CN212758392U - Aeration head is used in production of automobile-used urea solution - Google Patents

Abstract

The utility model provides an aeration head is used in automobile-used urea solution production locates jar internal bottom and is located the feed liquor pipe side below that extends to jar internal portion, and the whole outward appearance of this aeration head is similar with laboratory alcohol burner, and it includes body and intake pipe, and the body upper end middle part is located to the intake pipe and through the pipeline with install the air feeder intercommunication on jar external lateral wall, the body lower extreme is equipped with a plurality of aeration hole, and aeration hole follows body lower extreme center and sets out along its radial outside distribution that disperses. Compared with the prior art, the utility model discloses following beneficial effect has: the aeration area that comes from air feeder's air current through locate the body lower extreme and form behind its radial outside a plurality of aeration hole that disperses the distribution is big, can form the aeration against the current to the automobile-used urea solution of going into from top to bottom after turning back in jar body bottom moreover, fully ensured the stirring and the mixing of automobile-used urea solution, the aeration is efficient.

Description

Aeration head is used in production of automobile-used urea solution

Technical Field

The utility model relates to an automobile-used urea production technical field, concretely relates to automobile-used urea solution production is with aeration head.

Background

Diesel vehicles such as heavy trucks, buses and the like need to reach the national fourth emission standard, and a proper SCR system needs to be selected for tail gas treatment, and the system needs to treat nitrogen oxides in tail gas by using urea solution. Therefore, the vehicle urea solution becomes a necessary product for heavy trucks and passenger cars to reach the national emission standard IV. The automobile urea is a urea water standard solution with the concentration of 32.5 percent and the solvent of ultrapure water, and the production raw materials are special automobile urea raw materials and ultrapure water.

At present, in the traditional automobile urea production process, a stirring impeller method is adopted for stirring and mixing, so that the material dispersibility is poor, the energy consumption is high, the urea solution is easy to crystallize, the impeller needs to be replaced regularly, not only can the economic loss be caused, but also the maintenance of equipment is troublesome, and in the urea decomposition process, toxic gases such as ammonia can be generated.

The utility model patent application number is CN 201420381541.9's utility model patent discloses a car urea standard solution bottom is aeration mixing arrangement against current, including car urea solution feed inlet, aeration pipe way, aeration air inlet, jar body, row's sediment overflow mouth, go up aeration supporting disk, arc bearing water conservancy diversion piece, lower aeration supporting disk, car urea solution discharge gate, roots's fan. The automobile-used urea standard solution passes through the booster pump and gets into jar body from the urea solution feed inlet, gets into next process from the urea discharge gate. The opening of the feeding hole of the urea solution for the vehicle is larger than the discharging hole of the urea solution for the vehicle. The aeration air inlet is connected with an upper aeration supporting disk, the upper aeration supporting disk is connected with an arc bearing flow deflector, the arc bearing flow deflector is connected with a lower aeration supporting disk, and the air passing through the upper aeration supporting disk and the arc bearing flow deflector is aerated from bottom to top to form countercurrent aeration. The utility model discloses simple structure, area are little, go into down on the automobile-used urea solution, and the air is gone into down and is gone out, has formed the aeration against the current, has promoted stirring, the mixture of automobile-used urea standard solution, the effectual problem of solving automobile-used urea solution control crystallization to with the effectual discharge of poisonous gas such as ammonia in the automobile-used urea, guaranteed the purity of product.

But the aeration among the above-mentioned device is that the air current forms after through arc bearing water conservancy diversion piece, just forms the aeration of flowing backwards under its lower aeration supporting disk that sets up stops the effect, and the aeration is regional little, leads to the automobile-used urea solution of lower aeration supporting disk below can't obtain stirring, mix to reduce aeration efficiency, only set up four arc bearing water conservancy diversion pieces moreover, the aeration is not even enough, makes gas-liquid mixture not enough even easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough to prior art, the utility model aims at providing an aeration head is used in production of automobile-used urea solution, the air current is regional big through aeration behind this aeration head, can form the aeration against the current to the automobile-used urea solution that advances down to go into in addition after automobile-used urea solution jar body bottom is turned back, has fully ensured automobile-used urea solution's stirring and mixing, and the aeration is efficient.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of aeration head is used in production of automobile-used urea solution locates jar internal bottom and is located and extends to the feed liquor pipe side below of jar internal portion, this aeration head whole outward appearance is similar with laboratory alcohol burner, it includes body and intake pipe, the intake pipe is located body upper end middle part and through the pipeline with install air feeder intercommunication on the external lateral wall of jar, the body lower extreme is equipped with a plurality of aeration hole, the aeration hole is followed body lower extreme center is set out and is radially outwards dispersed the distribution along it.

