CN210141167U

CN210141167U - Integrative coarse denitrification device of diesel oil

Info

Publication number: CN210141167U
Application number: CN201920944692.3U
Authority: CN
Inventors: 唐克; 熊睿; 洪新
Original assignee: Liaoning University of Technology
Current assignee: Liaoning University of Technology
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-13
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses an integrative coarse denitrification device of diesel oil, including the diesel engine main part, be equipped with the blast pipe in the diesel engine main part, still include the denitrogenation pipeline, the denitrogenation pipeline includes elementary adsorption tube way, hybrid pipeline and second grade adsorption tube way, the hybrid pipeline with elementary adsorption tube way second grade adsorption tube way intercommunication, be equipped with air inlet post and carousel on the hybrid pipeline, the air inlet post passes through the carousel is placed again in the hybrid pipeline, be equipped with air intake, spiral duct, air outlet and impeller blade on the air inlet post, spiral duct intercommunication the air intake with the air outlet, the air intake is left end face open-ended cuboid shape, the air intake is located the up end of air inlet post, the impeller blade is located the outside surface of air inlet post. The device can carry out preliminary denitrification facility to the flue gas that diesel engine emits, and this kind of denitrification facility can be regenerated moreover, cyclic utilization.

Description

Integrative coarse denitrification device of diesel oil

Technical Field

The utility model relates to a diesel engine denitrification facility technical field, concretely relates to integrative thick denitrification facility of diesel oil.

Background

The nitrogen oxides have a great damaging effect on the environment, and are one of the main substances for forming acid rain, and also are important substances for forming photochemical smog in the atmosphere and an important factor for consuming ozone. Diesel engines are engines that burn diesel fuel to obtain energy release. In the use process of the diesel engine, a strand of black smoke can be emitted, which not only causes the black smoke in the surrounding environment of operators, but also has serious harm to the environment, so that the preliminary denitrification treatment of the smoke of the diesel engine is particularly important. Examples of the molecular sieve used as the adsorbent include hydrogen-type mordenite, hydrogen-type sapolite, dealuminated mordenite, 13 x-type molecular sieve, and the like. When the exhaust gas containing NOx passes through the molecular sieve bed layer, water and NOx molecules are selectively adsorbed on the surface of the molecular sieve due to strong polarity, and nitric acid is generated on the surface of the molecular sieve and nitric oxide is released. The evolved nitric oxide is adsorbed, together with the nitric oxide and oxygen in the exhaust gas, by catalytic oxidation to nitrogen dioxide on the surface of the molecular sieve. The saturated adsorption bed can be desorbed by heating or steam replacement, and the desorbed molecular sieve can be regenerated after drying. Therefore, the molecular sieve adsorbent has incomparable advantages compared with the activated carbon adsorbent in the adsorption denitrification by using the adsorbent.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a diesel integrated crude denitrification apparatus.

According to the technical scheme provided by the embodiment of the application, the integrated crude denitrification device for diesel comprises a diesel engine main body, wherein an exhaust pipe is arranged on the diesel engine main body, the exhaust pipe is in a stainless steel cylinder shape, the integrated crude denitrification device further comprises a denitrification pipeline, the denitrification pipeline comprises a primary adsorption pipeline, a mixed pipeline and a secondary adsorption pipeline, the primary adsorption pipeline and the secondary adsorption pipeline are both horizontally placed stainless steel pipelines, the left end part of the primary adsorption pipeline is connected with the right end part of the exhaust pipe through threads, the mixed pipeline is a vertically placed cylindrical pipeline, the mixed pipeline is positioned between the primary adsorption pipeline and the secondary adsorption pipeline, the mixed pipeline is communicated with the primary adsorption pipeline and the secondary adsorption pipeline,

the mixing pipeline is provided with an air inlet column and a rotating disc, the upper end surface of the mixing pipeline is provided with a circular through hole, the air inlet column is placed in the mixing pipeline through the through hole, the upper end surface of the air inlet column and the upper end surface of the mixing pipeline are positioned on the same horizontal plane, the rotating disc is fixed on the bottom end surface in the mixing pipeline through a screw, the lower end surface of the air inlet column is fixed on the upper end surface of the rotating disc,

be equipped with air intake, spiral wind channel, air outlet and impeller blade on the air inlet post, the air intake is left end face open-ended cuboid shape, the spiral wind channel is located in the air inlet post, the spiral wind channel is fore-and-aft spiral shape, the cross section in spiral wind channel is circular, the air outlet is located on the side end face at air inlet post lower extreme position, the air outlet is circular, impeller blade is the hook shape, impeller blade's quantity is a plurality of, impeller blade fixes the outside surface of air inlet post, impeller blade's height with the height of air inlet post is the same.

The utility model discloses in, elementary adsorption tube with all pack the molecular sieve adsorbent in the second grade adsorption tube.

The utility model discloses in, the lower terminal surface of hybrid pipeline with the lower terminal surface of elementary adsorption pipeline the lower terminal surface of second grade adsorption pipeline is located same horizontal plane.

