CN207243484U - A kind of ammonia generation device with double crescent or half moon type electric heaters - Google Patents
A kind of ammonia generation device with double crescent or half moon type electric heaters Download PDFInfo
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- CN207243484U CN207243484U CN201720757813.4U CN201720757813U CN207243484U CN 207243484 U CN207243484 U CN 207243484U CN 201720757813 U CN201720757813 U CN 201720757813U CN 207243484 U CN207243484 U CN 207243484U
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- ammonia
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- ammonia storage
- half moon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
It the utility model is related to a kind of ammonia generation device with double crescent or half moon type electric heaters, it is characterised in that：The ammonia storage tank both ends of cylinder are spheroid shape end socket, filling ammonia-storing material inside ammonia storage tank, ammonia air outlet pipe is connected to the center at the top of ammonia storage tank, and ammonia air outlet pipe upper end port is connected with angle valve, and degree sensor, pressure sensor and safety valve are arranged in the top of ammonia storage tank；Tank body buffer body top surface is reserved with two arc-shaped grooves, aluminum alloy frame is enclosed with the outside of tank body buffer body, two ammonia storage tanks are placed in two grooves of tank body buffer body, ammonia tank fixes cover plate lid in the top of two ammonia storage tanks, the both sides that ammonia tank fixes cover board are spacing to ammonia storage tank clamping with aluminum alloy frame fixation by lock, and two crescent or half moon type electric heaters are clipped between the groove of ammonia storage tank and tank body buffer body.It simplifies the structure of ammonia generation device electric heater, reduces power consumption, improves the thermal efficiency of ammonia generation device.
Description
Technical field
A kind of ammonia generation device with double crescent or half moon type electric heaters is the utility model is related to, is mainly used for vehicle exhaust
SCR post processing industry.
Background technology
Motor vehicle exhaust emission can cause serious atmosphere pollution, its major pollutants has hydrocarbon（HC）, one oxidation
Carbon（CO）, nitrogen oxides（NOx）And particulate matter（PM）.Make great efforts since the 1970s people control motor vehicle exhaust emission with
Come, formulated increasingly stringenter Abgasgesetz.To implement《The Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution》, stringent control machine
Motor-car pollutes, and implements in full《Light-duty vehicle pollutant emission limit and measuring method（Chinese five stages）》（GB18352.5-
2013）With《Automobile-used compression-ignited, gaseous fuel spark-ignition engine and automobile exhaust pollutant discharge limit value and measuring method（In
III, IV, V stage of state）》（GB17691-2005）In the 5th stage emission standard requirement, the whole nation from 1 day January in 2017, institute
There are Light-Duty Gasoline Vehicle, the heavy-duty diesel vehicle of manufacture, import, sale and registration（Car and public transport, environmental sanitation, postal purposes）,
State's five standards requirement must be met.Therefore, automobile proposes tail gas clean-up technology the challenge of bigger, the requirement of higher.
SCR（Selective Catalytic Reduction）Catalyzed conversion reduction technique is traditional post-processing technology.
This using traditional SCR technology essence of liquid area is to decomposite ammonia at high temperature using urea, the ammonia as reducing agent
Reacted with the NOx in engine exhaust under the comprehensive function of catalyst and temperature, nontoxic N2 is generated under preferable operating mode
And H2O, so as to achieve the purpose that purification.However, the liquid area reducing agent used in traditional SCR system face freezed in winter and
The problem of insulation is thawed, and under conditions of urea delivery temperature is higher, the difficult condensation product decomposed is easily formed, and then block urea
Reductant nozzle is piled up in exhaust pipe, causes engine exhaust back pressure to raise, and reduces VE Vehicle Economy.
Therefore, it is particularly important that how obtaining inexpensive and high performance NH3 reducer feeding devices.Utilize metal chloride
With this characteristic of ammonia formation complex, ammonia is fixed, and the metal chloride used is mainly alkaline-earth metal chlorine
Compound, strontium chloride, calcium chloride, magnesium chloride, and necessary auxiliary addO-on therapy.The ammino compound ammonia-storing material conduct of formation
Onboard reductant ammonia source, the desorption for realizing ammonia by heating when in use discharge, the absorption of ammonia and metal chloride
It is a reversible process with desorption.
