CN210460807U

CN210460807U - Exhaust emission post-treatment device for diesel fork truck

Info

Publication number: CN210460807U
Application number: CN201920840784.7U
Authority: CN
Inventors: 施华平
Original assignee: Zhejiang Huahe Forklift Co ltd
Current assignee: Zhejiang Huahe Forklift Co ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-05-05
Anticipated expiration: 2029-06-05

Abstract

The utility model provides a diesel fork truck exhaust emissions aftertreatment device belongs to tail gas treatment technical field. The catalyst-free water-based filter bottle comprises a bottle main body, wherein a catalyst is arranged in the bottle main body, flexible fillers are further arranged on the inner wall of the bottle main body, and two detachable filter assemblies are further arranged at two ends of the bottle main body respectively. The utility model discloses well catalyst distributes in the bottle main part, improve the catalytic effect, the catalyst can be with the harmful gas in the tail gas like CO, harmful gas such as HC and NOx changes harmless carbon dioxide into through oxidation and reduction, water and nitrogen gas etc, prevent that tail gas from causing the pollution to the air, detachable filter assembly can intercept the solid particle in the tail gas, prevent the black cigarette polluted environment in the tail gas, and filter assembly can dismantle the washing, the reutilization, and the cost is reduced, flexible filler can slow down the vibrations of fork truck during operation, prevent to destroy the structure of fixed catalyst because of vibrations, catalytic effect is reduced.

Description

Exhaust emission post-treatment device for diesel fork truck

Technical Field

The utility model belongs to the technical field of the tail gas treatment, a diesel fork truck exhaust emissions aftertreatment device is related to.

Background

The diesel fork truck is a fork truck which uses diesel oil, gasoline or liquefied petroleum gas as fuel and is powered by an engine, the load capacity is 0.5 ton to 45 tons, and the load capacity is generally divided into the following parts: counter-balanced formula fork truck, container fork truck (openly hang), side fork truck, fork truck's tail gas is very serious to the pollution of environment, for non-staining environment, need handle fork truck's tail gas, generally at fork truck's gas vent installation tail gas processing apparatus among the conventional art, shake great when using because of fork truck, it is great to the tail gas processing apparatus influence among the conventional art, lead to the tail gas processing apparatus to damage easily, reduce its purifying effect to tail gas.

In order to overcome the defects of the prior art, people continuously explore and provide various solutions, for example, a Chinese patent discloses a split type tail gas purification and noise elimination internal combustion forklift, which has the following application numbers: (CN201620877200.X), including a muffler and a three-way catalyst connected with tail gas, wherein the muffler includes a muffler cylinder, an air inlet end of the muffler cylinder is connected with an air inlet elbow, an air outlet end of the muffler cylinder is connected with an exhaust tail pipe, an air outlet end of the three-way catalyst is connected with the air inlet elbow, two ends of the muffler cylinder are respectively and fixedly provided with a mounting bracket, and the muffler cylinder is mounted on a frame through the mounting brackets; the silencer barrel outside sets firmly the heat exchanger that separates that the slope set up, the slope of three way catalyst converter sets up between silencer barrel and the heat exchanger that separates, and separates the equidirectional slope setting of heat exchanger. With silencer and three way catalyst converter separation design, make full use of fork truck tailstock and the inner space of counter weight, and realized the dual effect to tail gas purification and noise elimination, effectively satisfy emission standard to the cost is reduced. The scheme has the advantages of tail gas purification and noise elimination, but also has the defect that the vibration of the diesel fork lift truck in use can damage the tail gas treatment device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a diesel fork truck exhaust emissions aftertreatment device is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a diesel fork truck exhaust emissions aftertreatment device, includes the bottle main part, is provided with the catalyst in the bottle main part, bottle main part inner wall on still be equipped with flexible filler, bottle main part both ends still are equipped with two detachable filtering component respectively.

In the exhaust emission aftertreatment device for the diesel fork lift truck, the flexible filler is sponge, the two filter assemblies are symmetrically arranged along the central line of the bottle main body, each filter assembly comprises two detachable sleeves respectively connected with the bottle main body, and a filter part is further arranged in each sleeve.

In the exhaust emission aftertreatment device for the diesel fork lift truck, the filter part comprises a first filter screen layer, an adsorption layer and a second filter screen layer which are sequentially arranged in the sleeve.

In the exhaust emission aftertreatment device for the diesel fork lift truck, the adsorption layer is internally provided with the adsorption material, and the diameter of the filter mesh of the first filter mesh layer is larger than that of the filter mesh of the second filter mesh layer.

In the exhaust emission after-treatment device for the diesel fork lift truck, the adsorption material arranged in the adsorption layer is activated carbon.