In the utility model, the joint of the air inlet column and the mixing pipeline is provided with an O-shaped sealing ring,

the utility model discloses in, the air inlet column is the plastic material.

The utility model discloses in, elementary absorption pipeline the hybrid pipeline with second grade absorption pipeline welds formula structure as an organic whole.

To sum up, the beneficial effect of this application: the device can carry out preliminary denitrification facility to the flue gas that diesel engine emits, and this kind of denitrification facility can be regenerated moreover, cyclic utilization.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of the overall device of the present invention;

FIG. 2 is a schematic view of the denitrification pipeline in front view;

FIG. 3 is a schematic top view of the denitrification pipeline of the present invention;

FIG. 4 is a schematic view of the front cross-sectional structure of the mixing pipe of the present invention;

fig. 5 is a schematic front sectional view of the air inlet pillar of the present invention;

fig. 6 is a schematic top view of the air inlet pillar of the present invention.

Reference numbers in the figures: a diesel engine body-1; an exhaust pipe-2; a denitrification pipeline-3; primary adsorption pipeline-3.1; mixing pipe-3.2; a secondary adsorption pipeline-3.3; an air inlet column-4; air inlet-4.1; 4.2 parts of a spiral air duct; an air outlet-4.3; 4.4 parts of impeller blades; rotating the disc-5.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figures 1 and 2, the diesel oil integrated crude denitrification device comprises a diesel engine main body 1, an exhaust pipe 2 is arranged on the diesel engine main body 1, the exhaust pipe 2 is in a stainless steel cylinder shape and also comprises a denitrification pipeline 3, the denitrification pipeline 3 comprises a primary adsorption pipeline 3.1, a mixing pipeline 3.2 and a secondary adsorption pipeline 3.3, the primary adsorption pipeline 3.1 and the secondary adsorption pipeline 3.3 are both horizontally arranged stainless steel pipelines, the left end part of the primary adsorption pipeline 3.1 is connected with the right end part of the exhaust pipe 2 through threads, the mixing pipeline 3.2 is a vertically placed cylindrical pipeline, the mixing pipeline 3.2 is positioned between the primary adsorption pipeline 3.1 and the secondary adsorption pipeline 3.3, the mixing pipeline 3.2 is communicated with the primary adsorption pipeline 3.1 and the secondary adsorption pipeline 3.3, molecular sieve adsorbent is filled in the primary adsorption pipeline 3.1 and the secondary adsorption pipeline 3.3. The lower end face of the mixing pipeline 3.2, the lower end face of the primary adsorption pipeline 3.1 and the lower end face of the secondary adsorption pipeline 3.3 are located on the same horizontal plane. The primary adsorption pipeline 3.1, the mixing pipeline 3.2 and the secondary adsorption pipeline 3.3 are welded into an integral structure.

As shown in fig. 3 and 4, an air inlet column 4 and a rotating disc 5 are arranged on the mixing pipe 3.2, a circular through hole is arranged on the upper end surface of the mixing pipe 3.2, the air inlet column 4 is placed in the mixing pipe 3.2 through the through hole, the upper end surface of the air inlet column 4 and the upper end surface of the mixing pipe 3.2 are located on the same horizontal plane, the rotating disc 5 is fixed on the bottom end surface in the mixing pipe 3.2 through a screw, the lower end surface of the air inlet column 4 is fixed on the upper end surface of the rotating disc 5, an O-shaped sealing ring is arranged at the joint of the air inlet column 4 and the mixing pipe 3.2,

as shown in fig. 5 and 6, an air inlet 4.1, a spiral air duct 4.2, an air outlet 4.3 and impeller blades 4.4 are arranged on the air inlet column 4, the air inlet 4.1 is in the shape of a cuboid with an open left end face, the spiral air duct 4.2 is positioned in the air inlet column 4, the spiral air duct 4.2 is in a longitudinal spiral shape, the cross section of the spiral air duct 4.2 is circular, the air outlet 4.3 is positioned on the side end face of the lower end part of the air inlet column 4, the air outlet 4.3 is circular, the impeller blades 4.4 are in the shape of a sickle, the impeller blades 4.4 are in a plurality of numbers, the impeller blades 4.4 are fixed on the outer side surface of the air inlet column 4, and the height of the impeller blades 4.4 is the same as the height of the air inlet column 4. The air inlet column 4 is made of plastic.

Example 1: denitrogenation pipeline 3 through the screw thread with blast pipe 2 is connected integratively, air inlet column 4 passes through rotating disc 5 fixes in hybrid tube 3.2, rotating disc 5 passes through the fix with screw on the bottom face in hybrid tube 3.2, air inlet column 4's lower terminal surface is fixed through hot riveting technique on rotating disc 5's the up end, impeller blade 4.4 is connected through the connected mode of hot melt air inlet column 4's surface, air intake 4.1 is connected through the connected mode of hot melt air inlet column 4's up end, spiral wind channel 4.2 is for being located vertical heliciform through-hole in the air inlet column 4.

Example 2: and the denitrification pipeline 3 is connected with the exhaust pipe 2 through the thread at the left end of the primary adsorption pipeline 3.1.