Since the desorption of ammonia is endothermic process, need to increase heat source in ammonia storage device, in Patent No. CN
102733913 B（The system of two-stage afterheat manner storing and supplying ammonia）In disclose more than a kind of reflux coolant using engine
Heat carrys out heating of Activated storage ammoniate, discharges the after-treatment system of ammonia.103470347 A of Patent No. CN（For producing
The equipment of ammonia）A kind of ammonia occurrence of equipment is described, wherein first heater and secondary heating mechanism is separately mounted to primary storage
Device and secondary memory inside and independent operation.Patent No. US2012/0045379 A1（One kind is stored up using vacuum pump from solid
The method for being stored in ammonia material and supplying ammonia）, the method that describes storage and delivering ammonia, the mode of heating of ammonia-storing material is interior
Put electrical heating or the heating of external microwave or infrared heating.104234796 A of Patent No. CN（Particularly for motor vehicle exhaust
The ammonia storage barrel of the filling time with optimization of system）Describe a kind of built-in heated type or outer with ammonia export passage
The ammonia storage barrel of packet mode heating.
The content of the invention
The purpose of this utility model is to provide a kind of ammonia generation device with double crescent or half moon type electric heaters, it simplifies ammonia
The structure of gas generation device electric heater, reduces power consumption, improves the thermal efficiency of ammonia generation device.
What the technical solution of the utility model was realized in：A kind of ammonia with double crescent or half moon type electric heaters produces dress
Put, by ammonia storage tank, ammonia tank fix cover board, crescent or half moon type electric heater, aluminum alloy frame, lock, tank body buffer body, ammonia-storing material,
Ammonia air outlet pipe, angle valve, temperature sensor, pressure sensor, safety valve composition, it is characterised in that：The ammonia storage tank two of cylinder
Hold and be connected to the center at the top of ammonia storage tank, ammonia for spheroid shape end socket, ammonia storage tank inside filling ammonia-storing material, ammonia air outlet pipe
Gas air outlet pipe upper end port is connected with angle valve, and degree sensor, pressure sensor and safety valve are arranged in the top of ammonia storage tank；Tank body
Buffer body top surface is reserved with two arc-shaped grooves, and aluminum alloy frame, two ammonia storage tanks are enclosed with the outside of tank body buffer body
It is placed in two grooves of tank body buffer body, ammonia tank fixes cover plate lid and fixes cover board in the top of two ammonia storage tanks, ammonia tank
Both sides are spacing to ammonia storage tank clamping with aluminum alloy frame fixation by lock, and two crescent or half moon type electric heaters are clipped in ammonia storage tank and tank
Between the groove of body buffer body.
The ammonia storage tank has the volume of 5L ~ 40L, and tank wall thickness is 2mm ~ 4mm, its case material is by resistant to ammonia gas corrosion
Aluminium alloy or stainless steel be made.
The inside radius of the crescent or half moon type electric heater circular arc is slightly larger than ammonia storage tank radius 2mm ~ 4mm, and heater thickness is
4mm ~ 10mm, heater axial length is suitable with ammonia storage tank axial length, is justified according to the demand crescent or half moon type heater of actual use
The corresponding angle of arc can be 90 ° ~ 180 °, and the power of electric heater can be 200W ~ 600W;Can be that flexible silica gel adds
Hot device, flexibility PI（Polyimides）Heating film, stainless steel heater.
Two grooves set on the tank body buffer body, the radius of each groove slightly larger than heater outer radius 2mm ~
4mm, axial length is identical with ammonia storage tank length, and the angle corresponding to groove arc is 180 °, i.e., ammonia storage tank, which is lain, is put in groove
When interior, the volume for having half is wrapped up by buffer body, and tank body buffer body material is phenol formaldehyde foam.
