CN217872976U - Diesel engine tail gas purification device utilizing waste heat - Google Patents
Diesel engine tail gas purification device utilizing waste heat Download PDFInfo
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- CN217872976U CN217872976U CN202220599484.6U CN202220599484U CN217872976U CN 217872976 U CN217872976 U CN 217872976U CN 202220599484 U CN202220599484 U CN 202220599484U CN 217872976 U CN217872976 U CN 217872976U
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Abstract
The utility model is suitable for a tail gas purification technical field provides a waste heat utilization's diesel engine tail gas cleanup unit, including the urceolus, the inner wall fixedly connected with inner tube of urceolus one end, the inside of inner tube is provided with DPF particle filter, the inner wall fixedly connected with blast pipe go-between of the urceolus other end, the inside of urceolus just is close to the position department of blast pipe go-between is provided with the volcanic rock piece, the inner wall fixedly connected with water conservancy diversion seat of urceolus, the inside of urceolus is provided with waste heat utilization mechanism. This waste heat utilization's diesel engine tail gas cleanup unit makes the temperature of urceolus keep at invariable state through waste heat utilization mechanism, when tail gas emission next time, can utilize heat retaining principle to carry out rapid heating up to make the inside filter core coating of DOC oxidation catalyst converter exert the efficiency comprehensively, prevent that the filter core coating only has the problem that the surface is available, avoided the waste of resource, improved the practicality.
Description
Technical Field
The utility model belongs to the technical field of tail gas purification, especially, relate to a waste heat utilization's diesel engine tail gas cleanup unit.
Background
The technical measures of the tail gas purifying chamber for reducing pollution influence comprise internal purification and external purification of an engine, wherein the former is to burn a part of discharged waste gas again to reduce harmful substances in the waste gas, and the latter is to install a tail gas catalytic purifier, so that the waste gas such as carbon monoxide, hydrocarbon, nitrogen oxide and the like discharged from an internal combustion engine is converted into carbon dioxide, nitrogen and water through the catalytic purifier.
The tail gas can produce certain heat when discharging, utilizes the heat to make the automatic regeneration function of the inside filter core coating of tail gas clean room play a role to collect the fatlute carbon deposit in the tail gas.
However, most of the black smoke discharged in a cold machine state is low-temperature black smoke, and the low temperature is difficult to fully exert the automatic regeneration function in the filter element coating, so that only the surface of 90% of the filter element is blocked by greasy soot, and the actual filter layer has a plurality of spaces for collecting carbon deposition.
SUMMERY OF THE UTILITY MODEL
The utility model provides a diesel engine tail gas cleanup unit of waste heat utilization aims at solving the lower temperature and is difficult to make the automatic regeneration function in the filter core coating and exert comprehensively, leads to 90% filter core only the surface to be plugged up by fatluted carbon ash, and the problem that the carbon deposit can be collected in actual filter layer a lot of spaces in addition.
The utility model discloses a diesel engine tail gas purification device of waste heat utilization realizes like this, a diesel engine tail gas purification device of waste heat utilization, including the urceolus, the inner wall fixedly connected with inner tube of urceolus one end, the inside of inner tube is provided with DPF granule filter, the inner wall fixedly connected with blast pipe go-between of the urceolus other end, the inside of urceolus and the position department that is close to the blast pipe go-between are provided with volcanic rock piece, the inner wall fixedly connected with water conservancy diversion seat of urceolus, the inside of urceolus is provided with waste heat utilization mechanism;
the waste heat utilization mechanism includes the cotton ring that keeps warm, the cotton fixed cover of ring that keeps warm is located the inner wall of urceolus, and the fixed cover of inner wall of the cotton ring that keeps warm is equipped with the heat conduction ring, the inside fixedly connected with baffle of heat conduction ring, the inside fixedly connected with volcanic rock section of thick bamboo of heat conduction ring, the inside of heat conduction ring just is located one side of volcanic rock section of thick bamboo is provided with DOC oxidation catalyst converter.