When the diesel engine main body 1 works, the exhaust pipe 2 discharges exhaust gas generated when the diesel engine main body 1 works, the exhaust gas enters the denitrification pipeline 3 through the exhaust pipe 2, the exhaust gas firstly passes through the primary adsorption pipeline 3.1, then the molecular sieve adsorbent in the primary adsorption pipeline 3.1 converts NOx in the exhaust gas into NO, then the gas enters the mixing pipeline 3.2, the gas acts on the impeller blades 4.4 on the air inlet column 4 due to the flowing direction of the gas, so that the air inlet column 4 always rotates in one direction, at this time, the air inlet 4.1 is driven to rotate, because the left end face of the air inlet 4.1 is open, during the rotation process, gas continuously enters the air inlet 4.1, and the entering gas flows through the spiral air duct 4.2 to reach the air outlet 4.3, so that the air enters the mixing pipeline 3.2, at this time, air and NO gas enter the secondary adsorption pipeline 3.3 together, and the oxygen in the air and the NO gas oxidize NO into NO under the action of the molecular sieve adsorbent₂And then absorbed by the molecular sieve adsorbent.

When the adsorbents in the primary adsorption pipeline 3.1 and the secondary adsorption pipeline 3.3 are adsorbed and saturated, the adsorbents can be regenerated through an adsorbent regeneration step, so that the adsorbents can be recycled, the environment can be beautified, and waste gas can be recycled.

The foregoing description is only exemplary of the preferred embodiments of the application and is provided for the purpose of illustrating the general principles of the technology and the like. Meanwhile, the scope of the invention according to the present application is not limited to the technical solutions in which the above-described technical features are combined in a specific manner, and also covers other technical solutions in which the above-described technical features or their equivalent are combined arbitrarily without departing from the inventive concept described above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides an integrative coarse denitrification device of diesel oil, includes diesel engine main part (1), be equipped with blast pipe (2) on diesel engine main part (1), blast pipe (2) are the cylinder shape of stainless steel, characterized by: the device is characterized by further comprising a denitrification pipeline (3), wherein the denitrification pipeline (3) comprises a primary adsorption pipeline (3.1), a mixed pipeline (3.2) and a secondary adsorption pipeline (3.3), the primary adsorption pipeline (3.1) and the secondary adsorption pipeline (3.3) are horizontally arranged stainless steel pipelines, the left end part of the primary adsorption pipeline (3.1) is connected with the right end part of the exhaust pipe (2) through threads, the mixed pipeline (3.2) is a vertically arranged cylindrical pipeline, the mixed pipeline (3.2) is positioned between the primary adsorption pipeline (3.1) and the secondary adsorption pipeline (3.3), and the mixed pipeline (3.2) is communicated with the primary adsorption pipeline (3.1) and the secondary adsorption pipeline (3.3),

the air inlet device is characterized in that an air inlet column (4) and a rotating disc (5) are arranged on the mixing pipeline (3.2), a circular through hole is formed in the upper end face of the mixing pipeline (3.2), the air inlet column (4) is placed in the mixing pipeline (3.2) through the through hole, the upper end face of the air inlet column (4) and the upper end face of the mixing pipeline (3.2) are located on the same horizontal plane, the rotating disc (5) is fixed on the bottom end face in the mixing pipeline (3.2) through screws, the lower end face of the air inlet column (4) is fixed on the upper end face of the rotating disc (5),

be equipped with air intake (4.1), spiral wind channel (4.2), air outlet (4.3) and impeller blade (4.4) on air inlet column (4), air intake (4.1) is left end face open-ended cuboid shape, spiral wind channel (4.2) are located in air inlet column (4), spiral wind channel (4.2) are fore-and-aft spiral shape, the cross section of spiral wind channel (4.2) is circular, air outlet (4.3) are located on the side end face at air inlet column (4) lower extreme position, air outlet (4.3) are circular, impeller blade (4.4) are the hook shape, the quantity of impeller blade (4.4) is a plurality of, impeller blade (4.4) are fixed the outside surface of air inlet column (4), the height of impeller blade (4.4) with the height of air inlet column (4) is the same.

2. The integrated crude denitrification device for diesel oil as set forth in claim 1, wherein: molecular sieve adsorbent is filled in the primary adsorption pipeline (3.1) and the secondary adsorption pipeline (3.3).

3. The integrated crude denitrification device for diesel oil as set forth in claim 1, wherein: the lower end face of the mixing pipeline (3.2), the lower end face of the primary adsorption pipeline (3.1) and the lower end face of the secondary adsorption pipeline (3.3) are located on the same horizontal plane.

4. The integrated crude denitrification device for diesel oil as set forth in claim 1, wherein: and an O-shaped sealing ring is arranged at the joint of the air inlet column (4) and the mixing pipeline (3.2).

5. The integrated crude denitrification device for diesel oil as set forth in claim 1, wherein: the air inlet column (4) is made of plastic materials.

6. The integrated crude denitrification device for diesel oil as set forth in claim 1, wherein: the primary adsorption pipeline (3.1), the mixing pipeline (3.2) and the secondary adsorption pipeline (3.3) are welded into an integral structure.