The ammonia tank, which fixes cover board, has two circular arcs, and the angle corresponding to each circular arc is 180 °, and radius is slightly larger than
Ammonia storage tank radius 2mm ~ 3mm, cover sheet thickness are 4mm ~ 6mm, and fixed cover board both ends are provided with 4 or 6 locks, ammonia tank fixed cover
Plate matter is fire resistant resin material.
The ammonia-storing material can be ammino strontium chloride, ammino calcium chloride, ammoniation magnesium chloride or ammino lithium chloride.
The good effect of the utility model is that its is simple in structure, for ease of maintenaince with the dismounting of ammonia storage tank.Crescent or half moon type heater
Cleverly combined with aluminum alloy tank body, thermal energy can be utilized to greatest extent, prevent dissipation of the heat to surrounding environment, have compared with
The high thermal efficiency.After ammonia tank is heated at ambient temperature, ammonia pressure rose to operating pressure less than 5 minutes in tank, compared to biography
System liquid SCR system, continuous mileage of speeding can increase by 4 ~ 6 times.
Brief description of the drawings
Fig. 1 is the ammonia storage tank structure chart of the utility model.
Fig. 2 is the sectional structure chart of the utility model.
Fig. 3 is the disassemblying structure figure of the utility model.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：As shown in Figs. 1-3, it is a kind of that there are double crescent or half moon type electricity to add
The ammonia generation device of hot device, by ammonia storage tank 1, ammonia tank fix cover board 2, crescent or half moon type electric heater 3, aluminum alloy frame 4, lock 5,
Tank body buffer body 6, ammonia-storing material 7, ammonia air outlet pipe 8, angle valve 9, temperature sensor 10, pressure sensor 11,12 groups of safety valve
Into, it is characterised in that：1 both ends of ammonia storage tank of cylinder are spheroid shape end socket, and the inside of ammonia storage tank 1 filling ammonia-storing material 7, ammonia goes out
Tracheae 8 is connected to the center at the top of ammonia storage tank 1, and 8 upper end port of ammonia air outlet pipe is connected with angle valve 9, degree sensor 10, pressure
Force snesor 11 and safety valve 12 are arranged in the top of ammonia storage tank 1；6 top surface of tank body buffer body be reserved with two it is arc-shaped recessed
Groove, the outside of tank body buffer body 6 are enclosed with aluminum alloy frame 4, and two ammonia storage tanks 1 are placed on two grooves of tank body buffer body 6
In, ammonia tank is fixed cover board 2 and is covered in the top of two ammonia storage tanks 1, and the both sides that ammonia tank fixes cover board 2 pass through lock 5 and aluminum alloy frame
Frame 4 fix ammonia storage tank 1 is clamped it is spacing, two crescent or half moon type electric heaters 3 be clipped in ammonia storage tank 1 and tank body buffer body 6 groove it
Between.
The ammonia storage tank 1 has the volume of 5L ~ 40L, and tank wall thickness is 2mm ~ 4mm, its case material is rotten by resistance to ammonia
The aluminium alloy or stainless steel of erosion are made.
The inside radius of 3 circular arc of crescent or half moon type electric heater is slightly larger than ammonia storage tank radius 2mm ~ 4mm, and heater thickness is
4mm ~ 10mm, heater axial length is suitable with ammonia storage tank axial length, is justified according to the demand crescent or half moon type heater of actual use
The corresponding angle of arc can be 90 ° ~ 180 °, and the power of electric heater can be 200W ~ 600W;Can be that flexible silica gel adds
Hot device, flexibility PI（Polyimides）Heating film, stainless steel heater.
Two grooves set on the tank body buffer body 6, the radius of each groove are slightly larger than heater outer radius 2mm
~ 4mm, axial length is identical with 1 length of ammonia storage tank, and the angle corresponding to groove arc be 180 °, i.e., ammonia storage tank lie be put in it is recessed
When in groove, the volume for having half is wrapped up by buffer body, and 6 material of tank body buffer body is phenol formaldehyde foam.