Preferably, a cavity is formed in the volcanic rock cylinder, and a guide pipe extending to the cavity is arranged in the guide seat.
Preferably, the exhaust pipe connecting ring, the heat insulation cotton ring and the heat conduction ring are all arranged in a circular ring shape, the outer cylinder is of a hollow structure, and the outer cylinder and the inner cylinder are fixedly connected in a full welding mode.
Preferably, the inner wall of the outer cylinder is provided with a vacuum ring, and the vacuum ring is cylindrical.
Preferably, the outer surface of the outer barrel is fixedly sleeved with a heat insulation sleeve, the outer surface of the heat insulation sleeve is fixedly connected with a hoop, and the hoop is provided with a plurality of groups.
Preferably, the other end of the inner cylinder is detachably provided with an exhaust port, one side of the exhaust port is fixedly connected with a threaded sleeve, and the other end of the inner cylinder is provided with a threaded groove in threaded connection with the exhaust port.
Preferably, mounting grooves are formed in the surfaces of the inner cylinder and the exhaust port, and heat-resistant sealing strips are fixedly sleeved inside the mounting grooves.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a waste heat utilization's diesel engine tail gas cleanup unit, can be when the exhaust emissions who contains the uniform temperature through waste heat utilization mechanism, retrieve the heat, make the heat gather heat through volcanic rock piece and volcanic rock section of thick bamboo, then utilize the heat conduction ring to conduct the temperature for the cotton ring that keeps warm, thereby utilize the cotton ring that keeps warm to keep warm to the heat, the temperature that makes the urceolus keeps at invariable state, when exhaust emissions next time, can utilize heat retaining principle to carry out rapid heating up, thereby make the inside filter core coating of DOC oxidation catalyst converter exert the efficiency comprehensively, prevent that filter core coating only has the problem that the surface is available, the waste of resource has been avoided, and the practicability is improved.
Drawings
FIG. 1 is a schematic front sectional view of the structure of the present invention;
FIG. 2 is a schematic side view of the outer barrel of the present invention;
fig. 3 is an enlarged schematic view of a structure at a in fig. 1 according to the present invention.
In the figure: 1-outer cylinder, 2-inner cylinder, 3-DPF particle filter, 4-exhaust pipe connecting ring, 5-volcanic rock block, 6-guide seat, 7-heat preservation cotton ring, 8-heat conduction ring, 9-clapboard, 10-volcanic rock cylinder, 11-DOC oxidation catalyst, 12-cavity, 13-guide pipe, 14-vacuum ring, 15-heat preservation sleeve, 16-anchor ear, 17-exhaust port, 18-thread sleeve, 19-mounting groove and 20-heat-resistant sealing strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a diesel engine tail gas cleanup unit of waste heat utilization, includes urceolus 1, the inner wall fixedly connected with inner tube 2 of 1 one end of urceolus, and the inside of inner tube 2 is provided with DPF particle filter 3, can filter the seizure with the particulate matter in the tail gas through DPF particle filter 3, can reduce the particulate matter in the tail gas, makes the filter effect can reach 70% -90%.
The inner wall of the other end of the outer cylinder 1 is fixedly connected with an exhaust pipe connecting ring 4, and the outer cylinder 1 can be arranged on an exhaust pipe of a diesel engine through the arranged exhaust pipe connecting ring 4.
The inside of urceolus 1 and the position department that is close to blast pipe go-between 4 are provided with volcanic rock piece 5, utilize volcanic rock piece 5 to gather heat with the temperature that produces when exhaust emissions, make volcanic rock piece 5 rapid heating up, when the exhaust is discharged, then can pass through volcanic rock piece 5 to utilize volcanic rock piece 5 to tentatively heat up tail gas.
The inner wall fixedly connected with water conservancy diversion seat 6 of urceolus 1, the inside of urceolus 1 is provided with waste heat utilization mechanism, and the water conservancy diversion seat 6 of setting can lead tail gas, then utilizes waste heat utilization mechanism can keep the temperature with exhaust emissions to make the inside of urceolus 1 be the heat preservation environment, the tail gas of being convenient for next time carries out rapid heating up, thereby reaches the service temperature of 11 inside filter core coatings of DOC oxidation catalyst converter.
