing of the device 2 welding together.
For the convenience of assembly and disassembly, the tail gas post-processor outlet 9 and a heat removal device with the exhaust gas inlet 3 by matching the size of the different diameters of the quick inserting pipe. Heating device installed only by moving the heat removal device, so that the exhaust gas inlet of the heat removal device 3 with the post-processor on the outlet of the exhaust gas after the processor 9 are inserted together, and a heat removal device can be fixed to the bracket on the frame of the vehicle, the process saves the mounting flange.
The use of engine exhaust gas to [...] 1 to enclosed heating, the exhaust air temperature usually in 150 °C -350 °C. From the exhaust gas after-processor 8 the tail gas discharged via the exhaust gas inlet of the heat removal device 3 into the full heating SSCR module taking heat from the casing of the device 2 in, flows through the [...] 1 and entire hot -like SSCR module taking heat from the casing of the device 2 in the area between, and from the exhaust gas outlet and a heat removal device 4 discharge, thereby realizing the exhaust gas to [...] of enclosed heating, storing the ammonia in the tank when the ammonia desorption temperature of material to reach the, release of ammonia by ammonia gas outlet pipe derived and enter the system of the next unit. Device when in normal use, angle valve is in the open state, when the device needs to be replaced when the ammonia gas in the exhaustion, angle valve closed.
The structure is suitable for 3 L displacement of light trucks, double-pot entire hot -like SSCR module and a heat removal device is installed on the rear side of the post-processors. According to the NH3 SCR post-processor to set up with demand [...] volume relationship between the mileage. For example, the double-tank total volume of 40 L of the storage tank 100% after sufficient ammonia, for 3 L SCR system of the engine, can be continuous driving 12000 - 15000 km. In the north -20 °C in winter conditions, a vehicle cold start when the normal working pressure conditions ammonia pot only 12 min.
As shown in Figure 4, according to needs three [...] 1 is arranged in the entire hot -like SSCR module taking heat from the casing of the device 2 into the inside of the, three [...] 1 can be the same as the size of the, can also be a major and two minor, wheat koji is the volume of the volume of the tentacle and 3 - 4 times. Heating device for the preparation of the whole heating sequence is SSCR module taking heat from the casing of the device 2 at one side of the end plate and the three [...] 1 welded to the cylinder body, and then the end plate and welded to the outer shell and a heat removal device;
As shown in Figure 5, according to need four [...] 1 is arranged in the entire hot -like SSCR module taking heat from the casing of the device 2 when the inside, the size of the four [...] can be the same, can also be a large and three small or two two small, wheat koji is the volume of the volume of the tentacle and 3 - 4 times. Heating device for the preparation of the whole heating sequence is SSCR module taking heat from the casing of the device 2 at one side of the end plate and the four chu anguan tube body welding together, and then the end plate and welded to the outer shell and a heat removal device;
As shown in Figure 6, 7 is shown, according to the needs five [...] 1 is arranged in the entire hot -like SSCR module taking heat from the casing of the device 2 when the inside, the size of the five [...] can be the same, can also be a large four little or two and three small, wheat koji is the volume of the volume of the tentacle and 3 - 4 times. Heating device for the preparation of the whole heating sequence is SSCR module taking heat from the casing of the device 2 at one side of the end plate and the five chu anguan tube body welding together, and then the end plate and welded to the outer shell and a heat removal device.
Heat facility of getting of integral hot SSCR module of making perfect of multiple tank
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