The ammonia tank, which fixes cover board 2, has two circular arcs, and the angle corresponding to each circular arc is 180 °, and radius is slightly larger than
Ammonia storage tank radius 2mm ~ 3mm, cover sheet thickness are 4mm ~ 6mm, and fixed cover board both ends are provided with 4 or 6 locks, ammonia tank fixed cover
2 material of plate is fire resistant resin material.
The ammonia-storing material can be ammino strontium chloride, ammino calcium chloride, ammoniation magnesium chloride or ammino lithium chloride.
The ammonia tank that fast demountable is provided with the ammonia storage device first half fixes cover board, and fixed cover board is closed by lock and aluminium
Golden frame interlocking.Filled solid ammonia-storing material inside ammonia storage tank, loading are the 40% of tank body volume.Ammonia storage tank top is connected with
Temperature sensor, pressure sensor, safety valve, ammonia air outlet pipe, have angle valve on outlet pipe.Wherein, pressure sensor senses
End probes into tank interior but does not contact solid ammonia storage material, in ammonia storage tank temperature sensor senses end insertion solid ammonia storage material.
Electric energy is provided for crescent or half moon type heater, heater is crescent or half moon type in the section of radial direction, crescent or half moon using vehicle power supply
The inside radius of type electric heater circular arc is slightly larger than radius 2mm ~ 4mm of ammonia storage tank, in order to be bonded with ammonia storage tank closely, raising pair
The efficiency of heating surface of tank body, the angle corresponding to heater circular arc is 90 °, and axial dimension is suitable with tank body size.Heater is resistance to
High temperature and with the silica gel heating device or polyimides heater of certain elasticity, is bonded beneficial to tank body.On tank body buffer body
Two grooves are provided with, the radius of groove is slightly larger than heater outer radius 2mm ~ 4mm, and length is suitable with ammonia storage tank length, and recessed
Angle corresponding to groove circular arc is 180 °.I.e. ammonia storage tank is lain when being put in groove, and the volume for having half is wrapped up by buffer body, its
Material be with low thermal conductivity, density is low, heat safe phenol formaldehyde foam.For convenience of ammonia tank fast assembling-disassembling and prevent heater
It is caught in the rain, the ammonia storage device first half, which is provided with ammonia tank made of fire resistant resin material, fixes cover board, and ammonia tank is fixed on cover board
With two identical circular arcs, the angle corresponding to circular arc is 180 °, and radius is slightly larger than ammonia storage tank radius 2mm ~ 3mm, beneficial to lid
Being bonded between plate and ammonia tank, cover sheet thickness are 4mm ~ 6mm, and fixed cover board both ends are provided with 6 locks altogether, facilitate ammonia storage tank
Remove and install.
In crescent or half moon type heater assembly, the power of each heater is 400W, and 80 are can reach in 5min after car is played
DEG C, the solid ammonia storage material in tank body is quickly reached and release ammonia temperature.When the temperature that temperature sensor is detected is high
When 150 DEG C, the output power of heater can be reduced under the control of car running computer, makes temperature keep stablizing.Car running computer can
The pressure in real time monitoring signals tank exported according to pressure sensor, ensures the security of whole device, while on tank body
Portion is also equipped with safety valve, and in the case where pressure sensor fails, tank body pressure is constantly soaring when being higher than 9bar, and safety valve opens
The pressure release of the trend external world, and then ensure the safety of ammonia storage tank.
This structure is suitable for automobile chassis the heavy truck of remaining space in the horizontal direction, according to SCR aftertreatment system
Relation between ammonia storage tank volume and continual mileage is set to NH3 demands.For example, after two 30L storage tanks 100% fill ammonia, for
SCR system equipped with 8.6L engine heavy trucks, it is continuous to speed mileage up to 15000-18000km.