Furthermore, the body is divided into a horn cover, a horn ring and a flat bottom cover from top to bottom, and the three are sequentially and inwardly formed integrally through arc transition; the aeration holes are respectively arranged on the horn ring and the flat bottom cover.

Furthermore, the aeration holes in the horn ring are arranged along the normal direction, and the aeration holes in the flat bottom cover are obliquely arranged from inside to outside.

Further, the intake pipe lower extreme extends to be equipped with two-layer air outlet pipe group in the horn cover, two-layer air outlet pipe group stagger the setting.

Furthermore, each layer of the air outlet pipe group comprises 6 air outlet pipes which are uniformly distributed along the circumferential direction of the air inlet pipe.

Furthermore, the pipe diameter of the air outlet pipe is smaller than the inner diameter of the air inlet pipe and larger than the aperture of the aeration hole.

Further, the gas supply device is a roots blower.

Compared with the prior art, the utility model provides an aeration head is used in automobile-used urea solution production has following beneficial effect:

1. the aeration area formed by the airflow from the air supply device passing through the plurality of aeration holes which are arranged at the lower end of the body and radially and outwardly distributed along the lower end of the body is large, and the backflow aeration can be formed on the vehicle urea solution which is fed in and discharged out from the upper part after the airflow is turned back at the bottom of the tank body, so that the stirring and mixing of the vehicle urea solution are fully ensured, and the aeration efficiency is high;

2. through two arc transitions among the horn cover, the horn ring and the flat-bottom cover, the air flow entering the body from the air inlet pipe is expanded and then compressed, so that the pressure of the air flow is increased, the flow speed is higher when the air flow passes through the aeration holes, and the aeration efficiency of the solution is improved;

3. the aeration holes in the horn ring are arranged along the normal direction, and the aeration holes in the flat bottom cover are obliquely arranged from inside to outside, namely, the air flow is diffused outwards after passing through the aeration holes in the flat bottom cover, so that the aeration space area can be further increased, and the air flow coming out of the aeration holes in the horn ring can be crossed after the bottom of the tank body is turned back to form disordered turbulence, so that the aeration efficiency of the solution is further improved;

4. the air flow from the air supply device can be divided by the two layers of air outlet pipe groups arranged at the lower end of the air inlet pipe in a staggered manner, so that the air flow uniformly enters each aeration hole, and the aeration efficiency is improved;

5. the air feeder that sets up is roots's fan, can last to improve the positive pressure air current for the body, prevents effectively that automobile-used urea solution from flowing backward to this internal through the aeration hole to long-term operation for the aeration head provides the guarantee.

Drawings

FIG. 1 is a schematic structural view of a main view of an aeration mixer including the present invention;

FIG. 2 is a schematic perspective view of an aeration head;

FIG. 3 is a schematic bottom view of the aeration head;

FIG. 4 is a schematic sectional view of an aerator;

FIG. 5 is a schematic view of a partial cut-away structure of an aeration head;

fig. 6 is an enlarged structural diagram of a part a in fig. 5.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1-6, the utility model provides an automobile-used urea solution production is with aeration head 3, locate jar internal bottom and be located and extend to jar 2 side below of feed liquor pipe inside 1, the whole outward appearance of this aeration head 3 is similar with laboratory alcohol burner, it includes body 30 and intake pipe 31, intake pipe 31 is located body 30 upper end middle part and is passed through the pipeline and install the 4 intercommunications of air feeder on jar body 1 lateral wall, body 30 lower extreme is equipped with a plurality of aeration hole 32, aeration hole 32 is followed body 30 lower extreme center and is started along its radial outside distribution of dispersing. The aeration area that comes from air feeder's air current through locate the body lower extreme and form behind its radial outside a plurality of aeration hole that disperses the distribution is big, can form the aeration against the current to the automobile-used urea solution of going into from top to bottom after turning back in jar body bottom moreover, fully ensured the stirring and the mixing of automobile-used urea solution, the aeration is efficient.