The waste heat utilization mechanism includes that the cotton ring 7 that keeps warm, the inner wall of urceolus 1 is located to the cotton ring 7 fixed cover that keeps warm, and the fixed cover of inner wall of the cotton ring 7 that keeps warm is equipped with heat conduction ring 8, the inside fixedly connected with baffle 9 of heat conduction ring 8, the inside fixedly connected with volcanic rock section of thick bamboo 10 of heat conduction ring 8, the inside of heat conduction ring 8 and the one side that is located volcanic rock section of thick bamboo 10 are provided with DOC oxidation catalyst converter 11.
The heat gathers heat through volcanic rock piece 5 and volcanic rock section of thick bamboo 10, then utilizes heat conduction ring 8 to conduct the temperature for heat preservation cotton ring 7 to utilize heat preservation cotton ring 7 to keep warm to the heat, make the temperature of urceolus 1 keep at invariable state, when next exhaust emissions, can utilize heat retaining principle to carry out rapid heating up, thereby make the filter core coating of DOC oxidation catalyst converter 11 inside exert the efficiency comprehensively, prevent that the filter core coating only has the problem that the surface is available.
Further, a cavity 12 is formed in the volcanic rock cylinder 10, and a guide pipe 13 extending into the cavity 12 is arranged in the guide seat 6.
In this embodiment, the guide pipe 13 is provided to guide the exhaust gas into the cavity 12 through the guide seat 6, i.e., to collect heat from the exhaust gas through the porosity of the volcanic rock cylinder 10.
Further, the exhaust pipe connecting ring 4, the heat insulation cotton ring 7 and the heat conducting ring 8 are all arranged in a circular ring shape, the outer cylinder 1 is of a hollow structure, and the outer cylinder 1 and the inner cylinder 2 are fixedly connected in a full-length welding mode.
In the embodiment, the air leakage can be avoided by full welding.
Further, a vacuum ring 14 is formed on the inner wall of the outer cylinder 1, and the vacuum ring 14 is formed in a cylindrical shape.
In the present embodiment, the heat conductivity of the outer tube 1 can be maintained by the vacuum ring 14, and the temperature can be maintained in the outer tube 1 for a long time.
Further, the outer surface of the outer cylinder 1 is fixedly sleeved with a heat insulation sleeve 15, the outer surface of the heat insulation sleeve 15 is fixedly connected with a hoop 16, and the hoop 16 is provided with a plurality of groups.
In the present embodiment, the insulating jacket 15 is provided to insulate the casing of the outer cylinder 1, and the insulating jacket 15 can be fixed to the outer surface of the outer cylinder 1 by using the anchor 16.
Further, the other end of the inner cylinder 2 is detachably provided with an exhaust port 17, one side of the exhaust port 17 is fixedly connected with a threaded sleeve 18, and the other end of the inner cylinder 2 is provided with a threaded groove in threaded connection with the exhaust port 17.
In this embodiment, the exhaust port 17 is provided to rotate so as to drive the threaded sleeve 18 to rotate, so that the threaded sleeve 18 is screwed with the inner cylinder 2 through the threaded groove, and the installation of the exhaust port 17 is completed.
The installation groove 19 is provided to install the heat-resistant weather strip 20, and the joint of the exhaust port 17 and the inner tube 2 can be sealed by the installed heat-resistant weather strip 20.