In foretell diesel fork truck exhaust emissions aftertreatment device, the bottle main part be the cylinder, bottle main part inner wall goes up to be provided with two annular ribs along the central line symmetry of bottle main part, the annular rib top even has the catalysis case that is equipped with the catalyst, is equipped with a plurality of air vent on the catalysis case end wall.

In foretell diesel fork truck exhaust emissions aftertreatment device, the sleeve be conical, the great one end in sleeve aperture insert in the bottle main part and with the cooperation of annular rib, and sleeve outer wall and the cooperation of hugging closely of bottle main part inner wall, catalysis case both ends and two filtering component between form the cushion chamber of admitting air respectively and give vent to anger the cushion chamber.

In foretell diesel fork truck exhaust emissions aftertreatment device, the less one end of sleeve still links there is the mounting, and mounting one end is the link, and the mounting other end is the stiff end, and the link inserts to the less one end in sleeve aperture, and the outer wall of link and the inner wall of the less one end of sleeve hug closely the cooperation.

In foretell diesel fork truck exhaust emissions aftertreatment device, sleeve and annular rib be connected with department and sleeve and link department all be equipped with the chucking spare, the mounting is located fixed end department and is equipped with the triangle connector, is equipped with the fixed orifices that a plurality of is used for construction bolt on the triangle connector.

In foretell diesel fork truck exhaust emissions aftertreatment device, the chucking spare be the staple bolt, three fixed orifices has on the triangle connector, three fixed orifices is regular triangle-shaped setting on the triangle connector, still is equipped with the exhaust hole in the mounting.

Compared with the prior art, the utility model has the advantages of:

1. catalyst distributes in the bottle main part, improve the catalytic effect, the catalyst can be with harmful gas in the tail gas like CO, harmful gas such as HC and NOx changes into harmless carbon dioxide through oxidation and reduction, water and nitrogen gas etc, prevent that tail gas from causing the pollution to the air, detachable filtering component can intercept the solid particle in the tail gas, prevent the black cigarette polluted environment in the tail gas, and filtering component can dismantle the washing, the reutilization, reduce cost, flexible filler can slow down the vibrations of fork truck during operation, prevent to destroy the structure of fixed catalyst because of vibrations, reduce catalytic effect.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of an external structure provided by the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a left side view of the present invention.

In the figure, a bottle body 1, a catalyst 2, a filter assembly 3, a sleeve 4, a filter part 5, a first filter screen layer 6, an adsorption layer 7, a second filter screen layer 8, an annular rib 9, a catalytic box 10, a vent hole 11, a flexible filler 12, a clamping piece 13, a fixing piece 14, a connecting end 15, a fixing end 16, a triangular connector 17, a fixing hole 18, an exhaust hole 19, an air inlet buffer cavity and an air outlet buffer cavity.

Detailed Description

As shown in fig. 2, the exhaust emission post-treatment device for the diesel fork lift truck comprises a bottle main body 1, a catalyst 2 is arranged in the bottle main body 1, a flexible filler 12 is further arranged on the inner wall of the bottle main body 1, and two detachable filter assemblies 3 are further arranged at two ends of the bottle main body 1 respectively.

In this embodiment, catalyst 2 distributes in bottle main part 1, improve catalytic effect, catalyst 2 can be with the harmful gas in the tail gas like CO, harmful gas such as HC and NOx changes into harmless carbon dioxide through oxidation and reduction, water and nitrogen gas, prevent that tail gas from leading to the fact the pollution to the air, detachable filter assembly 3 can intercept the solid particle in the tail gas, prevent the black cigarette polluted environment in the tail gas, and filter assembly 3 can dismantle the washing, the reutilization, reduce cost, flexible filler 12 can slow down the vibrations of fork truck during operation, prevent because of vibrations with fixed catalyst 2's structural damage, catalytic effect is reduced.

It will be understood by those skilled in the art that catalyst 2 may be a commercially available product such as a three-way catalyst, an SCR catalyst, etc., and preferably, a three-way catalyst is selected for use in this embodiment.

The flexible filler 12 is a sponge, the two filter assemblies 3 are symmetrically arranged along the central line of the bottle main body 1, the filter assemblies 3 comprise two detachable sleeves 4 respectively connected with the bottle main body 1, and filter components 5 are further arranged in the sleeves 4.

In this embodiment, combine fig. 1 and fig. 2 to show, filter part 5 can intercept the solid particle in the tail gas, prevents the black cigarette polluted environment in the tail gas, and detachable sleeve 4 can be dismantled and wash, and reutilization, reduce cost, sponge can provide better shock attenuation effect under the condition that does not influence the gas permeability.