Claims (6)
1. a kind of ammonia generation device with double crescent or half moon type electric heaters, fixes cover board, crescent or half moon type electricity adds by ammonia storage tank, ammonia tank
Hot device, aluminum alloy frame, lock, tank body buffer body, ammonia-storing material, ammonia air outlet pipe, angle valve, temperature sensor, pressure sensing
Device, safety valve composition, it is characterised in that：The ammonia storage tank both ends of cylinder are spheroid shape end socket, and storage ammonia material is filled inside ammonia storage tank
Material, ammonia air outlet pipe are connected to the center at the top of ammonia storage tank, and ammonia air outlet pipe upper end port is connected with angle valve, degree sensing
Device, pressure sensor and safety valve are arranged in the top of ammonia storage tank；Tank body buffer body top surface is reserved with two arc-shaped grooves,
Aluminum alloy frame is enclosed with the outside of tank body buffer body, two ammonia storage tanks are placed in two grooves of tank body buffer body, ammonia tank
For fixed cover plate lid in the top of two ammonia storage tanks, ammonia tank fixes the both sides of cover board by latching with aluminum alloy frame fixation to storing up ammonia
Tank clamping is spacing, and two crescent or half moon type electric heaters are clipped between the groove of ammonia storage tank and tank body buffer body.
2. according to a kind of ammonia generation device with double crescent or half moon type electric heaters described in claim 1, it is characterised in that
The ammonia storage tank has the volume of 5L ~ 40L, and tank wall thickness is 2mm ~ 4mm, its case material by resistant to ammonia gas corrosion aluminium alloy
Or stainless steel is made.
3. according to a kind of ammonia generation device with double crescent or half moon type electric heaters described in claim 1, it is characterised in that
The inside radius of the crescent or half moon type electric heater circular arc is slightly larger than ammonia storage tank radius 2mm ~ 4mm, and heater thickness is 4mm ~ 10mm,
Heater axial length is suitable with ammonia storage tank axial length, according to the corresponding angle of demand crescent or half moon type heater circular arc of actual use
Spend for 90 ° ~ 180 °, the power of electric heater is 200W ~ 600W；It is flexible silica gel heating device, the heating of flexibility PI polyimides
Film, stainless steel heater.
4. according to a kind of ammonia generation device with double crescent or half moon type electric heaters described in claim 1, it is characterised in that
Two grooves set on the tank body buffer body, the radius of each groove are slightly larger than heater outer radius 2mm ~ 4mm, axial
Length is identical with ammonia storage tank length, and the angle corresponding to groove arc is 180 °, i.e., ammonia storage tank is lain when being put in groove, there is one
Half volume is wrapped up by buffer body, and tank body buffer body material is phenol formaldehyde foam.
5. according to a kind of ammonia generation device with double crescent or half moon type electric heaters described in claim 1, it is characterised in that
The ammonia tank, which fixes cover board, has two circular arcs, and the angle corresponding to each circular arc is 180 °, and radius is slightly larger than ammonia storage tank half
Footpath 2mm ~ 3mm, cover sheet thickness are 4mm ~ 6mm, and fixed cover board both ends are provided with 4 or 6 locks, and ammonia tank fixed cover plate matter is
Fire resistant resin material.
6. according to a kind of ammonia generation device with double crescent or half moon type electric heaters described in claim 1, it is characterised in that
The ammonia-storing material is ammino strontium chloride, ammino calcium chloride, ammoniation magnesium chloride or ammino lithium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757813.4U CN207243484U (en) | 2017-06-27 | 2017-06-27 | A kind of ammonia generation device with double crescent or half moon type electric heaters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757813.4U CN207243484U (en) | 2017-06-27 | 2017-06-27 | A kind of ammonia generation device with double crescent or half moon type electric heaters |
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| Publication Number | Publication Date |
|---|---|
| CN207243484U true CN207243484U (en) | 2018-04-17 |
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| CN201720757813.4U Active CN207243484U (en) | 2017-06-27 | 2017-06-27 | A kind of ammonia generation device with double crescent or half moon type electric heaters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115362129A (en) * | 2020-02-21 | 2022-11-18 | 星火能源公司 | For microwave removal of NH from adsorbent materials 3 System and method |
-
2017
- 2017-06-27 CN CN201720757813.4U patent/CN207243484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115362129A (en) * | 2020-02-21 | 2022-11-18 | 星火能源公司 | For microwave removal of NH from adsorbent materials 3 System and method |
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