The utility model discloses a theory of operation and use flow: when the tail gas exhaust device is used, tail gas can enter the inner part of the outer barrel 1 through the exhaust pipe connecting ring 4, when the tail gas enters the inner part of the outer barrel 1, the tail gas can firstly contact the volcanic rock block 5, heat in the tail gas can be heated through the volcanic rock block 5, the heated tail gas can enter the inner part of the cavity 12 through the guide pipe 13, then the temperature in the tail gas is further concentrated through the volcanic rock barrel 10, the heat is conducted to the heat-insulation cotton ring 7 through the conductivity of the heat-conduction ring 8, the temperature is stored in the inner part of the outer barrel 1 through the heat-insulation cotton ring 7, when the next tail gas is exhausted, the tail gas can be rapidly heated through the stored heat, the heated tail gas can be treated through the DOC oxidation catalyst 11 and the DPF particle filter 3, and finally exhausted through the exhaust port 17.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a diesel engine tail gas cleanup unit of waste heat utilization which characterized in that: the device comprises an outer barrel (1), wherein an inner barrel (2) is fixedly connected to the inner wall of one end of the outer barrel (1), a DPF particle filter (3) is arranged inside the inner barrel (2), an exhaust pipe connecting ring (4) is fixedly connected to the inner wall of the other end of the outer barrel (1), volcanic rock blocks (5) are arranged inside the outer barrel (1) and at positions close to the exhaust pipe connecting ring (4), a flow guide seat (6) is fixedly connected to the inner wall of the outer barrel (1), and a waste heat utilization mechanism is arranged inside the outer barrel (1);
the waste heat utilization mechanism is including keeping warm cotton ring (7), the fixed cover of cotton ring (7) that keeps warm is located the inner wall of urceolus (1), and the fixed cover of inner wall of the cotton ring (7) that keeps warm is equipped with heat conduction ring (8), the inside fixedly connected with baffle (9) of heat conduction ring (8), the inside fixedly connected with volcanic rock section of thick bamboo (10) of heat conduction ring (8), the inside of heat conduction ring (8) just is located one side of volcanic rock section of thick bamboo (10) is provided with DOC oxidation catalyst converter (11).
2. The exhaust gas purification device of a diesel engine using waste heat according to claim 1, wherein: cavity (12) have been seted up to the inside of volcanic rock section of thick bamboo (10), the inside of water conservancy diversion seat (6) is provided with and extends to honeycomb duct (13) inside cavity (12).
3. The exhaust gas purification device of a diesel engine using waste heat according to claim 1, wherein: the exhaust pipe connecting ring (4), the heat-preservation cotton ring (7) and the heat conduction ring (8) are all arranged in a circular ring shape, the outer barrel (1) is of a hollow structure, and the outer barrel (1) and the inner barrel (2) are fixedly connected in a full-welding mode.
4. The exhaust gas purification device of a diesel engine using waste heat according to claim 1, wherein: the inner wall of the outer cylinder (1) is provided with a vacuum ring (14), and the vacuum ring (14) is cylindrical.
5. The exhaust gas purification device of a diesel engine using waste heat according to claim 1, wherein: the outer fixed surface of urceolus (1) is equipped with insulation cover (15) in a sleeved manner, the outer fixed surface of insulation cover (15) is connected with staple bolt (16), staple bolt (16) are provided with a plurality of groups.
6. The exhaust gas purification device of a diesel engine using waste heat according to claim 1, wherein: the other end of the inner cylinder (2) is detachably provided with an exhaust port (17), one side of the exhaust port (17) is fixedly connected with a threaded sleeve (18), and the other end of the inner cylinder (2) is provided with a threaded groove in threaded connection with the exhaust port (17).
7. The exhaust gas purification device of a diesel engine using waste heat according to claim 6, wherein: inner tube (2) with mounting groove (19) have all been seted up on the surface of gas vent (17), the inside fixed cover of mounting groove (19) is equipped with heat-resisting sealing strip (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220599484.6U CN217872976U (en) | 2022-03-18 | 2022-03-18 | Diesel engine tail gas purification device utilizing waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220599484.6U CN217872976U (en) | 2022-03-18 | 2022-03-18 | Diesel engine tail gas purification device utilizing waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217872976U true CN217872976U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220599484.6U Active CN217872976U (en) | 2022-03-18 | 2022-03-18 | Diesel engine tail gas purification device utilizing waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217872976U (en) |
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2022
- 2022-03-18 CN CN202220599484.6U patent/CN217872976U/en active Active
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