As shown in fig. 2, the filter member 5 includes a first filter layer 6, an adsorption layer 7, and a second filter layer 8, which are sequentially provided in the sleeve 4. In this embodiment, No. 6 filter screen layers and No. 8 filter screen layers can intercept the solid particle in the tail gas, prevent the black cigarette polluted environment in the tail gas, and adsorbed layer 7 can adsorb some materials in the tail gas, improves tail gas purification effect.

As shown in fig. 2, an adsorbing material is provided in the adsorbing layer 7, the filter mesh diameter of the first filter mesh layer 6 is larger than that of the second filter mesh layer 8, and the adsorbing material provided in the adsorbing layer 7 is activated carbon.

In this embodiment, some materials in the active carbon can adsorb in the tail gas, improve tail gas purification effect, and the filter screen aperture of filter screen layer 6 is greater than the filter screen aperture of filter screen layer 8 No. two, can carry out the secondary interception with the solid particle in the tail gas to separate the interception with the granule of different diameters, improve the interception effect.

The bottle main body 1 is cylindrical, two annular ribs 9 are symmetrically arranged on the inner wall of the bottle main body 1 along the central line of the bottle main body 1, the top of each annular rib 9 is connected with a catalytic box 10 filled with a catalyst 2, and the end wall of each catalytic box 10 is provided with a plurality of vent holes 11.

In this embodiment, as shown in fig. 2, the two annular ribs 9 can enhance the strength of the bottle main body 1, and can form a gap between the catalytic box 10 containing the catalyst 2 and the inner wall of the bottle main body 1, thereby increasing the contact area between the catalyst 2 and the tail gas, improving the catalytic effect, and the vent holes 11 can make the tail gas fully enter the catalytic box 10 to contact with the catalyst 2.

Sleeve 4 is conical, and the great one end in sleeve 4 aperture is inserted in bottle main part 1 and is cooperated with 9 ribs of annular rib, and 4 outer walls of sleeve and 1 inner wall of bottle main part hug closely the cooperation, 10 both ends of catalysis case and two filtering component 3 between form the cushion chamber of admitting air respectively and give vent to anger the cushion chamber.

In this embodiment, as shown in fig. 2, the outer wall of the sleeve 4 is tightly fitted with the inner wall of the bottle body 1 to prevent the sleeve 4 from loosening from occurring with the bottle body 1, and to prevent the tail gas from leaking, and the gas inlet buffer cavity and the gas outlet buffer cavity can reduce the rate of entering the tail gas, so that the tail gas can be fully contacted with the catalyst 2.

The smaller end of the sleeve 4 is also connected with a fixing piece 14, one end of the fixing piece 14 is a connecting end 15, the other end of the fixing piece 14 is a fixed end 16, the connecting end 15 is inserted into the smaller end of the aperture of the sleeve 4, and the outer wall of the connecting end 15 is closely matched with the inner wall of the smaller end of the sleeve 4.

In this embodiment, as shown in fig. 2 and 3, the outer wall of the connecting end 15 is tightly fitted to the inner wall of the smaller end of the sleeve 4, so as to prevent the sleeve 4 and the fixing member 14 from loosening and prevent tail gas from leaking, and the fixing end 16 can connect the bottle body 1 to an exhaust port of a forklift.

Sleeve 4 and the department that links to each other of annular rib 9 and sleeve 4 and link 15 department of linking to each other all be equipped with chucking spare 13, mounting 14 is located 16 departments of stiff end and is equipped with triangle connector 17, is equipped with a plurality of on the triangle connector 17 and is used for construction bolt's fixed orifices 18.

In this embodiment, as shown in fig. 2 and 3, the clamping member 13 can reinforce the joint between the sleeve 4 and the annular rib 9 and the joint between the sleeve 4 and the connecting end 15 to prevent loosening and dropping, and the plurality of fixing holes 18 for mounting bolts can fix the bottle body 1 and the exhaust port of the forklift through the external bolts.

The clamping piece 13 is a hoop, three fixing holes 18 are formed in the triangular connector 17, the three fixing holes 18 are arranged on the triangular connector 17 in a regular triangle shape, and exhaust holes 19 are further formed in the fixing piece 14.

In this embodiment, as shown in fig. 2 and 3, the three fixing holes 18 are disposed on the triangular connector 17 in a regular triangle, so as to form a triangular positioning to enable the connection to be firmer, and the fixing member 14 is further provided with an exhaust hole 19 to communicate the inside of the bottle body 1 with the outside of the bottle body 1, so as to facilitate the passage of the tail gas.