Specifically, as shown in fig. 4, the body 30 is divided into a horn cover 301, a horn ring 302 and a flat bottom cover 303 from top to bottom, and the three are integrally formed by arc transition in sequence; the aeration holes 32 are respectively arranged on the horn ring 302 and the flat bottom cover 303. Through arc transition twice, the air current that enters into in the body 30 from intake pipe 31 is through expanding earlier the compression back, and pressure increases, and the velocity of flow is faster when passing through aeration hole 32 to can improve the aeration efficiency of solution.

As shown in fig. 4 and 5, the aeration holes 32 on the horn ring 302 are arranged along the normal direction, the aeration holes 32 on the flat bottom cover 303 are arranged obliquely outwards from inside to outside, that is, the air flow is diffused outwards after passing through the aeration holes 32 on the flat bottom cover 303, so that the aeration space area can be further increased, and the air flow coming out of the aeration holes 32 on the horn ring 302 can be crossed after the bottom of the tank body 1 is turned back to form disordered turbulent flow, thereby further improving the aeration efficiency of the solution.

The lower end of the air inlet pipe 31 extends to the bell cover and is internally provided with two air outlet pipe groups 311, and as shown in detail in fig. 6, the two air outlet pipe groups 311 are arranged in a staggered manner; each layer of outlet pipe set 311 comprises 6 outlet pipes uniformly distributed along the circumferential direction of the inlet pipe 31; the pipe diameter of the air outlet pipe is smaller than the inner diameter of the air inlet pipe 31 and larger than the aperture of the aeration hole 32. Through the two-layer air outlet pipe group 311 arranged in a staggered manner, the air flow from the air supply device 4 can be divided, so that the air flow uniformly enters each aeration hole 32, and the aeration efficiency is improved.

In this embodiment, the gas supply device 4 is a roots blower. The roots's fan can last to improve the positive pressure air current for body 30, effectively prevents that automobile-used urea solution from regurgitating to the body 30 in through aeration hole 32 to long-term operation for aeration head 3 provides the guarantee.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an automobile-used urea solution production is with aeration head, locate a jar internal bottom and be located and extend to the feed liquor pipe side below of internal portion of jar, its characterized in that, this aeration head whole outward appearance is similar with laboratory alcohol burner, it includes body and intake pipe, the intake pipe is located body upper end middle part and through the pipeline with install air feeder intercommunication on the external lateral wall of jar, the body lower extreme is equipped with a plurality of aeration hole, the aeration hole is followed body lower extreme center is set out and is radially outwards dispersed the distribution along it.

2. The aeration head for producing the urea solution for the vehicle according to claim 1, wherein the body is divided into a horn cover, a horn ring and a flat bottom cover from top to bottom, and the three are integrally formed by arc transition in sequence; the aeration holes are respectively arranged on the horn ring and the flat bottom cover.

3. The aeration head for producing the urea solution for the vehicle as claimed in claim 2, wherein the aeration holes of the horn ring are formed along a normal direction thereof, and the aeration holes of the flat bottom cover are formed to be inclined outward from inside to outside.

4. The aeration head for producing the urea solution for the vehicle according to claim 2 or 3, wherein the lower end of the air inlet pipe extends to the inside of the bell-shaped cover, and two layers of air outlet pipe groups are arranged in a staggered manner.

5. The aeration head for the production of urea solution for vehicles according to claim 4, wherein each of the outlet pipe groups comprises 6 outlet pipes uniformly distributed along the circumferential direction of the inlet pipe.

6. The aeration head for production of urea solution for vehicles according to claim 5, wherein the pipe diameter of the air outlet pipe is smaller than the inner diameter of the air inlet pipe and larger than the aperture of the aeration hole.

7. The aerator for vehicle urea solution production as claimed in claim 1, wherein the gas supply device is a roots blower.

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