The working principle of the utility model is that, two exhaust holes 19 on the mounting 14 that links to each other with bottle main part 1 both ends link to each other with diesel fork truck's internal-combustion engine gas vent and diesel fork truck's tail gas export respectively, diesel fork truck's internal-combustion engine gas vent exhaust tail gas is through No. one filter screen layer 6 in proper order, adsorbed layer 7 and No. two filter screen layers 8, activated carbon in the adsorbed layer 7 can adsorb some materials in the tail gas, improve tail gas purifying effect, No. one filter screen layer 6 and No. two filter screen layers 8 can intercept the solid particle in the tail gas, tail gas through No. two filter screen layers 8 gets into in bottle main part 1 through the cushion chamber of admitting air and reacts with catalyst 2, the cushion chamber of admitting air can reduce the speed that the tail gas got into, make tail gas can fully contact with catalyst 2, catalyst 2 can change harmful gas such as CO in the tail gas into harmless carbon dioxide through oxidation and reduction, Water and nitrogen gas, prevent that tail gas from causing the pollution to the air, tail gas through 2 catalysis of catalyst is again in proper order through the cushion chamber of giving vent to anger, No. two filter screen layers 8, adsorbed layer 7 and filter screen layer 6 discharge to the external world, the cushion chamber of giving vent to anger can reduce tail gas exhaust speed, make tail gas can fully contact with catalyst 2, No. 8 filter screen layers, adsorbed layer 7 and filter screen layer 6 can adsorb tail gas once more and filter, improve the tail gas treatment effect.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the bottle main body 1, the catalyst 2, the filter assembly 3, the sleeve 4, the filter element 5, the first filter layer 6, the adsorption layer 7, the second filter layer 8, the annular ribs 9, the catalyst case 10, the vent holes 11, the flexible filler 12, the clamping member 13, the fixing member 14, the connecting end 15, the fixing end 16, the triangular connector 17, the fixing hole 18, the vent hole 19, the air inlet buffer chamber, the air outlet buffer chamber, etc., are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a diesel fork truck exhaust emissions aftertreatment device, includes bottle main part (1), its characterized in that is provided with catalyst (2) in the bottle main part (1), bottle main part (1) inner wall on still be equipped with flexible filler (12), bottle main part (1) both ends still are equipped with two detachable filtering component (3) respectively.

2. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 1, characterized in that the flexible filler (12) is sponge, the two filter assemblies (3) are symmetrically arranged along the center line of the truck body (1), the filter assemblies (3) comprise two detachable sleeves (4) respectively connected with the truck body (1), and filter elements (5) are further arranged in the sleeves (4).

3. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 2, characterized in that the filter element (5) comprises a first filter screen layer (6), an adsorption layer (7) and a second filter screen layer (8) which are arranged in the sleeve (4) in sequence.

4. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 3, characterized in that an adsorption material is arranged in the adsorption layer (7), and the filter mesh diameter of the first filter mesh layer (6) is larger than that of the second filter mesh layer (8).

5. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 4, characterized in that the adsorption material arranged in the adsorption layer (7) is activated carbon.

6. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 2, characterized in that the bottle main body (1) is cylindrical, two annular ribs (9) are symmetrically arranged on the inner wall of the bottle main body (1) along the center line of the bottle main body (1), the top of each annular rib (9) is connected with a catalytic box (10) filled with the catalyst (2), and the end wall of each catalytic box (10) is provided with a plurality of vent holes (11).

7. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 6, wherein the sleeve (4) is conical, one end of the sleeve (4) with a larger aperture is inserted into the bottle body (1) and is matched with the annular rib (9) rib, the outer wall of the sleeve (4) is tightly fitted with the inner wall of the bottle body (1), and an air inlet buffer cavity and an air outlet buffer cavity are respectively formed between the two ends of the catalytic box (10) and the two filtering components (3).

8. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 7, wherein the smaller end of the sleeve (4) is further connected with a fixing piece (14), one end of the fixing piece (14) is a connecting end (15), the other end of the fixing piece (14) is a fixed end (16), the connecting end (15) is inserted into the smaller end of the aperture of the sleeve (4), and the outer wall of the connecting end (15) is tightly fitted with the inner wall of the smaller end of the sleeve (4).

9. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 8, wherein the joints of the sleeve (4) and the annular rib (9) and the joints of the sleeve (4) and the connecting end (15) are provided with clamping pieces (13), the fixing pieces (14) are provided with triangular connectors (17) at the fixed ends (16), and the triangular connectors (17) are provided with a plurality of fixing holes (18) for installing bolts.

10. The exhaust emission aftertreatment device of the diesel fork lift truck according to claim 9, wherein the fastening member (13) is a hoop, the triangular connector (17) has three fastening holes (18), the three fastening holes (18) are arranged in a regular triangle on the triangular connector (17), and the fastening member (14) is further provided with an exhaust hole (19).